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1. 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

2. 发明授权

EP0646937B1 Method for producing a permanent magnet and an apparatus for producing a green compact 失效
标题翻译：一种用于制造用于制造生坯永磁体和装置的方法
公开(公告)号：EP0646937B1
公开(公告)日：1997-09-03
申请号：EP94116105.1
申请日：1991-11-28
申请人： INTERMETALLICS CO., LTD.
发明人： Sagawa, Masato , Nagata, Hiroshi, 303 Raygence Ooyagi , Shirai, Hiroo, 303 Mountain Village
IPC分类号： H01F41/02 , H01F1/053
CPC分类号： B22F3/225 , B22F3/003 , B22F3/004 , B22F3/02 , B22F3/1233 , B22F3/22 , B22F2003/026 , B22F2998/00 , B22F2999/00 , B29C43/34 , B29C43/361 , B29C2043/046 , B29C2043/3494 , B29C2043/3652 , B29C2043/3689 , B30B11/008 , B30B11/02 , B30B11/027 , B30B15/024 , B30B15/302 , H01F41/0266 , B22F3/1291 , B22F2202/01 , B22F2202/05

3. 发明公开

EP1266746A3 Method of producing powder compacts and foil or film-like mold members for use in the method 审中-公开
标题翻译：一种用于生产粉末压块和片状成型件用于在该方法使用过程
公开(公告)号：EP1266746A3
公开(公告)日：2003-05-02
申请号：EP02012406.1
申请日：2002-06-07
申请人： Intermetallics Co., Ltd.
发明人： Sagawa, Masato , Watanabe, Toshihiro
IPC分类号： B30B11/00 , B30B15/02
CPC分类号： B30B15/024 , B30B11/001
摘要： A powder compact is produced by disposing a foil or film-like mold member (T) packed with a powder (P) in a cavity of a rubber mold (M) which is loaded in a die. The rubber mold (M), the foil or film-like type mold member (T) and the powder (P) packed in the foil or film-like mold member are compressed by a punch to obtain a powder compact. The powder compact with the foil or film-like mold member being attached thereto is removed, by pressure, from the rubber mold (M). Since the powder to be compressed into a compact is not packed directly in the cavity of the rubber mold, but is packed in the mold member, no part of the rubber mold is caught in the space formed by the powder that is in contact with the rubber mold. Accordingly, cracks and chips in the powder compact can be prevented even when the rubber mold is restored to its initial shape and many shape and size variations of the powder compact can be realized.
摘要翻译：的粉末成形体是通过其在所加载的橡胶模具（M）的所有的空腔填充有粉末（P）的箔或薄膜状的模具构件（T）配置产生的。橡胶模具（M），装在所述箔或膜状拍摄模具构件的箔或薄膜型模具状构件（T）和粉体（P）是由冲头压缩，以得到粉末压块。与箔片或薄膜状的拍摄模构件粉末压块连接在其上被移除时，通过压力，从橡胶模具（M）。由于粉末被压缩成一个紧凑的未在橡胶模具的空腔直接填充，而是装在模具部件，没有橡胶模具的一部分被捕获在由粉末形成的空间没有与所述接触橡胶模具。因此，裂纹和碎屑在粉末压块可以防止即使当橡胶模具被恢复到其初始形状和粉末压块的许多形状和大小的变化得以实现。

4. 发明公开

EP0988959A3 Powder compaction method 审中-公开
标题翻译：一种用于压实粉末的方法
公开(公告)号：EP0988959A3
公开(公告)日：2002-03-27
申请号：EP99118060.5
申请日：1999-09-23
申请人： Intermetallics Co., Ltd.
发明人： Sagawa, Masato , Watanabe, Toshihiro , Nagata, Hiroshi
IPC分类号： B29C67/02 , B29C39/24
CPC分类号： B30B11/00 , B30B15/302
摘要： A powder compaction method in which a powder p is filled by air tapping or other suitable method into a mold 1, then while the mold 1 being filled with the powder, the powder particles are bound with each other without application of force from outside the mold to form a compact C, and then the compact C is taken out from the mold 1. This method produces a variety of shapes of the compact far greater than in conventional methods, and net shape manufacturing of products with complex shapes is made possible by this method. Because this method uses far less binder compared to MIM and PIM that are expected as methods for producing products with complicated shapes, the time needed for elimination of the binder is much shorter than in MIM and PIM.

5. 发明公开

EP0761423A2 Powder packing method 失效
标题翻译：一种用于压实粉末的方法
公开(公告)号：EP0761423A2
公开(公告)日：1997-03-12
申请号：EP96114412.8
申请日：1996-09-09
申请人： Intermetallics Co., Ltd.
发明人： Sagawa, Masato , Nagata, Hiroshi , Watanabe, Toshihiro , Miyoshi, Terumasa , Kasahara, Mizuho
IPC分类号： B30B11/00 , B30B15/30
CPC分类号： B30B15/024 , B22F3/004 , B30B11/027 , B30B15/302
摘要： The present invention relates to a packing method in which a material (p) is fed into a space comprising an opening (4c) for feeding the material and a space (4d) to be packed with said material, and said space is subjected to air tapping, that is, switching of air-pressure from a low air-pressure state to a high air-pressure state alternately, thereby packing the material into the space (4d) at a high packing-density.
The use of air tapping for packing a material into a space makes the packing-density of the material uniform.

6. 发明公开

EP0739018A2 Method for producing a magnetic powder compact and rubber mold used in the method 失效
标题翻译：在Kautschuk zurDurchführungdes Verfahrens的HerstellungsverfahrenfürMagnetpuder-Kompakt und Form
公开(公告)号：EP0739018A2
公开(公告)日：1996-10-23
申请号：EP96105450.9
申请日：1996-04-04
申请人： Intermetallics Co., Ltd.
发明人： Sagawa, Masato , Nagata, Hiroshi , Watanabe, Toshihiro
IPC分类号： H01F41/02
CPC分类号： B22F3/1233 , B22F3/04 , B22F3/087 , B22F2999/00 , B30B15/024 , H01F41/0266 , Y10S425/033 , Y10S425/044 , B22F2202/05
摘要： The present invention relates to a method in which a magnetic powder is packed into a cavity (c) of a rubber mold (m) comprising a rubber material at least a part of which is a mixture of rubber and magnetic powder, and then the rubber mold filled with the magnetic powder are subjected to a magnetic field and a pressure with punches (2a , 2b), thereby compressing the powder to form powder compact.
This makes the distribution of magnetic field in the cavity of the rubber mold more homogeneous, and therefore, the distortion, cracking and chipping caused by inhomogenity of the distribution of the magnetic field are prevented, and the resultant powder compact becomes more near-net-shaped i.e., closer to the end product.
摘要翻译：本发明涉及一种方法，其中将磁性粉末填充到橡胶模具（m）的空腔（c）中，所述橡胶模具（m）包括至少一部分橡胶和磁性粉末的混合物的橡胶材料，然后橡胶用粉末（2a，2b）对填充有磁性粉末的模具进行磁场和压力，由此压缩粉末以形成粉末压块。这使得橡胶模具的空腔中的磁场分布更均匀，因此防止了由于磁场分布的不均匀性引起的变形，破裂和碎裂，并且所得的粉末压实体变得更接近 - 形状即更靠近最终产品。

7. 发明公开

EP0488334A3 Method and apparatus for producing a permanent magnet by forming a green and sintered compact 失效
标题翻译：通过形成绿色和烧结的紧凑型生产永磁体的方法和装置
公开(公告)号：EP0488334A3
公开(公告)日：1993-03-31
申请号：EP91120459.2
申请日：1991-11-28
申请人： INTERMETALLICS CO., LTD.
发明人： Sagawa, Masato , Nagata, Hiroshi , Shirai, Hiroo
IPC分类号： H01F41/02 , H01F1/08 , B22F3/02 , B30B11/00
CPC分类号： B22F3/225 , B22F3/003 , B22F3/004 , B22F3/02 , B22F3/1233 , B22F3/22 , B22F2003/026 , B22F2998/00 , B22F2999/00 , B29C43/34 , B29C43/361 , B29C2043/046 , B29C2043/3494 , B29C2043/3652 , B29C2043/3689 , B30B11/008 , B30B11/02 , B30B11/027 , B30B15/024 , B30B15/302 , H01F41/0266 , B22F3/1291 , B22F2202/01 , B22F2202/05
摘要： In the die-pressing method of the magnet powder and fine powder, the powder is filled at a high density in a rubber mold (10), is occasionally preliminarily magnetized (4a) in the rubber mold and is then compacted under magnetic field or without magnetic field. Cracking of the magnet green compact is prevented. A sintered compact having density of 90% or more can be produced using the fine powder.

8. 发明公开

EP2597659A3 Method and system for manufacturing sintered rare-earth magnet having magnetic anisotropy 审中-公开
公开(公告)号：EP2597659A3
公开(公告)日：2018-03-21
申请号：EP12195806.0
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
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
摘要： To improve the performance of a rare-earth magnet, it is effective to use a low-oxidized powder having a small grain size. One objective of the present invention is to provide a method for manufacturing a sintered rare-earth magnet having a magnetic anisotropy, in which a very active powder having a small grain size can be safely used in a low-oxidized state. Another objective is to provide a method capable of efficiently manufacturing products having various shapes. In a weighing and loading section 41 and a high-density loading section 42, a fine powder as a material of the sintered rare-earth magnet having a magnetic anisotropy is loaded into a mold until its density reaches a predetermined level. Then, in a magnetic orientation section 43, the fine powder is oriented by a pulsed magnetic field. Subsequently, the fine powder is not compressed but immediately sintered in a sintering furnace 44. The present method enables the mass-producing machine to be simple in its operation and its housing to be accordingly smaller, so that it will be possible to eliminate the danger of oxidization or burning of the powder, which has been a serious problem for a conventional method that uses a large-scale die-pressing machine. Furthermore, the manufacturing efficiency can be improved by using a multi-cavity mold for manufacturing a sintered rare-earth magnet having an industrially important shape, such as a plate magnet or an arched plate magnet.

9. 发明公开

EP3091545A1 MOLD FOR MAKING NDFEB SINTERED MAGNET 审中-公开
标题翻译： FORM ZUR HERSTELLUNG EINES NDFEB-SINTERMAGNETEN
公开(公告)号：EP3091545A1
公开(公告)日：2016-11-09
申请号：EP16172668.2
申请日：2008-08-20
申请人： INTERMETALLICS CO., LTD.
发明人： Sagawa, Masato
IPC分类号： H01F41/02 , B22F3/10 , H01F1/053 , H01F1/08
CPC分类号： H01F41/0273 , B22F3/087 , B22F2998/00 , B22F2998/10 , B22F2999/00 , C22C2202/02 , H01F1/0577 , H01F41/0266 , C22C33/02 , B22F3/004 , B22F3/10 , B22F3/02 , B22F2202/05 , B22F3/1216
摘要： The objective of the present invention is to provide a mold for making a NdFeB sintered magnet by processes of: filling an inside of the mold with a powder; orienting the powder inside the mold with a magnetic field; charging the whole mold into a sintering furnace; and heating the powder in the mold without applying any mechanical pressure to the powder to obtain a sintered compact of the NdFeB sintered magnet, wherein: at least a part of the mold is made of a carbon material, said part causing friction between the carbon material and the sintered component.
摘要翻译：本发明的目的是提供一种通过以下步骤制造NdFeB烧结磁体的模具：用粉末填充模具内部; 用磁场将粉末定位在模具内; 将整个模具装入烧结炉; 并且在所述模具中加热所述粉末而不对所述粉末施加任何机械压力，以获得所述NdFeB烧结磁体的烧结体，其中：所述模具的至少一部分由碳材料制成，所述部分引起所述碳材料之间的摩擦和烧结部件。

10. 发明公开

EP1083125A3 Method and apparatus for packing material 审中-公开
标题翻译：用于压实材料的方法和装置
公开(公告)号：EP1083125A3
公开(公告)日：2004-03-17
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 , B30B15/30 , B30B11/00
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.

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