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。

公开(公告)号：US07217328B2

公开(公告)日：2007-05-15

申请号：US10642324

申请日：2003-08-18

申请人： Takeshi Nishiuchi ,  Hirokazu Kanekiyo ,  Satoshi Hirosawa ,  Toshio Miyoshi

发明人： Takeshi Nishiuchi ,  Hirokazu Kanekiyo ,  Satoshi Hirosawa ,  Toshio Miyoshi

IPC分类号： H01F1/053 ,  H01F1/057

CPC分类号： B82Y25/00 ,  B22F2998/10 ,  C22C1/0441 ,  H01F1/0578 ,  H01F1/0579 ,  B22F9/008 ,  B22F9/04 ,  B22F9/007

摘要： A compound for a rare-earth bonded magnet includes a rare-earth alloy powder and a binder. The rare-earth alloy powder includes at least about 2 mass % of Ti-containing nanocomposite magnet powder particles with a composition represented by (Fe1-mTm)100-x-y-zQxRyMz, where T is Co and/or Ni; Q is B with or without C; R is at least one rare-earth element substantially excluding La and Ce; M is at least one metal element selected from Ti, Zr and Hf and always includes Ti; and 10

摘要翻译： 稀土类粘结磁铁用复合体包括稀土类合金粉末和粘合剂。 所述稀土类合金粉末至少含有2质量％以下的含Ti的纳米复合磁体粉末颗粒，其组成由（Fe 1-m M m） > 100-xyz其中T是Co和/或Ni;其中T是Co和/或Ni; Q是带有或不带C的B; R是至少一种基本上不含La和Ce的稀土元素; M是选自Ti，Zr和Hf中的至少一种金属元素，并且总是包括Ti; 和10

公开(公告)号：US07086934B2

公开(公告)日：2006-08-08

申请号：US10793817

申请日：2004-03-08

申请人： Yoshimi Tochishita ,  Kazuaki Okuno ,  Nobuhiro Misumi ,  Takeshi Nishiuchi

发明人： Yoshimi Tochishita ,  Kazuaki Okuno ,  Nobuhiro Misumi ,  Takeshi Nishiuchi

IPC分类号： B24C1/10

CPC分类号： B24C3/28 ,  C23C14/028

摘要： A process for treating surfaces of rare earth metal-based permanent magnets, comprising removing an oxide layer formed on a surface of each of the permanent magnets using a blasting apparatus. The apparatus comprises a tubular barrel formed of a mesh net for accommodation of work pieces and supported circumferentially outside a center axis of a support member rotatable about the center axis, and an injection nozzle disposed to inject a blast material against the work pieces from the outside of the tubular barrel, wherein at least one of the tubular barrel and the support member is detachably mounted. The process further comprises removing the tubular barrel or the support member from the blasting apparatus and attaching the tubular barrel or the support member to a vapor deposited film forming apparatus, where a metal film is formed on the surface of each of the permanent magnets by a vapor deposition process.

摘要翻译： 一种用于处理稀土金属基永磁体的表面的方法，包括使用喷砂装置除去形成在每个永磁体的表面上的氧化物层。 该装置包括由网状物形成的管状筒体，用于容纳工件，并且围绕中心轴线可围绕支撑构件的中心轴线周向地支撑;以及喷嘴，其设置成将喷射材料从外部喷射到工件上 其中管状筒和支撑构件中的至少一个可拆卸地安装。 该方法还包括从喷砂设备中取出管状筒体或支撑构件，并将管状筒体或支撑构件附接到蒸镀膜形成设备，其中通过一个永磁体的表面上形成金属膜 气相沉积工艺。

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。

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。

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。

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。

公开(公告)号：US07670443B2

公开(公告)日：2010-03-02

申请号：US11673729

申请日：2007-02-12

申请人： Ryosuke Kogure ,  Hirokazu Kanekiyo ,  Takeshi Nishiuchi ,  Satoshi Hirosawa

发明人： Ryosuke Kogure ,  Hirokazu Kanekiyo ,  Takeshi Nishiuchi ,  Satoshi Hirosawa

IPC分类号： H01F1/053

CPC分类号： H01F1/015 ,  H01F1/0571

摘要： A method of making a magnetic alloy material includes the steps of: preparing a melt of an alloy material having a predetermined composition; rapidly cooling and solidifying the melt to obtain a rapidly solidified alloy represented by: Fe100-a-b-cREaAbTMc where RE is at least one rare-earth element selected from La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er and Tm and including at least about 90 at % of La; A is at least one element selected from Al, Si, Ga, Ge and Sn; TM is at least one transition metal element selected from Sc, Ti, V, Cr, Mn, Co, Ni, Cu and Zn; and 5 at %≦a≦10 at %, 4.7 at %≦b≦18 at % and 0 at %≦c≦9 at %; and producing a compound phase having an NaZn13-type crystal structure in at least about 70 vol % of the rapidly solidified alloy.

摘要翻译： 制造磁性合金材料的方法包括以下步骤：制备具有预定组成的合金材料的熔体; 快速冷却和固化熔体，得到一种由Fe100-ab-cREaAbTMc表示的快速固化的合金，其中RE是选自La，Ce，Pr，Nd，Pm，Sm，Eu，Gd，Tb中的至少一种稀土元素， Dy，Ho，Er和Tm，并且包括至少约90原子％的La; A是选自Al，Si，Ga，Ge和Sn中的至少一种元素; TM是选自Sc，Ti，V，Cr，Mn，Co，Ni，Cu和Zn中的至少一种过渡金属元素; 和5 at％＆nlE; a＆nlE; 10 at％，4.7 at％＆nlE; b＆nlE; 18 at％和0 at％＆nlE; c＆nlE; 9 at％; 并在至少约70vol％的快速凝固合金中生产具有NaZn13型晶体结构的复合相。

公开(公告)号：US20090032147A1

公开(公告)日：2009-02-05

申请号：US12254967

申请日：2008-10-21

申请人： Noriyuki NOZAWA ,  Takeshi NISHIUCHI ,  Satoshi HIROSAWA ,  Tomohito MAKI

发明人： Noriyuki NOZAWA ,  Takeshi NISHIUCHI ,  Satoshi HIROSAWA ,  Tomohito MAKI

IPC分类号： H01F1/08 ,  C22C1/04 ,  B22F3/11 ,  B22F3/12

CPC分类号： H01F41/0273 ,  B22F3/11 ,  B22F2003/248 ,  B22F2998/10 ,  C22C38/005 ,  C22C2202/02 ,  H01F1/0573 ,  H01F1/0576 ,  H01F1/0577 ,  H01F1/0578 ,  H01F41/0293 ,  B22F3/02 ,  B22F3/24

摘要： An R—Fe—B based rare-earth alloy powder with a mean particle size of less than about 20 μm is provided and compacted to make a powder compact. Next, the powder compact is subjected to a heat treatment at a temperature of about 550° C. to less than about 1,000° C. within hydrogen gas, thereby producing hydrogenation and disproportionation reactions (HD processes). Then, the powder compact is subjected to another heat treatment at a temperature of about 550° C. to less than about 1,000° C. within either a vacuum or an inert atmosphere, thereby producing desorption and recombination reactions and obtaining a porous material including fine crystal grains, of which the density is about 60% to about 90% of their true density and which have an average crystal grain size of about 0.01 μm to about 2 μm (DR processes). Thereafter, the porous material is subjected to yet another heat treatment at a temperature of about 750° C. to less than about 1,000° C. within either the vacuum or the inert atmosphere, thereby further increasing its density to about 93% or more of their true density and making an R—Fe—B based microcrystalline high-density magnet.

摘要翻译： 提供平均粒径小于约20μm的R-Fe-B系稀土合金粉末并压实成粉末压块。 接着，在氢气中，在约550℃至小于约1000℃的温度下对粉体进行热处理，由此进行氢化和歧化反应（HD工艺）。 然后，在真空或惰性气氛中，将粉末压块在约550℃至小于约1000℃的温度下进行另外的热处理，从而产生解吸和重组反应，并获得包括精细的多孔材料 晶粒，其密度为其真实密度的约60％至约90％，并且其平均晶粒尺寸为约0.01μm至约2μm（DR工艺）。 此后，多孔材料在真空或惰性气氛中在约750℃至小于约1000℃的温度下进行另外的热处理，从而进一步将其密度提高到约93％以上 它们的真实密度并制成R-Fe-B基微晶高密度磁体。

公开(公告)号：US07186303B2

公开(公告)日：2007-03-06

申请号：US10642276

申请日：2003-08-18

申请人： Ryosuke Kogure ,  Hirokazu Kanekiyo ,  Takeshi Nishiuchi ,  Satoshi Hirosawa

发明人： Ryosuke Kogure ,  Hirokazu Kanekiyo ,  Takeshi Nishiuchi ,  Satoshi Hirosawa

IPC分类号： H01F1/055

CPC分类号： H01F1/015 ,  H01F1/0571

摘要： A method of making a magnetic alloy material includes the steps of: preparing a melt of an alloy material having a predetermined composition; rapidly cooling and solidifying the melt to obtain a rapidly solidified alloy represented by: Fe100-a-b-cREaAbTMc where RE is at least one rare-earth element selected from La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er and Tm and including at least about 90 at % of La; A is at least one element selected from Al, Si, Ga, Ge and Sn; TM is at least one transition metal element selected from Sc, Ti, V, Cr, Mn, Co, Ni, Cu and Zn; and 5 at %≦a≦10 at %, 4.7 at %≦b≦18 at % and 0 at %≦c≦9 at %; and producing a compound phase having an NaZn13-type crystal structure in at least about 70 vol % of the rapidly solidified alloy.

摘要翻译： 制造磁性合金材料的方法包括以下步骤：制备具有预定组成的合金材料的熔体; 快速冷却和固化熔体以获得由以下物质表示的快速固化的合金：Fe / SUB>其中RE是选自La，Ce，Pr，Nd，Pm，Sm，Eu，Gd，Tb，Dy，Ho，Er和Tm中的至少一种稀土元素，并且包括至少约90at％的La ; A是选自Al，Si，Ga，Ge和Sn中的至少一种元素; TM是选自Sc，Ti，V，Cr，Mn，Co，Ni，Cu和Zn中的至少一种过渡金属元素; 和5原子％<= a <= 10原子％，4.7原子％<= b <= 18原子％和0原子％<= c <= 9原子％ 并在至少约70vol％的快速凝固合金中生产具有NaZn 13 N型晶体结构的化合物相。