Patent ID: 6086731
Filing Date: 2000-07-11
Classification: C25D

Abstract:
A composite plating apparatus for forming a composite plating film on an inner surface of a hollow section of a workpiece which comprises:a cylindrical electrode adapted to be disposed in the hollow section of the workpiece with a surrounding gap left between a surface of an outer wall of said cylindrical electrode and the inner surface of the hollow section, said cylindrical electrode being closed at one of upper and lower ends thereof and having a plurality of through-holes formed across a thickness of the outer wall facing the inner surface of the hollow section;a plating liquid circulating mechanism for supplying composite plating liquid, consisting of ceramic particles mixed in plating liquid, to an interior of said cylindrical electrode, for passing the composite plating liquid through the through-holes of said outer wall to be then jetted onto the inner surface of the hollow section, and for collecting the jetted composite plating liquid from a region surrounding said cylindrical electrode; anda power supply for energizing said workpiece and said cylindrical electrode.