ã€China Aluminum Network】
Aluminum alloy doors and windows have the characteristics of good performance, light weight, beautiful appearance, good lighting, durability, easy recycling of profiles and high reuse rate, and no environmental pollution. However, the poor thermal insulation properties of the frame material affect the performance of aluminum doors and windows. Therefore, improving its thermal insulation and energy-saving performance is the key technical problem to be solved in the future of aluminum alloy doors and windows, and is also the development direction of the doors and windows enterprises. The following nine Zheng Xiaobian summarizes the breakthrough direction for improving the energy saving performance of aluminum alloy doors and windows.
To improve the structural design to improve the performance and grade of existing doors and windows, we must improve the structural design. In the past, only the low-level structure of labor saving, material saving, and low price was pursued, and the performance was improved mainly by sliding windows. Window-based transition, the realization of single-layer, double-layer, three-tier and small open large fixed and other diverse system design.
Pay attention to the selection of raw materials The general requirements of the 1 frame material should be good strength, good heat insulation performance, easy to make into a variety of shapes, but also easy to recycle and conducive to environmental protection. Aluminum alloy window frame material should improve its heat insulation performance and should be made into broken bridge or compound type.
2 Glass should promote the use of hollow glass, and in the north should promote the use of Low-E type hollow glass. In the south, solar-coated glass should be promoted in regions where solar radiant heat predominates. Foreign developed countries basically do not use single glass and white glass, because they are not conducive to energy saving and improving the living environment.
3Promote the use of double-channel seals and hollow glass made of polysulfide hollow glass glue. The insulating glass spacers should adopt continuous angle structure. If four-corner plug-in type is used, butyl rubber must be used for sealing at the joints. . Single-pass sealed hollow glass is not available. Insulating glass with secondary silicone sealant is also not advisable because their service life is relatively short.
4 Another so-called double glass is also not available. In order to reduce the heat transfer coefficient, some windows have a low price. They use double glass, which is to separate the two layers of glass or use ordinary sealant to glue them on the window. No molecular sieve is used to remove moisture. It is only a single seal. General sealant is not resistant to aging, it will not take long, it will enter the dust, dust, and can not wipe, affect the line of sight, very unsightly. Because the use of polysulfide hollow glass glue made of hollow glass, if only sealed with a single channel, the seal life is only five years, is the glass curtain wall specification is not allowed to use the text, not to mention sealed with ordinary sealant, Life is shorter. One of the key aspects of construction engineering is the service life, that is, durability. Using this double glass is only a temporary expedient measure and is extremely undesirable.
5 Furthermore, it is not advisable to use glass with a thickness of 5mm on building windows and doors. Because 5mm thick glass is used on windows with a larger grid area, safety is also a concern. If it is to be used, it should also be used under the premise of ensuring safety after the intensity calculation, and must not be used indiscriminately. The accessories are made of durable, easy to use and beautiful. Accessories play an important role in the performance of doors and windows, but also play an important decorative role, and therefore can not be ignored.
Aluminum doors and windows industry must establish a sense of quality, we must stop the production of low-grade low-quality products. In order to improve the heat insulation and sound insulation performance of products, it is necessary to promote the use of heat-insulating aluminum profiles, insulating glass, and high-quality accessories in large quantities. At the same time, we must adopt a wide range of system designs to develop new products that are economically used and in line with China’s national conditions.
Shandong Zeen Decoration Material Co., Ltd. , https://www.zeendecor.com