Includes Adding A Binder Material Patents (Class 419/65)
  • Patent number: 8940816
    Abstract: The master batch for molding includes at least one inorganic powder, advantageously ceramic or metallic; an organic mixture, advantageously polymer, comprising: a stable polymer having good ductility features, from 30 to 90% by mass of the mixture; a lubricant, from 5 to 30% by mass of the mixture; a plasticizing polymer, from 5 to 30% by mass of the mixture; with a [% by mass of the lubricant]/[% by mass of the stable polymer] ratio smaller than or equal to 1, advantageously strictly smaller than 1.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: January 27, 2015
    Assignee: Commissariat a l'Energie Atomique et aux Energies Alternatives
    Inventors: Florence Servant, Pascal Tiquet
  • Patent number: 8932517
    Abstract: A process for production of a packed soft magnetic component, comprises the steps of:—preparing a rotational mold, consisting of at least one mold cavity connected to a driven rotational axle, arranging a coil in the mold, filling the at least one mold cavity with a binder and a soft magnetic, metallic material in the form of a powder,—driving the axle for rotation of said at least one mold, whereby the soft magnetic, metallic material is packed by centrifugal forces to one side of said at least one mold cavity, mixed with the binder, thus forming a component comprising a soft magnetic composite with a coil embedded therein.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: January 13, 2015
    Assignee: Magnetic Components Sweden AB
    Inventor: Mats Alaküla
  • Publication number: 20150002255
    Abstract: Provided is a composite for manufacturing a chip part for a high frequency, and the composite includes a magnetic powder having a relatively spherical shape, and a metal magnetic body particle having a relatively more amorphous shape than that of the magnetic powder and a lower hardness than that of the magnetic powder.
    Type: Application
    Filed: June 27, 2014
    Publication date: January 1, 2015
    Inventors: Hak Kwan KIM, Sung Yong AN, Jae Yeong KIM, Jung Wook SEO
  • Patent number: 8916088
    Abstract: Metal, ceramic and cermet hollow articles produced from low viscosity suspensions. The articles are useful for filters, catalyst media, fuel cell electrodes, body implantation devices, structural materials, vibration and noise control, heat exchangers, heat sinks, heat pipes, heat shields and other applications.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: December 23, 2014
    Inventors: Mohammad Behi, Alexander Lobovsky
  • Patent number: 8845050
    Abstract: A three-dimensional modeling apparatus includes a stage, a head, an adjustment mechanism, an ejection command means, and a control means. On the stage, a powder material is accumulated. The head ejects ink to the powder material on the stage. The adjustment mechanism adjusts a relative height of the stage and the head for each predetermined layer thickness so that a three-dimensional object is formed on the stage by the predetermined layer thickness. The ejection command means causes the ink to be ejected from the head so that the powder material is colored a plurality of colors corresponding to multilevel luminance information items in a multivalued image obtained by performing a multivalued processing of luminance with respect to a two-dimensional cross-sectional image data of a modeling target object. The control means controls the adjustment mechanism and the ejection command means so that the multivalued image is drawn for each layer thickness.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: September 30, 2014
    Assignee: Sony Corporation
    Inventors: Takeshi Matsui, Junichi Kuzusako, Hiroyuki Yasukochi
  • Publication number: 20140286817
    Abstract: The present invention relates to a method of producing a large amount of hard-soft magnetic nanocomposite powder in short time. The hard-soft magnetic nanocomposite powder of present invention has some merits such as independence from resource supply problem of rare earth elements and low price and can overcome physical and magnetic limitations possessed by the conventional ferrite monophased material.
    Type: Application
    Filed: January 9, 2013
    Publication date: September 25, 2014
    Inventors: Jinbae Kim, Jongryoul Kim, Sanggeun Cho, Namseok Kang
  • Publication number: 20140170014
    Abstract: Disclosed is a method for producing a magnetic powder comprising: a first step of producing a R—Fe—B-based rare earth isotropic magnetic powder using a scrap rare earth magnet through a HDDR process; and a second step of mixing the R—Fe—B-based rare earth isotropic magnetic powder with an anisotropic magnetic powder, and a method for producing a magnet using the magnetic powder.
    Type: Application
    Filed: May 1, 2013
    Publication date: June 19, 2014
    Applicants: KOREA INSTITUTE OF MACHINERY & MATERIALS, HYUNDAI MOTOR COMPANY
    Inventors: Jae Ryung Lee, Ji Hun Yu, Jung Goo Lee
  • Publication number: 20140020881
    Abstract: A composite article (1; 10; 40) comprises a plurality of inclusions (5) of a magnetocalorically active material embedded in a matrix (4) of a magnetocalorically passive material. The inclusions (5) and the matrix (4) have a microstructure characteristic of a compacted powder.
    Type: Application
    Filed: September 16, 2013
    Publication date: January 23, 2014
    Applicant: Vacuumschmeize GmbH & Co. KG
    Inventors: George Werner REPPEL, Matthias KATTER
  • Publication number: 20140023922
    Abstract: Disclosed is a manufacturing method of an electrode for an electrochemical element having a superior adhesion and is used for an electrochemical element with excellent productivity due to a short predoping time. Specifically disclosed is that the method is characterized by comprising a step for compression forming of electrode material (a mixed powder or composite particles) including an alkaline metal powder or an alkaline earth metal powder each having a coated surface.
    Type: Application
    Filed: January 23, 2012
    Publication date: January 23, 2014
    Applicant: ZEON CORPORATION
    Inventors: Yasuhiro Isshiki, Yasuhiro Wakizaka
  • Publication number: 20130323111
    Abstract: The present invention provides a method of production of a rare earth magnet which achieves high magnetization by hot working and at the same time secures high coercivity. A method of production of the present invention is a method for producing an R-T-B-based rare earth magnet comprising: molding a powder of an R-T-B-based rare earth alloy (R: rare earth element, T: Fe or Fe part of which is substituted by Co) to form a bulk; then hot working the bulk; and before the molding, mixing with the powder of an R-T-B-based rare earth alloy either a metal which forms a liquid phase in copresence with R at a temperature lower than the hot working temperature, or an alloy which forms a liquid phase at a temperature lower than the hot working temperature.
    Type: Application
    Filed: February 21, 2011
    Publication date: December 5, 2013
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Noritaka Miyamoto, Tetsuya Shoji, Shinya Omura, Daisuke Ichigozaki, Akira Manabe
  • Publication number: 20130243637
    Abstract: A method for classifying articles comprising magnetocalorically active material according to magnetic transition temperature comprises providing a source of articles to be classified, the source comprising articles comprising magnetocalorically active materials having differing magnetic transition temperatures, sequentially applying a magnetic field at differing temperatures to the source, the magnetic field being sufficient to exert a magnetic force on the source that is greater than the inertia of a fraction of the articles causing the fraction of the articles to move and produce an article fraction, and collecting the article fraction at each temperature to provide a plurality of separate article fractions of differing magnetic transition temperature, thus classifying the articles comprising magnetocalorically active material according to magnetic transition temperature.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 19, 2013
    Applicant: Vacuumschmelze GmbH & Co. KG
    Inventor: Matthias KATTER
  • Patent number: 8524147
    Abstract: A process for producing powder green compacts includes centrifugally compacting a slip containing a material powder, a binder resin and a dispersion medium in a mold, into a compact containing the material powder and the binder resin. A process for producing sintered compacts includes sintering the green compact. A powder green compact contains a material powder and a binder resin, the binder resin being present between particles of the material powder and binding the material particles. A sintered compact is obtained by sintering the green compact.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: September 3, 2013
    Assignees: Hiroshima University, Alloy Industries Co., Ltd.
    Inventors: Hiroyuki Suzuki, Yoshinobu Shimoitani
  • Patent number: 8496726
    Abstract: A clayish composition for forming a sintered silver alloy body capable of forming a sintered silver alloy body, which is not easily discolored even in the atmosphere and has excellent tensile strength, flexural strength, surface hardness (hereinafter, sometimes collectively referred to as ‘mechanical strength’), elongation or the like, powder for the clayish composition for forming a sintered silver alloy body, a method for manufacturing the clayish composition for forming a sintered silver alloy body, a sintered silver alloy body and a method for manufacturing the sintered silver alloy body.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: July 30, 2013
    Assignee: Mitsubishi Materials Corporation
    Inventors: Takashi Yamaji, Yasuo Ido, Shinji Otani
  • Patent number: 8496725
    Abstract: The invention relates to a composition for producing magnetic or magnetizable moldings, comprising from 95.5 to 98.95% by weight of a powder made of a magnetic or magnetizable material, from 1.0 to 4% by weight of a mixture made of at least one epoxy-novolak resin, and also of at least one hardener, and comprising from 0.05 to 0.5% by weight of at least one additive, based in each case on the total weight of the composition. The mixture made of the at least one epoxy-novolak resin and of the at least one hardener comprises from 85 to 95% by weight of the epoxy-novolak resin and from 5 to 15% by weight of hardener. The hardener has been selected from (cyclo)aliphatic amines and their adducts, polyamides, Mannich bases, amidoamines, phenolic resins, imidazoles, and imidazole derivatives, dicyandiamide, and BF3-monoethanolamine. The invention further relates to a process for producing the composition, and also to a process for producing a molding made of the composition.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: July 30, 2013
    Assignee: BASF SE
    Inventors: Carsten Blettner, Jürgen Kaczun, Ria Kress, Dag Wiebelhaus
  • Publication number: 20130064708
    Abstract: A method for injection molding or extrusion of cemented carbide or cermet parts uses a binder system, including 20-70 wt-% olefinic polymer, 30-80 wt-% wax. The olefinic polymer is a co-polymer of polyethylene and poly(alpha-olefin). By using such a binder system, a tougher material behavior of the green body and a lower temperature during the injection molding or extrusion is achieved.
    Type: Application
    Filed: April 20, 2010
    Publication date: March 14, 2013
    Applicant: SECO TOOLS AB
    Inventors: Regina Lundell, Per Jonson, Mattias Puide
  • Patent number: 8308841
    Abstract: A clayish composition for forming a sintered silver alloy body capable of forming a sintered silver alloy body, which is not easily discolored even in the atmosphere and has excellent tensile strength, flexural strength, surface hardness (hereinafter, sometimes collectively referred to as ‘mechanical strength’), elongation or the like, powder for the clayish composition for forming a sintered silver alloy body, a method for manufacturing the clayish composition for forming a sintered silver alloy body, a sintered silver alloy body and a method for manufacturing the sintered silver alloy body.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: November 13, 2012
    Assignee: Mitsubishi Materials Corporation
    Inventors: Takashi Yamaji, Yasuo Ido, Shinji Otani
  • Publication number: 20120239162
    Abstract: A tissue scaffold fabricated from tantalum fiber forms a rigid three-dimensional porous matrix having a tantalum composition. Porosity in the form of interconnected pore space is provided by the space between the tantalum fiber in the porous matrix. Strength of the porous matrix is provided by tantalum fiber fused and bonded into the rigid three-dimensional matrix having a specific pore size and pore size distribution. The tissue scaffold supports tissue in-growth to provide osteoconductivity as a tissue scaffold, used for the repair of damaged and/or diseased bone tissue.
    Type: Application
    Filed: September 9, 2011
    Publication date: September 20, 2012
    Applicant: BIO2 TECHNOLOGIES, INC
    Inventor: James Jenq Liu
  • Publication number: 20120164019
    Abstract: A method of manufacturing rare-earth magnet powder having excellent magnetic properties, and a method of manufacturing a rare-earth bond magnet are provided. A nitriding step is performed, in which when nitrided rare-earth magnet powder is produced, rare-earth-element/transition metal-based alloy powder is irradiated with a microwave at an atmosphere containing nitrogen atoms, so that the nitrogen atoms are allowed to enter into a crystal lattice.
    Type: Application
    Filed: May 12, 2008
    Publication date: June 28, 2012
    Inventor: Yoshibumi Nakamura
  • Patent number: 8105443
    Abstract: A method for the production of pressed permanent magnets comprises the following steps: A mixture of at least one magnetic powder and a thermosetting binder is provided and pressed to produce a moulded body. In order to obtain a permanent and particularly reliable protection against oxidation and corrosion, the moulded body is impregnated with an acid and solvent mixture in an impregnating bath before the cure of the thermosetting binder, whereby the entire surface of the permanent magnet is coated with a reaction layer [FIG. 1].
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: January 31, 2012
    Assignee: Vacuumschmelze GmbH & Co.
    Inventors: Georg Werner Reppel, Volker Zellmann
  • Publication number: 20120009080
    Abstract: A method for producing a metal article according to one embodiment may involve the steps of: Providing a composite metal powder including a substantially homogeneous dispersion of molybdenum and molybdenum disulfide sub-particles that are fused together to form individual particles of the composite metal powder; and compressing the molybdenum/molybdenum disulfide composite metal powder under sufficient pressure to cause the mixture to behave as a nearly solid mass.
    Type: Application
    Filed: July 11, 2011
    Publication date: January 12, 2012
    Applicant: Climax Engineered Materials, LLC
    Inventors: Matthew C. Shaw, Carl V. Cox, Yakov Epshteyn
  • Patent number: 8062583
    Abstract: A method for producing a soft magnetic powdered core includes preparing a mixture of a soft magnetic powder and a resin powder, compacting the mixture into a predetermined shape so as to obtain a compact, and heating the compact. The resin powder has a median size of not more than 30 ?m, a maximum particle size of not more than 100 ?m, and a specific surface area of not less than 1.0 m2/cm3, and the additive amount thereof is 0.005 to 2 vol %.
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: November 22, 2011
    Assignees: Hitachi Powdered Metals Co., Ltd., Denso Corporation
    Inventors: Chio Ishihara, Kazuo Asaka, Kohei Muramatsu, Tsuyoshi Akao, Hirotake Hamamatsu
  • Patent number: 8061025
    Abstract: A method of manufacturing a heat radiation substrate having a metal core, including injection-molding mixed powder of carbon nanotubes and metal in a die to fabricate a metal core having through holes; molding the entire metal core including the through holes with an insulating resin to fabricate a metal core substrate; processing the insulating resin provided in the through holes to form connection holes; and forming a circuit pattern on the metal core substrate in which the connection holes are formed.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: November 22, 2011
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Seung Hyun Cho, Byoung Youl Min, Soon Jin Cho, Jin Won Choi
  • Publication number: 20110250089
    Abstract: A clayish composition for forming a sintered silver alloy body capable of forming a sintered silver alloy body, which is not easily discolored even in the atmosphere and has excellent tensile strength, flexural strength, surface hardness (hereinafter, sometimes collectively referred to as ‘mechanical strength’), elongation or the like, powder for the clayish composition for forming a sintered silver alloy body, a method for manufacturing the clayish composition for forming a sintered silver alloy body, a sintered silver alloy body and a method for manufacturing the sintered silver alloy body.
    Type: Application
    Filed: January 28, 2011
    Publication date: October 13, 2011
    Applicant: MITSUBISHI MATERIALS CORPORATION
    Inventors: Takashi Yamaji, Yasuo Ido, Shinji Otani
  • Patent number: 8034153
    Abstract: A composition for coating sliding or rolling or fretting or impacting members is formed by preparing a composite powder of TiB2 and BN, with a TiB2 to BN ratio ranging from 1:7 to 20:1, and a metallic matrix selected from the group consisting of nickel, chromium, iron, cobalt, aluminum, tungsten, carbon and alloys thereof.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: October 11, 2011
    Assignee: Momentive Performances Materials, Inc.
    Inventors: Robert Marchiando, Jon Leist
  • Publication number: 20110209575
    Abstract: A granulated powder includes a metal powder and an organic binder and is obtained by binding a plurality of metal particles in the metal powder to one another by the organic binder. The organic binder contains polyvinyl alcohol or a derivative thereof and a polyol. Further, the ratio of the apparent density of the granulated powder to the true density of the metal powder (a metal material constituting the metal powder) is from 20% to 50%. Further, as the polyol, glycerin is preferred, and the amount thereof is preferably from 0.01 to 0.2 parts by weight based on 100 parts by weight of the metal powder.
    Type: Application
    Filed: February 28, 2011
    Publication date: September 1, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Takeshi KADOMURA
  • Publication number: 20110168363
    Abstract: A composite article (1; 10; 40) comprises a plurality of inclusions (5) of a magnetocalorically active material embedded in a matrix (4) of a magnetocalorically passive material. The inclusions (5) and the matrix (4) have a microstructure characteristic of a compacted powder.
    Type: Application
    Filed: December 27, 2007
    Publication date: July 14, 2011
    Inventors: Georg Werner Reppel, Matthias Katter
  • Publication number: 20110147208
    Abstract: A method for producing a metal article may include: Producing a supply of a composite metal powder by: providing a supply of molybdenum metal powder; providing a supply of a sodium compound; combining the molybdenum metal powder and the sodium compound with a liquid to form a slurry; feeding the slurry into a stream of hot gas; and recovering the composite metal powder; and consolidating the composite metal powder to form the metal article, the metal article comprising a sodium/molybdenum metal matrix. Also disclosed is a metal article produced accordance with this method.
    Type: Application
    Filed: March 2, 2011
    Publication date: June 23, 2011
    Applicant: Climax Engineered Materials, LLC
    Inventors: Naresh Goel, Carl Cox, Dave Honecker, Eric Smith, Chris Michaluk, Adam DeBoskey, Sunil Chandra Jha
  • Patent number: 7914599
    Abstract: A slag conditioner containing MgO, carbon or a filler and a binder is mixed and formed under pressure to produce aggregates which can have the form of a briquette. The slag conditioner is used to improve the operating performance and refractory life in steel melting furnaces. A slag conditioner comprising by weight a mixture and 2% to 25% binder for bonded agglomerates or larger particles of said mixture, the mixture comprising: 20% to 90% burned aggregates comprised of particles less than 8 mm of which at least 30% is 0.2 mm or greater and containing between 35% and 94% MgO; up to 50% slag-making carbonaceous or other additive; and up to 50% light burned magnesite.
    Type: Grant
    Filed: November 17, 2004
    Date of Patent: March 29, 2011
    Assignee: ISM, Inc.
    Inventors: Joseph L. Stein, Brian J Stein, John Beatty
  • Publication number: 20100297462
    Abstract: In one embodiment, the present invention may be a method of forming a porous and/or dense article from metal powder (12), including adding to a mold a first feedstock comprising an agglomerated metal powder (12) and an agglomeration agent, forming said first feedstock into a green state dense article (22); and removing said agglomeration agent. Furthermore, the present invention may include a second feedstock including an agglomerated metal powder (12), a space filling material and an agglomeration agent which may be formed into a green state porous article (21). The present invention also includes a dense and/or porous article (22 and 21) manufactured by various methods, as well as methods for creating the dense and porous feedstocks. Moreover, the present invention may include an article which may be a medical implant.
    Type: Application
    Filed: November 13, 2007
    Publication date: November 25, 2010
    Applicant: HOWMEDICA OSTEONICS CORP.
    Inventors: John Lapszynski, Robert W. Klein, Michael A. DeLuise
  • Patent number: 7785424
    Abstract: Magnetic powder contained in a resin composition for use in injection molding is coated with an insulating material, and a soft magnetic green compact or a hard magnetic green compact is insert molded into the resin composition. Increased magnetic flux destiny, reduced size, a simplified shape, and/or increased filling density can be achieved in a core part of an electric instrument.
    Type: Grant
    Filed: August 23, 2005
    Date of Patent: August 31, 2010
    Assignee: Nippon Kagaku Yakin Co., Ltd.
    Inventors: Kiyotaka Matsukawa, Kozo Ishihara, Kazuo Ishikawa, Tomohiro Toyoda, Toshikazu Tanaka
  • Publication number: 20100196734
    Abstract: Wear protection sheets containing hard material particles having a metallic shell and solder material particles selected from the group consisting of soft solders, hard solders and high-temperature solders, the use of the wear protection sheets and a process for producing them by tape casting are described.
    Type: Application
    Filed: October 8, 2009
    Publication date: August 5, 2010
    Applicants: H.C. Starck Inc.
    Inventors: Michael Svec, Karl-Hermann Buchner, Hans-Peter Baldus, Aloys Eiling, Jim Ryan
  • Patent number: 7758804
    Abstract: The invention concerns a method for producing products and coarse iron-based powder comprising a lubricant having a crystalline melting point below 25° C., a viscosity (?) at 40° C. above 15 mPas and wherein said viscosity is temperature dependent according to the following formula: 10 log ?=k/T+C wherein the slope k is preferably above 800, T is temperature in Kelvin and C is a constant, in an amount between 0.05 and 0.4%.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: July 20, 2010
    Assignee: Höganäs AB
    Inventors: Hilmar Vidarsson, Paul Skoglund, Sven Allroth, Ermin Imamovic
  • Patent number: 7721649
    Abstract: A shaped charge liner formed by injection molding, where the liner comprises a powdered metal mixture of a first and second metal. The mixture includes about 50% to about 99% by weight percent of the first metal, about 1% to about 50% by weight percent of a second metal, about 1% to about 50% by weight percent of a third metal. In one embodiment, the first metal comprises tungsten, the second metal may comprise nickel, and the third metal may comprise copper.
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: May 25, 2010
    Assignee: Baker Hughes Incorporated
    Inventors: Avigdor Hetz, Clarence W. Wendt, John D. Loehr, William B. Harvey, David Betancourt
  • Publication number: 20100116471
    Abstract: A composite article (1; 10; 40) comprises a plurality of inclusions (5) of a magnetocalorically active material embedded in a matrix (4) of a magnetocalorically passive material. The inclusions (5) and the matrix (4) have a microstructure characteristic of a compacted powder.
    Type: Application
    Filed: December 27, 2007
    Publication date: May 13, 2010
    Inventors: Georg Werner Reppel, Matthias Katter
  • Publication number: 20100075169
    Abstract: A method for producing a weight comprising following steps: (a) grinding a barium sulfate ore into powder, (b) mixing the barium sulfate ore powder with dihydrolipoyl and solidifying agent, (c) extruding the mixture, and (d) die-casting the extruded mixture into a weight of a predetermined shape.
    Type: Application
    Filed: September 23, 2008
    Publication date: March 25, 2010
    Inventor: Xiaoyao Qiang
  • Patent number: 7682558
    Abstract: A metallurgical composition is provided for making compacted parts, comprising: (a) at least about 80 percent by weight of an iron or iron-based powder; (b) up to about 20 percent by weight of at least one alloying powder; (c) from about 0.05 to about 2 percent by weight of a binding agent comprising a C14-C30 fatty alcohol; and (d) from about 0.001 to about 0.2 percent by weight of a flow agent.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: March 23, 2010
    Assignee: Höganäs AB (PUBL)
    Inventors: Per Knutsson, Per-Olof Larsson, Hilmar Vidarsson
  • Publication number: 20090267017
    Abstract: A flat soft magnetic material to be used for a noise-suppressing magnetic sheet, wherein the 50% particle size D50 (?m), coercive force Hc (A/m) and bulk density BD (Mg/m3) of the flat soft magnetic material satisfy the following formula (1). D50/(HC×BD)?1.
    Type: Application
    Filed: April 20, 2009
    Publication date: October 29, 2009
    Applicant: TDK Corporation
    Inventors: Atsuhito Matsukawa, Katsuhiko Wakayama, Hideharu Moro, Naoyoshi Sato, Yoshihito Hirai, Toshihisa Murayoshi
  • Publication number: 20090242826
    Abstract: To provide a high-frequency magnetic material having a superior radio wave absorption property in a high frequency region and a method of manufacturing the same. The high-frequency magnetic material and the method of manufacturing the same includes a magnetic substance containing metal nanoparticles, the metal nanoparticles are magnetic metals containing at least one kind of Fe, Co, and Ni, an average particle diameter of the metal nanoparticles is equal to or less than 200 nm, first clusters having network-like structures with continuous metal nanoparticles and the average diameter equal to or less than 10 ?m are formed, second clusters having network-like structures with the continuous first clusters and the average diameter equal to or less than 100 ?m are formed, and the entire magnetic substance has a network-like structure with the continuous second clusters.
    Type: Application
    Filed: March 18, 2009
    Publication date: October 1, 2009
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kouichi Harada, Tomohiro Suetsuna, Seiichi Suenaga
  • Publication number: 20090232693
    Abstract: The present invention provides an amorphous alloy powder and magnetic powder cores exhibiting excellent high frequency properties and a method for making themof. The composition of said alloy powder by atomic percentage satisfies the following formula: (Fe1-xMx)100-a-b-cPaTbDc, wherein M represents at least one element of Co and Ni; T is over three elements selected from Al, C, B and Si, D is at least one element of Sn, Cr, Mn, Mo, W, V, Nb, Ta, Ti, Zr, Hf, Pt, Pd and Au; the subscripts x, a, b, and c satisfy the relationships 0.01?x?0.16, 8?a?15, 10?b?25 and 0.5?c?6. The said amorphous alloy powder is made by atomization method and a magnetic powder core comprises a molded article of mixture of the said alloy powder and an insulating material. A method of making the amorphous alloy powder core includes the steps of screening, insulating, compacting, annealing and spray painting.
    Type: Application
    Filed: May 26, 2009
    Publication date: September 17, 2009
    Inventors: Zhichao Lu, Caowei Lu, Deren Li, Ko Sun, Shaoxiong Zhou
  • Publication number: 20090127110
    Abstract: A method of manufacturing an electrode for electrical-discharge surface treatment includes increasing oxygen content in the powder; mixing the powder, in which the oxygen content is increased, with an organic binder and a solvent to prepare a liquid mixture; granulating the powder in the liquid mixture to form granulated powder; and forming the granulated powder to prepare a compact in which an oxygen concentration ranges from 4 weight % to 16 weight %.
    Type: Application
    Filed: September 11, 2006
    Publication date: May 21, 2009
    Applicants: Mitsubishi Electric Corporation, IHI Corporation
    Inventors: Hiroyuki Teramoto, Yukio Sato, Akihiro Suzuki, Akihiro Goto, Kazushi Nakamura
  • Publication number: 20090129966
    Abstract: An iron-based rare-earth nanocomposite magnet according to the present invention includes an Nd2Fe14B phase and an ?-Fe phase and has a composition represented by the compositional formula: T100-x-y-z-n(B1-qCq)xRyTizMn, where T is at least one transition metal element selected from the group consisting of Fe, Co and Ni and always including Fe, R is at least one rare-earth element including substantially no La or Ce, and M is at least one metal element selected from the group consisting of Al, Si, V, Cr, Mn, Cu, Zn, Ga, Zr, Nb, Mo, Ag, Hf, Ta, W, Pt, Au and Pb, and the mole fractions x, y, z, n and q satisfy the inequalities of: 4 at %?x?10 at %, 6 at %?y?10 at %, 0.05 at %?z?5 at %, 0 at %?n?10 at %, and 0.05?q?0.5, respectively. The magnet includes 5 vol % to 60 vol % of ?-Fe phase with an average crystal grain size of 1 nm to 50 nm and 40 vol % to 90 vol % of Nd2Fe14B phase with an average crystal grain size of 5 nm to 100 nm.
    Type: Application
    Filed: March 22, 2006
    Publication date: May 21, 2009
    Applicant: Hitachi Metals, Ltd.
    Inventors: Hirokazu Kanekiyo, Toshio Miyoshi, Satoshi Hirosawa
  • Publication number: 20090081067
    Abstract: A method of fabricating a rare-earth based sintered magnet having improved magnetic and mechanical characteristics is offered. Also, a method of fabricating a rare-earth bonded magnet having improved magnetic and mechanical characteristics is offered. The method of fabricating the rare-earth based sintered magnet is started with preparing powder of an alloy including a rare-earth element and a transition metal. The powder of the alloy is mixed with an additive. The mixture is compression molded and irradiated with microwaves to cause the powder to self-heat. As a result, the mixture is sintered.
    Type: Application
    Filed: September 12, 2008
    Publication date: March 26, 2009
    Inventor: Yoshibumi Nakamura
  • Publication number: 20090071361
    Abstract: A shaped charge liner formed by injection molding, where the liner comprises a powdered metal mixture of a first and second metal. The mixture includes about 50% to about 99% by weight percent of the first metal, about 1% to about 50% by weight percent of a second metal, about 1% to about 50% by weight percent of a third metal. In one embodiment, the first metal comprises tungsten, the second metal may comprise nickel, and the third metal may comprise copper.
    Type: Application
    Filed: September 16, 2008
    Publication date: March 19, 2009
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Avigdor Hetz, Clarence W. Wendt, John D. Loehr, William B. Harvey, David Betancourt
  • Publication number: 20090053094
    Abstract: A rare-earth sintered magnet includes 12.0 at % to 15.0 at % of rare-earth element(s), which is at least one element selected from the group consisting of Nd, Pr, Gd, Tb, Dy and Ho and at least 50% of which is Nd and/or Pr; 5.5 at % to 8.5 at % of boron (B); a predetermined percentage of additive metal A; and iron (Fe) and inevitably contained impurities as the balance. The predetermined percentage of additive metal A includes at least one of 0.005 at % to 0.30 at % of silver (Ag), 0.005 at % to 0.40 at % of nickel (Ni), and 0.005 at % to 0.20 at % of gold (Au).
    Type: Application
    Filed: July 14, 2006
    Publication date: February 26, 2009
    Applicant: NEOMAX CO., LTD.
    Inventors: Hideyuki Morimoto, Tomoori Odaka
  • Publication number: 20090032147
    Abstract: An R—Fe—B based rare-earth alloy powder with a mean particle size of less than about 20 ?m 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 ?m to about 2 ?m (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.
    Type: Application
    Filed: October 21, 2008
    Publication date: February 5, 2009
    Applicant: HITACHI METALS, LTD.
    Inventors: Noriyuki NOZAWA, Takeshi NISHIUCHI, Satoshi HIROSAWA, Tomohito MAKI
  • Publication number: 20080218007
    Abstract: A surface magnet type rotor and an inner magnet type rotor having good motor characteristics in which bonding strength is high between a magnet section and a soft magnetic yoke section, and structural reliability is high even in high speed use, and its producing method. The rotor comprises an anisotropic bond magnet section and a soft magnetic section wherein the anisotropic bond magnet section is preformed in magnetic field and then formed to be integrated with the soft magnetic section in nonmagnetic field. Subsequently, it is heat hardened to produce a surface magnet type rotor. Magnet units, each having a magnetic pole composed by bonding a pair of permanent magnets such that the directions of magnetization become symmetric with respect to the bonding surface, are linked such that magnetic poles of different polarities appear alternately on the magnetic action surface thus forming an anisotropic magnet body.
    Type: Application
    Filed: December 19, 2005
    Publication date: September 11, 2008
    Applicant: HITACHI METALS, LTD.
    Inventors: Masahiro Masuzawa, Masahiro Mita, Keiko Kikuti
  • Publication number: 20080120889
    Abstract: Gun barrels made from advanced materials have the potential to provide a significant increase in barrel life as well as a reduction in weight (for advanced ceramic materials) for small caliber systems. The potential use of advanced materials as gun barrels is severely limited due to the difficulty in introducing the rifling pattern on the inner diameter. Most projectiles coming out of the guns are spin stabilized (for aerodynamic flight stability). This spin is imparted by a rifling pattern (lands and grooves) in the inner surface of the gun barrel. The processing of gun barrels made from advanced materials with internal rifling pattern poses a tremendous processing challenge to the materials community. The rifling lands and grooves and desired twist rate coupled with the difficulty of machining some of the advanced materials (ceramics, cermets, hardmetals, etc.) makes the economic manufacturing of such gun barrels extremely difficult.
    Type: Application
    Filed: July 3, 2006
    Publication date: May 29, 2008
    Inventors: Animesh Bose, Robert J. Dowding, Jeffrey J. Swab
  • Patent number: 7273527
    Abstract: The present invention provides a production method for a powdered core, including steps of preparing a mixture including a soft magnetic powder and a resin powder to obtain a mixture, compacting the mixture into a predetermined shape to obtain a green compact and heating the green compact, and wherein the resin powder has a median size of not more than 50 ?m, and the resin powder amount is 0.01 to 5 vol %. The method reduces production cost, and decreases eddy-current loss We and hysteresis loss Wh, whereby a powdered core in which a durability is improved and the technical advantages are expanded can be provided.
    Type: Grant
    Filed: November 2, 2006
    Date of Patent: September 25, 2007
    Assignees: Hitachi Powdered Metals Co., Ltd., Denso Corporation
    Inventors: Chio Ishihara, Kazuo Asaka, Kei Ishii, Tamio Takada, Tsuyoshi Akao, Isao Makino
  • Patent number: 7220380
    Abstract: A method for solid free-form fabrication of a three-dimensional metal object includes depositing a particulate blend in a defined region, the particulate blend including a number of metal or metal alloy particulates and a peroxide, and selectively ink-jetting a binder system onto a predetermined area of the particulate blend to form a green part, wherein the liquid phase binder includes a water soluble monofunctional acrylate-based monomer, a water soluble difunctional acrylate-based monomer, an amine, and water.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: May 22, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Isaac Farr, Terry M. Lambright, Daniel A. Kearl
  • Patent number: 7211158
    Abstract: The present invention provides a production method for a powdered core, including steps of preparing a mixture including a soft magnetic powder and a resin powder to obtain a mixture, compacting the mixture into a predetermined shape to obtain a green compact and heating the green compact, and wherein the resin powder has a median size of not more than 50 ?m, and the resin powder amount is 0.01 to 5 vol %. The method reduces production cost, and decreases eddy-current loss We and hysteresis loss Wh, whereby a powdered core in which a durability is improved and the technical advantages are expanded can be provided.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: May 1, 2007
    Assignees: Hitachi Powdered Metals Co., Ltd., Denso Corporation
    Inventors: Chio Ishihara, Kazuo Asaka, Kei Ishii, Tamio Takada, Tsuyoshi Akao, Isao Makino