Method of producing soft magnetic material, soft magnetic powder, and dust core
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United States of America Patent
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Mar 9, 2010
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app pub date -
Mar 29, 2005
filing date -
Mar 30, 2004
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Abstract
A method of producing a soft magnetic material includes the steps of preparing soft magnetic powder containing a plurality of soft magnetic particles etching the soft magnetic powder to remove surfaces of the soft magnetic particles and, after the etching step, heat-treating the soft magnetic powder in a finely divided state at a temperature of not less than 400° C. and not more than 900° C. By this method configured as above, desired magnetic characteristics can be obtained.
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