How to choose aluminum alloy doors and windows for

2022-07-22
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The market of aluminum alloy doors and windows is growing. Now many buildings use aluminum alloy doors and windows, so learning to judge the quality of aluminum alloy materials has also become a necessary knowledge for consumers. How to judge the advantages and disadvantages of aluminum alloy doors and windows? Whether it is aluminum alloy indoor doors (including partition doors) or aluminum alloy windows, decoration owners must pay attention to the following points when purchasing aluminum alloy doors and windows:

the market for aluminum alloy doors and windows is growing. Now many buildings use aluminum alloy doors and windows, so learning to judge the quality of aluminum alloy materials has also become a necessary knowledge for consumers. How to judge the advantages and disadvantages of aluminum alloy doors and windows? Whether it is aluminum alloy indoor doors (including partition doors) or aluminum alloy windows, decoration owners must pay attention to the following points when purchasing aluminum alloy doors and windows:

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attention to the purchase of aluminum alloy doors and windows 1. Identification of signs

manufacturers with formal or production licenses should indicate the signs of products in 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 “ Moisture proof &rdquo& ldquo; Handle with care ” And “ Up ” Words and signs of

attention to the purchase of aluminum alloy doors and windows II. Surface quality

the surface quality of aluminum alloy doors and windows directly affects the decorative effect of the whole wall after installation. Pay attention to the following aspects when checking the surface quality of doors and windows:

1 The decorative surface of doors and windows should not have obvious damage, which means that the protective film on the surface of doors and windows should not have scratches

2. There should be no obvious color difference on the colored surface of adjacent components on doors and windows

3. The surface of doors and windows shall be free of aluminum chips, burrs, oil spots or other stains, and the assembly joints shall be free of overflowing adhesives

pay attention to the purchase of aluminum alloy doors and windows. III. size deviation

the smallest size deviation of aluminum alloy door and window frames is better

attention to the purchase of aluminum alloy doors and windows IV. aluminum alloy door and window components

aluminum alloy door and window components should be firmly connected, and corrosion-resistant filling materials should be used to seal and waterproof the connecting parts

pay attention to the purchase of aluminum alloy doors and windows. Fifth, look at the material

there are six main aspects of materials for reference:

1 Thickness: there are 70 series and 90 series aluminum alloy sliding doors, and 70 series aluminum alloy sliding doors inside the house can be used. The number of series represents the number of millimeters 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. Aluminum alloy sliding windows used as closed balconies 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 aluminum alloy doors and windows, you can bend the profile moderately by hand, 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 obvious, it is not suitable for purchase

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

5. Gloss: aluminum alloy doors and windows should avoid choosing profiles with open bubbles (white spots) and ash (black spots) on the surface, as well as cracks, burrs, peeling and other obvious defects

6. Oxidation degree: the thickness of oxide film should reach 10 microns. When purchasing aluminum alloy doors and windows, you can scratch the surface of the profile to see whether the oxide film on its surface can be wiped off

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