发明名称 |
IRON-BASE SOFT MAGNETIC POWDER FOR DUST CORES, MANUFACTURING METHOD THEREOF, AND DUST CORE |
摘要 |
Disclosed is an iron-based soft magnetic powder for dust core use, which includes an iron-based soft magnetic matrix powder and a phosphate conversion coating on a surface of the matrix powder. The phosphate conversion coating contains nickel element and has an aluminum content of equal to or less than that in the matrix powder. The iron-based soft magnetic powder has such excellent heat resistance as to maintain electrical insulation at satisfactory level even after subjected to a high-temperature heat treatment. |
申请公布号 |
EP2722118(A1) |
申请公布日期 |
2014.04.23 |
申请号 |
EP20120799858 |
申请日期 |
2012.06.15 |
申请人 |
KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.) |
发明人 |
HOSOKAWA MAMORU;URUSHIHARA WATARU;OHWAKI TAKESHI;KAMIJO TOMOTSUNA;HOJO HIROFUMI |
分类号 |
B22F1/02;B22F3/00;B22F3/24;C22C33/02;H01F1/20;H01F1/24;H01F1/26;H01F27/255;H01F41/02 |
主分类号 |
B22F1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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