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Characteristics of anodizing process in aluminum alloy shell processing

Update time : 2022-08-24 18:46:51

As is known to all, the aluminum alloy shell in life, and the application of industrial products is very extensive, but in order to make aluminum alloy shell can adapt to an environment or achieve certain functions, enterprise also uses different technology to deal with accordingly aluminum shell surface, such as: anodic oxidation, electroplating, spraying, micro-arc oxidation treatment, etc. Among them, the anodizing process is a kind of process which is very much used in the processing of aluminum alloy shell, so what are the characteristics of the anodizing process in the processing of aluminum alloy shell?

Anodic oxidation refers to the aluminum and its alloy in the corresponding electrolyte and specific process conditions, due to the action of the applied current, on the aluminum product (anode) to form a layer of oxide film process. Anodizing, if not specified, usually refers to sulfuric acid anodizing. In order to overcome the defects of aluminum alloy surface hardness, wear resistance and so on, expand the application scope, prolong the service life, surface treatment technology has become an indispensable part of the use of aluminum alloy, and anodic oxidation technology is a very widely used and very successful process.

Aluminum alloy shell after anodizing will produce a layer of anti-corrosion wear resistant and beautiful oxide film on the surface, the characteristics of the oxide film also stabilize the position of anodizing in the surface treatment process. The aluminum alloy shell is coated with a protective "coat" after anodizing. Because the anodizing film is very stable in the natural environment, it can provide anti-corrosion protection for the aluminum alloy shell. At the same time, the anodic oxidation film has high hardness, low roughness and smooth surface, which greatly improves the wear resistance of the aluminum shell. If various organic and inorganic dyes are added in the anodic oxidation process, the anodic oxidation film has color, which brings beautiful appearance to the aluminum shell.

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