发明名称 |
Method for production of magnetic metal particles and apparatus therefor |
摘要 |
The present invention is directed to a method for a continuous mass-production, on an industrial scale at a high efficiency, of magnetic metal particles having excellent magnetic properties by preventing particle deformation and mutual sintering of the particles in a reduction process, and/or by preventing deterioration of the magnetic properties and unevenness in the properties, particularly in the saturation magnetization, upon oxidation in a stabilization process. In this method, an iron compound based on iron oxyhydroxide can be thermally dehydrated in a thermal dehydration process. These processes can be conducted using apparatuses of the present invention which have a gas flow reactor; a belt conveyor being installed in the reactor and having a gass-passable belt for transporting the material; a gas dispersion plate; and a heating means.
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申请公布号 |
US5470374(A) |
申请公布日期 |
1995.11.28 |
申请号 |
US19930118659 |
申请日期 |
1993.09.10 |
申请人 |
KAO CORPORATION |
发明人 |
NAKAMURA, HIROYUKI;HAMA, YOSHINORI;ARIKITA, SHUHEI;IKESHITA, SHINGO |
分类号 |
B22F1/00;B22F9/22;G11B5/706;H01F1/06;(IPC1-7):B22F9/22 |
主分类号 |
B22F1/00 |
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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