Title:
圧粉磁心
Document Type and Number:
Japanese Patent JP5094780
Kind Code:
B2
Abstract:
To provide a dust core that is high in magnetic flux density and low in iron loss and has high strength.
The dust core includes magnetic powders, fluoride particles and heat-denatured material of lubricant, wherein the magnetic powder has an oxide layer and/or an insulation layer on its surface as well as the fluoride particles and the heat-denatured material between the adjoining magnetic powders, and the adjoining oxide layers or insulation layers have a joined section with the fluoride particles in between.
COPYRIGHT: (C)2011,JPO&INPIT
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Inventors:
Takao Imagawa
Yuichi Satsu
Komuro Matahiro
Hiroyuki Suzuki
Yuichi Satsu
Komuro Matahiro
Hiroyuki Suzuki
Application Number:
JP2009097603A
Publication Date:
December 12, 2012
Filing Date:
April 14, 2009
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
H01F1/24; B22F1/00; B22F1/02; B22F3/00; B22F3/02; H01F27/255
Domestic Patent References:
| JP2000034505A | ||||
| JP2002343657A | ||||
| JP2009032860A | ||||
| JP2006041203A | ||||
| JP2008262940A | ||||
| JP2007211275A |
Attorney, Agent or Firm:
Polaire Patent Business Corporation