Aluminum alloy doors and windows are more and more popular among families, and of course it is also a problem we have chosen. Doors and windows are a family safety guarantee. How to choose the quality of aluminum alloy doors and windows that you are satisfied with in the crowded products, Xiaobian teaches you three tricks. First, look at the price Under normal circumstances, high-quality aluminum alloy doors and windows due to high production costs, the price is about 30% higher than inferior aluminum alloy doors and windows. Some aluminum alloy doors and windows made of aluminum profiles with a wall thickness of only 0.6-0.8 mm have a tensile strength and yield strength that are much lower than the national standards and are not safe to use. In addition, there are many self-employed households who process aluminum alloy doors and windows. They do not understand the structural characteristics and performance of aluminum alloy doors and windows. In order to reduce costs, cut corners, shoddy, and product hazards are large, generally not suitable. It is best to use the products of regular aluminum alloy door and window manufacturers. Second, look at processing High-quality aluminum alloy doors and windows, fine processing, exquisite installation, good sealing performance, and easy to switch. Inferior aluminum alloy doors and windows, blindly selected aluminum profiles and specifications, processing rough and shoddy, sawing instead of milling, not installed according to requirements, poor sealing performance, switch is not free, not only leaking wind and rain and glass burst phenomenon, but also encountered When it comes to strong winds and external forces, it is easy to scrape or knock down the push-pull parts or the glass, causing damage to people. Third, look at the materials The aluminum profiles used for high-quality aluminum alloy doors and windows, thickness, strength and oxide film, etc., shall comply with the relevant national standards, the wall thickness shall be above 1.2 mm, the tensile strength shall be 157 Newtons per square meter, and the yield strength shall be With a square millimeter of 108 Newtons, the oxide film should be 10 microns thick. If the above standards are not met, it is inferior aluminum alloy doors and windows, which cannot be used. Fourth, look at the material in the material material mainly has six aspects can refer to: 1. Chroma: The color of the same aluminum alloy profile should be consistent. If the color difference is obvious, it is not suitable for purchase. 2. Thickness: There are 70 series and 90 series of aluminum alloy sliding doors. The 70 series of aluminum sliding doors in the house can be used. The number of series indicates the number of millimeters of the thickness of the door frame. Aluminum alloy sliding windows are available in 55 series, 60 series, 70 series and 90 series. The selection of the series should be based on the size of the window and the local wind pressure. The aluminum alloy sliding window used as a closed balcony should be no less than the 70 series. 3. Strength: The tensile strength should be 157 Newtons per square meter and the yield strength should be 108 Newtons per square millimeter. When purchasing, you can use your hand to bend the profile moderately, and you should be able to recover after loosening your hand. 4. Gloss: Aluminum alloy doors and windows avoid the appearance of open air bubbles (white spots) and ash (black spots), as well as cracks, burrs, peeling and other obvious defects. 5. Oxidation degree: The thickness of the oxide film should reach 10 microns. When you purchase, you can scratch the surface of the profile to see if the oxide film on the surface can be wiped off. 6. Flatness: Check the surface of the aluminum alloy profile without any depression or bulging. Nylon Bulge Anchor Nylon Bulge Anchor Hebei Qianmu Fastener Manufacturing Co., Ltd , https://www.qmjgjfasteners.com