发明申请
- 专利标题: METHOD AND DEVICE FOR RECOVERING HYDROGEN PULVERIZED POWDER OF RAW-MATERIAL ALLOY FOR RARE-EARTH MAGNET
- 专利标题(中): 用于回收原料合金的氢粉末粉末的方法和装置
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申请号: US13387825申请日: 2010-07-07
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公开(公告)号: US20120125155A1公开(公告)日: 2012-05-24
- 发明人: Shoji Nakayama , Kazuhiro Sonoda , Jyunichi Sanai
- 申请人: Shoji Nakayama , Kazuhiro Sonoda , Jyunichi Sanai
- 申请人地址: JP TOKYO
- 专利权人: HITACHI METALS, LTD.
- 当前专利权人: HITACHI METALS, LTD.
- 当前专利权人地址: JP TOKYO
- 优先权: JP2009-179576 20090731
- 国际申请: PCT/JP2010/061522 WO 20100707
- 主分类号: B22F9/16
- IPC分类号: B22F9/16
摘要:
A method and a device for recovering hydrogen pulverized powder of a raw-material alloy for rare-earth magnets capable of lowering a possibility that hydrogen pulverized powder after hydrogen was pulverized remains in a recovery chamber and capable of enhancing magnetic properties by reducing an amount of oxygen of an obtained rare-earth magnet, a processing container 50 is carried into a recovery chamber 40 from a processing chamber through a carry-in port after inert gas was introduced into the recovery chamber 40 by inert gas introducing means 12, the raw-material alloy for rare-earth magnets in the processing container 50 is discharged into the recovery chamber 40 after the pressure in the recovery chamber 40 was reduced by evacuating means 33 and thereafter, inert gas is introduced into the recovery chamber 40 by inert gas introducing means 12, and the raw-material alloy for rare-earth magnets is recovered into the recovery container 50 from an discharge port 40a after a pressure in the recovery chamber 40 was set to a predetermined pressure by inert gas.
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