Anodicoxidation: The electrochemical oxidation of metals or alloys. The process by which aluminum and its alloys, under the influence of an external current and in the presence of the corresponding electrolyte and specific processing conditions, form an oxide film on the aluminum products (anode). If not specifically specified, anodic oxidation usually refers to sulfuric acid anodic oxidation.
To overcome the defects in hardness, wear resistance, etc. of the aluminum alloy surface, and to expand the application range and extend the service life, surface treatment technology has become an indispensable part in the use of aluminum alloys. And anodic oxidation technology is currently widely used and successful.
The so-called anodic oxidation of aluminum is an electrolytic oxidation process. In this process, the surface of aluminum and aluminum alloys is usually transformed into an oxide film, which has protective, decorative and some other functional characteristics. From this definition, anodic oxidation of aluminum only includes the process of generating the anodic oxide film.
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