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:
Jul. 15, 2025
Filed:
Dec. 11, 2020
Applicant:
Diamet Corporation, Niigata, JP;
Inventor:
Yoshinari Ishii, Niigata, JP;
Assignee:
Diamet Corporation, Niigata, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C 1/04 (2023.01); C22C 9/01 (2006.01);
U.S. Cl.
CPC ...
C22C 1/0425 (2013.01); C22C 9/01 (2013.01);
Abstract
A method for manufacturing a Cu—Ni—Al-based sintered alloy according to the present invention includes: adding pure Al powder to alloy powder containing Cu, Ni, and Al and mixing them to produce raw material powder with a composition ratio of Ni: 1% to 15% by mass, Al: 1.9% to 12% by mass, and a Cu balance containing inevitable impurities; compacting the raw material powder to form a green compact; and sintering the green compact in a mixture gas atmosphere of hydrogen gas and nitrogen gas that contains 3% by volume or more of hydrogen gas.