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:
Jun. 16, 1998

Filed:

Sep. 24, 1996
Applicant:
Inventors:

Louis Guillot, Thionville, FR;

Vincent Cholet, Metz, FR;

Daniel Vonner, Thionville, FR;

Assignee:

Sollac, Puteaux, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C / ;
U.S. Cl.
CPC ...
148254 ; 148256 ; 205183 ;
Abstract

Process in which the said surface is pickled and then treated in two steps, a first treatment step of so-called 'amorphous' phosphatization, suitable for depositing a coat of at least 0.2 g/m.sup.2, followed by a second treatment step called 'nickel plating'. In this way, it is possible to limit the amount of sludge at pickling while at the same time obtaining good adhesion of the enamel. In a complete sequence for manufacturing an article formed from direct-on enameled metal sheet, the sheet may be formed after pickling, especially after the first step called phosphatization and before the second step called nickel plating.


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