Method and apparatus for applying surface treatment to metal...

C - Chemistry – Metallurgy – 25 – D

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C25D 5/04 (2006.01) C25D 7/06 (2006.01) H05K 3/38 (2006.01)

Patent

CA 2054374

ABSTRACT An apparatus for applying a surface treatment to a metal foil comprising a drum rotatable about a generally horizontal axis for guiding a continuous metal foil about a predetermined path; anode means adapted to contain electrolyte solution, the anode means having a smooth, generally upward facing anode surface defining a cylindrical cavity, which cavity is dimensioned to surround a portion of the drum and to define an annular gap between the smooth surface and the drum, a predetermined portion of the predetermined path of the metal foil extending through the gap; inlet means for creating a continuous flow of electrolyte through the gap; and power means connected to the foil and the anode to create an electrical potential across the foil and smooth surface of the anode means. GD9811USS

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