Process for the galvanic deposition of nickel from a nickel bath

Details Process for the galvanic deposition of nickel from a nickel bath Process for the galvanic deposition of nickel from a nickel bath

1978-05-10

1979-07-10

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

204237, 204DIG13, C25D 312

Patent

active

041607090

ABSTRACT:
A method for galvanic deposition of nickel from an electrolyte containing nickel sulfamate and nickel chloride is disclosed wherein the formation of intermediate products resulting from the oxidation of nickel sulfamate and the escape of anode sludge into the electrolyte are controlled to such an extent so as to reduce the amount of sulfur incorporated in the deposition to less than about 15 ppm.
This results in avoidance of brittleness in the nickel deposition at high temperatures and allows the coated article to be welded. These properties were difficult or impossible to obtain in the prior art processes.

REFERENCES:
patent: 3326782 (1967-06-01), Kendrick et al.
patent: 3990955 (1976-11-01), Dill
L. Serota, Metal Finishing, pp. 59-61, Jul., 1962.
J. L. Marti et al., Plating, pp. 377-385, Apr., 1969.
J. K. Dennis et al., "Nickel and Chromium Plating," pp. 65-67, 77, 79 & 138-145, (1972).

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