Electrodeposition of tin-containing alloys and bath therefor

Details Electrodeposition of tin-containing alloys and bath therefor Electrodeposition of tin-containing alloys and bath therefor

C - Chemistry, Metallurgy

25

D

204/27.5

C25D 3/56 (2006.01) C25D 3/60 (2006.01)

Patent

CA 1062649

ABSTRACT OF THE DISCLOSURE An electrodeposited bright coating simulating in appearance that of chromium is formed on a metal-bearing sub- strate with substantial production economies by contacting the metallic layer on the substrate with an aqueous solution includ- ing therein a source of cobalt, nickel or iron ions; a source of tin ions; and a complexing agent selected from the group con- sisting of gluconate, glucoheptonate, or mixtures thereof. If desired, the aqueous solution may include a source of zinc ions. During the process the thickness of the chromium-like appearance coating is controlled so that it does not substantially exceed five micrometers.

248731

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