Analysis on the wide application range of aluminum

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Scope of application of aluminum alloy doors and windows: aluminum alloy doors and windows are applicable to the door and window works of modern high-end buildings such as hotels, auditoriums, gymnasiums, cinemas, libraries, scientific research buildings, office buildings, electronic computer rooms, and civil residences, which are required by airtightness, heat preservation and sound insulation

top of the list: light weight, high strength: aluminum alloy materials are mostly hollow core thin-wall composite sections, which are convenient to use, reduce weight, and the sections have high bending strength. The doors and windows made of them are used with small deformation

second: good sealing function. Sealing function is the main functional goal of doors and windows. Compared with general wood doors and windows and steel doors and windows, aluminum alloy doors and windows have better air tightness, water tightness and sound insulation functions. For aluminum alloy doors and windows, the airtightness of sliding doors and windows is slightly worse than that of casement doors and windows. Therefore, nylon wool is added to the structure of sliding doors and windows to enhance its airtightness

third: corrosion resistance, easy to use and repair. Aluminum alloy doors and windows do not rust, do not fade, the appearance does not need painting, and the repair cost is low

fourth: high strength, good stiffness, strong and practical

fifth: high application value. In building decoration projects, especially for high-rise buildings and high-grade decoration projects, if we comprehensively weigh the decoration function, air conditioning operation and long-term repair, the application value of aluminum alloy doors and windows is superior to other kinds of doors and windows

sixth: corrosion resistance, easy to use and repair. Aluminum alloy doors and windows do not need painting, fade and fall off, and the appearance does not need to be repaired. Aluminum alloy doors and windows have high strength, good rigidity, firmness, convenient and sensitive opening and closing, and no noise

six goals of aluminum alloy doors and windows raw materials

1. Thickness: aluminum alloy sliding doors have 70 series and 90 series, and aluminum alloy sliding doors inside the residence can use 70 series. The series number indicates the millimeter number of the structural dimension of the door frame thickness. There are four kinds of aluminum alloy sliding windows: 55 series, 60 series, 70 series and 90 series. The selection of series should be based on the size of the window opening and the local wind pressure value. The aluminum alloy sliding window used to close the balcony shall not be less than 70 series

2. Strength: the tensile strength should reach 157 Newtons per square millimeter, and the yield strength should reach 108 Newtons per square millimeter. When purchasing, you can use your hand to bend the profile moderately, and it should be able to return to its original state after you let go

3. Chromaticity: the color of the same aluminum alloy profile should be consistent. If the color difference is significant, it is not suitable for purchase

4. Flatness: check the appearance of aluminum alloy profile, and there should be no depression or bulge

5. Gloss: aluminum alloy doors and windows prevent the purchase of profiles with obvious defects such as open bubbles (white spots) and ash (black spots), as well as cracks, burrs, peeling, etc

6. Oxidation degree: the thickness of oxide film should reach 10 microns. When shopping, you can cut the profile surface gently to see whether the oxide film on its surface can be wiped off





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