Processes Patents (Class 420/590)
  • Patent number: 10145615
    Abstract: A structure of composite crucibles and a high temperature adiabatic method in an arc heating process are disclosed. The structure may include a conventional water-cooled copper platform on which one or more graphite platform(s) are disposed and the topmost graphite platform is configured for disposing one or more metallic specimen(s). When arc smelts the metallic specimen(s) in the furnace in vacuum, and the heat of the metallic specimen(s) is transferred to the graphite platform, the graphite platform can reduce heat loss and improve heat preservation so as to cause the metallic specimen(s) to remain stable for the process of heating and melting to complete. The heat of the graphite platform is further transferred to the copper platform for lowering the temperature of the graphite platform.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: December 4, 2018
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventor: Swe-Kai Chen
  • Patent number: 9302319
    Abstract: Described herein is a feedstock including a core comprising BMG and a sheath attached the core. The sheath has a different physical property, a different chemical property or both from the core. Alternatively, the feedstock can include a sheath that encloses one or more core comprising BMG. The feedstock can be manufactured by attaching the sheath to the core, shot peening the core, etching the core, ion implanting the core, or applying a coating to the core, etc. The feedstock can be used to make a part by injection molding. The sheath can be used to adjust the composition of the core to reach the composition of the part.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: April 5, 2016
    Assignee: Apple Inc.
    Inventors: Christopher D. Prest, Joseph C. Poole, Joseph Stevick, Theodore Andrew Waniuk, Quoc Tran Pham
  • Patent number: 9121085
    Abstract: A method for manufacturing a composite metal alloy. An Mg material as an alloy base material and a carbon nanomaterial are mixed together to obtain a mixture in which the Mg material is covered with particles of the carbon nanomaterial. The mixture of the Mg material and carbon nanomaterial are sintered to obtain an Mg sintered compact including the carbon nanomaterial. The Mg sintered compact including the carbon nanomaterial is dissolved to obtain a melt of the composite metal alloy.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: September 1, 2015
    Assignee: NISSEI PLASTIC INSDUSTRIAL CO., LTD.
    Inventors: Atsushi Kato, Tomoyuki Sato, Kelta Arai, Daisuke Shiba, Masashi Suganuma
  • Patent number: 9095903
    Abstract: Methods and compositions are disclosed for preparation of both open and closed nanowire metal rings. Such rings may be used in conductive layers of electronic devices.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: August 4, 2015
    Assignee: Carestream Health, Inc.
    Inventors: David R. Whitcomb, Junping Zhang
  • Patent number: 8980170
    Abstract: Methods of producing metal nanowires, compositions, and articles are disclosed. Such methods allow production of metal nanowires with reproducibly uniform diameter and length, even in the presence of catalyst concentration variation. Such metal nanowires are useful for electronics applications.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: March 17, 2015
    Assignee: Carestream Health, Inc.
    Inventors: David R. Whitcomb, William D. Ramsden, Doreen C. Lynch
  • Patent number: 8906131
    Abstract: Metallic iron is produced from a composition formed from a mixture of iron ore particles and particles of a reductant made of a biomass material, a coal or coke in a particulate form together with a flux and is processed in a loose, un-agglomerated non-pelletized, non-briquetted form in a reducing furnace to produce metallic iron directly from the ore. An excess of biomass or coal or coke reductant can be used to provide CO and H that can be recovered as a synthetic gas and converted to electrical or other energy. Metallic iron nuggets or slabs can be produced from manganiferous ores or concentrates. Manganese can be caused to enter the nugget or slab or the slag by adjusting the furnace temperature. Titaniferous ores or concentrates can be used to produce metallic iron slabs or nuggets and a titanium-rich slag.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: December 9, 2014
    Inventor: John J. Simmons
  • Patent number: 8815150
    Abstract: Methods of producing metal nanowires, compositions, and articles are disclosed. Such methods allow production of metal nanowires with reproducibly uniform diameter and length, even in the presence of catalyst concentration variation. Such metal nanowires are useful for electronics applications.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: August 26, 2014
    Assignee: Carestream Health, Inc.
    Inventors: David R Whitcomb, William D Ramsden, Doreen C Lynch
  • Patent number: 8795408
    Abstract: A method and a device control the introduction of several metals into a cavity configured to melt the metals in the form of ingots. In particular, the method is configured to control the introduction of several metals into a cavity for melting the metals so as to dip-coat a steel strip with the metals in liquid metal form. Whereby a first metal is introduced in the form of at least a first ingot having a high content of the first metal and a second metal is introduced in the form of at least a second ingot formed as an alloy of the first metal and the second metal. The second metal content of the second ingot is chosen from a range of significant contents for ensuring an intended overall flow rate for combined melting of the ingots, the range of significant contents being chosen in a limited interval of sequentially increasing values so as to minimize differences between melting points of the ingots.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: August 5, 2014
    Assignee: Siemens VAI Metals Technologies SAS
    Inventors: Arnaud D'Halluin, Benjamin Grenier
  • Patent number: 8734564
    Abstract: Provided are a magnesium-based alloy and a manufacturing method thereof. In the method, a magnesium alloy is melted into liquid phase, and an alkaline earth metal oxide is added into a molten magnesium alloy. The alkaline earth metal oxide is exhausted through surface reduction reaction between the melt and the alkaline earth metal oxide. Alkaline earth metal produced by the exhaustion reacts with Mg and/or other alloying elements in the magnesium alloy so that an intermetallic compound is formed. The magnesium prepared by the method is excellent in fluidity and hot-tearing resistance. To this end, the alkaline earth metal oxide added is CaO, and the added amount of CaO is 1.4 to 1.7 times the target weight of Ca to be contained in the final Mg alloy.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: May 27, 2014
    Assignee: Korea Institute of Industrial Technology
    Inventors: Shae K. Kim, Jung-Ho Seo
  • Patent number: 8721765
    Abstract: A method of producing a brass is disclosed. The alloy contains trace amounts of iron, manganese or aluminum. Phosphorous is added to a zinc, copper melt and combined with the iron, manganese and aluminum to form intermetallics. Additional phosphorous is added so the melt contains between about 0.08 to 0.15% phosphorous. A low lead brass alloy is provided. The alloy has tin in the range of 0.15% to 0.35%.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: May 13, 2014
    Assignee: Mueller Industries, Inc.
    Inventor: Barry Munce
  • Patent number: 8636825
    Abstract: One aspect relates to a method for producing an alloy characterized by grinding tantalum to form a tantalum powder and grinding tungsten to form a tungsten powder; mixing the tantalum powder and the tungsten powder to form a blended powder. The weight fraction of tungsten powder in the blended powder is larger than in the desired alloy. A blended body is produced from the blended powder by a powder metallurgical route. A pre-alloy is produced by a first melting of the blended body and at least a fraction of at least one further metal by a melt metallurgical route. The alloy is produced by a second melting of the pre-alloy and the remaining fraction of at least one metal by a melt metallurgical route.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: January 28, 2014
    Assignee: W. C. Heraeus GmbH
    Inventors: Herwig Schiefer, Christoph Vogt, Heiko Specht, Jens Troetzschel, Egbert Stiedl
  • Patent number: 8613887
    Abstract: Methods of producing metal nanowires, compositions, and articles are disclosed. Such methods allow production of metal nanowires with reproducibly uniform diameter and length, even in the presence of catalyst concentration variation. Such metal nanowires are useful for electronics applications.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: December 24, 2013
    Assignee: Carestream Health, Inc.
    Inventors: David R. Whitcomb, William D. Ramsden, Doreen C. Lynch
  • Patent number: 8568509
    Abstract: A metal storage material, containing a perovskite-type composite oxide of formula (1), which is a material to stores a metal component of a metal-containing material: ABHaO3-b??Formula (1) in which A is at least one selected from lanthanoid elements and Group 2 elements of the periodic table, and B is at least one selected from Groups 3, 4, and 13 elements, and transition metal elements of the fourth period of the periodic table; a and b are quantities of hydrogen and oxygen vacancies, within the range of: 0?a?1.0, 0?b?0.5, respectively; and a method of recovering a metal, containing the steps of: heating the metal-containing material, in the presence of the perovskite-type composite oxide; dissolving, in an acid, the composite oxide which stores a metal, to give an eluate of the metal; and recovering the metal, from the eluate.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: October 29, 2013
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Masakazu Date, Tadahiro Fujitani, Katsuhiro Nomura, Hiroyuki Kageyama
  • Patent number: 8557021
    Abstract: A method by which the amount of nickel contained in an alloy having a composition represented by Sn—X—Ni can be regulated. The method of nickel concentration regulation comprises adding phosphorus to Sn—X—Ni in a molten state (wherein X is one or more elements selected from the group consisting of Ag, Zn, Cu, Bi, Au, Ti, Ge, Ga, Si, and Ce), holding the mixture at 250-400° C., and removing the resultant dross floating on the surface of the liquid phase and containing a P—Ni compound and a P—Sn—Ni compound. An example of X is copper, and the content thereof may be 0.3-5 wt %. The phosphorus may be added in the state of a Sn—P alloy. The upper limit of the amount of the phosphorus to be added may be about half the nickel amount in terms of atomic amount.
    Type: Grant
    Filed: February 22, 2008
    Date of Patent: October 15, 2013
    Assignee: Nihon Superior Sha Co., Ltd.
    Inventor: Tetsuro Nishimura
  • Patent number: 8500925
    Abstract: The invention relates to a method for producing monotectic alloys with finely dispersed and homogeneously distributed second phase particles from two or more starting metals or alloys, in which the two or more metals or alloys are melted together or separately and the two or more, practically immiscible liquid metallic alloys are mixed to disperse the alloy of lower volume ratio with the other alloy of higher volume ratio, then the system is cooled below the eutectic temperature. The characteristic feature of the method is that at least one of the starting alloys contains stabilizing solid particles.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: August 6, 2013
    Assignees: Kutatási Közalapítvány Nanotechnológiai Kutatóintézete
    Inventors: György Kaptay, István Budai
  • Patent number: 8414679
    Abstract: One aspect is a method for producing an alloy, whereby the alloy includes at least a first metal and a second metal, whereby firstly a powder metallurgical route and subsequently a melt metallurgical route is used sequentially in order to generate the alloy from the, at least, first metal and the second metal. The method includes grinding the first metal into a first metal powder, grinding the second metal into a second metal powder, mixing the first metal powder and the second metal powder to produce a blended powder, generating a blended body from the blended powder by the powder metallurgical route, and generating the alloy by melting the blended body by the melt metallurgical route.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: April 9, 2013
    Assignee: W. C. Heraeus GmbH
    Inventors: Herwig Schiefer, Christoph Vogt, Heiko Specht, Jens Troetzschel
  • Patent number: 8394170
    Abstract: One aspect is a method for producing an alloy, whereby the alloy consists of a first metal, a second metal, a third metal, and a fourth metal, and the first metal, the second metal, the third metal, and the fourth metal are selected from the group consisting of the metals, niobium, zirconium, tantalum tungsten. The method includes the steps of grinding the first metal to form a first metal powder and grinding the second metal to form a second metal powder; mixing the first metal powder and the second metal powder to form a first blended powder; generating a first blended body from the blended powder by a powder metallurgical route; and generating the alloy by melting the first blended body and the remaining metals by a melt metallurgical route.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: March 12, 2013
    Assignee: W. C. Heraeus GmbH
    Inventors: Herwig Schiefer, Christoph Vogt, Heiko Specht, Jens Troetzschel
  • Patent number: 8366800
    Abstract: A target consisting essentially of a CoCrPt-based metal or a CoCrPtRu-based metal, and one or more metal oxides selected from the group consisting of SiO2, Cr2O3, CoO, TiO2 and Ta2O5, is heated in an upper crucible of a two-level crucible that includes the upper crucible with a through hole formed in a bottom surface, and a lower crucible disposed below the through hole. The target is heated at a temperature of from 1400 to 1790° C. if the target does not contain both TiO2 and Ta2O5. The target is heated at a temperature of from 1400 to 1630° C. if the target contains TiO2 but does not contain Ta2O5. The target is heated at a temperature of from 1400 to 1460° C. if the target contains Ta2O5. The metal thereby melted is caused to flow into the lower crucible, so that the metal is separated from the metal oxide.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: February 5, 2013
    Assignee: Tanaka Kikinzoku Kogyo K.K.
    Inventors: Toshiya Yamamoto, Takanobu Miyashita, Kiyoshi Higuchi, Yasuyuki Goto
  • Publication number: 20130029171
    Abstract: A nickel-base alloy comprising: 12-40 wt % chromium; up to 13 wt % copper; up to 8% aluminium; balance nickel and incidental impurities is disclosed. Such alloys show an improved carbon corrosion resistance at high temperatures. Such an alloy could therefore be utilised in chemical processing or conveying apparatus, such as steam reforming, syngas production, fertilizer production, ammonia production or coal gasification, or more generally where gases with high carbon potentials are present. The alloy may further comprise one or more rare earth elements, up to a combined total of 1 wt %.
    Type: Application
    Filed: July 19, 2012
    Publication date: January 31, 2013
    Inventors: Philip Johann Meinrad Speck, David J. Young
  • Patent number: 8349099
    Abstract: Metal seeds for forming single-crystal shape-memory alloys (SMAs) may be fabricated with high reliability and control by alloying thin films of material together. In particular, described herein are methods of forming AlCuNi SMAs by first producing high-quality seeds (ingots) of copper, aluminum, and nickel to produce for pulling single crystal shape memory alloys, in particular superelastic or hyperelastic alloys. The method is applicable to a wide range of alloys in which one or more of the components are reactive. The method is an improvement upon traditional methods such as mixing and melting pellets. In this improved method, a reactive layer (e.g., aluminum) is provided in thin flat layers between layers of other materials (e.g., copper and layers of nickel).
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: January 8, 2013
    Assignee: Ormco Corporation
    Inventors: Alfred David Johnson, Walter A. Bachmann
  • Patent number: 8268034
    Abstract: Provided is a manufacturing method of ferromolybdenum from molybdenite concentrate, and more particularly, a manufacturing method of ferromolybdenum with copper content of 0.5% or less from molybdenite with high copper content without carrying out a separate copper removing process by putting molybdenite, aluminum metal and iron metal, in a heating furnace and reacting them at high temperature to manufacture the ferro molybdenum at the lower portion thereof, forming a slag using aluminum sulfide and iron sulfide as the main components at the upper portion thereof, and putting most of the copper (80 to 95%) existing in the molybdenite in a slag layer. The exemplary embodiment can shorten a process as compared to a metallothermic reduction (Thermit) method of the related art and reduce the consumption of a reducing agent, i.e., aluminum.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: September 18, 2012
    Assignee: Korea Institute of Geoscience and Mineral Resources (KIGAM)
    Inventors: Young Yoon Choi, Sang Bae Kim, Chang Youl Suh, Chul Woo Nam
  • Patent number: 8268236
    Abstract: The invention concerns an aluminum-based master alloy for manganese alloying of metal alloys and a method for producing thereof, and use thereof for production of the metal alloys. The master alloy is aluminum and manganese (Al—Mn) alloy in form of splatters, which contains the following components in mass %: Mn 77-93, other components in total 0-5, Al—the rest. The method for producing the master alloy is characterized in that the temperature for adding the manganese to the liquid metal is in the range from 660 to 1600° C., and the cooling rate of the alloy during casting is in the range of 50-1500° C./sec for obtaining splatters of the master alloy. Thickness of splatters is in the range of 1-10 mm. The master alloys AlMn80 and AlMn90 are designed to be used for manganese alloying of metal alloys, whereas the temperature for adding the master alloy in the liquid metal is in the range from 600 to 850° C.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: September 18, 2012
    Inventor: Mihhail Terehhov
  • Patent number: 8262767
    Abstract: A method of producing steel for a steel pipe excellent in sour-resistance performance comprises controlling the amount of Ca addition charged into a molten steel in a ladle according to a N content in the molten steel prior to Ca addition. Non-metallic inclusions in the steel are mainly composed of Ca, Al, 0 and S, and a CaO content in the inclusions is in the range of 30 to 80%, the ratio of the N content in the steel to the CaO content in the inclusions satisfying equation (1), and a CaS content in the inclusions satisfies equation (2), 0.28?[N]/(% CaO)?2.0??(1) (% CaS)?25%??(2) where [N] represents the mass content (ppm) of N in the steel, (% CaO) represents the mass content (%) of CaO in the inclusions, and (% CaS) represents the mass content (%) of CaS in the inclusions.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: September 11, 2012
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Mitsuhiro Numata, Shingo Takeuchi, Tomohiko Omura
  • Patent number: 8257464
    Abstract: The present invention relates to pulverulent materials suitable for storing hydrogen, and more particularly to a method of preparing such a material, in which: (A) a composite metallic material having a specific granular structure is prepared by co-melting the following mixtures: a first metallic mixture (m1), which is an alloy (a1) of body-centered cubic crystal structure, based on titanium, vanadium, chromium and/or manganese, or a mixture of these metals in the proportions of the alloy (a1); and a second mixture (m2), which is an alloy (a2), comprising 38 to 42% zirconium, niobium, molybdenum, hafnium, tantalum and/or tungsten and 56 to 60 mol % of nickel and/or copper, or else a mixture of these metals in the proportions of the alloy (a2), with a mass ratio (m2)/(m1+m2) ranging from 0.1 wt % to 20 wt %; and (B) the composite metallic material thus obtained is hydrogenated, whereby the composite material is fragmented (hydrogen decrepitation).
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: September 4, 2012
    Assignee: Centre National de la Recherche Scientifique (C.N.R.S.)
    Inventors: Jean Charbonnier, Patricia De Rango, Daniel Fruchart, Salvatore Miraglia, Sophie Rivoirard, Natalia Skryabina
  • Patent number: 8171980
    Abstract: A process for producing a rare earth alloy comprises heating a raw material alloy to be a molten alloy, and quench-solidifying the molten alloy, wherein the raw material alloy is compounded so as to have a composition represented by the formula: REx(Co1-yMy)4Sb12 (wherein RE is at least either one member of La and Ce, M is at least one member selected from the group consisting of Ti, Zr, Sn, Cu, Zn, Mn and Pb, 0<x?1, and 0<y<1).
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: May 8, 2012
    Assignee: Showa Denko K.K.
    Inventor: Kenichiro Nakajima
  • Publication number: 20120085145
    Abstract: A network of nanowires may be used for a sensor. The nanowires are metallic, each nanowire has a thickness of at most 20 nm, and each nanowire has a width of at most 20 nm. The sensor may include nanowires comprising Pd, and the sensor may sense a change in hydrogen concentration from 0 to 100%. A device may include the hydrogen sensor, such as a vehicle, a fuel cell, a hydrogen storage tank, a facility for manufacturing steel, or a facility for refining petroleum products.
    Type: Application
    Filed: September 26, 2011
    Publication date: April 12, 2012
    Inventor: Zhili Xiao
  • Patent number: 8062585
    Abstract: A method includes releasing mercury in devices requiring mercury, in particular fluorescent lamps. The method includes the use of manganese-mercury compositions.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: November 22, 2011
    Assignee: Saes Getters S.p.A.
    Inventors: Alessio Corazza, Vincenzo Massaro, Alessandro Gallitognotta
  • Patent number: 8006741
    Abstract: A process for producing a rare earth alloy comprising: heating a raw material alloy in an inert atmosphere to be a molten alloy, and then quench-solidifying the molten alloy, wherein the raw material alloy is compounded so as to have a composition represented by the formula: REx(Fe1-yMy)4Sb12 (wherein RE is at least either one member of La and Ce, M is at least one member selected from the group consisting of Ti, Zr, Sn and Pb, 0<x?1, 0.01?y?0.15, and the lower limit of y is more than impurity).
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: August 30, 2011
    Assignee: Showa Denko K.K.
    Inventor: Kenichiro Nakajima
  • Patent number: 7997325
    Abstract: A first method for producing a half Heuslar alloy includes quench-solidifying a molten alloy at a cooling rate of 1×102 to 1×103° C./sec to produce a half Heuslar alloy having a ratio of strongest peak of the half Heuslar phase of 90% or more in an as-cast state, the alloy having the formula: ABC (wherein A and B each is at least one member selected from Fe, Co, Ni, Ti, V, Cr, Zr, Hf, Nb, Mo, Ta and W, and C is at least one member selected from Al, Ga, In, Si, Ge and Sn). A second method is one in which the half Hueslar alloy has the formula: Ti1-xAxNi1-yBySn1-zCz (wherein each of A and B is at least one member selected from Co, Ni, Ti, V, Cr, Zr, Hf, Nb, Mo, Ta and W, C is at least one selected from Al, Ga, In, Si, Ge and Sn).
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: August 16, 2011
    Assignee: Showa Denko K.K.
    Inventor: Kenichiro Nakajima
  • Patent number: 7976776
    Abstract: Compositions are disclosed comprising mercury, titanium, copper and one or more of tin, chromium and silicon, useful for the release of mercury in applications requiring the same, in particular in fluorescent lamps. A process for the preparation of these compositions is also disclosed.
    Type: Grant
    Filed: January 7, 2010
    Date of Patent: July 12, 2011
    Assignee: Saes Getters S.p.A.
    Inventors: Alberto Coda, Alessio Corazza, Alessandro Gallitognotta, Vincenzo Massaro, Mario Porro, Luca Toia
  • Patent number: 7959709
    Abstract: A method of producing steel pipe excellent in sour-resistance performance, uses comprises controlling the amount of Ca addition charged into molten steel in a ladle according to a N content in the molten steel prior to Ca addition. As a result of the controlling step, a CaO content in the inclusions is in the range of 30 to 80%, the ratio of the N content in the steel to the CaO content in the inclusions satisfies the relation expressed by equation (1), and a CaS content in the inclusions satisfies the relation expressed by equation (2). 0.28?[N]/(% CaO)?2.0??(1) (% CaS)?25%??(2) where [N] represents the mass content (ppm) of N in the steel, (% CaO) represents the mass content (%) of CaO in the inclusions, and (% CaS) represents the mass content (%) of CaS in the inclusions.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: June 14, 2011
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Mitsuhiro Numata, Shingo Takeuchi, Tomohiko Omura
  • Publication number: 20110123391
    Abstract: Provided are an aluminium alloy and a manufacturing method thereof. In the method, aluminium and a magnesium (Mg) master alloy containing a calcium (Ca)-based compound are provided. A melt is prepared, in which the Mg master alloy and the Al are melted. The aluminum alloy may be manufactured by casting the melt.
    Type: Application
    Filed: November 18, 2010
    Publication date: May 26, 2011
    Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
    Inventors: Shae-Kwang KIM, Jin-Kyu LEE, Min-Ho CHOI, Young-Ok YOON
  • Publication number: 20110123390
    Abstract: Provided are an aluminium alloy and a manufacturing method thereof. In the method, aluminium and a master alloy containing a calcium (Ca)-based compound are provided. A melt is prepared, in which the master alloy and the Al are melted. The aluminum alloy may be manufactured by casting the melt.
    Type: Application
    Filed: November 18, 2010
    Publication date: May 26, 2011
    Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
    Inventors: Shae-Kwang KIM, Jin-Kyu LEE, Min-Ho CHOI, Jeong-Ho SEO
  • Patent number: 7927516
    Abstract: A method for synthesis of high quality colloidal nanoparticles using comprises a high heating rate process. Irradiation of single mode, high power, microwave is a particularly well suited technique to realize high quality semiconductor nanoparticles. The use of microwave radiation effectively automates the synthesis, and more importantly, permits the use of a continuous flow microwave reactor for commercial preparation of the high quality colloidal nanoparticles.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: April 19, 2011
    Assignee: The Regents of the University of California
    Inventors: Geoffrey F. Strouse, Jeffrey A. Gerbec, Donny Magana
  • Publication number: 20110068152
    Abstract: Disclosed herein are iron-based alloys having a structure comprising fine-grained ferritic matrix and having a 60+ Rockwell C surface, wherein the ferrific matrix comprises <10 ?m Nb and W carbide precipitates. Also disclosed are methods of welding comprising forming a crack free hardbanding weld overlay coating with such an iron-based alloy. Also disclosed are methods of designing an alloy capable of forming a crack free hardbanding weld overlay, the methods comprising the step determining an amorphous forming epicenter composition, determining a variant composition having a predetermined change in constituent elements from the amorphous forming epicenter composition, and forming and analyzing an alloy having the variant composition.
    Type: Application
    Filed: September 17, 2010
    Publication date: March 24, 2011
    Inventors: Justin Lee Cheney, John Hamilton Madok
  • Patent number: 7849909
    Abstract: The present invention provides a method for producing a half Heuslar alloy including quench-solidifying a molten alloy at a cooling rate of 1×102 to 1×103° C./sec to produce a Heuslar alloy represented by the formula: ABC (wherein A and B each is at least one member selected from transition metals such as Fe, Co, Ni, Ti, V, Cr, Zr, Hf, Nb, Mo, Ta and W, and C is at least one member selected from Group 13 or 14 element such as Al, Ga, In, Si, Ge and Sn), and a high-performance thermoelectric power generating device using the thermoelectric semiconductor alloy.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: December 14, 2010
    Assignee: Showa Denko K.K.
    Inventor: Kenichiro Nakajima
  • Patent number: 7842639
    Abstract: A hydrogenation catalyst including a base material coated with a catalytic metal is made using mechanical milling techniques. The hydrogenation catalysts are used as an excellent catalyst for the dehalogenation of contaminated compounds and the remediation of other industrial compounds. Preferably, the hydrogenation catalyst is a bimetallic particle including zero-valent metal particles coated with a catalytic material. The mechanical milling technique is simpler and cheaper than previously used methods for producing hydrogenation catalysts.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: November 30, 2010
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Jacqueline W. Quinn, Christian A. Clausen, Cherie L. Geiger, Brian S. Aitken
  • Patent number: 7824461
    Abstract: A method for fabricating a magnesium-based alloy includes the steps of: (a) mixing a number of carbon nanotubes with a number of magnesium particles; (b) heating the mixture in a protective gas to achieve a semi-solid-state paste; (c) stirring the semi-solid-paste using an electromagnetic stirring force to disperse the carbon nanotubes into the paste; (d) injecting the semi-solid-state paste into a die; and (e) cooling the semi-solid-state paste to achieve a magnesium-based alloy. An apparatus for fabricating the magnesium-based alloy includes a transferring device, a thixomolding machine, and an electromagnetic stirring device. The transferring device includes a feed inlet. The thixomolding machine includes a heating barrel having two ends, a nozzle disposed at a first end thereof, and an material input positioned at a second end thereof. The electromagnetic stirring device includes an electromagnetic induction coil disposed on an outer wall of the heating barrel.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: November 2, 2010
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Kam-Shau Chan, Cheng-Shi Chen, Li-Qing Zhang, Wen-Zhen Li
  • Patent number: 7740684
    Abstract: A method of recovering the metal from automobile scrap and electronic waste. It includes separating the automobile scrap and the electronic waste to provide some metal pieces, washing and/or shredding and/or selecting said metal pieces to provide some groups of metal pieces having the same metal element, making a full-elemental analysis, comparing the weight of different metal pieces having the same metal element and attaining different combinations of value, weighted averaging the combination of value to calculate the full-elemental weighted average according to the different combinations of value, comparing the different full-elemental weighted averaging to different composite material, and finding a optimal set or some optimal sets, further disposing metal pieces according to the optimal set, and manufacturing alloy. Present invention has a lot of advantages, such as reducing pollution and cost, and processing more waste.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: June 22, 2010
    Assignee: Shenzhen Green Eco-Manufacture Hi-Tech Co., Ltd.
    Inventor: Kaihua Xu
  • Publication number: 20100098581
    Abstract: A revert alloy is used in the manufacture of a target alloy having a different composition. The weight percent of the elemental constituents of this first alloy and a second or target alloy are obtained, and the ratio of the percentage by weight of each elemental constituent in the first alloy to the second alloy is determined. The lowest ratio is used to determine the amount of the first alloy that is melted and the necessary elemental constituents that are added to the melt to produce the desired composition of the target alloy. The melt is solidified to produce the target alloy.
    Type: Application
    Filed: October 16, 2008
    Publication date: April 22, 2010
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Dale A. Schenk, John J. Schirra
  • Patent number: 7700038
    Abstract: A formed article for making alloying additions to metal melts includes particles of at least one master alloy and a binder material binding the particles of the master alloy in the formed article. The binder material changes form and frees the master alloy particles when the formed article is heated to a predetermined temperature, preferably a temperature greater than 500° F. A method for making an alloy also is provided. The method includes preparing a melt comprising a predetermined quantity of a master alloy wherein the master alloy is added to the melt or the melt starting materials in the form of particles of the master alloy bound into at least one formed article by a binder material that decomposes at a predetermined temperature, preferably a temperature greater than 500° F., and releases the particles of master alloy.
    Type: Grant
    Filed: March 21, 2005
    Date of Patent: April 20, 2010
    Assignee: ATI Properties, Inc.
    Inventors: Timothy F. Soran, Matthew J. Arnold
  • Patent number: 7691216
    Abstract: A melt of a hydrogen storage alloy having an arbitrary composition is cooled gradually at a cooling rate of 5° C./min or less and solidified. Alternatively an alloy having an arbitrary composition, after heating to a temperature equal to or more than a melting point thereof, is cooled gradually at a cooling rate of 5° C./min or less and solidified. Thereby a homogeneous alloy reduced in segregation, precipitates, or inclusions is obtained. The homogeneous alloy is excellent in the hydrogen storage amount, in the plateau property and in durability.
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: April 6, 2010
    Assignee: The Japan Steel Works, Ltd.
    Inventors: Hironobu Arashima, Takashi Ebisawa, Hideaki Itoh
  • Publication number: 20100068091
    Abstract: A metal alloy feedstock and method for metal injection molding is disclosed. The alloy includes at least two components, such as a first component and a second component. The first component has a first melting point and the second component has a second melting point higher than the first melting point. The first melting point and the second melting point match to the temperature gradient of the heated barrel of an injection molding machine whereby when fed into the injection molding machine the first component melts prior to the second component melts and enables the second component to solute into the first component. Additional components may also be used.
    Type: Application
    Filed: September 17, 2009
    Publication date: March 18, 2010
    Applicant: COOL POLYMERS, INC.
    Inventors: James D. Miller, Kevin A. McCullough
  • Patent number: 7651546
    Abstract: The present invention provides a method for manufacturing high-purity hydrogen storage alloy Mg2Ni applicable to industry and capable of manufacturing continuously. First, raw materials of magnesium-nickel with weight percentage of nickel between 23.5 and 50.2 are heated, melt, and mixed uniformly. Cool the magnesium-nickel liquid and control the temperature to be above the solidification temperature and below the liquification temperature in the phase diagram of magnesium-nickel. By making advantage of segregation principle in phase diagrams, solid-state high-purity ?-phase Mg2Ni hydrogen storage alloy is given. Then high-purity ?-phase Mg2Ni hydrogen storage alloy with atomic ratio of 2:1, no other phases, and with excellent hydrogen absorption-desorption dynamics is given.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: January 26, 2010
    Assignee: Chung Shan Institute of Science and Technology, Armaments Bureau, M.N.D.
    Inventors: Yuan-Pang Wu, Hui-Yun Bor, Rong-Ruey Jeng
  • Publication number: 20090317291
    Abstract: A gold alloy that is usable for jewelry and other applications. The gold alloy is made by combining Y % gold with Z % of a master alloy, wherein Y+Z=100. The master alloy includes 16% silver, 71.771% copper, 12% zinc and 0.229% X, wherein X being selected from the group consisting of silicon, germanium, or mixtures thereof. The gold alloy may be made by first forming the master alloy and then mixing the gold with the master alloy. The gold alloy may also be made by mixing gold with the elements of the master alloy without first forming the master alloy.
    Type: Application
    Filed: June 20, 2008
    Publication date: December 24, 2009
    Inventor: Annette Gertge
  • Patent number: 7604680
    Abstract: A metallic article is produced by furnishing one or more nonmetallic precursor compound comprising the metallic base nickel, cobalt, iron, iron-nickel, or iron-nickel-cobalt, and at least one alloying element. The nonmetallic precursor compound(s) are chemically reduced to produce an initial metallic particle without melting the initial metallic particle. The initial metallic particle is thereafter melted and solidified to produce the metallic article. The melted-and-solidified metal may be used in the as-cast form, or it may be converted to billet and further worked to the final form.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: October 20, 2009
    Assignee: General Electric Company
    Inventors: Clifford Earl Shamblen, Andrew Philip Woodfield, Eric Allen Ott, Michael Francis Xavier Gigliotti
  • Patent number: 7597738
    Abstract: A process for the production of ferro-nickel or nickel matte from a product liquor solution containing at least nickel, cobalt, iron and acid soluble impurities, said process including the steps of: (a) contacting the product liquor solution (7) containing the nickel, cobalt, iron and acid soluble impurities with an ion exchange resin (8), wherein the resin selectively absorbs nickel and iron from the solution leaving the cobalt and the acid soluble impurities in the raffinate (9); (b) stripping the nickel and iron from the resin with a sulfuric acid solution to produce an eluate (11) containing nickel and iron; (c) neutralising the eluate to precipitate a mixed nickel iron hydroxide product (13); and (d) reducing and smelting the mixed nickel iron hydroxide product to produce ferro-nickel (29) or nickel matte (24).
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: October 6, 2009
    Assignee: BHP Billiton SSM Technology Pty Ltd.
    Inventors: Houyuan Liu, Alexey Duarte, Wolf Meihack, Ivan P. Ratchev
  • Patent number: 7553383
    Abstract: A martensitic steel metallic article (20) made of metallic constituent elements is fabricated from a mixture of nonmetallic precursor compounds of the metallic constituent elements. The mixture of nonmetallic precursor compounds is chemically reduced to produce a metallic martensitic steel, without melting the metallic martensitic steel. The metallic martensitic steel is consolidated to produce a consolidated metallic article (20), without melting the metallic martensitic steel and without melting the consolidated metallic article (20).
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: June 30, 2009
    Assignee: General Electric Company
    Inventors: Clifford Earl Shamblen, Andrew Philip Woodfield, Eric Allen Ott, Michael Francis Xavier Gigliotti
  • Patent number: 7553382
    Abstract: The present invention relates to the addition of niobium to iron based glass forming alloys and iron based Cr—Mo—W containing glasses. More particularly, the present invention is related to changing the nature of crystallization resulting in glass formation that may remain stable at much higher temperatures, increasing the glass forming ability and increasing devitrified hardness of the nanocomposite structure.
    Type: Grant
    Filed: February 11, 2005
    Date of Patent: June 30, 2009
    Assignee: The NanoSteel Company, Inc.
    Inventors: Daniel J. Branagan, M. Craig Marshall, Brian Meacham
  • Patent number: 7550029
    Abstract: A method is described for reclaiming an Al—B4C composite scrap material. The method involves heating a liquid pool of molten aluminum while also pre-heating the scrap material. The scrap material is then added to the molten aluminum and a predetermined melt temperature is maintained in the liquid pool until all of the scrap material melts into the molten aluminum to form a resultant composite melt. Finally, the resultant composite melt is stirred to promote uniformity. A method is also described for preparing a B4C-containing aluminum cast composite products that involves preparing a mixture of free-flowing B4C particles and molten aluminum and stirring the mixture to wet the aluminum to the B4C particles. The mixture is then cast into a cast composite material and processed to form the cast composite product and Al—B4C composite scrap material. The scrap material is then reclaimed by the method described above.
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: June 23, 2009
    Assignee: Alcan International Limited
    Inventors: Xiao-Guang Chen, Jean-Yves Fortin