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:
Mar. 12, 2019
Filed:
Dec. 18, 2014
Applicant:
Alcoa Inc., Pittsburgh, PA (US);
Inventors:
Xinyan Yan, Murrysville, PA (US);
Jen C. Lin, Export, PA (US);
Assignee:
ALCOA USA CORP., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 21/02 (2006.01); C22F 1/043 (2006.01); B22D 17/02 (2006.01); B22D 17/08 (2006.01); B22D 21/00 (2006.01);
U.S. Cl.
CPC ...
C22C 21/02 (2013.01); B22D 17/02 (2013.01); B22D 17/08 (2013.01); B22D 21/007 (2013.01); C22F 1/043 (2013.01);
Abstract
New aluminum casting alloys having 8.5-9.5 wt. % silicon, 0.8-2.0 wt. % copper (Cu), 0.20-0.53 wt. % magnesium (Mg), and 0.35 to 0.8 wt. % manganese are disclosed. The alloy may be solution heat treated, treated in accordance with T5 tempering and/or artificially aged to produce castings, e.g., for cylinder heads and engine blocks. In one embodiment, the castings are made by high pressure die casting.