The electroplating process is a method of laying a layer of metal on a conductive body using the principle of electrolysis. Electroplating is a surface processing method in which the cations of the pre-plated metal are deposited on the surface of the base metal by electrolysis in a salt solution containing pre-plated metal, with the plated base metal as the cathode, to form a coating.
There should be good bonding between the plating and the base metal, and between the plating and the plating.
The plating should be crystalline, flat and of uniform thickness.
The plating layer should have the specified thickness and as few pores as possible.
The plating should have the required indicators, such as brightness, hardness, conductivity, etc.
The plating time and the temperature of the plating process determine the size of the thickness of the plating.
The ambient temperature is -10℃~60℃;
The input voltage is 220V±22V or 380V±38V;
The maximum working noise of the water treatment equipment should be no more than 80dB(A).
Relative humidity (RH) should be no more than 95%;
Raw water COD content is 100mg/L~150000mg/L.
It generally includes three stages: pre-treatment before plating, plating and post-plating treatment.
Complete process: 1, acid immersion → full plate plating
copper → graphic transfer → acid degreasing → secondary counter-current rinsing → micro-etching → secondary → immersion acid → tin plating → secondary counter-current rinsing 2, counter-current rinsing → immersion acid → graphic plating copper → secondary counter-current rinsing → nickel plating → secondary washing → immersion citric acid → gold plating → recycling → 2-3 level pure water washing → drying
Plastic shell plating process
Chemical degreasing - water washing - dip acetone - water washing - chemical roughing water washing sensitization - water washing - activation - reduction - chemical copper plating - water washing bright sulfate copper plating - water washing - bright sulfate nickel plating - water washing - bright chromium plating - water washing drying for inspection.
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