| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrodeposition drum, which hardly generates hot spots even when passing a large current, can produce a metallic foil of high quality and uniform foil thickness, and has a satisfactory electrification efficiency. SOLUTION: This electrodeposition drum is provided by arranging a metal sheet 3 between an inner drum 1 and an outer ring 2 of titanium, which is softer and has higher electric conductivity and thermal expansion coefficient than the outer ring 2 and the inner drum 1, and forming many projections 4 with height equal to or higher than their diameter, on the contacting surface of the metal sheet 3 with the inner surface of the outer ring 2, so as to always adhere to the inner surface of the outer ring 2 and follow the rotation of the ring.
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