Composite soft magnetic material having low magnetic strain and high magnetic flux density, method for producing same, and electromagnetic circuit component

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United States of America Patent

PATENT NO 9773597
SERIAL NO

13979988

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Abstract

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A composite soft magnetic material having low magnetostriction and high magnetic flux density contains: pure iron-based composite soft magnetic powder particles that are subjected to an insulating treatment by a Mg-containing insulating film or a phosphate film; and Fe—Si alloy powder particles including 11%-16% by mass of Si. A ratio of an amount of the Fe—Si alloy powder particles to a total amount is in a range of 10%-60% by mass. A method for producing the composite soft magnetic material comprises the steps of: mixing a pure iron-based composite soft magnetic powder, and the Fe—Si alloy powder in such a manner that a ratio of the Fe—Si alloy powder to a total amount is in a range of 10%-60%; subjecting a resultant mixture to compression molding; and subjecting a resultant molded body to a baking treatment in a non-oxidizing atmosphere.

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Patent Owner(s)

Patent OwnerAddress
DIAMET CORPORATIONNIIGATA-SHI NIIGATA 950-8640

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Igarashi, Kazunori Kitamoto, JP 13 38
Ikeda, Hiroaki Kitamoto, JP 198 3714
Tanaka, Hiroshi Naka, JP 1068 12184

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