What Is The Specific Function Of Anodizing Aluminum
Nov 04, 2022
In order to overcome the defects of aluminum alloy surface hardness and wear resistance, expand the application range and prolong the service life, surface treatment technology has become an indispensable link in the use of aluminum alloy. Metal oxide film changes the surface state and performance, such as surface coloring, improve corrosion resistance, enhance wear resistance and hardness, protect the metal surface and so on.
Generally speaking, the anode is made of aluminum or aluminum alloy as the anode, the cathode is the choice of lead plate, the aluminum and lead plate together in aqueous solution, which contains sulfuric acid, oxalic acid, chromic acid, etc., for electrolysis, so that the surface of the aluminum and lead plate forms an oxide film. Anodizing, if not specified, usually refers to the anodizing of sulfuric acid.
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