Title:
METHOD FOR MANUFACTURING ORIENTED ELECTROMAGNETIC STEEL SHEET
Document Type and Number:
WIPO Patent Application WO/2016/084378
Kind Code:
A1
Abstract:
During manufacturing of an oriented electromagnetic steel sheet by an inhibitorless method, in a cold rolling step, the total cold rolling draft in the final cold rolling is set to 85% or greater, the draft in each pass of the final cold rolling is set to 32% or greater, and a work roll having a surface roughness Ra of 0.25 µm or less is used in at least one pass other than the final pass in the final cold rolling, and it is thereby possible to stably manufacture an oriented electromagnetic steel sheet having low cost and excellent magnetic characteristics.
Inventors:
HAYAKAWA YASUYUKI (JP)
UENO MASAYASU (JP)
UENO MASAYASU (JP)
Application Number:
PCT/JP2015/005879
Publication Date:
June 02, 2016
Filing Date:
November 26, 2015
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C21D8/12; B21B1/22; C22C38/00; C22C38/60; H01F1/16
Domestic Patent References:
| WO2014017590A1 | 2014-01-30 |
Foreign References:
| JP2012184497A | 2012-09-27 | |||
| JPH11199933A | 1999-07-27 | |||
| JPH06339701A | 1994-12-13 | |||
| JPS6115919A | 1986-01-24 |
Other References:
See also references of EP 3225704A4
Attorney, Agent or Firm:
SUGIMURA, KENJI (JP)
Kenji Sugimura (JP)
Kenji Sugimura (JP)
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