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:
Apr. 09, 2024
Filed:
Oct. 23, 2018
Applicant:
Tpr Co., Ltd., Tokyo, JP;
Inventors:
Assignee:
TPR CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F 5/00 (2006.01); B22F 3/16 (2006.01); C22C 38/16 (2006.01); F01L 3/08 (2006.01);
U.S. Cl.
CPC ...
B22F 5/008 (2013.01); B22F 3/16 (2013.01); C22C 38/16 (2013.01); F01L 3/08 (2013.01); B22F 2301/10 (2013.01); B22F 2301/35 (2013.01); F01L 2301/00 (2020.05); F01L 2303/00 (2020.05);
Abstract
Provided are a valve guide made of an iron-based sintered alloy excellent in wear resistance and thermal conductivity, and a method of producing the same. Specifically, provided are a method of producing a valve guide made of an iron-based sintered alloy, the method including the steps of: molding raw material powder including diffusion-alloyed powder including core iron powder and Cu bonded to the core iron powder through diffusion to obtain a molded body; and sintering the molded body, to thereby produce a valve guide made of an iron-based sintered alloy, and a valve guide produced by the production method.