Method and apparatus for electrolytic treatment.

摘要

A method and apparatus for electrolytic treatment employing graphite electrodes wherein an asymmetrical alternating waveform current is applied to the electrodes to subject a metal web to a continuous electrolytic treatment. A graphite electrode in treatment section is arranged confronting the metal web. Two graphite electrodes in current supply sections are arranged respectively upstream and downstream of the graphite electrode in treatment section relative to a direction of movement of the metal web. Two anode electrodes in current supply sections are arranged respectively upstream and downstream of the two graphite electrodes in current supply sections. A part of an asymmetrical alternating waveform current is supplied to the auxiliary anode electrodes so that a current causing an anode reaction on the surfaces of the graphite electrodes is made larger than a current causing a cathode reaction thereon.