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    Silicon purification method and silicon purification device
    5.
    发明授权
    Silicon purification method and silicon purification device 有权
    硅纯化方法和硅精制装置

    公开(公告)号：US08778143B2

    公开(公告)日：2014-07-15

    申请号：US13395895

    申请日：2010-09-17

    申请人： Yasuo Ookubo ,  Hiroshi Nagata

    发明人： Yasuo Ookubo ,  Hiroshi Nagata

    IPC分类号： H05F3/00

    CPC分类号： C01B33/037 ,  H05H1/44

    摘要： The silicon purification method uses a silicon purification device including at least a crucible for loading a silicon metal and a plasma torch, and purifies the silicon metal by injecting a plasma gas from the plasma torch toward a melt surface of the silicon metal loaded in the crucible in a state where an angle formed by the melt surface and the plasma gas is set in the range of 20° to 80°.

    摘要翻译： 硅纯化方法使用至少包括用于加载硅金属和等离子体焰炬的坩埚的硅纯化装置，并且通过从等离子体焰炬注入等离子体气体来朝向装载在坩埚中的硅金属的熔融表面来净化硅金属 在由熔融表面和等离子体气体形成的角度设定在20°至80°的范围内的状态。

    Coating method and apparatus, a permanent magnet, and manufacturing method thereof
    6.
    发明授权
    Coating method and apparatus, a permanent magnet, and manufacturing method thereof 有权
    涂布方法和装置，永久磁铁及其制造方法

    公开(公告)号：US08771422B2

    公开(公告)日：2014-07-08

    申请号：US13163881

    申请日：2011-06-20

    申请人： Hiroshi Nagata ,  Yoshinori Shingaki

    发明人： Hiroshi Nagata ,  Yoshinori Shingaki

    IPC分类号： C23C16/00 ,  B05D5/12

    CPC分类号： C23C14/16 ,  C23C14/243 ,  C23C14/541 ,  H01F1/0571 ,  H01F10/126 ,  H01F41/0293 ,  H01F41/20

    摘要： The object of the present invention is to improve the productivity of a permanent magnet and to manufacture it at a low cost by effectively coating Dy and Tb on a surface of the magnet of Fe—B-rare earth elements having a predetermined configuration. The permanent magnet of the present invention is manufactured by a coating step for coating Dy on the surface of the magnet of Fe—B-rare earth elements having a predetermined configuration and a diffusing step for diffusing Dy coated on the surface of the magnet into crystal grain boundary phases of the magnet with being heat treated at a predetermined temperature. In this case, the coating step comprises a first step for heating a process chamber used for carrying out the coating step and generating metallic vapor atmosphere within the process chamber by vaporizing vaporizable metallic material previously arranged within the process chamber, and a second step for introducing into the process chamber the magnet held at a temperature lower than that within the process chamber and then selectively depositing the vaporizable metallic material on a surface of the magnet by an effect of temperature difference between the temperature within the process chamber and that of the magnet by the magnet reaches a predetermined temperature.

    摘要翻译： 本发明的目的是通过在具有预定构造的Fe-B-稀土元素的磁体的表面上有效地涂覆Dy和Tb来提高永磁体的生产率并以低成本制造。 本发明的永磁体通过涂布步骤制造，该涂覆步骤用于在具有预定结构的Fe-B-稀土元素的磁体的表面上涂覆Dy，并将用于将涂覆在磁体表面上的Dy扩散到晶体的扩散步骤 在预定温度下进行热处理的磁体的晶界相。 在这种情况下，涂覆步骤包括：第一步骤，用于加热用于进行涂覆步骤的处理室，并通过蒸发预先设置在处理室内的可蒸发金属材料，在处理室内产生金属蒸汽气氛;以及第二步骤，用于引入 进入处理室，磁体保持在低于处理室​​内的温度，然后通过处理室内的温度与磁体的温度之间的温度差的选择性地将可蒸发的金属材料沉积在磁体的表面上 磁体达到预定温度。

    Vacuum vapor processing apparatus
    7.
    发明授权
    Vacuum vapor processing apparatus 有权
    真空蒸气处理装置

    公开(公告)号：US08375891B2

    公开(公告)日：2013-02-19

    申请号：US12440635

    申请日：2007-09-10

    申请人： Hiroshi Nagata ,  Kyuzo Nakamura ,  Takeo Katou ,  Atsushi Nakatsuka ,  Ichirou Mukae ,  Masami Itou ,  Ryou Yoshiizumi ,  Yoshinori Shingaki

    发明人： Hiroshi Nagata ,  Kyuzo Nakamura ,  Takeo Katou ,  Atsushi Nakatsuka ,  Ichirou Mukae ,  Masami Itou ,  Ryou Yoshiizumi ,  Yoshinori Shingaki

    IPC分类号： C23C16/448 ,  C23C16/455 ,  C23C16/458 ,  C23C16/46 ,  C23F1/00 ,  H01L21/306 ,  C23C16/06 ,  C23C16/22

    CPC分类号： C23C14/24 ,  H01F41/0293

    摘要： There is provided a vacuum evaporating apparatus which is suitable for performing a process in which a metal vapor atmosphere is formed in a processing chamber, the metal atoms in this metal vapor atmosphere are caused to be adhered to the surface of an object to be processed, and the metal atoms adhered to the surface of the object to be processed are diffused into grain boundary phases thereof. The apparatus comprises: a processing furnace (11); at least one processing box (4) disposed inside the processing furnace; and a heating means (2) provided inside the processing furnace so as to enclose the processing box. An evacuating means is provided which, after housing the processing box inside the processing furnace in a state in which the object to be processed (S) and the metal evaporating material (V) are disposed in the processing box, reduces the processing furnace and the processing box to a predetermined pressure and keep them at that pressure. The heating means is operated in the reduced pressure to evaporate the metal evaporating material while increasing the object to be processed to a predetermined temperature. The evaporated metal atoms are supplied to the surface of the object to be processed.

    摘要翻译： 提供了一种真空蒸发装置，其适于进行在处理室中形成金属蒸汽气氛的过程，使金属蒸气气氛中的金属原子粘附到待处理物体的表面， 并且附着在待处理物体表面的金属原子扩散到其晶界相。 该装置包括：加工炉（11）; 设置在处理炉内的至少一个处理箱（4） 以及设置在处理炉内部以包围处理盒的加热装置（2）。 本发明提供一种排气装置，其特征在于，处理炉内处理箱内处理箱体（S）和金属蒸发材料（V）的状态被设置在处理箱内时，将加工炉和 处理箱到预定的压力并保持在该压力下。 加热装置在减压下操作以蒸发金属蒸发材料，同时将待处理物体增加到预定温度。 蒸发的金属原子被供应到待处理物体的表面。

    Permanent magnet and method of manufacturing same
    8.
    发明授权
    Permanent magnet and method of manufacturing same 有权
    永磁体及其制造方法

    公开(公告)号：US08262808B2

    公开(公告)日：2012-09-11

    申请号：US12519878

    申请日：2007-12-19

    申请人： Hiroshi Nagata ,  Kyuzo Nakamura ,  Takeo Katou ,  Atsushi Nakatsuka ,  Ichirou Mukae ,  Masami Itou ,  Ryou Yoshiizumi ,  Yoshinori Shingaki

    发明人： Hiroshi Nagata ,  Kyuzo Nakamura ,  Takeo Katou ,  Atsushi Nakatsuka ,  Ichirou Mukae ,  Masami Itou ,  Ryou Yoshiizumi ,  Yoshinori Shingaki

    IPC分类号： H01F1/057

    CPC分类号： C22C33/0242 ,  B22F2998/00 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2202/02 ,  H01F41/0273 ,  H01F41/0293 ,  C22C33/0278 ,  B22F3/12 ,  B22F2201/40 ,  B22F2201/10 ,  B22F2201/20

    摘要： There is provided a method of manufacturing a permanent magnet which has an extremely high coercive force and high magnetic properties is manufactured at high productivity. There are executed: a first step of causing at least one of Dy and Tb to adhere to at least part of a surface of iron-boron-rare-earth based sintered magnet; and a second step of diffusing, through heat-treatment at a predetermined temperature, at least one of Dy and Tb adhered to the surface of the sintered magnet into grain boundary phase of the sintered magnet. As the sintered magnet, there is used one which is manufactured by: mixing each powder of principal phase alloy (constituted primarily by R2T14B phase, where R is at least one rare earth element primarily including Nd and where T is a transition metal primarily including Fe), and a liquid phase alloy (having a higher content of R than R2T14B phase and primarily constituted by R-rich phase) in a predetermined mixing ratio; press-forming in magnetic field a mixed powder thus obtained; and sintering a press-formed body in vacuum or inert gas atmosphere.

    摘要翻译： 提供了一种制造具有极高矫顽力的永磁体的方法，并以高生产率制造高磁性。 执行：使Dy和Tb中的至少一种附着在铁 - 硼 - 稀土类烧结磁体的表面的至少一部分上的第一步骤; 以及第二步骤，通过在预定温度下进行热处理，将附着在烧结磁体表面上的Dy和Tb中的至少一种扩散到烧结磁体的晶界相。 作为烧结磁体，使用以下制造方法：将主相合金粉末（主要由R2T14B相构成，其中R为主要包含Nd的至少一种稀土元素，其中T为主要包含Fe的过渡金属） ）和预定混合比的液相合金（R含量比R2T14B相高，主要由富R相构成）; 在磁场中成形如此得到的混合粉末; 并在真空或惰性气体气氛中烧结压制成形体。

    Permanent magnet and method of manufacturing same
    9.
    发明授权
    Permanent magnet and method of manufacturing same 有权
    永磁体及其制造方法

    公开(公告)号：US08157926B2

    公开(公告)日：2012-04-17

    申请号：US12519891

    申请日：2007-12-19

    申请人： Hiroshi Nagata ,  Yoshinori Shingaki

    发明人： Hiroshi Nagata ,  Yoshinori Shingaki

    IPC分类号： H01F1/057

    CPC分类号： C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C38/12 ,  C22C38/16 ,  H01F1/0577 ,  H01F41/0293

    摘要： There is provided a method of manufacturing a permanent magnet in which Dy and/or Tb adhered to the surface of a sintered magnet containing a lubricant can be efficiently diffused and in which the permanent magnet having high magnetic properties can be manufactured at good productivity. The permanent magnet is manufactured by executing a first step of adhering at least one of Dy and Tb to at least a part of a surface of a sintered magnet made by sintering iron-boron-rare earth based alloy raw meal powder containing a lubricant; and a second step of heat-treating the sintered magnet at a predetermined temperature to thereby disperse at least one of Dy and Tb adhered to the surface of the sintered magnet into grain boundary phase of the sintered magnet. At this time, as the sintered magnet, there is used one manufactured in an average grain size within a range of 4 μm˜8 μm.

    摘要翻译： 提供了一种制造永磁体的方法，其中可以有效地扩散粘附到含有润滑剂的烧结磁体的表面上的Dy和/或Tb，并且可以以高生产率制造具有高磁性的永磁体。 通过执行将Dy和Tb中的至少一种粘附到通过烧结含有润滑剂的含铁 - 硼 - 稀土类合金生粉粉末制成的烧结磁体的表面的至少一部分上的第一步骤来制造永磁体; 以及在预定温度下对烧结磁体进行热处理以将附着在烧结磁体表面上的Dy和Tb中的至少一种分散在烧结磁体的晶界相中的第二步骤。 此时，作为烧结磁体，使用以4μm〜8μm的范围内的平均粒径制造的烧结磁体。

    Permanent magnet and method of manufacturing same
    10.
    发明授权
    Permanent magnet and method of manufacturing same 有权
    永磁体及其制造方法

    公开(公告)号：US08128760B2

    公开(公告)日：2012-03-06

    申请号：US12519884

    申请日：2007-12-19

    申请人： Hiroshi Nagata ,  Kyuzo Nakamura ,  Takeo Katou ,  Atsushi Nakatsuka ,  Ichirou Mukae ,  Masami Itou ,  Ryou Yoshiizumi ,  Yoshinori Shingaki

    发明人： Hiroshi Nagata ,  Kyuzo Nakamura ,  Takeo Katou ,  Atsushi Nakatsuka ,  Ichirou Mukae ,  Masami Itou ,  Ryou Yoshiizumi ,  Yoshinori Shingaki

    IPC分类号： H01F1/057

    CPC分类号： H01F41/026 ,  H01F1/0577 ,  H01F7/02 ,  H01F41/0293

    摘要： By eliminating the necessity of a prior step for cleaning a sintered magnet before adhering Dy and/or Tb to the surface of the sintered magnet S, the productivity of a permanent magnet having diffused Dy and/or Tb into grain boundary phase is improved. Iron-boron-rare earth based sintered magnet (S) disposed in a processing chamber (20) is heated to a predetermined temperature. An evaporating material (V) which is made of a hydride containing at least one of Dy and Tb is disposed in the same or in another processing chamber and is evaporated to cause the evaporated evaporating material to the surface of the sintered magnet. Metal atoms of Dy and/or Tb are diffused into grain boundary phase of the sintered magnet.

    摘要翻译： 通过消除在将Dy和/或Tb粘附到烧结磁体S的表面之前清洁烧结磁体的先前步骤的必要性，具有扩散的Dy和/或Tb的永磁体的生产率提高到晶界相。 设置在处理室（20）中的铁 - 硼 - 稀土类烧结磁体（S）被加热到预定温度。 将由含有Dy和Tb中的至少一种的氢化物制成的蒸发材料（V）设置在同一处理室中或在另一个处理室中，蒸发而使蒸发的蒸发材料到烧结磁体的表面。 Dy和/或Tb的金属原子扩散到烧结磁体的晶界相。