Chromium plating

Details Chromium plating Chromium plating

1979-03-07

1980-11-18

Tufariello, T. M.

Chemistry: electrical and wave energy

Processes and products

C25D 306

Patent

active

042343968

ABSTRACT:
The present invention relates to a plating bath for electroplating various metals with chromium, prepared from 100 g to 1600 g chromium trioxide per liter, 0.3 weight percent to 15 weight percent Cl (chlorine or chloride ions) calculated on the chromium trioxide, and/or 0.3 to 10 weight percent I (iodine and/or iodide ions) calculated on the chromium trioxide said plating bath optionally containing also from 0.3 weight percent to 2 weight percent sulfate ions calculated on the chromium trioxide, and to a process of electroplating of metals from such plating baths, which is effected at a temperature between room temperature and about 60.degree. C. at a current density from 10 A/dm.sup.2 to about 270 A/dm.sup.2.

REFERENCES:
patent: 1581188 (1926-04-01), Fink
patent: 3475295 (1969-10-01), Smith
patent: 3706636 (1972-12-01), Bride
patent: 3706638 (1972-12-01), Bride
patent: 3706642 (1972-12-01), Brannan
Modern Electroplating, Edited by Frederick Lowenheim, 2nd Edition, 1963, pp. 80-99, 128-133.

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