发明名称 |
METHOD AND DEVICE FOR MELTING RARE EARTH MAGNET SCRAP AND PRIMARY MOLTEN ALLOY OF RARE EARTH MAGNET |
摘要 |
<p>A magnet for increasing a yield attained during a process in which, when separating metals from scraps occurring during a rare earth magnet production process, alloy materials for rare earth magnet are melt-refined so as to positively separate oxides and then subjected to a secondary melting by using a vacuum high-frequency induction melting furnace; wherein part or all of the scraps (3) are charged into an insulated (2) water-cooled crucible (1) or a refractory crucible (7, 21, 22) and subjected to twin plasma arc (10A, 10b) melting and tungsten arc or migration arc (15) melting.</p> |
申请公布号 |
WO0039514(A9) |
申请公布日期 |
2001.10.04 |
申请号 |
WO1999JP07264 |
申请日期 |
1999.12.24 |
申请人 |
SHOWA DENKO K.K.;HIROSE, YOICHI;GO, TATSUO;RENDA, MIKI;KAWAMURA, NOBUHIKO;OTAKI, ATSUSHI |
发明人 |
HIROSE, YOICHI;GO, TATSUO;RENDA, MIKI;KAWAMURA, NOBUHIKO;OTAKI, ATSUSHI |
分类号 |
C22B7/00;C22B9/22;C22B59/00;F27B3/08;F27B3/24;(IPC1-7):F27B14/14 |
主分类号 |
C22B7/00 |
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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