MAGNETIC CORE AND ITS MANUFACTURING METHOD - SUMITOMO OSAKA CEMENT CO LTD

Title:

MAGNETIC CORE AND ITS MANUFACTURING METHOD

Document Type and Number:

Japanese Patent JP2005064422

Kind Code:

A

Abstract:

To provide a magnetic core using a hydraulic composition which has superior formability (finely molding performance), heat resistance, corrosion resistance, mechanical characteristics (strength, impact resistance, dimensional stability etc.), and magnetic characteristics (high magnetic permeability, low core loss, good saturation magnetic flux density etc.), and to provide its manufacturing method.

The magnetic core is a compact containing magnetic powder and the hydraulic composition. Preferably in the core, the hydraulic composition is filled in every gap between magnetic powders, and further preferably in the core, the compounding ratio of the magnetic powder and the hydraulic composition is the magnetic powder 10-90 vol.% and the hydraulic composition 90-10 vol.%. The method of manufacturing the magnetic core includes a process for autoclave curing after molding.

Inventors:

SAKAKI TETSUYA
OTSUKA HIDEKI
KANEYOSHI TAKAMASA
SHIMADA YASUHIKO
SUZUKI YUJI

Application Number:

JP2003296181A

Publication Date:

March 10, 2005

Filing Date:

August 20, 2003

Export Citation:

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Assignee:

SUMITOMO OSAKA CEMENT CO LTD

International Classes:

C04B14/30; B28B3/20; B28B11/24; C04B14/34; C04B14/36; C04B28/00; H01F27/255; H01F41/02; C04B111/90; (IPC1-7): H01F27/255; B28B3/20; B28B11/24; C04B14/30; C04B14/34; C04B14/36; C04B28/00; H01F41/02

Attorney, Agent or Firm:

Tamura

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