What are the benefits of anodizing the surface of aluminum alloy

After the aluminum alloy is anodized, the adsorption capacity, heat insulation and heat resistance, corrosion resistance and insulation performance of the aluminum alloy will be enhanced.

Anodizing refers to a material protection technology in which aluminum alloy forms an oxide film on its surface by applying anodic current in an electrolyte solution. Also known as surface anodizing. The anodizing of aluminum is generally carried out in an acidic electrolyte, with aluminum as the anode. In the electrolysis process, the anion of oxygen reacts with aluminum to form an oxide film. This kind of film is not dense enough when it is first formed. Although it has a certain resistance, the negative oxygen ions in the electrolyte can still reach the aluminum surface and continue to form an oxide film.

When the speed of oxide formation on the aluminum surface is gradually balanced with the speed of chemical dissolution, the oxide film can reach a larger thickness under the electrolytic parameters. The outer layer of the anodizing film of aluminum is porous, and it is easy to absorb dyes and colored substances, so it can be dyed to improve its decoration. After the oxide film is sealed with hot water, high temperature water vapor or nickel salt, its corrosion resistance and wear resistance can be further improved.ter vapor or nickel salt, its corrosion resistance and wear resistance can be further improved.