Aluminum alloy die casting can not be oxidized .aluminium alloys for pressure die casting

　　At present, aluminum alloy die casting is very widely used, and people's demand for the quality and appearance of the product itself is more strict, the appearance of the product after oxidation treatment is very beautiful, so many customers do not understand why aluminum die casting can not be oxidized, so today to answer your question!

　　In this process, the surface layer of aluminum and aluminum alloy profiles is generally converted into layers of air oxide film, which has defensive, decorative art and some other characteristics. The anodizing of aluminum from this definition only includes the whole process of conversion into anodized film.

　　Aluminum alloy casting and casting parts usually have a high silicon water content, even if the application of ht412 die-cast aluminum special ash removal agent, the anodized film will be dark brown, can not obtain no color transparent air oxide film, with the increase in silicon water content, the anodized film tone from light gray to dark gray until gray black. Therefore, aluminum alloy casting is not suitable for traditional anodic treatment.

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