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Ted Mooney, P.E. RET
Pine Beach, NJ
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for Metal Finishing since 1989
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How to do non cyanide copper silver alloy plating
I wish to electroform copper with trace amounts (up to 1%) silver without resorting to cyanide formulations. I have tried pyrophosphate but unless all traces of orthophosphate and chloride are removed it is impossible to get the silver into solution as it immediately precipitates out. Essentially I need a copper plating solution which can dissolve trace amounts of silver. Can anyone help?
Background: - My company has successfully electroformed copper on a large scale for 35 years. The next generation of product requires an improvement in the creep resistance of the copper and this is already achieved commercially (in cast, rolled or drawn copper) by the addition of traces of silver.
Development Engineer - Dolgellau Gwynedd United Kingdom
December 31, 2010
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