Step by step process of gold plating.


Presentation Description

Gold plating is the process of coating the surface of another metal with gold. The process of gold making involves cleaning of surface and final plating process.


Presentation Transcript


THE PROCESS OF GOLD ELECTROPLATING Gold plating is the process of coating the surface of another metal with gold to enhance its appearance. This process is commonly used by goldsmiths for making gold jewellery. The following points will briefly explain how gold plating is done in a step-by-step manner.


SURFACE CLEANING The surface of the base metal used is cleaned of dirt and other surface impurities by using abrasives, solvents, acid cleaners, etc. After this, the surface is inspected for any remaining contaminants.


FINAL PLATING After carefully rinsing with water to remove solvents, a thin strike layer is applied to the base metal. This layer can improve bonding between the base metal and gold plating. The layer prohibits contamination of tanks used in plating process.


SURFACE CLEANING The base metal item is attached to a negatively-charged cathode and is dipped in a positively charged solution containing gold ions. Due to the charge difference, the gold ions are attracted towards the base metal and get applied as a layer on their surface. The plating process can be repeated in multiple cycles to get a smoother finish.

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