Title:
POWDER MAGNETIC CORE, SOFT MAGNETIC MATERIAL, METHOD FOR PRODUCING POWDER MAGNETIC CORE
Document Type and Number:
Japanese Patent JP2017224795
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a powder magnetic core, soft magnetic powder, and a method for producing the powder magnetic core with improved iron loss and DC superposition characteristics.SOLUTION: The powder magnetic core comprises Fe-Ni alloy powder and an insulating layer provided around the Fe-Ni alloy powder. The insulating layer includes: a first layer containing silicon (Si) provided on the surface of the Fe-Ni alloy powder; and a second layer containing silicon (Si) provided on the surface of the first layer. It is preferable that inorganic insulating powder is contained in the first layer.SELECTED DRAWING: Figure 3
Inventors:
AKAIWA KOTA
OSHIMA YASUO
OSHIMA YASUO
Application Number:
JP2016121292A
Publication Date:
December 21, 2017
Filing Date:
June 17, 2016
Export Citation:
Assignee:
TAMURA SEISAKUSHO KK
International Classes:
H01F1/24; B22F1/00; B22F1/02; B22F3/00; B22F3/24; H01F1/14; H01F1/33; H01F3/08; H01F27/255; H01F41/02
Domestic Patent References:
| JP2006202956A | 2006-08-03 | |||
| JP2010183056A | 2010-08-19 | |||
| JPH07254522A | 1995-10-03 | |||
| JP2010245460A | 2010-10-28 | |||
| JP2010183057A | 2010-08-19 |
Foreign References:
| WO2011077601A1 | 2011-06-30 | |||
| WO2000048211A1 | 2000-08-17 | |||
| US20100194516A1 | 2010-08-05 |
Attorney, Agent or Firm:
Kiuchi Mitsuharu
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