[China Aluminum Industry Network] As far as the current situation of China's door and window industry is concerned, wooden windows and steel windows have gradually withdrawn from the historical stage, and aluminum alloy windows and plastic windows have begun to play a major role. The second-generation aluminum alloy windows discussed here mainly refer to the aluminum alloy profiles represented by powder spray, fluorocarbon, electrophoresis, and broken bridge thermal insulation profiles produced by the world's cutting-edge technologies and equipment. The main performance comparison between the two.
1.Strength and weight: The strength of aluminum alloy is 3 times that of plastic. The wind pressure resistance of window is two levels higher than that of plastic. The cross-sectional area of ​​the aluminum alloy window frame is only 1/3 of the plastic window frame, and the weight of the window frame is much lighter.
2. Weather resistance and corrosion resistance: The weather resistance of the second-generation aluminum alloy window is better than that of the plastic, and it can be maintained for more than 10 years without discoloration. Its comprehensive corrosion resistance is better than that of the plastic.
3. Deformation: The coefficient of thermal expansion of plastic is 3 times that of aluminum alloy. Therefore, its thermal expansion and contraction deformation is large.
4. Safety and environmental protection: Aluminum alloy has high temperature resistance and good flame retardancy; it can avoid lightning and static electricity; it can be recycled and used, and it is beneficial to environmental protection. Plastics are not resistant to high temperatures and are not flame-retardant; they are insulators, but they need to be protected against static electricity; they degrade slowly and are unfavorable for recycling. Slow combustion releases toxic gases.
5. Decorative: Aluminum alloy windows are rich in color and decorative, which can meet the individual requirements of real estate and commercial buildings of different quality.
Applicable scope and development trend The second-generation aluminum alloy window has high strength, good rigidity, light weight, good fire resistance, weather resistance, corrosion resistance, environmental protection, heat insulation effect has been greatly improved, and the color is rich. Mature technology, cost-effective. In addition to the acid and alkali corrosion environment, it is suitable for various occasions, especially high-quality real estate and office buildings.
Eastern coastal and developed cities, which have pioneered the use of plastic windows, have begun to make heavy use of second-generation aluminum alloy doors and windows. At the same time, according to the national environmental protection, energy conservation policy requirements and analysis of the development laws and status quo of the building doors and windows industry, the door and window industry will undergo major changes, the second generation of aluminum alloy doors and windows will be used in large quantities, in the high-end real estate and business buildings It gradually exceeds plastic doors and windows. In particular, the second-generation aluminum alloy double-glazing and insulating glass windows will be widely used.
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