The fundamental cause of outdoor oxidation corrosion of industrial aluminum profiles
After oxidation, the surface of industrial aluminum profiles has a very beautiful appearance and is resistant to dirt. Once coated with oil, it is very easy to clean. When assembling products, different specifications of profiles are used according to different load-bearing capacities, and matching aluminum profile accessories are used, which do not require welding and are more environmentally friendly. In addition, installation and disassembly are lightweight, easy to carry, and extremely convenient to move. The fundamental cause of outdoor oxidation and corrosion of industrial aluminum profiles.
1. The raw materials used to produce aluminum profiles contain impurities exceeding the standard. The raw materials used to produce aluminum profiles are aluminum rods, and the quality of aluminum rods also affects the corrosion resistance of aluminum profiles. Some low-quality aluminum rods are melted from scrap aluminum and even intentionally added with some low-priced metals. This leads to a significant discount in the corrosion resistance of industrial aluminum profiles produced, and the color is also different from normal aluminum profiles. So when purchasing industrial aluminum profiles, those with darker colors cannot be purchased.
2. The film thickness of industrial aluminum profiles does not meet the requirements during oxidation treatment. After anodizing, a hard oxide film will form on the surface of industrial aluminum profiles, which can effectively block the aluminum substrate and air, and reduce corrosion. The oxide film thickness of industrial aluminum profiles is generally 10 μ. If used outdoors, the oxide film thickness needs to be increased.
3. During the deep processing of industrial aluminum profiles, the accuracy does not meet the requirements, and the assembly gap is large. The parts that need to be assembled after bonding are not coated with sealing materials and are directly assembled. Due to the lack of oxide film protection on the sawn surface of industrial aluminum profiles, they are easily corroded when exposed to the outside.
4. The structural strength and rigidity of aluminum profiles fail to meet the wind pressure resistance requirements of the location where aluminum profiles are used, resulting in severe plastic deformation, cracking, or damage to the aluminum profile’s load-bearing members, hardware accessories, seals, and bonding materials under normal wind loads, leading to the failure of the aluminum profile’s sealing and the occurrence of sun exposure oxidation. The reason is that the product was not properly calculated and designed according to specifications, and did not pass the physical performance test for wind resistance before production and installation
The above is the fundamental reason for outdoor oxidation and corrosion of industrial aluminum profiles, hoping to be helpful to you. In addition, industrial aluminum profiles are mostly developed based on the existing needs of users. Some industries have strong development capabilities, such as rail vehicle manufacturing, automobile manufacturing, etc. If you have any other questions about industrial aluminum profiles, feel free to call for consultation. The editor is dedicated to serving you.
