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:
May. 25, 1993

Filed:

Feb. 26, 1992
Applicant:
Inventors:

Jacques Leger, St Julien sur Dheune, FR;

Remi Roux, Le Creusot, FR;

Gilbert Schweitzer, Le Creusot, FR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; C21D / ;
U.S. Cl.
CPC ...
428683 ; 428685 ; 148529 ; 89 3602 ;
Abstract

Plating is carried out of a stainless steel sheet whose carbide redissolution temperature is lower than 1000.degree. C. onto an armor steel sheet and the plated sheet obtained is quenched so that the Brinell hardness of the armor steel is between 250 and 700 BH. The plating may be carried out by corolling, explosion plating or explosion plating followed by rerolling. Tempering may be performed at a temperature between 200.degree. and 600.degree. C. on the plated and quenched sheet. The quenching is preferably carried out on an oil quenching machine under a press. The armors obtained comprise a stainless coating layer free from carbide precipitates at the grain boundaries. Storage tanks which resist projectiles and are employed for storing liquid corrosive products can be made from the stainless armors according to the invention.


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