The six main points of the purchase of doors and windows (door and window decoration renderings):

First, the materials

The main materials for doors and windows generally include three aspects: aluminum profiles, glass, hardware (hardware decoration renderings), when the owner buys products early, they tend to pay more attention to the thickness of aluminum profiles and glass, but the requirements for hardware are not very high. This is not comprehensive. In fact, the requirements of the national colorful aluminum window are certain. The thickness, strength and oxide film of the aluminum profile used for high-quality color aluminum window can generally meet the national standards. For example, the relevant national regulations: aluminum profile wall of color aluminum window The thickness should be above 1.2mm and the thickness of the oxide film should be 10 microns. While tempered glass is better than ordinary glass, if the safety and durability of doors and windows can be considered, the hardware accessories (such as screws, hinges, etc.) of stainless steel are better than aluminum fittings, and the pulleys are best to use POM materials because These products have higher strength and wear resistance, smooth and not easy to use during use. Be aware that door and window damage is usually the beginning of 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 currently not high, and most of them rely on the manual operation of the installation workers, which requires the operator to have a good sense of product quality. It is important to enhance the proficiency of the operator during the production process and product awareness. High-quality color aluminum window, fine processing, smooth tangent, uniform angle (the main frame material is usually 45 degrees or 90 degrees), there should be no obvious gap in the splicing process, the sealing performance is good, the switch is smooth . If the processing is unqualified, there will be problems with the sealing property. Not only will the wind leak and the rain leak, but under the action of strong wind and large external force, the glass will explode and fall off, which will cause property damage or even injury to the owner.

Third, performance

The performance of doors and windows varies depending on the scope of use. It is usually considered in several aspects: strength, which is mainly reflected in the selection of the profiles of doors and windows, whether it can withstand ultra-high pressure; air tightness is mainly reflected in On the structure of doors and windows, whether the inner and outer frames of the doors and windows are tight and the doors and windows are tight.

Fourth, the price

Since 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. Under normal circumstances, the price of quality doors and windows is 30% higher than that of inferior doors and windows. Inferior doors and windows are usually made of aluminum extruded aluminum with a large amount of impurities. The aluminum profiles used have a wall thickness of only 0.6-0.8 mm. Whether the tensile strength or the yield strength is much lower than the national regulations, such doors and windows are very unsafe, so the owners should not be tempted to buy cheap products, but despise the safety of themselves and others.

Fifth, the appearance

Customers are looking for door and window products, usually paying attention to the appearance of the product and the decorative pattern of the glass, and often scorn the composite film on the surface of the door and window. The composite film is formed by the coloration of the thermal oxide film, which has corrosion resistance, wear resistance, high gloss, and a certain fireproof function of the colleague Hai Ju, so it is necessary to compare similar products when purchasing aluminum alloy door and window products. In the glass process, it varies from person to person, and different owners choose according to their own preferences.

Sixth, reputation

It is also very important to pay attention to the reputation and service quality of the business when choosing. Try to choose a manufacturer with a good brand reputation. Check the relevant qualifications of the manufacturer to see if the relevant industry standards are complete and true. Before installation, pay attention to the internal materials of the door lock hole and make the final check.

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