Invention Grant
- Patent Title: Grain-oriented electrical steel sheet and process for producing the same
- Patent Title (中): 晶粒取向电工钢板及其制造方法
-
Application No.: US11663751Application Date: 2005-11-28
-
Publication No.: US08177920B2Publication Date: 2012-05-15
- Inventor: Yukihiro Shingaki , Minoru Takashima , Tadashi Nakanishi , Takeshi Murai
- Applicant: Yukihiro Shingaki , Minoru Takashima , Tadashi Nakanishi , Takeshi Murai
- Applicant Address: JP Tokyo
- Assignee: JFE Steel Corporation
- Current Assignee: JFE Steel Corporation
- Current Assignee Address: JP Tokyo
- Agency: Holtz, Holtz, Goodman & Chick, P.C.
- Priority: JP2004-345604 20041130
- International Application: PCT/JP2005/022232 WO 20051128
- International Announcement: WO2006/059740 WO 20060608
- Main IPC: C21D8/12
- IPC: C21D8/12 ; C22C38/02 ; H01F1/16 ; H01F27/245

Abstract:
The present invention provides a grain-oriented electrical steel sheet produced by a method for promoting secondary recrystallization without an inhibitor, the grain-oriented electrical steel sheet including 2.0% or more and 4.5% or less of Si and 0.01% or more and 0.5% or less of Mn on a mass % basis, wherein the number of oxide particles having a diameter of 1 to 3 μm among that (oxide particles) of containing Ca and/or Mg is 400 or less per unit area (1 cm2) in a transverse cross-section perpendicular to a rolling direction. Therefore, the grain-oriented electrical steel sheet has excellent stable magnetic properties throughout the length of a coil.
Public/Granted literature
- US20090101248A1 Grain-Oriented Electrical Steel Sheet and Process for Producing the Same Public/Granted day:2009-04-23
Information query