DUST CORE POWDER, METHOD FOR MANUFACTURING DUST CORE POWDER, DUST CORE, AND METHOD FOR MANUFACTURING DUST CORE

Japanese Patent JP2023137624

A

To provide dust core powder to which further high heat treatment can be subjected and a method for manufacturing the same, and a dust core using the dust core powder and a method for manufacturing the same.SOLUTION: Dust core powder includes soft magnetic powder and tantalum alkoxide adhering to the surface of the soft magnetic powder. Such dust core powder can be manufactured using a manufacturing method including, after a tantalum adhesion step in which tantalum alkoxide is added to and mixed with soft magnetic powder, a heating step of heating the soft magnetic powder under an atmosphere at temperatures of 1,000°C or above.SELECTED DRAWING: Figure 1

JP2015028985	SOFT MAGNETIC MATERIAL COMPOSITION, METHOD FOR MANUFACTURING THE SAME, MAGNETIC CORE, AND COIL TYPE ELECTRONIC COMPONENT
WO/2006/001763	LUBRICANTS FOR INSULATED SOFT MAGNETIC IRON-BASED POWDER COMPOSITIONS
WO/2017/110545	POWDER FOR DUST CORES, METHOD FOR PRODUCING SAME, DUST CORE AND METHOD FOR PRODUCING DUST CORE

OSHIMA YASUO
FUKAZAWA MASAYUKI

JP2022043895A

September 29, 2023

March 18, 2022

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TAMURA SEISAKUSHO KK

H01F1/24; B22F1/00; B22F1/102; B22F1/14; B22F3/00; B22F3/24; H01F1/147; H01F27/255; H01F41/02

Mitsuharu Kiuchi
Koichi Okuma
Sadanori Katagiri
Kanako Kiuchi

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