Coating Mold Surface With A Treating Agent Patents (Class 164/72)
  • Patent number: 10898946
    Abstract: In a semiconductor-mounting heat dissipation base plate including: an insulating substrate to which a metal circuit layer for mounting a semiconductor chip thereon is fixed; a heat dissipation base formed from the same metal material as the metal circuit layer at a side opposite to the metal circuit layer across the insulating substrate and fixed to the insulating substrate similar to the metal circuit layer; and a strengthening member provided in the heat dissipation base so as to be separated from the insulating substrate, the sizes of crystal grains of a metal structure at a part of the heat dissipation base or the metal circuit layer are reduced by a crystal size reducing material adhered to a mold, thereby preventing an adverse effect of a columnar crystal structure.
    Type: Grant
    Filed: May 29, 2017
    Date of Patent: January 26, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Keisuke Tanaka, Daisuke Oya, Mikio Ishihara, Tatsuya Iwasa, Koji Saito, Yuki Wakabayashi
  • Patent number: 10773299
    Abstract: A method for die casting a metal alloy in a cavity, implementing a mold comprising an induction heater to heat the molding surfaces of the cavity. The cavity is filled with the metal alloy by injection and preheated to a nominal preheating temperature T1. The metal in the cavity is solidified. The mold is opened and the part is ejected therefrom. The molding surfaces of the cavity are heated by induction while the part is no longer in contact with said surfaces. The molding surfaces of the cavity are sprayed, the mold being opened, by a release agent. The mold is closed and the cavity is heated the temperature T1.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: September 15, 2020
    Assignee: ROCTOOL
    Inventor: José Feigenblum
  • Patent number: 9938600
    Abstract: A hardened formed part is manufactured with the steps: producing a blank from a hardenable strip material; heating of the blank to an austenitization temperature; forming and hardening of the blank to a hardened formed part; cleaning the hardened formed part; coating the hardened formed part with a metallic coating in an dipping bath with an electrolyte solution, wherein during the coating process, at least one auxiliary element is used in the dipping bath, such, that the deposition of the coating is partially influenced. A plant is used for manufacturing a hardened formed part.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: April 10, 2018
    Assignee: Muhr und Bender KG
    Inventors: Thomas Muhr, Jorg Dieter Brecht, Christoph Schneider, Philip Beiter
  • Patent number: 9822436
    Abstract: The invention relates to a method for the production and removal of a temporary protective layer for a cathodic coating, particularly for the production of a hardened steel component with an easily paintable surface, wherein a steel sheet made of a hardenable steel alloy is subjected to a preoxidation, wherein said preoxidation forms a FeO layer with a thickness of 100 nm to 1,000 nm and subsequently a melt dip coating is conducted, wherein, during the melt dip coating, a zinc layer is applied having a thickness of 5 to 20 ?m, preferably 7 to 14 ?m, on each side, wherein the melt dip process and the aluminum content of the zinc bath is adjusted such that, during the melt dip coating, an aluminum content for the barrier layer results of 0.15 g/m2 to 0.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: November 21, 2017
    Assignee: voestalpine Stahl GmbH
    Inventors: Martin Peruzzi, Josef Faderl, Siegfried Kolnberger, Werner Brandstatter
  • Patent number: 9109183
    Abstract: Lubricating compositions for use in the casting of steel, in particular in continuous casting processes are provided. Methods for making and using such compositions are also provided.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: August 18, 2015
    Assignee: PROSIMET S.p.A.
    Inventor: Riccardo Carli
  • Patent number: 9022093
    Abstract: A method of casting a semi-liquid or semi-solid iron-based alloy, the method including: applying, to a part or to the whole of an uppermost surface of an inner surface of a die, a lubricating die-release agent in which particles including at least one selected from molybdenum disulfide, graphite, tungsten disulfide, boron nitride, chrome oxide and boric oxide are dispersed in a solvent; and thereafter casting by using the die.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: May 5, 2015
    Assignee: Nippon Steel & Sumitomo Corporation
    Inventor: Yoshiaki Shia
  • Patent number: 9017824
    Abstract: Disclosed is an aluminum-diamond composite having both high thermal conductivity and thermal expansion coefficient close to those of semiconductor elements, which is improved in platability in the surface and surface roughness so that the composite becomes suitable for use as a heat sink of a semiconductor element of the like. Specifically disclosed is a plate-like aluminum-diamond composite containing diamond particles and a metal mainly composed of aluminum. The aluminum-diamond composite is composed of a composite part and surface layers formed on both sides of the composite part, and the surface layers are composed of a material containing a metal mainly composed of aluminum. The diamond particle content is 40-70% by volume of the entire aluminum-diamond composite.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: April 28, 2015
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Hideki Hirotsuru, Hideo Tsukamoto
  • Publication number: 20150083357
    Abstract: A molding apparatus (30) is configured so as to form a molten metal holding space (41a) by dividing the inside of a connecting portion (41) into the molten metal holding space (41a) and a molten metal supply port-side space (41b) by closing an on-off valve (42), and pump up molten metal (5) from a molten metal furnace (50) into the molten metal holding space (41a) of the connecting portion (41) with a pump (40). Then a pressure of the molten metal (5) that has been pumped up into the molten metal holding space (41a) is reduced by a pressure-reducing portion, and the molten metal holding space (41a) inside the connecting portion (41) is communicated with a molten metal supply port (6) of an injection sleeve (2) by opening the on-off valve (42), and the molten metal (5), the pressure of which has been reduced in the molten metal holding space (41a), is supplied into the injection sleeve (2).
    Type: Application
    Filed: March 13, 2013
    Publication date: March 26, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Makoto Kikuchi
  • Patent number: 8826966
    Abstract: A tubular melt containment member for transient containment of molten metals and alloys, especially reactive metals and alloys, includes a melt-contacting layer or region that comprises an oxygen-deficient rare earth oxide material that is less reactive as compared to the counterpart stoichiometric rare earth oxide. The oxygen-deficient (sub-stoichiometric) rare earth oxide can comprise oxygen-deficient yttria represented by Y2O3-x wherein x is from 0.01 to 0.1. Use of the oxygen-deficient rare earth oxide as the melt-contacting layer or region material reduces reaction with the melt for a given melt temperature and melt contact time.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: September 9, 2014
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Joel R. Rieken, Andrew J. Heidloff
  • Publication number: 20140224444
    Abstract: The present invention provides processes for die casting metals which are more energy efficient and less expensive than the current metal die casting processes. The die casting processes discussed herein utilize a water-soluble die release fluid and hydraulic equipment which uses water-insoluble hydraulic fluid. By doing so, the hydraulic fluid and die release fluid present in the waste collected from the die casting process can be collected via separation techniques. One or both of the collected hydraulic fluid and die release fluid may then be re-used in the same die casting process, another die casting process, or another processes altogether.
    Type: Application
    Filed: March 23, 2012
    Publication date: August 14, 2014
    Applicant: HOUGHTON TECHNICAL CORP.
    Inventors: John Michael Burke, Alan Edward Cross
  • Patent number: 8778076
    Abstract: A foundry coating composition for molds and cores, a process for preparing coated foundry molds and cores, and coated molds and cores obtainable by the process. The foundry coating composition comprises a liquid carrier; a binder; and a particulate refractory filler. The particulate refractory filler comprises a first (relatively coarse) fraction having a particle size of d>38 ?m and a second (relatively fine) fraction having a particle size of d<38 ?m. No more than 10% of the total particulate refractory filler has a particle size of 38 ?m<d<53 ?m and no more than 50% of the second (relatively fine) fraction is constituted by calcined kaolin. The foundry coating composition is applied to molds and cores to assist in the removal of the casting from the mold and prevention of casting defects.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: July 15, 2014
    Assignee: Foseco International Limited
    Inventors: Martinus Jacobus Haanepen, Frederik Willem Von Piekartz
  • Patent number: 8662146
    Abstract: The present invention provides a structure for casting containing an organic fiber, an inorganic fiber, inorganic particles (A) having an average particle diameter of 50 to 150 ?m, and a binder (a), having a surface layer containing refractory inorganic particles (B) having an average particle diameter of 1 to 100 ?m selected from metal oxides and metal silicates, a clay mineral, and a binder (b), on the surface of the structure.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: March 4, 2014
    Assignee: Kao Corporation
    Inventor: Haruki Ikenaga
  • Patent number: 8641839
    Abstract: The present invention relates to materials, methods and apparatuses for performing imprint lithography using amorphous metallic materials. The amorphous metallic materials can be employed as imprint media and thermoplastic forming processes are applied during the pattern transfer procedure to produce micron scale and nanoscale patterns in the amorphous metallic layer. The pattern transfer is in the form of direct mask embossing or through a serial nano-indentation process. A rewriting process is also disclosed, which involves an erasing mechanism that is accomplished by means of a second thermoplastic forming process. The amorphous metallic materials may also be used directly as an embossing mold in imprint lithography to allow high volume imprint nano-manufacturing. This invention also comprises of a method of smoothening surfaces under the action of the surface tension alone.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: February 4, 2014
    Assignee: Yale University
    Inventors: Jan Schroers, Golden Kumar, Hongxing Tang
  • Patent number: 8584732
    Abstract: A method for making parts in conjunction with a mold having a negative shape of the part. The mold is coated with a release agent and thereafter the part material is deposited on the release agent in the mold by gas dynamic cold spray. Thereafter, the release agent is separated from both the mold and the part either thermally, chemically, or mechanically.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: November 19, 2013
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Matthew D. Trexler, Victor K. Champagne
  • Publication number: 20130294901
    Abstract: A method of component forming according to an exemplary aspect of the present disclosure includes, among other things, positioning a metal powder in a mold cavity, melting the metal powder within the mold cavity, and cooling the melted metal powder to form a component.
    Type: Application
    Filed: May 1, 2012
    Publication date: November 7, 2013
    Inventors: Sergey Mironets, Wendell V. Twelves, Agnes Klucha
  • Publication number: 20130269901
    Abstract: Embodiments provide methods, apparatuses and systems for depositing a thermal insulator coating onto a desired surface of a mold cavity or insert or preform. Embodiments also provide casting methods using a thermal insulator coating.
    Type: Application
    Filed: March 15, 2013
    Publication date: October 17, 2013
    Inventors: Josh E. Loukus, Adam R. Loukus, Travis Pennala, Luke Luskin
  • Publication number: 20130192789
    Abstract: A process for preparing embossed fine particulate thin metal flakes having high levels of brightness and color intensity. The process comprises forming a release coat on a flexible polymeric carrier film, embossing the release coat with a diffraction grating pattern that is monoruled at an angle above 45°, vacuum metalizing the embossed release surface with a highly reflective metal such as aluminum, and solubilizing the metalized release coat in a solvent for removing the metal from the carrier to form embossed metal flakes that replicate the embossment pattern. The flakes are recovered from the solution containing the solvent and release coat polymer while avoiding high shear, particle sizing or other application of energy that would excessively break up the flakes, so that the D50 particle size of the flakes is maintained at or above 75 microns.
    Type: Application
    Filed: March 12, 2013
    Publication date: August 1, 2013
    Applicant: ECKART AMERICA CORPORATION
    Inventor: ECKART AMERICA CORPORATION
  • Publication number: 20130108501
    Abstract: Films and electronic devices can be released from metallic substrates by: (i) applying a coating of a polysilsesquioxane resin to a metallic substrate, (ii) heating the coated metallic substrate to a temperature sufficient to cure the polysilsesquioxane resin, (iii) applying a polymeric film to the cured coating on the metallic substrate, (iv) further heating the coated metallic substrate to a temperature sufficient to cure the polymeric film, (v) optionally fabricating electronic devices on the polymeric film, and (vi) releasing the polymeric film from the metallic substrate.
    Type: Application
    Filed: December 12, 2012
    Publication date: May 2, 2013
    Applicant: Dow Corning Corporation
    Inventor: Dow Corning Corporation
  • Patent number: 8418744
    Abstract: A molten metal casting die having a modified surface, a method for making such dies, and a method for making articles of manufacture from such dies is disclosed. The methods are designed to protect die steel surfaces having a protective coating from corrosion by molten metals substantially containing liquid copper.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: April 16, 2013
    Assignee: Nonferrous Materials Technology Development Centre
    Inventors: Krishnamurty Balasubramanian, Radha Madhab Mohanty
  • Patent number: 8413708
    Abstract: A surface treatment method includes covering a surface of a casting mold with a carbon film containing at least one type of nanocarbon selected from the group including carbon nanocoils, carbon nanotubes and carbon nanofilaments, and further applying fullerenes to that surface. With this surface treatment method being performed on a surface (a cavity surface, etc. of a casting mold) making contact with a molten casting material such as aluminum, etc., sticking of the molten casting material to the mold is inhibited, release resistance of the product is reduced, and release effectiveness is improved. The release effectiveness lasts longer than in the case of a conventional carbon film.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: April 9, 2013
    Assignees: Toyota Jidosha Kabushiki Kaisha, MEC International Co., Ltd.
    Inventors: Yuichi Furukawa, Fumio Kawahara, Hidenori Matsuoka, Hitoshi Kabasawa
  • Patent number: 8408276
    Abstract: An organo-modified silicone obtained by an addition reaction of (I) a chain silicone represented by formula (1): wherein the formula (1), R1s represent hydrocarbon groups having 1 to 3 carbon atoms, and a and b are numbers satisfying conditions represented by the following formulae (i) to (iii): 0?a?195??(i) 5?b??(ii) 10?a+b?200??(iii), with (II) a hydrocarbon such as monoolefins and aromatic hydrocarbons, and (III) a di(meth)acrylic acid ester, at a molar ratio satisfying conditions represented by the following formula (iv): {the chain silicone}:{the hydrocarbon}:{the di(meth)acrylic acid ester}=A:B:C??(iv) wherein the formula (iv), A represents a number of moles of the chain silicone, and B and C are numbers satisfying conditions represented by the following formulae (v) and (vi): 0.05A?C?A??(v) A×b?2C=B??(vi) in the presence of a hydrosilylation catalyst.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: April 2, 2013
    Assignee: Nicca Chemical Co., Ltd.
    Inventor: Takahiro Kondou
  • Publication number: 20130068410
    Abstract: The invention enables thin film particles of a controlled shape and size to be generated directly upon release of a thin film coating from a textured Substrate upon which they are grown directly. The substrate comprises an array of discrete, steep sided plateaus of a selected size and shape, from which discrete particles of a corresponding shape and size are releasable usually by means of an intermediate release layer coating on the plateaus. The process is readily scalable for high volume production and permits monomodal or multimodal particle size distributions. Such particles may be used as specialised pigments in the security, anti-counterfeiting, defence and cosmetics industries.
    Type: Application
    Filed: August 20, 2010
    Publication date: March 21, 2013
    Applicant: QINETIQ LIMITED
    Inventors: David Edward Higgins, Peter Gerald Lederer, Andrew Martin Pitt, Siân Donohue
  • Patent number: 8387679
    Abstract: A reduced size vacuum die-casting machine wherein an amount of powder release agent which is fed to a mold cavity each time is stable and loss of velocity of the air flow for sucking out the powder release agent is difficult, the apparatus provided with a powder control valve which has a powder release agent passage through which a powder release agent passes and which moves back and forth inside of a sleeve to switch between a state communicating a discharge hole with a molten metal holding chamber and a state communicating a discharge hole with a powder release agent passage, the powder release agent passage of the powder control valve formed inside of the powder control valve, the inlet and outlet of the powder release agent passage being formed at the outer surface of the powder control valve.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: March 5, 2013
    Assignee: Denso Corporation
    Inventors: Kyohei Inaba, Kenji Yamazaki, Minoru Yamamoto, Akihito Mizuno
  • Patent number: 8376024
    Abstract: Tubular metal articles such as pipe and cylinder liners are produced by centrifugal casting on a permanent metal mold coated by refractory glass on the active surface. A coating suspension mix is evenly distributed onto the mold to form a uniform layer of insulation on the surface of the mold. The material for the coating comprises of essentially a waterborne suspension mix of glass particles. The suspension is given time to dry on the surface of the mold. The glass particles dispersed in the suspension are both non-crystalline and nonporous. The glass particles in the suspension and forming the coating are not dissolved and do not chemically attract the polar water molecule or cause it to bond to the surface of glass in the suspension or to the mold active surface. Articles cast as such are smooth surfaced and require only limited machining.
    Type: Grant
    Filed: December 31, 2011
    Date of Patent: February 19, 2013
    Inventor: Charles Earl Bates
  • Patent number: 8376023
    Abstract: A die-casting die is provided. The die-casting die may include a cavity forming surface. A part of the cavity forming surface may be coated with a surface treatment layer. The surface treatment layer may include a mixture of fibrous carbon and particle carbon and have a thermal conductivity that increases in connection to an increase in an acted pressure.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: February 19, 2013
    Assignees: Toyota Jidosha Kabushiki Kaisha, MEC International Co., Ltd.
    Inventors: Yuichi Furukawa, Fumio Kawahara, Yasushi Iwata, Hiroaki Iwahori, Jun Yaokawa, Atsuto Okamoto
  • Publication number: 20130032689
    Abstract: A foundry coating composition for moulds and cores, a process for preparing coated foundry moulds and cores, and coated moulds and cores obtainable by the process. The foundry coating composition comprises a liquid carrier; a binder; and a particulate refractory filler. The particulate refractory filler comprises a first (relatively coarse) fraction having a particle size of d>38 ?m and a second (relatively fine) fraction having a particle size of d<38 ?m. No more than 10% of the total particulate refractory filler has a particle size of 38 ?m<d<53 ?m and no more than 50% of the second (relatively fine) fraction is constituted by calcined kaolin. The foundry coating composition is applied to moulds and cores to assist in the removal of the casting from the mould and prevention of casting defects.
    Type: Application
    Filed: February 15, 2011
    Publication date: February 7, 2013
    Applicant: FOSECO INTERNATIONAL LIMITED
    Inventors: Martinus Jacobus Haanepen, Frederik Willem Von Piekartz, Yvonne von Piekartz-Lutgendorff
  • Patent number: 8327909
    Abstract: A method for the casting of cast parts from an iron melt forming vermicular or spheroidal graphite, includes casting iron melt into a casting mold, which includes at least one casting mold part, which is formed from a mold material, which is mixed from a sand-type basic material and an organic binder, and then gassed with a gas containing sulphur in order to harden the binder, such that a mold part of stable form is obtained. The method provides embodiments in which molds produced in accordance with the SO2 process enable the risk of occurrence of local microstructure degeneration in the cast part to be reduced to a minimum. This is achieved in that, after the hardening of the mold part and before the casting, at least one of the surfaces, which comes into contact with the iron melt, is provided with a coating containing a non-volatile sulphide former.
    Type: Grant
    Filed: July 4, 2008
    Date of Patent: December 11, 2012
    Assignee: Fritz Winter Eisengiesserei GmbH & Co. KG
    Inventor: Jörg Knechten
  • Publication number: 20120304852
    Abstract: Disclosed is a cylinder liner having a high bonding strength to a cylinder block. Further disclosed is a method for producing the same. The cylinder liner uses a silicon-aluminum alloy as a material; a plurality of protrusions are formed on the external surface thereof; and the protrusions each contain a pillar section extending from the external surface, and a head section formed at the end of the pillar section.
    Type: Application
    Filed: March 2, 2011
    Publication date: December 6, 2012
    Applicant: MORESCO CORPORATION
    Inventors: Hiroshi Yamagata, Hidetaka Shima
  • Patent number: 8312913
    Abstract: A method of casting including coating at least a portion of a mold with a non-porous coating, placing the mold in a chamber capable of inducing pressure, and applying pressure to the chamber to press material into a cavity in the mold. Another method of casting including coating at least a portion of a mold with a non-porous coating, placing a first fill tube in a material, applying a vacuum to a second fill tube to establish a vacuum within the non-porous coating, and allowing atmospheric pressure to inject the material into the mold without placing the mold in a chamber capable of inducing pressure.
    Type: Grant
    Filed: February 22, 2006
    Date of Patent: November 20, 2012
    Assignee: Milwaukee School of Engineering
    Inventors: Vito R. Gervasi, Adam J. Schneider, Josh Rocholl, Doug C. Stahl
  • Patent number: 8256493
    Abstract: A surface treatment method includes covering a surface of a casting mold with a carbon film containing at least one type of nanocarbon selected from the group of carbon nanocoils, carbon nanotubes and carbon nanofilaments, and further applying fullerenes to that surface. With this surface treatment method being performed on a surface (a cavity surface, etc. of a casting mold) making contact with a molten casting material such as aluminum, etc., sticking of the molten casting material to the mold is inhibited, release resistance of the product is reduced, and release effectiveness is improved. The release effectiveness lasts longer than in the case of a conventional carbon film.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: September 4, 2012
    Assignees: Toyota Jidosha Kabushiki Kaisha, MEC International Co., Ltd.
    Inventors: Yuichi Furukawa, Fumio Kawahara, Hidenori Matsuoka, Hitoshi Kabasawa
  • Patent number: 8215373
    Abstract: The invention relates to a casting mould for the casting of metals, wherein a layer consisting of a material which absorbs harmful substances on at least sections of gas outlet surfaces of the casting mold, in particular the top side thereof. The invention also relates to a coating composition, to a process for producing the casting mold and to the use thereof for casting of metals.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: July 10, 2012
    Assignee: ASK Chemicals GmbH
    Inventors: Michael Kloskowski, Antoni Gieniec, Reinhard Stötzel
  • Publication number: 20120168108
    Abstract: A casting core assembly includes a metallic core and a ceramic core. The process for forming the casting core assembly includes inserting a ceramic plug of a metallic core and ceramic plug core subassembly into a compartment of the ceramic core. The ceramic plug is secured to the ceramic core.
    Type: Application
    Filed: December 30, 2010
    Publication date: July 5, 2012
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: John R. Farris, Tracy A. Propheter-Hinckley, Douglas C. Jenne, Matthew S. Gleiner, Peter H. Thomas
  • Patent number: 8201611
    Abstract: A method for centrifugal casting using a sand core having a refractory coating applied in a dry state, without the use of a liquid carrier, said coating sufficient to withstand the adverse forces of the centrifugal casting environment and yield a finished cast surface with a consistent, smooth surface. The coating may be applied by pressing the coating into a mixture of refractory material and impacting media fluidized in a vibratory bed such that the core floats in the mixture, and then rotating the core to coat the surfaces that will be in contact with the molten metal in the casting process.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: June 19, 2012
    Assignee: LaempeReich Corporation
    Inventors: David Reich, Harry Reich
  • Publication number: 20120132387
    Abstract: The present invention is directed to composite metal foams comprising hollow metallic spheres and a solid metal matrix. The composite metal foams show high strength, particularly in comparison to previous metal foams, while maintaining a favorable strength to density ratio. The composite metal foams can be prepared by various techniques, such as powder metallurgy and casting.
    Type: Application
    Filed: February 3, 2012
    Publication date: May 31, 2012
    Inventor: Afsaneh Rabiei
  • Publication number: 20120110813
    Abstract: A method for die casting a component includes inserting at least one sacrificial core into a die cavity of a die comprised of a plurality of die elements. Molten metal is injected into the die cavity. The molten metal is solidified within the die cavity to form the component. The plurality of die elements are disassembled from the component, and the at least one sacrificial core is destructively removed from the component.
    Type: Application
    Filed: November 5, 2010
    Publication date: May 10, 2012
    Inventors: Steven J. Bullied, John Joseph Marcin, Dorothea C. Wong
  • Patent number: 8047259
    Abstract: A mold, comprising: a substrate, the substrate having an inside surface and an outside surface; and a ceramic coating formed on at least substantially the entire inside surface, the ceramic coating comprising chromic oxide, silicon dioxide, and alumina. A method for making the present mold is provided.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: November 1, 2011
    Assignees: Shenzhen Futaihong Precision Industry Co., Ltd., FIH (Hong Kong) Limited
    Inventors: Li Long, De-Bao Ma, Chao-Hsun Lin, Da-Wei Ding, Yong-Gang Zhu
  • Publication number: 20110229715
    Abstract: The present invention discloses a hieararchical composite material comprising a ferrous alloy reinforced with titanium carbides according to a defined geometry, in which said reinforced portion comprises an alternating macro-microstructure of millimetric areas concentrated with micrometric globular particles of titanium carbide separated by millimetric areas essentially free of micrometric globular particles of titanium carbide, said areas concentrated with micrometric globular particles of titanium carbide forming a microstructure in which the micrometric interstices between said globular particles are also filled by said ferrous alloy.
    Type: Application
    Filed: August 26, 2009
    Publication date: September 22, 2011
    Applicant: MAGOTTEAUX INTERNATIONAL S.A.
    Inventor: Francesco Vescera
  • Publication number: 20110220313
    Abstract: A method including positioning an insert in a vertical mold including a first mold portion and a second mold portion; and casting a material including a metal around at least a portion of the insert.
    Type: Application
    Filed: May 23, 2011
    Publication date: September 15, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Michael D. Hanna, Mohan Sundar, Andrew Schertzer
  • Publication number: 20110209844
    Abstract: PROBLEMS A method for die-casting that fluidity of molten material is satisfactory and the molten material solidifies with suitable speed is realized. MEANS OF SOLVING THE PROBLEMS A die-casting die 12 comprises a cavity forming surface 9b. A part of the cavity forming surface 9b is coated with a surface treatment layer 24 having a thermal conductivity that increases in connection to an increase in an acted pressure. Satisfactory fluidity is kept at a cavity forming surface 8b coated with the surface treatment layer 24 until a filling of the molten material to the cavity 9 is completed. The molten material is cooled by the cavity forming surface 8b coated with the surface treatment layer 24 increasing the thermal conductivity after the filling of the molten material to the cavity 9 is completed.
    Type: Application
    Filed: October 16, 2009
    Publication date: September 1, 2011
    Applicants: Toyota Jidosha Kabushkiki Kasha, Mec International Co. Ltd
    Inventors: Yuichi Furukawa, Fumio Kawahara, Yasushi Iwata, Hiroaki Iwahori, Jun Yaokawa, Atsuto Okamoto
  • Publication number: 20110123821
    Abstract: Disclosed is an aluminum-diamond composite having both high thermal conductivity and thermal expansion coefficient close to those of semiconductor elements, which is improved in platability in the surface and surface roughness so that the composite becomes suitable for use as a heat sink of a semiconductor element of the like. Specifically disclosed is a plate-like aluminum-diamond composite containing diamond particles and a metal mainly composed of aluminum. The aluminum-diamond composite is composed of a composite part and surface layers formed on both sides of the composite part, and the surface layers are composed of a material containing a metal mainly composed of aluminum. The diamond particle content is 40-70% by volume of the entire aluminum-diamond composite.
    Type: Application
    Filed: July 8, 2009
    Publication date: May 26, 2011
    Applicant: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Hideki Hirotsuru, Hideo Tsukamoto
  • Publication number: 20110088864
    Abstract: A method of casting a semi-liquid or semi-solid iron-based alloy, the method including: applying, to a part or to the whole of an uppermost surface of an inner surface of a die, a lubricating die-release agent in which particles including at least one selected from molybdenum disulfide, graphite, tungsten disulfide, boron nitride, chrome oxide and boric oxide are dispersed in a solvent; and thereafter casting by using the die.
    Type: Application
    Filed: June 15, 2009
    Publication date: April 21, 2011
    Inventor: Yoshiaki Shia
  • Publication number: 20110042029
    Abstract: An object is to propose a mold release agent improving the state of a mold surface by repeating casting cycle so as to extend the life of the metal mold actively, and a casting method using the mold release agent. A water-soluble mold release agent applied on a mold surface of a metal mold contains organic acid or organic acid salt which is reducing and ligand, wherein concentration of a total thereof is not less than 0.01 wt % in using concentration and is not more than a fixed concentration which is stability limit of emulsion of the mold release agent in undiluted concentration. Construction weight ratio of the organic acid or organic acid salt which is reducing and the ligand is in the range from 99/1 to 30/70.
    Type: Application
    Filed: October 23, 2006
    Publication date: February 24, 2011
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, TETRA CO., LTD
    Inventors: Yuichi Furukawa, Toshio Uchida, Setsuyu Hayakawa
  • Publication number: 20100304161
    Abstract: A casting process and apparatus for producing directionally-solidified castings, and castings produced therewith. The process entails applying a facecoat slurry to a surface within a mold cavity to form a continuous solid facecoat on the surface, introducing a molten metal alloy into the mold cavity so that the molten metal alloy contacts the facecoat, and then immersing the mold in a liquid coolant to cool and solidify the molten metal alloy and form a casting of the metal alloy, during which an oxide layer forms on the casting surface. The facecoat is sufficiently adherent to the oxide layer such that at least a portion of the facecoat detaches from the mold surface and remains tightly adhered to the casting surface in the event the casting contracts during cooling. The facecoat contains at least 60 weight percent of a first phase of yttria, and the balance of the facecoat is a binder phase of an inorganic material.
    Type: Application
    Filed: May 29, 2009
    Publication date: December 2, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Shyh-Chin Huang, Stephen Francis Rutkowski, Michael Gigliotti, Roger Petterson
  • Publication number: 20100290946
    Abstract: The invention relates to methods of making articles of semiconducting material on a mold comprising semiconducting material and semiconducting material articles formed thereby, such as articles of semiconducting material that may be useful in making photovoltaic cells.
    Type: Application
    Filed: May 14, 2009
    Publication date: November 18, 2010
    Inventors: Glen Bennett Cook, Christopher Scott Thomas, Natesan Venkataraman
  • Patent number: 7770626
    Abstract: A release agent spray method and apparatus for a die casting machine. As a movable die plate is moved in a die closing direction, a spray head is moved in a perpendicular direction to a spray position. The movable die plate is stopped when it has reached a position at which the distance between the spray head and a die cavity surface of a movable die and the distance between the spray head and die cavity surface of a fixed die both become equal to a spray distance. A release agent is sprayed from the spray head onto the cavity surfaces of the movable die and the fixed die.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: August 10, 2010
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Masaki Yashiro, Hiroshi Yokoyama
  • Patent number: 7766070
    Abstract: A method for operating an automated reciprocator for applying lubricant in a die casting system. As a reciprocator is moved between two die halves and a fluid is applied to the dies with the reciprocator, a safety bar is moved ahead of the reciprocator. Any objects in the path of the reciprocator are detected by contact with the safety bar. If the safety bar contacts an object as the reciprocator is moving down, a sensor signals a control system and the reciprocator is stopped.
    Type: Grant
    Filed: April 13, 2009
    Date of Patent: August 3, 2010
    Assignee: Pace Industries, LLC
    Inventors: David R. Thomason, David E. Bumpus, Danny S. Alford, Olen L. Marshall
  • Patent number: 7744056
    Abstract: There is provided a hard-material-coated member which is suitable as a long-life mold for plastic working of metals and which has a metal as base material and coating layers formed at least on its working plane by physical vapor deposition. At least three layers, i.e., a layer a) as the outermost layer, a layer c) just above the base material and a layer b) between layer a) and the layer c) are formed as coating layers. The hardness values of these layers in terms of hardness symbol HV 0.025 are as follows: 2500>(the hardness of the layer a)>1000, 3500>(the hardness of the layer b)>2300, 2500>(the hardness of the layer c)>1000, (500+the hardness of the layer a)<(the hardness of the layer b), and (500+the hardness of the layer c)<(the hardness of the layer b); the thickness of the layer b) is smaller than that of the layer c); and the total thickness of the coating layers is 5 to 15 ?m.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: June 29, 2010
    Assignee: Hitachi Metals, Ltd.
    Inventors: Kenichi Inoue, Fumiaki Honda
  • Patent number: RE41824
    Abstract: A process for producing a thin die-cast molded article of an aluminum material having a portion having a thickness in the range of 0.4 to 1.2 mm using a mold having a gate having an opening of 0.2 mm or greater and the same as or smaller than the thickness of the portion of the molded article separated from a gate portion, members constituting the gate having been treated by nitrogenation at the surface. The thin die-cast molded article of an aluminum material can be produced efficiently with excellent flow of the melted metal of the aluminum material through the gate portion.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: October 19, 2010
    Assignee: Pleiatech Corporation
    Inventor: Akira Takayanagi
  • Patent number: RE43694
    Abstract: A simple, cost-effective stamping or molding in the nanometer range is enabled using a stamping surface or molding face with a surface layer having hollow chambers that have been formed by anodic oxidation.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: October 2, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Thomas Sawitowski
  • Patent number: RE46606
    Abstract: A simple, cost-effective stamping or molding in the nanometer range is enabled using a stamping surface or molding face with a surface layer having hollow chambers that have been formed by anodic oxidation.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: November 14, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Thomas Sawitowski