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:
Jul. 02, 1985
Filed:
Mar. 22, 1983
Applicant:
Inventor:
David J Field, Tean, GB;
Assignee:
Alcan International Limited, Montreal, CA;
Primary Examiner:
Int. Cl.
CPC ...
C22F / ;
U.S. Cl.
CPC ...
148159 ;
Abstract
Aluminum alloys containing lithium and copper and/or magnesium as principal alloying constituents are homogenized at 530.degree. C. or above to take into solution as-cast intermetallic phases which do not fully go into solution at conventional homogenization temperatures for this class of alloy. Preferably the alloy ingots are slowly heated at rates not exceeding 50.degree. C./hour up to a final homogenization temperature in the region of 550.degree.-560.degree. C. and are then allowed to cool without prolonged holding at temperature.