How to better handle zinc alloy surface?

Zinc alloy surface treatment after the die-casting molding, polishing work is required, make zinc alloy die casting surface more smooth, deli**e, good-looking, but after polishing, zinc alloy die casting products surface treatment. Without surface treatment, zinc aluminum alloy will gradually be o**dation surface treatment of die casting, also has lost its original zinc alloy is smooth, exquisite burnish, zinc alloy surface treatment **monly used three kinds of methods: electroplating, metal plating, paint.

Electroplating surface treatment of zinc alloy die casting is one of the most **monly used zinc alloy treatment technology. Zinc alloy electroplating process is used for nickel plating on copper bottom plating and then treated with chromium. In addition, zinc alloy castings can be directly plated with chromium to improve the hardness and wear resistance of castings, reduce the friction factor and improve the corrosion resistance.

The surface treatment of zinc alloy die casting is a thin layer of metal coating on the surface of the treated parts under high vacuum. The zinc alloy die casting process can simulate the appearance of copper, si**er, brass and gold, which is used in die casting. If the skim coat can cover the surface defects, the workpiece should not be polished. After baking, the aluminum vapor will be deposited on the parts to form a thin film. After the second spray varnish, after baking to the si**er-white paint, can be dyed any color.

The surface of zinc aluminum alloy is treated by surface coating, and the pre-painted workpiece usually needs to be treated with phosphate or chromate solution. For some cheaper parts, use acrylic paint with weak adhesion and acid corrosion **ponents. For parts with high corrosion resistance, it is best to use epoxy resin paint or various amino group paints, and then bake them. Zinc alloys can be coated with various paints.