The main materials of doors and windows generally include aluminum profiles, glass and hardware. Owners often pay more attention to the thickness of aluminum profiles and glass when purchasing products, but the requirements for hardware are not very high, which is not comprehensive. In fact, the national requirements for colored aluminum windows have certain standards. The thickness, strength and oxide film of aluminum profiles for doors and windows in Fu Xuan generally meet the national standards. For example, the relevant national regulations require that the wall thickness of aluminum profile for color aluminum window should be no less than 1.2mm, and the thickness of oxide film should reach 10 micron. Tempered glass is better than ordinary glass. Considering the safety and durability of doors and windows, stainless steel hardware fittings (such as screws and hinges) are better than aluminum fittings, and POM is the best material for pulleys, because these products have higher strength and wear resistance, and are smooth and not easy to break during use. You know, the damage of doors and windows usually starts from the door and window accessories!
Second: processing
With good materials, the next step is the processing of doors and windows. Because the technical content of doors and windows is not high, the degree of mechanization is not high at present, and most of them still rely on the manual operation of installation workers, which requires operators to have good product quality awareness. It is very important to strengthen the operator's proficiency and product awareness in the production process. High-quality color aluminum window, fine processing, smooth tangent and consistent angle (the main frame material is generally 45 degrees or 90 degrees), there should be no obvious gaps in the splicing process, good sealing performance and smooth opening and closing. If the treatment is unqualified, there will be sealing problems, not only air leakage and rain leakage, but also under the action of strong wind and large external force, the glass will burst and fall off, causing property losses and even personal injury to the owner.
Third: performance
The performance of doors and windows has different emphasis due to different application scope, but usually the following aspects should be considered: strength, mainly reflected in the material selection of doors and windows, whether it can withstand ultra-high pressure; Air tightness is mainly reflected in the structure of doors and windows, whether the structure of inner fan and outer frame of doors and windows is tight, and whether the doors and windows are tight.
Fourth: price
Because the price of doors and windows is directly related to the price of aluminum ingots, the price of doors and windows is relatively stable in a certain period of time. In general, the price of high-quality doors and windows is 30% higher than that of inferior doors and windows. Inferior doors and windows usually use aluminum profiles extruded from recycled aluminum containing a lot of impurities. The thickness of some aluminum profiles used is only 0.6-0.8 mm, which is far lower than the relevant national regulations in terms of tensile strength and yield strength. This kind of door and window is very unsafe.
Fifth: appearance
When customers buy doors and windows, they usually pay great attention to the appearance of products and the pattern of glass, but often ignore the composite film on the surface of doors and windows. This kind of composite film is formed by artificial oxidation film coloring, which has corrosion resistance, wear resistance, high gloss and certain fire prevention function. Therefore, when purchasing aluminum alloy doors and windows products, we should compare similar products. Glass technology varies from person to person, and different owners choose according to their own preferences.
Sixth: credibility
It is also important to pay attention to the reputation and service quality of the merchants when choosing! Here can be tested from three aspects: First, try to choose a manufacturer with a good brand reputation. Fu Xuan doors and windows are standardized in scale, product quality and service system. Second, check whether the relevant qualification certification of the manufacturer is complete and true by comparing with relevant industry standards. Third, pay attention to the final inspection by looking at the internal material of the door lock hole before installation. We can't go to the factory to see what to do. Only by considering brands with high popularity and good reputation can we be guaranteed. We think it is reasonable to pay the price.