Gold plating is a process to cover a metal surface with a thin layer of gold. It is used in many fields, both for improving appearance and for technical purposes.
How Gold Plating Is Done
The most common method is electroplating. The part is immersed in a gold plating solution. When an electric current passes through, gold ions attach to the surface, forming a thin and uniform layer.
Gold Plating Types
Electroless Nickel Immersion Gold (ENIG): First, a layer of nickel is applied without using electricity. Then, gold is deposited by chemical reaction. This plating is widely used in electronics because it provides good contact and corrosion resistance. It is mostly applied on PCBs and connectors.
Application Areas
Electronics: Used on connector pins and contact parts. Gold helps maintain stable signals and prevents oxidation.
Jewelry: It gives the same appearance as real gold but at a lower cost. The gold layer is thin and may wear off with prolonged use.
Decorative Uses: Also used in car interiors, small aircraft parts, and surfaces of high-end products. Gold gives the surface a premium look.
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