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111. 发明申请

US20170140855A1 R-T-B BASED SINTERED MAGNET 审中-公开
公开(公告)号：US20170140855A1
公开(公告)日：2017-05-18
申请号：US15344245
申请日：2016-11-04
申请人： TDK CORPORATION
发明人： Atsushi TADA
IPC分类号： H01F1/053 , C22C38/16 , C22C38/10 , B22F3/16 , C21D3/06 , C21D1/74 , B22F9/04 , H01F1/08 , C22C38/00
CPC分类号： H01F1/0536 , B22F3/16 , B22F9/04 , B22F2009/044 , B22F2201/02 , B22F2202/05 , B22F2998/10 , B22F2999/00 , C21D1/74 , C21D3/06 , C22C38/002 , C22C38/005 , C22C38/10 , C22C38/16 , H01F1/0577 , H01F1/08 , B22F3/087 , B22F3/1007 , B22F2201/20 , B22F9/023 , B22F1/0085 , B22F2009/042 , B22F2003/248
摘要： An R-T-B based sintered magnet includes R2T14B crystal grains. A grain boundary formed by the two or more adjacent R2T14B crystal grains includes an R—N—O—C concentrated part having higher concentrations of “R”, N, O, and C than those in the R2T14B crystal grains. “R” of the R—N—O—C concentrated part includes Y. A ratio of Y atom to “R” atom in the R—N—O—C concentrated part is 0.65 or more and 1.00 or less. A ratio of O atom to “R” atom in the R—N—O—C concentrated part is more than 0 and 0.20 or less. A ratio of N atom to “R” atom in the R—N—O—C concentrated part is 0.03 or more and 0.15 or less.

112. 发明授权

US09601246B2 Method of manufacturing magnet, and magnet 有权
公开(公告)号：US09601246B2
公开(公告)日：2017-03-21
申请号：US13771887
申请日：2013-02-20
申请人： JTEKT CORPORATION
发明人： Kazuhisa Sugiyama , Toshiyuki Baba
IPC分类号： H01F1/01 , H01F1/059 , H01F1/06 , H01F1/08 , H01F7/02 , C22C38/00
CPC分类号： H01F1/01 , C22C38/001 , C22C38/005 , H01F1/0596 , H01F1/065 , H01F1/08 , H01F7/02
摘要： A hard magnetic material formed of material powders made of a R—Fe—N compound containing a light rare earth element as R, or material powders made of a Fe—N compound is used as material powders. There is formed a compact in which a density of the hard magnetic material powders differs between an outer face side portion and an inside portion of the compact such that a rate of progress of powder bonding due to microwave heating is higher in the inside portion of the compact than in the outer face side portion of the compact when an outer face of the compact is irradiated with microwaves. Then, the outer face of the compact is irradiated with the microwaves to cause the microwave heating, thereby bonding the hard magnetic material powders by oxide films which are formed on the hard magnetic material powders.

113. 发明申请

US20160042849A1 MAGNETIC MATERIAL INCLUDING a"-Fe16(NxZ1-x)2 OR A MIXTURE OF a"-Fe16Z2 AND a"-Fe16N2, WHERE Z INCLUDES AT LEAST ONE OF C, B, OR O 审中-公开
标题翻译：包含“-Fe16（NxZ1-x）2或”-Fe16Z2和“-Fe16N2的混合物”的磁性材料，其中Z包括至少一个C，B或O
公开(公告)号：US20160042849A1
公开(公告)日：2016-02-11
申请号：US14820284
申请日：2015-08-06
申请人： Regents of the University of Minnesota
发明人： Jian-Ping Wang , Yanfeng Jiang , Md Aminul Mehedi
IPC分类号： H01F1/147 , C23C14/14 , C23C14/34 , C21D6/00 , H01F41/14 , B22F9/04 , C30B19/00 , C30B23/06 , C30B29/38 , H01F1/053 , C22C38/00 , C21D1/26
CPC分类号： C30B29/38 , B22F9/04 , B22F2009/041 , C01B21/0622 , C21D1/26 , C21D6/00 , C22C1/1031 , C22C1/1084 , C22C33/0292 , C22C38/001 , C22C38/002 , C23C8/26 , C23C14/48 , C23C14/5806 , C23C16/36 , C23C16/4488 , C23C16/56 , C23C28/04 , C23C28/42 , C30B19/00 , C30B23/00 , C30B25/00 , C30B33/02 , H01F1/065 , H01F1/08 , H01F10/147 , H01F41/18
摘要： A magnetic material may include α″-Fe16(NxZ1-x)2 or a mixture of α″-Fe16N2 and α″-Fe16Z2, where Z includes at least one of C, B, or O, and x is a number greater than zero and less than one. In some examples, the magnetic material including α″-Fe16(NxZ1-x)2 or a mixture of α″-Fe16N2 and α″-Fe16Z2 may include a relatively high magnetic saturation, such as greater than about 219 emu/gram, greater than about 242 emu/gram, or greater than about 250 emu/gram. In addition, in some examples, the magnetic material including α″-Fe16(NxZ1-x)2 or a mixture of α″-Fe16N2 and α″-Fe16Z2 may include a relatively low coercivity. Techniques for forming the magnetic material are also described.
摘要翻译：磁性材料可以包括α“-Fe16（NxZ1-x）2或α”-Fe16N2和α“-Fe16Z2的混合物，其中Z包括C，B或O中的至少一个，x是大于零和小于一。在一些实例中，包括α“-Fe16（NxZ1-x）2或α”-Fe16N2和α“-Fe16Z2的混合物的磁性材料可以包括相对高的磁饱和度，例如大于约219emu /克，更大比约242emu /克，或大于约250emu /克。此外，在一些实例中，包括α“-Fe16（NxZ1-x）2或α”-Fe16N2和α“-Fe16Z2的混合物的磁性材料可包括较低的矫顽力。还描述了用于形成磁性材料的技术。

114. 发明授权

US09136049B2 Magnesium—aluminium magnetic powder and method for making same 有权
标题翻译：镁铝磁粉及其制作方法
公开(公告)号：US09136049B2
公开(公告)日：2015-09-15
申请号：US13499245
申请日：2009-11-10
申请人： Jung-Goo Lee , Chul-Jin Choi
发明人： Jung-Goo Lee , Chul-Jin Choi
IPC分类号： H01F1/08 , B22F1/00 , B82Y30/00 , C22C1/04 , H01F1/047
CPC分类号： H01F1/08 , B22F1/0018 , B22F2998/10 , B82Y30/00 , C22C1/04 , C22C1/0416 , H01F1/047 , B22F1/0003 , B22F3/02 , B22F9/12 , B22F1/0085
摘要： This invention relates to Mn—Al magnetic powders of a high coercive force which are obtained from Mn—Al alloy vaporized by plasma arc discharging, and a manufacturing method thereof.The Mn—Al magnetic powders are produced by discharging a plasma arc to a compact which is formed by compacting a blend containing 20-60% by weight of Mn powder and 40-80% by weight of Al powder, collecting nanoscale Mn—Al particles after cooling the vaporized blend, and heat-treating the particles.According to the present invention, the Mn—Al magnetic powders of light weight and enhanced corrosion resistance are produced at a low cost.
摘要翻译：本发明涉及由通过等离子体电弧放电气化的Mn-Al合金获得的高矫顽力的Mn-Al磁粉及其制造方法。通过将等离子体电弧放电到通过压制含有20-60重量％的Mn粉末和40-80重量％的Al粉末的共混物形成的压块来制造Mn-Al磁性粉末，收集纳米尺度的Mn-Al颗粒在蒸发的混合物冷却后，对该颗粒进行热处理。根据本发明，以低成本制造重量轻且耐腐蚀性提高的Mn-Al磁粉。

115. 发明申请

US20150034856A1 NANOPARTICLE, PERMANENT MAGNET, MOTOR, AND GENERATOR 审中-公开
标题翻译： NANOPARTICLE，永久磁铁，电机和发电机
公开(公告)号：US20150034856A1
公开(公告)日：2015-02-05
申请号：US14383454
申请日：2013-02-11
申请人： SIEMENS AKTIENGESELLSCHAFT
发明人： Gotthard Rieger
IPC分类号： H01F1/03
CPC分类号： H01F1/0302 , B22F1/0025 , B22F1/025 , B32B15/01 , B32B15/013 , C22C19/05 , C22C19/07 , C22C22/00 , C22C33/02 , C22C38/002 , C22C38/08 , C22C38/10 , H01F1/0054 , H01F1/0579 , H01F1/068 , H01F1/08 , H01F1/14741
摘要： At least one elongated core, made of at least one first magnetizable and/or magnetic material, and a shell, surrounding the core and made of at least one second magnetocrystalline anisotropic material, form a nanoparticle. A plurality of such nanoparticles are used in making a permanent magnet. A motor or a generator includes at least one such permanent magnet.
摘要翻译：由至少一个第一可磁化和/或磁性材料制成的至少一个细长芯体和围绕芯部并由至少一个第二磁晶各向异性材料制成的壳体形成纳米颗粒。在制造永磁体时使用多个这样的纳米颗粒。电动机或发电机包括至少一个这样的永磁体。

116. 发明申请

US20140374643A1 MAGNET MANUFACTURING METHOD AND MAGNET 审中-公开
标题翻译：磁铁制造方法和磁铁
公开(公告)号：US20140374643A1
公开(公告)日：2014-12-25
申请号：US14304360
申请日：2014-06-13
申请人： JTEKT CORPORATION
发明人： Takumi MIO , Koji NISHI , Toshiyuki BABA
IPC分类号： H01F41/02 , C01B21/06 , H01F1/10
CPC分类号： H01F41/0266 , C01B21/0622 , C01B21/0627 , C01P2006/42 , H01F1/059 , H01F1/08 , H01F1/10
摘要： There is provided a magnet manufacturing method with which a high residual magnetic flux density is obtained without using dysprosium (Dy) and without using a bonding agent. Magnetic powders made of a hard magnetic material formed of a R—Fe—N compound containing a rare earth element as R or formed of a Fe—N compound are used. In a pressurizing step, the magnetic powders are pressurized by molds multiple times to form a primary compact. In a baking step, a secondary compact is formed by heating the primary compact in an oxidizing atmosphere at a temperature lower than a decomposition temperature of the magnetic powders to bond together the outer surfaces of the adjacent magnetic powders with oxide films formed on the outer surfaces of the magnetic powders.
摘要翻译：提供了一种在不使用镝（Dy）并且不使用粘合剂的情况下获得高剩余磁通密度的磁体制造方法。使用由含有稀土元素R或由Fe-N化合物形成的R-Fe-N化合物形成的硬磁性材料制成的磁性粉末。在加压步骤中，磁粉通过模具多次加压以形成初级压块。在烘烤步骤中，通过在低于磁粉的分解温度的温度下，在氧化气氛中加热初级压块，形成二次压块，将邻接的磁粉的外表面与形成在外表面上的氧化膜粘合在一起的磁粉。

117. 发明申请

US20130278104A1 Rare Earth Magnet and Motor Using the Same 审中-公开
标题翻译：稀土磁铁和使用它的电机
公开(公告)号：US20130278104A1
公开(公告)日：2013-10-24
申请号：US13924746
申请日：2013-06-24
申请人： Hitachi, Ltd.
发明人： Matahiro KOMURO , Yuichi SATSU , Hiroyuki SUZUKI
IPC分类号： H01F1/40 , H02K1/27
CPC分类号： H01F1/408 , C22C1/0441 , C22C2202/02 , H01F1/0556 , H01F1/0557 , H01F1/0577 , H01F1/058 , H01F1/0596 , H01F1/08 , H01F1/086 , H01F41/0293 , H02K1/02 , H02K1/27
摘要： The present invention makes it possible to increase the residual magnetic flux density and the coercive force of a rare earth magnet; and raise the Curie temperature. In a magnet formed by compressing magnetic particles, the surface of a magnetic particle is covered with a metal fluoride film, the magnetic particle has a crystal structure containing a homo portion formed by bonding adjacent iron atoms and a hetero portion formed by bonding two iron atoms via an atom other than iron, and the distance between the two iron atoms in the hetero portion is different from the distance between the adjacent iron atoms in the homo portion.
摘要翻译：本发明可以增加稀土磁体的剩余磁通密度和矫顽力; 并提高居里温度。在通过压缩磁性颗粒形成的磁体中，磁性颗粒的表面被金属氟化物膜覆盖，磁性颗粒具有包含通过键合相邻铁原子而形成的均匀部分的晶体结构和通过键合两个铁原子形成的杂质部分通过除铁以外的原子，并且异质部分中的两个铁原子之间的距离不同于同质部分中相邻的铁原子之间的距离。

118. 发明授权

US08354145B2 Method of applying a pattern to a substrate 有权
标题翻译：将图案应用于基材的方法
公开(公告)号：US08354145B2
公开(公告)日：2013-01-15
申请号：US12293507
申请日：2007-03-20
申请人： Tim Els Leo De Rydt , Laurent Goubet
发明人： Tim Els Leo De Rydt , Laurent Goubet
IPC分类号： B32B3/00
CPC分类号： B44C1/00 , B05D3/207 , B05D5/06 , B44F1/10 , H01F1/0027 , H01F1/08 , H01F7/0215 , H01F41/16 , Y10T428/24901
摘要： Method for applying a pattern onto a substrate, the method including the following steps: applying a layer of a paint comprising magnetically orientable pigments on the substrate; exposing the paint to a magnetic field, whereby the pigments are oriented along field lines of the magnetic field to produce a pattern in the paint layer; and solidifying the paint on the substrate; characterized in that the magnetic field is generated by a magnetic part embedded in the substrate.
摘要翻译：将图案涂布到基材上的方法，该方法包括以下步骤：将包含可磁性取向颜料的涂料层涂覆在基材上; 将涂料暴露于磁场，由此颜料沿着磁场的场线取向以在涂料层中产生图案; 并固化在基材上的涂料; 其特征在于，所述磁场由嵌入在所述基板中的磁性部分产生。

119. 发明授权

US4940596A Process for metal fibers 失效
标题翻译：金属纤维工艺
公开(公告)号：US4940596A
公开(公告)日：1990-07-10
申请号：US272076
申请日：1988-11-16
申请人： Robin E. Wright
发明人： Robin E. Wright
IPC分类号： B22F1/00 , B22F9/30 , G11B5/714 , H01F1/06 , H01F1/08 , H01F1/44 , H01Q17/00
CPC分类号： B22F9/30 , B22F1/004 , G11B5/714 , H01F1/06 , H01F1/08 , H01F1/442 , H01Q17/002 , Y10S75/952
摘要： A slurry comprises a ferromagnetic fiber having an aspect ratio of 10 to 10,000 and an organic liquid medium that is unreactive with the metal fibers.The metal fibers are provided by preparing a mixture comprising a thermally unstable metal complex compound, comprising at least one ferromagnetic metal, in a liquid medium, applying energy to said mixture in the presence of an externally applied magnetic field to decompose said complex compound, and isolating the deposited metal fibers.Articles are provided by the impregnation of metal fibers of the invention into and onto a porous substrate.
摘要翻译：浆料包含纵横比为10至10,000的铁磁纤维和与金属纤维不反应的有机液体介质。通过在外部施加的磁场的存在下，通过制备包含热不稳定的金属络合物的混合物来提供金属纤维，所述混合物包含至少一种铁磁性金属，在液体介质中，向所述混合物施加能量以分解所述络合物;以及隔离沉积的金属纤维。通过将本发明的金属纤维浸渍到多孔基材上并提供给制品。

120. 发明授权

US4628809A Radial orientation rare earth-cobalt magnet rings 失效
标题翻译：径向取向稀土钴磁体环
公开(公告)号：US4628809A
公开(公告)日：1986-12-16
申请号：US762708
申请日：1985-08-05
申请人： Dilip K. Das , Kaplesh Kumar , Ernest C. Wettstein
发明人： Dilip K. Das , Kaplesh Kumar , Ernest C. Wettstein
IPC分类号： H01F1/08 , H01F41/02 , B30B15/14
CPC分类号： H01F1/08 , H01F41/026 , Y10S100/917 , Y10S264/58 , Y10S29/095 , Y10S428/928 , Y10T29/49078
摘要： Apparatus and method for forming radial orientation rare earth-transition metal magnets in continuous arc rings by hot isostatic pressing. A method includes the steps of compacting rare earth-transition metal powders having a particle size up to 40 microns into radially oriented rings in a mold provided with a radially aligning field, stacking a plurality of compacted radially oriented rings within an annular cavity within a sealed, evacuated canister to form a cylinder of a predetermined height, subjecting the canister to temperatures in the range of 900.degree. to 1150.degree. C. under a gas pressure of 15 kpsi to densify the compacts, and cooling the canister and the compacts to room temperature. An apparatus for performing the above-described method, includes a mold for forming green compacts having a central iron core or mandrel, as outer housing forming an annular space between it and the iron mandrel, plungers for compacting into a ring rare earth-transition metal powder within the annular space, and means for forming a radially oriented magnetic field. The magnetic field forming means includes a pair of electromagnetic coils with bucking fields disposed on opposite axial ends of the annular space. Ferromagnetic paths guide the flux through the inner and outer walls of the mold and through the powder to form a radial field for powder alignment. A canister is used for forming magnets from the green compacts and the canister is typically composed of a soft iron that will collapse around the magnets and transmit compressive forces to the green compacts for densification thereof. The canister includes an annular space for stacking green compacts bounded by inner and outer walls and an evacuation tube. A central mandrel may be provided if a ring magnet having a predetermined inner diameter is desired.
摘要翻译：通过热等静压法在连续弧环中形成径向定向稀土 - 过渡金属磁体的装置和方法。一种方法包括以下步骤：在具有径向对准场的模具中将粒径达40微米的稀土过渡金属粉末压实成径向取向的环，将多个压实的径向取向的环在密封的环形空腔内堆叠，抽真空的罐形成预定高度的圆筒，在罐内压力为15kpsi的条件下，对罐进行900〜1150℃的温度，使压实体致密化，并将其冷却至室温。一种用于执行上述方法的设备包括：用于形成具有中心铁芯或心轴的生坯的模具，作为在其与铁心之间形成环形空间的外壳，用于压实成环稀土过渡金属的柱塞在环形空间内的粉末，以及用于形成径向取向的磁场的装置。磁场形成装置包括一对电磁线圈，其具有设置在环形空间的相对轴向端部上的屈曲磁场。铁磁路径引导焊剂通过模具的内壁和外壁，并通过粉末形成用于粉末对准的径向场。碳罐用于从生坯中形成磁体，并且罐通常由软铁构成，软铁将围绕磁体塌陷并将压缩力传递到生坯上以使其致密化。罐包括用于堆叠由内壁和外壁界定的生坯的排出管的环形空间。如果期望具有预定内径的环形磁体，则可以提供中心心轴。

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