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The surface treatment technology of magnesium alloy has […]
The surface treatment technology of magnesium alloy has the latest development, its surface is relatively active, and the surface generally has a layer of oxide. The surface treatment technology of magnesium alloy has the latest development, its surface is relatively active, and the surface generally has a layer of oxide. Therefore, the surface treatment of magnesium alloy is difficult. Special treatment methods must be used. The existing surface treatment technology is not yet mature, often making the alloy surface very rough, and using a large amount of non-environmental chemicals.
In recent years, the advanced surface treatment technology of magnesium alloy has made new developments. Technologies developed include electroplating, conversion coating and anodizing. The surface treatment of magnesium alloy is mainly to improve the appearance of the product and improve the wear resistance and corrosion resistance.
Decorate the surface to form a protective layer to prevent the magnesium alloy from being exposed to the air; fill and modify the holes on the surface of the die casting; increase the bonding force between the magnesium alloy matrix and the organic coating; improve the wear resistance; isolate the magnesium alloy and others Contact between metals to prevent electrochemical corrosion.
When choosing a suitable surface treatment process, first consider the needs of the product, such as the magnesium alloy material selected for the components such as surface conductivity, wear resistance, and product use environment. Magnesium alloy surface treatment technology is aimed at the above points.