The thickness of aluminum alloy door and window products is not selected according to the minimum wall thickness of the specification, but is selected according to the size of door and window holes, wind pressure value and the requirements of air tightness and water tightness of the designed doors and windows. Under the requirements of ensuring product safety, performance and environmental protection, the thicker the wall thickness of door & window profile is, the better the product quality will be.
To judge the quality of aluminum alloy doors and windows, we should start with the following points.
1. Whether the profile design is reasonable.
2. Whether the air tightness and water tightness of doors and windows are up to standard.
3. What is the configuration of hardware, glass and auxiliary attachment of doors and windows.
If a door and window, its profile design is unreasonable and its watertightness and air tightness are not up to standard, even if its wall thickness exceeds N times of the national standard, it is not a good product.
Features of high quality aluminum alloy doors and windows
Raw materials
1. Aluminum
The aluminum used for good aluminum alloy doors and windows has a smooth and shiny surface without aluminum chips, burrs, etc. Its strength, thickness (≥ 1.4mm), and oxide film (≥ 10 μm) must meet the national standards, small door and window manufacturers are in a mixed market pattern, and there are many "thin materials" to be shoddy. Consumers are advised to choose reliable and well-known brand products.
Raw materials
2. Glass
compared with ordinary glass, tempered glass is obviously a better choice. Strong impact resistance, not easy to break, even if broken, it will be broken in the form of particles without acute angle, which greatly reduces the harm to human body. At the same time, it has good thermal stability, and the sound insulation effect of tempered insulation glass is better. Fuxuan doors and windows choose 3C certified tempered glass as raw material, and the double-layer tempered glass structure effectively isolates noise and heat energy.
Raw materials
3. Hardware accessories
the quality of hardware accessories such as hinges, door handles, locks, pulleys, etc. is the key to ensure the service life of aluminium alloy door. Use stainless steel hardware, bright color, no rust, scratch and other phenomena. Fuxuan doors and windows are made of imported hardware such as German stigiya and Haobo, which is durable and weather-resistant, ensuring long-term use of doors and windows.
Process and performance
4. Manufacturing process
Good aluminum alloy door and window products, finely processed, smooth tangent, accurate angle, no obvious gap in the splicing process, good sealing performance, smooth switch. If the processing technology is unqualified and sealing problems occur, not only air leakage and rain leakage, but also under the action of strong wind and external force, the glass is prone to crack and fall off.
Process and performance
5. Auxiliary accessories
Sealing Strip and wool tops are important accessories to ensure aluminium alloy door, especially hollow soundproof doors and windows. The sealing strip must have sufficient tensile strength, good elasticity, good thermal endurance and aging resistance, and the section structure size should match the aluminum door profile. Wool tops must be sealed, waterproof, sealed and dustproof.
Editor: China door and window network -- ak
