Anodic Oxidation
Anodic Oxidation is the electrochemical oxidation of metal or alloy. Under corresponding electrolyte and specific process conditions, aluminum and its alloy forms a layer of oxide film on the aluminium parts (anode) because of the action of impressed current. If not specified, anodic oxidation usually refers to the sulfuric acid anodic oxidation.
In order to overcome the aluminum alloy’s surface hardness and wear resistance of defects, expand the application and prolong service life, surface treatment technology has become an indispensable part of aluminum alloy, and the anode oxidation technology is currently the most widely used and most successful.
Main purpose:
1. Improve the wear, corrosion and weather resistance of parts.
2. The oxide generates transparent film which can be colored to various colorful films.
3. Provide the part with protective, insulative and decorative property
4. Strengthen the adhesion of organic coating.
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