公开(公告)号：EP3376510A1

公开(公告)日：2018-09-19

申请号：EP17189580.8

申请日：2017-09-06

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Suetsuna, Tomohiro ,  Kinouchi, Hiroaki ,  Kawamoto, Takahiro

IPC分类号： H01F1/24 ,  H01F41/02 ,  H02K15/00

CPC分类号： C22C38/10 ,  B22F3/02 ,  B22F3/24 ,  B22F9/04 ,  B22F2003/248 ,  B22F2009/043 ,  B22F2009/048 ,  B22F2202/05 ,  B22F2301/35 ,  C21D6/007 ,  C21D6/008 ,  C21D8/0205 ,  C21D8/0247 ,  C21D9/52 ,  C22C38/02 ,  H01F1/24 ,  H01F1/26 ,  H01F41/0246 ,  H02K1/02 ,  H02K15/00

摘要： Provided is a plurality of flaky magnetic metal particles of the arrangements, each flaky magnetic metal particle having a flat surface provided with either or both of a plurality of concavities and a plurality of convexities arranged in a first direction, each concavity or convexity having a width of 0.1 µm or more, a length of 1 µm or more, and an aspect ratio of 2 or higher; and at least one first element selected from the group consisting of iron (Fe), cobalt (Co), and nickel (Ni), the flaky magnetic metal particles having an average thickness of between 10 nm and 100 µm inclusive and an average aspect ratio of between 5 and 10,000 inclusive.

公开(公告)号：EP2929963A4

公开(公告)日：2016-09-07

申请号：EP13859820

申请日：2013-12-05

申请人： UNIV SEVILLA ,  UNIV HUELVA

发明人： MONTES MARTOS JUAN MANUEL ,  CINTAS FÍSICO JESÚS ,  URBAN PETR ,  GÓMEZ CUEVAS FRANCISCO ,  TERNERO FERNÁNDEZ FATIMA

IPC分类号： B22F1/00 ,  B22F3/105 ,  B22F9/00 ,  B22F9/04 ,  C22C33/02 ,  H01F1/153 ,  H01F3/08 ,  H01F41/02

CPC分类号： B22F3/105 ,  B22F1/0044 ,  B22F9/002 ,  B22F9/04 ,  B22F2003/1051 ,  B22F2009/041 ,  B22F2009/042 ,  B22F2009/043 ,  B22F2009/048 ,  B22F2998/10 ,  C22C33/02 ,  C22C33/0285 ,  C22C2202/02 ,  H01F1/15333 ,  H01F1/1535 ,  H01F3/08 ,  H01F41/0246 ,  B22F1/0003

公开(公告)号：EP2975619A4

公开(公告)日：2016-03-09

申请号：EP14762415

申请日：2014-03-12

申请人： INTERMETALLICS CO LTD

发明人： UNE YASUHIRO ,  KUBO HIROKAZU ,  SAGAWA MASATO ,  SUGIMOTO SATOSHI ,  MATSUURA MASASHI ,  NAKAMURA MICHIHIDE

IPC分类号： H01F41/02 ,  B22F1/00 ,  B22F3/00 ,  B22F3/02 ,  B22F9/04 ,  C22C33/02 ,  C22C38/00 ,  H01F1/057 ,  H01F1/08

CPC分类号： H01F1/0577 ,  B22F1/0044 ,  B22F3/10 ,  B22F9/023 ,  B22F9/04 ,  B22F2009/048 ,  B22F2202/05 ,  B22F2999/00 ,  C22C33/02 ,  C22C33/0207 ,  C22C38/00 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C38/16 ,  C22C2202/02 ,  H01F41/0253 ,  B22F1/0018

公开(公告)号：EP2767992A4

公开(公告)日：2016-02-10

申请号：EP12840664

申请日：2012-10-09

申请人： TOYOTA MOTOR CO LTD

发明人： SAKUMA NORITSUGU ,  KISHIMOTO HIDEFUMI ,  MIYAMOTO NORITAKA ,  KATO AKIRA ,  MANABE AKIRA ,  ICHIGOZAKI DAISUKE ,  SHOJI TETSUYA ,  HARAKAWA SHOICHI

IPC分类号： H01F41/02 ,  B22F1/00 ,  C22C33/02 ,  C22C38/00 ,  H01F1/057 ,  H01F1/08

CPC分类号： H01F1/20 ,  B22F9/04 ,  B22F2009/048 ,  C22C33/0278 ,  C22C38/002 ,  C22C38/005 ,  C22C38/10 ,  C22C2202/02 ,  H01F1/0571 ,  H01F1/0577

公开(公告)号：EP2767992A8

公开(公告)日：2014-11-26

申请号：EP12840664.2

申请日：2012-10-09

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： SAKUMA, Noritsugu ,  KISHIMOTO, Hidefumi ,  MIYAMOTO, Noritaka ,  KATO, Akira ,  MANABE, Akira ,  ICHIGOZAKI, Daisuke ,  SHOJI, Tetsuya ,  HARAKAWA, Shoichi

IPC分类号： H01F41/02 ,  B22F1/00 ,  C22C33/02 ,  C22C38/00 ,  H01F1/057 ,  H01F1/08

CPC分类号： H01F1/20 ,  B22F9/04 ,  B22F2009/048 ,  C22C33/0278 ,  C22C38/002 ,  C22C38/005 ,  C22C38/10 ,  C22C2202/02 ,  H01F1/0571 ,  H01F1/0577

摘要： A method for producing magnetic powder for forming a sintered body that is a precursor of a rare-earth magnet. Provided is a method for producing magnetic powder for forming a sintered body that is a precursor of a rare-earth magnet, which can produce magnetic powder with a structure containing optimal nanosized crystal grains by accurately and efficiently sorting out magnetic powder containing no coarse grains in the structure thereof. A method for producing magnetic powder p for forming a sintered body S that is a precursor of a rare-earth magnet, the sintered body S including an Nd-Fe-B-based main phase with a nanocrystalline structure, and a grain boundary phase around the main phase, and the rare-earth magnet being adapted to be formed by applying hot deformation processing to the sintered body S for imparting anisotropy thereto and diffusing an alloy for improving coercivity therein, the method including discharging a metal melt onto a chill roll R to produce a quenched ribbon B, and grinding the quenched ribbon B into grains in the size range of 50 to 1000 µm to produce magnetic powder in the mass range of 0.0003 to 0.3 mg; conducting a test to see whether or not the magnetic powder in the mass range adsorbs onto a magnet with a surface magnetic flux density of 2 mT or less, and sorting out magnetic powder p that has not adsorbed onto the magnet, as the magnetic powder for forming the sintered body S.

公开(公告)号：EP1898432A3

公开(公告)日：2012-07-18

申请号：EP07017491.7

申请日：2007-09-06

申请人： Daido Tokushuko Kabushiki Kaisha

发明人： Esaki, Junichi c/o Daido Tokushuko Kabushiki Kaisha ,  Yoshida, Hiroaki c/o Daido Tokushuko Kabushiki Kaisha ,  Isogawa, Sachihiro c/o Daido Tokushuko Kabushiki Kaisha

IPC分类号： H01F41/02 ,  H01F7/02 ,  B22F3/20

CPC分类号： H01F41/0253 ,  B22F3/20 ,  B22F2009/048 ,  B22F2998/10 ,  H01F7/02 ,  Y10S72/70 ,  B22F9/06 ,  B22F9/04 ,  B22F3/02 ,  B22F3/14 ,  B22F3/17 ,  B22F3/18

摘要： The invention relates to a process of producing a permanent magnet, which comprises extruding a preform (18) to form a plate-shaped permanent magnet (20), in which the preform (18) is extruded in such a way that a dimension of a.cross section of the preform (18) is reduced in an X-direction and enlarged in a Y-direction perpendicular to the X-direction. The invention also relates to a plate-shaped permanent magnet (20) formed by extruding a preform, in which the preform (18) is extruded in such a way that a dimension of a cross section of the preform (18) is reduced in an X-direction and enlarged in a Y-direction perpendicular to the X-direction, whereby said permanent magnet (20) has a strain ratio ε 2 /ε 1 with respect to the preform (18) in a range of 0.2 to 3.5, in which ε 1 is a strain in the direction of the extrusion of the preform (18) and ε 2 is a strain in the Y-direction.

公开(公告)号：EP2290660A1

公开(公告)日：2011-03-02

申请号：EP09746575.1

申请日：2009-05-12

申请人： Hitachi Metals, Ltd.

发明人： NISHIMURA Kazunori

IPC分类号： H01F1/22 ,  H01F1/153 ,  H01F1/20 ,  H01F3/08 ,  H01F27/255

CPC分类号： H01F41/0226 ,  B22F1/0003 ,  B22F2999/00 ,  H01F1/15308 ,  H01F1/15366 ,  H01F1/15375 ,  H01F3/08 ,  H01F27/255 ,  H01F41/0246 ,  B22F9/04 ,  B22F9/082 ,  B22F2009/048 ,  B22F1/0055

摘要： The present invention provides a dust core including, as principal components, a pulverized powder of an Fe-based amorphous alloy ribbon corresponding to a first magnetic body; and a Cr-containing Fe-based amorphous alloy atomized spherical powder corresponding to a second magnetic body, and the pulverized powder is in the shape of a thin plate having two principal planes opposing each other, and assuming that a minimum dimension along a plane direction of the principal planes is a grain size, the pulverized powder includes a pulverized powder with a grain size more than twice and not more than six times as large as a thickness of the pulverized powder in a proportion of 80 mass% or more of the whole pulverized powder and includes a pulverized powder with a grain size not more than twice as large as the thickness of the pulverized powder in a portion of 20 mass% or less of the whole pulverized powder, and the atomized spherical powder has a grain size not more than a half of the thickness of the pulverized powder and not less than 3 µm.

摘要翻译： 本发明提供一种防尘芯，其特征在于，以与第一磁性体相对应的Fe系非晶质合金带的粉碎粉为主要成分， 以及对应于第二磁性体的含Cr的Fe基非晶合金雾化的球形粉末，并且粉碎的粉末是具有彼此相对的两个主平面的薄板的形状，并且假设沿着平面方向的最小尺寸 主晶面为粒径，粉碎粉末的粉末粒径为粉碎粉末的2倍以上6倍以上，粉碎粉末的整体比例为80质量％以上 粉碎粉末，并且包含粉碎粉末，粉碎粉末的粉碎粉末的粉末粒度不超过粉碎粉末的20质量％以下的20质量％以下的粒径，粉末状球状粉末的粒径不大 不到粉碎粉末的一半，不小于3μm。

公开(公告)号：EP2193864A1

公开(公告)日：2010-06-09

申请号：EP08833241.6

申请日：2008-09-18

申请人： Showa Denko K.K.

发明人： NAKAJIMA, Kenichiro

IPC分类号： B22F9/04 ,  C22C33/02 ,  H01F41/02

CPC分类号： H01F1/0577 ,  B22D11/0611 ,  B22D11/126 ,  B22F1/0055 ,  B22F1/0085 ,  B22F2009/048 ,  C22C33/02 ,  C22C2202/02 ,  H01F41/0266

摘要： The object of the present invention is to provide a production apparatus which can produce an alloy which can produce a rare-earth magnet having high coercive force, and the present invention provide an apparatus for producing an alloy, wherein the device includes at least a casting device 2 for casting a molten alloy by the SC method, a crushing device 21 for crushing cast alloy after casting, a heat-retaining device 3 for maintaining temperature of cast alloy flakes N supplied from the crushing device, and a storage container 5 for storing the cast alloy flakes N after maintaining the temperature; the heat-retaining device includes a heat-retaining container 32 for storing the cast alloy flakes N supplied from the crushing device 21, a temperature retaining heater for maintaining the temperature of the cast alloy flakes N in the heat-retaining container 32, an inclination device 33 for sending the cast alloy flakes N in the heat-retaining container 43 to the storage container 5 by inclining the heat-retaining container 32.

摘要翻译： 本发明的目的是提供一种能够生产能够生产具有高矫顽力的稀土类磁体的合金的制造装置，本发明提供一种合金的制造装置，其中该装置至少包括铸造 用于通过SC法铸造熔融合金的装置2，用于在铸造后粉碎铸造合金的破碎装​​置21，用于保持从破碎装置供给的铸造合金薄片N的温度的保温装置3和用于储存的储存容器5 维持温度后铸造合金鳞片N; 保温装置包括用于储存从破碎装置21供应的铸造合金薄片N的保温容器32，用于保持保温容器32中的铸造合金薄片N的温度的保温加热器， 装置33，用于通过使保温容器32倾斜来将保温容器43中的铸造合金薄片N发送到储存容器5。

公开(公告)号：EP3200209A4

公开(公告)日：2018-07-25

申请号：EP15793661

申请日：2015-09-18

申请人： NDFEB CORP

发明人： SAGAWA MASATO ,  HAYASHI SHINICHI

IPC分类号： H01F41/02 ,  B22F3/00 ,  B22F3/02 ,  B22F3/03 ,  B30B15/02 ,  B30B15/30 ,  C22C38/00 ,  C22C38/06 ,  C22C38/10 ,  C22C38/16 ,  H01F1/055 ,  H01F1/057 ,  H01F1/08

CPC分类号： H01F1/0577 ,  B22F1/0011 ,  B22F1/0062 ,  B22F3/003 ,  B22F3/004 ,  B22F3/03 ,  B22F3/1017 ,  B22F9/04 ,  B22F2009/044 ,  B22F2301/355 ,  B22F2302/45 ,  B22F2303/01 ,  B22F2304/10 ,  B22F2998/10 ,  B30B15/022 ,  B30B15/302 ,  C22C38/00 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C38/16 ,  C22C2202/02 ,  H01F1/0551 ,  H01F1/0557 ,  H01F1/0573 ,  H01F1/086 ,  H01F41/0273 ,  B22F1/007 ,  B22F9/023 ,  B22F2009/048 ,  B22F9/08 ,  B22F2201/013 ,  B22F3/10 ,  B22F2202/05

摘要： Provided is a production method and a production device for producing each of the rare earth sintered magnet sintered bodies without carrying a mold in a sintering furnace. The production method comprises a powder feeding step of feeding an alloy powder into a mold having side walls divided into two or more sections; a filling step of filling the alloy powder into the mold to prepare a filled molded-body; an orienting step of orienting the alloy powder in the filled molded-body by applying a magnetic field to the filled molded-body to prepare an oriented filled-molded-body; a retrieving step of detaching the side walls of the mold from the oriented filled-molded-body and retrieving the oriented filled-molded-body from the mold; and a sintering step of sintering the retrieved oriented filled-molded-body, wherein the filling step and the orienting step are performed at different locations, and it is preferred that a pulsed magnetic field is applied in the orienting step and inside of the mold is partitioned into a plurality of cavities by partitions.

公开(公告)号：EP3121820A1

公开(公告)日：2017-01-25

申请号：EP14838851.5

申请日：2014-03-19

申请人： Kabushiki Kaisha Toshiba

发明人： HORIUCHI, Yosuke ,  SAKURADA, Shinya ,  OKAMOTO, Keiko ,  HAGIWARA, Masaya ,  KOBAYASHI, Tsuyoshi ,  ENDO, Masaki ,  KOBAYASHI, Tadahiko ,  SANADA, Naoyuki

IPC分类号： H01F1/055 ,  B22F3/00 ,  B22F3/24 ,  C22C19/07 ,  C22C30/02 ,  C22F1/00 ,  C22F1/18 ,  H01F1/08

CPC分类号： H01F1/055 ,  B22F9/08 ,  B22F2009/041 ,  B22F2009/043 ,  B22F2009/044 ,  B22F2009/048 ,  B22F2998/10 ,  B22F2999/00 ,  C22C1/0441 ,  C22C19/07 ,  C22C30/02 ,  C22F1/10 ,  H01F1/0536 ,  H01F1/0557 ,  H01F1/0596 ,  H02K1/02 ,  H02K1/276 ,  H02K1/2766 ,  B22F9/04 ,  B22F3/02 ,  B22F3/1017 ,  B22F3/1028 ,  B22F2003/248 ,  B22F2202/05

摘要： The invention provides a high-performance permanent magnet. The permanent magnet has a composition that is expressed by a composition formula R p Fe q M r Cu t Co 100-p-q-r-t , where R is at least one element selected from a rare earth element, M is at least one element selected from the group consisting of Zr, Ti, and Hf, p is a number satisfying 10.8 ≤ p ≤ 12.5 atomic percent, q is a number satisfying 25 ≤ q ≤ 40 atomic percent, r is a number satisfying 0.88 ≤ r ≤ 4.5 atomic percent, and t is a number satisfying 3.5 ≤ t ≤ 13.5 atomic percent. The permanent magnet also has a metallic structure that includes a main phase having a Th 2 Zn 17 crystal phase, and a Cu-M rich phase having a higher Cu concentration and a higher M concentration than the main phase.

摘要翻译： 本发明提供一种高性能永久磁铁。 永磁体具有由组成式R p Fe q M r Cu t Co 100-pqrt表示的组成，其中R是选自稀土元素中的至少一种元素，M是选自基团中的至少一种元素 由Zr，Ti和Hf组成，p是满足10.8‰¤p‰12.5原子％的数，q是满足25‰¤‰¤40原子％的数，r是满足0.88‰¤r‰的数 4.5原子％，t为满足3.5‰¤‰13.5原子％的数。 永久磁铁也具有金属结构，其包括具有Th 2 Zn 17结晶相的主相和具有比主相更高的Cu浓度和更高的M浓度的Cu-M相。