Incorporating Addition Or Chemically Reactive Agent To Metal Casting Material Patents (Class 164/55.1)
  • Patent number: 10712781
    Abstract: A casing assembly of an electronic device is provided. The casing assembly of the electronic device is configured to connect a connecting assembly. The connecting assembly comprises a metal casing; and an injection-molded frame. The injection-molded frame includes a first surface and a second surface, the first surface is fixed to the metal casing, and the second surface is configured with a plurality of connecting structures. The connecting structures are fixed to the connecting assembly, and the connecting assembly is assembled to the metal casing via the connecting structures.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: July 14, 2020
    Assignee: ASUSTEK COMPUTER INC.
    Inventors: San-Feng Lin, Yen-Yu Chen
  • Patent number: 10106872
    Abstract: Downhole tools including at least one component made of a doped magnesium alloy solid solution that at least partially degrades in the presence of an electrolyte. The downhole tool is selected from the group consisting of a wellbore isolation device, a completion tool, a drill tool, a testing tool, a slickline tool, a wireline tool, an autonomous tool, a tubing conveyed perforating tool, and any combination thereof.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: October 23, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Zachary Walton, Michael Linley Fripp, Michael James Jurgensmeier, Zachary Murphree
  • Patent number: 9132477
    Abstract: A quality management device and a die-cast molding machine capable of suitably inspecting quality in relation to the amount of blowholes of a die-cast product which is cast according to a PF die casting method are provided. A quality management device 3 performs the quality management of the die-cast product formed according to the pore free die casting method of supplying oxygen to a cavity Ca and an injection sleeve 27 communicated with the cavity Ca and, in that state, ejecting a melt in the injection sleeve 27 into the cavity Ca. Further, the quality management device 3 has a vacuum sensor 51 which detects the air pressure in the cavity Ca and a control device 70 which makes good/defective judgment of quality of the die-cast product in relation to the amount of blowholes based on the air pressure detected by the vacuum sensor 51 during injection.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: September 15, 2015
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Satoshi Tomioka, Satoru Aida
  • Patent number: 9033023
    Abstract: A copper alloy having an electrical resistivity lower than those of current copper alloys and a tensile strength higher than those of current copper alloys and a method of manufacturing such a copper alloy are provided. The copper alloy is produced by adding a predetermined amount of carbon to a molten copper in a high-temperature environment of a temperature in the range of 1200° C. to 1250° C. such that the copper alloy has a carbon content in the range of 0.01% to 0.6% by weight.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: May 19, 2015
    Assignees: SHIROGANE CO., LTD., UNIVERSITY OF TSUKUBA
    Inventors: Yoshihito Ijichi, Kenichi Ohshima
  • Patent number: 8978734
    Abstract: Methods of forming at least a portion of an earth-boring tool include providing particulate matter including a hard material in a mold cavity, melting a metal and the hard material to form a molten composition comprising a eutectic or near-eutectic composition of the metal and the hard material, casting the molten composition to form the at least a portion of an earth-boring tool within the mold cavity, and providing an inoculant within the mold cavity. Methods of forming a roller cone of an earth-boring rotary drill bit include forming a molten composition, casting the molten composition within a mold cavity, solidifying the molten composition to form the roller cone, and controlling grain growth using an inoculant as the molten composition solidifies. Articles including components of earth-boring tools are fabricated using such methods.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: March 17, 2015
    Assignee: Baker Hughes Incorporated
    Inventor: John H. Stevens
  • Publication number: 20140377128
    Abstract: An aluminum alloy includes, in weight percent, 0.50-1.30% Si, 0.2-0.60% Fe, 0.15% max Cu, 0.5-0.90% Mn, 0.6-1.0% Mg, and 0.20% max Cr, the balance being aluminum and unavoidable impurities. The alloy may include excess Mg over the amount that can be occupied by Mg—Si precipitates. The alloy may be utilized as a matrix material for a composite that includes a filler material dispersed in the matrix material. One such composite may include boron carbide as a filler material, and the resultant composite may be used for neutron shielding applications.
    Type: Application
    Filed: June 19, 2014
    Publication date: December 25, 2014
    Inventors: Nicholas C. Parson, Pierre Marchand, Jean-Alain Laurin
  • Patent number: 8906170
    Abstract: An alloy casting having a protective layer disposed on a surface of the casting is provided. The protective layer is resistant to liquid metal attack, and wherein the protective layer includes an oxide of an element present in the alloy. A method of forming a protective layer on a surface of the alloy casting is also provided. The method includes disposing the alloy in a mold, and oxidizing an element of the alloy to form a protective layer on the surface of the casting.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: December 9, 2014
    Assignee: General Electric Company
    Inventors: Michael Frances Xavier Gigliotti, Jr., Stephen Francis Rutkowski, Shyh-Chin Huang, Roger John Petterson, Luana Emiliana Iorio, Andrew John Elliott
  • Publication number: 20140348694
    Abstract: A process for producing spheroidal graphite cast iron includes a spheroidization treatment, an inoculant treatment and a pouring inoculation treatment. A molten iron is subjected to the spheroidization treatment using a spheroidizing agent of an Fe—Si—Mg—Ca-based alloy which contains a given amount of Ba and contains substantially no rare-earth element.
    Type: Application
    Filed: December 19, 2012
    Publication date: November 27, 2014
    Inventors: Tsukasa Baba, Takao Horiya, Takuya Tokiyama, Takashi Sato, Hiroshi Idei, Yutaka Nishikawa, Masakazu Kitahara, Hidekazu Narita
  • Publication number: 20140305549
    Abstract: An amorphous and a manufacturing method thereof are provided. The amorphous alloy may have a formula of ZraCubAlcMdNe, M is at least one selected from the group consisting of Ni, Fe, Co, Mn, Cr, Ti, Hf, Ta, Nb and rare earth elements; N is at least one selected from a group consisting of Ca, Mg, and C; 40?a?70, 15?b?35, 5?c?15, 5?d?15, 0?e?2, and a+b+c+d+e=100.
    Type: Application
    Filed: December 14, 2012
    Publication date: October 16, 2014
    Inventors: Qing Gong, Faliang Zhang, Yunchun Li
  • Publication number: 20140251510
    Abstract: A cam ring of a vane pump and a method of manufacturing a cam ring are provided. The cam ring may be formed of a material including approximately 3.0% to 3.5% of carbon (C), approximately 2.0% to 2.5% of silicon (Si), approximately 0.5% to 1.0% of manganese (Mn), approximately 0.5% to 1.0% of chromium (Cr), approximately 0.2% to 0.5% of copper (Cu), approximately 0.1% to 0.3% of phosphor (P), approximately 0.02% to 0.06% of boron (B), approximately 0.06% to 0.1% of sulfur (S), and approximately 0.043% or more of titanium (Ti) by weight ratio, and iron (Fe) and any inevitable impurity for the remainder, and may have a tempered martensite matrix including a carbide.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 11, 2014
    Inventor: Jaebong PARK
  • Publication number: 20140255238
    Abstract: A rotor of a vane pump and a method of manufacturing a rotor are provided. The rotor may be formed to include a plurality of radially formed slots and having a disk shape, and may include approximately 20% to 70% of pig iron, approximately 0.2% to 0.5% of copper (Cu), and approximately 0.1% to 0.4% of iron (Fe) by weight ratio, and scraps and steel wastes for the remainder, and may be formed of a nodular graphite cast iron including precipitated spheroidal graphite and having an austenite structure.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 11, 2014
    Inventor: Jaebong Park
  • Publication number: 20140255243
    Abstract: A spline hub for a clutch and a manufacturing method thereof are provided. The spline hub may include C: 3.4˜3.9%, Si: 2.1˜2.5%, Mn: 0.2˜0.7%, P: 0.01% or less, S: 0.009˜0.02%, Cu: 0.2˜0.4%, and Mg: 0.04˜0.07% by weight ratio, with the remainder including iron (Fe), as well as other impurities. The material forming the spline hub may have a structure in which spheroidal graphite is precipitated in an austenite matrix structure.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 11, 2014
    Inventor: Jaebong PARK
  • Publication number: 20140255233
    Abstract: Compacted/vermicular (CV) graphite cast iron for an orbital or fixed scroll and a method for manufacturing an orbiting or fixed scroll using the same are provided. The CV graphite cast iron may includes C: 3.4˜3.9%, Si: 1.7˜2.6%, Mn: 0.2˜0.8%, P: 0.02˜0.07%, S: 0.01˜0.03%, Ti: 0.02˜0.1% by weight ratio, with the remainder including iron (Fe) and other impurities. A CV ratio may be 50% or more.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 11, 2014
    Inventor: Jaebong PARK
  • Publication number: 20140219860
    Abstract: A process for producing formed parts made of an aluminum alloy, including the steps of exposing the aluminum alloy to high shearing forces in a mixing and kneading machine, feeding the liquid aluminum alloy to the working space at one end of the housing and, at the other end of the housing, removing from the working space the liquid aluminum alloy now formed as a partially solid aluminum alloy with a predefined solids content, and processing the partially solid aluminum alloy with the predefined solids content into formed parts, wherein the solids content of the aluminum alloy in the working space is set to the predefined solids content by cooling and heating the working space in a targeted manner. The mixing and kneading machine includes a housing with a working space, a worm shaft including kneading blades and axial passage openings, and kneading projections.
    Type: Application
    Filed: August 8, 2012
    Publication date: August 7, 2014
    Applicant: Rheinfelden Alloys GmbH & Co. KG
    Inventor: Rudiger Franke
  • Publication number: 20140199205
    Abstract: Provided are an aluminum alloy and a production method thereof. In accordance with an embodiment, an aluminum-based mother material is melted to form a molten metal. An additive including silicon oxide is added to the molten metal. At least a portion of the silicon oxide is exhausted in the molten metal. The molten metal is cast.
    Type: Application
    Filed: May 16, 2012
    Publication date: July 17, 2014
    Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
    Inventors: Shae-Kwang Kim, Young-Ok Yoon, Jeong-Ho Seo
  • Patent number: 8770261
    Abstract: A method of making a degradable alloy includes adding one or more alloying products to an aluminum or aluminum alloy melt; dissolving the alloying products in the aluminum or aluminum alloy melt, thereby forming a degradable alloy melt; and solidifying the degradable alloy melt to form the degradable alloy. A method for manufacturing a product made of a degradable alloy includes adding one or more alloying products to an aluminum or aluminum alloy melt in a mold; dissolving the one or more alloying products in the aluminum or aluminum alloy melt to form a degradable alloy melt; and solidifying the degradable alloy melt to form the product. A method for manufacturing a product made of a degradable alloy includes placing powders of a base metal or a base alloy and powders of one or more alloying products in a mold; and pressing and sintering the powders to form the product.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: July 8, 2014
    Assignee: Schlumberger Technology Corporation
    Inventor: Manuel Marya
  • Patent number: 8734602
    Abstract: The present disclosure relates to a magnesium based composite material. The magnesium based composite material includes a magnesium based metal matrix and nanoparticles dispersed in the magnesium based metal matrix in a weight percentage of a range from about 0.01% to about 2%. The present disclosure also relates to a method for making the magnesium based composite material. In the method, the nanoparticles are added to the magnesium based metal at a temperature of about 460° C. to about 580° C. to form a mixture. The mixture is ultrasonically vibrated at a temperature of about 620° C. to about 650° C. The mixture is casted at a temperature of about 650° C. to about 680° C., to form an ingot.
    Type: Grant
    Filed: December 26, 2010
    Date of Patent: May 27, 2014
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Wen-Zhen Li, Hwang-Miaw Chen
  • Patent number: 8726974
    Abstract: A method to produce cast iron articles with various graphite morphologies is disclosed that provides cast iron with tailored properties at different locations of the article. Flake graphite morphology is preferably created at locations requiring excellent thermal conductivity or lubricity. Spheroidal graphite morphology is preferably created at locations requiring excellent strength or mechanical fatigue life. These methods may be particularly valuable for the production of heavy duty diesel engine components.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: May 20, 2014
    Assignee: Caterpillar Inc.
    Inventors: James O. Barlow, Marvin G. McKimpson, George B. Kokos
  • Publication number: 20140093420
    Abstract: Provided are an alloy production method that may easily distribute a compound in a matrix of an alloy while maintaining the quality of a molten metal, and an alloy produced by the same. In accordance with an exemplary embodiment, the method includes forming a molten metal in which a mother alloy including at least one kind of first compound and a casting metal are melted, and casting the molten metal, wherein the mother alloy is a magnesium mother alloy or aluminum mother alloy.
    Type: Application
    Filed: May 16, 2012
    Publication date: April 3, 2014
    Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
    Inventor: Se-Kwang Kim
  • Publication number: 20140086790
    Abstract: Provided are an aluminum alloy improving mechanical characteristics by allowing a magnesium-silicon compound to be distributed in an aluminum matrix without performing a heat treatment, and a production method thereof. In accordance with an aspect of the present disclosure, there is provided a method of producing an aluminum alloy, including: melting a magnesium mother alloy including a magnesium-silicon compound, and aluminum to form a molten metal; and casting the molten metal.
    Type: Application
    Filed: May 16, 2012
    Publication date: March 27, 2014
    Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
    Inventors: Se-Kwang Kim, Young-Ok Yoon, Jeong-Ho Seo
  • Publication number: 20140053999
    Abstract: A method of metal injection molding on a plastics injection molding machine having a heated barrel with an increasing temperature gradient is disclosed. The method comprises the steps of providing a metal alloy feedstock including a first metal alloy with a first melting point and a second metal alloy with a second melting point that is higher than the first melting point, the first metal alloy and the second metal alloy providing a gradient in composition of solids to liquids paralleling the temperature gradient of the heated barrel, feeding the first metal alloy and the second metal alloy into the plastics injection molding machine, heating the first metal alloy and the second metal alloy within the plastics injection molding machine to about 500-700° F./260-372° C.; and forming an equilibrium of about 5% to about 30% solids to liquids between the first metal alloy and second metal alloy within the heated barrel.
    Type: Application
    Filed: October 25, 2013
    Publication date: February 27, 2014
    Applicant: COOL POLYMERS, INC.
    Inventors: Kevin A. McCullough, James D. Miller
  • Publication number: 20140041825
    Abstract: There is provided a machine for forming metal bars particularly suitable for melting and the subsequent continuous solidification of precious metal such as gold, silver, precious alloys, as well as other pure metals or different alloys, in the form of powder, grits or swarf of various sizes, for producing ingots having weights varying from 50 g to 50 kg. The machine having six operating stations arranged in succession.
    Type: Application
    Filed: March 29, 2012
    Publication date: February 13, 2014
    Applicant: IECO KEEPS ON IMPROVING S.R.L.
    Inventor: Giovanni Faoro
  • Publication number: 20130305853
    Abstract: A three shaft adjustment mechanism including a drive part which can be connected to a drive shaft in a rotationally fixed manner, a driven part which can be connected to a driven shaft, and an actuator which can be connected to an adjustment shaft as a mechanism part. A mechanical stop for defining an adjustment angle between the drive shaft and driven shaft is provided between two of the three shafts. According to the invention, the mechanism part not involved in the stop has a mass distribution or form which is such that a quotient from its mass moment of inertia J and its partial radius r is smaller than 0.4 kg×mm. The invention also relates to a method for producing a shaft generator having this type of mechanism.
    Type: Application
    Filed: December 1, 2011
    Publication date: November 21, 2013
    Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Jens Schaefer, Mike Kohrs, Jeffrey S. Balko
  • Publication number: 20130220568
    Abstract: In a process for producing die-cast parts made of an aluminum alloy, the aluminum alloy is exposed to high shearing forces in a mixing and kneading machine, is removed as partially solid aluminum alloy with a predefined solids content, is transferred into a filling chamber of a die-casting machine and is introduced into a casting mold using a piston, wherein a solids content of the aluminum alloy in a working space of the mixing and kneading machine is set to a predefined solids content by cooling and heating the working space in a targeted manner.
    Type: Application
    Filed: August 19, 2010
    Publication date: August 29, 2013
    Applicant: RHEINFELDEN ALLOYS GMBH & CO. KG
    Inventor: Rudiger Franke
  • Patent number: 8496044
    Abstract: A method of manufacturing a massive mixture of aluminum nitride and aluminum includes a first heat treatment process of manufacturing the massive mixture of aluminum nitride and aluminum by heating aluminum powder (21) and aluminum pieces (20) inserted into a vessel (13) at a temperature of a melting point of aluminum or higher under a nitrogen atmosphere. An oxide film is formed over the surface of the aluminum powder (21). The oxide film is, for example, a natural oxide film. The weight ratio of the aluminum powder (21) to the aluminum pieces (20) is, for example, 0.1 or less.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: July 30, 2013
    Assignee: Tama-TLO Ltd
    Inventors: Yoshihiro Seimiya, Kanji Otsuka, Ai Mizuno
  • Patent number: 8490674
    Abstract: Methods of forming at least a portion of an earth-boring tool include providing particulate matter comprising a hard material in a mold cavity, melting a metal and the hard material to form a molten composition comprising a eutectic or near-eutectic composition of the metal and the hard material, casting the molten composition to form the at least a portion of an earth-boring tool within the mold cavity, and adjusting a stoichiometry of at least one hard material phase of the at least a portion of the earth-boring tool. Methods of forming a roller cone of an earth-boring rotary drill bit include forming a molten composition, casting the molten composition within a mold cavity, solidifying the molten composition to form the roller cone, and converting an eta-phase region within the roller cone to at least one of WC and W2C.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: July 23, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: John H. Stevens, Jimmy W. Eason
  • Patent number: 8486329
    Abstract: A process for the production of a semi-solidified iron alloy slurry having a crystallized solid phase and a residual liquid phase, wherein a material having a hypoeutectic cast iron composition is used, and an additive agent having a boiling point that is lower than at least a crystallization initiation temperature of primary crystals of the material is added to a melt of the material when the melt temperature is within a specific temperature range of not lower than the crystallization initiation temperature of the primary crystals and not greater than a temperature that is 50° C. higher than the crystallization initiation temperature, to thereby simultaneously conduct the stirring of the melt by the boiling of the additive agent and the cooling of the melt to a temperature falling within a semi-solidification temperature range thereof.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: July 16, 2013
    Assignee: Kogi Corporation
    Inventors: Syuichi Shikai, Yasushi Fujinaga, Minoru Sasaki, Toshio Ohkado, Susumu Nishikawa
  • Publication number: 20130146188
    Abstract: The present invention is concerned with a method of manufacturing an aluminum-containing composition, wherein the composition having substantially 0.4 wt % silicon, 0.7 wt % iron, 0.2 wt % copper, 0.1 wt % manganese, 1.1-1.8 wt % magnesium, 0.1 wt % chromium, 0.25 wt % zinc and 96.45-97.15 wt % aluminum, or being Aluminum 5050 as defined by the International Alloy Designations and Chemical Composition Limits for Wrought Aluminum and Wrought Aluminum Alloys of the Aluminum Association. The method comprises a casting step, an extrusion step, and an anodizing step.
    Type: Application
    Filed: December 12, 2011
    Publication date: June 13, 2013
    Inventor: ZI SHEN LEI
  • Publication number: 20130149188
    Abstract: A C+N austenitic stainless steel includes 15 to 20% by weight of chromium (Cr), 8 to 12% by weight of manganese (Mn), 3% or less by weight of nickel (Ni), and 0.5 to 1.0% by weight of a total content (C+N) of carbon (C) and nitrogen (N), remainder iron (Fe), and other inevitable impurities. A ratio (C/N) of the carbon (C) to the nitrogen (N) ranges from 0.5 to 1.5.
    Type: Application
    Filed: December 7, 2012
    Publication date: June 13, 2013
    Applicant: Korea Institute of Machinery & Materials
    Inventor: Korea Institute of Machinery & Materials
  • Patent number: 8418747
    Abstract: An inoculant feeding method and apparatus in which a desired amount of inoculants can be fed into molten metal poured into a mold by an automatic molten metal pouring machine, and an automatic molten metal pouring machine using the apparatus. An inoculant feeding apparatus (1) feeds inoculants into molten metal poured into a mold (2) from an automatic molten metal pouring machine (20), at a predetermined proportion corresponding to the amount of the poured molten metal which gradually varies. The apparatus (1) is provided with a hopper (8) which is attached to a truck (6) and which stores the inoculants, a screw conveyor (9) attached to a lower end of the hopper, a drive mechanism (10) which is attached to a base end of the screw conveyor and which drives the screw driver, and a controller (30) which controls the drive mechanism.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: April 16, 2013
    Assignees: Sintokogio Ltd., Fujiwa Denki Co., Ltd.
    Inventor: Hideto Terada
  • Publication number: 20120298322
    Abstract: A casting apparatus and a method of forming a casting using the casting apparatus is disclosed, the casting apparatus comprising a ladle having a hollow interior adapted to receive a molten material therein; a nozzle in fluid communication with the hollow interior, the nozzle having a first portion disposed outside of the ladle and a second portion disposed within the hollow interio; an additive feeder in fluid communication with the hollow interior of the ladle; and a gas conduit in fluid communication with the hollow interior of the ladle.
    Type: Application
    Filed: May 25, 2011
    Publication date: November 29, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Christopher D. Cogan, Stephen M. Fitch, Qigui Wang
  • Patent number: 8302667
    Abstract: The present invention provides tough cast iron and cast iron semi-finished products excellent in workability without heat treatment requiring massive heat energy and long time and a method of production enabling these to be efficiently produced, that is, cast iron of ingredients of white cast iron where particles of spheroidal graphite or flattened graphite are dispersed, cast iron where the ingredients of the white cast iron satisfy, by wt %, (% C)?4.3?(% Si)÷3 and C?1.7% and where the particles of spheroidal graphite are dispersed at a density of 50 particles/mm2 or more, or cast iron where the particles of flattened graphite have a width of 0.4 mm or less and a length of 50 mm or less.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: November 6, 2012
    Assignee: Nippon Steel Corporation
    Inventors: Hideaki Yamamura, Wataru Ohashi
  • Patent number: 8297340
    Abstract: Process for producing ductile iron by treating liquid iron with an initializer which is a ferrosilicon alloy comprising an effective amount of barium sufficient to inactivate the oxygen activity of the liquid iron. This is followed at a predetermined time thereafter by treating the liquid iron with a magnesium containing nodularizer, followed by treating the liquid iron with a eutectic graphite nucleation-inducing inoculant, and casting the iron.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: October 30, 2012
    Assignee: Foseco International Limited
    Inventor: Emmanuel Berthelet
  • Publication number: 20120219452
    Abstract: A copper alloy having an electrical resistivity lower than those of current copper alloys and a tensile strength higher than those of current copper alloys and a method of manufacturing such a copper alloy are provided. The copper alloy is produced by adding a predetermined amount of carbon to a molten copper in a high-temperature environment of a temperature in the range of 1200° C. to 1250° C. such that the copper alloy has a carbon content in the range of 0.01% to 0.6% by weight.
    Type: Application
    Filed: September 3, 2010
    Publication date: August 30, 2012
    Applicants: UNIVERSITY OF TSUKUBA, SHIROGANE CO., LTD.
    Inventors: Yoshihito Ijichi, Kenichi Ohshima
  • Publication number: 20120195789
    Abstract: The present invention relates magnesium-aluminum based alloys having a small grain size and to a method of their production. The alloys are particularly useful in casting applications. The alloys comprise a grain refiner, the grain refiner having the chemical formula: Mg100-x-y-zAlxCyRz wherein R is an element selected from the group consisting of silicon, calcium, strontium or a rare earth element, x is from 10 to 60 At. %, y is from 5 to 50 At. %, and z is from 0 to 20 At. %, provided that x+y+z is less than 100 At. %.
    Type: Application
    Filed: January 18, 2012
    Publication date: August 2, 2012
    Applicant: Helmholtz-Zentrum Geesthacht Zentrum für Material-und Küstenforschung GmbH
    Inventors: Yuanding Huang, Qiuming Peng, Norbert Hort, Karl U. Kainer
  • Publication number: 20120167715
    Abstract: In order to provide a molten metal in a melting furnace with at least one alloy component or to increase the portion of the latter in the molten metal, a blank mixture has an alloy element containing the alloy component or being made of the latter, from water and a binding agent, and the blank mixture is processed into an alloy blank that can be placed in the melting furnace. At least as much water is added so that the blank mixture can be poured, and at least as much binding agent is added so that the alloy blank has a strength of at least 4/Nmm2 after at the latest seven days setting time at 20° C., preferably at least 5 N/mm2. The blank mixture is poured into a casting mold and setting takes place without applying external pressing, with the alloy blank thus produced being removed from the mold.
    Type: Application
    Filed: July 8, 2011
    Publication date: July 5, 2012
    Inventor: Daniel Thomy
  • Patent number: 8210231
    Abstract: There is produced a molten steel containing, in mass %, Si: not less than 0.1% nor more than 7.0%, Mn: 0.1% or more, Al: not less than 0.2% nor more than 5.0%, Cr: not less than 0.1% nor more than 10%, and the like, and a balance composed of Fe and inevitable impurities. To the molten steel, REM: not less than 0.0005% nor more than 0.03% is added. The molten steel to which REM has been added is casted. A cast slab of non-oriented electrical steel is manufactured as above.
    Type: Grant
    Filed: July 3, 2009
    Date of Patent: July 3, 2012
    Assignee: Nippon Steel Corporation
    Inventors: Masafumi Miyazaki, Yousuke Kurosaki, Takahide Shimazu, Kazuo Ohnuki
  • Patent number: 8201614
    Abstract: A method of controlling composition of a molten copper or a molten copper alloy during continuous cast, comprising the steps of determining continuously specific resistance of the molten copper or the molten copper alloy; calculating the composition of the molten copper or the molten copper alloy based on relationships between specific resistance of the molten copper or the molten copper alloy and each constituent which are preliminarily comprehended; and controlling the composition of the molten copper or the molten copper alloy based on the calculated composition. It is possible to consider temperature or content of dissolved oxygen to calculate the composition.
    Type: Grant
    Filed: November 28, 2008
    Date of Patent: June 19, 2012
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Hirokazu Yoshida, Tsukasa Takazawa, Shuji Tomimatsu
  • Patent number: 8176966
    Abstract: A process for producing a copper alloy material from a copper alloy of a precipitation reinforced type, which contains a process to perform individually a dissolution of a pure copper and a dissolution of an additional element or a mother alloy containing the same, comprises the steps of: melting an element and/or a mother alloy at a same time, that is selected from a Ni, a Co, an Si, a Ni—Cu mother alloy, a Co—Cu mother alloy, an Si—Cu mother alloy, a Ni—Si—Cu mother alloy, and a Co—Si—Cu mother alloy with combining therebetween, and melting thereof with an assistance of a generation of a heat of mixing, in a case of forming a high density melt containing at least either one of the Ni or the Co, and the Si, as high density thereof; forming the high density melt as a content of the Ni to be 80 mass % at maximum; and forming an alloy molten metal having a predetermined component and concentration, by adding the melt into a pure copper molten metal to be supplied from another melting furnace.
    Type: Grant
    Filed: November 28, 2008
    Date of Patent: May 15, 2012
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Hirokazu Yoshida, Tsukasa Takazawa, Toshio Abe, Shuji Tomimatsu
  • Publication number: 20120097355
    Abstract: Disclosed are an inoculant feeding method and apparatus, wherein a desired amount of inoculants can be fed into a molten metal poured into a mold by an automatic molten metal pouring machine, and an automatic molten metal pouring machine using the apparatus. An inoculant feeding apparatus (1) feeds inoculants into a molten metal poured into a mold (2) from an automatic molten metal pouring machine (20), at a predetermined proportion corresponding to the amount of the poured molten metal which gradually varies. The apparatus (1) is provided with a hopper (8) which is attached to a truck (6) and which stores the inoculants, a screw conveyor (9) attached to a lower end of the hopper, a drive mechanism (10) which is attached to a base end of the screw conveyor and which drives the screw driver, and a controller (30) which controls the drive mechanism.
    Type: Application
    Filed: June 15, 2010
    Publication date: April 26, 2012
    Inventor: Hideto Terada
  • Patent number: 8096346
    Abstract: A method of casting a base of high-power wind turbines with low-temperature nodular graphite iron, using furan resin sand as the mold sand and having no risers or chills in the mold. The mold undergoes microseismic compaction and has no chills risers. The parting face of the mold is perpendicular to the ground. The molten iron in the mold is solidified evenly. Therefore, shrinkage holes and disperse shrinkages base are reduced greatly and the dregs and air are discharged easily for the base. The pouring system designed together with a reasonable pouring rate and time make the filtering system useful for blocking dregs.
    Type: Grant
    Filed: February 1, 2009
    Date of Patent: January 17, 2012
    Assignee: Jiangsu Jixin Wind Energy Technology Co., Ltd.
    Inventors: Yongluo Hua, Jianhong Wang, Yufang Chen, Qiang Wang, Yuebing Wu
  • Publication number: 20120003115
    Abstract: A process for the production of a semi-solidified iron alloy slurry having a crystallized solid phase and a residual liquid phase, wherein a material having a hypoeutectic cast iron composition is used, and an additive agent having a boiling point that is lower than at least a crystallization initiation temperature of primary crystals of the material is added to a melt of the material when the melt temperature is within a specific temperature range of not lower than the crystallization initiation temperature of the primary crystals and not greater than a temperature that is 50° C. higher than the crystallization initiation temperature, to thereby simultaneously conduct the stirring of the melt by the boiling of the additive agent and the cooling of the melt to a temperature falling within a semi-solidification temperature range thereof.
    Type: Application
    Filed: March 12, 2009
    Publication date: January 5, 2012
    Applicant: Kogi Corporation
    Inventors: Syuichi Shikai, Yasushi Fujinaga, Minoru Sasaki, Toshio Ohkado, Susumu Nishikawa
  • Publication number: 20110303866
    Abstract: The present disclosure relates to a magnesium based composite material. The magnesium based composite material includes a magnesium based metal matrix and nanoparticles dispersed in the magnesium based metal matrix in a weight percentage of a range from about 0.01% to about 2%. The present disclosure also relates to a method for making the magnesium based composite material. In the method, the nanoparticles are added to the magnesium based metal at a temperature of about 460° C. to about 580° C. to form a mixture. The mixture is ultrasonically vibrated at a temperature of about 620° C. to about 650° C. The mixture is casted at a temperature of about 650° C. to about 680° C., to form an ingot.
    Type: Application
    Filed: December 26, 2010
    Publication date: December 15, 2011
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., TSINGHUA UNIVERSITY
    Inventors: WEN-ZHEN LI, HWANG-MIAW CHEN
  • Publication number: 20110300404
    Abstract: An oxidation resistant component with high temperature strength and a method of creating such component are disclosed. A modified base metal may be formed by adding at least two strengthening additives to a base metal, the base metal being substantially free from both nickel and cobalt and comprising from about 1% to about 27% chromium by weight. The modified base metal may then be formed into a component and an aluminum-containing slurry may be applied to a surface of the component. The component may then be heated to diffuse aluminum into the component and to form an aluminum diffusion surface layer therein.
    Type: Application
    Filed: June 3, 2010
    Publication date: December 8, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: George Albert Goller, Dennis William Cavanaugh
  • Publication number: 20110284179
    Abstract: Methods of forming at least a portion of an earth-boring tool include providing particulate matter comprising a hard material in a mold cavity, melting a metal and the hard material to form a molten composition comprising a eutectic or near-eutectic composition of the metal and the hard material, casting the molten composition to form the at least a portion of an earth-boring tool within the mold cavity, and adjusting a stoichiometry of at least one hard material phase of the at least a portion of the earth-boring tool. Methods of forming a roller cone of an earth-boring rotary drill bit comprise forming a molten composition, casting the molten composition within a mold cavity, solidifying the molten composition to form the roller cone, and converting an eta-phase region within the roller cone to at least one of WC and W2C.
    Type: Application
    Filed: May 19, 2011
    Publication date: November 24, 2011
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: John H. Stevens, Jimmy W. Eason
  • Publication number: 20110185993
    Abstract: A method to produce cast iron articles with various graphite morphologies is disclosed that provides cast iron with tailored properties at different locations of the article. Flake graphite morphology is preferably created at locations requiring excellent thermal conductivity or lubricity. Spheroidal graphite morphology is preferably created at locations requiring excellent strength or mechanical fatigue life. These methods may be particularly valuable for the production of heavy duty diesel engine components.
    Type: Application
    Filed: January 28, 2011
    Publication date: August 4, 2011
    Applicant: Caterpillar Inc.
    Inventors: Marvin G. McKimpson, James O. Barlow, George B. Kokos
  • Publication number: 20110154952
    Abstract: The present disclosure provides a method for making magnesium-based composite material. The method comprises the following steps. Firstly, a semi-solid-state magnesium-based material is provided. Secondly, at least one nanoscale reinforcement is added into the semi-solid-state magnesium-based material to obtain a semi-solid-state mixture. Thirdly, the semi-solid-state mixture is heated to a liquid-state mixture. Fourthly, the liquid-state mixture is ultrasonically processed. Fifthly, the liquid-state mixture is cooled to obtain the magnesium-based composite material.
    Type: Application
    Filed: July 10, 2010
    Publication date: June 30, 2011
    Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: WEN-ZHEN LI, SHI-YING LIU
  • Publication number: 20110154953
    Abstract: The present disclosure provides a method for making aluminum-based composite material. The method includes the following steps. First, a aluminum-based material in semi-solid state is provided. Second, at least one nanoscale reinforcement is added into the aluminum-based material in semi-solid state to obtain a mixture in semi-solid state. Third, the mixture in semi-solid state is heated to a mixture in liquid state. Fourth, the mixture in liquid state is ultrasonically processed. Fifth, the mixture in liquid state is cooled to obtain the aluminum-based composite material.
    Type: Application
    Filed: July 10, 2010
    Publication date: June 30, 2011
    Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: WEN-ZHEN LI, SHI-YING LIU
  • Publication number: 20110056645
    Abstract: A method of manufacturing a massive mixture of aluminum nitride and aluminum includes a first heat treatment process of manufacturing the massive mixture of aluminum nitride and aluminum by heating aluminum powder (21) and aluminum pieces (20) inserted into a vessel (13) at a temperature of a melting point of aluminum or higher under a nitrogen atmosphere. An oxide film is formed over the surface of the aluminum powder (21). The oxide film is, for example, a natural oxide film. The weight ratio of the aluminum powder (21) to the aluminum pieces (20) is, for example, 0.1 or less.
    Type: Application
    Filed: March 25, 2009
    Publication date: March 10, 2011
    Applicant: TAMA-TLO LTD.
    Inventors: Yoshihiro Seimiya, Kanji Otsuka, Ai Mizuno
  • Publication number: 20110002809
    Abstract: A low lead brass alloy and a method for producing a product comprising the low lead brass alloy are proposed. The low lead brass comprises 0.05 to 0.3 wt % of lead (Pb); 0.3 to 0.8 wt % of aluminum (Al); 0.01 to 0.4 wt % of bismuth (Bi); 0.1 to 0.15 wt % of microelements; and more than 97.5 wt % of copper (Cu) and zinc (Zn), wherein copper is in an amount ranging from 58 to 70 wt %.
    Type: Application
    Filed: September 4, 2009
    Publication date: January 6, 2011
    Applicant: MODERN ISLANDS CO., LTD.
    Inventors: Wen Lin Lo, Wei Te Wu, Xiao Ming Peng