초록 ▼

A drum cathode for the production of metal foil, the drum having a titanium top cylinder and a stainless steel base cylinder integrallly connected by welding (1) a niobium or vanadium ring to the top cylinder, (2) a copper ring to the niobium or vanadium ring, and (3) the base cylinder to the copper

A drum cathode for the production of metal foil, the drum having a titanium top cylinder and a stainless steel base cylinder integrallly connected by welding (1) a niobium or vanadium ring to the top cylinder, (2) a copper ring to the niobium or vanadium ring, and (3) the base cylinder to the copper ring, so as to provide a high electric current carrying path between the top and base cylinder. The drum cathode eliminates the formation of “hot spots”during use, while permitting increased electric current flow and foil product rate.

대표청구항 ▼

A process for producing metal foil by electrodepositing the metal foil on a drum cathode, wherein the metal foil is deposited on a drum cathode comprising: (a) a cylindrical base cylinder having first and second ends; (b) a cylindrical titanium top cylinder on the outer surface of said base cylinder

A process for producing metal foil by electrodepositing the metal foil on a drum cathode, wherein the metal foil is deposited on a drum cathode comprising: (a) a cylindrical base cylinder having first and second ends; (b) a cylindrical titanium top cylinder on the outer surface of said base cylinder, said top cylinder having first and second ends each adjacent a corresponding end of said base cylinder; and (c) an electrical connection means of high ductility and high current-carrying capacity integrally connecting each end of said top cylinder and said base cylinder and extending circumferentially around said ends, said electrical connection means including at least a first weldment comprising a metal capable of being welded to titanium and a second weldment capable of being welded to said base cylinder and wherein said first and second weldments are electrically connected.