Filament Or Wire Casting Patents (Class 164/423)
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Patent number: 12000031Abstract: Provided herein are continuously cast aluminum alloy products exhibiting uniform surface characteristics. The aluminum alloy products have a first surface comprising a width, wherein the first surface comprises an average of 50 exudates or less per square centimeter across the width of the first surface. Also provided herein are methods of making aluminum alloy products having improved surface characteristics. Further provided are methods and systems for manufacturing aluminum alloy products, such as sheets, having reduced surface defects.Type: GrantFiled: March 13, 2019Date of Patent: June 4, 2024Assignee: NOVELIS INC.Inventors: Simon William Barker, Rajasekhar Talla, Sazol Kumar Das, Tudor Piroteala, Milan Felberbaum, Samuel Robert Wagstaff
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Patent number: 10774395Abstract: The invention relates to a method for manufacturing a component made of austenitic manganese alloyed steel using transformation induced plasticity. The component is deformed so that the component has an essentially same thickness of 0.5-2 millimeter in each region of the component, and the component has at least two regions having different mechanical property values.Type: GrantFiled: May 23, 2016Date of Patent: September 15, 2020Assignee: Outokumpu OyjInventors: Thomas Fröhlich, Stefan Lindner
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Patent number: 10589349Abstract: Methods and apparatus for forming high aspect ratio metallic glass objects, including metallic glass sheets and tubes, by a melt deposition process are provided. In some methods and apparatus a molten alloy is deposited inside a channel formed by two substrates moving relative to each other, and shaped and quenched by conduction to the substrates in a manner that enables the molten alloy to vitrify without undergoing substantial shear flow.Type: GrantFiled: March 30, 2016Date of Patent: March 17, 2020Assignees: Glassimetal Technology, Inc., Apple Inc.Inventors: Marios D. Demetriou, Joseph P. Schramm, Georg Kaltenboeck, William L. Johnson
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Patent number: 10589356Abstract: A method for producing a water-atomized metal powder, comprising applying water to a molten metal stream, dividing the molten metal stream into a metal powder, and cooling the metal powder, wherein the metal powder is further subjected to secondary cooling with cooling capacity having a minimum heat flux point (MHF point) higher than the surface temperature of the metal powder in addition to the cooling and the secondary cooling is performed from a temperature range where the temperature of the metal powder after the cooling is not lower than the cooling start temperature necessary for amorphization nor higher than the minimum heat flux point (MHF point).Type: GrantFiled: March 14, 2016Date of Patent: March 17, 2020Assignee: JFE Steel CorporationInventors: Makoto Nakaseko, Yukiko Ozaki, Naomichi Nakamura
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Patent number: 10022786Abstract: A molten metal processing device including an assembly mounted on the casting wheel, including at least one vibrational energy source which supplies vibrational energy to molten metal cast in the casting wheel while the molten metal in the casting wheel is cooled, and a support device holding the vibrational energy source. An associated method for forming a metal product which provides molten metal into a containment structure included as a part of a casting mill, cools the molten metal in the containment structure, and couples vibrational energy into the molten metal in the containment structure.Type: GrantFiled: June 19, 2017Date of Patent: July 17, 2018Assignee: SOUTHWIRE COMPANYInventors: Kevin Scott Gill, Michael Caleb Powell, Victor Frederic Rundquist, Venkata Kiran Manchiraju, Roland Earl Guffey
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Patent number: 9962967Abstract: A recording device includes a conveyance mechanism, a recording mechanism, a rotational mechanism of a plurality of take-up spindles, and a control unit. The conveyance mechanism is configured to convey a recording medium intermittently in a conveyance direction. The recording mechanism is configured to record by reciprocatingly scanning a recording head in a direction that intersects with the conveyance direction. The rotational mechanism is configured to take up the recording medium. The control unit is configured to control the conveyance mechanism and the rotational mechanism to substantially synchronize conveying of the recording medium by the conveyance mechanism and taking-up of the recording medium by the rotational mechanism.Type: GrantFiled: May 31, 2016Date of Patent: May 8, 2018Assignee: Seiko Epson CorporationInventors: Hidemasa Kanada, Masato Mitsuhashi, Koji Higuchi, Toshimitsu Hirai, Mitsuhiro Isobe
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Patent number: 9759489Abstract: A heat treatment apparatus includes: a reaction tube processing a plurality of substrates; a support member supporting the reaction tube; a flange protruding outwardly from a lower end of the reaction tube: a concave portion formed in an outer periphery of the flange; and a rotatable roller installed in a top surface of the support member. The rotatable roller engages the concave portion and positions the reaction tube in a circumferential direction.Type: GrantFiled: September 10, 2013Date of Patent: September 12, 2017Assignee: TOKYO ELECTRON LIMITEDInventor: Hirofumi Kaneko
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Patent number: 9022097Abstract: A method for manufacturing a thin metal strip by pouring and rapidly solidifying molten metal onto a cooling roll rotating at a high speed to form a thin metal strip having a width of 50˜350 mm, blowing compression gas from substantially a tangential direction of the cooling roll toward the thin metal strip to separate the thin metal strip from the cooling roll, adsorbing the separated thin metal strip with a permeable belt of a suction type belt conveyor, and transporting to a take-up reel to wind in form of a coil, the thin metal strip is adsorbed by the belt under conditions that a nearest approaching distance L between the cooling roll and the suction type belt conveyor is 2˜50 mm and a suction width S of a suction box arranged in the suction type belt conveyor is 1.2˜2.5 times of a width W of the thin metal strip.Type: GrantFiled: November 13, 2012Date of Patent: May 5, 2015Assignee: JFE Steel CorporationInventors: MInoru Takashima, Seiji Okabe, Nobuo Shiga
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Publication number: 20150068700Abstract: A casting wheel (1) for manufacturing strands of metals or metal alloys having a peripheral casting channel (2) that is bounded over a partial length by a circulating band (11); below the casting channel (2), a mold bottom (3) being provided for being cooled with a cooling fluid. The inner side (7) of the mold bottom (3) facing away from the casting channel (2) is provided with a profiling (6) that has a profile height of 0.5 to 6 mm.Type: ApplicationFiled: February 22, 2013Publication date: March 12, 2015Inventors: Christof Dratner, Frank Böert
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Publication number: 20150000861Abstract: A method for the continuous casting of a metal strand in a continuous casting installation, in which, in a casting machine, the metal formed into a slab, with a still molten core, is brought out vertically from a mold, wherein, downstream of the mold in the conveying direction, the slab is made to move along a casting bow, through a number of casting bow segments, and is deflected into the horizontal, wherein each casting bow segment has a number of segment rollers, which are designed for coming into contact with the surface of the slab. In the region before the end of the casting machine, a number of segment rollers are lifted off from the surface of the slab, or are not installed in receptacles provided, and so the contact between the slab and the segment roller is interrupted or there is no contact.Type: ApplicationFiled: January 31, 2013Publication date: January 1, 2015Applicant: SMS Siemag AktiengesellschaftInventor: Jürgen Seidel
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Patent number: 8733425Abstract: A casting device for producing semiconductor material foil includes a casting frame and a substrate band. The casting frame is arranged for holding a molten semiconductor material and includes sidewalls of which an exit sidewall is located at an output position for the semiconductor material foil. The exit side wall is provided with an exit slit. The casting device further includes a local force exerting means to exert at the location of the exit slit a locally enlarged external force on the molten semiconductor material to enlarge an outer pressure on the molten material at the exit slit.Type: GrantFiled: February 8, 2011Date of Patent: May 27, 2014Assignee: RGS Development B.V. PettenInventors: Axel Georg Schoenecker, Eric De Jager, Eelko Gelbert Hoek, Pierre-Yves Pichon
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Patent number: 8602086Abstract: A method for producing an amorphous alloy foil strip having a large sheet thickness in an industrial scale includes: a pair of cooling rolls; a driving unit configured to rotate the pair of cooling rolls; and a crucible configured to supply a molten alloy sequentially to an outer circumferential surface of the pair of cooling rolls. The crucible is movable along a moving unit. A molten alloy is supplied alternately to the pair of cooling rolls while rotating and water-cooling the pair of cooling rolls.Type: GrantFiled: October 15, 2012Date of Patent: December 10, 2013Assignee: Nippon Steel & Sumitomo Metal CorporationInventor: Takashi Sato
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Patent number: 8381795Abstract: A casting apparatus is presented. The casting apparatus includes a first chamber and a second chamber. The first chamber includes a crucible and a sealed discharge outlet. The second chamber includes a casting mold for casting a plurality of filaments of a superalloy composition. The second chamber further includes a discharge inlet aligned with the sealed discharge outlet of the first chamber. The casting apparatus further includes a first port for applying a positive pressure to the first chamber and a second port for applying a vacuum to the second chamber. The sealed discharge outlet includes a hermetic seal comprising a material having a melting temperature equal to or greater than a melting temperature of the superalloy composition.Type: GrantFiled: January 27, 2012Date of Patent: February 26, 2013Assignee: General Electric CompanyInventors: Laurent Cretegny, Bernard Patrick Bewlay
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Patent number: 8347948Abstract: Apparatus for preparing alloy sheet, comprising a container for melted alloy liquid positioned in an inductive heating coil; a liquid flow stabilization outfit comprising a barrel container with open bottom and a base board arranged below the open bottom, and the barrel container's upper part being positioned below the mouth of the container for melted alloy liquid; a quenching wheel positioned below the melted alloy liquid flown from the liquid flow stabilization outfit's base board, which carries the melted alloy liquid and spins it into strips, to make the strips become alloy sheets after collision; a transferring outfit positioned below the wheel for further cooling and transferring of the alloy sheets, wherein the quenching wheel is equipped with a means for differentiating cooling rate for various alloy sheets. The magnetic material made of these alloy sheets is good in orientation, easy for post-sinter processing, and suitable for mass production.Type: GrantFiled: May 28, 2008Date of Patent: January 8, 2013Assignee: Beijing Zhong Ke San Huan High-Tech Co., Ltd.Inventors: Boping Hu, Yizhong Wang, Xiaolei Rao, Jingdong Jia
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Patent number: 8327917Abstract: An apparatus and a method for producing an amorphous alloy foil strip, which are capable of producing an amorphous alloy foil strip having a large sheet thickness in an industrial scale, are provided. A production apparatus 101 for an amorphous alloy foil strip S includes: a pair of cooling rolls 113a and 113b; a driving unit 111 configured to rotate the cooling rolls; and a crucible 114 configured to supply a molten alloy sequentially to an outer circumferential surface of the cooling roll 113a and an outer circumferential surface of the cooling roll 113b. The crucible 114 is movable along a moving unit 116. A molten alloy is supplied alternately to the cooling roll 113a and the cooling roll 113b while rotating and water-cooling the cooling rolls 113a and 113b.Type: GrantFiled: February 20, 2009Date of Patent: December 11, 2012Assignee: Nippon Steel CorporationInventor: Takashi Sato
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Patent number: 8251128Abstract: Provided is a method of continuously producing a phosphorus-containing copper alloy wire by adding phosphorus or an element which is less soluble than phosphorus to molten copper. The method includes: adding an element less soluble into a heating furnace for maintaining molten copper sent from a melting furnace at a predetermined high temperature; transferring the molten copper sent from the heating furnace to a tundish; adding phosphorus to the molten copper after decreasing the temperature of the molten copper in the tundish; supplying the molten copper from the tundish to a belt wheel-type continuous casting apparatus; and rolling a cast copper material output from the belt wheel-type continuous casting apparatus, thereby continuously producing a phosphorus-containing copper alloy wire.Type: GrantFiled: October 16, 2008Date of Patent: August 28, 2012Assignee: Mitsubishi Materials CorporationInventors: Yoshiaki Hattori, Hitoshi Nakamoto
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Patent number: 8235091Abstract: The present invention provides an amorphous ribbon take-up roll switching and method which use a take-up device provided with a plurality of take-up rolls magnetized on their surfaces so as to take up an amorphous alloy ribbon during which it is possible to simply and inexpensively switch take-up rolls stably without ribbon breaking, uneven take-up, or other trouble regardless of the amount of take-up, that is, a method of taking up amorphous ribbon having a magnetic property cast using a cooling roll by using two or more take-up rolls, which amorphous ribbon switching method characterized by, when switching the take-up rolls, bringing the amorphous ribbon into contact with the next take-up roll and cutting the amorphous ribbon being taken up in the state with the next take-up roll brought into proximity with the cooling roll or separating the next take-up roll and the cooling roll and cutting the amorphous ribbon between the take-up roll and the next take-up roll.Type: GrantFiled: May 10, 2007Date of Patent: August 7, 2012Assignee: Nippon Steel CorporationInventors: Shigekatsu Ozaki, Takeshi Imai
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Patent number: 8151865Abstract: One embodiment is a method. The method includes providing a casting apparatus including a first chamber and a second chamber, wherein the first chamber is isolated from the second chamber. The method includes charging a superalloy composition into a crucible present in the first chamber and melting the superalloy composition in the crucible to form a molten superalloy composition. The method includes discharging the molten superalloy composition into a casting mold present in the second chamber; applying a positive pressure to the first chamber to create a first chamber pressure; and applying a vacuum to the second chamber to create a second chamber pressure, wherein the first chamber pressure is greater than the second chamber pressure. The method further includes casting at least one filament from the molten superalloy composition in the casting mold. An apparatus for casting a plurality of filaments is also provided.Type: GrantFiled: March 30, 2011Date of Patent: April 10, 2012Assignee: General Electric CompanyInventors: Laurent Cretegny, Bernard Patrick Bewlay
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Publication number: 20120067541Abstract: A copper mold or copper mold plate and also a process for reconditioning such worn molds or mold plates, which are used for the continuous casting of metals or metal alloys is provided. An electrolytically applied copper coating is provided on the inner wall of the mold or on that side of the mold plate which faces toward the casting strand.Type: ApplicationFiled: April 20, 2010Publication date: March 22, 2012Inventors: Egon Evertz, Ralf Evertz, Stefan Evertz
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Patent number: 8096345Abstract: A method and apparatus are provided for producing an amorphous ribbon by ejecting and rapidly solidifying molten alloy on a circumferential surface of a rapidly rotating cooling roll, wherein the cooling roll is polished online during amorphous ribbon production. When the circumferential surface of the cooling roll after peeling off the ribbon is polished using a polishing member, the circumferential surface of the cooling roll is polished continuously or intermittently across its lateral direction while differentiating the polishing mode in accordance with the surface properties.Type: GrantFiled: April 16, 2008Date of Patent: January 17, 2012Assignee: Nippon Steel CorporationInventors: Shigekatsu Ozaki, Takeshi Imai
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Publication number: 20110259543Abstract: A continuous casting mold for the continuous casting of a metal strand, particularly a steel strand, comprising mutually opposing wide side walls and mutually opposing narrow side walls which are disposed in a clamped manner between the wide side walls and can be displaced along the wide side walls transversely to the casting direction and taper in a wedge-shaped manner in the casting direction, wherein the wide side walls comprise a funnel-shaped pouring region extending in the casting direction to the mould end, and wherein the narrow side walls are disposed in an exchangeable manner according to the thickness to be set for the metal strand to be cast, and wherein the positions of the narrow sides can be set by means of a narrow side adjustment system (7) having an upper and an lower adjustment device (8, 9) in relation to the center line (11) of the metal strand to be cast, characterized in that the narrow side adjustment system (7) comprises at least one control element (12, 13), which acts on the adjustmType: ApplicationFiled: September 21, 2009Publication date: October 27, 2011Applicant: SMS SIEMAG AKTIENGESELLSCHAFTInventors: Jorn Hoffmeister, Michael Dreis, Ulrich Snadny
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Patent number: 8042600Abstract: A production apparatus is provided which can produce an alloy which can produce a rare-earth magnet having high coercive force. The apparatus for producing an alloy is a device that includes at least a casting device for casting a molten alloy by a strip casting method, a crushing device for crushing cast alloy after casting, a heat-retaining device for maintaining temperature of cast alloy flakes N supplied from the crushing device, and a storage container for storing the cast alloy flakes N after maintaining the temperature. The heat-retaining device includes a heat-retaining container for storing the cast alloy flakes N supplied from the crushing device, a temperature retaining heater for maintaining the temperature of the cast alloy flakes N in the heat-retaining container, an inclination device for sending the cast alloy flakes N in the heat-retaining container to the storage container by inclining the heat-retaining container.Type: GrantFiled: September 18, 2008Date of Patent: October 25, 2011Assignee: Showa Denko K.K.Inventor: Kenichiro Nakajima
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Patent number: 7958929Abstract: An apparatus for producing an alloy, including: a casting device which casts a molten alloy using the strip cast method; a crushing device which crushes the cast alloy after casting; and a heating device which keeps the thin laminas of the cast alloy after crushing at a predetermined temperature or which heats the thin laminas of the cast alloy after crushing, wherein the heating device is equipped with a container and a heater.Type: GrantFiled: April 6, 2007Date of Patent: June 14, 2011Assignee: Showa Denko K.K.Inventors: Hiroshi Hasegawa, Kazuya Ueno, Shinichi Osawa, Shiro Sasaki
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Publication number: 20110000636Abstract: The invention is directed to a device for casting strands of metal, in particular steel, with a material supply vessel, the liquid metal being delivered to the carrying side of a circulating conveyor belt by means of the pouring nozzle of the material supply vessel. The conveyor belt comprises a thin, heat-resistant belt which circulates between a first deflection roller and a second deflection roller and which is shaped after the first deflection roller and in the region of the outlet nozzle to form a trough for receiving the liquid metal and resumes the shape of a flat belt in proximity to the second deflection roller. In order to reduce stresses on the belt, it is proposed that at least one of the deflection rollers is cambered in a convex manner.Type: ApplicationFiled: January 8, 2008Publication date: January 6, 2011Applicant: SMS Siemag AktiengesellschaftInventors: Hans Streubel, Gereon Fehlemann
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Publication number: 20100307710Abstract: The present invention relates to a strand guide (1), in particular for a steel slab continuous casting installation, comprising a number of segments (2) that support a strand on two opposite sides (4, 5) thereof with support elements (6, 7), wherein the support elements (6, 7) are arranged in at least one lower frame (8) and at least one upper frame (9) for guiding the strand (3) in a conveying direction, and wherein the frames (8, 9) are arranged on at least one central bar (10). In order to facilitate exchange of segments or their parts, according to the intention there is available means (11) with which the at least one upper and/or at least one lower frame (8, 9) can be adjusted relative to the at least one central bar (10) in a conveying direction (F) or in opposite direction.Type: ApplicationFiled: January 26, 2009Publication date: December 9, 2010Inventors: Axel Weyer, Axel Stavenow
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Patent number: 7806165Abstract: In a method for making hot strips, a workable lightweight construction steel is used which in particular can easily be deep-drawn cold and includes the main elements Si, Al and Mn, with high tensile strength and good TRIP and/or TWIP characteristics. The mass % are as follows for C 0.04 to <1.0, Al 0.05 to <4.0, SI 0.05 to ?6.0; Mn 9.0 to ?30.0, the remainder being iron with the common incidental steel elements. The melt is cast in a horizontal strip casting unit, close to the final dimensions at calm flow and without bending to form a pre-strip in the range between 6 and 15 mm, and subsequently is fed for further processing.Type: GrantFiled: December 22, 2004Date of Patent: October 5, 2010Assignees: Salzgitter Flachstahl GmbH, Max-Planck-Institut Für Eisenforschung GmbHInventors: Joachim Kroos, Karl-Heinz Spitzer, Georg Frommeyer, Volker Flaxa, Udo Brüx, Klaus Brockmeier
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Publication number: 20090260848Abstract: Insulated electrically conductive continuous fibers or microwires of sizes on the order of 1 mil (25 microns) diameter, so as to be suitable for processing into yarns or multi-microwire bundles, for example, for incorporation into conformable fabric products or for use as wearable electronic circuitry are made by coprocessing a core of a lower-melting-point metal within a sheath of a higher-melting-point polymer.Type: ApplicationFiled: April 6, 2009Publication date: October 22, 2009Inventors: Willorage Rathna Perera, Gerald J. Mauretti
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Patent number: 7588071Abstract: Methods and apparatuses for the continuous casting of solid foam structures with varying bubble density from bulk solidifying amorphous alloys are provided. Continuously cast solid foam structures having bubble densities in the range of from 50 percent up to 95% by volume are also provided.Type: GrantFiled: April 14, 2004Date of Patent: September 15, 2009Assignee: Liquidmetal Technologies, Inc.Inventor: James Kang
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Patent number: 7575040Abstract: A process and apparatus for continuous casting of amorphous alloy sheets having large sheet thickness using bulk solidifying amorphous alloys are provided. Thick continuous amorphous alloy sheets made of bulk solidifying amorphous alloys are also provided.Type: GrantFiled: April 14, 2004Date of Patent: August 18, 2009Assignee: Liquidmetal Technologies, Inc.Inventor: William L. Johnson
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Patent number: 7571757Abstract: Disclosed is a rare earth magnet in the R—T—B (rare earth element-transition metal-boron) system that is made from an improved composition and properties of main phase alloy in the R—T—B system containing Pr and a boundary alloy. Disclosed also is a manufacturing method of the rare earth magnet alloy flake by a strip casting method with improved rotating rollers such that the alloy flake has a specified fine surface roughness and has a small and regulated amount of fine R-rich phase regions. Consequently, the alloy flake for the rare earth magnet does not containing ?-Fe and has a homogeneous morphology so that the rare earth magnet formed by sintering or bonding the alloy flakes exhibits excellent magnetic properties.Type: GrantFiled: July 12, 2007Date of Patent: August 11, 2009Assignee: Showa Denko K.K.Inventor: Shiro Sasaki
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Patent number: 7082986Abstract: A system and method for controlling and manipulating solidification of a molten material includes a substrate on which the molten material is deposited and a writing system that generates a gradient pattern on at least a portion of the substrate on which the molten material is deposited.Type: GrantFiled: February 8, 2002Date of Patent: August 1, 2006Assignee: Cornell Research Foundation, Inc.Inventor: Paul H. Steen
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Patent number: 7073559Abstract: A method of producing metal fibers including melting a mixture of at least a fiber metal and a matrix metal, cooling the mixture to form a bulk matrix comprising at least a fiber phase and a matrix phase and removing at least a substantial portion of the matrix phase from the fiber phase. Additionally, the method may include deforming the bulk matrix. In certain embodiments, the fiber metal may be at least one of niobium, a niobium alloy, tantalum and a tantalum alloy and the matrix metal may be at least one of copper and a copper alloy. The substantial portion of the matrix phase may be removed, in certain embodiments, by dissolving of the matrix phase in a suitable mineral acid, such as, but not limited to, nitric acid, sulfuric acid, hydrochloric acid and phosphoric acid.Type: GrantFiled: July 2, 2003Date of Patent: July 11, 2006Assignee: ATI Properties, Inc.Inventors: Philip M. O'Larey, John J. Hebda, Ronald A. Graham
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Patent number: 7073564Abstract: A method and apparatus for making a molten film of metal, in particular a steel film, more uniform by strip casting, in which the molten material which is applied to a revolving belt is to have a thickness and properties which are as uniform as possible across the width of the film. To make the film more uniform over its width, forces are introduced into the metal film with a component which is directed oppositely to the direction in which the film is conveyed, which forces make the profile of the molten film of metal more uniform.Type: GrantFiled: February 20, 2003Date of Patent: July 11, 2006Assignees: SMS Demag AG, Salzgitter AGInventors: Joachim Kroos, Karl-Heinz Spitzer, Ulrich Urlau
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Patent number: 6916385Abstract: Disclosed herein is a method of manufacturing a magnetic material which can provide a bonded magnet having excellent magnetic properties and having excellent reliability. A melt spinning apparatus 1 is provided with a tube 2 having a nozzle 3 at the bottom thereof, a coil 4 for heating the tube and a cooling roll 5 having a circumferential surface 53 in which gas expelling grooves 54 are formed. A melt spun ribbon 8 is formed by injecting the molten alloy 6 from the nozzle 6 so as to be collided with the circumferential surface 53 of the cooling roll 5, so that the molten alloy 6 is cooled and then solidified. In this process, gas is likely to enter between a puddle 7 of the molten alloy 6 and the circumferential surface 53, but such gas is expelled by means of the gas expelling grooves 54.Type: GrantFiled: April 12, 2001Date of Patent: July 12, 2005Assignee: Seiko Epson CorporationInventors: Akira Arai, Hiroshi Kato
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Patent number: 6892792Abstract: Disclosed herein is a cooling roll which can provide bonded a magnet having excellent magnetic properties and having excellent reliability. A melt spinning apparatus 1 is provided with a tube 2 having a nozzle 3 at the bottom thereof, a coil 4 for heating the tube and a cooling roll 5 having a circumferential surface 53 in which gas expelling grooves 54 are formed. A melt spun ribbon 8 is formed by injecting the molten alloy 6 from the nozzle 6 so as to be collided with the circumferential surface 53 of the cooling roll 5, so that the molten alloy 6 is cooled and then solidified. In this process, gas is likely to enter between a puddle 7 of the molten alloy 6 and the circumferential surface 53, but such gas is expelled by means of the gas expelling grooves 54.Type: GrantFiled: April 12, 2001Date of Patent: May 17, 2005Assignee: Seiko Epson CorporationInventors: Akira Arai, Hiroshi Kato
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Patent number: 6830633Abstract: A magnetic material manufacturing method, a ribbon-shaped magnetic material manufactured by the method, a powdered magnetic material formed from the ribbon-shaped magnetic material and a bonded magnet manufactured using the powdered magnet material are disclosed. The method and the magnetic materials can provide magnets having excellent magnetic properties and reliability. A melt spinning apparatus 1 is provided with a tube 2 having a nozzle 3 at the bottom thereof, a coil 4 for heating the tube and a cooling roll 5 having a circumferential surface 53 on which dimple correcting means is provided. A melt spun ribbon 8 is formed by injecting the molten alloy 6 from the nozzle 3 so as to be collided with the circumferential surface 53 of the cooling roll 5 in an inert gas atmosphere (ambient gas) such as helium gas, so that the molten alloy 6 is cooled and then solidified.Type: GrantFiled: May 30, 2001Date of Patent: December 14, 2004Assignee: Seiko Epson CorporationInventors: Akira Arai, Hiroshi Kato
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Patent number: 6796363Abstract: Disclosed herein is a cooling roll which can provide bonded a magnet having excellent magnetic properties and having excellent reliability. A melt spinning apparatus is provided with a tube 2 having a nozzle 3 at the bottom thereof, a coil 4 for heating the tube and cooling roll 5 having a circumferential surface 53 in which dimple correcting means is provided. A melt spun ribbon 8 is formed by injecting the molten alloy 6 from the nozzle 3 so as to be collided with the circumferential surface 53 of the cooling roll 5 in an inert gas atmosphere (ambient gas) such as helium gas, so that the molten alloy 6 is cooled and then solidified. In this process, dimples to be produced on a roll contact surface of the melt spun ribbon are divided by the dimple correcting means, thereby preventing formation of huge dimples.Type: GrantFiled: May 30, 2001Date of Patent: September 28, 2004Assignee: Seiko Epson CorporationInventors: Akira Arai, Hiroshi Kato
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Publication number: 20040112566Abstract: A copper- nickel-silicon quench substrate rapidly solidifies molten alloy into microcrystalline or amorphous strip. The substrate is composed of a thermally conducting alloy. It has a two-phase microstructure with copper rich regions surrounded by a network of nickel silicide phases. The microstructure is substantially homogeneous. Casting of strip is accomplished with minimal surface degradation as a finction of casting time. The quantity of material cast during each run is improved without the toxicity encountered with copper-beryllium substrates.Type: ApplicationFiled: May 17, 2002Publication date: June 17, 2004Inventors: Shinya Myojin, Richard L. Bye, Nicholas J. Decristofaro, Jeng S. Lin, David W. Millure, Joseph G. Cox, Dale R. Walls, Gary B.A. Schuster
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Patent number: 6668907Abstract: The invention relates to novel casting wheels for the rapid solidification technique which are produced by centrifugal casting. The wheels are made of an alloy with a non-equiaxial granular structure, wherein the grains are elongated and their longitudinal axis lies substantially perpendicular to the casting-wheel surface.Type: GrantFiled: January 17, 2002Date of Patent: December 30, 2003Assignee: Vacuumschmelze GmbHInventors: Dieter Nuetzel, Ewald Grote, Giselher Herzer
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Patent number: 6655446Abstract: An apparatus and method for casting metal strip includes a moving chill body that has a quench surface. A nozzle mechanism deposits a stream of molten metal on a quenching region of the quench surface to form the strip. The nozzle mechanism has an exit portion with a nozzle orifice. A depletion mechanism includes a plurality of independently controllable gas nozzles to supply a reducing gas to multiple zones of a depletion region located adjacent to and upstream from the quenching region. The gas flow profile can be controlled in each zone independently of controlling the gas flow in other zones. The reducing gas reacts exothermically to lower the density to provide a low density reducing atmosphere within the depletion and substantially prevent formation of gas pockets in the strip.Type: GrantFiled: August 12, 2002Date of Patent: December 2, 2003Assignee: Metglas, Inc.Inventors: Howard H. Liebermann, Stephen D. Albert, Phillip L. Roberts, David W. Palm, Shinya Myojin
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Publication number: 20030207144Abstract: A soft magnetic alloy fiber has a width of 10 &mgr;m or more to less than 500 &mgr;m, a thickness of 2 &mgr;m or more to less than 20 &mgr;m, and a Curie temperature of −50° C. or higher.Type: ApplicationFiled: May 29, 2003Publication date: November 6, 2003Applicant: Kabushiki Kaisha ToshibaInventors: Takao Sawa, Katsutoshi Nakagawa, Hisashi Takahashi, Teruo Murakami, Masao Obama
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Publication number: 20030205353Abstract: A soft magnetic alloy fiber has a width of 10 &mgr;m or more to less than 500 &mgr;m, a thickness of 2 &mgr;m or more to less than 20 &mgr;m, and a Curie temperature of −50° C. or higher.Type: ApplicationFiled: May 29, 2003Publication date: November 6, 2003Applicant: Kabushiki Kaisha ToshibaInventors: Takao Sawa, Katsutoshi Nakagawa, Hisashi Takahashi, Teruo Murakami, Masao Obama
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Patent number: 6622777Abstract: The apparatus and a method are used to produce metal fiber, which can increase production efficiency of metal fiber using a metal plate and simplify manufacturing equipments and includes a controlling device. The method for producing metal fiber includes steps of: making a frame in a vacuum condition by removing the air; vertically inserting an end of a metal plate between two induction coils arranged horizontally at an interval in the inside of the frame and heating and melting the end of the metal plate with heat generated by the induction coils; gradually moving the metal plate downwardly and bringing the end of the metal plate into contact with blades of a rotary disk, the rotary disk being horizontally mounted at a lower portion of the induction coils in the inside of the frame and rotating in a high speed; and solidifying metal fiber separated by the blades of the rotary disk.Type: GrantFiled: August 22, 2002Date of Patent: September 23, 2003Inventor: Yang-Za Park
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Publication number: 20030159795Abstract: Disclosed are a method and an apparatus for producing a uranium foil with fine crystalline granules by forming the foil by the gravitational dropping of molten uranium or uranium alloy and rapidly cooling the foil by the contact with cooling rolls, and a foil produced thereby. In accordance with the present invention, a high-purity and high-quality uranium foil with an isotropic structure and fine crystalline granules is easily produced via a simple process without requiring hot rolling and heat treatment processes. The surface of the foil is prevented from oxidizing and residual stress is not imparted to the foil. The productivity and the economic efficiency of the foil are improved.Type: ApplicationFiled: March 24, 2003Publication date: August 28, 2003Applicant: Korea Atomic Energy Research InstituteInventors: Chang-Kyu Kim, Ki-Hwan Kim, Seok-Jin Oh, Se-Jung Jang, Eung-Soo Kim
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Publication number: 20030155097Abstract: The invention relates to a method for homogenizing a molten metal film, more particularly a steel film, by means of thin strip casting. According to the invention, the melt applied to a rotating strip is of a similar thickness to and possesses the same qualities wherever possible as the width of the strip. In order to homogenize the width of the strip, forces possessing a component perpendicular to the direction of conveyance of the strip are introduced, whereby homogenization of the profile of the molten metal film occurs.Type: ApplicationFiled: February 20, 2003Publication date: August 21, 2003Applicant: SMS Demag AG, Salzgitter AGInventors: Joachim Kroos, Karl-Heinz Spitzer, Ulrich Urlau
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Publication number: 20030150590Abstract: A system and method for controlling and manipulating solidification of a molten material includes a substrate on which the molten material is deposited and a writing system that generates a gradient pattern on at least a portion of the substrate on which the molten material is deposited.Type: ApplicationFiled: February 8, 2002Publication date: August 14, 2003Applicant: Cornell Research Foundation, Inc.Inventor: Paul H. Steen
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Patent number: RE39656Abstract: The apparatus and a method are used to produce metal fiber, which can increase production efficiency of metal fiber using a metal plate and simplify manufacturing equipments and includes a controlling device. The method for producing metal fiber includes steps of: making a frame in a vacuum condition by removing the air; vertically inserting an end of a metal plate between the two induction coils arranged horizontally at an interval in the inside of the frame and heating and melting the end of the metal plate with heat generated by the induction coils; gradually moving the metal plate downwardly and bringing the end of the metal plate into contact with blades of a rotary disk, the rotary disk being horizontally mounted at a lower portion of the induction coils in the inside of the frame and rotating in a high speed; and solidifying metal fiber separated by the blades of the rotary disk.Type: GrantFiled: May 21, 2004Date of Patent: May 29, 2007Inventor: Yang-Za Park
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Patent number: RE44425Abstract: A process and apparatus for continuous casting of amorphous alloy sheets having large sheet thickness using bulk solidifying amorphous alloys are provided. Thick continuous amorphous alloy sheets made of bulk solidifying amorphous alloys are also provided.Type: GrantFiled: April 14, 2004Date of Patent: August 13, 2013Assignee: Crucible Intellectual Property, LLCInventor: William L. Johnson
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Patent number: RE44426Abstract: Methods and apparatuses for the continuous casting of solid foam structures with varying bubble density from bulk solidifying amorphous alloys are provided. Continuously cast solid foam structures having bubble densities in the range of from 50 percent up to 95% by volume are also provided.Type: GrantFiled: April 14, 2004Date of Patent: August 13, 2013Assignee: Crucible Intellectual Property, LLCInventor: James Kang
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Patent number: RE45414Abstract: A process and apparatus for continuous casting of amorphous alloy sheets having large sheet thickness using bulk solidifying amorphous alloys are provided. Thick continuous amorphous alloy sheets made of bulk solidifying amorphous alloys are also provided.Type: GrantFiled: August 29, 2012Date of Patent: March 17, 2015Assignee: Crucible Intellectual Property, LLCInventor: William L. Johnson