发明授权
EP2705176B1 ELECTROPLATING BATH AND METHOD FOR PRODUCING DARK CHROMIUM LAYERS 有权
VERFAHREN ZER HERSTELLUNG VON DUNKLEN CHROMSCHICHTEN的GALVANISIERUNGSBAD

ELECTROPLATING BATH AND METHOD FOR PRODUCING DARK CHROMIUM LAYERS
摘要:
The invention relates to methods and plating baths for electrodepositing a dark chromium layer on a workpiece. The trivalent chromium electroplating baths comprise sulphur compounds and the methods for electrodepositing a dark chromium layer employ these trivalent chromium electroplating baths. The dark chromium deposits and workpieces carrying dark chromium deposits are suited for application for decorative purposes.
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