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    SYSTEM FOR METAL ATOMISATION AND METHOD FOR ATOMISING METAL POWDER
    21.
    发明公开
    SYSTEM FOR METAL ATOMISATION AND METHOD FOR ATOMISING METAL POWDER 审中-公开
    用于金属原子的系统和用于金属粉末的原子的方法

    公开(公告)号：EP2819798A1

    公开(公告)日：2015-01-07

    申请号：EP13755139.6

    申请日：2013-02-22

    Applicant: Erasteel Kloster Aktiebolag

    Inventor： VIKNER, Peter ,  LÖNNBERG, Patrik

    IPC: B22F9/08 ,  B22D41/14

    CPC classification number: B22D41/22 ,  B22D41/14 ,  B22F9/082 ,  B22F2009/001 ,  B22F2009/0848 ,  B22F2009/0888 ,  B22F2201/10 ,  B22F2201/20 ,  B22F2998/10 ,  Y02P10/24

    Abstract: A system for metal powder atomisation comprising a refractory lined melting furnace (1) configured to melt metal into a liquid metal bath (6), in which furnace (1) a drain (3) is arranged for draining liquid metal from the bottom of the furnace. The drain (3) is configured to be closed by a stopping member. The system comprises an atomisation chamber (2) configured to receive and atomise liquid metal from the melting furnace (1). The system also comprises removal means controllable from the bottom region of the furnace (1) for removing the stopping member without interfering with the surface of the liquid metal bath (6). The removal means and the stopping member are configured such that the stopping member is removable independently of the temperature of the liquid metal bath (6) using the removal means.

    Abstract translation: 一种用于金属粉末雾化的系统，其包括耐火内衬熔化炉（1），所述耐火内衬熔化炉（1）被配置成将金属熔化成液态金属浴（6），炉（1）中设置排放管（3） 炉。 排水口（3）构造成由止动构件关闭。 该系统包括雾化室（2），雾化室（2）被配置为接收来自熔炉（1）的液态金属并使其雾化。 该系统还包括可从熔炉（1）的底部区域控制的去除装置，用于去除停止构件而不干扰液态金属浴（6）的表面。 去除装置和止动构件被构造成使得止动构件能够独立于使用去除装置的液态金属浴（6）的温度而被移除。

    METHOD FOR PRODUCING R-T-B SYSTEM SINTERED MAGNET
    25.
    发明公开
    METHOD FOR PRODUCING R-T-B SYSTEM SINTERED MAGNET 审中-公开
    VERFAHREN ZUR HERSTELLUNG EINES GESINTERTEN R-T-B-MAGNETEN

    公开(公告)号：EP2671958A1

    公开(公告)日：2013-12-11

    申请号：EP12742724.3

    申请日：2012-01-26

    Applicant: Hitachi Metals, Ltd.

    Inventor： MOCHIZUKI Mitsuaki ,  NAKAYAMA Shoji ,  SONODA Kazuhiro

    IPC: C22C33/02 ,  B02C19/06 ,  B02C19/18 ,  B02C21/00 ,  B22F1/00 ,  B22F3/00 ,  B22F3/02 ,  B22F9/04 ,  H01F1/053 ,  H01F1/08 ,  H01F41/02 ,  C22C38/00

    CPC classification number: H01F41/0246 ,  B22F2009/044 ,  B22F2998/10 ,  B22F2999/00 ,  C22C1/02 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C38/16 ,  H01F1/0573 ,  H01F1/0577 ,  H01F41/0273 ,  B22F9/023 ,  B22F2009/042 ,  B22F2201/20 ,  B22F2201/10

    Abstract: The present invention provides a producing method of R-T-B-based sintered magnets in which, the recovery chamber 40 includes inert gas introducing means 42, evacuating means 43, a carry-in port, a discharge port 40a, and a recovery container 60. The recovery step includes a carrying-in step of conveying a processing container 50 into the recovery chamber 40, a discharging step of discharging coarsely pulverized powder in the processing container 50 into the recovery chamber 40, a gas introducing step of introducing inert gas into the recovery chamber 40, and an alloy accommodating step of recovering the coarsely pulverized powderinto the recovery container 60. Addition of pulverization aid is carried out in the alloy accommodating step. A remaining amount of coarsely pulverized powder in the recovery chamber 40, an oxygen-containing amount of the R-T-B-based sintered magnet is reduced, and magnetic properties are enhanced.

    Abstract translation: 本发明提供一种RTB型烧结磁铁的制造方法，其中回收室40包括惰性气体导入装置42，排气装置43，进料口，排出口40a和回收容器60.回收 步骤包括将处理容器50输送到回收室40中的进入步骤，将处理容器50中的粗粉碎的粉末排放到回收室40中的排放步骤，将惰性气体引入回收室 以及将粗粉碎的粉末回收到回收容器60中的合金容纳步骤。在合金容纳步骤中进行粉碎助剂的添加。 在回收室40中剩余量的粉碎粉末，R-T-B系烧结磁体的含氧量降低，磁特性提高。

    Method and system for manufacturing sintered rare-earth magnet having magnetic anisotropy
    27.
    发明公开
    Method and system for manufacturing sintered rare-earth magnet having magnetic anisotropy 审中-公开
    Verfahren und System zur Herstellung eines gesinterten Seltenerdmagneten mit magnetischer Anisotropie

    公开(公告)号：EP2597660A2

    公开(公告)日：2013-05-29

    申请号：EP12195828.4

    申请日：2005-06-30

    Applicant: INTERMETALLICS CO., LTD.

    Inventor： Sagawa, Masato ,  Nagata, Hiroshi ,  Itatani, Osamu

    IPC: H01F41/02 ,  B22F3/00 ,  B22F3/02 ,  B22F3/087 ,  C22C1/04 ,  C22C33/02

    CPC classification number: 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

    Abstract: 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.

    Abstract translation: 为了提高稀土类磁铁的性能，使用粒径小的低氧化物粉末是有效的。 本发明的一个目的是提供一种制造具有磁各向异性的稀土类烧结磁体的方法，其中可以以低氧化状态安全地使用具有小晶粒尺寸的非常活泼的粉末。 另一个目标是提供能够有效地制造具有各种形状的产品的方法。 在称重装载部41和高密度装载部42中，将作为具有磁各向异性的稀土类烧结磁体的材料的细粉末装载到模具中，直到其密度达到预定水平。 然后，在磁性取向部43中，细粉末通过脉冲磁场取向。 随后，细粉末不被压缩，但是在烧结炉44中立即烧结。本发明的方法使得批量生产机器的操作简单，并且壳体相应地更小，从而可以消除危险 的粉末的氧化或燃烧，这对于使用大型压模机的常规方法而言是严重的问题。 此外，通过使用多腔模具来制造具有工业上重要的形状的烧结稀土类磁体，例如板状磁铁或拱形磁体磁铁，可以提高制造效率。

    System and method for reducing the bulk density of metal powder
    29.
    发明公开
    System and method for reducing the bulk density of metal powder 审中-公开
    System und Verfahren zur Reduktion derBündeldichtevon Metallpulver

    公开(公告)号：EP2578337A1

    公开(公告)日：2013-04-10

    申请号：EP12187236.0

    申请日：2012-10-04

    Applicant: The Boeing Company

    Inventor： Slattery, Kevin Thomas

    IPC: B22F1/00 ,  C23C24/04

    CPC classification number: B22F3/15 ,  B22F1/0085 ,  B22F3/003 ,  B22F3/1208 ,  B22F3/16 ,  B22F9/026 ,  B22F9/04 ,  B22F2003/153 ,  B22F2201/10 ,  B22F2201/20 ,  B22F2998/00 ,  B22F2998/10 ,  C23C24/04 ,  C23C24/06 ,  Y10T428/12014 ,  B22F1/0055 ,  B22F3/04

    Abstract: An apparatus for increasing the bulk density of metal powder may include a sealed chamber, a nozzle, and a target. The sealed chamber may include an inert environment. The nozzle may be coupled to an inert gas source and may be configured to introduce raw metal powder into a flow of the inert gas for discharge as a cold spray mixture of the raw metal powder and the inert gas into the chamber. The target may be housed within the sealed chamber and may be configured to receive an impact of the cold spray mixture. The nozzle and the target may be configured to flatten the raw metal particles into flattened metal particles in response to the cold spray mixture impacting the target.

    Abstract translation: 用于增加金属粉末的堆积密度的装置可以包括密封室，喷嘴和靶。 密封室可以包括惰性环境。 喷嘴可以联接到惰性气体源，并且可以被配置为将原料金属粉末引入用于排放的惰性气体流中，作为原料金属粉末和惰性气体的冷喷射混合物进入腔室。 靶可以容纳在密封室内并且可以被配置为接收冷喷雾混合物的冲击。 喷嘴和靶可以被配置为响应于影响目标的冷喷射混合物将原料金属颗粒平坦化成扁平的金属颗粒。

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