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The purpose and significance of oxidation
Jan 24, 2018

The aluminum alloy surface is very easy to produce a thin layer of alumina film (0.01-0.02um), and has a certain corrosion resistance.

But because this layer of oxide film is amorphous, the surface of the aluminum piece loses its original luster.

In addition, the oxide film is porous, nonuniform, and its corrosion resistance is not strong, and it is easy to stain stains.

Therefore, Aluminum Alloy products are usually special oxidation treatment, prior to oxidation treatment, the necessary cleaning of the surface by chemical and physical methods, which exposed the pure metal substrate, in order to facilitate the smooth oxidation coloring, which combined firmly with the substrate, color and thickness will meet the requirements with artificial membrane the good performance of the best corrosion resistance and wear resistance etc.

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