Invention Application
- Patent Title: Grain-Oriented Electrical Steel Sheet and Process for Producing the Same
- Patent Title (中): 面向电磁钢板及其制造方法
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Application No.: US11663751Application Date: 2005-11-28
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Publication No.: US20090101248A1Publication Date: 2009-04-23
- 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
- Priority: JP2004-345604 20041130
- International Application: PCT/JP05/22232 WO 20051128
- Main IPC: C21D8/02
- IPC: C21D8/02 ; C22C38/00 ; C22C38/08 ; C22C38/22

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
- US08177920B2 Grain-oriented electrical steel sheet and process for producing the same Public/Granted day:2012-05-15
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