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, 2022
Filed:
Mar. 07, 2019
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Hidefumi Nakamura, Hachinohe, JP;
Ryo Numasawa, Hachinohe, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C 33/02 (2006.01); B22F 1/00 (2006.01); B22F 3/10 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/44 (2006.01); C22C 38/48 (2006.01); B22F 1/10 (2022.01);
U.S. Cl.
CPC ...
C22C 33/0207 (2013.01); B22F 1/10 (2022.01); B22F 3/10 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/44 (2013.01); C22C 38/48 (2013.01); B22F 2301/35 (2013.01); B22F 2998/10 (2013.01); C21D 2211/001 (2013.01);
Abstract
A metal powder for powder metallurgy contains Fe as a principal component, Cr in a proportion of 11.0 mass % or more and 25.0 mass % or less, Ni in a proportion of 8.0 mass % or more and 30.0 mass % or less, Si in a proportion of 0.20 mass % or more and 1.2 mass % or less, C in a proportion of 0.070 mass % or more and 0.40 mass % or less, Mn in a proportion of 0.10 mass % or more and 2.0 mass % or less, P in a proportion of 0.10 mass % or more and 0.50 mass % or less, and at least one of W and Nb in a proportion of 0.20 mass % or more and 3.0 mass % or less in total.