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31. 发明专利

JP2013105903A Manufacturing method of rare earth magnet 有权
标题翻译：稀土磁铁制造方法
公开(公告)号：JP2013105903A
公开(公告)日：2013-05-30
申请号：JP2011248923
申请日：2011-11-14
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： SHOJI TETSUYA , OMURA SHINYA , HIRAOKA MOTOKI
IPC分类号： H01F41/02 , B22F3/24 , B22F3/26 , C22C28/00 , H01F1/057 , H01F1/08
CPC分类号： H01F41/02 , B22F1/0044 , C22C1/002 , C22C28/00 , C22C45/00 , C22C2202/02 , H01F1/0571 , H01F1/0577 , H01F41/0293
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of a rare earth magnet with high coercive force and relatively high magnetization by enabling penetration of modifying alloy that enhances the coercive force (in particular, coercive force at high-temperature atmosphere) at a lower temperature than in a conventional manufacturing method of a rare earth magnet.SOLUTION: A manufacturing method of a rare earth magnet is provided, the method comprising: a first step of manufacturing a molded body C by performing a hot plastic processing that adds anisotropy to a sintered body S, the sintered body S being formed with a main phase MP of an RE-Fe-B type nano-crystal structure (at least either one of RE:Nd, or Pr) and with a grain boundary phase BP of RE-X alloy (X is a metal element) present at the periphery of the main phase MP; and a second step of manufacturing a rare earth magnet RM by melting an RE-Y-Z alloy (Y is a transition metal element, and Z is a heavy rare earth element) that enhances the coercive force of the molded body C and the grain boundary phase BP together, and by penetrating in liquid-phase the RE-Y-Z alloy molten solution from the surface of the molded body C.
摘要翻译：要解决的问题：为了提供具有高矫顽力和相对高的磁化强度的稀土磁体的制造方法，可以通过使矫顽力达到增强矫顽力（特别是在高温气氛下的矫顽力）比传统的稀土磁体制造方法的温度低。解决方案：提供稀土磁体的制造方法，该方法包括：通过对烧结体S进行各向异性的热塑性加工来制造成形体C的第一工序，形成烧结体S 具有RE-Fe-B型纳米晶体结构的主相MP（RE：Nd或Pr）中的至少任一种，并且存在RE-X合金（X是金属元素）的晶界相BP 在主相MP的周围; 以及通过熔化增强成型体C和晶界相的矫顽力的RE-YZ合金（Y是过渡金属元素，Z是重稀土元素）来制造稀土磁体RM的第二步骤 BP一起，并且通过从成型体C的表面渗透RE-YZ合金熔融溶液在液相中。（C）2013，JPO和INPIT

32. 发明专利

JP2012174986A Production method of rare earth magnet 有权
标题翻译：稀土磁铁的生产方法
公开(公告)号：JP2012174986A
公开(公告)日：2012-09-10
申请号：JP2011037320
申请日：2011-02-23
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： MIYAMOTO NORITAKA , MANABE AKIRA , SHOJI TETSUYA , ICHIKIZAKI DAISUKE
IPC分类号： H01F41/02 , B22F3/14 , B22F3/24 , H01F1/057 , H01F1/08
CPC分类号： H01F41/0253 , B22F3/14 , C22C1/00 , C22C38/002 , C22C38/005 , C22C38/10 , C22C2202/02 , H01F1/0576 , H01F7/02 , H01F41/0266
摘要： PROBLEM TO BE SOLVED: To provide a production method of rare-earth magnet in which higher magnetization is achieved by hot plastic processing while ensuring a high coercive-force simultaneously.SOLUTION: In the method of producing an R-T-B-based rare-earth magnet by performing hot plastic processing after molding the powder of an R-T-B-based rare-earth alloy (R:rare-earth element, T:Fe or a part of Fe is replaced by Co), the hot plastic processing is performed in a processing direction different from the molding.
摘要翻译：要解决的问题：提供一种通过热塑性加工实现更高磁化强度同时确保高矫顽力的稀土类磁体的制造方法。解决方案：在RTB型稀土合金（R：稀土元素，T：Fe或其一部分）的粉末成型后进行热塑性加工的RTB型稀土类磁体的制造方法中，的Fe替代为Co），热塑性加工在与成型体不同的加工方向进行。版权所有（C）2012，JPO＆INPIT

33. 发明专利

JP2011003662A Permanent magnet and method of manufacturing the same 审中-公开
标题翻译：永磁体及其制造方法
公开(公告)号：JP2011003662A
公开(公告)日：2011-01-06
申请号：JP2009144479
申请日：2009-06-17
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： SHOJI TETSUYA , KISHIMOTO HIDESHI , SAKUMA NORITSUGU , NAKAMURA KENJI , KOGURE TOMOYA
IPC分类号： H01F41/02 , B22F1/00 , B22F3/00 , B22F3/14 , B22F3/24 , B22F9/08 , C22C38/00 , H01F1/08 , H01F7/02 , H02K15/03
CPC分类号： H01F41/0266 , B22F1/0044 , B22F2998/10 , H01F1/0577 , B22F9/08 , B22F3/14
摘要： PROBLEM TO BE SOLVED: To provide a permanent magnet which is made of a single composition and has coercive force and magnetism which are distributed varying from a center part to a peripheral edge, and to provide a method of manufacturing the permanent magnet.SOLUTION: The permanent magnet is formed by uniting many crystal grains of nanosize by sintering, and is characterized in that a chemical composition is substantially uniform over the entire volume, and degrees of orientation are distributed to increase from the peripheral edge to the center part of the volume. The method of manufacturing the permanent magnet includes steps of: melting and quenching a magnet material to form many melt-spun ribbons having crystal grains of nanosize; pressure-molding and sintering the many melt-spun ribbons into one body to obtain a sintered body; and applying plastic working to the sintered body so that strain is distributed from the peripheral edge to the center part of the volume thereof.
摘要翻译：要解决的问题：提供由单一组成制成并具有从中心部分到周边边缘分布的矫顽力和磁力的永磁体，并提供一种制造永磁体的方法。解决方案：通过烧结使纳米尺寸的许多晶粒结合而形成永磁体，其特征在于，化学成分在整个体积上基本均匀，并且取向度分布从体积的周边边缘增加到中心部分。制造永磁体的方法包括以下步骤：熔融和淬火磁体材料以形成许多具有纳米尺寸的晶粒的熔纺丝带; 将许多熔纺丝条加压成型并烧结成一体，得到烧结体; 并对该烧结体进行塑性加工，以使应变从周缘分布到其体积的中心部分。

34. 发明专利

JP2010215972A NdFeBCu MAGNET MATERIAL 审中-公开
标题翻译：钕铁硼磁铁材料
公开(公告)号：JP2010215972A
公开(公告)日：2010-09-30
申请号：JP2009064790
申请日：2009-03-17
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KISHIMOTO HIDESHI , SHOJI TETSUYA , SAKUMA NORITSUGU
IPC分类号： C22C38/00 , H01F1/053
CPC分类号： H01F1/0577 , B22F2998/10 , B22F2999/00 , C22C1/0441 , C22C38/002 , C22C38/005 , C22C38/16 , C22C2202/02 , H01F1/0571 , H01F41/0266 , B22F3/14 , B22F2201/20 , B22D1/00 , B22F9/04
摘要： PROBLEM TO BE SOLVED: To provide an NdFeB-based magnet material which can reliably have coercivity equal to or higher than that of a magnet containing a rare metal such as Dy, Tb, Co and Cr, without containing a large amount of these rare metals. SOLUTION: The NdFeBCu magnet material is formed of a liquid-quenched ribbon of Nd-Fe-B-Cu X (x is a number which represents an atomic number ratio and satisfies 1≤x≤3). COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够可靠地具有等于或高于含有稀有金属如Dy，Tb，Co和Cr的磁体的矫顽力的NdFeB基磁体材料，而不含大量的这些稀有金属。解决方案：NdFeBCu磁体材料由Nd-Fe-B-Cu（SB）X SB的液淬淬火带形成（x是代表原子序数比的数，满足1≤x≤ 3）。版权所有（C）2010，JPO＆INPIT

35. 发明专利

JP2008135634A Method for manufacturing nano-composite magnet 有权
标题翻译：制造纳米复合磁体的方法
公开(公告)号：JP2008135634A
公开(公告)日：2008-06-12
申请号：JP2006321721
申请日：2006-11-29
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： SAKUMA NORITSUGU , SHOJI TETSUYA
IPC分类号： H01F41/02 , B22F1/00 , B22F1/02 , H01F1/053 , H01F1/08
CPC分类号： H01F1/0579 , B22F1/025 , B22F2998/00 , B82Y25/00 , C22C2202/02 , H01F1/0577 , H01F41/0266 , C22C33/0278
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a nano-composite magnet including an Fe particle having an appropriate particle diameter. SOLUTION: A dispersion liquid of an Nd 2 Fe 14 B compound particle in a solvent including an interfacial active agent and a dispersion liquid of an Fe particle in a solvent including an interfacial active agent are mixed, and next, an amphipathic solvent is added and beaten to support the Fe particle on the surface of the Nd 2 Fe 14 B compound particle, then after dried and sintered, the nano-composite magnet including the Fe particle in the grain boundary of the Nd 2 Fe 14 B compound particle is manufactured. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种包括具有适当粒径的Fe颗粒的纳米复合磁体的制造方法。解决方案：在包含界面活性剂和Fe颗粒在溶剂中的分散液体的溶剂中，分散有Nd 2 SB SB 8复合颗粒的分散液包括界面活性剂混合，接下来，加入两性溶剂并殴打以支持Nd 2 SB SB-B复合颗粒表面上的Fe颗粒，然后在干燥和烧结之后，制造包含Nd 2 Fe 14 B化合物颗粒的晶界中的Fe颗粒的纳米复合磁体。版权所有（C）2008，JPO＆INPIT

36. 发明专利

JP2008117855A Manufacturing method of nano-composite magnet 审中-公开
标题翻译：纳米复合磁铁的制造方法
公开(公告)号：JP2008117855A
公开(公告)日：2008-05-22
申请号：JP2006297893
申请日：2006-11-01
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： SAKUMA NORITSUGU , SHOJI TETSUYA
IPC分类号： H01F1/053
CPC分类号： H01F41/0266 , B22F1/025 , B22F9/24 , B22F2999/00 , B82Y25/00 , C22C33/0257 , C22C38/002 , C22C38/005 , C22C2202/02 , H01F1/0577 , H01F1/0579
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing a nano-composite magnet containing Fe particles with appropriate particle sizes. SOLUTION: The method includes steps of adding particles of a Nd 2 Fe 14 B compound to a solvent containing a surfactant for dispersion, thereafter adding a Fe precursor to deposit the Fe particles on the surface of the particles of the Nd 2 Fe 14 B compound, drying and baking to make the nano-composite magnet having a core-shell structure including a hard magnetic phase of the Nd 2 Fe 14 B compound as the core and a soft magnetic phase of Fe as the shell. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种制备含有适当粒度的Fe颗粒的纳米复合磁体的方法。解决方案：该方法包括将含有表面活性剂的溶液加入到含有用于分散体的表面活性剂的溶剂中，然后加入Fe前体沉积的步骤包括：将N 2 Fe 14 在Fe 2 S 4 SBB化合物颗粒的表面上的Fe颗粒，干燥并烘烤以制备具有核 - 壳结构的纳米复合磁体，包括作为核的Nd 2 Fe 14 B的硬磁相和Fe的软磁相作为壳。版权所有（C）2008，JPO＆INPIT

37. 发明专利

JP2014093391A Rare earth magnet, and manufacturing method thereof 有权
标题翻译：稀土磁铁及其制造方法
公开(公告)号：JP2014093391A
公开(公告)日：2014-05-19
申请号：JP2012242528
申请日：2012-11-02
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： ICHIKIZAKI DAISUKE , MIYAMOTO NORITAKA , SHOJI TETSUYA , SAKUMA NORITSUGU , IKEDA YUYA
IPC分类号： H01F41/02 , B22F3/14 , B22F3/24 , C22C33/02 , C22C38/00 , H01F1/057 , H01F1/08
CPC分类号： H01F1/0576 , B22F3/12 , C22C1/04 , C22C28/00 , C22C30/00 , C22C38/00 , H01F41/0266 , H01F41/0273
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a rare earth magnet through a hot plastic working, and a rare earth magnet manufactured by this method, especially to provide a rare earth magnet which achieves good processability in hot plastic working by controlling, within an optimum range, the content of Pr making a component of an alloy, and which enables good coercive force performance and good magnetization performance under a high-temperature atmosphere, and a manufacturing method of such a rare earth magnet.SOLUTION: A method for manufacturing a rare earth magnet comprises: a first step for manufacturing a compact S by compacting magnetic powder B used as a rare earth magnet material, including a RE-Fe-B based main phase MP(RE represents Nd and Pr) and a grain boundary phase BP of RE-X alloy (X represents a metal element) around the main phase MP, and having an average grain diameter in a range of 10-200 nm in the main phase MP; and a second step for manufacturing a rare earth magnet C which is a nanocrystalline magnet by performing a hot plastic work on the compact S to impart anisotropy thereto. In the method, the magnetic powder B includes 25-35 at% of Nd, 0.5-1.5 at% of B, 2-7 at% of Co, 0.2-5 at% of Pr, and Fe.
摘要翻译：要解决的问题：提供通过热塑性加工制造稀土磁体的方法和通过该方法制造的稀土磁体，特别是提供一种稀土磁体，其通过控制在热塑性加工中实现良好的加工性能，最佳范围，制备合金成分的Pr的含量，并且其在高温气氛下具有良好的矫顽力性能和良好的磁化性能，以及这种稀土类磁铁的制造方法。稀土磁体包括：通过压制用作稀土类磁体材料的磁粉B的第一步骤，其包括基于RE-Fe-B的主相MP（RE表示Nd和Pr）和晶界相在主相MP周围的RE-X合金的BP（X表示金属元素），并且在主相MP中具有在10-200nm范围内的平均粒径; 以及通过对压块S进行热塑性加工来制造作为纳米晶体磁体的稀土磁体C以赋予其各向异性的第二步骤。在该方法中，磁粉B含有25-35at％的Nd，0.5-1.5at％的B，2-7at％的Co，0.2-5at％的Pr和Fe。

38. 发明专利

JP2013149862A Method of manufacturing rare earth magnet 审中-公开
标题翻译：制造稀土磁铁的方法
公开(公告)号：JP2013149862A
公开(公告)日：2013-08-01
申请号：JP2012010424
申请日：2012-01-20
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： ICHIKIZAKI DAISUKE , MANABE AKIRA , MIYAMOTO NORITAKA , HIRAOKA MOTOKI , SHOJI TETSUYA , OMURA SHINYA
IPC分类号： H01F41/02 , B22F3/00 , B22F3/14 , C22C28/00 , C22C33/02 , C22C38/00 , H01F1/057 , H01F1/08
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing a rare earth magnet ensuring a high coersive force and excellent magnetization, by diffusing and infiltrating a modified alloy uniformly into the whole magnetic powder becoming a rare earth magnet material.SOLUTION: The method of manufacturing a rare earth magnet includes a first step for mixing a magnetic powder Q consisting of the main phase MP of an RE-Fe-B system (RE: at least one kind of Nd, Pr, Y), and a grain boundary phase BR around the main phase MP, and a modified alloy powder T consisting of an RE-M-RH alloy (M: transition metal element or typical metal element, RH: heavy rare-earth metal) or an RE-M alloy, melting the modified alloy powder by performing hot press, and producing a compact S while infiltrating the melt T' to the boundary surface of magnetic powder, and a second step for manufacturing a rare earth magnet C (orientation magnet) by performing hot plasticity processing of the compact S.
摘要翻译：要解决的问题：提供一种制造稀土磁体的方法，其通过将改性合金均匀地扩散并渗入成为稀土类磁体材料的整个磁性粉末中，从而确保高的累积力和优异的磁化强度。解决方案：制造方法稀土磁体包括：第一步骤，用于混合由RE-Fe-B系统的主相MP（RE：至少一种Nd，Pr，Y）和与晶界相BR组成的磁粉Q 主相MP和由RE-M-RH合金（M：过渡金属元素或典型金属元素，RH：重稀土金属）或RE-M合金组成的改性合金粉末T，熔融改性合金通过进行热压制造粉末，并且在将熔融物T'渗透到磁粉的边界面的同时制造小型S，以及通过进行压缩机S的热塑性加工来制造稀土磁体C（取向磁体）的第二步骤。

39. 发明专利

JP2013098485A Manufacturing apparatus and manufacturing method for rare earth magnet 审中-公开
标题翻译：稀土磁铁制造装置及其制造方法
公开(公告)号：JP2013098485A
公开(公告)日：2013-05-20
申请号：JP2011242458
申请日：2011-11-04
申请人： Toyota Motor Corp , トヨタ自動車株式会社 , Yonekura Seisakusho:Kk , 株式会社米倉製作所
发明人： MANABE AKIRA , MIYAMOTO NORITAKA , ICHIKIZAKI DAISUKE , SHOJI TETSUYA , KISHIMOTO HIDESHI , ONISHI YASUHIRO
IPC分类号： H01F41/02 , B22F3/00 , B22F3/14 , C22C33/02 , H01F1/057 , H01F1/08 , H01F7/02
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing apparatus for a rare earth magnet in which thermal energy which is received in manufacturing steps from sintered compact to oriented magnet is reduced, crystal particles can be prevented from becoming coarse and manufacturing efficiency can be improved, and to provide a manufacturing method for the rare earth magnet.SOLUTION: A manufacturing apparatus 10 comprises at least a die 4 including a hollow where a first hollow 4a of which the cross-sectional area is relatively large and a second hollow 4b of which the cross-sectional area is relatively small are communicated, a first punch 2 which is freely movable within the first hollow, a second punch 3 which is freely movable within the second hollow, main drivers 5, 6 which make the first and second punches 2 and 3 close to each other or separate from each other, and a sub driver 7 which moves the die 4 relatively with respect to the first and second punches 2 and 3. The inside of a cavity C formed from the die 4 and the first and second punches 2 and 3 is filled with a powder (p) that becomes a rare earth magnet material, and a rare earth magnet is manufactured through movement control of the first and second punches 2 and 3, movement control of the die 4 and heating control.
摘要翻译：解决问题的方案为了提供一种稀土磁体的制造装置，其中从烧结体到定向磁铁的制造步骤中接收的热能减少，可以防止晶粒变粗，制造效率可以改进，并提供稀土磁体的制造方法。解决方案：制造装置10至少包括具有中空部的模具4，其中横截面积相对较大的第一中空部件4a和横截面积相对较小的第二中空部件4b被连通第一冲头2，其可在第一中空部内自由移动;第二冲头3，其能够在第二中空部分主驱动器5,6内自由移动，使第一和第二冲头2和3彼此靠近或分离; 以及相对于第一和第二冲头2和3相对移动模具4的副驱动器7.由模具4和第一和第二冲头2和3形成的模腔C的内部填充有粉末（p），通过第一和第二冲头2和3的移动控制，模具4的移动控制和加热控制来制造稀土磁体。版权所有（C）2013，JPO＆INPIT

40. 发明专利

JP2013084804A Manufacturing method of magnetic powder for forming sintered compact of rare earth magnet precursor 有权
标题翻译：用于形成稀土磁铁前驱体的烧结制备磁粉的制造方法
公开(公告)号：JP2013084804A
公开(公告)日：2013-05-09
申请号：JP2011224115
申请日：2011-10-11
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： SAKUMA NORITSUGU , KISHIMOTO HIDESHI , MIYAMOTO NORITAKA , KATO AKIRA , MANABE AKIRA , ICHIKIZAKI 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： PROBLEM TO BE SOLVED: To provide a manufacturing method of magnetic powder for forming a sintered compact of a rare earth magnet precursor in which the magnetic power without a coarse particle in a composition is exquisitely and efficiently screened to allow manufacturing the magnetic powder including the composition consisting of optimum nano-sized crystal grains.SOLUTION: There is provided a manufacturing method of a magnetic powder p for forming a sintered compact S which comprises crystal grains which are a Nd-Fe-B based main phase of a nanocrystal composition and a grain boundary phase, and is a precursor of a rare earth magnet which is formed by applying hot plastic processing to the sintered compact S to add anisotropy and diffusing an alloy in it for improving coercive field strength. In the manufacturing method, a molten metal is discharged on a cooling roller R to produce a quenched ribbon B, and the quenched ribbon is smashed into a size range between 50 μm and 1000 μm to produce the magnetic powder within a mass range between 0.0003 mg and 0.3 mg. The magnetic powder within the mass range is checked whether the magnetic powder is attracted to a magnet whose surface magnetic flux density is 2 mT or less. The magnetic powder p that is not attracted, is selected to be the magnetic powder to form the sintered compact S.
摘要翻译：解决的问题：提供一种用于形成稀土磁体前体的烧结体的磁性粉末的制造方法，其中组合物中没有粗颗粒的磁力被精确和有效地筛选以允许制造磁粉包括由最佳纳米级晶粒组成的组合物。解决方案：提供了一种用于形成烧结体S的磁性粉末p的制造方法，该烧结体S包括作为纳米晶体组成的Nd-Fe-B系主相和晶界相的晶粒，并且为通过对烧结体S进行热塑性加工而形成的稀土类磁体的前体，以增加其各向异性并扩散其中的合金以提高矫顽场强度。在制造方法中，将熔融金属排出到冷却辊R上，制成淬火带B，将淬火带粉碎成50μm〜1000μm的范围，制成磁铁粉末的质量范围为0.0003mg 和0.3mg。检查质量范围内的磁粉是否磁性粉末被吸引到表面磁通密度为2mT以下的磁体。未被吸引的磁性粉末p被选择为磁性粉末以形成烧结体S.版权所有（C）2013，JPO＆INPIT

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