Quality Standards For Partition Doors

Take a look at the materials used. The thickness, strength, and oxide film of aluminum profiles used for high-quality aluminum alloy doors and windows should comply with relevant national standards. The wall thickness of the main load-bearing rod of aluminum alloy windows should be above 1.4 millimeters, and the wall thickness of the main load-bearing rod of aluminum alloy doors should be above 2.0 millimeters. The tensile strength should reach 157 Newton per square meter millimeter, the yield strength should reach 108 Newton per square millimeter, and the oxide film thickness should reach 10 micrometers. If the above standards are not met, it is considered inferior aluminum alloy doors and windows and cannot be used.
Second, look at the processing. High quality aluminum alloy doors and windows, finely processed, meticulously installed, with good sealing performance and easy opening and closing. Poor quality aluminum alloy doors and windows, blindly selecting aluminum profile series and specifications, rough processing, using saw cutting instead of milling, not installing according to requirements, poor sealing performance, and difficult opening and closing. Not only are there air and rain leaks and glass bursts, but also when encountering strong winds and external forces, it is easy to scrape or touch the sliding parts or glass, causing damage and injury to people.
Look at the price three times. In general, high-quality aluminum alloy doors and windows are priced around 30% higher than low-quality aluminum alloy doors and windows due to their high production costs. Some aluminum alloy doors and windows made of aluminum profiles with a wall thickness of only 0.6-0.8 millimeters have tensile strength and yield strength significantly lower than the relevant national standards, making their use very unsafe. In addition, there are many individual workers who process aluminum alloy doors and windows, and they do not understand the structural characteristics and performance of aluminum alloy doors and windows. In order to reduce costs by cutting corners and using inferior products as substitutes, it is generally not suitable to use products with significant hidden dangers. It is best to choose products from legitimate aluminum alloy door and window manufacturers. One special point to note here is that the national standard profile thickness is 1.4mm. If the supplier chooses materials with a wall thickness of 1.2mm or 1.0mm or even thinner, they are considered substandard products. Please pay attention when purchasing.