What are the 'large oxidation' and 'small oxidation' of aluminum profiles

by:Zeyi     2021-06-16
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, they are 'small oxidation' and 'large oxidation'. The two appear in the dialogues between many profile manufacturers and customers. What is 'small oxidation' and what is ' 'Large oxidation' Let’s briefly introduce the following: the small oxidation of aluminum profile is an oxidation that is done 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. The large oxidation of aluminum profile is the oxidation that we directly put the entire profile into the oxidation tank after we extrude it, but the surface layer of the aluminum profile after cutting or processing and the surface layer of the processed hole are free of oxide layer. That is to say, if you need an oxide film on every exposed surface of the aluminum profile, then you must choose 'small oxidation'. If you only require the appearance part to have requirements, then choose 'large oxidation'. At present, people on the market 'Big Oxidation' applications are more common. The above is an introduction to some knowledge about the anodizing of aluminum profiles, and I hope to teach and discuss with you.
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