The doors and windows is one of the important building envelope, a shelter, heat insulation, ventilation and lighting and other aspects of the function, plays an important role in people's life and work environment. Aluminum alloy doors and windows with good performance, light weight, beautiful, good lighting, durable, easy to recycle and reuse of profiles, no environmental pollution and other characteristics of people's favorite. But the characteristics of poor thermal insulation performance of the aluminum doors and windows are affected by the use of performance.Therefore, to improve the thermal insulation and energy saving properties of aluminum alloy doors and windows in the future focus on the technical issues to be resolved. Improved structure, diversified system design to improve the performance of existing windows and doors and grades, must improve the structure design, changed the structure of the past only the pursuit of labor and material saving, low price and low level, realizing the push-pull window transition to better performance of casement window, to achieve single and double layer and three small open fixed and diversified system design.
Key development areas of raw materials
The frame material general requirements should be good strength, good heat insulation performance, easily made into various shapes, but also easy to be recycled and is conducive to environmental protection. Aluminum Alloy window frame materials to improve the heat insulation performance, should be made or composite bridge.
Glass should be used to promote the use of hollow glass, and in the North should be promoted to use Low-E type (low radiation) hollow glass. In the south, to the solar radiation heat mainly in the region, should promote the use of sun coated glass. Foreign developed countries have basically no single glass and white glass, because they are not conducive to energy saving and improve the living environment.
The use of double sealing and poly sulfur hollow glass glue to make hollow glass, hollow glass spacer should adopt continuous corner type structure, if the four corners plug, the joint must be sealed with butyl rubber. Single sealing hollow glass is not available, with silicone rubber two sealed insulating glass is not advisable, because they are relatively short service life.In addition, the so-called double glass is not available. Some types of window in order to reduce the heat transfer coefficient, and the price is low, the double glass, which is two layers of glass or separated with ordinary adhesive seal up to the window, no molecular sieve absorbing moisture, is only a single seal. General sealant aging intolerance, it does not take a long time, will be into the gray dust, and can not wipe sight, very unsightly. Because the use of hollow glass polysulfide hollow glass made of rubber, if only single track seal, seal life is only five years, is expressly allowed to use the standard glass curtain wall, and ordinary sealant, its life is shorter.One of the most critical aspects of building engineering is the use of life, that is, the durability of the problem. This double glass is a temporary a matter of expediency is very undesirable. ⑤And furthermore, nor desirable with 5mm thick glass in building doors and windows. Because 5mm thick glass used in the larger area of the window, security is also a problem of concern. If you want to use it, it should be calculated after the intensity, in the premise of ensuring security and then use, must not be indiscriminate use. Kind of accessories to durable, convenient use and beautiful appearance. Parts of the performance of windows and doors have important influence, but also plays an important role in the decoration, and therefore can not be ignored. And furthermore, nor desirable with 5mm thick glass in building doors and windows. Because 5mm thick glass used in the larger area of the window, security is also a problem of concern. If you want to use it, it should be calculated after the intensity, in the premise of ensuring security and then use, must not be indiscriminate use. Kind of accessories to durable, convenient use and beautiful appearance. Parts of the performance of windows and doors have important influence, but also plays an important role in the decoration, and therefore can not be ignored.
Aluminum alloy doors and windows processing must realize the quality of; because the only way to make it have a good performance and good environment to beautify the role of. Aluminum doors and windows industry must establish a sense of quality, must stop the production of a small number of poor quality products. In order to improve the heat insulation and sound insulation products, must be widely used thermal break aluminum, glass and high quality accessories, but also widely used in many aspects of the system design and development of new products is economical and practical, accord with the situation of our country to become the mainstream of China's aluminum doors and windows industry in twenty-first Century. |
