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. 17, 2016
Filed:
Oct. 15, 2012
Fukuda Metal Foil & Powder Co., Ltd., Kyoto-shi, Kyoto, JP;
Nittan Valve Co., Ltd., Hadano-shi, Kanagawa, JP;
Katsunori Otobe, Kyoto, JP;
Shinichi Nishimura, Kyoto, JP;
Kenji Nakagawa, Hadano, JP;
Masanami Iio, Hadano, JP;
Fukuda Metal Foil & Powder Co., Ltd., Kyoto, JP;
Nittan Valve Co., Ltd., Hadano-shi, Kanagawa, JP;
Abstract
A hard-facing alloy having impact resistance, wear resistance and hot corrosion resistance and containing Fe which is a bountiful resource and inexpensive is provided. Provided are: a Ni—Fe—Cr alloy containing 0 to 20.0 mass % of Mo, 8.0 to 40.0 mass % of W, 20.0 to 40.0 mass % of a total amount of Mo and W, 20.0 to 50.0 mass % of Fe, 12.0 to 36.0 mass % of Cr and 1.0 to 2.5 mass % of B, and the remainder being Ni and unavoidable impurities; and an engine valve welded with the same alloy. The above Ni—Fe—Cr alloy can further contain 15 mass % or less of a total amount of elements selected from Co, Mn, Cu, Si and C, in such cases, 15.0 mass % or less of Co, 5.0 mass % or less of each of Mn and Cu, 2.0 mass % or less of Si and 0.5 mass % or less of C are preferred.