Title:
AGING TREATMENT METHOD AND ORIENTED ELECTROMAGNETIC STEEL SHEET MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/063426
Kind Code:
A1
Abstract:
Provided is an oriented electromagnetic steel sheet that has superior magnetic characteristics. An aging treatment method by which a steel sheet is subjected to aging treatment prior to final cold rolling during an oriented electromagnetic steel sheet manufacturing process, wherein during the period from the end of cooling during pre-final cold rolling annealing until biting during the final cold rolling, the total carbon aging quantity is 0.02-0.5 μm in terms of carbon diffusion distance.
Inventors:
SERA AYAKA (JP)
SHINGAKI YUKIHIRO (JP)
SHINGAKI YUKIHIRO (JP)
Application Number:
PCT/JP2022/038469
Publication Date:
April 20, 2023
Filing Date:
October 14, 2022
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C21D8/12; H01F1/147; C22C38/00; C22C38/60
Foreign References:
| JP2003253335A | 2003-09-10 | |||
| JP2005279689A | 2005-10-13 | |||
| JPH01215925A | 1989-08-29 | |||
| JP2011052302A | 2011-03-17 | |||
| JPH06172861A | 1994-06-21 | |||
| CN1978673A | 2007-06-13 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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