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China Aluminum Die Casting Products Can Not Be Oxidized
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At present, China Aluminum Die Casting Products are widely used, and people have stricter requirements on the quality and appearance of the products. The products after oxidation treatment are very beautiful in appearance, so many customers don't understand why aluminum die casting products can't be oxidized.
To put it bluntly, the anodic treatment of aluminum is the whole process of air oxidation by electrolysis. In the whole process, the surface layers of aluminum and aluminum alloy profiles are generally converted into layers of air oxide films, which have defensive, decorative art and some other functions. The anodic treatment of aluminum from this definition only includes the whole process of converting into anodic treatment film.
Aluminum die casting products usually have high silicon water content in casting and casting parts. Even if ht412 special ash remover for die casting aluminum is applied, the anodized film will be dark brown, and it is impossible to obtain a colorless and transparent air oxide film. With the increase of silicon water content, the color of anodized film will change from light gray to dark gray to gray black. Therefore, aluminum alloy casting is not suitable for traditional anodic treatment.
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