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    Surface treating apparatus
    4.
    发明授权
    Surface treating apparatus 有权
    表面处理装置

    公开(公告)号：US07270714B2

    公开(公告)日：2007-09-18

    申请号：US10615381

    申请日：2003-07-09

    申请人： Takeshi Nishiuchi ,  Yoshimi Tochishita ,  Fumiaki Kikui ,  Mitsuo Kizawa

    发明人： Takeshi Nishiuchi ,  Yoshimi Tochishita ,  Fumiaki Kikui ,  Mitsuo Kizawa

    IPC分类号： C23C14/24

    CPC分类号： C23C14/223 ,  C23C14/16 ,  C23C14/246 ,  C23C14/505 ,  H01F41/026 ,  Y10S428/928 ,  Y10S428/938 ,  Y10T428/12063 ,  Y10T428/12465 ,  Y10T428/12778

    摘要： A surface treating process according to the present invention, a vapor deposited film is formed from an easily oxidizable vapor-depositing material on the surface of a work by evaporating the vapor-depositing material in a state in which the vapor deposition controlling gas has been supplied to at least zones near a melting/evaporating source and the work within a treating chamber. Thus, the vapor deposited film can be formed stably on the surface of a desired work without requirement of a long time for providing a high degree of vacuum and without use of a special apparatus. In addition, the use of the surface treating process ensures that a corrosion resistance can be provided to a rare earth metal-based permanent magnet extremely liable to be oxidized, without degradation of a high magnetic characteristic of the magnet. A surface treating apparatus according to the present invention includes a melting/evaporating source for melting and evaporating a wire-shaped vapor-depositing material containing a vapor deposition controlling gas, and a member for retaining a work on which the vapor-depositing material is deposited. The melting/evaporating source and the work retaining member are disposed in a treating chamber of the surface treating chamber. The apparatus further includes a vapor-depositing material supply means for supplying the wire-shaped vapor-depositing material containing the vapor deposition controlling gas to the melting-evaporating source.

    摘要翻译： 根据本发明的表面处理方法，通过在已经供应气相沉积控制气体的状态下蒸发气相沉积材料，通过易于氧化的气相沉积材料在工件表面上形成气相沉积膜 至少在熔化/蒸发源附近的区域和处理室内的工作。 因此，可以在期望的工件的表面上稳定地形成蒸镀膜，而不需要长时间提供高真空度并且不需要特殊的装置。 此外，通过使用表面处理工序，能够确保对极易于氧化的稀土类金属系永磁体提供耐腐蚀性，而不会降低磁铁的高磁特性。 根据本发明的表面处理装置包括用于熔化和蒸发含有气相沉积控制气体的线状气相沉积材料的熔化/蒸发源，以及用于保持沉积有沉积材料的工件的构件 。 熔化/蒸发源和工件保持构件设置在表面处理室的处理室中。 该装置还包括用于将含有蒸镀控制气体的线状气相沉积材料供给到熔化蒸发源的气相沉积材料供给装置。

    Rare earth metal-based permanent magnet having corrosion-resistant film and method for producing the same
    5.
    发明授权
    Rare earth metal-based permanent magnet having corrosion-resistant film and method for producing the same 有权

    公开(公告)号：US06884513B2

    公开(公告)日：2005-04-26

    申请号：US09924476

    申请日：2001-08-09

    申请人： Atsushi Kikugawa ,  Fumiaki Kikui

    发明人： Atsushi Kikugawa ,  Fumiaki Kikui

    IPC分类号： H01F41/02 ,  B22B15/04 ,  H01F1/053

    CPC分类号： H01F41/026 ,  Y10S428/90 ,  Y10T428/12465 ,  Y10T428/31678

    摘要： The chemical conversion film containing, at least as the constituent components thereof, (a) at least one of the metals selected from molybdenum, zirconium, vanadium, and tungsten; (b) a rare earth metal constituting the magnet; and (c) oxygen, which is formed on the surface of a rare earth metal-based permanent magnet according to the present invention, contains a composite metal oxide provided on the surface of the R-rich phase having a lower oxidation-reduction potential through a preferential reaction of the metallic ions that are present in the form of complex ions or oxide ions, such as of molybdenum, contained in the treatment solution, with the rare earth metals that elute from the magnet. Thus formed composite metal oxide reduces the difference in corrosion potential as to realize a uniform surface potential, and effectively suppresses the corrosion based on potential difference. Furthermore, the chemical conversion film thus formed exhibits excellent corrosion resistance even if it is provided as a thin film. The production method thereof can be implemented at low cost and by a simple process comprising treating the surface of the magnet by using a treatment solution containing a molybdate and the like.

    Process for producing rare earth metal-based permanent magnet having corrosion-resistant film
    6.
    发明授权
    Process for producing rare earth metal-based permanent magnet having corrosion-resistant film 有权
    具有耐腐蚀膜的稀土金属类永磁体的制造方法

    公开(公告)号：US06376089B1

    公开(公告)日：2002-04-23

    申请号：US09649593

    申请日：2000-08-29

    申请人： Takeshi Nishiuchi ,  Atsushi Kikugawa ,  Fumiaki Kikui

    发明人： Takeshi Nishiuchi ,  Atsushi Kikugawa ,  Fumiaki Kikui

    IPC分类号： B32B1508

    CPC分类号： H01F1/059 ,  H01F1/057 ,  H01F1/344 ,  H01F41/026 ,  Y10S428/90 ,  Y10S428/926 ,  Y10S428/928 ,  Y10T428/31663 ,  Y10T428/31678

    摘要： The present invention provides a process for producing a rare earth metal-based permanent magnet having, on its surface, a corrosion-resistant film containing inorganic fine particles having a specific average particle size and dispersed in a film phase formed from a silicon compound. In a heat treatment for forming a film by a hydrolyzing reaction and a thermally decomposing reaction of the silicon compound, followed by a polymerizing reaction, a stress is generated within the film by the shrinkage of the film. In the corrosion-resistant film formed by the producing process according to the present invention, however, such stress is dispersed by the presence of the inorganic fine particles and hence, the generation of physical defects such as cracks is inhibited. In addition, voids between the adjacent inorganic fine particles are filled with the film phase formed from the silicon compound and hence, the formed film is dense. Further, no alkali ions are contained in the film and hence, the film itself is excellent in corrosion resistance. Yet further, the film has an excellent close adhesion to the magnet achieved by an excellent reactivity with the surface of the magnet.

    摘要翻译： 本发明提供一种稀土金属类永久磁铁的制造方法，其表面具有含有特定平均粒径的无机微粒并分散在由硅化合物形成的膜相中的耐腐蚀性膜。 在通过水解反应形成膜和硅化合物的热分解反应的热处理中，随后进行聚合反应，通过膜的收缩在膜内产生应力。 然而，在通过本发明的制造方法形成的耐腐蚀膜中，通过存在无机细颗粒而使这种应力分散，因此抑制诸如裂纹的物理缺陷的产生。 此外，相邻的无机细粒之间的空隙填充有由硅化合物形成的膜相，因此形成的膜是致密的。 此外，膜中不含有碱离子，因此膜本身的耐腐蚀性优异。 此外，该膜通过与磁体表面的优异反应性而获得与磁体的极好的紧密粘合性。

    Process for surface treatment of hollow work having hole communicating with outside
    7.
    发明授权
    Process for surface treatment of hollow work having hole communicating with outside 有权
    具有与外部连通的孔的中空工件的表面处理工艺

    公开(公告)号：US06355313B1

    公开(公告)日：2002-03-12

    申请号：US09512655

    申请日：2000-02-24

    申请人： Kohshi Yoshimura ,  Takeshi Nishiuchi ,  Fumiaki Kikui

    发明人： Kohshi Yoshimura ,  Takeshi Nishiuchi ,  Fumiaki Kikui

    IPC分类号： B29C3508

    CPC分类号： H01F41/026 ,  C23C10/02 ,  C23C10/34 ,  Y10T428/12063 ,  Y10T428/12465

    摘要： A hollow work having a hole communicating with the outside and a fine metal powder producing material are placed into a treating vessel, where the fine metal powder producing material is brought into flowing contact with the surface of the work, thereby adhering a fine metal powder produced from the fine metal powder producing material to the surface of the work. The hollow work may be a ring-shaped bonded magnet. Thus, a film having an excellent corrosion resistance can be formed without use of a third component such as a resin and a coupling agent by providing an electric conductivity to the entire surface of the magnet, i.e., not only to the outer surface (including end faces) but also to the inner surface of the magnet and subjecting the magnet to an electroplating treatment.

    摘要翻译： 将具有与外部连通的孔的中空工件和精细的金属粉末生成材料放置在处理容器中，使金属粉末生成材料与工件的表面流动接触，从而粘附生产的细金属粉末 从精细的金属粉末生产材料到工作的表面。 中空的工件可以是环形粘结磁体。 因此，通过向磁体的整个表面提供导电性，即不仅可以形成具有优异耐腐蚀性的膜，而且不需要使用诸如树脂和偶联剂的第三组分， 面），而且还与磁体的内表面并对磁体进行电镀处理。

    Corrosion-resistant permanent magnet and method for producing the same
    8.
    发明授权
    Corrosion-resistant permanent magnet and method for producing the same 有权
    耐腐蚀永磁体及其制造方法

    公开(公告)号：US06281774B1

    公开(公告)日：2001-08-28

    申请号：US09554013

    申请日：2000-05-09

    申请人： Takeshi Nishiuchi ,  Kohshi Yoshimura ,  Fumiaki Kikui

    发明人： Takeshi Nishiuchi ,  Kohshi Yoshimura ,  Fumiaki Kikui

    IPC分类号： H01F702

    CPC分类号： H01F41/026 ,  Y10S428/90 ,  Y10T428/256 ,  Y10T428/265

    摘要： The present invention provides an Fe—B—R based permanent magnet, which has a chemical conversion coating film formed on its surface with an aluminum film interposed therebetween, the chemical conversion coating film containing at least one of titanium and zirconium, phosphorus, oxygen and fluorine as constituting elements, and a process for producing such an Fe—B—R based permanent magnet. In the permanent magnet, the chemical conversion coating film is adhered firmly to the magnet with the aluminum film interposed therebetween and hence, the magnet is excellent in corrosion resistance. Even if the magnet is left to stand for a long time under high-temperature and high-humidity conditions of a temperature of 80° C. and a relative humidity of 90%, the magnet exhibits a stable high magnetic characteristic which cannot deteriorate. Moreover, the film is free from hexa-valent chromium.

    摘要翻译： 本发明提供一种Fe-BR系永久磁铁，其特征在于，具有在其表面形成有铝膜的化学转化膜，所述化学转化膜含有钛，锆，磷，氧，氟中的至少一种，作为 构成元素，以及这种Fe-BR类永久磁铁的制造方法。 在永久磁铁中，化学转化膜与铝磁性膜牢固地粘附在磁铁上，因此，磁铁的耐腐蚀性优异。 即使磁铁在温度80℃，相对湿度90％的高温高湿条件下长时间放置，磁铁表现出稳定的高磁特性，不会劣化。 此外，该膜不含六价铬。

    Process for producing Fe-B-R based permanent magnet having a corrosion-resistant film
    9.
    发明授权
    Process for producing Fe-B-R based permanent magnet having a corrosion-resistant film 有权
    具有耐腐蚀膜的Fe-B-R系永久磁铁的制造方法

    公开(公告)号：US06251196B1

    公开(公告)日：2001-06-26

    申请号：US09383274

    申请日：1999-08-26

    申请人： Takeshi Nishiuchi ,  Kohshi Yoshimura ,  Fumiaki Kikui

    发明人： Takeshi Nishiuchi ,  Kohshi Yoshimura ,  Fumiaki Kikui

    IPC分类号： C23C880

    CPC分类号： H01F41/026 ,  Y10T428/12465 ,  Y10T428/12611

    摘要： An Fe—B—R based permanent magnet and metal pieces are placed into a treating vessel, where they are vibrated and/or agitated, whereby a metal film is formed on the surface of the magnet. A sol solution produced by the hydrolytic reaction and the polymerizing reaction of a metal compound which is a starting material for a metal oxide film is applied to the metal film and subjected to a heat treatment to form a metal oxide film. Therefore, it is possible to form, on the surface of the magnet, a corrosion-resistant film which can be produced easily and at a low cost without carrying-out of a plating treatment or a treatment using hexa-valent chromium and which has an excellent adhesion to the surface of the magnet and can exhibit a stable high magnetic characteristic which cannot be degraded even if the magnet is left to stand for a long period of time under high-temperature and high-humidity conditions of a temperature of 80° C. and a relative humidity of 90%. Thus, it is possible to provide an Fe—B—R based permanent magnet having an excellent corrosion resistance.

    摘要翻译： 将Fe-B-R基永磁体和金属片放置在处理容器中，在其中它们被振动和/或搅动，由此在磁体的表面上形成金属膜。 将作为金属氧化物膜的原料的金属化合物的水解反应和聚合反应产生的溶胶溶液施加到金属膜上，进行热处理，形成金属氧化物膜。 因此，可以在磁体的表面形成耐腐蚀性膜，其可以容易且低成本地生产，而不会进行电镀处理或使用六价铬的处理，并且具有 对磁体表面的附着力优异，能够呈现稳定的高磁特性，即使在80℃以上的高温高湿条件下长时间放置磁体也不会降低 相对湿度为90％。 因此，可以提供耐腐蚀性优异的Fe-B-R系永久磁铁。