-
公开(公告)号：US20120181476A1
公开(公告)日：2012-07-19
申请号：US13499549
申请日：2011-03-28
申请人： Izumi Ozeki , Katsuya Kume , Keisuke Hirano , Tomohiro Omure , Keisuke Taihaku , Toshinobu Hoshino , Takashi Ozaki
发明人： Izumi Ozeki , Katsuya Kume , Keisuke Hirano , Tomohiro Omure , Keisuke Taihaku , Toshinobu Hoshino , Takashi Ozaki
CPC分类号： C22C33/0278 , B22F2998/10 , C22C38/002 , C22C38/005 , H01F1/0572 , H01F1/0577 , H01F1/086 , H01F41/0293 , B22F9/04 , B22F3/02 , B22F3/101
摘要： There are provided a permanent magnet and a manufacturing method thereof capable of efficiently concentrating traces of Dy or Tb in grain boundaries of the magnet and sufficiently improving coercive force due to Dy or Tb while reducing amount of Dy or Tb to be used.To fine powder of milled neodymium magnet material is added an organometallic compound solution containing an organometallic compound expressed with a structural formula of M-(OR)x (M represents Dy or Tb, R represents a substituent group consisting of a straight-chain or branched-chain hydrocarbon, x represents an arbitrary integer) so as to uniformly adhere the organometallic compound to particle surfaces of the neodymium magnet powder. Thereafter, a compact body compacted through powder compaction is held for several hours in hydrogen atmosphere at 200 through 900 degrees Celsius for a hydrogen calcination process. Thereafter, through sintering process, the compact body is formed into a permanent magnet.
摘要翻译： 提供了能够有效地将Dy或Tb的痕迹集中在磁体的晶界中并充分提高由Dy或Tb引起的矫顽力同时减少所用的Dy或Tb的量的永磁体及其制造方法。 向研磨的钕磁铁材料的细粉末中加入含有以结构式M-（OR）x表示的有机金属化合物的有机金属化合物溶液（M表示Dy或Tb，R表示由直链或支链的 链烃，x表示任意的整数），以使有机金属化合物均匀地附着于钕磁体粉末的粒子表面。 此后，通过粉末压实压实的紧凑体在200-900摄氏度的氢气气氛中保持数小时，以进行氢煅烧。 此后，通过烧结工序，将致密体形成为永磁体。
-
公开(公告)号：US20120187329A1
公开(公告)日：2012-07-26
申请号：US13499623
申请日：2011-03-28
申请人： Izumi Ozeki , Katsuya Kume , Keisuke Hirano , Tomohiro Omure , Keisuke Taihaku , Toshinobu Hoshino , Takashi Ozaki
发明人： Izumi Ozeki , Katsuya Kume , Keisuke Hirano , Tomohiro Omure , Keisuke Taihaku , Toshinobu Hoshino , Takashi Ozaki
CPC分类号： C22C38/002 , C22C38/005 , C22C2202/02 , H01F1/0572 , H01F1/0577 , H01F1/086 , H01F41/0266 , H01F41/0293
摘要： There are provided a permanent magnet and a manufacturing method thereof capable of densely sintering the entirety of the magnet without making a gap between a main phase and a grain boundary phase in the sintered magnet. To fine powder of milled neodymium magnet is added an organometallic compound solution containing an organometallic compound expressed with a structural formula of M-(OR)X (M represents Dy or Tb, R represents a substituent group consisting of a straight-chain or branched-chain hydrocarbon, X represents an arbitrary integer) so as to uniformly adhere the organometallic compound to particle surfaces of the neodymium magnet powder. Thereafter, a compact body formed by powder compaction is held for several hours in hydrogen atmosphere at 200 through 900 degrees Celsius for calcination process in hydrogen. Thereafter, through sintering process, the compacted-state calcined body is formed into a permanent magnet.
摘要翻译： 提供了一种永磁体及其制造方法，其能够在烧结磁体中在主相和晶界相之间形成间隙而密集地烧结整个磁体。 向研磨的钕磁体的细粉末中加入含有以结构式M-（OR）X表示的有机金属化合物的有机金属化合物溶液（M表示Dy或Tb，R表示由直链或支链的 链状烃，X表示任意的整数），以使有机金属化合物均匀地附着于钕磁体粉末的粒子表面。 此后，通过粉末压实形成的紧凑体在氢气氛中在200-900摄氏度下在氢气中煅烧过程保持数小时。 此后，通过烧结工序，将压实状态的煅烧体形成为永磁体。
-
公开(公告)号：US09048014B2
公开(公告)日：2015-06-02
申请号：US13499457
申请日：2011-03-28
申请人： Izumi Ozeki , Katsuya Kume , Keisuke Hirano , Tomohiro Omure , Keisuke Taihaku , Toshinobu Hoshino , Takashi Ozaki
发明人： Izumi Ozeki , Katsuya Kume , Keisuke Hirano , Tomohiro Omure , Keisuke Taihaku , Toshinobu Hoshino , Takashi Ozaki
CPC分类号： H01F1/0572 , C22C1/02 , C22C33/0278 , C22C2202/02 , H01F1/0577 , H01F1/086 , H01F41/0266 , H01F41/0293
摘要： There are provided a permanent magnet and a manufacturing method thereof capable of decreasing an activity level of a calcined body activated by a calcination process. To fine powder of milled neodymium magnet is added an organometallic compound solution containing an organometallic compound expressed with a structural formula of M−(OR)x (M represents Dy or Tb, R represents a substituent group consisting of a straight-chain or branched-chain hydrocarbon, x represents an arbitrary integer) so as to uniformly adhere the organometallic compound to particle surfaces of the neodymium magnet powder. Thereafter, desiccated magnet powder is held for several hours in hydrogen atmosphere at 200 through 900 degrees Celsius. Thereafter, the powdery calcined body calcined through the calcination process in hydrogen is held for several hours in vacuum atmosphere at 200 through 600 degrees Celsius for a dehydrogenation process. Thereafter, through powder compaction and sintering process, the powdery calcined body is formed into a permanent magnet.
摘要翻译： 提供了能够降低通过煅烧过程活化的煅烧体的活性水平的永磁体及其制造方法。 向研磨的钕磁体的细粉末中加入含有以结构式M-（OR）x表示的有机金属化合物的有机金属化合物溶液（M表示Dy或Tb，R表示由直链或支链的 链状烃，x表示任意的整数），以使有机金属化合物均匀地附着于钕磁体粉末的粒子表面。 此后，将干燥的磁铁粉末在200-900摄氏度的氢气氛中保持数小时。 此后，通过煅烧工序在氢气中煅烧的粉状煅烧体在真空度为200〜600摄氏度的条件下在脱氢工序中保持数小时。 此后，通过粉末压实和烧结工艺，将粉末状煅烧体形成永磁体。
-
公开(公告)号：US20120187612A1
公开(公告)日：2012-07-26
申请号：US13499318
申请日：2011-03-28
申请人： Izumi Ozeki , Katsuya Kume , Keisuke Hirano , Tomohiro Omure , Keisuke Taihaku , Toshinobu Hoshino , Takashi Ozaki
发明人： Izumi Ozeki , Katsuya Kume , Keisuke Hirano , Tomohiro Omure , Keisuke Taihaku , Toshinobu Hoshino , Takashi Ozaki
CPC分类号： H01F41/026 , B22F2998/10 , C22C38/002 , H01F1/0577 , H01F1/086 , H01F41/0266 , H01F41/0293 , B22F9/04 , B22F1/02 , B22F9/22 , B22F3/02 , B22F3/10
摘要： There are provided a permanent magnet and a manufacturing method thereof capable of densely sintering the entirety of the magnet without making a gap between a main phase and a grain boundary phase in the sintered magnet. To fine powder of milled neodymium magnet is added an organometallic compound solution containing an organometallic compound expressed with a structural formula of M-(OR)X (M represents Dy or Tb, R represents a substituent group consisting of a straight-chain or branched-chain hydrocarbon, X represents an arbitrary integer) so as to uniformly adhere the organometallic compound to particle surfaces of the neodymium magnet powder. Thereafter, desiccated magnet powder is held for several hours in hydrogen atmosphere at 200 through 900 degrees Celsius. Thereafter, the powdery calcined body calcined through the calcination process in hydrogen is held for several hours in vacuum atmosphere at 200 through 600 degrees Celsius for a dehydrogenation process. Thereafter, through powder compaction and sintering process, the powdery calcined body is formed into a permanent magnet.
摘要翻译： 提供了一种永磁体及其制造方法，其能够在烧结磁体中在主相和晶界相之间形成间隙而密集地烧结整个磁体。 向研磨的钕磁体的细粉末中加入含有以结构式M-（OR）X表示的有机金属化合物的有机金属化合物溶液（M表示Dy或Tb，R表示由直链或支链的 链状烃，X表示任意的整数），以使有机金属化合物均匀地附着于钕磁体粉末的粒子表面。 此后，将干燥的磁铁粉末在200-900摄氏度的氢气氛中保持数小时。 此后，通过煅烧工序在氢气中煅烧的粉状煅烧体在真空度为200〜600摄氏度的条件下在脱氢工序中保持数小时。 此后，通过粉末压实和烧结工艺，将粉末状煅烧体形成永磁体。
-
公开(公告)号：US20120187326A1
公开(公告)日：2012-07-26
申请号：US13499457
申请日：2011-03-28
申请人： Izumi Ozeki , Katsuya Kume , Keisuke Hirano , Tomohiro Omure , Keisuke Taihaku , Toshinobu Hoshino , Takashi Ozaki
发明人： Izumi Ozeki , Katsuya Kume , Keisuke Hirano , Tomohiro Omure , Keisuke Taihaku , Toshinobu Hoshino , Takashi Ozaki
CPC分类号： H01F1/0572 , C22C1/02 , C22C33/0278 , C22C2202/02 , H01F1/0577 , H01F1/086 , H01F41/0266 , H01F41/0293
摘要： There are provided a permanent magnet and a manufacturing method thereof capable of decreasing an activity level of a calcined body activated by a calcination process. To fine powder of milled neodymium magnet is added an organometallic compound solution containing an organometallic compound expressed with a structural formula of M−(OR)x (M represents Dy or Tb, R represents a substituent group consisting of a straight-chain or branched-chain hydrocarbon, x represents an arbitrary integer) so as to uniformly adhere the organometallic compound to particle surfaces of the neodymium magnet powder. Thereafter, desiccated magnet powder is held for several hours in hydrogen atmosphere at 200 through 900 degrees Celsius. Thereafter, the powdery calcined body calcined through the calcination process in hydrogen is held for several hours in vacuum atmosphere at 200 through 600 degrees Celsius for a dehydrogenation process. Thereafter, through powder compaction and sintering process, the powdery calcined body is formed into a permanent magnet.
摘要翻译： 提供了能够降低通过煅烧过程活化的煅烧体的活性水平的永磁体及其制造方法。 向研磨的钕磁体的细粉末中加入含有以结构式M-（OR）x表示的有机金属化合物的有机金属化合物溶液（M表示Dy或Tb，R表示由直链或支链的 链状烃，x表示任意的整数），以使有机金属化合物均匀地附着于钕磁体粉末的粒子表面。 此后，将干燥的磁铁粉末在200-900摄氏度的氢气氛中保持数小时。 此后，通过煅烧工序在氢气中煅烧的粉状煅烧体在真空度为200〜600摄氏度的条件下在脱氢工序中保持数小时。 此后，通过粉末压实和烧结工艺，将粉末状煅烧体形成永磁体。
-
公开(公告)号：US20120182108A1
公开(公告)日：2012-07-19
申请号：US13499568
申请日：2011-03-28
申请人： Izumi Ozeki , Katsuya Kume , Keisuke Hirano , Tomohiro Omure , Keisuke Taihaku , Takashi Ozaki
发明人： Izumi Ozeki , Katsuya Kume , Keisuke Hirano , Tomohiro Omure , Keisuke Taihaku , Takashi Ozaki
CPC分类号： H01F41/0266 , B22F2998/10 , C22C33/0278 , C22C2202/02 , H01F1/0572 , H01F1/0577 , H01F1/086 , B22F9/04 , B22F1/02 , B22F9/22 , B22F2003/248 , B22F3/02 , B22F3/10
摘要： There are provided a permanent magnet and a manufacturing method thereof capable of densely sintering the entirety of the magnet without making a gap between a main phase and a grain boundary phase in the sintered magnet. To fine powder of milled neodymium magnet is added an organometallic compound solution containing an organometallic compound expressed with a structural formula of M-(OR)x (M represents V, Mo, Zr, Ta, Ti, W or Nb, R represents a substituent group consisting of a straight-chain or branched-chain hydrocarbon, x represents an arbitrary integer) so as to uniformly adhere the organometallic compound to particle surfaces of the neodymium magnet powder. Thereafter, desiccated magnet powder is held for several hours in hydrogen atmosphere at 200 through 900 degrees Celsius. Thereafter, the powdery calcined body calcined through the calcination process in hydrogen is held for several hours in vacuum atmosphere at 200 through 600 degrees Celsius for a dehydrogenation process.
摘要翻译： 提供了一种永磁体及其制造方法，其能够在烧结磁体中在主相和晶界相之间形成间隙而密集地烧结整个磁体。 向研磨的钕磁体的细粉末中加入含有结构式为M-（OR）x（M表示V，Mo，Zr，Ta，Ti，W或Nb的有机金属化合物）的有机金属化合物溶液，R表示取代基 由直链或支链烃构成的基团，x表示任意的整数），以使有机金属化合物均匀地附着于钕磁体粉末的粒子表面。 此后，将干燥的磁铁粉末在200-900摄氏度的氢气氛中保持数小时。 此后，通过煅烧工序在氢气中煅烧的粉状煅烧体在真空度为200〜600摄氏度的条件下在脱氢工序中保持数小时。
-
公开(公告)号：US20120182104A1
公开(公告)日：2012-07-19
申请号：US13499400
申请日：2011-03-28
申请人： Izumi Ozeki , Katsuya Kume , Keisuke Hirano , Tomohiro Omure , Keisuke Taihaku , Takashi Ozaki
发明人： Izumi Ozeki , Katsuya Kume , Keisuke Hirano , Tomohiro Omure , Keisuke Taihaku , Takashi Ozaki
CPC分类号： H01F1/086 , B22F2998/10 , C22C2202/02 , H01F1/0577 , H01F41/0266 , B22F9/04 , B22F3/02 , B22F3/10
摘要： There are provided a permanent magnet and a manufacturing method thereof enabling carbon content contained in magnet particles to be reduced in advance before sintering even when wet milling is employed, and also the entirety of the magnet to be densely sintered without making a gap between a main phase and a grain boundary phase in the sintered magnet. Coarsely-milled magnet powder is further milled by a bead mill in an organic solvent. Thereafter, a compact body of compacted magnet powder is held for several hours in hydrogen atmosphere at 200 through 900 degrees Celsius to perform hydrogen calcination process. Thereafter, through sintering process, a permanent magnet 1 is formed.
摘要翻译： 提供一种永磁体及其制造方法，即使在使用湿磨时也能预先将烧结后的磁体粒子中的碳含量还原，并且在不形成主体 相和晶界相。 粗磨粉末通过珠磨机在有机溶剂中进一步研磨。 之后，在200〜900摄氏度的氢气氛中，将紧凑的致密体磁体保持数小时，进行氢煅烧。 此后，通过烧结处理，形成永磁体1。
-
公开(公告)号：US09039920B2
公开(公告)日：2015-05-26
申请号：US13499616
申请日：2011-03-28
申请人： Izumi Ozeki , Katsuya Kume , Keisuke Hirano , Tomohiro Omure , Keisuke Taihaku , Takashi Ozaki
发明人： Izumi Ozeki , Katsuya Kume , Keisuke Hirano , Tomohiro Omure , Keisuke Taihaku , Takashi Ozaki
CPC分类号： H01F41/0266 , B22F2998/00 , B22F2999/00 , C22C38/002 , C22C38/005 , C22C2202/02 , H01F1/0572 , H01F1/0577 , H01F1/086 , B22F9/22 , B22F2201/013 , B22F9/04
摘要： There are provided a permanent magnet and a manufacturing method thereof enabling carbon content contained in magnet particles to be reduced in advance before sintering even when wet milling is employed. Coarsely-milled magnet powder is further milled by a bead mill in a solvent together with an organometallic compound expressed with a structural formula of M-(OR)X (M represents V, Mo, Zr, Ta Ti W or Nb, R represents a substituent group consisting of a straight-chain or branched-chain hydrocarbon, X represents an arbitrary integer) so as to uniformly adhere the organometallic compound to particle surfaces of the magnet powder. Thereafter, a compact body of compacted magnet powder is held for several hours in hydrogen atmosphere at 200 through 900 degrees Celsius to perform hydrogen calcination process. Thereafter, through sintering process, a permanent magnet 1 is formed.
摘要翻译： 提供永磁体及其制造方法，即使在使用湿磨时也能预先在烧结前减少磁体颗粒中含有的碳含量。 粗粉碎的磁粉通过珠磨机在溶剂中与结构式为M-（OR）X（M表示V，Mo，Zr，Ta Ti W或Nb表示的有机金属化合物）进一步研磨，R表示 由直链或支链烃构成的取代基，X表示任意的整数），以使有机金属化合物均匀地附着在磁铁粉末的粒子表面。 之后，在200〜900摄氏度的氢气氛中，将紧凑的致密体磁体保持数小时，进行氢煅烧。 此后，通过烧结处理，形成永磁体1。
-
公开(公告)号：US09053846B2
公开(公告)日：2015-06-09
申请号：US13499338
申请日：2011-03-28
申请人： Izumi Ozeki , Katsuya Kume , Keisuke Hirano , Tomohiro Omure , Keisuke Taihaku , Takashi Ozaki
发明人： Izumi Ozeki , Katsuya Kume , Keisuke Hirano , Tomohiro Omure , Keisuke Taihaku , Takashi Ozaki
CPC分类号： H01F1/086 , B22F2009/042 , B22F2998/10 , B22F2999/00 , C22C33/0278 , C22C38/002 , H01F1/0572 , H01F1/0577 , H01F41/0266 , H01F41/0293 , B22F9/04 , B22F3/02 , B22F3/1017 , B22F2201/013
摘要： There are provided a permanent magnet and a manufacturing method thereof enabling carbon content contained in magnet particles to be reduced in advance before sintering even when wet milling is employed. Coarsely-milled magnet powder is further milled by a bead mill in a solvent together with an organometallic compound expressed with a structural formula of M−(OR)x (M includes at least one of neodymium, praseodymium, dysprosium and terbium, each being a rare earth element, R represents a substituent group consisting of a straight-chain or branched-chain hydrocarbon, x represents an arbitrary integer) so as to uniformly adhere the organometallic compound to particle surfaces of the magnet powder. Thereafter, a compact body of compacted magnet powder is held for several hours in hydrogen atmosphere at 200 through 900 degrees Celsius to perform hydrogen calcination process. Thereafter, through sintering process, a permanent magnet 1 is manufactured.
摘要翻译： 提供永磁体及其制造方法，即使在使用湿磨时也能预先在烧结前减少磁体颗粒中含有的碳含量。 通过珠磨机在溶剂中与结构式M-（OR）x表示的有机金属化合物进一步研磨粗粉末磁体粉末（M包括钕，镨，镝和铽中的至少一种，各自为 稀土元素，R表示由直链或支链烃构成的取代基，x表示任意的整数），以使有机金属化合物均匀地附着在磁铁粉末的粒子表面。 之后，在200〜900摄氏度的氢气氛中，将紧凑的致密体磁体保持数小时，进行氢煅烧。 然后，通过烧结工序制造永久磁铁1。
-
公开(公告)号：US09005374B2
公开(公告)日：2015-04-14
申请号：US13499560
申请日：2011-03-28
申请人： Izumi Ozeki , Katsuya Kume , Keisuke Hirano , Tomohiro Omure , Keisuke Taihaku , Takashi Ozaki
发明人： Izumi Ozeki , Katsuya Kume , Keisuke Hirano , Tomohiro Omure , Keisuke Taihaku , Takashi Ozaki
IPC分类号： H01F1/03 , C22C32/00 , C22C1/04 , B22F3/00 , C04B35/64 , H01F1/04 , H01F1/14 , C22C33/02 , B22F1/02 , C22C38/00 , H01F1/08 , H01F41/02 , H01F1/057
CPC分类号： C22C33/0278 , B22F1/02 , B22F2998/10 , C22C38/002 , C22C38/005 , H01F1/0572 , H01F1/0577 , H01F1/086 , H01F41/0266 , B22F9/04 , B22F9/22 , B22F9/30 , B22F3/02 , B22F3/10
摘要： There are provided a permanent magnet and a manufacturing method thereof capable of decreasing an activity level of a calcined body activated by a calcination process. To fine powder of milled neodymium magnet is added an organometallic compound solution containing an organometallic compound expressed with a structural formula of M-(OR)x (M represents V, Mo, Zr, Ta, Ti, W or Nb, R represents a substituent group consisting of a straight-chain or branched-chain hydrocarbon, x represents an arbitrary integer) so as to uniformly adhere the organometallic compound to particle surfaces of the neodymium magnet powder. Thereafter, desiccated magnet powder is held for several hours in hydrogen atmosphere at 200 through 900 degrees Celsius. Thereafter, the powdery calcined body calcined through the calcination process in hydrogen is held for several hours in vacuum atmosphere at 200 through 600 degrees Celsius for a dehydrogenation process.
摘要翻译： 提供了能够降低通过煅烧过程活化的煅烧体的活性水平的永磁体及其制造方法。 向研磨的钕磁体的细粉末中加入含有结构式为M-（OR）x（M表示V，Mo，Zr，Ta，Ti，W或Nb的有机金属化合物）的有机金属化合物溶液，R表示取代基 由直链或支链烃构成的基团，x表示任意的整数），以使有机金属化合物均匀地附着于钕磁体粉末的粒子表面。 此后，将干燥的磁铁粉末在200-900摄氏度的氢气氛中保持数小时。 此后，通过煅烧工序在氢气中煅烧的粉状煅烧体在真空度为200〜600摄氏度的条件下在脱氢工序中保持数小时。
-
-
-
-
-
-
-
-
-
搜索结果
45 条记录 (耗时 0.028 秒)
