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Pre- and post-treatment of metal surfaces

2018/08/17

The process of forming a metal or non-metal conversion film on the surface of a metal part by chemical treatment is called metal surface treatment. The surface-treated products not only make them have good anti-corrosion performance, but also have a striking decorative effect. Some surface properties have been greatly improved, so they are widely used in automobile manufacturing, machining, hardware tools, metal products, Home appliances, stamping and drawing industries. Metal surface treatment is generally divided into two parts: pre-treatment and post-treatment.

Metal surface preparation includes:

Degreasing (degreasing), derusting (pickling), surface conditioning, phosphating, drying and other processes.

Metal surface post-treatment includes:

Passivation, oil sealing, blackening (blue), plating, painting and other processes.

Metal surface coating includes:

Spray paint, electrophoretic paint, powder electrostatic spray, baking paint, etc.

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