Method of producing an adherent, smooth deposit of chromium on a

Details Method of producing an adherent, smooth deposit of chromium on a Method of producing an adherent, smooth deposit of chromium on a

1986-01-12

1988-03-15

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

20415742, 2041291, 204 51, C25D 536

Patent

active

047311665

ABSTRACT:
An adherent, smooth electrodeposit of chromium is produced on a nodular cast iron substrate from a chromium plating bath. The desired deposit is provided herein by activating the substrate, subjecting the activated substrate to an ultrasonic treatment, and thereafter plating chromium from a chromium plating bath. The method is particularly effective for electrodeposition of chromium on such substrates from commercial high energy efficient chromium electroplating baths, where ordinarily only roughened deposits are obtained.

REFERENCES:
patent: 2744860 (1956-05-01), Rines

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