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51. 发明专利

JP2013138127A 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：JP2013138127A
公开(公告)日：2013-07-11
申请号：JP2011288650
申请日：2011-12-28
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： MIYAMOTO NORITAKA , ICHIKIZAKI DAISUKE , SHOJI TETSUYA , MANABE AKIRA , IKEDA YUYA
IPC分类号： H01F41/02 , B22F1/00 , B22F3/00 , B22F3/24 , C22C38/00 , H01F1/055 , H01F1/08
摘要： PROBLEM TO BE SOLVED: To provide a production method of a rare earth magnet using hot plastic processing, the method capable of producing a rare earth magnet with high degree of orientation, by obtaining enough plastic deformation while preventing the generation of cracks on the sides of a compact to be plastic deformed in the hot plastic processing.SOLUTION: Disclosed is a production method of a rare earth magnet, comprising: a first step of pressure molding powder B that is a rare earth magnet material, and producing a compact S with the upper, the lower and the side surfaces; and a second step of disposing a frame material C on the side surfaces of the compact S, the frame material C having relatively higher ductility than the compact S, to form a unit body U with covered side surfaces, punching the unit body U with an upper and a lower punches P and P, and performing hot plastic processing that adds anisotropy while directly pressing the upper and the lower surfaces of the compact S with the upper and the lower punches P and P so as to produce a rare earth magnet, that is to say an orientation magnet S'.
摘要翻译：要解决的问题：为了提供使用热塑性加工的稀土磁体的制造方法，可以通过获得足够的塑性变形同时防止在侧面产生裂纹而能够制造具有高取向度的稀土磁体的方法一种在热塑性加工中塑性变形的结构。本发明公开了一种稀土磁体的制造方法，其特征在于，包括：第一工序，对作为稀土类磁铁材料的粉末B进行加压成型，上，下和侧面; 以及第二步骤，将框架材料C设置在具有比压块S相对更高延展性的压块S的框架材料C的侧表面上，以形成具有被覆盖的侧表面的单位体U，上冲头和下冲头P和P，并且执行加热各向异性的热塑性加工，同时用上下冲头P和P直接挤压压坯S的上表面和下表面以产生稀土磁体，是取向磁铁S'。

52. 发明专利

JP2012142388A Method for producing rare earth magnet 审中-公开
标题翻译：生产稀土磁铁的方法
公开(公告)号：JP2012142388A
公开(公告)日：2012-07-26
申请号：JP2010293431
申请日：2010-12-28
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： MIYAMOTO NORITAKA , SHOJI TETSUYA , OMURA SHINYA , ICHIKIZAKI DAISUKE
IPC分类号： H01F41/02 , B22F1/00 , B22F3/00 , B22F3/17 , B22F3/20 , B22F3/24 , C22C38/00 , H01F1/057 , H01F1/08
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a rare earth magnet, capable of increasing magnetic flux density and simultaneously increasing coercivity by actively utilizing hot plastic working for the crystalline orientation of a rare earth magnet.SOLUTION: In the method for producing a rare earth magnet, powder of a rare earth magnet material having a composition of R-T-B (R: a rare earth element, and T: Fe or Fe+Co) is added with a fluoride of metal or an alloy to be mixed, the obtained mixed powder is subjected to a formation process to form a bulk body, and then hot plastic working is performed. A content of R is adjusted to 28-33% by mass, and the hot plastic working is performed at 550-800°C.
摘要翻译：要解决的问题：提供一种稀土磁体的制造方法，其能够通过积极地利用热塑性加工用于稀土类磁体的结晶取向来提高磁通密度并同时提高矫顽力。解决方案：在稀土类磁铁的制造方法中，添加具有RTB（R：稀土元素，T：Fe或Fe + Co）组成的稀土类磁铁材料的粉末，金属或合金，对所得到的混合粉末进行成形处理以形成体本体，然后进行热塑性加工。将R的含量调整为28〜33质量％，热塑性加工在550〜800℃下进行。版权所有（C）2012，JPO＆INPIT

53. 发明专利

JP2011129768A Rare earth magnet and method of manufacturing the same 有权
标题翻译：稀土磁铁及其制造方法
公开(公告)号：JP2011129768A
公开(公告)日：2011-06-30
申请号：JP2009287911
申请日：2009-12-18
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： SAKUMA NORITSUGU , SHOJI TETSUYA , YANO MASAO
IPC分类号： H01F1/053 , C21D6/00 , C22C38/00 , H01F1/08 , H01F41/02
CPC分类号： H01F1/0571 , B82Y25/00 , C22C33/003 , C22C38/002 , C22C38/005 , C22C45/02 , C22F3/00 , H01F1/0579
摘要： PROBLEM TO BE SOLVED: To provide a rare earth magnet increasing coercive force by accelerating nanosizing of crystal grains by presence of a grain boundary phase. SOLUTION: The rare earth magnet has a composition expressed by formula: R a H b Fe c Co d B e M f , wherein; R:at least one kind of rare earth elements including Y, H:at least one kind of heavy rare earth elements Dy and Tb, M:at least one kind of Ga, Zn, Si, Al, Nb, Zr, Ni, Cu, Cr, Hf, Mo, P, C, Mg and V, and 13≤a≤20, 0≤b≤4, c=100 -a-b-d-e-f , 0≤d≤30, 4≤e≤20, 0≤f≤3, and comprises a main phase:(RH) 2 (FeCo) 14 B phase, and a grain boundary phase:(RH)(FeCo) 4 B 4 phase and an RH phase, and has a structure of a crystal grain size of 10-200 nm. The manufacturing method is characterized by quench-solidifying a molten alloy having the above composition. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：通过晶界相的存在通过加速晶粒的纳米尺寸来提供稀土磁体增加矫顽力。
解决方案：稀土磁体具有由下式表示的组成：R a H SB SB> B SB 其中; R：至少有一种稀土元素包括Y，H：至少一种重稀土元素Dy和Tb，M：至少一种Ga，Zn，Si，Al，Nb，Zr，Ni，Cu ，Cr，Hf，Mo，P，C，Mg和V，13≤a≤20,0≤b≤4，c = 100 -abdef ，0≤d≤30,4≤e ≤20,0≤f≤3，并且包括主相：（RH） 2 （FeCo） 14 B相，晶界相：（RH） FeCo）SB SB 4相和RH相，晶体结构为10〜200nm。制造方法的特征在于淬火固化具有上述组成的熔融合金。版权所有（C）2011，JPO＆INPIT

54. 发明专利

JP2011100881A Method for manufacturing nanocomposite magnet 有权
标题翻译：制造纳米复合磁体的方法
公开(公告)号：JP2011100881A
公开(公告)日：2011-05-19
申请号：JP2009255140
申请日：2009-11-06
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： YANO MASAO , SAKUMA NORITSUGU , SHOJI TETSUYA
IPC分类号： H01F41/02 , B22F1/00 , B22F3/00 , B22F9/08 , C22C38/00 , H01F1/053 , H01F1/08
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a nanocomposite magnet with satisfactory magnetic characteristics without generating a coarse crystal grain due to crystallization in sintering.
SOLUTION: In the method for manufacturing the nanocomposite magnet, the temperature of a quenched alloy is raised to the temperature below crystallization temperature by rapidly raising temperature under pressure for sintering. The quenched alloy is composed of a quench composition comprising a hard magnetic phase and soft magnetic phase and whose crystalline organization is 85 wt.%.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种制造具有令人满意的磁特性的纳米复合磁体的方法，而不会由于烧结中的结晶而产生粗晶粒。解决方案：在制造纳米复合磁体的方法中，通过在压力下快速升高烧结温度将淬火合金的温度升高到低于结晶温度的温度。淬火合金由包含硬磁相和软磁相的淬火组合物组成，其结晶组成为85重量％。版权所有（C）2011，JPO＆INPIT

55. 发明专利

JP2010263121A METHOD FOR PRODUCING FePd/Fe NANOCOMPOSITE MAGNET AND NANOCOMPOSITE MAGNET PRODUCED BY THE SAME 审中-公开
标题翻译：生产FePd / Fe纳米复合磁铁的方法及其生产的纳米复合磁铁
公开(公告)号：JP2010263121A
公开(公告)日：2010-11-18
申请号：JP2009113761
申请日：2009-05-08
申请人： Toyota Motor Corp , Univ Of Tsukuba , トヨタ自動車株式会社 , 国立大学法人筑波大学
发明人： SAKUMA NORITSUGU , KATO AKIRA , SHOJI TETSUYA , TERANISHI TOSHIJI
IPC分类号： H01F1/09 , B22F1/02 , B22F9/22 , C22C38/00 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide a method for producing an FePd/Fe nanocomposite magnet that changes composition so that ratios of hard and soft magnetic phases may be changed in various ways, and the FePd/Fe nanocomposite magnet produced by the method. SOLUTION: There is provided a method for producing an FePd/Fe nanocomposite magnet that uses FePd as a core and Fe as a shell, comprising: a process 1 to produce Pd/Fe 2 O 3 nanocomposite particles using a Pd nano particle as a core and an Fe 2 O 3 particle as a shell, a process 2 to produce Pd-impregnated Fe 2 O 3 /Pd nanocomposite particles by adding Pd to the Fe 2 O 3 /Pd nanocomposite particles while protecting the Pd nanoparticle with a surfactant, and a process 3 of hydrogen reduction treatment to heat the Pd-impregnated Fe 2 O 3 /Pd nanocomposite particles in hydrogen atmosphere. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：待解决的问题：提供一种改变组成以使硬磁相和软磁相的比例可以各种变化的FePd / Fe纳米复合磁体的制造方法，通过该方法制造的FePd / Fe纳米复合磁体。提供一种以FePd为芯，Fe为壳的FePd / Fe纳米复合磁体的制造方法，其特征在于，包括：制造Pd / Fe O < SB> 3 纳米复合材料颗粒，使用Pd纳米颗粒作为核心和Fe 2 O 3 颗粒作为壳，制备Pd浸渍通过将Pd添加到Fe / SB> 3 SB / Pd / Pd纳米复合材料颗粒中，通过添加Pd而将Fe 2 O 3 SBS / Pd纳米复合材料颗粒用表面活性剂保护Pd纳米颗粒，以及氢气还原处理方法3，以在氢气气氛中加热Pd浸渍的Fe / SB / O 3 SB / Pd / Pd纳米复合材料颗粒。版权所有（C）2011，JPO＆INPIT

56. 发明专利

JP2010258236A METHOD FOR PRODUCING FePd/Fe NANOCOMPOSITE MAGNET, AND NANOCOMPOSITE MAGNET PRODUCED BY THE SAME 审中-公开
标题翻译：生产FePd / Fe纳米复合磁铁的方法及其生产的纳米复合磁铁
公开(公告)号：JP2010258236A
公开(公告)日：2010-11-11
申请号：JP2009106981
申请日：2009-04-24
申请人： Toyota Motor Corp , Univ Of Tsukuba , トヨタ自動車株式会社 , 国立大学法人筑波大学
发明人： SAKUMA NORITSUGU , KATO AKIRA , SHOJI TETSUYA , TERANISHI TOSHIJI
IPC分类号： H01F1/06 , B22F1/00 , B22F1/02 , B22F9/22
摘要： PROBLEM TO BE SOLVED: To provide a method for producing an FePd/Fe nanocomposite magnet that secures a desired αFe volume fraction by preventing Fe 3 C from being produced, and secures high residual magnetization and saturation magnetization, and to provide the nanocomposite magnet produced by the same. SOLUTION: The method for producing the FePd/Fe nanocomposite magnet composed of FePd as a core and Fe as a shell includes an ozone processing step of heating γFe 2 O 3 /Pd composite nanoparticles composed of Pd nanoparticles as a core and γFe 2 O 3 nanoparticles as a shell in an ozone atmosphere, and a hydrogen reduction processing step of heating the ozone-processed γFe 2 O 3 /Pd composite nanoparticles in a hydrogen atmosphere. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种FePd / Fe纳米复合磁体的制造方法，其通过防止产生Fe <3> 3 C而确保所需的αFe体积分数，并且确保高剩余磁化强度和饱和度磁化，并提供由其制造的纳米复合磁体。解决方案：以FePd为芯和Fe为壳的FePd / Fe纳米复合磁体的制造方法包括：加热γFe O 3

57. 发明专利

JP2010189721A Core/shell type pd/fe2o3nanoparticle, method for producing the same, and fepd/fe nanoparticle obtained by using the same 审中-公开
标题翻译：核心/壳型PD / FE2O3纳米颗粒，其制备方法和使用其获得的FEPD / FE纳米颗粒
公开(公告)号：JP2010189721A
公开(公告)日：2010-09-02
申请号：JP2009035685
申请日：2009-02-18
申请人： Toyota Motor Corp , Univ Of Tsukuba , トヨタ自動車株式会社 , 国立大学法人筑波大学
发明人： SAKUMA NORITSUGU , KATO AKIRA , SHOJI TETSUYA , TERANISHI TOSHIJI
IPC分类号： B22F1/02 , B22F9/22 , B22F9/24 , B82B1/00 , B82B3/00 , H01F1/00 , H01F1/06
摘要： PROBLEM TO BE SOLVED: To provide a Pd/Fe 2 O 3 nanoparticle which can give an FePd/Fe magnetic nanoparticle in which the formation of the coarsened part of Fe is suppressed, and individual particles are isolated by performing hydrogen reduction heat treatment, to provide a method for producing the same, and to provide an FePd/Fe magnetic nanoparticle in which the formation of the coarsened part of Fe is suppressed, and individual particles are isolated. SOLUTION: The core/shell type Pd/Fe 2 O 3 b nanoparticle is composed of a Pd core phase and an Fe 2 O 3 shell phase in which a core/shell structure can be confirmed by evaluation according to at least one element analysis by a TEM image, a HAADF image or an EDX (Energy Dispersive X-ray Spectrometer), and in which the average Pd compositional ratio obtained by EDX is ≤50 atm%. The production method uses the core/shell type Pd/Fe 2 O 3 nanoparticle. The FePd/Fe nanoparticle is obtained by subjecting the core/shell type Pd/Fe 2 O 3 nanoparticle to hydrogen reduction heat treatment. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供可以产生FePd / Fe磁性纳米颗粒的Pd / Fe 2 O 3 SBS纳米颗粒，其中形成粗大部分的 Fe被抑制，通过进行氢还原热处理分离单个颗粒，提供其制造方法，并提供抑制Fe的粗化部分的形成的FePd / Fe磁性纳米粒子，被隔离。解决方案：核/壳型Pd / Fe 2 3 b纳米颗粒由Pd核相和Fe 2 根据通过TEM图像，HAADF图像或EDX（能量色散X射线光谱仪）的至少一个元素分析，可以确定核/壳结构的壳/壳结构，其中通过EDX获得的平均Pd组成比为≤50atm％。该制备方法使用核/壳型Pd / Fe 2 3 纳米颗粒。通过使核/壳型Pd / Fe 2 3 纳米颗粒进行氢还原热处理而获得FePd / Fe纳米颗粒。版权所有（C）2010，JPO＆INPIT

58. 发明专利

JP2008248367A METHOD FOR PRODUCING COMPOSITE NANOPARTICLE HAVING FePt CORE/Co SHELL STRUCTURE 审中-公开
标题翻译：生产具有FePt核/ Co壳结构的复合纳米材料的方法
公开(公告)号：JP2008248367A
公开(公告)日：2008-10-16
申请号：JP2007094769
申请日：2007-03-30
申请人： Kyoto Univ , Toyota Motor Corp , トヨタ自動車株式会社 , 国立大学法人京都大学
发明人： YAMAMOTO SHINPEI , SATO TAKESHI , SHOJI TETSUYA , KATO AKIRA , SAKUMA NORITSUGU
IPC分类号： B22F1/02 , B82B3/00 , C23C18/04 , C23C18/08
摘要： PROBLEM TO BE SOLVED: To provide a method for producing composite nanoparticles having an FePt core/Co shell structure exhibiting excellent characteristics.
SOLUTION: In the method for producing composite nanoparticles having an FePt core/Co shell structure where FePt core particles of nanosizes are coated with a Co shell, a polar solvent is added to a first solution in which FePt core particles previously subjected to heat treatment for forming a crystal structure exhibiting required characteristics are dispersed into a first organic solvent with a first dispersant, thus the first dispersant is peeled away from the FePt core particles, and the FePt core particles are flocculated and recovered, a zero-valent Co-containing compound as the precursor of a shell is added to a second solution obtained by dispersing the recovered core particles into a second organic solvent with a second dispersant, so as to form a Co shell on the surface of each FePt core particle.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决问题的方法：提供具有优异特性的FePt核/ Co壳结构的复合纳米粒子的制造方法。解决方案：在具有FePt核/ Co壳结构的复合纳米颗粒的制造方法中，其中纳米尺度的FePt核心颗粒被Co壳涂覆，将极性溶剂加入到先前经受过FePt核心颗粒的第一溶液中形成具有所需特性的晶体结构的热处理用第一分散剂分散在第一有机溶剂中，第一分散剂从FePt芯颗粒上剥离，FePt芯颗粒絮凝和回收，零价Co 加入到通过用第二分散剂将回收的芯颗粒分散到第二有机溶剂中而获得的第二溶液中，以在每个FePt核心颗粒的表面上形成Co壳。版权所有（C）2009，JPO＆INPIT

59. 发明专利

JP2008138243A METHOD FOR PRODUCING Fe/Pd COMPOSITE NANOPARTICLE 审中-公开
标题翻译：生产Fe / Pd复合纳米粒子的方法
公开(公告)号：JP2008138243A
公开(公告)日：2008-06-19
申请号：JP2006324080
申请日：2006-11-30
申请人： Toyota Motor Corp , Univ Of Tsukuba , トヨタ自動車株式会社 , 国立大学法人筑波大学
发明人： TERANISHI TOSHIJI , NAKAMURA NAOKI , SHOJI TETSUYA , SAKUMA NORITSUGU
IPC分类号： B22F9/24 , B82B3/00
摘要： PROBLEM TO BE SOLVED: To provide a method for producing Fe/Pd composite nanoparticles. SOLUTION: The method for producing the Fe/Pd composite nanoparticles includes the steps of: dissolving a salt of Fe and a salt of Pd in a solvent containing a detergent; adding a reducing agent; and heating the mixture to reduce Fe ions composing the salt of Fe and Pd ions composing the salt of Pd. COPYRIGHT: (C)2008,JPO&INPIT

60. 发明专利

JP2007109705A Nano-composite magnet and its production process 审中-公开
标题翻译：纳米复合磁体及其生产工艺
公开(公告)号：JP2007109705A
公开(公告)日：2007-04-26
申请号：JP2005296269
申请日：2005-10-11
申请人： Toyota Motor Corp , Univ Of Tsukuba , トヨタ自動車株式会社 , 国立大学法人筑波大学
发明人： TERANISHI TOSHIJI , SHOJI TETSUYA , NAKAMURA NAOKI
IPC分类号： H01F41/02 , H01F1/053
摘要： PROBLEM TO BE SOLVED: To provide a nano-composite magnet having excellent magnetic characteristics by compounding hard magnetic nano-particles and soft magnetic nano-particles, and to provide its production process. SOLUTION: A hard magnetic nano-particle layer where multiple hard magnetic nano-particles are arranged planarly with no overlap in close-packed regular arrangement, and a soft magnetic nano-particle layer where soft magnetic nano-particles are similarly arranged planarly with no overlap in close-packed regular arrangement are laminated alternately to produce a nano-composite magnet having a regular superlattice structure as a whole. In the production process of a nano-composite magnet, a step for forming any one of the hard magnetic nano-particle layer or the soft magnetic nano-particle layer on the substrate by Langmuir-Blodgett method, and a step for forming the other layer on the one layer, are performed at least once. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过混合硬磁性纳米颗粒和软磁性纳米颗粒来提供具有优异磁特性的纳米复合磁体，并提供其制造方法。解决方案：一种硬磁纳米颗粒层，其中多个硬磁性纳米颗粒平面排列而不是紧密堆积的排列重叠，以及软磁性纳米颗粒层，软磁性纳米颗粒平面地类似地布置在紧密堆积的规则排列中没有重叠交替层叠以制造整体上具有规则的超晶格结构的纳米复合磁体。在纳米复合磁体的制造方法中，通过Langmuir-Blodgett法在基板上形成硬磁性纳米粒子层或软磁性纳米粒子层中的任意一个的工序，以及形成其他层的工序在一层上至少执行一次。版权所有（C）2007，JPO＆INPIT

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