Title:
ORIENTED ELECTROMAGNETIC STEEL PLATE AND PRODUCTION METHOD FOR SAME
Document Type and Number:
WIPO Patent Application WO/2012/001952
Kind Code:
A1
Abstract:
Disclosed is an oriented electromagnetic steel plate with magnetic domain refinement by laser irradiation or electron beam irradiation, which achieves excellent low-noise and low-iron loss characteristics when assembled on an existing transformer, as a result of the total tensile strength applied to the steel plate by forsterite coating and tensile strength coating being 10.0 MPa min. in the rolling direction and 5.0 MPa min. in the direction perpendicular to the rolling direction, and these total tensile strengths fulfilling the relationship in the following formula (1): 1.0≤A/B≤5.0 …. (1), where A is the total tensile strength from forsterite coating and tensile strength coating in the rolling direction, and B is the total tensile strength from forsterite coating and tensile strength coating in the direction perpendicular to the rolling direction.
Inventors:
OMURA, Takeshi (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 〒1000011, JP)
大村 健 (〒11 東京都千代田区内幸町二丁目２番３号 ＪＦＥスチール株式会社 知的財産部内 Tokyo, 〒1000011, JP)
YAMAGUCHI, Hiroi (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 〒1000011, JP)
大村 健 (〒11 東京都千代田区内幸町二丁目２番３号 ＪＦＥスチール株式会社 知的財産部内 Tokyo, 〒1000011, JP)
YAMAGUCHI, Hiroi (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 〒1000011, JP)
Application Number:
JP2011/003684
Publication Date:
January 05, 2012
Filing Date:
June 28, 2011
Export Citation:
Assignee:
JFE STEEL CORPORATION (2-3 Uchisaiwai-cho 2-chome, Chiyoda-ku Tokyo, 11, 〒1000011, JP)
ＪＦＥスチール株式会社 (〒11 東京都千代田区内幸町二丁目２番３号 Tokyo, 〒1000011, JP)
OMURA, Takeshi (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 〒1000011, JP)
大村 健 (〒11 東京都千代田区内幸町二丁目２番３号 ＪＦＥスチール株式会社 知的財産部内 Tokyo, 〒1000011, JP)
ＪＦＥスチール株式会社 (〒11 東京都千代田区内幸町二丁目２番３号 Tokyo, 〒1000011, JP)
OMURA, Takeshi (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 〒1000011, JP)
大村 健 (〒11 東京都千代田区内幸町二丁目２番３号 ＪＦＥスチール株式会社 知的財産部内 Tokyo, 〒1000011, JP)
International Classes:
C22C38/00; B21B3/02; C21D9/46; C23C22/00; H01F1/16; H01F1/18; C22C38/40
Attorney, Agent or Firm:
SUGIMURA, Kenji (36F Kasumigaseki Common Gate West, 3-2-1 Kasumigaseki, Chiyoda-k, Tokyo 13, 〒1000013, JP)
Claims: