Title:
METHOD FOR PRODUCING FE-CO-BASED ALLOY ROD, AND FE-CO-BASED ALLOY ROD
Document Type and Number:
WIPO Patent Application WO/2024/048138
Kind Code:
A1
Abstract:
The present invention provides: an Fe-Co-based alloy rod which is capable of suppressing variation in the magnetic characteristics of a long rod; and a method for producing this Fe-Co-based alloy rod. A method for producing an Fe-Co-based alloy rod, the method comprising a hot rolling step in which an Fe-Co-based alloy billet is subjected to hot rolling so as to obtain a hot rolled rod that has a length of 2 m or more, and a heating straightening step in which a tensile stress is applied to the hot rolled rod so that the area reduction ratio of the rod is 2.0% to 8.0%, while heating the hot rolled rod to 500°C to 900°C, without having a solution heat treatment between the hot rolling step and the heating straightening step; and an Fe-Co-based alloy rod.
Inventors:
KATO DAIKI (JP)
UESAKA SHUJIRO (JP)
UESAKA SHUJIRO (JP)
Application Number:
PCT/JP2023/027225
Publication Date:
March 07, 2024
Filing Date:
July 25, 2023
Export Citation:
Assignee:
PROTERIAL LTD (JP)
International Classes:
C21D8/12; C22C19/07; C22C30/00; C22C38/00; C22F1/10; C22F1/00
Domestic Patent References:
| WO2021182518A1 | 2021-09-16 |
Foreign References:
| JP2004515644A | 2004-05-27 | |||
| US20090184790A1 | 2009-07-23 |
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