Method and procedure for pre plating processing of sheet metal products
The purpose is to obtain a clean and fresh metal
surface, to prepare for the final high quality coating, mainly for the removal
of rust, rust, dust and other work
Pre plating process:
The surface
roughness can reach a certain requirement, through the surface polishing,
mechanical polishing, sandblasting, degreasing, rust and other methods to
achieve
Degreasing, using solvent and chemical and electrochemical methods to
achieve
Derusting, derusting pickling and available mechanical,
electrochemical method
Activation treatment, the general erosion of a certain
time in a certain time before the activation of the plating
treatment;
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