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1. 发明授权

US07344606B2 Permanent magnet manufacturing method and press apparatus 失效
标题翻译：永磁体制造方法和压制装置
公开(公告)号：US07344606B2
公开(公告)日：2008-03-18
申请号：US10489339
申请日：2002-10-18
申请人： Shuji Mino , Noboru Nakamoto
发明人： Shuji Mino , Noboru Nakamoto
IPC分类号： H01F1/04
CPC分类号： H01F41/0266 , H01F1/0573 , H01F41/0273
摘要： An anisotropic bonded magnet is produced at a low cost by avoiding various problems caused by remanence. Also, the unit weight and density of a compact is increased by filling even a cavity, having no easily feedable shape, with a magnet powder just as intended. An anisotropic bonded magnet is produced by feeding the cavity of a press machine with a magnetic powder (e.g., an HDDR powder) and compacting it. After the magnetic powder has been positioned outside of the cavity, an oscillating magnetic field (e.g., an alternating magnetic field) is created in a space including the cavity. The magnetic powder is transported into the cavity while being aligned parallel to the oscillating direction of the oscillating magnetic field. Thereafter, the magnetic powder is compressed within the cavity to make a compact for an anisotropic bonded magnet.
摘要翻译：通过避免由剩磁引起的各种问题，以低成本制造各向异性粘结磁体。此外，通过根据需要用磁铁粉末填充甚至没有容易进给的形状的空腔来增加压块的单位重量和密度。各向异性粘结磁体通过向压机的型腔供给磁性粉末（例如，HDDR粉末）并压实而制造。在磁粉被定位在空腔外部之后，在包括空腔的空间中产生振荡磁场（例如，交变磁场）。磁性粉末在平行于振荡磁场的振荡方向对准的同时被输送到空腔中。此后，磁性粉末在空腔内被压缩以使各向异性粘结磁体成形。

2. 发明授权

US07371290B2 Production method for permanent magnet and press device 有权
标题翻译：永磁和压机装置的生产方法
公开(公告)号：US07371290B2
公开(公告)日：2008-05-13
申请号：US10474546
申请日：2002-12-02
申请人： Shuji Mino , Noboru Nakamoto , Tsutomu Harada
发明人： Shuji Mino , Noboru Nakamoto , Tsutomu Harada
IPC分类号： H01F1/08
CPC分类号： B22F3/02 , B22F2999/00 , H01F41/0273 , B22F3/004 , B22F2202/05
摘要： To avoid various problems caused by remnant magnetization and produce an anisotropic bonded magnet at a reduced cost, a method for producing an anisotropic bonded magnet by feeding a magnetic powder (such as an HDDR powder) into the cavity of a press machine and compacting it is provided. A weak magnetic field is created as a static magnetic field in a space including the cavity by using a magnetic member that is steadily magnetized. The magnetic powder being transported into the cavity is aligned parallel to the direction of the weak magnetic field. Next, the magnetic powder is compressed in the cavity, thereby obtaining a compact.
摘要翻译：为了避免由残留磁化引起的各种问题，以低成本制造各向异性粘结磁体，通过将诸如HDDR粉末的磁性粉末（例如HDDR粉末）供给到压制机的空腔中并压实而制造各向异性粘结磁体的方法是提供。通过使用稳定磁化的磁性构件，在包括空腔的空间中产生弱磁场作为静磁场。被输送到空腔中的磁性粉末平行于弱磁场的方向排列。接下来，将磁性粉末在空腔中压缩，从而获得致密。

3. 发明授权

US06331214B1 Monolithically bonded construct of rare-earth magnet and metal material and method for bonding same 有权
标题翻译：稀土磁体和金属材料的单片结合构造及其结合方法
公开(公告)号：US06331214B1
公开(公告)日：2001-12-18
申请号：US09155094
申请日：1998-09-21
申请人： Masaki Koga , Nobutaka Suzuki , Hitoshi Saitoh , Kenshiro Oyamada , Koki Tokuhara , Shuji Mino , Naoyuki Ishigaki , Hitoshi Yamamoto
发明人： Masaki Koga , Nobutaka Suzuki , Hitoshi Saitoh , Kenshiro Oyamada , Koki Tokuhara , Shuji Mino , Naoyuki Ishigaki , Hitoshi Yamamoto
IPC分类号： H01F1053
CPC分类号： H02K1/278 , B23K20/021 , B23K20/023 , B23K20/16 , H01F1/055 , H01F1/057 , H01F41/026 , H02K1/02 , H02K1/2726 , H02K15/03 , Y10S428/928 , Y10T428/12076 , Y10T428/12465 , Y10T428/12806 , Y10T428/12931 , Y10T428/12944 , Y10T428/12951 , Y10T428/12979
摘要： Its basic means is a monolithically bonded construct prepared by monolithically bonding together a rare-earth magnet 2 and a an alloy material that is a high melting point metal or a high specific-tenacity material through the solid phase diffusion bonding by the hot isostatic pressing treatment, and a monolithically bonded construct with an interposal of a thin layer of the high melting point metal between a rare-earth magnet 2 and an alloy material 3, 4 that is a high specific-tenacity material. As a method for the bonding, there is used a hot isostatic pressing treatment method in which a rare-earth An magnet and a high melting-point metal are laminated together, thereby to prepare an object to be treated, then the object is put into a hermetic-type high pressure container having an inner wall portion equipped with a heater, then the object is uniformly pressurized in all directions by a synergistic effect caused by pressure and temperature, while the object is maintained for a certain period of time under a certain pressure and temperature condition in an atmosphere of an inert gas, thereby to monolithically bond the object. With this, it is possible to obtain a bonded construct in which a magnet can monolithically be bonded with another metal member with a high strength, without deteriorating magnetic characteristics, such that the rare-earth magnet's insufficiency in brittleness, rigidity, tenacity and the like is compensated.
摘要翻译：其基本手段是通过通过热等静压处理的固相扩散接合将稀土类磁体2与作为高熔点金属或高比强度材料的合金材料进行单片接合而制成的单片结合体，以及在稀土类磁体2和作为高强度材料的合金材料3,4之间具有高熔点金属薄层的介质的单片结合体。作为接合的方法，使用将稀土类磁体和高熔点金属层叠在一起的热等静压处理方法，由此制作被处理物，然后将物体放入具有装配有加热器的内壁部的封闭式高压容器，然后通过由压力和温度引起的协同效应使物体在所有方向上均匀地加压，同时在一定时间内将物体保持一定时间在惰性气体的气氛中的压力和温度条件，从而将物体整体结合。由此，可以获得其中磁体可以与另一个具有高强度的金属部件一体地结合而不会恶化磁特性的接合构造，使得稀土类磁体的脆性，刚性，强度等不足被补偿。

4. 发明授权

US5200001A Permanent magnet 失效
标题翻译：永久磁铁
公开(公告)号：US5200001A
公开(公告)日：1993-04-06
申请号：US619642
申请日：1990-11-29
申请人： Satoshi Hirosawa , Atsushi Hanaki , Hiroyuki Tomizawa , Shuji Mino
发明人： Satoshi Hirosawa , Atsushi Hanaki , Hiroyuki Tomizawa , Shuji Mino
IPC分类号： C22C45/02 , H01F1/057
CPC分类号： C22C45/02 , H01F1/057 , H01F1/0577
摘要： An anisotropic sintered permanent magnet consists essentially of 12 to 18 at % R, wherein R represents Pr, Nd, Dy, Tb and other rare earth element or elements contained as inevitable impurities provided that 0.8.ltoreq.(Pr+Nd+Dy+Tb)/R.ltoreq.1.0, 5 to 9.5 at % B, 2 to 5 at % Mo, 0.01 to 0.5 at % Cu, 0.1 to 3 at % Al, and balance being Fe. B(x) and Mo(y) are (x-4.5).ltoreq.y.ltoreq.(x-3.0), and part of Fe may be replaced by Co to be 3-7 at % Co. Up to 90 at % of Mo may be replaced by V. The magnet is characterized by main tetragonal R.sub.2 (Fe, Mo).sub.14 B or R.sub.2 (Fe, Co, Mo).sub.14 B phase and boundary phase of (Fe, Mo)-B, or (Fe, Co, Mo)-B and R.sub.m (Fe, Co, Mo).sub.n where m/n=1/2 to 3/1. B-rich phase Nd.sub.1+.epsilon. Fe.sub.4 B.sub.4 disappears. Dy and/or Tb linearly increase iHc. High coercivity and maximum energy product are obtained: iHc.gtoreq.15 kOe (or 21 kOe) and (BH)max.gtoreq.20 MGOe (or 28 MGOe) with high corrosion resistance and high pulverizability of alloy.

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