Title: Electrolyte for bronze (copper-tin alloy) electroplating without cyanide
Application Number: 86105646 Application Date: 1986.07.29
Publication Number: 1016351 Publication Date: 1988.02.10
Approval Pub. Date: Granted Pub. Date: 1990.10.03
International Classifi-cation: C25D3/58
Applicant(s) Name: Fu Xiren Address:
Inventor(s) Name:
Attorney & Agent:
Abstract:
     This invention provides a new electrolyte for bronze electroplating without using cyanide. The electrolyte contains a cupperic compound (e.g., CuCl2. 2H2O), a stannate (e.g., Na2Sn(OH)6), and ethylene glygol, with ammonium triacetate being added as well. The electrolyte shows good dispersibility, with wide-range of cathod electric current density, is easy to control and maintain. Steel and iron parts can be directly electroplated with this electrolyte, resulting in electroplated layer of good adhesion.
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