What Is The Process Of Metal Electroplating?

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Basic Process

(grinding → polishing) →racking→degrease & oil removal→washing → (electrolytic polishing or chemical polishing) → acid activation → (preplating) → plating → washing → (post-process) → washing→dry→ taking down →Inspecting packing

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The Role Of Pretreatment Process

Pretreatment: all processes before plating are called pretreatment, the purpose is to dress the surface of the workpiece, remove the grease, rust, oxide film on the surface of the workpiece, and provide the required electroplating surface for the subsequent deposition of the coating.

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The Role Of Electroplating Process

Electroplating is getting the required coating on the surface of the workpiece, also is the core process of the electroplating process. The quality of this process directly affects the properties of the coating.

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The Role Of Post-treatment Process

Post-treatment: after electroplating, the coating is processed to enhance the various properties of the coating, such as corrosion resistance, anti-discoloration ability, solderability, etc.

Benefits Of Metal Electroplating

Different effects can be obtained according to various electrodeposits:

1. Copper plating: Base for improving adhesion and corrosion resistance of electroplating.

2. Nickel plating: For base or appearance, improve corrosion resistance and wear resistance.

3. Gold plating: Improve conductive contact impedance, enhance signal transmission.

4. Palladium nickel plating: Improve conductive contact impedance, enhance signal transmission, wear resistance higher than gold.

5. Tin plating: Enhance the welding ability, and have a shielding effect on nitriding.

6. Silver plating: Improve conductive contact impedance, enhance signal transmission.

What is Metal Electroplating？

Electroplating is the method of electrolysis to make metal or alloy deposition on the workpiece surface, in order to form a uniform, dense, good bonding force of the metal layer process.
Electroplating coating is uniform, generally thin, ranging from a few microns to dozens of microns.
Through electroplating, we can obtain decorative protective and various functional surface layers on mechanical products, but also repair wear and processing errors of the workpiece.