Patent ID: 9045836
Filing Date: 2015-06-02
Classification: C25B,H05K

Abstract:
1. An electrolytic regeneration device for electrolyzing and regenerating a treatment liquid used in a desmearing treatment in a desmearing treatment tank, comprising: a regeneration unit including a tubular portion having an inner circumferential surface functioning as a fixed anode and a fixed cathode provided inside the tubular portion and extending along an extension direction of the tubular portion in a state of separation from the inner circumferential surface, the treatment liquid being fed through a gap between the inner circumferential surface of the tubular portion and the cathode; a feed-side conduit connected by a downstream end portion thereof to the tubular portion and guiding the treatment liquid discharged from the desmearing treatment tank into the regeneration unit; and a return-side conduit connected by an upstream end portion thereof to the tubular portion and guiding the treatment liquid discharged from the regeneration unit into the desmearing treatment tank, wherein the tubular portion includes a first pipe having an inner circumferential surface functioning as an anode and a second pipe having an inner circumferential surface functioning as an anode; the cathode includes a first cathode that is provided inside the first pipe and extends along an extension direction of the first pipe in a state of separation from the inner circumferential surface of the first pipe, and a second cathode that is provided inside the second pipe and extends along an extension direction of the second pipe in a state of separation from the inner circumferential surface of the second pipe; the downstream end portion of the feed-side conduit is connected to one end portion of the first pipe, and the other end portion of the first pipe communicates with one end portion of the second pipe; the second pipe is disposed above the first pipe; the regeneration unit further includes a fixed auxiliary anode disposed inside the tubular portion and directly electrically connected to the tubular portion; the auxiliary anode is disposed opposite the cathode in a state of separation from the cathode; the auxiliary anode has a hollow cylindrical shape extending along the cathode so as to surround a circumference of the cathode, and has a plurality of through holes; and the treatment liquid flows to the outer side of the auxiliary anode via the through holes.