Patent ID: 8246809
Filing Date: 2012-08-21
Classification: C25D

Abstract:
1. A method to continuously deposit a metal or metal alloy coating on an electrically conductive substrate, said method comprising the steps of: providing an apparatus comprising at least one plating vessel for receiving an electrolyte solution and at least one plating unit, said at least one plating unit comprising a first zone comprising at least one first electrode connected to a positive pole of a power supply, a second zone comprising at least one second electrode connected to a negative pole of the power supply and at least one intermediate zone between said first zone and said second zone, said intermediate zone separating said first zone from said second zone by a predetermined distance that is larger than zero; and passing said electrically conductive substrate through said at least one plating vessel in a predetermined direction to deposit said metal or metal alloy coating on said electrically conductive substrate, wherein said substrate passes consecutively said first zone, said intermediate zone and said second zone, and wherein said substrate when facing said first electrode is functioning as a cathode having a current density Jc and said substrate when facing said second electrode is functioning as an anode having a current density Ja, said current density Ja being larger than said current density Jc.