发明名称 |
DUST CORE, COIL COMPONENT USING SAME AND PROCESS FOR PRODUCING DUST CORE |
摘要 |
Provided are: a metal powder core having a configuration suitable for core loss reduction and strength improvement; a coil component employing this; and a fabrication method for metal powder core. The metal powder core is obtained by dispersing Cu powder among soft magnetic material powder comprising pulverized powder of Fe-based soft magnetic alloy and atomized powder of Fe-based soft magnetic alloy and then by performing compaction. The fabrication method for metal powder core includes: a mixing step of mixing together soft magnetic material powder containing thin-leaf shaped pulverized powder of Fe-based soft magnetic alloy and atomized powder of Fe-based soft magnetic alloy, Cu powder, and a binder and thereby obtaining a mixture; a forming step of performing pressure forming on the mixture obtained at the mixing step; and a heat treatment step of annealing a formed article obtained at the forming step. |
申请公布号 |
EP3024000(A1) |
申请公布日期 |
2016.05.25 |
申请号 |
EP20140825820 |
申请日期 |
2014.07.17 |
申请人 |
HITACHI METALS, LTD. |
发明人 |
KATO, TETSURO;NOGUCHI, SHIN;NISHIMURA, KAZUNORI |
分类号 |
H01F1/24;H01F1/153;H01F1/26;H01F3/08;H01F27/24;H01F27/255;H01F37/00;H01F41/02 |
主分类号 |
H01F1/24 |
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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