COMPOSITE MAGNETIC MATERIAL, MAGNETIC COMPONENT AND ITS MANUFACTURING METHOD

Title:

COMPOSITE MAGNETIC MATERIAL, MAGNETIC COMPONENT AND ITS MANUFACTURING METHOD

Document Type and Number:

Japanese Patent JP2007067219

Kind Code:

A

Abstract:

To provide a composite magnetic material with an Ni-Fe alloy system material used as a metal magnetic-particle material of a ferrite-coated metal magnetic particle and having a high magnetic permeability by the appropriate selection of an Fe ratio of the material even in the state with a direct-magnetic field superimposed.

The composite magnetic material mainly comprises the ferrite-coated metal magnetic particle with the Ni-Fe alloy particle having 30 to 48 mass% Fe ratio of the Ni-Fe alloy particle coated by the ferrite. The magnetic parts comprise the composite magnetic material that is compression molded. The method for manufacturing the magnetic parts comprises the step of compression molding the ferrite-coated metal magnetic particle, and rapidly heating the obtained compression molded parts in an oxygen-bearing atmosphere.

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Inventors:

OKUDA SANEHIRO
UCHIDA SHINJI
SHIBATA KAZUYOSHI

Application Number:

JP2005252221A

Publication Date:

March 15, 2007

Filing Date:

August 31, 2005

Export Citation:

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Assignee:

FUJI ELECTRIC HOLDINGS

International Classes:

H01F1/33; B22F1/02; B22F3/00; C22C19/03; H01F3/08; H01F41/02

Domestic Patent References:

JPH04226003A	1992-08-14
JPH0393670A	1991-04-18
JP2001023811A	2001-01-26

Attorney, Agent or Firm:

Yoshikazu Tani
Kazuo Abe

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