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11. 发明公开

EP2977997A1 RFeB-BASED SINTERED MAGNET PRODUCTION METHOD AND RFeB-BASED SINTERED MAGNETS 审中-公开
标题翻译： RFEB-SINTERMAGNET上的RFEB-SINTERMAGNETEN HERSTELLUNGSVERFAHRENFÜR
公开(公告)号：EP2977997A1
公开(公告)日：2016-01-27
申请号：EP14768056.5
申请日：2014-03-13
申请人： Intermetallics Co. Ltd. , Daido Steel Co.,Ltd.
发明人： SAGAWA, Masato , TAKAGI, Shinobu
IPC分类号： H01F41/02 , B22F1/00 , B22F3/24 , B22F9/00 , C22C38/00 , H01F1/057 , H01F1/08
CPC分类号： B23K20/02 , B22F1/0011 , B22F1/0059 , B22F1/0062 , B22F3/004 , B22F3/10 , B22F5/006 , B22F7/064 , B22F9/04 , B22F9/08 , B22F2009/044 , B22F2302/45 , B22F2304/058 , B22F2304/10 , B22F2998/10 , B22F2999/00 , B23K20/002 , B23K20/14 , C22C28/00 , C22C38/00 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/06 , C22C38/10 , C22C38/16 , C22C2202/02 , H01F1/0536 , H01F1/0577 , H01F7/021 , H01F41/0293 , B22F2202/05
摘要： The present invention addresses the problem of providing a method for easily producing an RFeB system sintered magnet having high coercivity and being capable of suppressing the influence of eddy current during a period of use while being composed of a plurality of unit sintered magnets strongly bonded together. It is a method for producing an RFeB system sintered magnet composed of at least two unit sintered magnets 11 bonded to each other at flat bonding surfaces, each unit sintered magnet composed of crystal grains whose main phase is made of R 2 Fe 14 B containing, as a main rare-earth element R, a light rare-earth element R L which is at least one element selected from the group of Nd and Pr. A paste 12 prepared by mixing an organic matter and a metallic powder containing at least one element selected from the heavy rare-earth elements R H of Dy, Ho and Tb is sandwiched between the mutually neighboring unit sintered magnets 11, and a grain boundary diffusion treatment is performed by performing a heating process, with the paste 12 in contact with each bonding surface. The coercivity is improved by this grain boundary diffusion treatment. Furthermore, since an oxide or similar compound of R H and/or R L is formed at the boundary of the unit sintered magnets 11, the influence of eddy current during a period of use is suppressed, and the unit sintered magnets 11 are strongly bonded together.
摘要翻译：本发明解决了提供一种易于制造矫顽磁力高的RFeB系烧结磁体的方法的问题，并且能够在使用期间抑制涡电流的影响，同时由多个牢固地结合在一起的单元烧结磁体构成。它是一种制造RFeB系烧结磁体的方法，该烧结磁体由在平坦的接合表面彼此接合的至少两个单元烧结磁体11组成，每个单元烧结磁体由主相由R 2 Fe 14 B构成的晶粒组成，作为主要的稀土元素R，作为选自Nd和Pr中的至少一种元素的轻质稀土类元素RL。通过混合有机物和含有选自Dy，Ho和Tb的重稀土元素RH中的至少一种元素的金属粉末制成的糊料12夹在相互相邻的单位烧结磁体11之间，并且晶界扩散处理通过进行加热处理，膏体12与各粘合面接触。通过这种晶界扩散处理提高矫顽力。此外，由于在单位烧结磁体11的边界处形成了R H和/或R L的氧化物或类似化合物，所以在使用期间的涡电流的影响被抑制，单位烧结磁体11牢固地结合在一起。

12. 发明公开

EP2955731A4 SINTERED MAGNET PRODUCTION DEVICE AND SINTERED MAGNET PRODUCTION METHOD 审中-公开
标题翻译：器具，用于产生一种生产烧结磁体的烧结磁铁和方法
公开(公告)号：EP2955731A4
公开(公告)日：2016-01-20
申请号：EP14748535
申请日：2014-02-03
申请人： INTERMETALLICS CO LTD , DAIDO STEEL CO LTD
发明人： SAGAWA MASATO , MIZOGUCHI TETSUHIKO , YOSHIKAWA NORIO
IPC分类号： H01F41/02 , B22F3/00 , B22F3/02 , B22F3/10 , H01F1/055 , H01F1/057 , H01F1/08 , H01F13/00
CPC分类号： H01F41/0273 , B22F3/10 , C22C2202/02 , F27B9/067 , F27B9/20 , F27B9/36 , F27B9/38 , F27D5/00 , Y02P10/253
摘要： The present invention addresses the problem of providing a sintered magnet production system using a press-less method capable of minimizing the distortion of a sintered magnet. It is a system including: a filling device 11 for filling a cavity 211 of a container 21 with alloy powder of a material for a sintered magnet; an orienting section 13 for orienting the alloy powder held in the cavity 211 by applying a magnetic field without applying a mechanical pressure to the alloy powder; and a sintering section 15 for sintering the alloy powder oriented by the orienting section 13, by heating the alloy powder without applying a mechanical pressure to the alloy powder. The orienting section includes: an air-core coil 131; and two ferromagnetic members 132 made of a ferromagnetic material to be arranged within the air-core coil 131 at respective open ends of the air-core coil 131 with a space for containing the container 21 in between. The ferromagnetic members 132 adjust the magnetic field within the air-core coil 131 toward a direction parallel to the axis of the air-core coil 131, whereby the distortion of a sintered magnet is minimized.

13. 发明公开

EP2800108A4 SINTERED NEODYMIUM MAGNET 有权转让
标题翻译：烧结钕磁铁
公开(公告)号：EP2800108A4
公开(公告)日：2015-08-12
申请号：EP12863318
申请日：2012-12-27
申请人： INTERMETALLICS CO LTD
发明人： SAGAWA MASATO , MIZOGUCHI TETSUHIKO
IPC分类号： H01F1/08 , B22F1/00 , B22F3/00 , C22C33/02 , H01F1/057 , H01F41/02
CPC分类号： H01F1/0577 , C22C33/02 , C22C38/005 , C22C2202/02 , H01F41/0293
摘要： Provided is a NdFeB system sintered magnet which is produced by the grain boundary diffusion method and yet has a high coercive force and squareness ratio with only a small decrease in the maximum energy product. A NdFeB system sintered magnet according to the present invention is a NdFeB system sintered magnet having a base material produced by orienting powder of a NdFeB system alloy and sintering the powder, with Dy and/or Tb (the "Dy and/or Tb" is hereinafter called R H ) attached to and diffused from a surface of the base material through the grain boundary inside the base material by a grain boundary diffusion treatment, wherein the difference C s -C d3 between the R H content C s (wt%) in the grain boundary reaching the surface to which R H is attached and the R H content C d3 (wt%) in the grain boundary at a depth of 3 mm from the aforementioned attachment surface is equal to or smaller than 20 wt%.

14. 发明公开

EP2889883A1 NDFEB-BASED SINTERED MAGNET 有权转让
标题翻译：基于NDFEB的烧结磁体
公开(公告)号：EP2889883A1
公开(公告)日：2015-07-01
申请号：EP13833670.6
申请日：2013-08-27
申请人： INTERMETALLICS CO., LTD.
发明人： MIZOGUCHI, Tetsuhiko , SAGAWA, Masato
IPC分类号： H01F1/08 , C22C38/00 , H01F1/057 , H01F41/02
CPC分类号： H01F1/0577 , C22C38/002 , C22C38/005 , C22C38/06 , C22C38/10 , C22C38/16 , H01F1/086 , H01F41/0293
摘要： The present invention aims to provide a NdFeB system sintered magnet capable of improving the magnetization characteristic. The NdFeB system sintered magnet according to the present invention is a NdFeB system sintered magnet with the c axis oriented in one direction, characterized in that: the median of the grain size of the crystal grains at a section perpendicular to the c axis is 4.5 µm or less, and the area ratio of the crystal grains having grain sizes of 1.8 µm or smaller on the aforementioned section is 5 % or lower. The median of the grain size is decreased (to 4.5 µm or less), whereby improve the coercive force is improved. Simultaneously, the area ratio of the crystal grains having grain sizes of 1.8 µm or smaller is decreased (to 5 % or lower) to reduce the number of crystal grains having no magnetic wall formed, whereby the magnetization characteristic is improved.
摘要翻译：本发明旨在提供一种能够改善磁化特性的NdFeB系烧结磁体。本发明的NdFeB系烧结磁铁是c轴取向为一个方向的NdFeB系烧结磁铁，其特征在于，与c轴正交的截面的晶粒的中值粒径为4.5μm 以下，上述截面中的粒径为1.8μm以下的晶粒的面积率为5％以下。晶粒尺寸的中值减小（至4.5μm或更小），由此提高矫顽力得到改善。同时，具有1.8μm或更小的晶粒尺寸的晶粒的面积比减小（至5％或更低）以减少没有形成磁壁的晶粒的数量，由此提高了磁化特性。

15. 发明公开

EP1083125A2 Method and apparatus for packing material 审中-公开
标题翻译： Verfahren und Vorrichtung zum Verdichten von材料
公开(公告)号：EP1083125A2
公开(公告)日：2001-03-14
申请号：EP00119314.3
申请日：2000-09-06
申请人： Intermetallics Co., Ltd.
发明人： Sagawa, Masato , Nagata, Hiroshi
IPC分类号： B65B1/26 , B65B63/02
CPC分类号： B65B63/028 , B65B1/26
摘要： The present invention relates to a packing method and an apparatus implementing said method in which a material is packed into a container by an air tapping process in which the air-pressure state of the space comprising a container and a space part connected with said container, which space being loaded with the material, is switched several times from a low air-pressure state to a high air-pressure state alternately, while keeping said low at-pressure state equal to or higher than the atmospheric pressure existing outside said space, thereby preventing the material from getting blown up by the inflow of the atmospheric air outside the container and packing a material into said container homogeneously.
摘要翻译：本发明涉及一种实现上述方法的包装方法和装置，其中通过空气攻丝过程将材料包装在容器中，其中包括容器的空间的空气压力状态和与所述容器连接的空间部分，装载材料的空间交替地从低空气压力状态切换到高空气压状态，同时保持所述低压力状态等于或高于存在于所述空间外部的大气压力，从而防止材料通过容器外的大气的流入而被粉碎，并将材料均匀地包装到所述容器中。

16. 发明公开

EP0900645A3 Method and apparatus for packing material 审中-公开
标题翻译：包装材料的方法和设备
公开(公告)号：EP0900645A3
公开(公告)日：1999-05-26
申请号：EP98114825.7
申请日：1998-08-06
申请人： Intermetallics Co., Ltd.
发明人： Nagata, Hiroshi c/o Intermetallics Co., Ltd. , Sagawa, Masato , Watanabe, Toshihiro
IPC分类号： B30B15/30 , B65B1/26 , B65B63/02 , B30B11/02
CPC分类号： B65B1/26 , B30B15/302
摘要： This invention relates to a method and apparatus for packing a material in which a material is packed through a feeding hopper into a container by means of air tapping, and then the material is separated into the portion packed in the container with a uniform density and the portion remaining in the feeding hopper. The effect of this invention is to facilitate the packing of the materials such as powder, staples, and feathery materials which are hard to weigh and pack into a small space, enabling such materials to be packed rapidly into a container with high and uniform density throughout the container with little fluctuation in packed quantity. In addition, when this invention is applied to production of powder compacts, the compacts packed by this invention are near-net-shape and the density is high and uniform as well as the weight of the product is kept constant by which the productivity is enhanced..
摘要翻译：本发明涉及一种用于包装材料的方法和设备，其中材料通过进料斗通过空气抽吸装填到容器中，然后材料以均匀的密度分成包装在容器中的部分，并且残留在进料斗中的部分。本发明的效果是便于粉末，钉书针和羽毛等材料的包装，这些材料难以称重并且包装成小空间，使得这些材料能够迅速地装入高密度且密度均匀的容器中包装数量波动小的容器。另外，在将本发明应用于粉末成型体的制造时，本发明中填充的成型体为近净形，密度高且均匀，并且产品的重量保持恒定，从而提高了生产率 ..

17. 发明公开

EP0900645A2 Method and apparatus for packing material 审中-公开
标题翻译：用于压实的材料的方法和装置
公开(公告)号：EP0900645A2
公开(公告)日：1999-03-10
申请号：EP98114825.7
申请日：1998-08-06
申请人： Intermetallics Co., Ltd.
发明人： Nagata, Hiroshi c/o Intermetallics Co., Ltd. , Sagawa, Masato , Watanabe, Toshihiro
IPC分类号： B30B15/30 , B65B1/26 , B65B63/02 , B30B11/02
CPC分类号： B65B1/26 , B30B15/302
摘要： This invention relates to a method and apparatus for packing a material in which a material is packed through a feeding hopper into a container by means of air tapping, and then the material is separated into the portion packed in the container with a uniform density and the portion remaining in the feeding hopper. The effect of this invention is to facilitate the packing of the materials such as powder, staples, and feathery materials which are hard to weigh and pack into a small space, enabling such materials to be packed rapidly into a container with high and uniform density throughout the container with little fluctuation in packed quantity. In addition, when this invention is applied to production of powder compacts, the compacts packed by this invention are near-net-shape and the density is high and uniform as well as the weight of the product is kept constant by which the productivity is enhanced..

18. 发明公开

EP0599222A1 Method and apparatus for producing a powder compact 失效
标题翻译： Verfahren und Vorrichtung zur Herstellung von einePresskörperaus Pulver。
公开(公告)号：EP0599222A1
公开(公告)日：1994-06-01
申请号：EP93118664.7
申请日：1993-11-19
申请人： INTERMETALLICS CO., LTD.
发明人： Sagawa, Masato, c/o Intermetallics Co., Ltd. , Nagata, Hiroshi, c/o Intermetallics Co., Ltd. , Itatani, Osamu, c/o Intermetallics Co., Ltd.
IPC分类号： B30B15/02 , B30B11/02
CPC分类号： B30B11/02 , B22F3/1233 , B30B11/008 , B30B15/024 , H01F41/0266
摘要： The present invention relates to a method and an apparatus for producing a powder compact in which a recess (3) formed by die (d) and a lower punch (p1) inserted into said die is loaded with rubber mold (m) provided with a cavity (m') shaped according to the desired configuration of the compact, and subsequently, a powder is packed in the cavity of the rubber mold, and an upper punch (p2) is placed on die (d) to press the rubber mold with powder in the space formed by the die, the lower punch and the upper punch, thereby producing a powder compact. Because of the construction in which the upper punch is not inserted into the die but contacted at its bottom with the top of the die thereby carrying out the die pressing, the positioning of the indexed table does not have to be so accurate as in the prior art. The time for positioning is therefore shortened and the productivity is enhanced.
摘要翻译：本发明涉及一种制造粉末压块的方法和装置，其中由模具（d）形成的凹部（3）和插入所述模具中的下冲头（p1）装载有橡胶模具（m）（m'），然后将粉末填充在橡胶模具的空腔中，并将上冲头（p2）放置在模具（d）上以将橡胶模具按压在由模具，下冲头和上冲头形成的空间中的粉末，从而产生粉末压块。由于上冲头未插入模具的结构，而是在其底部与模具的顶部接触，从而进行压模，因此分度台的定位不一定如前所述那样准确艺术。因此缩短定位时间，提高生产效率。

19. 发明公开

EP0528292A1 Coated parts with film having powder-skeleton structure, and method for forming the coating 失效
标题翻译： Beschichtete Bauteile mitpowdergerüststrukturiertem电影和Verfahren zur ihrer Herstellung。
公开(公告)号：EP0528292A1
公开(公告)日：1993-02-24
申请号：EP92113479.7
申请日：1992-08-07
申请人： INTERMETALLICS CO., LTD.
发明人： Sagawa, Masato , Watanabe, Hiroshi , Shirai, Hiroo
IPC分类号： C23C24/04
CPC分类号： C23C24/045
摘要： Powder-content of a powder-coating is enhanced. Powder material forms a skeleton structure (Figs. 18 - 31). Its clearances are filled with resin. The coating comprises a resin layer (Figs. 18, 19, 20, 22, 23, 24) which bonds the power-compacted layer to the parts (3, 33) or any underlying powder-compacted layer. The work pieces (3, 33), on which a resin film may be preliminarily formed, is subjected to vibration or stirring together with the powder material and means (7) for mediating the formation of the coating, which means is of substantially smaller size than said work pieces (3, 33) and greater size than said powder material, as well as with or without the resin, to vibration or stirring in a container (2).
摘要翻译：增加粉末涂料的粉末含量。粉末材料形成骨架结构（图18-31）。其间隙充满树脂。涂层包括将动力压实层结合到部分（3,33）或任何下面的粉末压实层的树脂层（图18,19,20,22,23,24）。可以预先形成有树脂膜的工件（3,33）与粉末材料一起振动或搅拌，并且用于介导涂层形成的装置（7），这意味着具有基本上更小的尺寸比所述工件（3,33）更大并且比所述粉末材料大，以及有或没有树脂，在容器（2）中振动或搅拌。

20. 发明授权

EP1788594B1 PRODUCTION METHOD FOR MAGNETIC-ANISOTROPY RARE-EARTH SINTERED MAGNET 有权
标题翻译： METHOD FOR磁性各向异性稀土类烧结磁体
公开(公告)号：EP1788594B1
公开(公告)日：2017-04-12
申请号：EP05765338.8
申请日：2005-06-30
申请人： INTERMETALLICS CO., LTD.
发明人： Sagawa, Masato , Nagata, Hiroshi , Itatani, Osamu
IPC分类号： H01F41/02 , B22F3/00 , B22F3/02 , B22F3/087 , C22C1/04 , C22C33/02 , H01F1/057
CPC分类号： H01F41/0246 , B22F3/1021 , B22F2998/10 , C22C1/0433 , C22C33/0278 , C22C38/005 , C22C38/06 , C22C38/10 , C22C38/16 , H01F1/0557 , H01F1/0577 , H01F41/0273 , B22F2201/10 , B22F9/08 , B22F3/004 , B22F2202/01 , B22F3/005 , B22F2202/05 , B22F9/04

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