【 Building materials network 】 Aluminium alloy door How to choose and buy windows has always been the primary question for many industries. According to insiders, door According to the classification of the Expo, there are: craft decoration doors Solid wood door 、 Composite door 、 Moulded door 、 Partition door 、 cupboard door 、 Folding door Sliding door, sliding door, shutter door, bronze carving Process gate 、 Glass mosaic Wooden doors 、 Plastic steel door window 、 Color plate door Windows, plastic doors, etc. How to choose good doors and windows for yourself? Here is a classic and useful window shopping guide, hoping to help you.

Top: Materials

The primary materials for doors and windows generally include three aspects: aluminum profiles, glass, and hardware. When purchasing products, owners often pay more attention to the thickness of aluminum profiles and glass, while the requirements for hardware are not very high, which is not comprehensive. In fact, the national requirements for color aluminum windows are certain to be standardized. The thickness, strength and oxide film of aluminum profiles used for high-quality color aluminum windows can generally meet the national specifications. For example, the relevant national regulations require that the wall thickness of aluminum profiles for color aluminum windows should be no less than 1.2 mm, and the oxide film thickness should be 10 microns. Tempered glass is better than ordinary glass. If the safety and durability of doors and windows are considered, the hardware fittings made of stainless steel materials (such as screws, hinges, etc.) are better than aluminum fittings. The pulley is recommended to choose products made of POM materials, because such products have higher strength and wear resistance, and are smooth in use and not easy to break. You know, door and window damage usually starts from 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, and the degree of mechanization is not high now, most of them still rely on the manual operation of the installation workers, which requires the operators to have an outstanding understanding of product quality. It is very important to strengthen the operator's proficiency and product awareness in the production process. High quality color aluminum window, with precise processing, tangent flow and common angle (the main frame material is generally 45 degrees or 90 degrees), should not show significant gaps in the splicing process, with good sealing function and smooth opening and closing. If the processing is unqualified, there will be sealing problems, not only air and rain leakage, but also under the effect of strong wind and strong external force, the glass will appear to burst and fall, and then cause the owner to lose assets or even hurt people.

Third: Appearance

When purchasing door and window products, the owner usually attaches great importance to the appearance of the product and the decorative picture of the glass, but often underestimates the composite film of the door and window appearance. This composite film is formed by coloring the artificial oxide film, has corrosion resistance, wear resistance, high gloss, and also has a certain fire protection function. Therefore, when purchasing aluminum alloy door and window products, we should compare more with similar products. The glass technology varies from person to person, and different owners choose according to their own preferences.

Fourth: Price

Because the price of doors and windows is directly related to the price of aluminum ingots, but generally the price of doors and windows is relatively stable in a certain period. In general, the price of high-quality doors and windows is 30% higher than that of defective doors and windows. Defective doors and windows generally use aluminum profiles containing many impurities, and some aluminum profiles used are only 0.6-0.8mm thick, Both the tensile strength and the degree of compliance are much lower than the relevant national regulations, and such doors and windows are very unsafe. Therefore, owners should not underestimate their own personal safety and others' personal safety by trying to be cheap.

Fifth: Function

The functions of doors and windows have different priorities due to different scales of use, but generally the following aspects should be considered: strength, which is mainly reflected in the selection of profiles for doors and windows, whether they can accept ultra-high pressure; The air tightness is mainly reflected in the structure of doors and windows. Whether the inner leaves and outer frames of doors and windows are tight, and whether the doors and windows are tight.

Sixth: Promise

It is also very important to pay attention to the promises and service quality of merchants when selecting! Here we can check in three aspects:

1、 Try to select manufacturers with good brand reputation.

2、 Check whether the relevant qualification certification of the manufacturer is completely realistic compared with the relevant industry specifications.

3、 Before the device, pay attention to the internal materials of the door lock hole after inspection, and carry out subsequent checks.

In addition, feel the hand. As for the process and quality of the product, we are unlikely to go to the manufacturer to see how it is processed. We can only identify the process quality of the product through simple appearance inspection. Here we are taught two points: hand touch and side light. Touch the frame, panel and corner of the door with your hand. It is required to be soft and delicate without scratch. Then stand on the side of the door to see whether the paint surface of the door panel is uneven. Basically, we can know whether the workmanship is qualified by these two times.