Powder Pretreatment (prior To Consolidation Or Sintering) Patents (Class 419/30)
  • Patent number: 11842832
    Abstract: A continuous method of manufacturing permanent magnets and the permanent magnets created thereby. A fine powder is created from a combination of magnetic metals. The powder (a metal alloy) is placed in a non-magnetic container of any desired shape which could be, for example, a tube. The metal alloy and tube are swaged while a magnetic field is applied. Once swaging is complete, the metal alloy and tube are sintered and then cooled. Instead of sintering, a bonding agent can mixed into the powder. Following cooling, the metal alloy is magnetized by placing it between poles of powerful electromagnets with the desired field direction. The process of the invention enables mass-produced, cost-effective PM products, which are more robust, easily assembled into products, enables new “wire like” shapes with arbitrary magnetization direction.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: December 12, 2023
    Assignee: Advanced Magnet Lab, Inc.
    Inventor: Rainer Meinke
  • Patent number: 11783972
    Abstract: The present application relates to a preparation method of neodymium iron boron products and the neodymium iron boron product prepared by using the same. The preparation method of neodymium iron boron products includes the following steps: Step S1: preparing blank magnet; Step S2: obtaining preprocessed sheets; Step S3: surface treating; Step S4: heavy rare earth coating; Step S5: stacking: stacking a plurality of preprocessed sheets to give stacked magnets; and Step S6: grain boundary diffusion: successively subjecting the stacked magnets to a primary heat treatment for 2-40 min, a secondary heat treatment at 700-1000° C. for 4-40 h, and then tempering at 450-700° C., in which the primary heat treatment is induction heat treatment or electric spark sintering.
    Type: Grant
    Filed: November 11, 2021
    Date of Patent: October 10, 2023
    Assignees: Hangzhou Magmax Technology Co., Ltd., Hangzhou Foresee Group Holding Co., Ltd.
    Inventors: Jinghui Di, Qifeng Wei, Shujun Shen, Shengli Jia, Lichun Zhan, Pengfei Ge
  • Patent number: 11773470
    Abstract: A method for producing a high temperature component includes a shaping step of shaping a powder compact of a desired high temperature component shape using a specific powder shaping method, from an alloy powder of ?? precipitation strengthening-type Ni-based alloy, and a crystal grain coarsening step of coarsening a crystal grain size of the powder compact by heat treatment, wherein the powder compact contains 0.002% or more and 0.07% or less of C, and 5.40% or more and 8.40% or less of Al+Ti by mass percentage.
    Type: Grant
    Filed: May 9, 2022
    Date of Patent: October 3, 2023
    Inventors: Shinya Hibino, Kazushige Fujimitsu, Yoshimichi Nomura, Ryutaro Okada
  • Patent number: 11705557
    Abstract: Various embodiments include fuel cell interconnects having a fuel distribution portion having an inlet opening, a fuel collection portion having an outlet opening, and a primary fuel flow field containing channels, wherein the fuel distribution portion comprises at least one raised feature defining a fuel distribution flow path, and the fuel distribution flow path is not continuous with the channels in the primary fuel flow field. The at least one raised feature may include, for example, a network of ribs and/or dots. Further embodiments include interconnects having a fuel distribution portion with a variable surface depth to provide variable flow restriction and/or a plenum with variable surface depth and raised a raised relief feature on the cathode side, and/or varying flow channel depths and/or rib heights adjacent a fuel hole.
    Type: Grant
    Filed: May 19, 2021
    Date of Patent: July 18, 2023
    Inventors: Daniel Darga, Cheng-Yu Lin, Vijay Srivatsan
  • Patent number: 11633911
    Abstract: A printing apparatus is for printing a three-dimensional object. The apparatus includes an operative surface, an energy source for emitting at least one energy beam onto the operative surface and a powder dispensing mechanism for depositing powder onto the operative surface, the powder being adapted to be melted by the or each energy beam. The powder dispensing mechanism is configured to deposit multiple layers of powder onto the operative surface simultaneously.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: April 25, 2023
    Assignee: Aurora Labs Limited
    Inventor: David Budge
  • Patent number: 11331850
    Abstract: A method for manufacturing a shaped article includes a step of providing a high-speed steel powder, a step of forming a powder layer by spreading the powder, a step of forming a solidified layer in which the powder is in a bound state by irradiating the powder layer with a scanning laser beam, and a step of stacking up solidified layers by sequentially repeating the step of forming a powder layer and the step of forming a solidified layer, thereby forming the shaped article. The laser beam has an energy density of 60 J/mm3 or more and less than 600 J/mm3.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: May 17, 2022
    Inventors: Hiroaki Motoyama, Takanori Ootaki
  • Patent number: 11148202
    Abstract: Methodologies, systems, and devices are provided for producing metal spheroidal powder products. Dehydrogenated and spheroidized particles are prepared using a process including introducing a metal hydride feed material into a plasma torch. The metal hydride feed material is melted within a plasma in order to dehydrogenate and spheroidize the materials, forming dehydrogenated and spheroidized particles. The dehydrogenated and spheroidized particles are then exposed to an inert gas and cooled in order to solidify the particles into dehydrogenated and spheroidized particles. The particles are cooled within a chamber having an inert gas.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: October 19, 2021
    Assignee: 6K Inc.
    Inventors: Kamal Hadidi, Gregory Wrobel, Makhlouf Redjdal
  • Patent number: 11097456
    Abstract: The present invention discloses a preparation method for a hollow radiator and a hollow radiator. The preparation method comprises the following steps: 1) providing a feed and an insert raw material; 2) molding the insert raw material into an insert; 3) placing the insert in a cavity of a mold, and filling the cavity with the feed by injection molding in such a manner that the insert is surrounded by the feed, thereby obtaining a green body with the insert; 4) performing debinding treatment on the green body with the insert to remove the insert, thereby obtaining the green body of a hollow structure; and 5) sintering the green body to obtain the hollow radiator. By the preparation method for a hollow radiator according to the present invention, a radiator of a complex hollow structure can be fabricated, and the heat dissipation effect of the radiator can be improved. Moreover, the airtightness and leakproofness of the radiator can be guaranteed for a long time.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: August 24, 2021
    Inventors: Mingke Chen, Fong Seng Lim, Kia Gie Foo
  • Patent number: 11091283
    Abstract: This invention relates generally to the packaging and preservation of granular products. More specifically, the invention relates to an apparatus and method for flushing undesirable residual gases from a flow of granular product during a packaging of the product, the displacement of the undesirable gases from the product preserving the product's freshness.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: August 17, 2021
    Inventor: David Nowaczyk
  • Patent number: 11004600
    Abstract: A method includes mixing first and second alloys to form a mixture, pressing the mixture within a first magnetic field to form a magnet having anisotropic particles of the first alloy aligned with a magnetic moment of the magnet, and heat treating the magnet within a second magnetic field to form elongated grains from the second alloy and align the elongated grains with the moment.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: May 11, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Wanfeng Li, Feng Liang, Michael W. Degner
  • Patent number: 10695840
    Abstract: Disclosed are an MnBi sintered magnet exhibiting excellent thermal stability as well as excellent magnetic characteristics at high temperature, an MnBi anisotropic complex sintered magnet, and a method of preparing the same.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: June 30, 2020
    Inventors: Jinbae Kim, Yangwoo Byun
  • Patent number: 10688558
    Abstract: A setter assembly for use in additive manufacturing a binder-jet part includes a base, a first setter component having a first setter portion and a second setter portion that may be removably coupled to the first setter portion and a plurality of protrusions disposed on and extending away from a surface of the base. The plurality of protrusions may align the base with the first setter component and enable coupling of the first setter component to the base. The setter assembly also includes a second setter component positioned between the base and the first setter component. The second setter component is disposed on the surface and the first setter component, the second setter component, and the base can be assembled onto a printed part such that at least a portion of the printed part is nested between the first setter component and the second setter component.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: June 23, 2020
    Inventors: Ananda Barua, Sathyanarayanan Raghavan, Ken Salas Nobrega, Vadim Bromberg, Arunkumar Natarajan
  • Patent number: 10252338
    Abstract: In S102, after preforming a pressed powder member by compressing metal powder filled in a press-forming portion, the pressed powder member and metal member are slid to each other in S103. In S104, after temporarily joining the pressed powder member and the metal member by further pressurizing the powder member, the temporary joined pressed powder member and the metal member are sintered in a sintering furnace, and the pressed powder member and the metal member are joined by sintering diffusion in S105. Thereby, joining areas between the pressed powder member and the metal member are increased, and it is possible to improve a joining strength between the pressed powder member and the metal member.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: April 9, 2019
    Inventors: Eiichi Kobayashi, Kunihiro Kodama, Masashi Totokawa
  • Patent number: 9938802
    Abstract: An apparatus for installation in a borehole comprises a well component and a sleeve. The well component has a through-bore and is permeable to the borehole. For example, the well component can be a well screen having a perforated basepipe with a filter disposed thereabout or can be a liner defining a plurality of openings therein. The sleeve is disposed external to the well component. The sleeve is at least temporarily impermeable to obstruct the well component during run in the borehole and becomes permeable in response to an agent, such as a hydrochloric acid, a hydrofluoric acid, an acid stimulation, a wellbore fluid, or a drilling fluid, for example.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: April 10, 2018
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: John S. Sladic, Floyd R. Simonds, Paul Day
  • Patent number: 9637811
    Abstract: An iron-based sintered sliding member consists of, by mass %, 0.1 to 10% of Cu, 0.2 to 2.0% of C, 0.03 to 0.9% of Mn, 0.52 to 6.54% of S, and the balance of Fe and inevitable impurities. The iron-based sintered sliding member satisfies the following First Formula in which [S %] represents mass % of S and [Mn %] represents mass % of Mn in the overall composition. The iron-based sintered sliding member exhibits a metallic structure in which pores and sulfide particles are dispersed in the matrix that includes a martensite structure at not less than 50% by area ratio in cross section. The sulfide particles are dispersed at 3 to 30 vol. % with respect to the matrix. [S %]=0.6×[Mn %]+0.5 to 6.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: May 2, 2017
    Inventors: Daisuke Fukae, Hideaki Kawata, Hidekazu Tokushima
  • Patent number: 9076584
    Abstract: Provided are a powder for a magnet, which provides a rare-earth magnet having excellent magnet properties and which has excellent formability, a method for producing the powder for a magnet, a powder compact, a rare-earth-iron-based alloy material, and a rare-earth-iron-nitrogen-based alloy material which are used as materials for the magnet, and methods for producing the powder compact and these alloy materials. Magnetic particles 1 constituting the powder for a magnet each have a texture in which grains of a phase 3 of a hydride of a rare-earth element are dispersed in a phase 2 of an iron-containing material, such as Fe. The uniform presence of the phase 2 of the iron-containing material in each magnetic particle 1 results in the powder having excellent formability, thereby providing a powder compact 4 having a high relative density.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: July 7, 2015
    Inventor: Toru Maeda
  • Publication number: 20150139848
    Abstract: This thermoelectric material manufacturing method includes the steps of: preparing a powder from an at least binary thermoelectric alloy (AxB1-x) intended to be used as a matrix; mixing the powder with nanoparticles of pure metal (M) intended to form inclusions in the matrix; and submitting the mixture to a step of sintering at an adapted temperature resulting in the forming, in the matrix, of nanometric inclusions of composition MaAb and/or MaBb.
    Type: Application
    Filed: November 20, 2014
    Publication date: May 21, 2015
    Inventors: Mathieu SOULIER, Maya MARINOVA-ATANAS, Natalio MINGO BISQUERT, Christelle NAVONE, Amandine NERI
  • Publication number: 20150122302
    Abstract: According to an embodiment, a thermoelectric conversion material is made of a polycrystalline material which is represented by a composition formula (1) shown below and has a MgAgAs type crystal structure. The polycrystalline material includes a MgAgAs type crystal grain having regions of different Ti concentrations. (AaTib)cDdXe??Composition formula (1) wherein 0.2?a?0.7, 0.3?b?0.8, a+b=1, 0.93?c?1.08, and 0.93?e?1.08 hold when d=1; A is at least one element selected from the group consisting of Zr and Hf, D is at least one element selected from the group consisting of Ni, Co, and Fe, and X is at least one element selected from the group consisting of Sn and Sb.
    Type: Application
    Filed: January 15, 2015
    Publication date: May 7, 2015
    Inventor: Takao SAWA
  • Patent number: 9017599
    Abstract: There is provided a sliding part in which a surface coverage ratio of copper in the sliding part increases. A bearing which is the sliding part is formed by filling the raw powder into the filling portion of the forming mold, compacting the raw powder to form a powder compact, which is sintered. A copper-based raw powder is composed of a copper-based flat raw powder whose diameter is smaller than that of an iron-based raw powder and an aspect ratio larger than that of the iron-based raw powder, and a copper-based small-sized raw powder whose diameter is smaller than that of the copper-based flat raw powder. The copper is allowed to segregate at the surface of the sliding part. The surface of the bearing is covered with the copper-based small-sized raw powder and the copper-based flat raw powder, thereby the surface coverage ratio of copper can be increased.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: April 28, 2015
    Assignee: Diamet Corporation
    Inventors: Teruo Shimizu, Tsuneo Maruyama
  • Patent number: 8999229
    Abstract: Disclosed herein is a sintered composition comprising iron; about 0.05 to about 1 wt % molybdenum; about 3 to about 4.5 wt % silicon; about 0.05 to about 0.5 wt % chromium; about 0.011 to about 0.015 wt % magnesium; all weight percents being based on the total weight of the composition; the composition being devoid of carbon except for trace amounts; and wherein the composition is sintered. Disclosed herein too is a method comprising blending a powdered composition that comprises iron; about 0.05 to about 1 wt % molybdenum; about 3 to about 4.5 wt % silicon; about 0.05 to about 0.5 wt % chromium; about 0.011 to about 0.015 wt % magnesium; all weight percents being based on the total weight of the composition; the composition being devoid of carbon except for trace amounts; compacting and sintering the composition.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: April 7, 2015
    Assignee: Alpha Sintered Metals, Inc.
    Inventors: Thomas J. Cornelio, Leonid I. Frayman, Thomas E. Haberberger
  • Patent number: 8992828
    Abstract: A method for manufacturing a high ductility Ti-, Ti-alloy or NiTi-foam, meaning a compression strain higher than 10%, includes: preparing a powder suspension of a Ti-, NiTi- or Ti-alloy powder, bringing the said powder suspension into a desired form by gelcasting to form a green artifact. The method also includes a calcination step wherein the green artifact is calcined, and sintering the artifact. The calcination step includes a slow heating step wherein said green artifact is heated at a rate lower or equal to 20° C./hour to a temperature between 400° C. and 600° C. and the Ti-, NiTi- or Ti-alloy powder has a particle size less than 100 ?m. A high ductility Ti-, Ti-alloy or NiTi foam, with a compression higher than 10%, with a theoretical density less than 30%, pore size (cell size) between 50 to 1000 ?m can be obtained with such a method.
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: March 31, 2015
    Assignee: Vlaamse Instelling Voor Technologisch Onderzoek (VITO)
    Inventors: Steven Mullens, Ivo Thijs, Jozef Cooymans, Jan Luyten
  • Patent number: 8961867
    Abstract: Refractory metal powders are dehydrided in a device which includes a preheat chamber for retaining the metal powder fully heated in a hot zone to allow diffusion of hydrogen out of the powder. The powder is cooled in a cooling chamber for a residence time sufficiently short to prevent re-absorption of the hydrogen by the powder. The powder is consolidated by impact on a substrate at the exit of the cooling chamber to build a deposit in solid dense form on the substrate.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: February 24, 2015
    Assignee: H.C. Starck Inc.
    Inventors: Steven A. Miller, Mark Gaydos, Leonid N. Shekhter, Gokce Gulsoy
  • Patent number: 8911662
    Abstract: A powder for use in the powder metallurgical manufacture of components is provided. Particularly the subject matter concerns an iron or iron based powder intended for the powder metallurgical manufacturing of components. It is especially suitable for manufacturing of components wherein self-lubricating properties are desired. The subject matter further relates to a method of manufacturing a component from said powder and an accordingly produced component. A diffusion-bonded powder comprising iron or iron-based particles, and particles diffusion-bonded to the iron or iron-based particles is provided. The said particles diffusion-bonded to the iron or iron-based particles may comprise an alloy of Cu and 5% to 15% by weight of Sn. A component is provided which is at least partly formed from such a diffusion-bonded powder.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: December 16, 2014
    Assignee: Hoganas AB
    Inventor: Mats Larsson
  • Publication number: 20140356218
    Abstract: A method for producing a high speed steel that with reference to its chemical composition consists of the following elements: 1-3 wt-% carbon (C), 3-6 wt-% chromium (Cr), 0-7 wt-% molybdenum (Mo), 0-15 wt-% tungsten (W), 3-14 wt-% vanadium (V), 0-10 wt-% cobalt (Co), 0-3 wt-% niobium (Nb), 0-0.5 wt-% nitrogen (N), 0.2-1 wt-% yttrium (Y), and remainder iron (Fe) and unavoidable impurities, and wherein Mo+0.5W=2-10 weight %, characterized in that the method comprises the steps of: providing a powder comprising the elements of the high speed steel, forming a body of the powder, and subjecting the body to elevated heat and pressure such that a consolidation of the powder thereof is achieved.
    Type: Application
    Filed: September 19, 2012
    Publication date: December 4, 2014
    Inventor: Tomas Berglund
  • Publication number: 20140334963
    Abstract: A titanium metal or a titanium alloy having submicron titanium boride substantially uniformly dispersed therein and a method of making same is disclosed. Ti power of Ti alloy powder has dispersed within the particles forming the powder titanium boride which is other than whisker-shaped or spherical substantially uniformly dispersed therein.
    Type: Application
    Filed: July 28, 2014
    Publication date: November 13, 2014
    Applicant: Cristal Metals Inc.
    Inventors: Lance Jacobsen, Adam Benish
  • Publication number: 20140286814
    Abstract: A composite magnetic material includes metal magnetic powder and thermosetting resin. The metal magnetic powder includes first metal magnetic powder and second metal magnetic powder. The first metal magnetic powder includes iron and a first element with oxygen affinity higher than that of iron. The second metal magnetic powder includes at least iron. The second metal magnetic powder also includes the first element for an amount smaller than the first element contained in the first metal magnetic powder, or not include the first element. A mean particle diameter of the first metal magnetic powder is greater than a mean particle diameter of the second metal magnetic powder. The second metal magnetic powder is 10 weight % to 30 weight % of the total amount of the metal magnetic powder. This composite magnetic material can secure high magnetic permeability and also improve withstand voltage.
    Type: Application
    Filed: November 14, 2012
    Publication date: September 25, 2014
    Inventors: Junichi Kotani, Nobuya Matsutani
  • Patent number: 8840833
    Abstract: A component, such as a SOFC interconnect, and methods of making the component are provided using various chromium powders, including powder particles with a chromium core covered with an iron shell, a pre-alloyed Cr—Fe powder or a chromium powder produced by hydrogen reduction with hydrogen.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: September 23, 2014
    Assignee: Bloom Energy Corporation
    Inventors: Martin Janousek, Shivanand I. Majagi
  • Publication number: 20140271325
    Abstract: Provided in one embodiment is a method, comprising: sintering a plurality of nanocrystalline particulates to form a nanocrystalline alloy, wherein at least some of the nanocrystalline particulates may include a non-equilibrium phase comprising a first metal material and a second metal material, and the first metal material may be soluble in the second metal material. The sintered nanocrystalline alloy may comprise a bulk nanocrystalline alloy.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Inventors: Christopher A. Schuh, Mansoo Park
  • Patent number: 8821786
    Abstract: A method of forming an oxide-dispersion strengthened alloy and a method for forming an oxide-alloy powder where the oxide-nanoparticles are evenly distributed throughout the powder. The method is comprised of the steps of forming an oxide-nanoparticles colloid, mixing the oxide-nanoparticles colloid with alloy-microparticles forming an oxide-alloy colloid, drying the oxide-alloy colloid solution to form an oxide-alloy powder, applying pressure to the oxide-alloy powder, and heating the oxide-alloy powder to a sintering temperature. The oxide-nanoparticles are sized to be between 1-10 nanometers in diameter. The ratio of oxide-nanoparticles to alloy-microparticles should be 1-5% by weight. Heating of the oxide-alloy powder can use a spark plasma sintering process.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: September 2, 2014
    Assignee: SDCmaterials, Inc.
    Inventor: Maximilian A. Biberger
  • Publication number: 20140236155
    Abstract: A method for producing a medical implant, such as a bone screw, a bone nail, a bone pin, a plate, a suture anchor, etc. for fastening soft parts, such as tendons, muscles, and ligaments, to a bone, or in the form of an endoprosthesis or at least a part thereof, from a magnesium alloy having a magnesium fraction of at least 80 wt %, in particular of at least 90 wt %, including the following steps: a) melting the magnesium alloy to obtain an alloy melt, b) atomizing the alloy melt under a protective-gas atmosphere and cooling the atomized alloy melt to below the solidification point thereof in order to obtain an alloy powder, c) shaping the alloy powder by pressing to obtain an alloy green body, d) extruding the alloy green body to obtain a magnesium alloy molded part, and e) producing the medical implant from the magnesium alloy molded part.
    Type: Application
    Filed: August 28, 2012
    Publication date: August 21, 2014
    Applicant: SYNTELLIX AG
    Inventors: Volkmar Neubert, Robert Schavan
  • Publication number: 20140225696
    Abstract: The invention relates to a method for producing a magnetic material, said magnetic material consisting of a starting material that comprises a rare earth metal (SE) and at least one transition metal. The rare earth metal content is 15 to 20 wt. %, and the method has the following steps:—hydrogenating the starting material,—disproportioning the starting material,—desorption, and—recombination. A soft magnetic material is added after the starting material is disproportioned.
    Type: Application
    Filed: June 20, 2012
    Publication date: August 14, 2014
    Applicant: ROBERT BOSCH GmbH
    Inventors: Konrad Güth, Oliver Gutfleisch
  • Publication number: 20140212685
    Abstract: Disclosed herein is an engine 52, in particular a combustion engine or a jet-power unit, or an engine part 54, 56 made from metal, and in particular Al or Mg, or an alloy comprising one or more thereof.
    Type: Application
    Filed: March 31, 2014
    Publication date: July 31, 2014
    Applicant: Bayer International SA
    Inventors: Henning Zoz, Michael Dvorak, Horst Adams
  • Patent number: 8790438
    Abstract: A colored metal composite including a metal matrix; and colored particles distributed throughout the metal matrix AND/OR a method including providing metal powder as a first phase of a composite; providing colored particles to form a second phase of the composite; mixing the metal powder and colored particles; and sintering the metal powder around the colored particles to form a metal matrix that has colored particles distributed throughout.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: July 29, 2014
    Assignee: Nokia Corporation
    Inventors: Caroline Elizabeth Millar, Stuart Paul Godfrey
  • Publication number: 20140199202
    Abstract: The present invention is directed to a method of manufacture of metal or alloy powders that uses liquid phase reduction of a metal halide, or a mixture of metal halides, to produce a metal particle coated in salts produced as a reaction byproduct. The reaction conditions can be chosen to select a range of metal particle sizes, and the salt coating prevents oxidation (or reaction with other atmospheric gases) and permits a range of applications hitherto difficult to achieve using metal powders.
    Type: Application
    Filed: March 17, 2014
    Publication date: July 17, 2014
    Applicant: Boston Electronic Materials, LLC
    Inventor: Andrew Matheson
  • Publication number: 20140195001
    Abstract: High strength implantable devices having complex surfaces are injection molded from powder metal wherein the surface is defined by a monolithic insert made by additive manufacturing. The insert defines the surface texture of the device and may also include a portion to form an ingrowth texture and a portion to form a substrate interface texture. The tensile bond strength of the texture is 20 Mega Pascal or greater.
    Type: Application
    Filed: January 8, 2014
    Publication date: July 10, 2014
    Applicant: Praxis Power Technology, Inc.
    Inventor: Joseph A. Grohowski, JR.
  • Publication number: 20140048414
    Abstract: Provided are a sputtering target which has excellent machinability and is capable of forming a compound film that mainly contains Cu and Ga and a method for producing the sputtering target. The sputtering target of the present invention has a component composition that contains 20 to 40 at % of Ga, 0.1 to 3 at % of Sb, and the balance composed of Cu and unavoidable impurities. A method for producing the sputtering target includes a step of producing a starting material powder that is obtained by pulverizing at least Cu, Ga and Sb as simple substances or an alloy that contains two or more of these elements; and a step of subjecting the starting material powder to hot processing in a vacuum, in an inert atmosphere or in a reducing atmosphere, wherein Ga is contained in the starting material powder in the form of a Cu—Ga alloy or in the form of a Ga—Sb alloy.
    Type: Application
    Filed: April 20, 2012
    Publication date: February 20, 2014
    Applicant: Mitsubishi Materials Corporation
    Inventors: Shoubin Zhang, Masahiro Shoji
  • Publication number: 20130343946
    Abstract: A method for manufacturing a sintered rare-earth magnet having a magnetic anisotropy, in which a very active powder having a small grain size can be safely used in a low-oxidized state. A fine powder as a material of the sintered rare-earth magnet having a magnetic anisotropy is loaded into a mold until its density reaches a predetermined level. Then, in a magnetic orientation section, the fine powder is oriented by a pulsed magnetic field. Subsequently, the fine powder is not compressed but immediately sintered in a sintering furnace. A multi-cavity mold for manufacturing a sintered rare-earth magnet having an industrially important shape, such as a plate magnet or an arched plate magnet, may be used.
    Type: Application
    Filed: August 26, 2013
    Publication date: December 26, 2013
    Inventors: Masato SAGAWA, Hiroshi NAGATA, Osamu ITATANI
  • Publication number: 20130343945
    Abstract: A titanium metal or a titanium alloy having submicron titanium boride substantially uniformly dispersed therein and a method of making same is disclosed. Ti power of Ti alloy powder has dispersed within the particles forming the powder titanum boride which is other than whisker-shaped or spherical substantially uniformly dispersed therein.
    Type: Application
    Filed: December 6, 2012
    Publication date: December 26, 2013
    Applicant: CRISTAL METALS INC.
    Inventors: Amy Simpson, Cristal Metals Inc.
  • Publication number: 20130318989
    Abstract: An apparatus for manufacturing an article from powder material including a first table, a second table rotatably mounted on the first table about a first axis and a third table rotatably mounted on the second table about a second axis. A hollow canister is supported by the third table. A vibrator is arranged to vibrate the canister. A first device is arranged to rotate the second table about the first axis and a second device is arranged to rotate the third table about the second axis. A hopper is arranged to supply powder material into the canister and a valve controls the flow of powder material from the hopper into the canister. A processor is arranged to control the valve, the vibrator, the first device and the second device to control the filling and packing density of the canister.
    Type: Application
    Filed: May 16, 2013
    Publication date: December 5, 2013
    Inventors: Christopher HOOD, Daniel CLARK
  • Publication number: 20130266470
    Abstract: For near net shape manufacturing of high-temperature resistant engine components of geometrically complex design consisting of an intermetallic phase, a low melting-point metallic phase in the molten state or in a temperature range near the molten state is mixed with a high melting-point metallic phase provided as a metal powder, and the mixture is mechanically treated under the effect of kneading and shear forces, thereby heating it up and reducing its viscosity. In a subsequent injection moulding process the engine component substantially matching the final contour is formed and mechanically finish-machined, if required, and afterwards subjected to a heat treatment for creating an intermetallic phase.
    Type: Application
    Filed: November 18, 2011
    Publication date: October 10, 2013
    Inventors: Dan Roth-Fagaraseanu, Alexander Schult
  • Publication number: 20130266469
    Abstract: For near net shape manufacturing of a high-temperature resistant component of complex design a high melting-point part of an intermetallic phase provided as a metal powder is mixed with a binder, and from the feedstock such formed a green compact substantially matching the final contour is produced by metal injection moulding, into the pores of said compact that remain after removal of the binder the low melting-point part of the intermetallic phase is infiltrated. The brown compact thereby created is mechanically processed, if required, and subjected to a specific heat treatment depending on the metallic phases used in order to create the intermetallic phase. This permits engine components consisting of intermetallic phases and having a geometrically complex structure to be manufactured cost-efficiently.
    Type: Application
    Filed: November 18, 2011
    Publication date: October 10, 2013
    Applicant: Rolls Royce Deutschland Ltd & Co KG
    Inventors: Dan Roth-Fagaraseanu, Alexander Schult
  • 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: 8460603
    Abstract: An object of the present invention is to provide an electrical discharge surface treatment-purpose electrode that stabilizes properties and a film-forming rate of a coating made by surface treatment that uses the electrode showing a narrow distribution in physical properties such as a composition and resistance. A method of manufacturing an electrical discharge surface treatment-purpose electrode according to the present invention is identified as a method of manufacturing an electrical discharge surface treatment-purpose electrode formed of a green compact made of a metal powder subjected to compression molding, characterized in that the method includes the step of forming a nitride coating by nitriding a surface of the metal powder, and the step of forming a green compact by subjecting the metal powder having its surface nitrided to compression molding.
    Type: Grant
    Filed: April 13, 2009
    Date of Patent: June 11, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kazuhiro Shigyo, Yoshikazu Nakano
  • Publication number: 20130140159
    Abstract: A process for producing a Cu—Cr material by powder metallurgy for a switching contact, in particular for vacuum switches, includes the steps of pressing a Cu—Cr powder mixture formed from Cu powder and Cr powder and sintering the pressed Cu—Cr powder mixture to form the material of the Cu—Cr switching contact. The sintering or a subsequent thermal treatment process is carried out with an alternating temperature profile, in which the Cu—Cr powder mixture or the Cu—Cr material is heated above an upper temperature limit value and cooled again below a lower temperature limit value at least twice in alternation. All of the steps are carried out at temperatures at which no molten phase forms.
    Type: Application
    Filed: August 1, 2011
    Publication date: June 6, 2013
    Inventors: Claudia Kowanda, Frank Müller
  • Publication number: 20130142690
    Abstract: A safe and industrially advantageous production method is disclosed for producing a rare earth-Mg—Ni based hydrogen storage alloy which realizes production of a nickel-hydrogen rechargeable battery having excellent cycle characteristics and a large capacity. The method is for producing a rare earth-Mg—Ni based hydrogen storage alloy including element A, Mg, and element B, wherein element A is composed of at least one element R selected from rare earth elements including Sc and Y, and optionally at least one element selected from Zr, Hf, and Ca, and element B is composed of Ni and optionally at least one element selected from elements other than element A and Mg. The method includes first step of mixing an alloy consisting of elements A and B and Mg metal and/or a Mg-containing alloy having a melting point not higher than the melting point of Mg metal, and second step of heat-treating a mixture obtained from first step for 0.5 to 240 hours at a temperature 5 to 250° C.
    Type: Application
    Filed: June 24, 2011
    Publication date: June 6, 2013
    Inventors: Takayuki Otsuki, Toshio Irie
  • Publication number: 20130136647
    Abstract: The invention relates to a method for producing powder-metallurgical steel. Said method consists of the following steps: a steel powder, preferably having a predetermined structure, is produced; the steel powder is mixed with a binding agent to form a plastically deformable raw material; the raw material is initially shaped to form a blank having a predefined spatial form; and the blank is sintered.
    Type: Application
    Filed: November 1, 2012
    Publication date: May 30, 2013
    Applicant: GUEHRING OHG
    Inventor: Guehring OHG
  • Patent number: 8449816
    Abstract: A composition suitable for use as a target containing antimony to be irradiated by accelerated charged particles (e.g., by protons to produce tin-117m) comprises an intermetallic compound of antimony and titanium which is synthesized at high-temperature, for example, in an arc furnace. The formed material is powdered and melted in an induction furnace, or heated at high gas pressure in gas static camera. The obtained product has a density, temperature stability, and heat conductivity sufficient to provide an appropriate target material.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: May 28, 2013
    Assignee: Brookhaven Science Associates
    Inventors: Yurii D. Seropeghin, Boris L. Zhuikov
  • Publication number: 20130121869
    Abstract: A process for fabricating sintered, substantially pore-free titanium aluminide articles with minor alloying element additions is disclosed. Such articles may find application as automobile engine valves and connecting rods and may be fabricated by rapidly sintering intimately mixed powders of substantially pure titanium and rapidly-cooled particles of aluminum alloyed with the minor alloying element(s).
    Type: Application
    Filed: November 10, 2011
    Publication date: May 16, 2013
    Inventors: Kaustubh Narhar Kulkarni, Anil K. Sachdev
  • Publication number: 20130101456
    Abstract: The invention pertains to a method for producing molded articles based on aluminum alloys by metal injection molding, comprising the following steps: a) producing a feed-stock by mixing the metals contained in the desired alloy in the form of metal powders and/or one or more metal alloy powders with a binder; b) producing a green body by injection molding said feedstock; c) producing a brown body by at least partially removing the binder from the green body by catalytic and/or solvent and/or thermal debinding; d) sintering the at least partially debound brown body to obtain the desired molded article; characterized in that, in step c), the binder is completely removed, wherein thermal debinding is carried out to remove the (residual) binder, optionally after having carried out one or more previous debinding steps, said thermal debinding being carried out in an atmosphere containing at least 0.5% by volume of oxygen, whereafter the thus obtained, completely debound brown body is sintered.
    Type: Application
    Filed: March 31, 2011
    Publication date: April 25, 2013
    Applicants: Technische Universitat Wien, Rubert Fertinger GMBH, BASF SE
    Inventors: Herbert Danninger, Christian Gierl, Branislav Zlatkov, Johan Ter Maat
  • Patent number: 8409498
    Abstract: A sputter target material which is of a sintered material, wherein the sputter target material consists of 0.5 to 50 atomic % in total of at least one metal element (M) selected from the group of Ti, Zr, V, Nb and Cr, and the balance of Mo and unavoidable impurities, and has a microstructure seen at a perpendicular cross section to a sputtering surface, in which microstructure oxide particles exist near a boundary of each island of the metal element (M), and wherein the maximum area of the island, which is defined by connecting the oxide particles with linear lines so as to form a closed zone, is not more than 1.0 mm2.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: April 2, 2013
    Assignee: Hitachi Metals, Ltd.
    Inventors: Keisuke Inoue, Tsuyoshi Fukui, Shigeru Taniguchi, Norio Uemura, Katsunori Iwasaki, Kazuya Saitoh