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Patent Searching and Data


Title:
NON-ORIENTED ELECTROMAGNETIC STEEL SHEET AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/135414
Kind Code:
A1
Abstract:
It is possible to increase magnetic flux density and reduce core loss with the present invention, wherein: a steel sheet has component composition containing, in mass%, C: 0.0050% or less, Si: 1.50% to 4.00%, Al: 0.500% or less, Mn: 0.10% to 5.00%, S: 0.0200% or less, P: 0.200% or less, N: 0.0050% or less, O: 0.0200% or less, and 0.0010% to 0.10% each of Sb and/or Sn, the balance being Fe and unavoidable impurities; the Ar3 transformation temperature is at least 700°C; the crystal grain diameter is 80 µm to 200 µm; and Vickers hardness is 140 HV to 230 HV.

Inventors:
ODA YOSHIHIKO (JP)
OKUBO TOMOYUKI (JP)
ZAIZEN YOSHIAKI (JP)
UESAKA MASANORI (JP)
Application Number:
PCT/JP2018/000710
Publication Date:
July 26, 2018
Filing Date:
January 12, 2018
Export Citation:
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Assignee:
JFE STEEL CORP (JP)
International Classes:
C22C38/00; C21D8/12; C22C38/60; H01F1/147; C21D9/46
Domestic Patent References:
WO2017056383A12017-04-06
Foreign References:
JP2014195818A2014-10-16
JP2016129902A2016-07-21
JP2001323352A2001-11-22
JP2013044009A2013-03-04
JPH10251752A1998-09-22
JP2002504624A2002-02-12
JP2005525469A2005-08-25
US20150318093A12015-11-05
JP2000129410A2000-05-09
Other References:
See also references of EP 3572545A4
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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