Soft magnetic metal powder, method for producing the same, and soft magnetic metal dust core
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United States of America Patent
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Dec 26, 2023
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May 16, 2019
app pub date -
Nov 13, 2018
filing date -
Nov 16, 2017
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Abstract
A method for producing soft magnetic metal powder includes: a raw material powder preparing step of preparing metal raw material powder having metal raw material particles including iron, silicon, and boron; a mixture step of mixing the metal raw material powder and a carbon source substance and obtaining mixed powder; and a heat treatment step of performing heat treatment on the mixed powder in a non-oxidizing atmosphere containing nitrogen at a heat treatment temperature of 1,250° C. or higher and making the metal raw material particles spherical.
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