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.
Patent No.:
Date of Patent:
May. 28, 2002
Filed:
Sep. 04, 2001
Applicant:
Inventors:
Didier Mareuse, Nogent sur Oise, FR;
Thérèse Six, Montataire, FR;
Pierre Jean Krauth, Yutz, FR;
Assignee:
Sollac, Puteaux, FR;
Primary Examiner:
Int. Cl.
CPC ...
B32B 1/520 ;
U.S. Cl.
CPC ...
B32B 1/520 ;
Abstract
A metallic sheet with an aluminum coating, the coating having an internal layer of iron/aluminum/silicon alloys, and an external layer, thicker, of an aluminum-based phase and secondarily of phases in the form of needles or elongated lamellae. The projection of the length of all needles or lamellae in a direction perpendicular to the plane of the external layer is less than the thickness of this layer. This structure, which is obtained by a thermal treatment of the external layer at a temperature of 570-660° C., notably for less than 15 sec, considerably decreases the risks of cracking.