How to select aluminum alloy doors and windows

1. Look at the product logo of doors and windows

Manufacturers with regular or production license shall indicate the product marks on the obvious parts of their aluminum alloy products, including: Manufacturer's name or trademark, product name, product model or mark, manufacturing date or number. There should be obvious words and signs of "moistureproof", "handle with care" and "upward" on the packing box.

2. Look at the material of doors and windows

The relevant national regulations require that the wall thickness of aluminum profile of aluminum alloy doors and windows should not be less than 1.2mm, and the thickness of oxide film should reach 10 microns. Therefore, the decoration of aluminum alloy doors and windows should choose high-quality products whose thickness, strength and oxide film can generally meet the national standards.

3. Look at the surface quality of doors and windows

The surface quality of aluminum alloy doors and windows directly affects the decoration effect of the whole wall after installation. Therefore, there should be no obvious damage to the decorative surface of aluminum alloy doors and windows, no obvious color difference on the colored surface of adjacent components, aluminum chips, burrs, oil spots or other stains, and no overflow adhesive at the assembly joint.

4. Look at the window glass

The glass of doors and windows shall be flat and firmly installed without looseness. The single-layer glass shall not directly contact the profile. The internal and external surfaces of the double-layer glass shall be clean. There shall be no dust and moisture in the glass interlayer, and the partition strip shall not be cocked.

5. Look at the door and window components

The connection of aluminum alloy door and window components shall be firm, and corrosion-resistant filling materials shall be used to make the connection part sealed and waterproof.

6. Sealing degree of door and window

The contact between the sealing strip of aluminum alloy doors and windows and the glass and the glass notch shall be smooth, without curling and groove removal. When the doors and windows are half closed, there shall be no obvious gap between the fan and the frame, and the sealing strip on the sealing surface shall be in a compressed state.

7. Look at the size deviation of doors and windows

The minimum dimension deviation of aluminum alloy door and window frame is better.

[single point manager manufacturer introduces three components of hardware accessories]

Door and window hardware is divided into three parts according to function: operation part, locking part and connecting bearing part. Reduce the production cost of hardware accessories and take standardized products. The following specific analysis:

1： Operating parts (hand)

At present, the profile standards in the industry are developed according to European standards. In order to improve the energy saving efficiency, aluminum cross-section adopts multi cavity bridge breaking insulation profile. China has a wide range of aluminum materials, which brings rich varieties and choices to people's windows, thus bringing thousands of differences in hardware accessories for manufacturers. It also brings a lot of confusion to the technicians. In particular, some profile developers, in order to save costs and reduce the width and size of the material surface, are now compared and analyzed by opening windows. As shown in Figure 1, the size of the mounting handle surface can hardly be fixed by screws. The hardware accessories manufacturer will also develop corresponding accessories, so the relative size of the corresponding operating parts will also be reduced (the beautiful proportion of the whole window). Figure 2 uses European standard profile, and the size is reasonable, And it is a multi cavity bridge breaking insulation profile. The material surface is small, and the fixing method is to use side screw to fix it, as shown in Fig. 3. The accessories installed in Figure 4 are more beautiful and atmospheric.

The operating parts are used to operate and open doors and windows every day. Each enterprise has different components and internal structure. The products to be well done should have standard raw materials and mature processing technology, reasonable quality inspection, and installation should be in place. Correct fixing method is required. If not firm and damaged, the opening and closing shaking clearance is large and the hand feeling is poor, The operator can perceive the quality of door and window hardware accessories. Loose, falling off fixing screws, loose handle and even broken fixing feet will affect the service life of doors and windows. According to the industry standard, the service life of the hardware after anti-corrosion and rust prevention treatment is 10 years, which is enough to meet the use of normal building doors and windows. Good hardware should appear thick, and the surface gloss is good, the protective layer is dense, no scratch, the most important point is to open flexible.

2： Locking components

The locking parts mainly include lock point, lock lock, driver, corner device and other transmission parts. The use of these accessories plays an important role in the physical properties of doors and windows (wind pressure resistance, water tightness, air tightness, sound insulation, heat insulation, etc.), and the function of anti-theft is required when locking. This requires that hardware fittings must be firmly embedded in the profile, only if they are combined firmly with the profiles, can the function of anti-theft be realized. Therefore, the European standard groove profile should be preferred. The hardware fittings are standardized without special configuration, and can be selected at any time and of good quality. It can meet the principle of not damaging the structure of profile and less drilling, convenient installation and adjustment, and ensuring the performance requirements of doors and windows. Instead of standard slotted profile, the hardware fittings are fixed by screws. Imagine only 1.4mm thick aluminum profile. The screw is 5mm large. The anti-theft ability of slotted profile fixed by screws is far less than that of European standard groove profile.

3： Frame and fan connect bearing parts

The main connecting load-bearing parts are hinge, sliding support and pulley. The selection of this part is particularly important, which is related to the performance, safety and life of the door and window functions.

As far as the function is concerned, hinge is an important part to realize the turning and bearing of doors and windows, mainly used for the flat window and open the door. Its firmness and anti-theft performance are the same as the locking parts, and hardware fittings matching with European standard groove profile are preferred. The safety performance of the stainless steel clamp block is better than that of the screw.

Sliding brace is applied to the external flat window and curtain wall external suspension window. Because the window is open to the outside, the bearing requirements of the height, width and weight of the fan should be considered, and the sliding support of the corresponding bearing level shall be selected. Especially in the aspect of bearing performance, it is necessary to pay attention to the importance of the designer. Sometimes, in order to improve the transmittance ratio and ventilation of building doors and windows and increase the size of doors and windows, designers just ignore the safety problems of doors and windows, increase the number of fixed windows, increase the number of windows, reduce the size of windows, and reduce the safety of operators. Otherwise, once there are safety problems, the consequences will be unthinkable.

The pulley is used for sliding door window. The push and pull function of doors and windows is realized. The corresponding bearing level can be selected.

Because the air tightness of flat windows is better than that of sliding windows, for safety reasons, in Beijing, local regulations, multi-storey residential buildings (less than or equal to 6 floors) usually adopt external flat opening or sliding windows; High rise buildings shall not be provided with external flat windows. When the window is open or pushed, measures should be taken to strengthen the sash and prevent falling off. Outside the building, window opening refers to the outer window, but cannot be understood as the "external window opening" of the building. As the technical measures for the design of national civil building engineering (2009) is page p198, and article 10.4.2 clearly states that the outer flat window should not be used for high-rise buildings. The article in Article 2 of article 10.6.2 on page P201 of 2009 edition of national technical measures for civil construction engineering also states that the safety glass shall be used for windows opening of buildings on the 7th floor and above.

At the same time, hardware is constantly improving the function of doors and windows. The concept change, under the traditional competition conditions, hardware enterprises rely on internal advantages, such as product quality, brand influence and so on. The market competition is not only through its own internal advantages, but also through its own resources and market publicity to launch competition. It is important to form the combination of internal advantages and external forces, pay attention to the quality of hardware products, and also the promotion of hardware brands, and pay attention to the improvement of service.

[single point manager manufacturer]

Guangdong Tianbian construction hardware products Co., Ltd., founded in 1989, is located in Jinli Town, Gaoyao City, Guangdong Province, the hometown of hardware. It is a large-scale enterprise in the domestic construction hardware industry, and also one of the large-scale hardware manufacturers of doors, windows and curtain walls in China; Mainly engaged in high-end building doors and windows curtain wall hardware system hardware accessories product development, production and sales. After 30 years of hard work, innovation and precipitation, we have stepped on the development road of the leading enterprise of construction hardware manufacturing. From Foshan Tianbian aluminum alloy door and window accessories die casting factory to Guangdong Tianbian construction hardware products Co., Ltd., from channel circulation products "crescent lock king" to engineering supporting perfect system hardware product service, from unknown small factory to large-scale modern production base. Mr. Liu Baoqiang, chairman of the board of directors, led the new and old Tianbian people. After five times of large-scale technological innovation and enterprise upgrading, Tianbian hardware has become a representative in the innovation and development of the industry and a famous domestic brand.