The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 19, 1988

Filed:

Oct. 15, 1986
Applicant:
Inventors:

Bruno Renaux, Jupille, BE;

Armand Davin, Boncelles, BE;

Andre Skenazi, Steenokkerzeel, BE;

Jean Yperman, Plainevaux, BE;

Assignee:

International Lead Zinc Research Organization, Inc., Research Triangle Park, NC (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C / ;
U.S. Cl.
CPC ...
204 385 ; 427310 ; 427433 ;
Abstract

There is disclosed a method of depositing a protective coating on a ferrous substrate comprising the steps of immersing the substrate in an electrolytic solution containing zinc chloride, a fluoride and at least one of NiCl.sub.2 and CoCl.sub.2, electrodepositing on said substrate a thin pre-coating comprising zinc, said electrolytic bath also functioning as a flux such that the thin electrodeposited coating comprising zinc will have thereon a flux coating as the substrate is removed from the electrolytic bath; removing the pre-coated substrate from the electrolytic bath, thereafter immersing the pre-coated substrate in a molten metal bath containing zinc so as to deposit a zinc-containing protective coating on said substrate, and removing said substrate from said molten bath.


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