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121. 发明授权

US4564400A Method of improving magnets 失效
标题翻译：改善磁铁的方法
公开(公告)号：US4564400A
公开(公告)日：1986-01-14
申请号：US587412
申请日：1984-03-08
申请人： Kalatur S. V. L. Narasimhan , Charles D. Preusch
发明人： Kalatur S. V. L. Narasimhan , Charles D. Preusch
IPC分类号： H01F1/08 , H01F41/02 , H01F1/02
CPC分类号： H01F1/086 , H01F1/08 , H01F41/0273
摘要： A method for producing magnets from powdered magnetic alloy, and magnets having improved remanence and good coercive force; the method comprises aligning a particle charge of magnet alloy within a container, which aligning may be achieved by use of a pulsating magnetic field; consolidating the charge after alignment to a density in excess of 95% of theoretical density by cold or hot isostatic pressing, or a combination thereof.
摘要翻译：一种由粉末状磁性合金制造磁体的方法，以及具有改善的剩磁性和良好矫顽力的磁体; 该方法包括将容器内的磁体合金的粒子电荷对准，该对准可以通过使用脉动磁场来实现; 通过冷或热等静压，将对准后的电荷固结至超过理论密度的95％的密度，或其组合。

122. 发明公开

EP3401933A1 Mn-Bi-BASED MAGNETIC POWDER, METHOD FOR PRODUCING SAME, COMPOUND FOR BOND MAGNET, BOND MAGNET, Mn-Bi-BASED METAL MAGNET AND METHOD FOR PRODUCING SAME 审中-公开
公开(公告)号：EP3401933A1
公开(公告)日：2018-11-14
申请号：EP16883885.2
申请日：2016-12-28
申请人： Toda Kogyo Corp.
发明人： KATAYAMA, Nobuhiro , MORIMOTO, Koichiro
IPC分类号： H01F1/06 , B22F1/00 , B22F3/00 , B22F9/08 , C22C12/00 , H01F1/08 , H01F41/02
CPC分类号： B22F1/00 , B22F3/00 , B22F9/08 , C22C12/00 , H01F1/06 , H01F1/08 , H01F41/02
摘要： A Mn-Bi-based magnetic powder, which contains a hexagonal Mn-Bi-based magnetic phase containing Sn and has a Sn content of 0.2 to 5 at% with respect to a sum of Mn, Bi and Sn, is provided. In addition, a bond magnet containing a kneaded product of this Mn-Bi-based magnetic powder with a resin binder is provided. Furthermore, a Mn-Bi-based metal magnet, which contains a hexagonal Mn-Bi-based magnetic phase containing Sn and has a Sn content of 0.2 to 5 at% with respect to a sum of Mn, Bi and Sn, is provided.

123. 发明公开

EP3330984A1 METHOD FOR PRODUCING R-T-B SYSTEM SINTERED MAGNET 有权
公开(公告)号：EP3330984A1
公开(公告)日：2018-06-06
申请号：EP16830396.4
申请日：2016-07-20
申请人： Hitachi Metals, Ltd.
发明人： KUNIYOSHI Futoshi
IPC分类号： H01F41/02 , B22F3/24 , C21D6/00 , C22C28/00 , C22C38/00 , C22F1/00 , H01F1/057 , H01F1/08
CPC分类号： H01F41/0293 , B22F3/1007 , B22F3/24 , B22F2003/248 , B22F2201/20 , B22F2202/05 , B22F2301/355 , B22F2999/00 , C21D6/00 , C22C1/0433 , C22C28/00 , C22C33/0278 , C22C38/00 , C22C38/005 , C22C38/06 , C22C38/10 , C22C38/12 , C22C38/14 , C22C38/16 , C22C2202/02 , C22F1/00 , H01F1/057 , H01F1/0577 , H01F1/08 , H01F41/02 , H01F41/0266 , B22F2201/10
摘要： A sintered R-T-B based magnet work and a Pr-Ga alloy are provided. The sintered magnet work contains R: 27.5 to 35.0 mass% (where R is at least one rare-earth element which always includes Nd), B: 0.80 to 0.99 mass%, Ga: 0 to 0.8 mass%, M: 0 to 2 mass% (where M is at least one of Cu, Al, Nb and Zr), a balance T (where T is at least one transition metal element which always includes Fe, such that 10% or less of Fe is replaceable by Co), and inevitable impurities. [T]/55.85 > 14[B]/10.8 is satisfied where [T] is the T content (mass%) and [B] is the B content (mass%). At least a portion of the Pr-Ga alloy is allowed to be in contact with at least a portion of the sintered magnet work surface, and a first heat treatment is performed at a temperature which is greater than 600°C but equal to or less than 950°C. A second heat treatment is performed at a temperature which is lower than the temperature of the first heat treatment but which is not less than 450°C and not more than 750°C.

124. 发明公开

EP3276796A1 RARE-EARTH PERMANENT MAGNET-FORMING SINTERED COMPACT AND ROTARY ELECTRIC MACHINE INCLUDING RARE-EARTH PERMANENT MAGNET 有权
标题翻译：稀土永磁成形烧结紧凑型旋转电机，包括稀土永磁
公开(公告)号：EP3276796A1
公开(公告)日：2018-01-31
申请号：EP16768880.3
申请日：2016-03-24
申请人： Nitto Denko Corporation
发明人： FUJIHARA Makoto , FUJIKAWA Kenichi , SAITO Shoichiro
IPC分类号： H02K1/27 , H01F7/02 , H02K1/22 , H02K15/03 , H01F1/057 , H01F1/08
CPC分类号： H01F7/0247 , H01F1/053 , H01F1/0577 , H01F1/08 , H01F7/02 , H01F41/0273 , H01F41/028 , H02K1/22 , H02K1/27 , H02K15/03
摘要： Provided are: a rotary electric machine that includes a rotor having a plurality of permanent magnets arranged in the circumferential direction, and in which the leakage of magnetic flux can be suppressed with a simple structure; and a rare-earth permanent magnet-forming sintered compact for forming rare-earth permanent magnets to be used in said rotary electric machine. This rare-earth permanent magnet is made by sintering and molding magnet material particles including a rare-earth substance, and at least one of the end surfaces at respective end sections is inclined outward in the length direction from an end section, in the length direction, of a first surface, and thereby constitutes a first inclined surface forming a predetermined three-dimensional shape having a lengthwise cross-sectional shape in which the length of the first surface is made shorter than that of a second surface. The rare-earth permanent magnet is partitioned into a central region in the length direction, and a first end-section region covering a range having a predetermined lengthwise dimension from said at least one end surface. In the central region, the axis of magnetization of the magnet material particles included in the central region is arranged in a parallel orientation in which the axis of magnetization is oriented in a substantially perpendicular direction to the first surface extending in the length direction. As for the magnet material particles included in the first end-section region: at a position adjacent to said at least one end surface, the axis of magnetization is inclined with respect to the first surface and directed toward the first surface so as to be along the inclination angle of the first inclined surface forming said end surface; at a position adjacent to the central region, the axis of magnetization is directed toward the first surface so as to be oriented in a substantially perpendicular direction to the first surface; and, between said at least one end surface and said central region, the axis of magnetization is oriented in a converging manner so as to be directed toward the first surface at inclination angles that gradually change from the end surface toward the central region.
摘要翻译：本发明提供一种旋转电机，其具有转子，该转子具有沿周向排列的多个永久磁铁，能够以简单的结构抑制磁通的泄漏，以及用于形成在所述旋转电机中使用的稀土永磁体的稀土永磁体形成烧结体。该稀土类永久磁铁是通过将含有稀土类物质的磁铁材料粒子烧结成形而形成的，各端部的至少一个端面在长度方向上从端部向长度方向外侧倾斜由此构成第一倾斜表面，该第一倾斜表面形成具有其中第一表面的长度比第二表面的长度短的纵向截面形状的预定三维形状。稀土类永久磁铁被划分为长度方向的中央区域和从所述至少一个端面覆盖规定长度尺寸的范围的第一端部区域。在中央区域，中央区域所包含的磁体原材料粒子的磁化轴配置成磁化轴的方向与在长度方向上延伸的第一面大致垂直的方向。关于包括在第一端部区域中的磁体材料颗粒：在与所述至少一个端面相邻的位置处，磁化轴相对于第一表面倾斜并指向第一表面以沿着形成所述端面的第一倾斜面的倾斜角度; 在与所述中央区域相邻的位置处，所述磁化轴朝向所述第一表面以便定向在与所述第一表面大致垂直的方向上; 并且在所述至少一个端面和所述中心区域之间，所述磁化轴线以会聚的方式定向，以便以从所述端面朝向所述中心区域逐渐变化的倾斜角度朝向所述第一表面。

125. 发明公开

EP2798649A1 NANOPARTIKEL, PERMANENTMAGNET, MOTOR UND GENERATOR 审中-公开
标题翻译：纳米粒子，永磁，电动机和发电机
公开(公告)号：EP2798649A1
公开(公告)日：2014-11-05
申请号：EP13704408.7
申请日：2013-02-11
申请人： Siemens Aktiengesellschaft
发明人： RIEGER, Gotthard
IPC分类号： H01F1/06 , H01F1/00 , H01F1/08
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： The nanoparticle (5) has at least one elongated core (10), which is made of at least one first magnetizable and/or magnetic material, and a shell (20), which surrounds the core and which is made of at least one second magnetocrystalline anisotropic material. The permanent magnet (40) comprises a plurality (30) of such nanoparticles. The motor or generator (60) has at least one such permanent magnet (40).

126. 发明公开

EP2492927A4 FERROMAGNETIC PARTICLE POWDER, METHOD FOR PRODUCING SAME, ANISOTROPIC MAGNET AND BONDED MAGNET 有权
标题翻译： FERRO磁性颗粒粉末，用于生产IT，注定各向异性磁铁MAGNET
公开(公告)号：EP2492927A4
公开(公告)日：2013-05-15
申请号：EP10824929
申请日：2010-10-19
申请人： TODA KOGYO CORP , UNIV TOHOKU
发明人： TAKAHASHI MIGAKU , OGAWA TOMOYUKI , OGATA YASUNOBU , KOBAYASHI NAOYA
IPC分类号： H01F1/11 , B82Y30/00 , C01B21/06 , H01F1/06 , H01F1/08
CPC分类号： H01F1/0533 , B82Y30/00 , C01B21/0622 , C01P2004/62 , C01P2004/64 , C01P2006/12 , C01P2006/42 , H01F1/06 , H01F1/061 , H01F1/08 , Y10T428/2982
摘要： The present invention relates to Fe 16 N 2 particles in the form of a single phase which are obtained by subjecting iron oxide or iron oxyhydroxide whose surface may be coated with at least alumina or silica, if required, as a starting material, to reducing treatment and nitridation treatment, a process for producing the Fe 16 N 2 particles in the form of a single phase for a heat treatment time of not more than 36 hr, and further relates to an anisotropic magnet or a bonded magnet which is obtained by magnetically orienting the Fe 16 N 2 particles in the form of a single phase. The Fe 16 N 2 particles according to the present invention can be produced in an industrial scale and have a large BH max value.

127. 发明授权

EP0418023B1 Cobalt-based magnet free of rare earths 失效
标题翻译：基于磁无稀土钴。
公开(公告)号：EP0418023B1
公开(公告)日：1994-08-03
申请号：EP90309911.7
申请日：1990-09-11
申请人： FORD MOTOR COMPANY LIMITED , FORD FRANCE SOCIETE ANONYME , FORD-WERKE AKTIENGESELLSCHAFT
发明人： Hadjipanayis, George Costa , Gao, Chuan , Gramlich, Donald Lee
IPC分类号： H01F1/047 , H01F1/08
CPC分类号： H01F1/047 , H01F1/08

128. 发明公开

EP0418023A2 Cobalt-based magnet free of rare earths 失效
标题翻译： Auf Cobalt basierendes Magnet ohne Seltenerden。
公开(公告)号：EP0418023A2
公开(公告)日：1991-03-20
申请号：EP90309911.7
申请日：1990-09-11
申请人： FORD MOTOR COMPANY LIMITED , FORD FRANCE SOCIETE ANONYME , FORD-WERKE AKTIENGESELLSCHAFT
发明人： Hadjipanayis, George Costa , Gao, Chuan , Gramlich, Donald Lee
IPC分类号： H01F1/047 , H01F1/08
CPC分类号： H01F1/047 , H01F1/08
摘要： A hard magnetic alloy free of rare earths, consisting of 14-20% of a transition metal (Zr or Hf), 1-5% silicon, .3-5.6% boron, and the remainder essentially cobalt, the alloy having a microstructure substantially devoid of nonmagnetic phases and consisting of a high proportion of (Co-Si)₁₁TM₂ phase and a lesser proportion of (Co-Si)₂₃TM₆ phase, such phases being distributed throughout in a regular manner in a fine grain. Substitution agents of nickel or iron may be used for up to 10% of the cobalt, substitutional agents of vanadium or niobium may be used for up to 5% of the TM, and aluminium, copper, or gallium for up to 2% of the silicon. The alloy has high coercivity, high temperature stability, and excellent corrosion resistance. The alloy may be processed directly by extrusion with reduced requirements for boron and silicon.
摘要翻译：不含稀土的硬磁合金，由14-20％的过渡金属（Zr或Hf），1-5％的硅，.3-5.6％的硼组成，其余的基本上由钴组成，该合金具有显微组织没有非磁性相，并且由（Co-Si）11TM2相和（Co-Si）23TM6相的较高比例组成，这些相以规则的方式分布在细晶粒中。镍或铁的取代剂可用于多达10％的钴，钒或铌的替代剂可用于多达5％的TM，而铝，铜或镓可用于高达2％的硅。该合金具有高矫顽力，高温稳定性和优异的耐腐蚀性。可以通过挤出直接加工合金，对硼和硅的要求降低。

129. 发明公开

EP0334478A3 Die-upset manufacture to produce high volume fractions of RE-Fe-B type magnetically-aligned material 失效
$Die-upset manufacture to produce high volume fractions of RE-Fe-B type magnetically-aligned material$
标题翻译：用于生产RE-B型磁性材料的高容积的DIE-UPS制造
公开(公告)号：EP0334478A3
公开(公告)日：1990-12-19
申请号：EP89301499.3
申请日：1989-02-16
申请人： GENERAL MOTORS CORPORATION
发明人： Brewer, Earl G , Lee, Robert W.
IPC分类号： H01F41/02 , H01F1/08
CPC分类号： H01F1/08 , H01F1/0576
摘要： A method of increasing the volume fraction of magnetically-aligned material in rare-earth (RE), iron, boron type anisotropic permanently magnetic material includes forming an adaptively-shaped, fully-dense, substantially magnetically-isotropic pre-form (64) from relatively coarse powder particles of melt-spun alloy containing a very fine-grain RE₂Fe₁₄B phase. The pre-form (64) is heated and die-upset to provide uniformity of strain in the pre-form (64) as it is conformed to the die walls (82), thereby causing an increased percentage of the crystallites in the pre-form (64) to be oriented along a crystallographically-preferred magnetic axis which increases the energy product of a resultant magnet formed therefrom.

130. 发明公开

EP0299618A3 Preparation process for ferromagnetic metal fibers 失效
标题翻译：非金属金属纤维，其制备方法和衍生的物品
公开(公告)号：EP0299618A3
公开(公告)日：1990-06-20
申请号：EP88305270.6
申请日：1988-06-09
申请人： MINNESOTA MINING AND MANUFACTURING COMPANY
发明人： Wright, Robin E. c/o Minnesota Mining and , Bellus, Peter A. c/o Minnesota Mining and
IPC分类号： H01F1/08 , H01F1/28
CPC分类号： G11B5/714 , B22F1/004 , B22F9/30 , H01F1/06 , H01F1/08 , H01F1/442 , H01Q17/002
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.

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