Cathode for copper electrorefining or electrowinning

Details Cathode for copper electrorefining or electrowinning Cathode for copper electrorefining or electrowinning

C - Chemistry, Metallurgy

25

C

C25C 7/02 (2006.01)

Patent

CA 2440150

An improvement to a cathode used in an electrorefining or electrowinning of copper. The cathode has a solid copper head bar (2) with a horizontal groove (6) on its undersurface. The upper edge (9) of a stainless steel flat sheet has several holes (13) along its width and is vertically inserted into the groove. The stainless steel sheet is then mechanically attached to the copper head bar (2) by pressing the copper head bar against the stainless steel at the perforated points along the head bar. To increase the joint strength, the stainless steel sheet may be welded to the copper head bar as its upper edges at the underside of the head bar.

L'invention porte sur une cathode améliorée utilisée pour l'affinage ou la production de cuivre. Ladite cathode comporte: une barre de tête de cuivre massif dont la surface inférieure présente une rainure horizontale; et une tôle plane d'acier inox perforée dans sa largeur de multiples trous, s'insérant verticalement dans la rainure, et fixée mécaniquement dans la barre par une pression de la barre sur la tôle au niveau des points perforés sur sa longueur. Pour améliorer la résistance de la liaison, les bords supérieurs de la tôle peuvent être soudés au côté inférieur de la barre.

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