Title:
GRAIN-ORIENTED ELECTRICAL STEEL SHEET WITH EXCELLENT CORE LOSS CHARACTERISTIC
Document Type and Number:
Japanese Patent JP2007314826
Kind Code:
A
Abstract:
To provide a grain-oriented electrical steel sheet having better core loss characteristics by clarifying the actual state of a ä110}<001> recrystallization texture responsible for magnetic properties.
The grain-oriented electrical steel sheet with excellent core loss characteristics contains 0.8 to 7 mass% Si and has a secondary recrystallization texture whose principal orientation is ä110}<001>. This steel sheet is characterized in that average deviation angles α, β and γ from the ä110}<001> ideal orientation of the secondary recrystallization texture satisfy (α2+β2)1/2≤γ. In the inequality, the followings are satisfied, with respect to the secondary recrystallization texture: α is an average deviation angle from the ä110}<001> ideal orientation around a normal direction (ND) of a rolling surface; β is an average deviation angle from the ä110}<001> ideal orientation around a direction (TD) perpendicular to a rolling direction; and γ is an average deviation angle from the ä110}<001> ideal orientation around the rolling direction (RD).
COPYRIGHT: (C)2008,JPO&INPIT
Inventors:
USHIGAMI YOSHIYUKI
FUJII NOBUNORI
MURAKAMI KENICHI
MORISHIGE NORISATO
Application Number:
JP2006144058A
Publication Date:
December 06, 2007
Filing Date:
May 24, 2006
Assignee:
NIPPON STEEL CORP
International Classes:
C22C38/00; C22C38/04; C22C38/60; H01F1/16
Domestic Patent References:
| JP2002060842A | 2002-02-28 | | | |
| JPH08213225A | 1996-08-20 | | | |
| JPS579418B2 | 1982-02-22 | | | |
| JPH10324959A | 1998-12-08 | | | |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Hiroshi Kamematsu
Nagasaka Tomoyasu
