Includes Adding A Binder Material Patents (Class 419/65)
-
Patent number: 11845129Abstract: According to examples, a brown body has from about 0.02 wt. % to about 10 wt. % of a metal nanoparticle binder, in which the metal nanoparticle binder is selectively located within an area of the brown body to impart a strength greater than about 1 kPa to the area.Type: GrantFiled: July 31, 2017Date of Patent: December 19, 2023Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Kristopher J. Erickson, Thomas C. Anthony
-
Patent number: 11451121Abstract: In a method for producing a material layer with a layer thickness between 0.5 and 500 ?m, a suspension with a binding agent and solid particles is applied through a template onto a base area for obtaining a green body. The binding agent is driven out of the green body and a permanent cohesion of the solid particles is created by heating and/or by compaction.Type: GrantFiled: July 10, 2019Date of Patent: September 20, 2022Assignee: Siemens AktiengesellschaftInventors: Reiner Seufert, Rolf Vollmer
-
Patent number: 8940816Abstract: 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: GrantFiled: June 27, 2013Date of Patent: January 27, 2015Assignee: Commissariat a l'Energie Atomique et aux Energies AlternativesInventors: Florence Servant, Pascal Tiquet
-
Patent number: 8932517Abstract: 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: GrantFiled: October 16, 2008Date of Patent: January 13, 2015Assignee: Magnetic Components Sweden ABInventor: Mats Alaküla
-
Publication number: 20150002255Abstract: 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: ApplicationFiled: June 27, 2014Publication date: January 1, 2015Inventors: Hak Kwan KIM, Sung Yong AN, Jae Yeong KIM, Jung Wook SEO
-
Patent number: 8916088Abstract: 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: GrantFiled: June 5, 2012Date of Patent: December 23, 2014Inventors: Mohammad Behi, Alexander Lobovsky
-
Patent number: 8845050Abstract: 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: GrantFiled: February 18, 2010Date of Patent: September 30, 2014Assignee: Sony CorporationInventors: Takeshi Matsui, Junichi Kuzusako, Hiroyuki Yasukochi
-
Publication number: 20140286817Abstract: 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: ApplicationFiled: January 9, 2013Publication date: September 25, 2014Inventors: Jinbae Kim, Jongryoul Kim, Sanggeun Cho, Namseok Kang
-
Publication number: 20140170014Abstract: 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: ApplicationFiled: May 1, 2013Publication date: June 19, 2014Applicants: KOREA INSTITUTE OF MACHINERY & MATERIALS, HYUNDAI MOTOR COMPANYInventors: Jae Ryung Lee, Ji Hun Yu, Jung Goo Lee
-
Publication number: 20140020881Abstract: 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: ApplicationFiled: September 16, 2013Publication date: January 23, 2014Applicant: Vacuumschmeize GmbH & Co. KGInventors: George Werner REPPEL, Matthias KATTER
-
Publication number: 20140023922Abstract: 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: ApplicationFiled: January 23, 2012Publication date: January 23, 2014Applicant: ZEON CORPORATIONInventors: Yasuhiro Isshiki, Yasuhiro Wakizaka
-
Publication number: 20130323111Abstract: 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: ApplicationFiled: February 21, 2011Publication date: December 5, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Noritaka Miyamoto, Tetsuya Shoji, Shinya Omura, Daisuke Ichigozaki, Akira Manabe
-
Publication number: 20130243637Abstract: 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: ApplicationFiled: March 13, 2013Publication date: September 19, 2013Applicant: Vacuumschmelze GmbH & Co. KGInventor: Matthias KATTER
-
Patent number: 8524147Abstract: 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: GrantFiled: March 27, 2008Date of Patent: September 3, 2013Assignees: Hiroshima University, Alloy Industries Co., Ltd.Inventors: Hiroyuki Suzuki, Yoshinobu Shimoitani
-
Patent number: 8496725Abstract: 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: GrantFiled: March 23, 2011Date of Patent: July 30, 2013Assignee: BASF SEInventors: Carsten Blettner, Jürgen Kaczun, Ria Kress, Dag Wiebelhaus
-
Patent number: 8496726Abstract: 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: GrantFiled: September 10, 2012Date of Patent: July 30, 2013Assignee: Mitsubishi Materials CorporationInventors: Takashi Yamaji, Yasuo Ido, Shinji Otani
-
Publication number: 20130064708Abstract: 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: ApplicationFiled: April 20, 2010Publication date: March 14, 2013Applicant: SECO TOOLS ABInventors: Regina Lundell, Per Jonson, Mattias Puide
-
Patent number: 8308841Abstract: 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: GrantFiled: January 28, 2011Date of Patent: November 13, 2012Assignee: Mitsubishi Materials CorporationInventors: Takashi Yamaji, Yasuo Ido, Shinji Otani
-
Publication number: 20120239162Abstract: 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: ApplicationFiled: September 9, 2011Publication date: September 20, 2012Applicant: BIO2 TECHNOLOGIES, INCInventor: James Jenq Liu
-
Method of manufacturing rare-earth magnet powder, and method of manufacturing rare-earth bond magnet
Publication number: 20120164019Abstract: 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: ApplicationFiled: May 12, 2008Publication date: June 28, 2012Inventor: Yoshibumi Nakamura -
Patent number: 8105443Abstract: 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: GrantFiled: April 25, 2007Date of Patent: January 31, 2012Assignee: Vacuumschmelze GmbH & Co.Inventors: Georg Werner Reppel, Volker Zellmann
-
Publication number: 20120009080Abstract: 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: ApplicationFiled: July 11, 2011Publication date: January 12, 2012Applicant: Climax Engineered Materials, LLCInventors: Matthew C. Shaw, Carl V. Cox, Yakov Epshteyn
-
Patent number: 8061025Abstract: 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: GrantFiled: December 14, 2010Date of Patent: November 22, 2011Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Seung Hyun Cho, Byoung Youl Min, Soon Jin Cho, Jin Won Choi
-
Patent number: 8062583Abstract: 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: GrantFiled: March 17, 2008Date of Patent: November 22, 2011Assignees: Hitachi Powdered Metals Co., Ltd., Denso CorporationInventors: Chio Ishihara, Kazuo Asaka, Kohei Muramatsu, Tsuyoshi Akao, Hirotake Hamamatsu
-
Publication number: 20110250089Abstract: 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: ApplicationFiled: January 28, 2011Publication date: October 13, 2011Applicant: MITSUBISHI MATERIALS CORPORATIONInventors: Takashi Yamaji, Yasuo Ido, Shinji Otani
-
Patent number: 8034153Abstract: 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: GrantFiled: December 21, 2006Date of Patent: October 11, 2011Assignee: Momentive Performances Materials, Inc.Inventors: Robert Marchiando, Jon Leist
-
Publication number: 20110209575Abstract: 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: ApplicationFiled: February 28, 2011Publication date: September 1, 2011Applicant: SEIKO EPSON CORPORATIONInventor: Takeshi KADOMURA
-
Publication number: 20110168363Abstract: 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: ApplicationFiled: December 27, 2007Publication date: July 14, 2011Inventors: Georg Werner Reppel, Matthias Katter
-
Publication number: 20110147208Abstract: 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: ApplicationFiled: March 2, 2011Publication date: June 23, 2011Applicant: Climax Engineered Materials, LLCInventors: Naresh Goel, Carl Cox, Dave Honecker, Eric Smith, Chris Michaluk, Adam DeBoskey, Sunil Chandra Jha
-
Patent number: 7914599Abstract: 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: GrantFiled: November 17, 2004Date of Patent: March 29, 2011Assignee: ISM, Inc.Inventors: Joseph L. Stein, Brian J Stein, John Beatty
-
Publication number: 20100297462Abstract: 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: ApplicationFiled: November 13, 2007Publication date: November 25, 2010Applicant: HOWMEDICA OSTEONICS CORP.Inventors: John Lapszynski, Robert W. Klein, Michael A. DeLuise
-
Patent number: 7785424Abstract: 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: GrantFiled: August 23, 2005Date of Patent: August 31, 2010Assignee: Nippon Kagaku Yakin Co., Ltd.Inventors: Kiyotaka Matsukawa, Kozo Ishihara, Kazuo Ishikawa, Tomohiro Toyoda, Toshikazu Tanaka
-
Publication number: 20100196734Abstract: 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: ApplicationFiled: October 8, 2009Publication date: August 5, 2010Applicants: H.C. Starck Inc.Inventors: Michael Svec, Karl-Hermann Buchner, Hans-Peter Baldus, Aloys Eiling, Jim Ryan
-
Patent number: 7758804Abstract: 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: GrantFiled: April 20, 2005Date of Patent: July 20, 2010Assignee: Höganäs ABInventors: Hilmar Vidarsson, Paul Skoglund, Sven Allroth, Ermin Imamovic
-
Patent number: 7721649Abstract: 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: GrantFiled: September 16, 2008Date of Patent: May 25, 2010Assignee: Baker Hughes IncorporatedInventors: Avigdor Hetz, Clarence W. Wendt, John D. Loehr, William B. Harvey, David Betancourt
-
Publication number: 20100116471Abstract: 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: ApplicationFiled: December 27, 2007Publication date: May 13, 2010Inventors: Georg Werner Reppel, Matthias Katter
-
Publication number: 20100075169Abstract: 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: ApplicationFiled: September 23, 2008Publication date: March 25, 2010Inventor: Xiaoyao Qiang
-
Patent number: 7682558Abstract: 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: GrantFiled: December 20, 2006Date of Patent: March 23, 2010Assignee: Höganäs AB (PUBL)Inventors: Per Knutsson, Per-Olof Larsson, Hilmar Vidarsson
-
Publication number: 20090267017Abstract: 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: ApplicationFiled: April 20, 2009Publication date: October 29, 2009Applicant: TDK CorporationInventors: Atsuhito Matsukawa, Katsuhiko Wakayama, Hideharu Moro, Naoyoshi Sato, Yoshihito Hirai, Toshihisa Murayoshi
-
Publication number: 20090242826Abstract: 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: ApplicationFiled: March 18, 2009Publication date: October 1, 2009Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kouichi Harada, Tomohiro Suetsuna, Seiichi Suenaga
-
Publication number: 20090232693Abstract: 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: ApplicationFiled: May 26, 2009Publication date: September 17, 2009Inventors: Zhichao Lu, Caowei Lu, Deren Li, Ko Sun, Shaoxiong Zhou
-
Publication number: 20090129966Abstract: 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: ApplicationFiled: March 22, 2006Publication date: May 21, 2009Applicant: Hitachi Metals, Ltd.Inventors: Hirokazu Kanekiyo, Toshio Miyoshi, Satoshi Hirosawa
-
Publication number: 20090127110Abstract: 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: ApplicationFiled: September 11, 2006Publication date: May 21, 2009Applicants: Mitsubishi Electric Corporation, IHI CorporationInventors: Hiroyuki Teramoto, Yukio Sato, Akihiro Suzuki, Akihiro Goto, Kazushi Nakamura
-
Publication number: 20090081067Abstract: 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: ApplicationFiled: September 12, 2008Publication date: March 26, 2009Inventor: Yoshibumi Nakamura
-
Publication number: 20090071361Abstract: 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: ApplicationFiled: September 16, 2008Publication date: March 19, 2009Applicant: BAKER HUGHES INCORPORATEDInventors: Avigdor Hetz, Clarence W. Wendt, John D. Loehr, William B. Harvey, David Betancourt
-
Publication number: 20090053094Abstract: 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: ApplicationFiled: July 14, 2006Publication date: February 26, 2009Applicant: NEOMAX CO., LTD.Inventors: Hideyuki Morimoto, Tomoori Odaka
-
Publication number: 20090032147Abstract: 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: ApplicationFiled: October 21, 2008Publication date: February 5, 2009Applicant: HITACHI METALS, LTD.Inventors: Noriyuki NOZAWA, Takeshi NISHIUCHI, Satoshi HIROSAWA, Tomohito MAKI
-
Publication number: 20080218007Abstract: 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: ApplicationFiled: December 19, 2005Publication date: September 11, 2008Applicant: HITACHI METALS, LTD.Inventors: Masahiro Masuzawa, Masahiro Mita, Keiko Kikuti
-
Publication number: 20080120889Abstract: 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: ApplicationFiled: July 3, 2006Publication date: May 29, 2008Inventors: Animesh Bose, Robert J. Dowding, Jeffrey J. Swab
-
Patent number: 7273527Abstract: 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: GrantFiled: November 2, 2006Date of Patent: September 25, 2007Assignees: Hitachi Powdered Metals Co., Ltd., Denso CorporationInventors: Chio Ishihara, Kazuo Asaka, Kei Ishii, Tamio Takada, Tsuyoshi Akao, Isao Makino