Chongqing industrial aluminum profile anodizing factory has chosen to create aluminum industry, which is a direct selling industrial aluminum profile anodizing enterprise in Chongqing. Anodizing is a widely used processing method in Chongqing industrial aluminum profile industry, which is highly respected by local enterprises. So, why is this?
The purpose of adopting anodic oxidation process for industrial aluminum profiles is to prevent corrosion or achieve the dual purpose of protection and decoration, such as being used as wear-resistant layer, electrical insulation layer, painting bottom layer and electroplating bottom layer.
Protective-decorative products: For most industrial aluminum profiles and their alloy products requiring surface finishing, after chemical or electrochemical polishing, anodic oxidation with sulfuric acid solution can obtain an oxide film with high transparency. This kind of oxide film can absorb many kinds of organic dyes and inorganic dyes, so it has various bright colors. This color film is both an anti-corrosion layer and a decorative layer. Under some special technological conditions, a protective and decorative oxide film similar in appearance to porcelain can also be obtained.
Corrosion prevention: Because the film obtained by anodic oxidation has enough stability in the atmosphere, the oxide film on the surface of industrial aluminum profile can be used as a protective layer. The oxide film obtained by anodic oxidation of industrial aluminum profiles in chromic acid solution is dense and has good corrosion resistance. The pores of the oxide film obtained from sulfuric acid solution are larger than the former, but the film layer is thicker and has strong adsorption capacity. If it is properly filled and sealed, its corrosion resistance is also good. In particular, chromic acid anodizing method is especially suitable for anodizing of riveted parts and welded parts.
As a hard wear-resistant layer, a thick and hard Al2O3 film can be obtained on the surface of industrial aluminum profiles and aluminum alloys by hard anodic oxidation. This film not only has high hardness and thickness, but also has low roughness. In sulfuric acid or oxalic acid solution, hard and thick oxide film can also be obtained on industrial aluminum profile products by anodic oxidation. Porous thick oxide film can store lubricating oil, so it can be effectively applied to industrial aluminum profile products working in friction state, such as engine cylinders and pistons of automobiles and tractors, and its wear resistance can be greatly improved after anodic oxidation.
As electrical insulation layer: The oxide film obtained by anodic oxidation of industrial aluminum profiles and aluminum alloy products has a large resistance, so it has a certain effect on improving the electrical insulation of some products. The dielectric layer of capacitors can be prepared by anodic oxidation, and the insulation layer can also be prepared by oxidizing industrial aluminum profiles.
As the bottom layer of painting: Because of the porosity and good adsorption capacity of anodic oxide film, it can be used as the bottom layer of painting and other organic films, so that the paint film and organic film can be firmly combined with the product, thus increasing its corrosion resistance.
Chongqing industrial aluminum profiles are basically anodized, so the benefits are very obvious. It not only saves a lot of unnecessary processing time of manufacturers, but also is excellent in corrosion resistance and prolongs the service life.
Post time: Oct-07-2023