How to judge the quality of aluminum alloy doors and windows?

by:Zeyi     2021-07-19
Aluminum alloy doors and windows have excellent characteristics, and more and more household applications. Due to the high production cost of high-quality aluminum alloy doors and windows, the overall price is about 30% higher than that of inferior aluminum alloy doors and windows. The wall thickness of some aluminum alloy doors and windows is even made of 0.6-0.8mm aluminum profile, and the tensile strength and yield strength are much lower than the relevant national standards, and it is not safe to use. So, how to judge the quality of aluminum alloy doors and windows? The editor is here to talk to everyone:    One, the materials used for aluminum alloy doors and windows. The thickness, strength and oxide film of aluminum profiles used in high-quality aluminum alloy doors and windows should comply with relevant national standards. The wall thickness should be 1.2mm or more, the tensile strength should reach 157 Newtons per square millimeter, and the yield strength should reach per square meter. Millimeter 108 Newton, the oxide film thickness should reach 10 microns. If the above standards are not met, it can be judged to be inferior aluminum alloy doors and windows and cannot be used.   Aluminum alloy door and window manufacturer with formal or production license, its aluminum alloy door and window products are marked with the product logo, including: manufacturer name or trademark, product name, product model or mark and manufacturing date or serial number. The packing box should have obvious moisture-proof, handle with care and upward words and signs, etc.    Second look at processing. High-quality aluminum alloy doors and windows have the characteristics of fine processing, careful installation, good sealing performance and easy opening and closing. Inferior aluminum alloy doors and windows, blindly select aluminum profile series and specifications, processing in shoddy, sawing instead of milling, and installation not as required, poor sealing performance, uncomfortable opening and closing, not only leakage of wind and rain, and glass bursts, etc. In addition, when encountering strong winds and external forces, it is easy to knock off the sliding parts or scrape off the glass, etc., causing damage and injury.   The connection of aluminum alloy door and window components should be firm, and corrosion-resistant filling materials should be used to seal and waterproof the connection part. The surface quality of doors and windows directly affects the decorative effect of the entire wall after installation. The following aspects should be paid attention to when checking the surface quality of doors and windows: 1. The decorative surface of doors and windows should not have obvious damage (such as: the protective film on the surface of doors and windows should not be scratched).  2. There should be no obvious color difference on the colored surface of adjacent components on doors and windows.  3. There should be no aluminum chips, burrs, oil spots or other stains on the surface of doors and windows, and there should be no spilled adhesive at the assembly joints.   Three look at the price. Generally, high-quality aluminum alloy doors and windows are about 30% more expensive than inferior aluminum alloy doors and windows due to high production costs. Do not make aluminum alloy doors and windows with wall thickness less than 1.2mm. The tensile strength and yield strength are not up to the standard, and it is not safe to use. In addition, there are many small workshops that process aluminum alloy doors and windows, and they don't understand the structural characteristics and performance of aluminum alloy doors and windows. In order to reduce costs, cutting corners and shoddy materials are used. The hidden danger of the product is relatively large, and it is generally not suitable for use. It is best to choose products from regular manufacturers of aluminum alloy doors and windows.
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