Title:
METHOD FOR MANUFACTURING Fe-Co-BASED ALLOY ROD, AND Fe-Co-BASED ALLOY ROD
Document Type and Number:
WIPO Patent Application WO/2021/182518
Kind Code:
A1
Abstract:
Provided are an Fe-Co-based alloy rod and a method for manufacturing same, whereby excellent magnetic properties can be reliably obtained. The method for manufacturing an Fe-Co-based alloy rod comprises a heating straightening step for applying tensile stress to a hot-rolled material of an Fe-Co-based alloy while heating the hot-rolled material to a temperature of 500-900°C. Preferably, ohmic heating is used as a heating means in the heating straightening step. In addition, the Fe-Co-based alloy rod has 20% or more by area ratio of crystal grains having a grain orientation spread (GOS) value of at least 0.5°.
Inventors:
FUJIYOSHI MASARU (JP)
UESAKA SHUJIROH (JP)
KOBAYASHI KOUJI (JP)
UESAKA SHUJIROH (JP)
KOBAYASHI KOUJI (JP)
Application Number:
PCT/JP2021/009570
Publication Date:
September 16, 2021
Filing Date:
March 10, 2021
Export Citation:
Assignee:
HITACHI METALS LTD (JP)
International Classes:
C21D6/00; C22C19/07; C22C38/00; C22F1/00; C22F1/10; H01F1/14
Foreign References:
| JP2006336038A | 2006-12-14 | |||
| JPH05304014A | 1993-11-16 | |||
| JPS61130419A | 1986-06-18 | |||
| JP2004515644A | 2004-05-27 | |||
| JP2002194475A | 2002-07-10 | |||
| JPS5224915A | 1977-02-24 | |||
| US20090184790A1 | 2009-07-23 |
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