Electrolytic post-treatment of phosphated surface

Details Electrolytic post-treatment of phosphated surface Electrolytic post-treatment of phosphated surface

C - Chemistry, Metallurgy

25

D

204/22

C25D 9/08 (2006.01) C09D 5/08 (2006.01) C23C 22/82 (2006.01) C23C 22/83 (2006.01) C25D 11/38 (2006.01) C25D 13/00 (2006.01)

Patent

CA 1314511

ABSTRACT OF THE DISCLOSURE An improved process for preparing a phosphated metal surface for painting comprises electrolyzing the surface as cathode in an aqueous solution containing hexavalent and trivalent chromium in specified concentrations and weight ratios.

535132

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