Patent ID: 9133561
Filing Date: 2015-09-15
Classification: B41C,C25D

Abstract:
1. A plating method for a cylinder, comprising: holding a long cylinder at both ends in a longitudinal direction; accommodating the long cylinder in a plating bath filled with a plating solution; energizing the long cylinder so that the long cylinder functions as a cathode while rotating the long cylinder at a predetermined speed; bringing a pair of opposed insoluble electrodes close to both side surfaces of the long cylinder with a predetermined interval, the pair of opposed insoluble electrodes being vertically installed so as to face both the side surfaces of the long cylinder in the plating bath and supplied with a predetermined current; and performing plating on an outer peripheral surface of the long cylinder, the pair of opposed insoluble electrodes having a shape in which a lower part thereof is curved inward, said lower part comprising an upper end, said pair of opposed insoluble electrodes being mounted for movement such that said lower part rotates about said upper end, wherein a thickness of a plating layer on the outer peripheral surface of the long cylinder is adjusted by controlling an interval of closeness to the long cylinder.