In our daily consumption, I believe that many people think that: the higher the commodity price, the better the quantity, the thicker the material, the better...... Because the more materials consumed, the higher the price will be, and the quality is naturally unnecessary. So, is this kind of understanding right?
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. In the case of product safety, performance, environmental protection and other requirements, the thicker the wall thickness of door & window profile, the better the product quality.
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. At the same time, excessive pursuit of aluminum alloy profile wall thickness will definitely bring unnecessary waste of resources to the country, and too thick profiles will inevitably bring high prices and unnecessary expenses to consumers.
Features of high quality aluminum alloy doors and windows
1. Raw material 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 (≥ 1.2mm), 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.
2. Raw material 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 better sound insulation effect.
3. Raw material 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, the most important is to choose reliable brand hardware, big brand hardware and profiles will be engraved with brand LOGO.
4. Auxiliary accessories
sealing Strip and wool tops are important accessories to ensure aluminium alloy door, especially hollow door. 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 requires good sealing performance, waterproof performance, and dense dustproof.
5. Process and performance
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 is unqualified, there will be sealing problems, not only air leakage and rain leakage, but also under the action of strong wind and external force, the glass will easily burst and fall off.
