Title:
MAGNETIC FLAT POWDER AND MAGNETIC SHEET CONTAINING SAME
Document Type and Number:
WIPO Patent Application WO/2018/143427
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide: a magnetic flat powder which has a high real-part magnetic permeability (μ') and a high saturated magnetic-flux density and which also has a high FR; and a magnetic sheet containing same. In order to achieve the foregoing, the present invention provides a magnetic flat powder which contains a plurality of magnetic flat particles, wherein: each of the plurality of magnetic flat particles contains, in terms of mass%, 0.1-3.0% of C, not less than 1.0% but less than 10% of Cr, 0-1.5% of Si, 0-1.5% of Mn, 0-1.5% of Ni and 0-10% of Co, with the remainder comprising Fe and unavoidable impurities; the saturated magnetic flux density of the magnetic flat powder is more than 1.2 T; and the average particle diameter D50 of the magnetic flat powder is 10-65 μm.
Inventors:
MIURA KOUDAI (JP)
SAWADA TOSHIYUKI (JP)
SAWADA TOSHIYUKI (JP)
Application Number:
PCT/JP2018/003649
Publication Date:
August 09, 2018
Filing Date:
February 02, 2018
Export Citation:
Assignee:
SANYO SPECIAL STEEL CO LTD (JP)
International Classes:
H01F1/147; B22F1/00; C22C33/02; C22C38/00; H01F1/28; B22F1/05; B22F1/068
Domestic Patent References:
| WO2013015361A1 | 2013-01-31 |
Foreign References:
| JP2006009044A | 2006-01-12 | |||
| JP2000252679A | 2000-09-14 | |||
| JPS63117406A | 1988-05-21 |
Attorney, Agent or Firm:
NAGAI Hiroshi et al. (JP)
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