SN-NI ALLOY BRILLIANT PLATING SOLUTION

摘要

This invention is related to bright tin-nickel alloy plating electrolyte. An aq. main plating liquid is provided containing 200 g/l of potassium pyrophosphate, 30 g/l of stannous pyrophosphate and 50 g/l of nickel pyrophosphate. Such main plating liquid has added to 10 g/l of peptone, so that the PH of the resulting electrolyte may be adjusted to a value of 9.5. The electrolyte is subjected to mechanical agitation at 35≦̸C with a carbon anode and a brass plate plated with a bright nickel layer as a cathod.