FJY Brush Plating

Conductive properties of silver and application of brush silver plating

 

Among all the metal conductors, silver is the most conductive metal material (conductivity is 6.33×lO7Sm-1at 25 ° C). In the fields of electric power, electrician, electrical appliance and electronics industry, plating silver on copper substrates (copper, aluminum, etc.) can reduce the contact resistance of metal electrical connectors and improve the solderability of silver-plated parts. For large components with local electrical conductivity requirements, brush silver plating is usually used for partial silver plating.

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Two major problems in traditional brush silver plating technology

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• The plating solution is highly toxic. Cyanide (CN-) is used as a silver ion ligand (complexing agent) in the silver plating solution, and the solution is highly toxic.

• In a humid environment, the surface of the silver plated layer is easily discolored (silver-containing sulfur compounds are formed on the surface of the silver layer), and the contact resistance is gradually increased.

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Advantages of FJY series environmentally-friendly cyanide-free brush silver plating technology

 

Since 1992, to meet the requirements of silver-plated products used for different purposes, our company has completed the research and application of large-area cyanide-free brush plating on the surface of titanium, aluminum (aluminum alloy), stainless steel, steel, copper (copper alloy) and other materials. We solved the environmental and safety problems of brush silver plating and also improved the anti-tarnishing ability of the silver plating layer.

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FJY cyanide-free brush plating silver plating technology application example (inexhaustive)

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• Silver plating on titanium surface

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• Silver plating on steel surface

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• Silver plating on copper surface

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• Silver plated aluminum surface

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