Title:
方向性電磁鋼板
Document Type and Number:
Japanese Patent JP5871137
Kind Code:
B2
Abstract:
When a steel sheet containing Si: 2-5 mass% after cold rolling is subjected to a primary recrystallization annealing and a finishing annealing for secondary recrystallization to form a grain-oriented electrical steel sheet, the primary recrystallization annealing is performed by rapid heating in the heating process and temperature keeping treatment at a certain temperature in the course of the heating to thereby obtain a grain-oriented electrical steel sheet having plural peaks in a distribution of misorientation angle between crystal orientation of secondary recrystallized grains and Goss orientation, wherein misorientation angle of the second smallest peak among the plural peaks is preferably not less than 5° and a grain size of secondary recrystallized grains is not more than 15 mm.
Inventors:
Takeru Imamura
Aragaki
Ryuichi Suehiro
Toshiaki Takamiya
Aragaki
Ryuichi Suehiro
Toshiaki Takamiya
Application Number:
JP2012271080A
Publication Date:
March 01, 2016
Filing Date:
December 12, 2012
Export Citation:
Assignee:
jfe Steel Corporation
International Classes:
C22C38/00; C22C38/02; C22C38/60; H01F1/16
Domestic Patent References:
| JP63105926A | ||||
| JP2007314826A | ||||
| JP10130729A | ||||
| JP2012126989A | ||||
| JP60245769A | ||||
| JP2003027194A |
Attorney, Agent or Firm:
Ginza Marronnier Patent Office