Device for continuously electrodepositing with high current density, a coating metal on a metal sheet
AssigneeCockerill
InventorRene Winand
Life of this patent
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Abstract
There is described a method for continuously electrodepositing with high current density, a coating metal on a metal sheet, which comprises moving by means of a movable cathode the metal sheet pressed thereagainst, in front of an anode inside a zone that comprises an electrolyte for transferring the coating metal, in which the cathode current is distributed uniformly over that portion of the metal sheet which moves in the area for metal transfer to the cathode in such a way as to cause a current density which is substantially equal in every point of said sheet portion.
Claims21
Device for continuously electro-depositing, under high current density, a coating metal on a metal sheet, comprising a substantially horizontal plane fixed anode and a movable cathode, said cathode cooperating with a carthodic current supply and having an electrically-conducting wall which is movable with a substantially constant spacing relative to the anode inside a zone where can flow an electrolyte in substantially the same direction through the entire transfer zone between the anode and the cathode and substantially in a parallel direction to the anode for transferring a coating metal to the sheet, an electrolyte inlet at one end and an electrolyte outlet at the opposite end of said zone, the cathodic current supply comprising a series of contacts which are connected in parallel and distributed substantially uniform over the surface of said conducting wall removed from its surface facing the anode.
Device for continuously electrodepositing, under high current density, a coating metal on a metal sheet, comprising
- an elongated fixed anode having a substantially horizontal face;
- a movable cathode having an electrically-conducting wall movable with a substantially constant spacing relative to said horizontal face of said elongated fixed anode, an elongated zone of substantially constant thickness being defined between said substantially horizonatl face of said fixed anode and said electrically-conducting wall of said movable cathode, said zone having first and second ends;
- means to flow an electrolyte in substantially a single direction through the zone of substantially constant thickness between said face of said fixed anode and said electrically conducting wall of said movable cathode, whereby the direction of flow of the elecrolyte is substantially parallel to said face of said fixed anode from one end of said zone to the other end thereof;
- means for feeding a metal sheet through the zone and in contact with said electrically-conducting wall of said movable cathode;
- and
- means for supplying said movable cathode with current, said means comprising a series of contacts connected in parallel and distributed substantially uniformly against a wall of said movable cathode which is opposite said electrically-conducting wall.
Dependencies are inferred from the claim text.