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. 16, 2024
Filed:
Jun. 08, 2021
Applicant:
Honda Motor Co., Ltd., Tokyo, JP;
Inventors:
Masaki Shinkawa, Saitama, JP;
Kazuo Kikawa, Saitama, JP;
Assignee:
HONDA MOTOR CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 33/02 (2006.01); C21D 6/00 (2006.01); C22C 38/04 (2006.01);
U.S. Cl.
CPC ...
C22C 33/0207 (2013.01); C21D 6/005 (2013.01); C22C 38/04 (2013.01); C21D 2211/001 (2013.01);
Abstract
An iron alloy manufacturing method which can suppress occurrence of distortion and crack in formed iron alloy layers is provided. During execution of a forming step, in a first temperature control step, an iron alloy layer temperature Tof a predetermined number of laminated layers from a surface layer of iron alloy layers formed in the forming step is controlled to be kept within a range of Ms≤T≤Ms+α, and in a second temperature control step, a base plate temperature Tis controlled to be kept within a range of Mf−β≤T≤Mf.