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. 05, 1992
Filed:
Mar. 26, 1991
Applicant:
Inventor:
Jean-Francois Faure, Voiron, FR;
Assignee:
Pechiney Recherche, Courbevoie, FR;
Primary Examiner:
Int. Cl.
CPC ...
C22F / ;
U.S. Cl.
CPC ...
148552 ; 148403 ; 148535 ; 148695 ; 420532 ;
Abstract
A method for preparation of an aluminum based alloy composition comprising forming by spray deposition, a solid body having a composition comprising, by weight, 5.5 to 8.45% Zn, 2 to 3.5% Mg, 0.5 to 2.5% Cu, 0.1 to 0.5% Zr, 0.3 to 0.6% Cr, 0.3 to 1.1% Mn, up to 0.5% Fe, up to 0.5% Si, other elements <0.05% each, up to 0.15% total, and balance Al. The body is converted to a worked product at 300.degree. to 450.degree. C., optionally converted cold, and heat treated in a series of steps comprising dissolution, quenching and annealing in a T6 or T7 state.