Aluminum alloy doors and windows have high strength, good rigidity, light weight, good fire resistance, weather resistance, corrosion resistance, environmental protection and other advantages. Let's talk about one of the properties of aluminum alloy doors and windows - weather resistance.
① The aging mechanism of rigid PVC plastics is that macromolecules break into small molecules by absorbing ultraviolet rays of sunlight. The addition of white powder in the formula of aluminum alloy door and window profiles can shield ultraviolet rays.
② According to the long-term exposure of the profiles, no change was found in the exposure range of - 1.0 mm.
③ According to GB 11793.2-89 (technical conditions for mechanical properties and weather resistance of PVC plastic windows), the weatherability of plastic windows can be tested by artificial accelerated aging method, natural aging exposure method and weathering test of whole impact window. The artificial accelerated aging test shows that plastic doors and windows can be used for a long time in the environment with large temperature difference. The phenomenon of deterioration, aging and embrittlement of doors and windows will not be caused by sun exposure and humidity
④ The earliest plastic doors and windows abroad have been used for nearly 40 years, and their materials are still in good condition. The good use of domestic plastic doors and windows in Haikou Power Plant and Great Wall Station in Antarctica has proved the good weather resistance of plastic doors and windows.
The high-quality performance of aluminum alloy doors and windows is an indispensable high-quality product of doors and windows in sunlight room, workshop, high-rise buildings and other construction projects.