What are the "large oxidation" and "small oxidation" of aluminum profile
2020-08-17
Anodizing of aluminum profile refers to the process of forming an oxide film on the aluminum product (anode) due to the action of the applied current under the corresponding electrolyte and specific process conditions. If anodizing is not specified, it usually refers to sulfuric acid anodizing. Anodizing of aluminum profiles is usually divided into two situations. In layman's terms, "small oxidation" and "large oxidation", these two appear in the dialogue between many profile manufacturers and customers. What is "small oxidation" and what is " "Great Oxidation" Let's briefly introduce below:
The small oxidation of the profile is oxidation after the aluminum profile is processed. After the aluminum profile is anodized, all the cut and processed surfaces of the profile have an oxide layer, and the large oxidation of the aluminum profile is after we extrude it. The whole profile is directly put into the oxidation tank for oxidation, but the surface layer of the aluminum profile after cutting or processing and the surface layer of the processed hole are free of the oxide layer. That is to say, if you need an oxide film on every exposed surface of the aluminum profile, you must choose "small oxidation". If you only require the appearance part, then choose "large oxidation". At present, people on the market "Big oxidation" is more common.
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