Process for the production of nickel clad steel coinage blank

Details Process for the production of nickel clad steel coinage blank Process for the production of nickel clad steel coinage blank

1976-11-18

1978-05-16

Tufariello, T. M.

Chemistry: electrical and wave energy

Processes and products

204 37R, C25D 700, C25D 550, C25D 1720

Patent

active

040897532

ABSTRACT:
A process for the production of coin blanks suitable for minting into coins includes providing metallic core pieces, each core piece having opposed, substantially planar faces and a common side edge. The core pieces are loaded into a perforated container which is placed in an electroplating bath. A metallic cladding is placed on the core pieces, while moving the container angularly about a horizontal axis, until the metallic cladding has a thickness of at least about 0.05 mm on each face of each core piece and a thickness of at least 2 to 4 times the face thickness on the side edge of each core.

REFERENCES:
patent: 688857 (1901-12-01), Johnson
patent: 2731403 (1956-01-01), Rubin
patent: 3344817 (1967-10-01), Connard
Metal Finishing Guide Book Directory for 1974, 42nd Edition, pp. 356-359, 461-477.

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