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:
Apr. 07, 2015
Filed:
Jul. 02, 2008
Hiroshi Souda, Yokohama, JP;
Kouichi Akiyama, Yokohama, JP;
Hiroshi Horikawa, Shizouka, JP;
Masahiko Shioda, Yokohama, JP;
Hiroshi Souda, Yokohama, JP;
Kouichi Akiyama, Yokohama, JP;
Hiroshi Horikawa, Shizouka, JP;
Masahiko Shioda, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Nippon Light Metal Company, Ltd., Tokyo, JP;
Abstract
Disclosed are: a casting aluminum alloy that is excellent in elongation as alternative properties of a high cycle fatigue strength and a thermal fatigue strength and is suitably usable for a casting for which both of the excellent high cycle fatigue strength and the excellent thermal fatigue strength are required, for example, an internal combustion engine cylinder head; a casting made of the aluminum alloy; a manufacturing method of the casting; and further, an internal combustion engine cylinder head composed of the aluminum alloy casting and manufactured by the manufacturing method of the casting. The casting aluminum alloy contains, in terms of mass ratios, 4.0 to 7.0% of Si, 0.5 to 2.0% of Cu, 0.25 to 0.5% of Mg, no more than 0.5% of Fe, no more than 0.5% of Mn, and at least one component selected from the group consisting of Na, Ca and Sr, each mass ratio of which is 0.002 to 0.02%.