发明名称 |
PERMANENT MAGNET SOURCE POWDER FABRICATION METHOD, PERMANENT MAGNET FABRICATION METHOD, AND PERMANENT MAGNET RAW MATERIAL POWDER INSPECTION METHOD |
摘要 |
A method for producing a raw material powder of a permanent magnet, which includes the steps of: preparing a material powder of a permanent magnet, measuring magnetic characteristics of the material powder of the permanent magnet, and judging the quality of the material powder as the raw material powder based on a preliminarily determined relation between magnetic characteristics and the structure of the material powder. A method for producing a permanent magnet, which includes the step of integrating material powders judged as good in the step of judging the quality as raw material powders by the method for producing a raw material powder of a permanent magnet. An method for inspecting a permanent magnet material powder, which includes transmitting a magnetic field to a material powder of a permanent magnet, receiving the magnetic field from the material powder, and measuring a magnetic field difference between the transmitted magnetic field and the received magnetic field as magnetic characteristics of the material powder. |
申请公布号 |
EP3007191(A1) |
申请公布日期 |
2016.04.13 |
申请号 |
EP20130885243 |
申请日期 |
2013.05.24 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
SAKUMA, NORITSUGU;KISHIMOTO, HIDEFUMI;NOZAKI, MIKIYA;YANO, MASAO;SHOJI, TETSUYA;MANABE, AKIRA |
分类号 |
H01F1/06;B22F3/14;H01F1/057;H01F1/08 |
主分类号 |
H01F1/06 |
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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