Process of electroplating an adherent chromium electrodeposit on

Details Process of electroplating an adherent chromium electrodeposit on Process of electroplating an adherent chromium electrodeposit on

1986-09-17

1988-07-05

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

204 321, 204 51, C25D 534, C25D 304

Patent

active

047552638

ABSTRACT:
What is described herein is a method of electroplating an adherent chromium deposit on a chromium substrate. The process is characterized by chemically oxidizing the chromium substrate before starting the electrodeposition of chromium thereon. A suitable chemical oxidizing agent is hydrogen ion, which can be furnished by a dilute acid solution. The invention is applicable to any chromium electroplating bath, including high energy efficient chromium baths, such as HEEF-40 baths, which are presently in commercial use.

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patent: 4416738 (1983-11-01), Herrmann, Jr.
patent: 4472249 (1984-09-01), Chessin
patent: 4501647 (1985-02-01), Korpi et al.
patent: 4525250 (1985-06-01), Fahrmbacher-Lutz et al.
patent: 4585530 (1986-04-01), McMullen et al.
patent: 4588481 (1986-05-01), Chessin

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