JPS6417887A - Rotary electrocasting device - Google Patents

Abstract

PURPOSE:To easily carry out electrocasting with excellent efficiency, uniformity, and mass productivity by the use of the title miniaturized device by rotating a freely attachable/detachable rotary cathode held by a cathode holder through a driving shaft in an electrocasting cell, and simultaneously impressing a voltage between the cathode and a counter anode which is vertically held in parallel with the cathode. CONSTITUTION:The rotary cathode 3 (e.g., a compact disk mold master disk) made automatically attachable and detachable and capable of being rotated through the driving shaft 12 and a cathode mounting substrate 2 is held by the cathode holder 4 in the electrocasting cell 1, and the counter anode 6 is vertically set in parallel with the cathode 3 with a shielding plate 5 in between. The rotary cathode 3 is then rotated by a motor 13 through the driving shaft 12, the electrocasting soln. consisting essentially of liq. nickel sulfamate, etc., in a preparation tank 9 is supplied toward the center of the rotary cathode 3 and circulated, a voltage is simultaneously impressed between both electrodes 3 and 6, and Ni is electrocast on the surface of the rotary cathode 3.