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Patent Searching and Data


Title:
GRAIN-ORIENTED ELECTROMAGNETIC STEEL SHEET AND DECARBURIZED STEEL SHEET USED FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2017/073615
Kind Code:
A1
Abstract:
A grain-oriented electromagnetic steel sheet according to the present invention has a chemical composition expressed by, in mass%, Si: 1.8% to 7.0%, Cu: 0.03% to 0.60%, the balance: Fe and impurities, and includes a primary coating film containing forsterite on the surface of the steel sheet. The Cu/Fe light-emitting intensity ratio at the interface area between the primary coating film and the surface of the steel sheet is 0.30 or less.

Inventors:
FUJIMURA HIROSHI (JP)
TAKAHASHI FUMIAKI (JP)
KATAOKA TAKASHI (JP)
Application Number:
PCT/JP2016/081732
Publication Date:
May 04, 2017
Filing Date:
October 26, 2016
Export Citation:
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Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
C22C38/00; C21D8/12; C21D9/46; C22C38/16; C22C38/60; C23C22/00; H01F1/16; H01F1/18
Foreign References:
JP2011111645A2011-06-09
JP2003193141A2003-07-09
JPH08277421A1996-10-22
JPH10102149A1998-04-21
JP2014196559A2014-10-16
EP2775007A12014-09-10
Other References:
See also references of EP 3369834A4
Attorney, Agent or Firm:
KOKUBUN, Takayoshi (JP)
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