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  • Development Overview Analysis of Tempered Vacuum Glass Industry in 2022
    The tempered vacuum glass industry is subject to the current domestic economic cycle model and can be analyzed primarily using the "investment clock" model (a very useful tool for guiding the investment cycle developed by Trevor Greetham, Senior Director of Global Asset Management at Merrill Lynch in 2004). In the context of the tempered vacuum glass industry, the model reveals the following principles of economic volatility: When inflation lags behind sustainable economic growth rates, indicating excess capacity, the government will take active steps to stimulate the economy, reduce costs and promote recovery; if inflation exceeds sustainable economic growth rates, this will prove that there is no excess capacity in the economy. The government will adopt relevant policies to curb the economy, cool the economy and adjust the development process of the tempered vacuum glass industry. The main strengths of China's economic development that are currently closely linked to the tempered vacuum glass industry include: 1. stable socio-political environment, increasing openness to the outside world and accelerating the process of integration into the rules of international economic operation. 2. relatively low labor costs and high quality labor resources in the tempered vacuum glass industry. 3. The stable basis of RMB exchange rate is conducive to the stable development of the tempered vacuum glass industry. At the same time, the domestic outstanding economic problems on the tempered vacuum glass industry. The economic structure is not reasonable enough, and some deep-rooted conflicts in enterprise reform have not been solved. The unreasonable and prominent industrial and consumption structures. Affected by the epidemic, the upstream and downstream groups in the tempered vacuum glass industry are still under great pressure of layoffs and unemployment, and due to the pressure of social security and employment issues, most urban and rural residents have stalled in upgrading their consumption structure. The latter two factors greatly limit the expansion of domestic demand, but the government's efforts to address these major issues are still increasing. This is the fundamental guarantee that China's economic situation will continue to strengthen and have a positive impact on the tempered vacuum glass industry. Development environment analysis of tempered vacuum glass industry in 2022 The environment of the tempered vacuum glass industry continues to improve, and new market players continue to emerge. According to the National Bureau of Statistics, China's gross domestic product (GDP) grew by 8.1% over the previous year, with an average growth of 5.1% in two years, ranking top among the world's major economies. The size of the economy exceeded 110 trillion yuan, reaching 114.4 trillion yuan, firmly placing it as the second largest economy in the world. Per capita GDP exceeded 80,000 yuan. 2021 China's per capita GDP reached 80,976 yuan, or $12,551 at the average annual exchange rate, exceeding the world's per capita GDP level. During this period, the tempered vacuum glass industry has developed steadily and maintained growth. 2021 new tax and fee reductions and the inauguration of the Beijing Stock Exchange also opened up a new world of direct financing for enterprises related to the tempered vacuum glass industry. The unbalanced and inadequate development under the impact of the epidemic has been highlighted, and the domestic strategy of actively expanding domestic demand and vigorously promoting the structural reform on the supply side have made new progress in the structural adjustment and transformation and upgrading of the tempered vacuum glass industry. The national resident Engel coefficient of 29.8%, down 0.4 percentage points from the previous year, the contribution of domestic demand to business growth dominated, the consumption structure continues to upgrade, the demand structure of the tempered vacuum glass industry also continued to improve with it. Analysis of the impact of the international situation on the development of the tempered vacuum glass industry After the Russia-Ukraine conflict, global commodity prices rose across the board, and oil prices exceeded one hundred U.S. dollars for the first time in nearly eight years, indirectly leading to rising operating costs in the tempered vacuum glass industry. And the global high expansion pressure also rose rapidly with the oil price. The next few years in the toughened vacuum glass industry industry chain upstream and downstream enterprises will face greater pressure. At the same time affected by the epidemic to see the world economy struggling to recover, the global production and supply cycle is not good, around the tempered vacuum glass industry is also actively promoting the construction of new development ideas. Although a comprehensive view, domestic development is facing demand contraction, supply shock, is expected to turn weak and other pressures, but the long-term positive fundamentals of the tempered vacuum glass industry has not changed, the development of good resilience, full potential, space characteristics have not changed. Economic structure analysis of the tempered vacuum glass industry First, the degree of marketization of the tempered vacuum glass industry is gradually improved. From the upstream supply to the input market is completely configured by the market; mergers, bankruptcies and reorganizations are often realized between enterprises through the capital market; the industrial layout shows the trend of concentration of resources (capital, technology, talents), and the role of industry associations gradually shows advantages. Second, the toughened vacuum glass industry industry supporting close. From the industry structure, China's tempered vacuum glass industry has many sub-industries, the industrial chain system is relatively complete; from the industrial distribution, large enterprises are concentrated in key cities, while small and medium-sized enterprises in the county, town, township, forming industrial clusters, basically forming a coordinated pattern of supporting each other. Third, domestic demand is the main pull. With the rapid growth of the national economy and the increase in disposable income of residents, domestic demand for tempered vacuum glass industry has greater room for growth, will continue to be the main driving force behind the development of the industry.

    2022 06/23

  • Lessons for Vacuum Glass from the International Year of Glass 2022
    2022 United Nations International Year of Glass For more than 60 years, the United Nations General Assembly has recognised international cooperation, concerted efforts and the contributions to society made by relevant organisations and institutions in important areas, such as the International Year of Astronomy (2009), the International Year of Chemistry (2011), the International Year of Light and Light-based Technologies (2015) and the International Year of the Periodic Table of Chemical Elements (2019), through the proclamation of United Nations international years. And the International Year of Glass in 2022 is the first time the United Nations has named a year after a single material, highlighting the importance of glass materials in the development of human society. As we all know, glass is one of the earliest man-made materials invented by mankind, and its appearance and use in human life has a history of thousands of years, from 4000 years ago in Mesopotamia to the remains of ancient Egypt, there have been small glass beads unearthed. Nowadays, with the rapid improvement of technology, it is widely used in construction, communication, transportation, life and health, new energy, aerospace, art, etc. It is a very important material in daily life and high technology, and has played an important role in the history of human civilisation and technological invention. For example, glass optical fibres have brought about a paradigm shift and triggered a global communication revolution; the development of glass optics and optoelectronics has expanded mankind's understanding of the universe; glass panels have supported solar cells and provided clean energy; bio-glass enables muscle tissue design and regeneration; insulating and vacuum glass for architectural windows and doors curtain walls has saved a lot of energy and reduced carbon emissions for the whole society since the energy crisis, etc ...... This transparent and empowering material has not only entered millions of homes and become an important medium for art, but has also supported the development of many technologies. Its history is linked to that of mankind. The Inspiration of Vacuum Glass With the progress of society, the role of glass in architecture is no longer just lighting, but also functional alternatives such as all-glass curtain walls and, of course, the more important one of energy saving! From single-piece glass to multi-cavity insulating glass and vacuum glass, the history of architectural glass development is also a history of the progress of human civilisation. In the context of global carbon reduction, architectural glass, as the most used glass category, will certainly write a strong mark in the history of glass development. It is hoped that as the activities of the International Year of Glass unfold, the public's awareness of glass will deepen, which will in turn drive the progress of the glass industry, especially the awareness of energy-efficient glass in buildings, and increase public attention and government policy support! To promote the application and progress of energy-efficient glass in buildings. Life and responsibility As a vacuum glass manufacturer, ICESUN Vacuum Glass should practice its internal strength to provide the society with products of excellent quality. Vacuum glass enterprises should be deeply aware of their responsibilities and missions, as an alternative to hollow glass is also a change agent, sharpen their efforts and be a pioneer. The majority of builders, design institutes, door and window factories recognize the importance of glass energy saving, and are guided by national policy standards, always thinking of the owners and making due contributions to the whole society in energy saving and emission reduction. Vacuum glass as a new generation of energy-saving glass, super energy-saving and super thin, its role is not only reflected in the energy-saving building operations, more importantly, can reduce the production and transportation of the whole cycle of carbon emissions, saving a lot of resources for society, with the improvement of energy-saving standards, the government will certainly increase the promotion and policy support efforts.

    2022 06/18

  • Vacuum Glass Help to Reduce Energy Consumption at Home
    Recently, energy prices have soared, with coal prices up 50% from the beginning of this year, and natural gas and oil prices up 100% and 40% respectively, while China's total energy consumption has increased by 2.4% year-on-year, which not only raises the cost of economic development, but also directly increases the energy consumption expenditure of ordinary households. At home, energy saving Vacuum Glass Help to Reduce Energy Consumption. Among household energy consumption, vehicle fuel and heating and cooling are the largest energy consumption expenditures. With fuel prices rising in the first quarter of this year, China's new energy vehicle sales also surpassed the one million mark, up 140% year-over-year, and it is clear that more and more households have turned to new energy vehicles to control household spending. At the same time, scientists and head companies at the forefront of building technology and materials have been able to control winter heating and summer cooling costs effectively through near-zero energy building technology and more energy-efficient windows and doors! In April 2022, residents in the northeast of China found that their heating costs differed significantly: in the case of homes of about 100 square meters, for example, due to the increase in coal prices, some residents' winter heating costs increased by more than 2,000 yuan compared to previous years, while others replaced their ICESUN vacuum glass homes with no significant change in heating costs. So, what are the factors that caused such a significant contrast? We know that the heat exchange through windows and doors accounts for about 44% of the heat exchange between indoor and outdoor, and high performance vacuum glass becomes the key to heat insulation, energy saving and cost control at home. From the perspective of performance parameters, the insulation performance of vacuum glass windows is 2-4 times that of ordinary insulating glass windows, which can not only reduce heating costs in winter, but also significantly reduce the running time of air conditioning in summer; according to estimates, compared to ordinary insulating glass, ordinary families can reduce heating and cooling costs by more than 50% throughout the year. As an epoch-making high-tech glass product, vacuum glass not only has excellent thermal insulation performance, but also its sound insulation and noise reduction performance is significantly better than ordinary insulating glass products. Vacuum glass is not only a guarantee for a peaceful and comfortable life, but also an important barrier for a healthy home! With the in-depth implementation of the "double carbon" policy, the concept of energy saving, low carbon and green development has become a trend, and ICESUN vacuum glass and its series products will certainly help the beautiful vision of ideal living become a reality in this tide of the times!

    2022 06/06

  • Main Performance of Vacuum Glass & Comparison to Insulating Glass
    Thermal Insulation Performance As is well known, heat transfer occurs in three ways: conduction, convection, and radiation. The vacuum layer in the middle of the vacuum glass reduces the heat transfer by conduction and convection so low that it can be ignored. Therefore, vacuum glass has better thermal insulation performance than insulating glass. Generally, the heat transfer coefficient of single glass is 6W/M2·k, ordinary insulating glass is 3.4W/M2·k, and the heat transfer coefficient of vacuum glass can reach 0.5W/M2·k. After using vacuum glass, the air conditioner saves energy by 50%. Vacuum glass is the architectural glass with the best energy saving effect in the world. Anti-condensation and frost resistance Due to the high thermal insulation coefficient of vacuum glass, the temperature drop of the glass surface on the indoor side is small, so condensation and frost can be greatly prevented. Compared with the insulating glass under the same conditions, the dew condensation temperature of vacuum glass is much lower than that of insulating glass. Sound insulation and noise reduction performance Due to the unique structure of vacuum glass, it can effectively overcome the weakness of insulating glass that is easy to resonate in the middle and low frequency bands, and exert its good sound insulation effect. In most frequency bands, especially in the middle and low frequency bands, the sound insulation performance of vacuum glass is better than that of insulating glass. The sound insulation performance of vacuum glass is better than that of insulating glass, and the overall sound insulation level is higher than that of insulating glass. The weighted sound insulation of the vacuum glass reaches the national standard building exterior window air-borne sound insulation performance classification level 3 or above, and meets the requirements of the green building evaluation standard for exterior windows. The combined vacuum glass can reach grade 5 or above, fully meeting the special requirements of grade 5A office buildings, five-star hotels and hospitals. Wind resistance Since the vacuum glass itself is a negative pressure device, there is no problem of bursting when it is transported to the plateau low pressure area or encounters negative wind pressure, and there is no problem that the thermal conductivity of the insulating glass increases when it is installed horizontally and at an inclination rate. Generally speaking, its wind pressure resistance is 1.5 times that of insulating glass supported by the same glass thickness. Durability The service life of vacuum flat glass depends on the following factors: one is the quality of the edge sealing; the other is the reliability of the sealing head; the third is the selection of the nonevaporable getter. Modern vacuum technology can fully guarantee vacuum glass to reach a vacuum life of more than 50 years. The high-quality low-e LOW-E films currently produced are all based on silver films, which are very afraid of being oxidized by moisture. This film is placed in vacuum glass to find the best "sanctuary", which can ensure its high efficiency and longevity. Performance Comparison of Vacuum Glass & Insulating Glass Insulating glass is an upgraded product of single-layer ordinary glass, and vacuum glass is an upgraded product of insulating glass. The appearance and structure of the two are basically the same, and they are both composed of two layers of glass. The difference is that the two layers of glass in the former are ordinary air or argon, and that in vacuum glass is a vacuum, which makes the big difference of their performance. Comparison of Thermal Insulation Performance Vacuum glass is a new generation of energy-saving architectural glass. Its thermal insulation performance is twice that of insulating glass and four times that of single-piece ordinary glass. The 12.4mm thick tempered vacuum glass may have three times the thermal insulation and heat resistance properties of the 32mm thick German triple insulating glass. And the U value of vacuum glass can be low to 0.4W/m2*K while that of insulating glass is 3.4W/m2*K. Comparison of Anti-condensation Performance Under the same humidity conditions, the condensation temperature of vacuum glass is lower, and the test shows vacuum glass may appear condensation only when the temperature is under -50℃. This is extremely beneficial for winter lighting in severe cold areas, and vacuum glass will not have the problem of "internal condensation" that often occurs with insulating glass. "Internal condensation" is caused by the condensation of moisture in the insulating glass at a lower temperature, which cannot be removed at all, seriously affecting vision and lighting. It can be seen that vacuum glass has high thermal resistance, and has better anti-condensation performance than insulating glass. Comparison of Sound Insulation Performance The below table shows that the sound insulation of ordinary insulating glass is only 20.8dB, and the sound insulation of vacuum glass can reach 38dB, which is nearly twice that of ordinary insulating glass; even in the daytime, doors and windows equipped with vacuum glass can also reduce The indoor noise is reduced to 29dB, and the outdoor environmental noise is reduced by more than 50%, which meets the requirement that the nighttime noise in the bedroom is less than 30dB stipulated in the new version of the General Code for the Building Environment. No. Windows configuration Noise when window open (dB) Noise when window closed (dB) Sound insulation (dB) 1 60 broken bridge aluminum window + insulating glass 68.3 47.5 20.8 2 60 broken bridge aluminum window + vacuum glass 65.4 29 36.4 In most frequency bands, especially in the middle frequency and low frequency bands, the noise reduction performance of vacuum glass is better than that of insulating glass. Comparison of Wind Pressure Resistance Half the thickness of the insulating glass, the wind pressure resistance of the vacuum glass has reached the highest level of the national standard; twice that of the insulating glass. Tempered vacuum glass is an ultra-thin material formed by connecting two pieces of tempered glass and titanium alloy under atmospheric pressure. It has high resistance to deformation under the action of external force. Our industrial tempered vacuum glass technology improves its wind pressure resistance and strength, far superior to ordinary vacuum glass and argon-filled tempered low-e insulating glass. Comparison of Energy-saving Effects Single vacuum saves 30% energy than coated insulating glass, and vacuum composite low-e saves 60% energy than insulating glass. In addition, vacuum glass is sealed with special materials, which can change the air intake problem of insulating glass due to the failure of sealant. This means considerable savings in energy bills every year. Based on the above comparison and analysis, it is concluded that energy-saving sound insulation vacuum glass is the third generation of door and window glass respected internationally after single-layer glass and insulating glass, and it is one of the most effective energy-saving door and window materials at present. The use of vacuum layer insulation is the most material-saving, space-saving, and energy-efficient insulation method. In the future, the doors and windows, walls and even roofs of buildings can be turned into vacuum, allowing people to truly live in a "thermos flask".

    2022 05/28

  • Vacuum Glazing Applied for Old Windows Renovation & Restoration in Europe
    The EU(Europe Union) has pledged to realize carbon neutral by 2050. As one of the important components of the whole energy consumption, building energy consumption plays a vital role in it. In order to reduce building energy consumption, energy-saving glass has become the general trend, and has been and will continue to be widely used in buildings. Different from ordinary glass, energy-saving glass requires the glass itself to have better thermal insulation properties. As the most energy saving glass, vacuum glazing will be the best choice. According to the manufacturing process, it is mainly divided into coated glass, insulating glass, laminated glass, vacuum glass, etc. The former widely used coated glass is Low-E glass. Most of these glasses offer good thermal insulation, but they do have one problem: their construction is bulky. Most buildings in Europe are historical buildings or buildings over 50 years old. The original construction of their windows was thin, which meant that insulated glass or Low-E coated glass would not be a good match for them. If the overall structure of the window is changed, it will increase the cost and destroy the original state of the building. So, how can we strike a balance between insulating performance and remaining pristine? The answer is to replace the insulating glass with another vacuum glass that is thinner but has better performance in terms of thermal insulation and energy saving. Compared to triple-layer insulating glass, ICESUN Toughened Vacuum Glass is only a quarter of the thickness and has a better U-value. The thickness of tempered vacuum glass is only 12.4 mm, which is equivalent to single-layer glass. While replacing the old single-layer glass in historical buildings with tempered vacuum glass, the original window frame can be retained. Ideal for residents who wish to improve the thermal and acoustical properties of their windows, as well as their anti-condensation features, by replacing their window glass while retaining the sash. For instance, there was a customer from UK who offered his requirements: [17 square meters of glass needs to be replaced for the renovation of the second-class protected building." We recommend vacuum glass to replace old windows. There are many old protected buildings in Europe area, which means vacuum glazing has huge market in old windows renovation and restoration.

    2022 05/24

  • Technology Achieves Vacuum Glass • Innovation Creates Green Future
    Glass is a very common material in our daily production and life, and its uses have become more and more numerous over time. Today, in order to meet people's higher demands and the rapid development of industrialization, tempered vacuum glass has emerged as the times require. So, who has developed this vacuum glass? What are the advantages that ordinary glass does not have? What changes can it bring to our country's glass industry? Science and technology are global and epochal, and the development of science and technology must have a global perspective. At present, major breakthroughs and accelerated applications of technological innovation are likely to reshape the global economic structure and transform the arena of industrial and economic competition. For any innovative product, whoever has independent intellectual property rights has the initiative and has a broader market space. Just like the tempered vacuum glass with international advanced level developed by ICESUN Vacuum Glass Ltd., Chinese glass industry has unlimited vitality in the new round of technological and industrial changes, and it also provides innovation and support force for our dream of becoming a powerful country. The chairman of ICESUN company, Dr. Li Hongyan, is the leader of this innovative change. Clear Goals & Dedicated Life Everyone's life is an experience, and the value of life is reflected in the mileage of running well. Dr. Li Hongyan, born in Mengzhou, Henan Province, seems to be born for glass. He has been focusing on the glass business for more than 20 years. With wisdom, courage, persistence and tenacity, he has done his best to lead the innovative development of the glass business. While being recognized and respected by the industry, his life value has been infinitely magnified into social value. When Li Hongyan was doing his graduation project in 1994, he learned that the energy-saving performance of ordinary insulating glass is poor, and the production of vacuum glass is very immature and still in the conceptual stage. Therefore, a scientific research team was organized to develop tempered vacuum glass. He found that the biggest difficulty is "low-melting edge sealing", which is a worldwide problem. Inspired by the ancient method of colored glaze that originated in China more than 2,000 years ago, Li Hongyan's team developed a low-melting glass with a sealing temperature of 430 ° C through painstaking research, which is widely used in domestic aerospace companies. Glass, metal and vacuum sealing between ceramics, and vacuum glass edge sealing. As the only qualified vacuum glass edge sealing material that has been verified by time, the low melting point glass infiltrates with the flat glass after melting, forming chemical bonds between atoms, and becomes a dense whole with the glass plate after cooling. Its air tightness, strength, weather resistance, service life and other properties are comparable to those of glass plates, and can withstand various harsh climate environments, and the life of vacuum glass can reach 50 years. The team cheered, but the user was greeted with a bowl of cold water: annealing tempered glass at a high temperature of 430°C can only make non-tempered ordinary vacuum glass, and cannot be used alone in high-rise buildings. This is the reason why other vacuum glass manufacturers in the world cannot produce tempered vacuum glass and must add an extra piece of tempered glass composite hollow. It cannot form a differentiated competitive advantage with three-glass two-chamber insulating glass. Is it possible to utilize other glass sealing techniques? The vacuum glass was sealed with an alloy with a melting point lower than 350 °C: it was found that the edge sealing layer was not dense enough, and there were air leakage channels, which could not meet the long-life vacuum sealing requirements of the vacuum glass. Even if a short-term vacuum is occasionally obtained, it is difficult to meet the requirements of glass manufacturing, transportation, installation and use due to insufficient welding strength. Edge sealing with vacuum organic glue: All organic glues cannot meet the requirements. Repeated failures made team members disheartened; time and time again, Dr. Li Hongyan ignited the team with his passion for serving the motherland. After six years of unremitting efforts, in 2001, by using the method of infrared local heating, the tempered vacuum glass was successfully produced for the first time, and the state of the fragments during testing reached the international standard of tempered glass. However, the method of infrared local heating is not efficient, the process is complex, and the yield is low. Dr. Li Hongyan further developed sealing glass with a lower melting point. The hard work pays off. Through tens of thousands of experiments, lead-free low-melting glass with a sealing temperature of 360°C and lead-containing low-melting glass with a sealing temperature of 300°C have come out one after another. These low-melting glass are suitable for various tempered vacuum glass production processes. Dr. Li Hongyan team have conquered the world problem of "low melting point edge sealing" of tempered vacuum glass in one fell swoop. In 2003, Dr. Li Hongyan led the successful construction of a pilot test line. After the success of the pilot test, the project of "development of flat-sealed tempered vacuum glass and development of melting sealing technology" successively applied for the national invention patent (patent number 03160042.5) and the United States Invention patent (patent number is US 2005/0243451 AI), and won the second prize of China Building Materials Science and Technology Progress Award in one fell swoop. It has laid a solid foundation for the vacuum glass productivity transformation of this achievement. Scientific Research & Innovation, Striving for First-class Ambition The tempered vacuum glass invented by Dr. Li Hongyan is separated by a 0.2 mm high support, and the edge of the two layers of glass plates is sealed with low temperature glass, and then the air is exhausted. The vacuum degree between the glass is 10-4Pa, so the heat convection does not exist, the heat conduction is reduced to the limit, and the LOW-E layer reflects more than 95% of the infrared radiation, so the heat between the inner and outer glass plates cannot be exchanged, reaching the Excellent thermal insulation effect. Tempered vacuum glass size: maximum 3000 × 2000 mm; minimum 300 × 300 mm; thickness 6 ~ 20 mm. From the perspective of energy consumption, our country's current building energy consumption is higher than 30% of the country's total energy consumption. More than 50% of the building energy consumption is lost through doors and windows, and glass accounts for 70% of the window area. Dr. Li Hongyan's product test shows that, after replacing the tempered vacuum glass in wooden houses in North America, heating costs can be saved by 32%. After inserting a single piece of tempered vacuum glass into the wooden window, it is tested by the National Building Materials Testing Center and fully meets the requirement that the K value of the passive house window is less than 0.8W/m2·K. From the perspective of compression resistance, the tempered vacuum glass invented by Dr. Li Hongyan has high deformation resistance under the action of external force. Their industrial tempered vacuum glass technology improves its wind pressure resistance and strength, far superior to ordinary vacuum glass and argon-filled tempered LOW-E insulating glass. By installing this tempered vacuum glass in the test room, the indoor and outdoor temperature is 100 ℃, and the continuous test is 385 days. The tempered vacuum glass is intact and the deformation is only 1%; the ultra-high thermal insulation performance remains unchanged. It fully shows that tempered vacuum glass can be used safely in different harsh environments around the world, and it has become a real super glass. At the same time, the sound insulation performance of this tempered vacuum glass is 11 decibels better than that of ordinary insulating glass. The maximum sound insulation of a single piece of tempered vacuum glass can reach 41 decibels. According to the different needs of different people, composite hollow or laminated glass can be made into ultra-quiet transparent glass with the strongest sound insulation performance in the world, which truly keeps people away from noise hazards. Passive house architecture has been widely promoted around the world since it was proposed in 1988. Low energy consumption is achieved by building exterior walls, doors and windows with high thermal insulation and high airtightness. The natural lighting of comfortable buildings is inseparable from glass. At present, four-glass three-chamber insulating glass or ordinary vacuum glass with poor light transmittance are used in houses, but a large amount of glass has leaked air, but it has not attracted enough attention. How do users know at any time if their window glass has leaked? How to make the life of the window glass reach the long life of the passive house? The tempered vacuum glass invented by Dr. Li Hongyan effectively solves these problems. Through the low melting point glass edge sealing, it not only completely solves the problem of leakage of the edge sealing glue that plagues the four-glass three-chamber insulating glass; The problem of rapid oxidation failure of LOW-E film; the improvement of strength and the realization of complete thinning have greatly improved the life of passive house windows, and the life of glass can reach more than 50 years. The thoughtful design of the "vacuum eye" in the tempered vacuum glass allows users to know the life of their windows at any time. Tempered vacuum glass makes Passive House windows a real product of conscience. "Building a global tempered vacuum glass production base is not just a dream. Do it seriously, firmly occupy the commanding heights of the industry, and firmly grasp the supply side, and the dream will definitely become a reality." With the love for the glass industry, Dr. Li Hongyan will continue to forge ahead, climb the peak bravely, step by step, and use the strategy and tactics of advancing with the times to truly promote the transformation and upgrading of China's glass industry and contribute to the economic construction.

    2022 05/16

  • Introduction and Advantages of ICESUN Tempered Vacuum Glass
    Under the background of the increasing shortage of energy and the high proportion of building energy consumption, ultra-low energy consumption buildings such as passive buildings and net zero energy consumption have become the hot favorites of the global construction industry, and many countries are vigorously developing them. The European Union issued the Energy Efficiency of Buildings Directive (EPBD) in 2010, which stipulates that in 2018, all new public buildings owned or used by the government should meet the requirements of near-zero energy consumption; in 2020, all new buildings should meet the requirements of near-zero energy consumption. The U.S. Department of Energy's "Net-Zero Energy Commercial Building Initiative" proposes that by 2030, all new public buildings will be constructed in accordance with net zero energy standards; by 2040, 50% of existing public buildings will meet net zero energy requirements; By 2050, all public buildings reach net zero energy consumption. Our country's building energy efficiency standards are gradually improving and improving. In October 2016, Beijing issued the "Beijing Action Plan for Promoting the Development of Ultra-Low Energy-Consumption Buildings (2016-2018)", which is proposed to "build an ultra-low-energy-consumption demonstration building of no less than 300,000 square meters within three years". "The goal is that for social investment projects, the municipal finance will give incentive funds ranging from 600 to 800 yuan per square meter. As a complex, the building can be improved in many aspects to achieve the purpose of energy saving, and the transparent envelope is the main window for the energy dissipation of the whole building, so improving the energy-saving performance of glass should not be underestimated. As the most high-end and energy-saving product, vacuum glass has been developed in China for nearly 20 years. From the initial laboratory sample to the current large-scale application product, more and more people have come to know and understand it. More engineering projects prefer to use vacuum glazing for energy efficiency. Introduction of ICESUN Tempered Vacuum Glass As shown in Figure 1, ICESUN tempered vacuum glass is composed of two flat tempered glass, the edges are sealed to form a vacuum chamber, and evenly arranged supports are placed in the middle, with a height of about 0.2mm. One of the corners is provided with a suction pipe, and the gas is discharged from the suction pipe. In order to maintain the life of the vacuum glass, a suction material is placed at the suction port, and the color of the suction mirror changes from black to white, and the customer can identify that the tempered vacuum glass has failed. We call it the "vacuum eye". Using the same original glass sheet, the central heat transfer coefficient comparison between ICESUN tempered vacuum glass and other glass is shown in Table 1. Table 1 Heat Transfer Contrast of ICESUN Tempered Vacuum Glass and Other Glass No. Glass Type Glass Structure Low-E Glass Emissivity Central heat transfer coefficient U Value W/(m2·k) 1 ICESUN Tempered Vacuum Glass 6Low-E+V+6 0.021 0.25 2 Low-E Common Vacuum Glass 6Low-E+V+6 0.021 0.59 3 Triple Low-E Insulating Glass 6Low-E+12Ar+6+12Ar+6Low-E 0.021, 0.096 0.76 4 Low-E Insulating Glass 6Low-E+12Ar+6 0.021 1.36 5 Common Insulating Glass 6+12Ar+6 - 2.6 It can be seen from Table 1 that the heat transfer coefficient of ICESUN tempered vacuum glass is significantly lower than that of ordinary vacuum glass, Low-E insulating glass and ordinary insulating glass. The internal vacuum degree of ICESUN tempered vacuum glass is higher than 0.01Pa, and the thermal conductivity of gas convection is basically negligible. At the same time, Low-E coated glass is used, which basically isolates the radiation heat conduction. Since the strength of the original glass sheet is increased by 5 times after tempering, the distance between the supports can be expanded from 25mm to 60mm of ordinary vacuum glass, the supports per square meter are reduced by 85%, and the thermal conductivity of the supports is greatly reduced. Based on the above factors, the central heat transfer coefficient of ICESUN tempered vacuum glass can be reduced to 0.25W/(m2·k), while that of ordinary vacuum glass is 0.59W/(m2·k), and that of Low-E double insulating glass is 0.76W/(m2·k), Low-E insulating glass is 1.36W/(m2·k). In addition, the strength of ICESUN tempered vacuum glass: the wind pressure resistance reaches the national highest standard of grade 9 (±5KPa), the temperature difference is 140 ℃ without explosion, the impact resistance has passed the SGCC certification of the United States, and the stress of all parts of the glass surface is uniform. Greater than 95Mpa. In terms of safety: the sound insulation performance exceeds 38 decibels (1.41 times that of insulating glass), the number of particles within the range of 50mm × 50mm after breaking is greater than 40 (meeting the national standard for tempered glass), ultra-thin and ultra-light, which solves the problem of window opening and fan too much. It can seriously cause the problem of deformation and sagging of window frames and hardware. It can be directly laminated with PVB (or SGP) to avoid self-explosion and falling and hurt people. After compounding, it can meet various fire-proof grade requirements and bulletproof requirements. The house color and thermochromic function can achieve the external shading effect while simplifying the structure (greatly reducing the cost) and reducing the operation risk of the glass curtain wall maintenance spider man. The above characteristics make ICESUN tempered vacuum glass solve a series of world problems in thermal insulation, strength and safety in the fields of building curtain walls and lighting roofs. ICESUN tempered vacuum glass makes passive house more energy-efficient, more comfortable and longer Taking Hebei Province`s local standard [Energy-saving Design Standards for Passive Low-Energy Residential Buildings" (DB13(J)/T177-2015) as an example, the heat transfer coefficient K value of the whole window is required to be ≤1.0W/(m2·k), and the heat transfer coefficient of glass is required to be ≤1.0W/(m2·k). The coefficient K value is less than or equal to 0.8W/(m2·k). Thermal insulation: The vacuum layer inside ICESUN tempered vacuum glass has good heat insulation ability. After testing by a third-party organization, ICESUN tempered vacuum glass with a heat transfer coefficient of 0.4 W/(m2·k) is installed in Vicat 70 plastic steel profiles, the heat transfer coefficient has reached 0.792 W/(m2·k), which fully meets the requirements of passive house. (figure 2) Anti-condensation: Due to the low heat transfer coefficient of ICESUN tempered vacuum glass, under severe temperature difference conditions, the surface of indoor and outdoor glass is closer to the ambient temperature, thus greatly reducing the possibility of condensation. Under normal use environment, the surface of ICESUN tempered vacuum glass will not condense. The phenomenon of condensation on other glass is more common, especially in winter when the temperature difference is large. After condensation, in addition to the glass not being able to remain transparent, the dew will infiltrate the sealant between the glass and the profile, resulting in mold and other problems. Sound insulation: The vacuum chamber has excellent sound insulation ability. ICESUN tempered vacuum glass is matched with Vika plastic-steel profiles, and the sound insulation effect of the whole window is better than 38 decibels. Service life: Because the edge is sealed with inorganic materials, and the suction material is placed inside, multiple technical means are used to make the ICESUN tempered vacuum glass and the passive house as long as possible (more than 50 years). Regional applicability: Because there is no gas flow inside ICESUN tempered vacuum glass, it is not limited by ambient air pressure and use angle, and its thermal insulation ability remains unchanged, which can be adapted to different parts of the world and buildings.

    2022 05/12

  • Feasibility Analysis of Vacuum Glazing for Energy-saving Renovation of Existing Buildings
    With the development of economy and the improvement of people's living standards, people have higher requirements for the energy-saving level and comfort of existing buildings, and energy-saving renovation technology has been also constantly improving and progressing. ICESUN has proposed a convenient and economical energy-saving renovation measure, that is, replacing the original single-panel glass windows and insulating glass windows with vacuum glazing, which has significant energy-saving effect, improved comfort and extended life. With the development of economy and the improvement of people's living standards, people have higher requirements for the energy-saving level and comfort of existing buildings, and energy-saving renovation technology has been also constantly improving and progressing. ICESUN has proposed a convenient and economical energy-saving renovation measure, that is, replacing the original single-panel glass windows and insulating glass windows with vacuum glazing, which has significant energy-saving effect, improved comfort and extended life. Overview Green building has gradually become a well-known term. So what is green building? "Green building" refers to meeting GB/T 50378-2006 "Green Building Evaluation Standard", maximizing energy saving, land saving, water saving and material saving in the whole life cycle, protecting the environment and reducing pollution, providing people with healthy, Appropriate and efficient use of space, architecture in harmony with nature. There are about 500 existing buildings in my country, of which the green building area is less than 0.1%. In recent years, the state has vigorously promoted green buildings and has issued a series of policies. Regarding new buildings, by 2020, green buildings will account for more than 30% of new buildings. Regarding the renovation of existing buildings, taking the northern heating area as an example, during the "Twelfth Five-Year Plan" period, the existing residential buildings in the northern heating area will have more than 4 heating metering and energy-saving renovation. It can be seen that the task is arduous and arduous. As we all know, building energy consumption accounts for about 1/3 of the total social energy consumption, and the building protective structure is an important part of the building, and the building exterior window is an important part of the building envelope. Studies have shown that the area of external windows accounts for 25% to 35% of the area of the building envelope, and its energy loss accounts for about 50% of the energy loss of the entire building envelope. Therefore, improving the thermal insulation performance of the window, that is, reducing the heat transfer coefficient of the window, and selecting the shading coefficient of the window reasonably, are crucial for building energy conservation. Vacuum Glazing Technology Vacuum glass consists of two sheets of flat glass. The glass plates are separated by a series of brackets with a height of 0.2-0.4 mm. The two pieces of glass are sealed with glass solder around them. One of the pieces of glass has an air extraction hole for easy vacuuming. The two pieces of glass can be ordinary glass, or tempered glass or semi-tempered glass. To improve thermal performance, a piece of low-E film glass is usually used. Energy-saving Effect Analysis of Vacuum Glazing Windows The energy-saving effect of vacuum glazing windows in Harbin and Beijing areas is calculated by the cumulative evaluation method in winter and summer. The details are as follows: The relative heat gain of doors and windows comes from the heat conduction caused by the solar thermal radiation and temperature difference transmitted by the windows. In summer, the more relative heat gain, the more air-conditioning load is needed in the room; in winter, the less relative heat gain, the more heating load the room needs. Therefore, the relative heat gain (RHG, Relative Heat Gain) of doors and windows can represent the "Relative Heat Consumption" (RHC, Relative Heat Consumption). RHG=Σ(UApf (Tout –Tin )+(SHGC)Apf ET U: heat transfer coefficient of the whole window, W/(M2•K); SHGC: the solar radiation heat gain coefficient of the whole window, sum of solar radiation transmittance and indoor secondary heat transfer coefficient; Apf: acreage of the whole window; Tout: outdoor temperature; Tin: indoor temperature; ET: solar radiation intensity, kWh/m2 Calculations show that the energy saving of vacuum glazing has obvious advantages over other glazings. Due to the climatic characteristics of Beijing and Harbin, the thermal insulation advantage of vacuum glass can be brought into play, that is, the advantage of energy saving is reflected in heating in winter. With the reduction of the thermal insulation performance of glass windows, the energy-saving performance of vacuum glazing windows is becoming more and more obvious, that is to say, for the renovation of some old buildings, vacuum glazing has irreplaceable energy-saving advantages. Performance Advantages of Vacuum Glazing Low-E vacuum glazing replaces ordinary white glass and ordinary insulating glass, which greatly improves comfort, mainly in terms of sound insulation, heat insulation, anti-condensation and wind resistance, and at the same time, the life of the whole window is prolonged. Due to the existence of the vacuum layer, the sound insulation performance of vacuum glass is the best among all kinds of glass. The weighted sound insulation of glass is approximately 31 dB. The low frequency sound insulation performance of vacuum glass is very good, and it is very suitable for buildings facing streets, railways and airports. In order to achieve better sound insulation performance, vacuum glass can be further combined with insulating glass or laminated glass, and the composite can reach 42 dB. When it is used for the renovation of existing buildings, it is necessary to pay special attention to the selection of glass with good sound insulation performance, but also to choose better window profiles, especially to ensure good sealing, that is to say, the envelope structure system should be soundproofing. With vacuum layer, the gas heat transfer can be ignored. Besides, the high-performance Low-E glass is used to greatly suppress the radiation heat transfer and ensure that the heat transfer coefficient (U value) of the glass is as low as 0.4-0.6W/(m2·K) .

    2022 05/07

  • How Does Vacuum Glass Work?
    Vacuum glass has similar structure with a double glazed unit, except that vacuum glass has no gas in the cavity, it is vacuum.Vacuum glass is to seal the two pieces of tempered glass around, vacuumize the gap and seal the exhaust hole. The gap between the two pieces of tempered glass is 0.4mm. Generally, at least one of the two pieces of vacuum glass is low emissivity (low-e) glass, so the heat dissipation through conduction, convection and radiation of vacuum glass is minimized, and its working principle is the same as that of glass thermos. Creating a vacuum layer between two pieces tempered glass could be up to five times more effective when insulating a room than standard double glazing technology. Vacuum glass (or VG) can exceed triple glazing with less weight and bulk. For example, 12.4 mm thick tempered vacuum glass, thermal insulation performance and heat resistance performance may be up to 3 times as much as 32 mm thick German triple insulating glass. Working Principle of Vacuum Glass From a principle point of view, vacuum glass can be compared to a flat-shaped thermos bottle. The same point between the two is that the inter layer of the two layers of glass is a vacuum with a pressure lower than 10-1pa (10-4 pa for vacuum glass), so that the heat transfer of the gas can be ignored. Besides, the inner walls of both are plated with Low-E film to make radiative heat transfer as small as possible. The differences between the two are as follows: First, the vacuum glass used for doors and windows must be transparent or light-transmitting. It cannot be plated with opaque silver film like a thermos. Or the spherical thermos becomes a flat plate, and a square array of "supports" must be set up between the two layers of glass to withstand the atmospheric pressure of about 10 tons per square meter, so that the glass is kept spaced to form a vacuum layer. The spacing of the "support" square array is designed according to the thickness of the glass plate and mechanical parameters, and is between 20mm-40mm. In order to reduce the heat transfer formed by the "thermal bridge" of the support and make it difficult for the human eye to distinguish, the diameter of the support is very small (about 0.3mm-0.5mm). Further to this, vacuum glass provides much better performance in terms of sound proof or noise reduction. Due to the vacuum layer, it cannot conduct noise, so vacuum glass can isolate 90% of noise. Just as the famous film line says, [In space, no one can hear you scream!" The life expectancy of ICESUN tempered vacuum glass can reach more than 50 years. It has a high vacuum inner cavity, so that the gas heat transfer can be ignored. At the same time, high-performance Low-E glass is used to greatly suppress radiation heat transfer and ensure the heat transfer coefficient of ICESUN vacuum glass (U value) as low as 0.4W/(m2·K). At the same time, the thermal insulation performance of ICESUN vacuum glass is 2-4 times that of insulating glass, and 6-10 times that of single glass. It can meet the requirements of international passive house for heat transfer coefficient of doors and windows when used independently.

    2022 04/28

  • Vacuum Glass - Care for Your Health "Quietly"
    April 27, 2022 is the 27th International Noise Awareness Day. The aim of International Noise Awareness Day is to assist in promoting the awareness of the harmful effects of noise on hearing, health and quality of life, and inspiring positive action in the community. It does let more and more people know about this "invisible killer" through the publicity of noise pollution and other related knowledge. Noise 'Killing' is Not Alarmist According to a report published by the World Health Organization's "New Scientist" weekly, noise is an important cause of stress and many deaths. The report shows that 3% of people who die from heart disease or stroke in Europe are caused by traffic noise. Since 7 million people worldwide die of heart disease each year, using this percentage, it is possible that around 210,000 people die each year from noise-related diseases. Noise killing is actually closely related to the structural characteristics of our human body. Since different parts and systems in the human body have their own natural frequencies, when the vibration frequency of the human body is close to or equal to the natural frequency of a certain part, resonance will occur, resulting in damage to body tissues. If the vital organs resonate, the discomfort of the human body will be stronger, the reaction will be stronger, and the harm to us will be greater. The instrument test shows that the sound pressure level of traffic noise is mainly below 200Hz, which belongs to medium and low frequency noise. It is in the same frequency range as the natural frequencies of different parts and systems in the human body. Directly to the human ear bone, stimulates sympathetic nervousness, peripheral vasoconstriction, tachycardia, and elevated blood pressure. In addition, low-frequency noise has the characteristics of gradually slowing down noise, long transmission distance, strong diffraction ability, and low frequency, which is difficult for people to detect. Therefore, long-term People who work and live near highways or in urban areas with heavy traffic are easily affected by low-frequency noise and induce highly fatal diseases such as heart disease and stroke. In addition to killing people, noise is also one of the main culprits that lead to the sub-health state of human life. Data studies have shown that long-term exposure to high noise environments will cause permanent hearing threshold shift, which is noise-induced deafness; noise acts on the human central nervous system, causing headache, insomnia, neurasthenia and other intractable nervous system diseases. Noise-induced sleep disorders can cause depression, anxiety, and even suicide risk more than 1.4 times higher than that of the general population; for every decibel increase in urban noise, the incidence of hypertension increases by 3%; noise affects the development of fetuses and children. Children's intellectual development in noise environment is slow, 20% lower than normal. The Key to Indoor Noise Reduction is Glass Some domestic scholars have calculated that "more than 80% of modern people's life is spent indoors." Therefore, the comfort of the indoor environment has a profound impact on people's health and work efficiency. By analyzing the sources of indoor noise, it can be found that the noise mainly comes from the following ways: door and window noise, wall noise, floor noise, indoor pipe noise and electrical noise in some residential buildings. and mechanical noise from equipment. Statistics show that among these noise sources, 90% of the external noise enters the room through doors and windows, while glass occupies 70% of the area of doors and windows. Therefore, it is very important to improve the noise reduction ability of door and window glass, reduce indoor noise and improve the quality of life. ICESUN Vacuum Glass Care for Your Health "Quietly" Nowadays, the common door and window glass are: ordinary insulating glass, laminated glass and vacuum glass. In order to verify the actual sound insulation effect of these types of glass, we used tempered vacuum glass (a vacuum glass product developed by ICESUN) to conduct a comparative experiment, and the results are as follows: (The attached picture is the field test of 60 broken bridge aluminum windows + vacuum glass windows): The above measured data clearly show that the sound insulation of ordinary insulating glass is only 20.8dB, and the sound insulation of vacuum glass can reach 38dB, which is nearly twice that of ordinary insulating glass; even in the daytime, doors and windows equipped with vacuum glass can also reduce The indoor noise is reduced to 29dB, and the outdoor environmental noise is reduced by more than 50%, which meets the requirement that the nighttime noise in the bedroom is less than 30dB stipulated in the new version of the General Code for the Building Environment. The reason that vacuum glass has better sound insulation performance than ordinary glass lies in its unique structure and principle: since the sound transmission medium is mainly air, water, and solid, while vacuum glass is to seal two pieces of flat glass around, making the air drawn from the middle to form a vacuum layer, which cuts off the transmission path of noise and creates the characteristics of zero sound transmission. At the same time, the vacuum layer also cuts off the way of heat transmission and realizes zero heat transfer. Therefore, vacuum glass has become a new generation of super insulation material. With excellent performance such as heat, extremely quiet and ultra-low dew point, high-tech vacuum glass products are the ultimate products of energy-saving and quiet glass. Conclusion The survey shows that nearly 2/3 of the urban residents in the country live in an environment with excessive noise, and the noise in many urban living areas is higher than 60 decibels. In 2020, the "National Eco-environmental Petition Complaint Reporting Management Platform" accepted more than 441,000 reports from the public, of which noise disturbance accounted for 41.2% of the total number of reports. The harm of noise is evident! Technology changes life. Let's experience the life high-tech vacuum glass brings, find "quietness" and say goodbye to noise!

    2022 04/24

  • Chinese National Standard for Vacuum Glass GB/T 38586-2020 (Excerpt)
    This standard is proposed by China Building Materials Federation. This standard is under the jurisdiction of the National Standardization Technical Committee of Glass for Construction (SAC/TC 255). The drafting units of this standard include China Building Materials Inspection and Certification Group Co., Ltd., ICESUN Vacuum Glass Ltd., National Safety Glass and Quartz Glass Quality Supervision and Inspection Center and many other units. The main drafters of this standard: Huang Xiaolou, Zhang Congcong, Li Hongyan, etc. This standard specifies the requirements, test methods, inspection rules, packaging, marking, transportation and storage of vacuum glass. This standard applies to vacuum glass for construction and home appliances, and vacuum glass for other purposes can be used as a reference. Thermal insulation performance: The thermal insulation performance of vacuum glass should meet the requirements of the following table. Grade of thermal insulation performance of vacuum glass Grade Heat Transfer Coefficient W(m2*K) I ≤1.0 II 1.0<U value(K value)≤2.0 Sound insulation performance: The weighted sound insulation Rw of vacuum glass for construction shall not be less than 35dB, and the weighted sound insulation Rw of vacuum glass for other purposes shall be agreed upon by both parties. Structural Characteristics and Performance Features of Typical Vacuum Gass A typical vacuum glass is a glass product in which two pieces of flat glass are separated by a support, and the periphery is sealed (using low-melting glass solder or metal solder) to form a vacuum cavity between the glasses. The vacuum pressure in the vacuum chamber should not exceed 1Pa, and can generally be controlled at 0.1Pa-0.01Pa or lower. Due to the external atmospheric pressure, it is necessary to set up a "support" between the two layers of glass to maintain a gap between the glasses to form a vacuum layer. The arrangement form and spacing of the "supports" can be determined according to the thickness of the glass, the type, material, shape, size of the supports, and related stress and mechanical parameters. Usually, in order to reduce the heat transfer formed by the "thermal bridge" of the support and improve the visual effect at the same time, the diameter of the support is generally between 0.3mm - 0.5mm, the height is between 0.1mm - 0.4mm, and the spacing is generally 20mm - Between 60mm. There is very little gas in the vacuum glass cavity, and the convective heat transfer of the gas in the cavity is very small, so the heat transfer coefficient is low. In order to further improve the thermal insulation performance of the vacuum glass, at least one piece of low-emissivity coated glass can be used in the vacuum glass substrate, which will reduce the radiation heat transfer of the vacuum glass, thereby further reducing the heat transfer coefficient of the vacuum glass. Due to the existence of the vacuum cavity, the vacuum glass effectively blocks the transmission of sound, and the sound insulation effect is very good. At the same time, vacuum glass also has the characteristics of good anti-condensation effect, heat transfer coefficient not affected by placement angle, and long service life. Since the strength of tempered glass is higher than that of ordinary glass, vacuum glass made of tempered glass can improve the ability of vacuum pump glass to resist external atmospheric pressure to a certain extent. Compared with the vacuum glass made of ordinary glass, its mechanical properties (wind pressure resistance, temperature difference resistance, impact resistance, etc.) can also be improved. At the same time, the distance between the supports of the vacuum glass made of tempered glass can be appropriately expanded, which can further reduce the heat transfer coefficient of the vacuum glass, improve the thermal insulation performance, and at the same time the glass is more beautiful. Because vacuum glass has excellent thermal insulation, sound insulation, anti-condensation and other properties, vacuum glass and its composite products can be used in construction, household appliances and other fields. When vacuum glass and its products are used in these fields, all performance tests should be carried out in accordance with relevant laws and regulations, product standards and design specifications.

    2022 04/18

  • Elite from ICESUN - Selected into Expert Database of Ultra-low Energy Consumption Buildings
    After the Henan Province Passive Ultra-Low Energy Building Industry Technology Innovation Strategic Alliance issued the "Notice on the Recruitment of Experts in the Ultra-Low Energy Building Expert Database", a total of 126 people's registration information was received. According to the selection procedure of preliminary review, online voting and final review, this expert solicitation will evaluate the professional technical level, industry reputation and influence, practical experience, region, industry and other comprehensive factors of the candidate experts. A total of 47 experts were selected into the first batch of the expert database for ultra-low energy buildings. On March 9, 2022, the Henan Province Passive Ultra-low Energy Consumption Building Industry Technology Innovation Strategic Alliance announced the list of the first batch of experts selected for ultra-low energy consumption buildings, and Dr. Li Hongyan, the chairman of our company, was selected with a high vote. Li Hongyan is a well-known vacuum glass industry expert at home and abroad, and is the leading core of ICESUN vacuum glass industry. Under his leadership, the ICESUN team has transformed an unprecedented conceptual design into a commercial product for many years, and developed a single product into a new generation, high performance with three series of thermal insulation, mute, anti-dew and super-structured whole windows vacuum glass products. At present, ICESUN vacuum glass series products have been successfully tested and certified by SGCC, IGCC, IGMA and other domestic and foreign authoritative institutions, and obtained a number of intellectual property invention patent certificates of the People's Republic of China. ICESUN vacuum glass has also been widely used in many passive houses, ultra-low energy buildings, silent noise reduction projects, energy saving and dew protection of high-end refrigerators, such as: Zhengzhou Party Style and Clean Government Education Base, Xinxiang Yunsong Jinyu Huafu, Changchun Rui Enterprises and projects such as Deshangpin, Jiangsu Education Technology Building (renovation of old houses), Huai'an ultra-low energy consumption building park, and carbon neutral kindergarten of Chinese Academy of Sciences are all using ICESUN vacuum products in large quantities. At the same time, ICESUN vacuum glass series products are also exported to dozens of countries and regions such as Canada, the Netherlands, Germany, Australia, etc., becoming a microcosm of China's miracle in the field of global high-tech competition. Today, the development concept of green energy saving has become the general trend, and healthy and comfortable quality of life has also been deeply rooted in the hearts of the people. The establishment of this ultra-low energy consumption building expert database will definitely accelerate the implementation and flowering of these advanced concepts, and help the country to reach the peak of carbon and carbon emissions, making great contribution to the realization of the neutralization strategy!

    2022 04/15

  • Vacuum Glass - Better for Noise Reduction
    The best glass for sound insulation depends on the level of disturbance you experience. However, as a leading company who is dedicated into producing energy efficiency architecture glass with the best performance on sound insulation, ICESUN Vacuum Glass strongly recommends using sound proof vacuum glass instead of triple glazing. When considering window replacements, it's important for customers to understand the benefits of glass options, especially if they want to reduce the amount of noise entering home. What is Noise Pollution? Noise pollution is defined as disturbance or excessive noise that may impair the activity or balance of human or animal life. With the growth of the population and the development of modern technology, the frequency and sources of noise are increasing. Noise pollution can have very real effects on our minds and bodies. Research shows that noise pollution affects our health. They have shown that it causes stress and anxiety, and increases blood pressure, which can lead to high blood pressure and cardiovascular disease. How to Benefit from Soundproof Vacuum Glass? Reducing unnecessary noise is helpful for focus, improving sleep, and bringing more relaxation and less stress. This becomes very important for people who live near a busy road, rail line or airport, or for those who prefer much more peace and quiet. The windows will be an important part of the noise pollution solution in home. Glass conducts sound very well. A single piece of glass or untreated glass will do little to keep noise out of home. If home still have only single pane windows and homeowners want to reduce noise pollution, it may be time to upgrade the windows with sound proof vacuum glass. How to Reduce Noise Through Glass Windows Sound proof glass works by deflecting and dissipating sound waves. This is achieved in three ways: ◈ Thickness The thicker the glass, the better the noise reduction performance. However, glass has a natural coincidence frequency (it amplifies the pitch of the sound), which is why double glazing is a better choice, with two different thicknesses of glass. Different thicknesses alter the sound waves as they pass through the unit to cancel out the coincident frequencies. ◈ Spacing The larger the gap between the glass sheets, the better the acoustic performance of the soundproof glass. But we know your space is at a premium, and thick windows aren't practical. Noise can be reduced by filling the gaps between the glass sheets with argon and krypton gas, or by creating a vacuum between the glass sheets. ◈ Laminated Laminated glass has a thin layer of polyvinyl butyral (PVB) sandwiched between two pieces of glass to form the outer panel. PVB provides excellent acoustic performance by suppressing sound waves. It also makes it more difficult to crack. PVB prevents glass from shattering, and the window remains one piece, so it also increases safety. ◈ Vacuum The two pieces of glass are glued together with a special sealing sheet, and then evacuated to form a vacuum glass. There is no sound transmission in a vacuum environment, this vacuum glass has unparalleled sound insulation. Vacuum glass was originally invented to improve the thermal insulation properties of glass. Unexpectedly, the sound insulation effect is also 11dB higher than that of ordinary insulating glass. So if you need to replace energy efficient windows in your home, vacuum glass is a good choice. You'll notice a noticeable difference in soundproof glass, especially if it means you can enjoy a good night's rest. Which Glass is Best for Noise Reduction? Compared to standard triple glazing, soundproof vacuum glass units are best for noise reduction. We would say try to stay away from triple glazing and opt for higher specification vacuum glass for reliable and long-term performance. One of the main reasons we recommend against triple glazing as the best glass for noise reduction is that the extra weight puts more stress on door and window hinges. This may result in a shortened product life. If you are looking for soundproof glass and noise reduction glass, we can provide you with vacuum soundproofing. We are happy to discuss your requirements and propose a solution that suits you. If you are interested in noise reduction glass, please consider our low-e vacuum composite insulating glass products. Compared to traditional double glazing, ICESUN can provide 20% better noise reduction. They also have many additional benefits, such as the excellent thermal and thermal insulation properties. ICESUN is a vacuum glass company focusing on passive houses and zero-carbon buildings. Welcome to discuss cooperation.

    2022 04/11

  • Vacuum Glass - the First Choice of Energy-efficiency Architecture Glass
    With the implementation of national energy-saving regulations and green building policies, vacuum glass has become the preferred architecture glass for energy-saving doors and windows in green buildings such as passive houses, low-energy buildings and zero energy buildings. What is Vacuum Glass? As a new type of glass deep processing product, vacuum glass is developed based on the principle of thermos bottle. Vacuum glass is to seal the periphery of two flat glasses, draw vacuum from the gap and seal the exhaust hole. ICESUN vacuum glass currently on the market is made of 4mm high support to separate the two glasses, seal the edges of the two glass plates with low-temperature glass, and then discharge the air. Generally, at least one of the two pieces of vacuum glass adopts Low-E layer, so as to minimize the heat lost through the conduction, convection and radiation of vacuum glass. The working principle of vacuum glass is the same as that of glass thermos. Vacuum glass forms a vacuum layer between two glass substrates. Because the conduction and convection of heat energy cannot be carried out in vacuum, vacuum glass can more effectively isolate the transmission of heat energy and has good thermal insulation performance. Therefore, whether in summer or winter, vacuum glass can make the indoor temperature less vulnerable to the outdoor temperature. When buildings in various countries are developing towards zero carbon buildings, Vacuum glass has become the preferred energy-saving building materials. How to Make Tempered Vacuum Glass Wash the two tempered glass plates;Metal supports with a height of 0.4mm should be placed on a glass plate at an interval of 10 ~ 25mm; Put on another glass plate; Apply welding glass around the two glass plates; Heat at 450 ℃ for 15 ~ 60 minutes, and seal the edges of the two glass plates with welded glass to form a whole; Open a hole at an appropriate position and vacuum to make the vacuum pressure between the two glass plates reach 10-4, that is, vacuum glass is formed. Generally speaking, the whole production and preparation process of vacuum glass involves nearly 100 production links, which requires strict production environment and high process accuracy. If not combined with advanced automation technology, the production efficiency will be too low, which will directly affect the performance and stability of vacuum glass and lose the commercial application value of products. Why is Vacuum Glass Energy Efficient? Energy-saving glass usually refers to glass with good thermal insulation and shading properties. The application of this type of glass can greatly reduce the power consumption of residential and office buildings, and save the use of air conditioning and heating. In winter, the escape of indoor heat can be greatly reduced, and in summer, sunlight can be reduced to enter the room. Energy-saving glass, as an important building energy-saving material, has been playing an increasingly important role in promoting building energy-saving in China. Vacuum glass is the glass with the best energy saving effect at present. Vacuum glass forms a vacuum between two sealed glass pieces so that the conduction heat between glass and glass is close to zero. At the same time, at least one piece of vacuum glass is generally Low -E low-e glass, so that its convection, radiation and conduction heat transfer are very small, and the energy saving effect is very good. Heat loss through windows can be reduced by using vacuum glass. These special windows have vacuum layer between two panes of glass. If the vacuum glass has a vacuum, there will be no conduction or convection, so there will be no heat loss by conduction.

    2022 04/07

  • The 14th Five-Year Plan for Building Energy Efficiency and Green Building Development was Released
    Recently, the Ministry of Housing and Urban-Rural Development issued the "14th Five-Year Plan for Building Energy Conservation and Green Building Development", which clearly states that by 2025, all new urban buildings will be fully constructed as green buildings, the building energy utilization efficiency will be steadily improved, and the building energy consumption structure will be gradually optimized. As a leader in energy-saving glass, the era of vacuum glass has come. The growth trend of building energy consumption and carbon emissions has been effectively controlled, and a green, low-carbon, and circular construction and development mode has been basically formed, laying a solid foundation for the urban and rural construction field to reach the peak of carbon before 2030. The wide applications of vacuum glass are totally helpful for low carbon future. The plan proposes that, by 2025, the area of energy-saving renovation of existing buildings will be more than 350 million square meters, and the construction of ultra-low energy and near-zero energy consumption buildings will exceed 50 million square meters. The proportion of prefabricated buildings in urban new buildings will reach 30%. The installed capacity of solar photovoltaics in new buildings nationwide is more than 50 million kilowatts, the application area of geothermal energy buildings is more than 100 million square meters, the replacement rate of renewable energy in urban buildings reaches 8%, and the proportion of electricity consumption in building energy consumption exceeds 55%. The plan also clarifies 9 key tasks of building energy conservation and green building development during the "14th Five-Year Plan" period - improving the quality of green building development, improving the energy conservation level of new buildings, strengthening energy conservation and green renovation of existing buildings, promoting the application of renewable energy, and implementing buildings. Electrification engineering, promotion of new green construction methods, promotion and application of green building materials, promotion of regional building energy coordination, and promotion of green city construction. Key Tasks in Building Energy Efficiency and Green Building Development ◈ In terms of improving the quality of green building development, it is necessary to strengthen the construction of high-quality green buildings and improve the operation and management system of green buildings. Carry out green building creation actions. By 2025, new urban buildings will fully implement green building standards, and a number of high-quality green building projects will be built, and the people's sense of experience and gain will be significantly enhanced. At the same time, a star-rated green building promotion plan was launched. Adopt the "mandatory + voluntary" promotion model, and appropriately increase the proportion of star-rated green buildings in government-invested public buildings, large public buildings and new buildings in key functional areas. Guide local governments to formulate policies such as green finance, plot ratio awards, and priority awards, and support the development of star-rated green buildings. ◈ In improving the energy-saving level of new buildings, focus on promoting the promotion of ultra-low energy consumption buildings. By 2025, the construction of demonstration projects of ultra-low energy consumption and near zero energy consumption buildings will exceed 50 million square meters. At the same time, carry out the promotion project of high-performance doors and windows. According to the current situation of door and window technology in my country and the development direction of technology, the goal of improving energy-saving performance of doors and windows in different climate regions is proposed to promote the application of high-performance doors and windows. Shading facilities should be added according to local conditions to improve the safety, applicability and durability of shading facilities. ◈ In strengthening the energy-saving and green transformation of existing buildings, it is necessary to carry out energy-saving transformation of existing residential buildings. Strive to complete the energy-saving renovation of existing residential buildings nationwide by 2025, with an area of more than 100 million square meters. At the same time, promote the construction of key cities to improve the energy efficiency of public buildings. During the "14th Five-Year Plan" period, more than 250 million square meters of energy-saving renovation of existing public buildings have been completed. ◈ In promoting the application of renewable energy, building photovoltaic actions should be carried out. During the "14th Five-Year Plan" period, the cumulative installed capacity of solar photovoltaic in buildings will be 50 million kilowatts, and the policy system, standard system and technical system of solar photovoltaic building application will be gradually improved. ◈ In the implementation of building electrification projects, it is necessary to carry out alternative actions for building energy and electricity. By 2025, the proportion of electricity consumption in building energy consumption will exceed 55%. At the same time, promote the construction of new building power system. During the "14th Five-Year Plan" period, we will actively carry out pilot projects for the construction of new building power systems, and gradually improve relevant policies, technologies, standards and industrial ecology. ◈ In terms of promoting new green construction methods, it is necessary to establish a "1+3" standardized design and production system, focusing on how to use standardized components for integrated design, guide production units to carry out standardized mass production, gradually reduce production costs, and promote the industrialization of new buildings. continuous development. ◈ In terms of promoting the promotion and application of green building materials, it is necessary to increase investment in research and development of green building materials products and key technologies, encourage the development of prefabricated components and components with excellent performance, significantly increase the application ratio of green building materials in new urban buildings, and promote new functional environmental protection building materials products and supporting materials Application Technology. ◈ In terms of promoting regional building energy coordination, it is necessary to target various parks and public buildings such as new urban areas, functional parks, campus parks, etc., to promote the pilot construction of regional building virtual power plants, improve building electricity efficiency, and reduce electricity costs. ◈ In promoting the construction of green cities, it is necessary to carry out the construction of green and low-carbon cities and establish a benchmark for green and low-carbon development of buildings. Combined with building energy conservation and green building work, formulate a green and low-carbon city construction implementation plan and a green building special plan, clarify the green and low-carbon city development goals and main tasks, and determine the green building grade and layout requirements for new civil buildings. Promote the construction of green and low-carbon urban areas, realize the large-scale development of high-star green buildings, and promote ultra-low energy consumption buildings, zero-carbon buildings, energy conservation and green transformation of existing buildings, renewable energy building applications, prefabricated buildings, and regional building energy efficiency Improvement and other projects will be implemented to comprehensively improve the level of building energy conservation and green building development.

    2022 03/28

  • Announcement of "General Specification for Building Energy Conservation and Renewable Energy Utilization"
    Announcement of the Ministry of Housing and Urban-Rural Development on Issuing the National Standard "General Specification for Building Energy Conservation and Renewable Energy Utilization" shows that China will enforce the full text of the General Specification for Building Energy Conservation and Renewable Energy Utilization from April 1, 2022, covering new buildings, existing buildings, and renewable energy systems. The specification will open a new era of comprehensive application of building energy-efficient glass. The green buildings materials like energy-saving glass - ICESUN vacuum glass will usher in the spring of rapid development! The "General Specification for Building Energy Conservation and Renewable Energy Utilization" is now approved as a national standard, numbered GB 55015-2021, and will be implemented from April 1, 2022. This specification is a mandatory engineering construction specification, and all provisions must be strictly implemented. The relevant mandatory provisions of the current engineering construction standards shall be repealed at the same time. If the relevant provisions in the current engineering construction standards are inconsistent with this code, the provisions of this code shall prevail. The Points of Specification 1. The full text is mandatory and must be strictly implemented. 2. The general specifications for building energy conservation and renewable energy cover a wide range, involving new buildings, existing buildings, renewable energy systems, construction commissioning acceptance and operation management. 3. Calculation of building carbon emissions is mandatory. 4. Refinement of renewable energy utilization requirements. 5. The energy-saving design level of new buildings was further improved. The "General Specification" raises the requirements for thermal performance limits of residential buildings and public buildings. Different from the current energy-saving standards in most regions, the average design energy consumption level is reduced by 30% and 20% respectively on the basis of the current national and industrial standards for energy-saving design. The average energy saving rate of residential buildings in severe cold and cold areas should be 75%; The average energy saving rate of residential buildings in other climate zones should be 65%; The average energy efficiency of public buildings should be 72%. 6. Newly added requirements for energy-saving design indicators for industrial buildings in moderate regions. Compared with the "Uniform Standard for Energy Efficiency Design of Industrial Buildings" GB 51245-2017, the "General Specifications" newly added energy-saving design indicators for industrial buildings with heating and air-conditioning systems set up in the mild A zone, expanding the scope of application of the industrial standard, and strictly enforced by industrial buildings in mild areas. 7. The efficiency and lighting requirements of the HVAC system have been comprehensively improved. Significance and formulation context The "General Specification for Building Energy Conservation and Renewable Energy Utilization" is launched to implement the national laws and regulations on energy conservation, ecological environment protection, and response to climate change, implement carbon peaking, carbon neutrality decision-making and deployment, and improve energy resource utilization efficiency , promote the utilization of renewable energy, reduce building carbon emissions, create a good building indoor environment, and meet the needs of high-quality economic and social development. The "Energy Conservation Code" implements the spirit of reforming and improving the engineering construction standard system, and plays an important role in improving the quality of buildings and promoting the high-quality and green development of the construction industry. It highlights the nature of technical regulations, and clarifies the mandatory indicators and basic requirements for design, construction, commissioning, acceptance, and operation management from three aspects: energy-saving design of new buildings, energy-saving of existing buildings, and utilization of renewable energy. The content structure, element composition, main technical indicators, etc. are in line with the relevant technical regulations and standards of developed countries, and generally reach the international advanced level. Scope of application It can be seen from the general provisions that the scope of application of this code is "design, construction, acceptance and operation management of building energy-saving and renewable energy building application systems for new, expanded and renovated buildings and existing building energy-saving renovation projects", involving new buildings. , Existing buildings, renewable energy systems, construction commissioning acceptance and operation management and other aspects. Carbon Emission Intensity 2.0.1: The average design energy consumption level of new residential buildings and public buildings will be further reduced by 30% and 20% based on the energy-saving design standards implemented in 2016. Among them, the average energy-saving rate of residential buildings in severe and cold regions should be 75%, the average energy-saving rate of other climate regions should be 65%, and the average energy-saving rate of public buildings should be 72%. It can be expected that after the implementation on April 1, 2022, the building envelope industry (windows, doors, insulation materials industry) and other industries in the field of building energy conservation will benefit and usher in a new wave of growth. 2.0.3: There are clear and mandatory standards for carbon emission intensity. In the past, building-related carbon emission standards were mostly recommendations or suggestions, such as GBT50378-2019 "Green Building Evaluation Standards", and GB/T51141-2015 "Evaluation Standards for Green Retrofit of Existing Buildings" and its 2020 draft for comments, There is no mandatory requirement for carbon intensity. 2.0.5: Building energy-saving design shall be carried out for newly-built, expanded and renovated buildings, as well as energy-saving renovation of existing buildings. The feasibility study report, construction plan and preliminary design document of the construction project shall include the analysis report of building energy consumption, renewable energy utilization and building carbon emission.

    2022 03/22

  • How Does Vacuum Glazing Reduce Energy Loss?
    Before the 1930s there was only single glazing, but by the 1950s it was quite popular in the United States to have double glazing. In 2013 over 80% of homes in the UK are now at least partially double glazed. Some even have triple glazing. For now, as energy problem become more important and nations require further intensify energy-saving work, vacuum glazing has come onto the historical stage gradually in virtue of its premium performance on heat insulation, sound insulation, wind resistance and long life. But why? Why would people need vacuum glazing? Pure and simple-People want to save energy, and regulate the temperature in home. Vacuum glazing (VG) is an innovative architectural glass that combines vacuum technology with exceptional insulation performance, even rivaling that of traditional walls. That is to say, vacuum layer between glasses is able to enhance the insulation performance of glass configuration with unparalleled R-values close to those of a traditional wall. So how does vacuum glazing reduce energy loss? Vacuum glass consists of two pane of 6mm tempered glass separated by a 0.4mm vacuum layer. The unit`s slim construction and light weight allows it to be incorporated into virtually any traditional glazing system, window frame or curtain wall application. Vacuum glazing enhances the performance of any glass configuration by effectively blocking thermal transmission, delivering thermal insulation performance that is 2-4 times better than conventional insulating glass and 6-10 times better than monolithic glass. Our tempered vacuum glass is separated by a 0.2mm high support, and the edges of the two glass panes are sealed with low temperature glass, and then the air in it is exhausted. The vacuum degree between the glass is 10-4Pa, so the heat convection does not exist, the heat conduction is reduced to the limit, and the LOW-E layer reflects more than 95% of the infrared radiation, so the heat between the inner and outer glass plates cannot be exchanged, achieving the excellent thermal insulation effect. Energy saving isn`t the only reason to install vacuum glazing – there are other benefits: ◈Most vacuum glazing is fitted in windows frames – no more painting! ◈Sound proof - the vacuum layer of vacuum glazing reduces the noise coming into the room. Noise reduction can be up to 38dBs-42dBs. Soundproofing is becoming ever more important in modern buildings. As many people live in inner cities or near busy roads, it is important to make sure that people are exposed to as little environmental noise as possible. ◈Vacuum glazing is anti-condensation(no condensation when the temperature difference between indoor and outdoor is more than 70). And the ultra-low dew point gives the building doors and windows a transparent visual effect. ◈Strong wind resistance - Tempered vacuum glass is an ultra-thin material formed by connecting two pieces of tempered glass and titanium alloy under atmospheric pressure. It has high resistance to deformation under the action of external force. Our industrial tempered vacuum glass technology has improved its wind pressure resistance and strength, withstanding grade 9 wind pressure.

    2022 03/18

  • Launch Ceremony of China International Glass Year Will be Held in April
    At the press conference for the first quarter of 2022 held by the China Association for Science and Technology on February 17, Jin Zhanping, vice chairman of the China Silicate Society, said that the launching ceremony of the International Year of Glass in China will be held in Beijing on April 8. At that time, representatives from relevant ministries and commissions, China Association for Science and Technology, glass industry organizations, scientific and technological circles and business circles will be invited to participate, and the publicity slogan and annual activity plan of the International Year of Glass in China will be announced at the ceremony. According to reports, the 2022 International Year of Glass initiative was officially approved by the 66th plenary session of the 75th United Nations General Assembly on May 18, 2021, and 2022 will become the United Nations International Year of Glass. This is the first time that the United Nations has named a year with a single material, highlighting the indispensable and important role of glass in many fields such as technology, economy, environment, culture and society, as well as its role in meeting the challenges and building a sustainable society. Inclusive society, achieving global economic recovery, promoting the development of emerging technologies and many other contributions. As a basic material with a long history, glass has officially entered the center of the world stage. From the 10th to the 11th of February, the opening ceremony of the 2022 United Nations International Year of Glass and the Glass Innovation and Development Forum will be held at the Palais des Nations in Geneva, the European headquarters of the United Nations, marking the official opening of the 2022 United Nations International Year of Glass global series of activities. With the theme of "Celebrating the past, present and future of glass to create a sustainable, fair and better tomorrow", the 2022 United Nations International Year of Glass will organize technology summits, seminars, industry exhibitions, glass art exhibitions, etc. Various activities covering the world in the exhibition focus on promoting the technological and cultural achievements formed by the material characteristics and ultimate functions of glass. Important international events that have been announced to the world include: the 32nd China International Glass Industry Technology Exhibition hosted by the China Silicate Society, the "National Glass Day" event in the United States, the theme event "From Pharaoh to High-Tech Glass" in Egypt, The 26th International Glass Congress held in Berlin, Germany and the closing ceremony of the International Year of Glass in Japan, etc. Jin Zhanping said that as one of the important national members of the International Glass Association, the China Silicate Society has continued to recommend Chinese scientists to the International Glass Association and held important positions for many years, which has played an important role in promoting the voice of Chinese glass in the international glass field. With the support of the China Association for Science and Technology, the China Silicate Society will actively respond to the resolution of the United Nations International Year of Glass, serve the multilateral governance system with the United Nations as the core, and will hold the 32nd China International Glass Industry Technology Exhibition, academic forums, and glass to create a better life science popularization Activities, walk into the glass museum, glass winter camp and other series of activities. Source: https://www.gmw.cn/

    2022 03/15

  • Why is Vacuum Glass Price Higher than Insulating Glass?
    Customers may be curious about why the price of vacuum glass is higher than that of insulating glass. Following this article, you will find the reasons. ✦Vacuum glass has excellent thermal insulation performance, using it as window glass can quickly warm the room in winter, and the indoor heating is not easy to dissipate. In summer, the indoor air conditioner makes it difficult for the air-conditioning to escape. ✦Due to its good thermal insulation performance, vacuum glass does not reduce the surface temperature of indoor window glass in winter, and the cold feeling between the window and the sole of the foot due to the "surface wind" is alleviated. Warm in winter and cool in summer, vacuum glass makes room warm and comfortable. ✦Vacuum glass is used as exterior window glass, with its extraordinary sound insulation performance, it prevents noise interference and realizes a quiet environment. The sound insulation performance (>35dB, up to 45dB) can fully meet the requirements of Shanghai "Notice on the use of sound insulation windows for new buildings within 50 meters on both sides of the road", and is suitable for existing and planned expressways and main road red lines. Newly built residential buildings, schools, hospitals and other buildings within 50 meters from the side of the street should be installed on the exterior windows of the buildings along the street. It is difficult for ordinary glass (single-piece glass (<18dB) and insulating glass (<25dB) to achieve good noise reduction effect. The thermal insulation performance of vacuum glass is based on the principle of vacuum thermos. The thermal insulation effect of ICESUN vacuum glass products exceeds that of a 1meter thick brick wall, which is 4~6 times that of ordinary insulating glass, and the U value (also called heat transfer coefficient or K value) is as low as 0.4-0.6W/m2·K. The sound insulation and noise reduction performance of vacuum glass is based on the fact that sound does not travel under vacuum conditions. The weighted sound insulation of ICESUN vacuum glass reaches 38dB-42dB, and the weighted sound insulation of general insulating glass is about 28dB. With ICESUN vacuum glass, the interior is as quiet as a library, even at airports, viaducts or main roads. Note: The higher the weighted sound insulation, the better the sound insulation effect. For example, the outdoor noise is 75 decibels, after using ICESUN vacuum glass, the indoor sound is 36 decibels (75-39=36), and the library is generally below 40 decibels.

    2022 03/14

  • Analysis of Vacuum Glass Application in Sun Room
    At present, with the continuous in-depth research of energy saving and environmental protection technology, vacuum glass products have a certain development history and application cases at home and abroad. The application of tempered vacuum glass to the construction of the sun room can not only save energy and protect the environment, but also ensure the stability, safety and comfort of the sun room. This article analyzes the application of tempered vacuum glass in the sun room, and the content is for your reference. With the improvement of living standards, more and more people are pursuing a higher-quality life. In many cities, sun rooms are widely welcomed by the public because they can provide a sense of intimacy close to the outdoor space and a sense of high-grade transparency. From the perspective of energy saving, the sun room increases the use of solar energy and natural light in the building itself. Although it can provide a comfortable space at certain times, if ignoring the factors such as glass energy saving, glass strength and safety, there may be many negative impacts. Advantages of Tempered Vacuum Glass in Buildings ✦Low carbon energy saving: With the high vacuum inner cavity, the gas heat transfer between glasses can be ignored. At the same time, tempered vacuum glass adopts high-performance Low-E glass, which greatly suppresses the radiation heat transfer and ensures that the heat transfer coefficient (U value) of the glass is as low as 0.4-0.6W/(m2·K). At the same time, the independent use of tempered vacuum glass can meet the requirements of the international passive house for the heat transfer coefficient of doors and windows. ✦Thermal insulation: Selecting vacuum glass with appropriate shading coefficient can effectively control the heat absorbed by sunlight in summer and keep the room cool; while it can keep the room warm and comfortable in winter. ✦Sound proof and noise reduction: The vacuum layer of vacuum glass can effectively block the transmission of sound, especially for medium and low frequencies with strong penetration, such as traffic noise and construction noise, the effect is very significant. According to the professional weighted sound insulation ratio, the sound insulation of tempered vacuum glass can make indoor low to 39 dB when outdoor noise is 75 dB. ✦Anti condensation: The interior of the vacuum glass is a vacuum, and there is no condensation in the cavity. Tempered vacuum glass has super thermal insulation performance. Even if the outdoor temperature drops to -40°C, the temperature of the indoor glass surface is similar to room temperature and much higher than the condensation temperature. ✦Suitable for different altitudes and installation angles: The interior of the vacuum glass is in a vacuum state, which is not affected by the ambient air pressure, and is suitable for various altitudes; at the same time, the vacuum glass can maintain its performance in various positions of the building, including facades, slopes and roofs. When the insulating glass is laid flat, the gas convection increases and the performance decreases. ✦Independent use can reach safety glass standard: Tempered vacuum glass retains the safety features such as high strength and impact resistance of tempered glass. And the surface stress distribution of tempered vacuum glass is uniform, which fully meets the stress requirements of tempered glass. It can meet the standards of safety glass without laminating or hollowing, and can be installed and used independently. ✦Light and thin structure with good light transmission: Under the premise of the same thermal insulation performance and safety performance, the thickness of the tempered vacuum glass used independently is the smallest, the required number of glass is less, the whole is more transparent, and has excellent lighting effect. Features of Traditional Glass Sun Room As we all know that the heat through the glass is bidirectional, the heat can be transferred from the indoor to the outdoor, and vice versa, and it is carried out at the same time, it is only a problem of poor heat transfer. In winter, the indoor temperature is higher than the outdoor, and the glass is required to have good thermal insulation performance; in summer, the indoor temperature is lower than the outdoor temperature, and the glass is required to have good thermal insulation performance. At the same time, in winter, the temperature on the outside of the glass is low and the temperature on the inside is high, which is prone to condensation on the inside of the glass, and even dripping of condensed water. If the problem of condensation on the glass of the sun room cannot be solved perfectly, its high-quality and comfortable experience will be impossible. The Best Choice for Sun Room Vacuum glass is a better energy-saving daylight material. The use of vacuum glass in the sun room can not only meet the lighting needs of people, but also have excellent effects such as heat insulation and dew condensation. In contrast, using a piece of insulating glass placed horizontally or obliquely in the sun room, the U value will vary due to the different inclination angles of the installation. For example, if a piece of argon-filled 6mm+12mm+6mm coated insulating glass is placed flat from a vertical state, its U value will increase from 1.45W/m2·K to 2.14W/m2·K, which seriously affects its thermal insulation performance. The installation of vacuum glass is not affected by various conditions, and its heat transfer coefficient is constant. In addition, the safety of the lighting glass on the top of the sun room is an important part of the architectural design of the sun room. In addition to the impact of wind pressure and hail resistance, the daylight roof glass of the sun room should also consider the impact of harsh environmental factors such as heavy snow and vibration. Therefore, the sun room lighting roof glass is generally tempered glass, including single-layer tempered glass, hollow tempered glass, laminated tempered glass, tempered vacuum glass and various forms of composite tempered glass. The sun room is not only a resting place to relax, but also can be used as a reception area or a fitness place to increase the fun of life. Using tempered vacuum glass and its window frame structure, a sun room is designed, which is simple and casual. It is a good time to enjoy the sun bathing here in your spare time, and to sit on a leisure chair and enjoy a cup of tea. At present, tempered vacuum glass, as a new favorite of architectural glass, is quietly popularizing in the construction industry. Tempered vacuum glass is favored by consumers because of its lightness, thinness, transparency, thermal insulation, and high safety performance. In a word, tempered vacuum glass is the leader among the same type of energy-saving glass products in the current market. With its safety features such as impact resistance and wind pressure resistance, as well as the thermal insulation, sound insulation, and condensation-free properties of vacuum glass, it can be used in sunlight. The application in the room provides human beings with a safe and comfortable environment close to nature.

    2022 03/10

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