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1. 发明公开

EP2460609A4 METHOD AND DEVICE FOR RECOVERING HYDROGEN PULVERIZATION DUST OF RAW-MATERIAL ALLOY FOR RARE-EARTH MAGNET 有权
标题翻译： VERFAHREN UND VORRICHTUNG ZUR WIEDERGEWINNUNG VON WASSERSTOFFPULVERISIERUNGSSTAUB AUS EINER ROHMATERIALLEGIERUNGFÜREINEN SELTENERAGAGNETEN
公开(公告)号：EP2460609A4
公开(公告)日：2017-08-09
申请号：EP10804236
申请日：2010-07-07
申请人： HITACHI METALS LTD
发明人： NAKAYAMA SHOJI , SONODA KAZUHIRO , SANAI JYUNICHI
IPC分类号： C22B7/00 , B22F9/02 , C22B59/00 , C22C28/00 , H01F1/055 , H01F1/057
CPC分类号： B22F9/16 , B22F8/00 , B22F2999/00 , C22B7/001 , C22B59/00 , C22C28/00 , C22C2202/02 , H01F1/053 , H01F1/0553 , H01F1/0573 , H01F41/00 , Y02P10/214 , Y02P10/24 , Y02W30/541 , B22F9/023
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.
摘要翻译：用于回收稀土类磁铁用原料合金的氢粉碎粉末的方法和装置，其能够降低氢粉碎后的氢粉碎粉末被粉碎的可能性，所述方法和装置保留在回收室中，并且能够通过减少处理容器50通过惰性气体引入装置12将惰性气体引入回收室40中之后通过输入口从处理室运入回收室40，处理容器50内的稀土类磁铁用合金原料合金，在通过真空排气装置33将回收室40内的压力减压后，向回收室40内排出，然后通过惰性气体导入装置向回收室40内导入惰性气体如图12所示，稀土类磁铁用原料合金从加压后的排出口40a回收到回收容器50内在回收室40中通过惰性气体被设定为预定压力。

2. 发明公开

EP2671958A4 METHOD FOR PRODUCING R-T-B SYSTEM SINTERED MAGNET 有权
公开(公告)号：EP2671958A4
公开(公告)日：2018-02-21
申请号：EP12742724
申请日：2012-01-26
申请人： HITACHI METALS LTD
发明人： MOCHIZUKI MITSUAKI , NAKAYAMA SHOJI , SONODA KAZUHIRO
IPC分类号： C22C33/02 , B02C19/06 , B02C19/18 , B02C21/00 , B22F1/00 , B22F3/00 , B22F3/02 , B22F9/04 , C22C38/00 , H01F1/057 , H01F41/02
CPC分类号： H01F41/0246 , B22F2009/044 , B22F2998/10 , B22F2999/00 , C22C1/02 , C22C38/002 , C22C38/005 , C22C38/06 , C22C38/10 , C22C38/16 , H01F1/0573 , H01F1/0577 , H01F41/0273 , B22F9/023 , B22F2009/042 , B22F2201/20 , B22F2201/10
摘要： The present invention provides a producing method of R-T-B-based sintered magnets in which, the recovery chamber 40 includes inert gas introducing means 42, evacuating means 43, a carry-in port, a discharge port 40a, and a recovery container 60. The recovery step includes a carrying-in step of conveying a processing container 50 into the recovery chamber 40, a discharging step of discharging coarsely pulverized powder in the processing container 50 into the recovery chamber 40, a gas introducing step of introducing inert gas into the recovery chamber 40, and an alloy accommodating step of recovering the coarsely pulverized powderinto the recovery container 60. Addition of pulverization aid is carried out in the alloy accommodating step. A remaining amount of coarsely pulverized powder in the recovery chamber 40, an oxygen-containing amount of the R-T-B-based sintered magnet is reduced, and magnetic properties are enhanced.

3. 发明公开

EP2765585A4 REGENERATION METHOD AND REGENERATION APPARATUS FOR POWDER FOR RARE EARTH SINTERED MAGNET 有权转让
标题翻译：再生产再次发展VORRICHTUNGFÜRPULVERFÜRGESINTERTE SELTENERDMAGNETEN
公开(公告)号：EP2765585A4
公开(公告)日：2015-07-01
申请号：EP12835343
申请日：2012-09-24
申请人： HITACHI METALS LTD
发明人： NAKAYAMA SHOJI , MOCHIZUKI MITSUAKI
IPC分类号： H01F41/00 , B02C18/06 , B02C23/36 , B22F9/00 , B22F9/04 , H01F1/057 , H01F1/06 , H01F41/02
CPC分类号： B22F9/04 , B02C18/06 , B02C23/36 , B22F2009/001 , B22F2009/042 , B22F2009/046 , H01F1/0577 , H01F41/0253

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