Title:
無方向性電磁鋼板およびその製造方法
Document Type and Number:
Japanese Patent JP6638359
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a nonoriented magnetic steel sheet combining low iron loss with high magnetic flux density at a high level and a production method therefor.SOLUTION: The nonoriented magnetic steel sheet that has a chemical composition containing, by mass%, Si:1.7% to 3.3%, Al:0.1% to 2.0% and Mn:0.08% or more and less than 1.5%, each contained in an amount with a range satisfying the following formula (1), further P:over 0.03% and 0.13% or less, Sn:0.02% to 0.15%, C:0.005% or less, S:0.0040% or less, N:0.005% or less and Mo:0.002% to 0.2% and the balance Fe with inevitable impurities, and that has a steel structure in which an average crystal particle diameter is 60 μm to 150 μm and that has a sheet thickness of 0.10 mm to 0.25 mm. Si+2×Al-Mn≥2.0 (1), where S, Al and Mn represent content of each element (unit:mass%).SELECTED DRAWING: None
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Inventors:
Ichiro Tanaka
Satoshi Kano
Hirotoshi Tada
Kaname Yashiki
Satoshi Arai
Yosuke Kurosaki
Satoshi Kano
Hirotoshi Tada
Kaname Yashiki
Satoshi Arai
Yosuke Kurosaki
Application Number:
JP2015239375A
Publication Date:
January 29, 2020
Filing Date:
December 08, 2015
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
C22C38/00; C21D8/12; C22C38/12; H01F1/16
Domestic Patent References:
| JP2003013190A | ||||
| JP2016151063A |
Foreign References:
| WO2013046661A1 | ||||
| WO2013100698A1 |
Attorney, Agent or Firm:
Akihiko Yamashita
Kishimoto Tatsuto
Noriyuki Yamamoto
Kishimoto Tatsuto
Noriyuki Yamamoto