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Title:
MANUFACTURING METHOD OF ORIENTED ELECTROMAGNETIC STEEL SHEET
Document Type and Number:
Japanese Patent JP2017145490
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a manufacturing method of an oriented electromagnetic steel sheet capable of providing good iron loss property when constructed to a transformer.SOLUTION: A heat strain is introduced to a decarbonized annealed plate locally under a condition with suppressing a reaction between a surface of the decarbonized annealed plate and atmosphere gas after completion of decarbonization annealing and before initiation of finish annealing and increase of nucleation of a general crystal particles (primary recrystallization particles having an orientation largely displaced from a Goss orientation) in a local area where the heat strain is introduced and growth driving force is promoted.SELECTED DRAWING: Figure 2

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Inventors:
OMURA TAKESHI
TAKAGI SHIGEHIRO
TERAJIMA TAKASHI
Application Number:
JP2016030241A
Publication Date:
August 24, 2017
Filing Date:
February 19, 2016
Export Citation:
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Assignee:
JFE STEEL CORP
International Classes:
C21D8/12; B23K15/00; C21D9/46; C22C38/00; C22C38/04; C22C38/60; H01F1/16
Domestic Patent References:
JPS63186825A1988-08-02
JPH03104823A1991-05-01
JP2014199734A2014-10-23
Attorney, Agent or Firm:
Kenji Sugimura
Keisuke Kawahara
Kengo Sake



 
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