Anodizing, the chemical oxidation of a metal or alloy. The process by which an oxide film is formed on aluminum products (anodes) by the action of an applied current under the appropriate electrolyte and specific process conditions for aluminum and its alloys. Anodizing usually refers to sulfuric acid anodizing if not specifically indicated.
Anodizing is carried out under the condition of high voltage electricity, which is an electrochemical reaction process; while conductive oxidation (also called chemical oxidation) does not require electricity, just soak in the potion, it is a pure chemical reaction.
Anodizing takes a long time, often tens of minutes, while conductive oxidation takes only a few dozen seconds.
Anodizing generates a film of several microns to dozens of microns, and hard and wear-resistant; conductive oxidation generates a film of only 0.01-0.15 microns, wear resistance is not very good, but both conductive and resistant to atmospheric corrosion, which is its advantage.
Oxide film is originally non-conductive, but because the conductive oxidation generated film is very thin, so it is conductive.
1. Improved corrosion resistance: Anodizing forms an oxide layer on the surface of the metal which acts as a barrier, protecting the metal from exposure to corrosive elements.
2. Increased surface hardness: Anodizing also increases the surface hardness of the metal, making it more resistant to abrasion and wear.
3. Improved aesthetics: Anodizing creates a uniform and attractive finish on the metal which can improve the appearance of the part.
4. Reduced friction: Anodizing can reduce friction between components by creating a smoother surface.
5. Low maintenance: Anodizing is a durable process that requires little maintenance.
6. Cost-effective: Anodizing is a cost-effective method of improving the performance and appearance of metal parts.
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