Title:
METHOD FOR MANUFACTURING GRAIN-ORIENTED ELECTROMAGNETIC STEEL SHEET
Document Type and Number:
WIPO Patent Application WO/2022/250067
Kind Code:
A1
Abstract:
Provided is a method for manufacturing a grain-oriented electromagnetic steel sheet having excellent uniformity in magnetic characteristics in a sheet width direction without causing an increase in manufacturing cost. In this invention, the relation in expression (1) given below is satisfied in terms of ignition loss of an annealing separator after dried: IGLOSS (mass%), storage time of a cold-rolled steel sheet: T (hr), and carbon dioxide concentration in the storage environment of the cold-rolled steel sheet: A (mass ppm). Expression (1): A x IGLOSS ≤ -1,500 x Ln (T) + 9,000
Inventors:
TERASHIMA TAKASHI (JP)
YAMADA TAKUYA (JP)
YAMADA TAKUYA (JP)
Application Number:
PCT/JP2022/021302
Publication Date:
December 01, 2022
Filing Date:
May 24, 2022
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C21D8/12; C21D9/46; C23C22/00; H01F1/147; C22C38/00; C22C38/02; C22C38/60
Foreign References:
| JPH10158744A | 1998-06-16 | |||
| JPH11229036A | 1999-08-24 | |||
| JP2007177298A | 2007-07-12 | |||
| KR20050005342A | 2005-01-13 | |||
| JP2007169755A | 2007-07-05 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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