Electroplating equipment & Post-treatment
Author: Marisa
What is the process flow of electroplating equipment?
3. Electroplating equipment
(1) Hanger: Square hanger is used with square plating tank, and round hanger is used with round plating tank. Round plating tank and hanging device are more conducive to ensuring uniform current distribution. Square hanger needs to add a dispersed current device around the hanging device, such as wire mesh or shorten the length of the anode plates on both sides, and use an elliptical anode arrangement, as shown in the figure.
(2) Stirring device: promote solution flow, make the solution state evenly distributed, and eliminate bubbles staying on the surface of the workpiece
(3) Power supply: DC, good stability, small ripple coefficient.
III. Post-treatment
In order to enhance the various properties of the coating, such as corrosion resistance, anti-discoloration ability, weldability, etc., the coating is subjected to a variety of treatments.
Dehydration treatment: Add dehydrating agent to water, such as bright nickel plating post-treatment
Passivation treatment: Improve the corrosion resistance of the coating, such as zinc plating
Anti-discoloration treatment: Add anti-discoloration agent to water, such as silver plating, tin plating, imitation gold plating, etc., to improve the welding processing ability: such as tin plating.
Therefore, the quality of the post-treatment process directly affects the quality of these functions.