Quality judgment method for aluminum alloy door and window equipment
Author: Broken Bridge Aluminum Door and Window Equipment Manufacturer Time: May 15, 2023 09:57:56 Source: Original
The quality of aluminum alloy door and window equipment can be roughly judged from aspects such as raw material selection, aluminum surface treatment and internal processing quality, and the price of aluminum alloy door and window equipment. Next, the editor will provide a specific introduction on these aspects:
From a material perspective, the thickness, strength, and oxide film of high-quality aluminum alloy door and window equipment should comply with relevant standards. The wall thickness shall be greater than 1.2 mm, the tensile strength shall reach 157 N per square millimetre, the yield strength shall reach 108 N per square millimetre, and the oxide film thickness shall reach 10 microns. If the above standards are not met, it is considered inferior aluminum alloy door and window equipment and cannot be used.
2. Look at the processing. High quality aluminum alloy door and window equipment, finely processed, exquisitely installed, with good sealing performance and convenient opening and closing. Poor quality aluminum alloy door and window equipment blindly selects aluminum profiles and specifications, with rough processing and sawing instead of milling. It is not installed according to requirements, has poor sealing performance, and is not easy to open and close. It not only leaks air and rain, causing glass cracking, but also easily scratches or knocks off sliding parts or glass, damaging things when encountering strong winds and external forces.
3. Look at the price. In general, due to high production costs, the price of high-quality aluminum alloy door and window equipment is about 30% higher than that of low-quality aluminum alloy door and window equipment. Some aluminum alloy door and window equipment made of aluminum profiles with a wall thickness of only 0.6-0.8mm have tensile strength and yield strength far lower than relevant standards, making it unsafe to use. In addition, there are currently many self-employed individuals who process aluminum alloy door and window equipment and do not understand the structural characteristics and performance of aluminum alloy door and window equipment.
At present, the 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 will be considered unqualified products. Please pay attention when purchasing.
Post time: May-26-2023