Metallic foil manufacturing method and cathode for manufacturing metallic foil
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United States of America Patent
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Jan 26, 2021
Grant Date -
Nov 26, 2020
app pub date -
Oct 30, 2017
filing date -
Jan 25, 2017
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Abstract
Provided are a metallic foil manufacturing method in which a metallic film electrodeposited by electrolysis on the surface of an electrodeposition surface of a cathode is peeled off to form a metallic foil, and the electrodeposition surface used therein is obtained by subjecting a roughened surface, which results from roughening a smoothed surface made of titanium or titanium alloy using a blast treatment, etc., to an oxidation treatment selected from thermal oxidation, anodic oxidation (preferably anodic oxidation carried out while moving the anodic oxidation solution), or a combination treatment of thermal oxidation and anodic oxidation so that the electrodeposition surface has an oxidation layer with a thickness of 30 to 250 nm on the uppermost layer and has a surface roughness RZJIS of 4 to 10 μm.
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