surface treatment of die cast zinc alloy

The surface treatment of zinc alloy with sandblasting, polishing, plating, painting, electrophoresis etc.. Sand blasting is used to deal with the surface of the zinc alloy casting surface to bite or hemp sand surface effect. Polishing is a mechanical polishing of the surface of the zinc alloy cast into a bright mirror effect. Plating is a copper, chromium, silver, gold and other metal layers, which have a decorative effect on the surface of zinc alloy casting by electrochemical method. Tu makeup is spray paint or varnish. Electrophoretic paint is a charge of the paint, in the electric field, with positive charge or negative charge of the paint will move to the cathode or anode, and in the surface of the film, in the film after drying. ,