| 发明名称 |
POWDER FOR MAGNETIC CORE, METHOD OF PRODUCING DUST CORE, DUST CORE, AND METHOD OF PRODUCING POWDER FOR MAGNETIC CORE |
| 摘要 |
A dust core includes soft magnetic particles, a first coating layer, a second coating layer, and a third coating layer. The first coating layer is made of aluminum oxide with which at least a part of surfaces of the soft magnetic particles are coated. The second coating layer is made of aluminum nitride with which at least a part of a surface of the first coating layer is coated. The third coating layer is made of low-melting-point glass with which at least a part of a surface of the second coating layer is coated. The low-melting-point glass has a softening point lower than an annealing temperature of the soft magnetic particles. |
| 申请公布号 |
US2016071636(A1) |
申请公布日期 |
2016.03.10 |
| 申请号 |
US201514847497 |
申请日期 |
2015.09.08 |
| 申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
OHTSUBO Masashi;Tani Masaaki;Hattori Takeshi;Hwang Junghwan;Hara Masashi;Tajima Shin;Saigusa Shinjiro;Ishii Kohei;Okamoto Daisuke;Takahashi Toshimitsu |
| 分类号 |
H01F1/33;C21D1/26;B22F1/00;B22F1/02;H01F1/20;C22C38/02;B22F3/24;B22F3/02;H01F41/02;C21D6/00;C22C38/06 |
主分类号 |
H01F1/33 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. A powder for a magnetic core comprising:
soft magnetic particles; an oxide layer made of aluminum oxide with which at least a part of surfaces of the soft magnetic particles are coated; and a nitride layer made of aluminum nitride with which at least a part of a surface of the oxide layer is coated. |
| 地址 |
Toyota-shi JP |
