Development and trend of curtain wall glass
since the 1980s, with the development of China's economy, building curtain walls have gradually risen and developed rapidly in China. After 20 years of continuous exploration and development, China has become the largest user and manufacturer of building curtain walls. As one of the main materials of building curtain walls, curtain wall glass directly restricts the performance of curtain walls, and is also the main embodiment of the artistic style of building curtain walls. Therefore, the selection of glass is an important part of curtain wall design. If the glass is improperly selected, it will have serious consequences
China's curtain wall construction high-grade glass production began from CSG. In 1987, CSG took the lead in introducing the vertical coated glass production line of Glauber in Belgium, opening a new era in the production of high-end architectural glass in China. In 1990, China's leading horizontal vacuum cathode magnetron sputtering coated glass production line was put into operation in CSG, creating a precedent for horizontal production of offline coated glass in China. In the summer of 1997, CSG took the lead in launching energy-saving Low-E glass (single-layer silver, 5-layer coating structure) in China. At the beginning of 2003, CSG took the lead in launching the double silver Low-E coated glass (double silver plated, 9-layer coated structure) with better decoration and energy saving effect in China. CSG is also the only enterprise in China that produces double silver Low-E coated glass on a large scale. (the development history of glass deep processing of the whole CSG group is a microcosm of the development of coated glass in China.
since the beginning of the 21st century, energy and environmental issues have become two major problems that restrict the harmonious development of society. In order to make rational use of China's limited resources and achieve sustainable development, the Ministry of construction subsequently promulgated and enforced the "design standard for energy efficiency of public buildings" on July 1, 2005 Requirements: by 2010, the total energy consumption of urban buildings across the country should reach 50% energy saving. A published article reported the lumbar artificial intervertebral disc requirements. By 2020, the total energy consumption of buildings in the whole society should achieve the goal of 65% energy saving. The formulation of this standard came into being under the development trend that the energy-saving problem is gradually recognized by the society and the market. Before the promulgation of the national energy efficiency design standard for public buildings, many advanced provinces and cities have formulated corresponding building energy efficiency design standards to ensure energy conservation in the region and promote sustainable and benign social development
with the maturity of consumers, consumers have more choices for building curtain walls, thus increasing the total number of axes to five rational analysis and reasonable consideration of cost performance. The choice of market products is also getting higher and higher. The requirements for building curtain wall glass are no longer simple external decoration effect and meeting the basic living and use requirements, but higher requirements for the comfort of the use environment and the operating cost of buildings in use. Therefore, Low-E glass (hereinafter referred to as low radiation coated glass) with excellent energy-saving and decorative effects has become the preferred product of high-end construction projects since CSG was first introduced to the market in 1997. Especially since 2003, the processing and selection of Low-E composite glass products have become more and more extensive
the functional requirements of modern buildings for glass can be summed up in energy conservation, decoration and comfort. The glass design that pursues large-area daylighting has become a trend, but this is in contradiction with the energy-saving trend of architectural design. Low-E hollow coated glass has super energy-saving effect, good exterior decoration performance, soft and diverse colors, elegance and nobility, which well meets the requirements of building energy conservation, decoration, comfort and so on. Low-E glass (hereinafter referred to as low radiation coated glass) is the best energy-saving and transparent material for daylight windows in the world at present. By reducing the U value of the glass, the far-infrared thermal radiation is limited to pass through the glass, so as to achieve the purpose of reducing the convection conduction heat energy to pass through the glass. At the same time, the sunshade coefficient SC of Low-E glass has a large adjustment range, which can effectively control the direct solar radiation entering the room. Its advantage is that the sunlight transmittance needs to be compensated by other skills. In summer, it can effectively prevent the transmission of solar far-infrared heat into the room, reduce the cost of air conditioning, and in winter, it can effectively prevent the loss of indoor far-infrared heat, save heating costs, one-time investment, long-term use, long-term benefit, and the overall economic situation is excellent. Low radiation coated energy-saving glass is suitable for any climatic region in China. Its heat insulation and heat preservation effect is remarkable, and it has excellent energy-saving characteristics, which can save 65%-74% energy. It fully meets the energy-saving requirements of national policies and regulations for new buildings, and creates the real combination of beauty and comfort of the building
enterprises with different inputs and processing capabilities add a considerable amount of fierce competition to China's glass deep processing industry, and also promote the rapid reshuffle of the whole industry. In order to become bigger and stronger, the glass deep processing industry must have strong capital support, scientific research team, sales team, stable processing environment and good service network, and have more competitive products. Only in this way can we really occupy the market and win the trust of the market. Due to the imbalance of China's economic development and the multi-level consumption concept, the competition will be more intense in a short time. In the competitive environment of big fish eating small fish, many poorly managed enterprises will be eliminated. The glass deep processing industry will transition to a centralized, efficient and high-tech deep processing industrial chain. At that time, large and powerful enterprises will become bigger and stronger, and occupy the market on a large scale. Competitors in the market will be concentrated among 3 to 4 producers, and small enterprises will be eliminated by the market. Therefore, different glass choices will lay a big hidden danger for the glass selector's future glass broken patch, which will directly affect the user's future glass patch difficulty and glass replacement cost, and cause the color difference of curtain wall glass
curtain wall glass with the development of building curtain walls in China, it has experienced a development experience of keeping pace with the times, such as single piece float glass ----- heat reflection coated glass (single piece, hollow) ----- single silver low radiation Low-E coated hollow glass ----- double silver low radiation Low-E coated hollow glass ----- Low-E low radiation coated hollow products for residential use in large areas ----- photoconductive glass