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61. 发明专利

JP2003068551A Manufacturing method of rare earth permanent magnet 有权
标题翻译：稀土永磁体的制造方法
公开(公告)号：JP2003068551A
公开(公告)日：2003-03-07
申请号：JP2001255890
申请日：2001-08-27
申请人： Tdk Corp , ティーディーケイ株式会社
发明人： KATO EIJI , ISHIZAKA TSUTOMU
IPC分类号： B02C21/00 , B22F1/02 , B22F3/00 , B22F3/02 , B22F9/04 , C22C33/02 , H01F1/057 , H01F41/02
CPC分类号： H01F1/0577
摘要： PROBLEM TO BE SOLVED: To enjoy effect such as improvement in the degree of orientation due to the addition of lubricant, and at the same time to reduce the wear-and- tear of grinding equipment.
SOLUTION: As shown in Fig. 1 (a), after the starting raw material of an R-T-B (R = at least one or two kinds of a rare earth element containing Y, T = at least one or two kinds of transition metal elements, and B= boron)- based rare earth permanent magnet is ground coarsely, lubricant is added. Then, coarse powder where the lubricant is added is ground finely, and a solvent is added to the fine powder. In the solvent, the lubricant should be dissolved. Then, after the fine powder where the solvent is added is formed for obtaining a forming body, the forming body is sintered, thus enjoying effect such as improvement in the degree of orientation due to the addition of the lubricant, and at the same time reducing the wear-and-tear of grinding equipment.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：获得诸如改善由于添加润滑剂而导致的取向度的效果，同时减少研磨设备的磨损。解决方案：如图所示。在图1（a）中，在RTB的起始原料（R =至少一种或两种含有Y的稀土元素，T =至少一种或两种过渡金属元素，B =硼）稀土永磁体被粗磨，添加润滑剂。然后，将加入润滑剂的粗粉末精细研磨，向细粉末中加入溶剂。在溶剂中，应溶解润滑剂。然后，为了获得成形体而形成添加了溶剂的细粉末后，成形体被烧结，从而获得诸如改善由于添加润滑剂而导致的取向度的效果，同时减少研磨设备的磨损。

62. 发明专利

JP2002246253A METHOD OF MANUFACTURING SINTERED MAGNET 失效
公开(公告)号：JP2002246253A
公开(公告)日：2002-08-30
申请号：JP2001037745
申请日：2001-02-14
申请人： TDK CORP
发明人： HIDAKA TETSUYA , ISHIZAKA TSUTOMU , SAKAMOTO TOKUJI
IPC分类号： B22F3/00 , C22C38/00 , H01F1/053 , H01F1/057 , H01F1/08 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide an Nd2Fe14B-based sintered magnet that has sufficiently high coercive force in practical use even if aging treatment is not made. SOLUTION: This method is used for manufacturing the sintered magnet containing R that is at least one kind of rare earth elements, Fe, and B, and includes a formation process for forming the powder of a raw material alloy to obtain a forming body, and a sintering process for sintering the forming body to obtain a sintered body. In the sintering process, atmospheric pressure is set to 1 atmosphere or more and 10 atmospheres or less for at least a period from the time when relative density in the sintered body becomes 70% in heat-up to the time when fall in temperature is started.

63. 发明专利

JPH04216601A MATERIAL OF PERMANENT MAGNET, MANUFACTURE THEREOF AND BONDED MAGNET 失效
公开(公告)号：JPH04216601A
公开(公告)日：1992-08-06
申请号：JP41768490
申请日：1990-12-14
申请人： TDK CORP
发明人： YONEYAMA TETSUTO , ISHIZAKA TSUTOMU , FUKUNO AKIRA
IPC分类号： C22C33/02 , C22C38/00 , H01F1/053 , H01F1/055 , H01F1/08
摘要： PURPOSE:To raise the Curie temperature for securing the thermal stability by a method wherein an Sm-(Fe, Co) base magnet is composed of N and Cu as well as at least one element selected from Zr, Hf, Nb, Ta, W, Mo, Ti, V and Cr. CONSTITUTION:The title magnet is a two phase separation type precipitation hardening magnet composed of 5-15 atomic % of Sm, 1-17% of Cu, 0.1-10 atomic % of M (where M is at least one element selected from a group comprising Zr, Hf, Nb, Ta, W, Mo, Ti, V and Cr) and 0.5-25 atomic % of N and residual % of Fe or Fe and Co with residual Fe containing ratio exceeding 20 atomic %. Accordingly, the separated setting type magnet containing N can raise the Curie temperature thereby enabling the excellent thermal stability and high saturation magnetization to be secured.

64. 发明专利

JP2011211041A Rare earth sintered magnet and method for manufacturing the same, and motor and vehicle 有权
标题翻译：稀土烧结磁体及其制造方法，以及电机和车辆
公开(公告)号：JP2011211041A
公开(公告)日：2011-10-20
申请号：JP2010078638
申请日：2010-03-30
申请人： Tdk Corp , Tdk株式会社
发明人： TANAKA SATORU , BABA FUMITAKA , IWASAKI MAKOTO , ISHIZAKA TSUTOMU
IPC分类号： H01F1/08 , H01F1/053 , H01F41/02 , H02K1/27
摘要： PROBLEM TO BE SOLVED: To provide a rare earth sintered magnet having a highly plate film adhesion and superior magnetic characteristics.SOLUTION: The rare earth sintered magnet 10 includes: a magnet body containing rare-earth compound; and a plating film containing nickel or nickel alloy thereon. The containing coefficient of a heavy rare-earth element in a surface part of the magnet body is higher than that inside the magnet body surrounded by the surface part.
摘要翻译：要解决的问题：提供一种具有高的板膜粘附性和优异的磁特性的稀土烧结磁体。解决方案：稀土烧结磁体10包括：含有稀土化合物的磁体; 以及其上含有镍或镍合金的镀膜。磁体的表面部分中的重稀土元素的含有系数高于由表面部分包围的磁体内的含量系数。

65. 发明专利

JP2007088206A Manufacturing method of rare earth sintered magnet 有权
标题翻译：稀土烧结磁体的制造方法
公开(公告)号：JP2007088206A
公开(公告)日：2007-04-05
申请号：JP2005275206
申请日：2005-09-22
申请人： Tdk Corp , Tdk株式会社
发明人： ENOKIDO YASUSHI , ISHIZAKA TSUTOMU , MASUDA TAKESHI
IPC分类号： H01F41/02 , B22F1/00 , B22F3/02 , C21D6/00 , C22C19/07 , C22C33/02 , C22C38/00 , H01F1/08
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of a rare earth sintered magnet which can suppress rise of an installation cost and obtain a larger magnet with excellent accuracy and productivity by using an existing magnetic field formation device. SOLUTION: After a molded item is obtained by injecting granule of bulk density of 1.9 to 3.0 g/cm 3 to a die cavity, and performing press molding while applying magnetic filed; the molded item is sintered. In the process, the granule can be obtained by adding an organic liquid to primary alloy granule of a prescribed composition and attaching the primary alloy particle by the organic liquid. Furthermore, the granule can be also obtained by forming a preliminary molded item by performing press molding for the primary alloy particle and thereafter cracking the preliminary molded item. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决的问题：提供一种可以通过使用现有的磁场形成装置来以极好的精度和生产率来抑制安装成本上升并获得更大的磁体的稀土烧结磁体的制造方法。解决方案：通过将1.9〜3.0g / cm 3的堆积密度的颗粒注入模腔而获得成型品，并在施加磁场的同时进行冲压成型; 模制品被烧结。在此过程中，颗粒可以通过将有机液体加入到具有规定组成的一次合金颗粒中并通过有机液体附着第一合金颗粒而获得。此外，也可以通过对一次合金粒子进行加压成型来形成预成型品，然后使预成型品开裂，也可以获得颗粒。版权所有（C）2007，JPO＆INPIT

66. 发明专利

JP2006299402A Raw material alloy for r-t-b system sintered magnet and r-t-b system sintered magnet and producing method therefor 有权
标题翻译：用于R-T-B系统烧结磁体和R-T-B系统烧结磁体的原材料合金及其制造方法
公开(公告)号：JP2006299402A
公开(公告)日：2006-11-02
申请号：JP2006020062
申请日：2006-01-30
申请人： Tdk Corp , Tdk株式会社
发明人： ENOKIDO YASUSHI , NISHIZAWA KOICHI , ISHIZAKA TSUTOMU
IPC分类号： C22C38/00 , B22F1/00 , B22F3/00 , B22F3/02 , C22C33/02 , H01F1/053 , H01F1/08 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To obtain an R-T-B system sintered magnet having the high coercive force by further uniforming the crystal micro-structure of a raw material alloy produced with a strip casting method and making fine of the crushed power and narrow of the size distribution obtained from the raw material alloy. SOLUTION: The raw material alloy for R-T-B system magnet has the crystal grains composed of R 2 T 14 B compound and contains 100-950 ppm P and/or S contents. This raw material alloy is desirable to have the compositions composed of 25-35 wt.% R, 0.5-4 wt.% B, 0.02-0.6 wt.% one or two kinds of Al and Cu, 0.5-4 wt.% Co and the balance Fe with inevitable impurities. Wherein, R is one or more kinds of elements selected from rare earth meal group and T is one or more kinds of elements selected from the transition metal group containing Fe or Fe and Co. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题为了通过进一步使用带状铸造法生产的原料合金的晶体微结构进一步均匀化，获得具有高矫顽力的RTB系烧结磁体，并使粉碎功率的细小和从原料合金获得的粒度分布。解决方案：用于RTB系统磁体的原料合金具有由R 2 14 B化合物组成的晶粒，并含有100-950ppm的P和/或S 内容。该原料合金是希望具有由25-35重量％的R，0.5-4重量％的B，0.02-0.6重量％的一种或两种Al和Cu组成的组合物，0.5-4重量％的Co 余量为Fe与不可避免的杂质。其中，R为选自稀土粉组中的一种或多种元素，T为选自含有Fe或Fe和Co的过渡金属组中的一种或多种元素。（C）2007，JPO＆INPIT

67. 发明专利

JP2006279026A Method of producing rare earth sintered magnet 有权
标题翻译：生产稀土烧结磁体的方法
公开(公告)号：JP2006279026A
公开(公告)日：2006-10-12
申请号：JP2006050086
申请日：2006-02-27
申请人： Tdk Corp , Tdk株式会社
发明人： SAKAMOTO TOKUJI , IWASAKI MAKOTO , ISHIZAKA TSUTOMU , MASUDA TAKESHI
IPC分类号： H01F41/02 , B22F3/00 , B22F3/02 , C22C19/07 , C22C33/02 , C22C38/00 , H01F1/053
摘要： PROBLEM TO BE SOLVED: To provide a method of producing a rare earth sintered magnet having a high mold strength and also having a high magnetic characteristic of a finally produced sintered magnet. SOLUTION: The method of producing a rare earth sintered magnet has steps of: crushing a raw material alloy powder to produce a pulverized powder; pressure-molding the pulverized powder in conjunction with applying a magnetic field to the pulverized powder to produce a molded body; and sintering the molded body; wherein a lubricant agent is added to the raw material alloy powder and/or the pulverized powder, the lubricant agent containing: a compound A represented by the general formula R 1 -CONH 2 or R 1 -CONH-R 3 -HNCO-R 1 ; and a compound B represented by any one of the group consisting of R 2 -OCO-R 4 , R 2 -OCO-R 3 -OH, R 2 -OH, and (R 2 -COO) m M; R 1 , R 2 standing for C n H 2n+1 or C n H 2n-1 , R3 for C n H 2n , R 4 for H or C n H 2n+1 , M for metal, and n and m for integers. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：待解决的问题：提供一种制造具有高模具强度并且具有最终生产的烧结磁体的高磁特性的稀土烧结磁体的方法。解决方案：稀土烧结磁体的制造方法具有以下步骤：粉碎原料合金粉末，生成粉碎粉末; 对粉碎粉末进行加压成形，同时向粉碎的粉末施加磁场以制造成型体; 并烧结成型体; 其中向原料合金粉末和/或粉碎粉末中加入润滑剂，所述润滑剂含有：由通式R SB 1 -CONH SB 2表示的化合物A / >或R SB 1 -CONH-R SB 3 -HNCO-R SB 1; 和由下列组成的组中的任何一个表示的化合物B：R SB 2 -OCO-R SB 7，R SB 2 -OCO-R SB -OH，R SB 2 -OH和（R SB 2 -COO）M S; R 1 ，R 2 代替C H 2n + 1 或C n ，H 2n-1 ，R 3用于C H 2n ，R 4 n H 2n + 1 ，M表示金属，n和m表示整数。版权所有（C）2007，JPO＆INPIT

68. 发明专利

JP2006258616A Method of evaluating orientation degree, rare-earth sintered magnet and its manufacturing method 审中-公开
标题翻译：评估方位方法，稀土烧结磁体及其制造方法
公开(公告)号：JP2006258616A
公开(公告)日：2006-09-28
申请号：JP2005076732
申请日：2005-03-17
申请人： Tdk Corp , Tdk株式会社
发明人： SAKAMOTO TOKUJI , KATO EIJI , NISHIZAWA KOICHI , ISHIZAKA TSUTOMU
IPC分类号： G01N23/20 , B22F3/02 , H01F1/053 , H01F1/08 , H01F7/02 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide a method of evaluating an orientation degree capable of accurately evaluating the orientation degree in a macroscopic region, and to achieve a rare-earth sintered magnet whose whole orientation degree is high and which is excellent in magnetization characteristic or the like. SOLUTION: A molding obtained by compressively molding rare-earth alloy powder or its sintered compact is equally divided into odd number of pieces, and X-ray diffraction processes are applied on the divided pieces of the center section and the outermost section, and then orientation degrees of respective divided pieces are calculated by using a Lotgering method, thereby evaluating variations in the orientation degrees. When calculating them, vector compensation is applied on X-ray diffraction intensity of each diffraction peak. In the rare-earth sintered magnet, the difference of calculated orientation degree subjected to the vector compensation between the divided piece of the center section and the divided piece of the outermost section is 1.5% or less. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种评价能够准确地评价宏观取向度的取向度的方法，并且获得整个取向度高且磁化强度优异的稀土烧结磁体特征等。解决方案：将通过压缩成型稀土合金粉末或其烧结体获得的成型体等分成奇数，并将X射线衍射法施加到中心部分和最外部分的分割片上，然后通过使用浮法来计算各分割片的取向度，从而评价取向度的变化。当计算它们时，对每个衍射峰的X射线衍射强度施加矢量补偿。在稀土类烧结磁体中，中心部的分割片与最外侧的分割片之间的向量补偿的计算取向度的差为1.5％以下。版权所有（C）2006，JPO＆NCIPI

69. 发明专利

JP2006173585A Rare-earth sintered magnet 有权
标题翻译：稀土烧结磁铁
公开(公告)号：JP2006173585A
公开(公告)日：2006-06-29
申请号：JP2005332251
申请日：2005-11-17
申请人： Tdk Corp , Tdk株式会社
发明人： ENOKIDO YASUSHI , NISHIZAWA KOICHI , ISHIZAKA TSUTOMU
IPC分类号： H01F41/02 , H01F1/053
摘要： PROBLEM TO BE SOLVED: To provide a technology to improve a contact strength between a magnet body and a protective film. SOLUTION: The rare-earth sintered magnet is provided with a magnet body made of a sintered compact containing a rear earth element and a protective film formed on the surface of the magnet body, wherein the ratio between an average crystal grain diameter D50 of the magnet body and ten-point average roughness Rz of the magnet body with the protecting film formed thereon, Rz/D50, is prescribed to be 0.20 or more and 10.00 or less. Therefore, the contact strength of the protective film is made as high as 100 N/m or more, thereby providing a rare-earth sintered magnet having an excellent corrosion-resistance. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种提高磁体与保护膜之间的接触强度的技术。解决方案：稀土烧结磁体设置有由包含形成在磁体主体的表面上的后土元素和保护膜的烧结体制成的磁体，其中平均晶粒直径D50 和其上形成有保护膜的磁体Rz / D50的十点平均粗糙度Rz规定为0.20以上且10.00以下。因此，保护膜的接触强度高达100N / m以上，从而提供耐腐蚀性优异的稀土类烧结磁体。版权所有（C）2006，JPO＆NCIPI

70. 发明专利

JP2006128598A Process for producing rare earth sintered magnet, equipment for producing granule 有权
标题翻译：生产稀土烧结磁体的方法，生产颗粒的设备
公开(公告)号：JP2006128598A
公开(公告)日：2006-05-18
申请号：JP2005052458
申请日：2005-02-28
申请人： Tdk Corp , Tdk株式会社
发明人： ENOKIDO YASUSHI , BABA FUMITAKA , ISHIZAKA TSUTOMU , MASUDA TAKESHI
IPC分类号： H01F41/02 , B22F1/00 , B22F3/00 , B22F3/02 , C22C19/07 , C22C38/00 , H01F1/053 , H01F1/08
摘要： PROBLEM TO BE SOLVED: To provide a process for producing a rare earth sintered magnet having excellent fluidity efficiently while enhancing dimensional precision and productivity of a molding without lowering characteristics significantly. SOLUTION: Primary alloy particles of a rare earth sintered magnet and organic liquid as a granulization assistant are thrown into the chamber 11 of a granulator 10. In the granulator 10, the primary alloy particles are aggregated through the organic liquid by rotating a main rotor 12 provided in the chamber 11 and granules are produced by deaggregating the aggregate by means of an auxiliary rotor 13 provided in the chamber 11. The granules thus produced are thrown into a die cavity and subjected to molding in magnetic field thus producing a molding, which is then sintered to obtain a rare earth sintered magnet. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：提供一种具有优异的流动性的稀土类烧结磁体的制造方法，同时提高模具的尺寸精度和生产率而不降低特性。解决方案：将稀土烧结磁体的初级合金颗粒和作为造粒助剂的有机液体投入造粒机10的室11中。在造粒机10中，一次合金颗粒通过旋转一个设置在室11中的主转子12和颗粒通过借助于设置在室11中的辅助转子13使聚集体解聚而制成。将如此制造的颗粒投入模腔中并在磁场中成型，从而产生模制，然后将其烧结以获得稀土烧结磁体。版权所有（C）2006，JPO＆NCIPI

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