HIGH SPEED ELECTROLYTIC DEFATTING DEVICE OF DIPPING TYPE

摘要

PURPOSE:To perform electrolytic defatting in continuous plating in a short time, by providing an electrode bar to the preceding end of a piston rod provided on one side plate of an electrolytic defatting cell and placing an injection pipe for a defatting soln. so as to face the same. CONSTITUTION:When a sub-table 2 turns and a blank material C3 such as a connecting rod is indexed to the inside of an electrolytic defatting cell A3, cylinders 56, 61 operate to move the preceding end of an electrode bar 54 into the fitting hole (a) of the material C3, and an electrode disc 68 contacts with a shaft bar 11 which is the large diameter part of the material C3. In succession, a defatting soln. is fed from a piping 70 into an injection pipe 53, and is injected toward the hole (a). At the same time, the controlled current flows between the bar 54 and the hole (a), and the hole (a) at the bottom end of the material C3 is defatted electrolytically at a high speed while held dipped in the defatting soln. The electrolytic defatting time is reduced to half or below the time in the prior art by the above-mentioned device.