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:
Jun. 14, 2016
Filed:
May. 03, 2012
Kaoru Imaizumi, Aichi, JP;
Shigeki Ueta, Aichi, JP;
Kaoru Imaizumi, Aichi, JP;
Shigeki Ueta, Aichi, JP;
DAIDO STEEL CO., LTD., Aichi, JP;
Abstract
The present invention relates to a high-hardness hardfacing alloy powder, containing: 0.5<C≦3.0 mass %, 0.5≦Si≦5.0 mass %, 10.0≦Cr≦30.0 mass %, and 16.0<Mo≦40.0 mass %, with the balance being Co and unavoidable impurities, wherein a total amount of Mo and Cr satisfies 40.0≦Mo+Cr≦70.0 mass %. The high-hardness hardfacing alloy powder according to the present invention may further contain at least one element selected from the group consisting of: Ca≦0.03 mass %, P≦0.03 mass %, Ni≦5.0 mass % and Fe≦5.0 mass %. The high-hardness hardfacing alloy powder according to the present invention can be employed for build-up welding of a face part of a valve used in various internal combustion engines, automotive engines, steam turbines, heat exchangers, heating furnaces and the like.