SOFT MAGNETIC MATERIAL AND DUST CORE - SUMITOMO ELECTRIC INDUSTRIES

Title:

SOFT MAGNETIC MATERIAL AND DUST CORE

Document Type and Number:

WIPO Patent Application WO/2005/096324

Kind Code:

A1

Abstract:

Disclosed is a soft magnetic material comprising a plurality of composite magnetic particles (30) respectively having a metal magnetic particle (10) and an insulating coating film (20) covering the surface of the metal magnetic particle (10) and containing at least one of a metal phosphate and an oxide, and a particulate lubricant which is added in an amount of not less than 0.001 mass% and not more than 0.1 mass% relative to the composite magnetic particles (30). By having such a constitution, the soft magnetic material exhibits excellent lubricity during pressing and desired magnetic characteristics can be attained after pressing.

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Inventors:

HIROSE KAZUHIRO (JP)
TOYODA HARUHISA (JP)
NISHIOKA TAKAO (JP)
IGARASHI NAOTO (JP)
MAEDA TORU (JP)
SHIMADA YOSHIYUKI (JP)

Application Number:

PCT/JP2005/005887

Publication Date:

October 13, 2005

Filing Date:

March 29, 2005

Export Citation:

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Assignee:

SUMITOMO ELECTRIC INDUSTRIES (JP)
HIROSE KAZUHIRO (JP)
TOYODA HARUHISA (JP)
NISHIOKA TAKAO (JP)
IGARASHI NAOTO (JP)
MAEDA TORU (JP)
SHIMADA YOSHIYUKI (JP)

International Classes:

B22F1/16; B22F3/00; H01F1/24; H01F1/33; H01F27/255; H01F41/02; (IPC1-7): H01F1/24; B22F1/02; B22F3/00; H01F1/33; H01F27/255; H01F41/02

Foreign References:

JP2005133148A	2005-05-26
JP2003510460A	2003-03-18
JP2001358005A	2001-12-26
JPH07245209A	1995-09-19
JP2003526693A	2003-09-09
JP2002217015A	2002-08-02
US20030047706A1	2003-03-13
US6706206B1	2004-03-16

Other References: