Inventors:
Kenneth R. Newby - Berkeley Heights NJ
Assignee:
M&T Chemicals Inc. - Woodbridge NJ
International Classification:
C25D 534
C25D 304
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.