The surface treatment of zamak die casting mobile phone shell

   The surface treatment of the zamak die casting mobile phone shell, the more mature method has these:
   Galvanic plating: galvanic plating trivalent chromium white bright surface, galvanic plating trivalent chromium black bright surface, galvanic plating imitation titanium bright surface. These colors can also be made of fog surface effect by sand blasting and pearl sand. (The machining allowance for galvanic plating is 0.07mm per surface).
   Vacuum plating(PVD): after the galvanic plating as a base you can do the vacuum plating of these colors, such as IP black, IP gold. At present, the vacuum plating of these two colors is relatively stable, and other colors need UV protection layer.
   Spray: a lot of color can be sprayed on the zamak die casting compared with the plating. The common color all can be used for zamak die casting mobile phone shell. (For battery cover baking varnish, if the battery cover surface has the pattern or pastes the piece, should pay attention to the phenomenon of oil accumulation.  The machining allowance for spray paint is 0.06mm per surface.)

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