Patent ID: 6056862
Filing Date: 2000-05-02
Classification: C25D,Y10S

Abstract:
A process for supplying metal ions to a bath for electroplating a nickel alloy or a cobalt alloy, which comprises;transferring spent electroplating solution from a circulation tank to an electrolysis cell which is equipped with a rotatable cathode comprising a metal drum or a metal disk and an anode comprising sulfur-containing metallic nickel or cobalt;electrolyzing the spent electroplating solution in the electrolysis cell to dissolve nickel or cobalt from the anode to form nickel ions or cobalt ions thereby replenishing the solution, and to deposit nickel alloy or cobalt alloy on the cathode;rotating the cathode and continuously removing the deposited nickel alloy or cobalt alloy from the cathode surface; andreturning the electroplating solution replenished with nickel ions or cobalt ions to the circulation tank.