POWDER MAGNETIC CORE AND METHOD FOR PRODUCING SAME
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United States of America Patent
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Feb 9, 2017
app pub date -
Nov 27, 2014
filing date -
Dec 26, 2013
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Abstract
Provided is a powder magnetic core (1), including; a magnetic core main body (2) obtained by compression-molding raw material powder containing, as a main component, soft magnetic metal powder (3) having a surface coated with an insulating coating (4) having a decomposition temperature of 600° C. or more; and a sealing part (6) configured to seal inner pores of the magnetic core main body (2), in which: the magnetic core main body (2) has a relative density of 94.5% or more and 97% or less; and the powder magnetic core (1) has a porosity of 2.0% or less.
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