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:
Dec. 08, 2015
Filed:
May. 23, 2011
Applicants:
Katsunori Otobe, Kyoto, JP;
Shinichi Nishimura, Kyoto, JP;
Kazunori Kurahashi, Hadano, JP;
Inventors:
Assignees:
Fukuda Metal Foil & Powder Co., Ltd., Kyoto, JP;
Nittan Valve Co., Ltd., Hadano-shi, Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 15/00 (2006.01); C09D 1/00 (2006.01); B23K 10/02 (2006.01); B23K 35/30 (2006.01); C22C 19/07 (2006.01); F01L 3/04 (2006.01); C23C 30/00 (2006.01); F16K 51/00 (2006.01); C22F 1/08 (2006.01); C22C 1/02 (2006.01);
U.S. Cl.
CPC ...
C09D 1/00 (2013.01); B23K 10/027 (2013.01); B23K 35/30 (2013.01); C22C 1/02 (2013.01); C22C 19/07 (2013.01); C22F 1/08 (2013.01); C23C 30/00 (2013.01); F01L 3/04 (2013.01); F16K 51/00 (2013.01); B23K 2201/003 (2013.01); F01L 2101/00 (2013.01); F01L 2103/00 (2013.01); F01L 2103/01 (2013.01); F01L 2800/18 (2013.01); F01L 2820/01 (2013.01);
Abstract
A surface hardening material being excellent in abrasion resistance and having impact resistance is provided. Provided are: a wear-resistant cobalt-based alloy containing 20.0 to 30.0 mass % of a sum of Mo and/or W, 0.8 to 2.2 mass % of B, 5.0 to 18.0 mass % of Cr, 5.0 mass % or less of a sum of Fe, Ni, Mn, Cu, Si and C, 1.0 mass % or less of Si, and 0.3 mass % or less of C, and the remainder comprising 55.0 to 70.0 mass % of Co and unavoidable impurities; and an engine valve coated with the same.