In Continuous Casting Mold Patents (Class 164/416)
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Patent number: 11998975Abstract: A molten metal conveyor having a receptor plate in contact with molten metal during transport of the molten metal. The receptor plate extends from an entrance where molten metal enters onto the receptor plate to an exit where molten metal exits the receptor plate. The molten metal conveyor has at least one vibrational energy source which supplies vibrational energy directly to the receptor plate in contact with molten metal. A corresponding method for forming a metal product includes providing molten metal onto a molten conveyor; cooling the molten metal by control of a cooling medium flowing through a cooling passage in the or attached to the conveyor; and coupling vibrational energy directly into a receptor plate in contact with the molten metal on the conveyor.Type: GrantFiled: January 22, 2022Date of Patent: June 4, 2024Assignee: SOUTHWIRE COMPANY, LLCInventors: Kevin Scott Gill, Michael Caleb Powell, Victor Frederic Rundquist, Venkata Kiran Manchiraju, Roland Earl Guffey
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Patent number: 11306017Abstract: A device for forming a molten solidified body by receiving a molten material discharged from a vitrification device or the like on a lower mold, and a method for forming a molten solidified body and, particularly, to a mold supporting device for forming a uniform molten solidified body such that a height deviation on a mold of a dropping molten material is reduced by providing movement to the mold, and a method for forming an uniform molten solidified body. The mold supporting device and the method for forming a uniform molten solidified body to prevent the formation of a high columnar shape at a specific position by the molten effluent not being uniformly contained in the mold due to the high viscosity thereof, thereby forming a uniform solidified body.Type: GrantFiled: November 20, 2017Date of Patent: April 19, 2022Assignee: Korea Hydro & Nuclear Power Co.; LTDInventors: Young Hwan Hwang, Seok Ju Hwang, Cheon Woo Kim
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Patent number: 11179771Abstract: A semi-continuous casting equipment for thin-walled alloy castings with equal outer diameter, optimized by synergistic action of traveling magnetic fields and ultrasonic wave, includes: a melting and insulation device, a heat insulation panel, a traveling magnetic field generator and a water-cooled crystallizer sequentially positioned on a working platform; an outer mold positioned on the water-cooled crystallizer and sleeved the traveling magnetic field generator; a mold core inside the outer mold defining a casting cavity; a bottom plate below the mold core capable of sliding against and along an inner side of the outer mold; two position control units supported by the working platform; an ultrasonic limit baffle moveably engaged with the position control units; an ultrasonic wave generator affixed on the ultrasonic limit baffle and extended to the casting cavity; a motion system controlling up and down movement of the bottom plate and the position control units through a gear transmission mechanism.Type: GrantFiled: September 20, 2020Date of Patent: November 23, 2021Assignee: Harbin Institute of TechnologyInventors: Yanqing Su, Lei Luo, Liangshun Luo, Liang Wang, Ruirun Chen, Jingjie Guo, Jingsong Hou, Qingfeng Yuan, Chunhui Li
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Patent number: 10639707Abstract: 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: September 9, 2016Date of Patent: May 5, 2020Assignee: SOUTHWIRE COMPANY, LLCInventors: Kevin Scott Gill, Michael Caleb Powell, Victor Frederic Rundquist, Venkata Kiran Manchiraju, Roland Earl Guffey
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Patent number: 10232432Abstract: A mold oscillator includes: a ball screw unit that has a ball screw 32having a threaded shaft 29 and a ball nut 30, and a nut-side shaft 31 fixed to the ball nut 30 coaxially with the threaded shaft 29, wherein the ball screw unit is positioned so that the central axis of the ball screw unit extends in the vertical direction; and a power transmitting mechanism that transmits rotation to the ball screw unit. Bearings rotatably support a first shaft. A second shaft that is the other of the threaded shaft and the nut-side shaft is connected to the mold side. An attachment portion to fix the mold oscillator at an installation position is provided so as to be immovable relative to the bearings in the vertical direction and is configured to be able to change the relative position between the bearings and the second shall in the vertical direction in a state where operation of the mold oscillator is stopped.Type: GrantFiled: February 9, 2016Date of Patent: March 19, 2019Assignee: JP STEEL PLANTECH CO.Inventor: Yuki Kadowaki
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Patent number: 10189078Abstract: A mold oscillator includes a ball screw unit that has a ball screw 32 having a threaded shaft 29 and a ball nut 30, and has a nut-side shaft 31 fixed to the ball nut 30 coaxially with the threaded shaft 29, wherein the ball screw unit is positioned so that the central axis of the ball screw unit extends in the vertical direction. A casing surrounds at least part of the ball screw 32. The ball nut 30 of the ball screw 32 and part of the threaded shaft 29 of the ball screw 32, on which, part the ball nut 30 is engaged with the threaded shaft 29, are submerged in a lubricating oil so as to be able to lubricate the ball screw 32 with an oil bath.Type: GrantFiled: February 9, 2016Date of Patent: January 29, 2019Assignee: JP STEEL PLANTECH CO.Inventor: Yuki Kadowaki
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Patent number: 9352368Abstract: A method for producing rolled products includes providing two parallel lines downstream of a continuous casting, for conveying profiled supply sections that converge together at least at a single first rolling station. A plant for implementing the method is also provided.Type: GrantFiled: July 20, 2012Date of Patent: May 31, 2016Assignee: Siemens AktiengesellschaftInventor: Ezio Colombo
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Patent number: 9186721Abstract: A device for supporting and oscillating continuous casting molds in continuous casting plants includes at least one support suitable to support a continuous casting mold, the support including a fixed assembly restrained to a frame of the device and a movable assembly that is slidably restrained to the fixed assembly in a vertical direction and connected to a servomechanism suitable to move it in a reciprocating manner relative to the fixed assembly along the axial direction, the movable assembly including a plurality of channels suitable to allow a flow of a cooling fluid to and from a cooling circuit of the mold, the channels being supplied by supply pipes arranged along the vertical direction.Type: GrantFiled: December 14, 2012Date of Patent: November 17, 2015Assignee: ARVEDI STEEL ENGINEERING S.P.AInventors: Andrea Teodoro Bianchi, Giovanni Arvedi
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Patent number: 8985190Abstract: The invention relates to a method for the vertical semi-continuous direct chill casting of composite billets or plates comprising at least two layers of aluminum alloys, using a separator which is in contact with the solidification front and which provides a seal between the two alloys during casting, said separator being vibrated while it is in contact with the solidification front, so that the separator is not frozen in and entrained by the solid metal. The invention also relates to a device that can be used to carry out said method.Type: GrantFiled: July 10, 2012Date of Patent: March 24, 2015Assignee: Constellium FranceInventors: Philippe Jarry, Serge Guy
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Patent number: 8915291Abstract: Plant for forming grids for electric battery plates, which comprises a grid forming machine with continuous casting provided with a rotary drum, and a sliding block mounted fixed and slideably sealingly coupled with the external surface of the rotary drum and provided with means for distributing molten lead, in order to insert the molten lead within grooves provided on the external peripheral surface of the rotary drum during the rotation of the latter. The plant is also provided with an ultrasound generator placed to intercept a feed duct for the molten lead, connected to the distribution means and provided with at least one tip immersed in the pressurized flow of molten lead that moves through the aforesaid feed duct in order to transmit the waves produced by the ultrasound generator to the molten lead flow.Type: GrantFiled: May 19, 2013Date of Patent: December 23, 2014Assignee: Sovema S.p.A.Inventor: Pietro Farina
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Publication number: 20140338855Abstract: Plant for forming grids for electric battery plates, which comprises a grid forming machine with continuous casting provided with a rotary drum, and a sliding block mounted fixed and slideably sealingly coupled with the external surface of the rotary drum and provided with means for distributing molten lead, in order to insert the molten lead within grooves provided on the external peripheral surface of the rotary drum during the rotation of the latter. The plant is also provided with an ultrasound generator placed to intercept a feed duct for the molten lead, connected to the distribution means and provided with at least one tip immersed in the pressurized flow of molten lead that moves through the aforesaid feed duct in order to transmit the waves produced by the ultrasound generator to the molten lead flow.Type: ApplicationFiled: May 19, 2013Publication date: November 20, 2014Applicant: SOVEMA S.P.AInventor: Pietro FARINA
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Publication number: 20140311699Abstract: A device for supporting and oscillating continuous casting moulds in continuous casting plants comprises at least one support suitable to support a continuous casting mould, said support comprising a fixed assembly restrained to a frame of the device and a movable assembly that is slidably restrained to said fixed assembly in a vertical direction (A) and connected to a servomechanism suitable to move it in a reciprocating manner relative to the fixed assembly along said axial direction (A), said movable assembly comprising a plurality of channels suitable to allow a flow of a cooling fluid to and from a cooling circuit of said mould, said channels being supplied by supply pipes arranged along the vertical direction (A).Type: ApplicationFiled: December 14, 2012Publication date: October 23, 2014Applicant: ARVEDI STEEL ENGINEERING S.P.A.Inventors: Andrea Teodoro Bianchi, Giovanni Arvedi
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Publication number: 20140138041Abstract: The invention relates to a method for the vertical semi-continuous direct chill casting of composite billets or plates comprising at least two layers of aluminium alloys, using a separator which is in contact with the solidification front and which provides a seal between the two alloys during casting, said separator being vibrated while it is in contact with the solidification front, so that the separator is not frozen in and entrained by the solid metal. The invention also relates to a device that can be used to carry out said method.Type: ApplicationFiled: July 10, 2012Publication date: May 22, 2014Applicant: CONSTELLIUM FRANCEInventors: Philippe Jarry, Serge Guy
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Publication number: 20120237395Abstract: The invention relates to a manufacturing method for making an unwrought semi-finished product having at mid thickness a density of micropores of size greater than 90 ?m less than 50% and preferably less than 20% of the density of micropores of size greater than 90 ?m obtained by a method according to prior art. The method according to the invention comprises in particular an ultrasound treatment step for the molten metal bath in a furnace and/or a vessel using an immersed device comprising at least one ultrasound transmitter. The semi-finished products obtained according to the method of the invention are particularly advantageous for manufacturing by rolling sheets designed for the aircraft industry to produce spars, ribs, upper and lower wing skins and for manufacturing by extrusion sections designed for the aircraft industry to produce stiffeners.Type: ApplicationFiled: February 16, 2012Publication date: September 20, 2012Applicants: Constellium France, ALCAN REHNALUInventor: Philippe JARRY
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Publication number: 20120048501Abstract: Disclosed are a method and a casting/rolling plant for producing hot-rolled metallic, particularly steel, strips (7) having great surface quality from slabs or flat thin bars (2, 2a) that are cast in a continuous casting process, descaling being performed based on a rotary descaling process. In order to take into account parameters which are not considered in prior art in addition to rotary descaling, the hydraulically oscillated permanent mold (9) travels along several different oscillation curves (16, 17, 18) while the oscillation marks are deep-cleaned by adjusting the oscillation pattern that is determined to be optimal for each casting material.Type: ApplicationFiled: December 22, 2006Publication date: March 1, 2012Inventors: Christian Bilgen, Tilmann Böcher, Wolfgang Hennig, Jürgen Gaydoul
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Patent number: 8074703Abstract: Oscillating table for blooms or billets production plants, comprising pairs of bars, lying on at least one horizontal plane, which constitute the elastic support elements of the mold, thus permitting an optimal guidance of the oscillation thereof exclusively in the casting direction, said pairs of bars constituting a tie rod-strut system working in bending that confers to the table very high torsional and lateral stiffness. It allows a high precision in guiding mold thus consenting it wide oscillations in the axial casting direction only.Type: GrantFiled: February 23, 2007Date of Patent: December 13, 2011Assignee: Danieli & C. Officine Meccaniche S.p.A.Inventors: Alfredo Poloni, Andrea De Luca, Marco Ansoldi
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Patent number: 8016020Abstract: Oscillating table for thick slab production plants, comprising pairs of bars (8, 8?, 9, 9?), lying on at least one horizontal plane, which constitute the elastic support elements of the ingot mould (3), thus permitting an optimal guiding of the oscillation thereof exclusively in the casting direction (x), said pairs of bars (8, 8?, 9, 9?) constituting a tie rod-strut system working in bending that confers to the table very high torsional and lateral stiffness. It allows a high ingot mould (3) guiding precision thus consenting, for example, wide oscillations exclusively in the axial casting direction.Type: GrantFiled: February 21, 2007Date of Patent: September 13, 2011Assignee: Danieli & C. Officine Meccaniche S.p.A.Inventor: Alfredo Poloni
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Patent number: 7913745Abstract: A method for continuously casting a billet with a small cross section in which a curved type or vertical type continuous casting machine is used while oscillating the mold upward and downward is characterized in that the casting machine is provided with a mechanism for withdrawing speed oscillation. The mechanism has structural play in the directions of driving and reverse driving in such a manner that the amount of a play-incurred displacement from the neutral position of the structural play in the direction of billet driving or reverse driving is ±2 to ±30 mm in the direction of driving on the pinch roll circumferential length equivalent basis. The mechanism produces a returning force toward the neutral position and operational parameters such as the billet length, the specific amount of secondary cooling water, the casting speed as well as the oscillation amplitude and frequency are optimized.Type: GrantFiled: October 15, 2009Date of Patent: March 29, 2011Assignee: Sumitomo Metal Industries, Ltd.Inventors: Yuichi Tsukaguchi, Masayuki Kawamoto, Masahito Hanao, Atsushi Hirata, Hiroshi Hayashi, Manabu Adachi
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Patent number: 7909086Abstract: Continuously casting a billet with a small cross section by pouring molten steel into a mold using a cylindrical immersion nozzle is characterized by measuring the molten steel level in the mold using an eddy current sensor. The level is controlled based on the thus-measured value, motion of steel in the mold is adjusted by electromagnetic stirring, a cooling zone during the final period of solidification is disposed within a certain region ranging from the meniscus to the specific site, and casting speed is adjusted so that the region in which the solid phase ratio at the billet center is 0.3-0.99 may be included in the cooling zone during the final period of solidification. The secondary cooling water amount and the billet surface temperature at the entrance to the cooling zone the density of cooling water in the cooling zone during the final period of solidification are optimized.Type: GrantFiled: October 15, 2009Date of Patent: March 22, 2011Assignee: Sumitomo Metal Industries, Ltd.Inventors: Yuichi Tsukaguchi, Masayuki Kawamoto, Masahito Hanao, Atsushi Hirata, Hiroshi Hayashi
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Publication number: 20110048668Abstract: A method for producing strip cast from a molten metal by means of a twin roll caster and a twin roll caster. The machine has casting rolls which delimit a casting gap between them on its longitudinal sides and narrow sides sealed in each case by a side plate which is moved during the casting operation about an axis of oscillation in an oscillating manner. The inventive method and the twin roll caster enable the risk of operational disruptions from molten mass solidifying in the region of the side plate to be further minimized. This is achieved by changing the position of the axis of oscillation during the casting operation.Type: ApplicationFiled: February 20, 2009Publication date: March 3, 2011Applicant: THYSSENKRUPP NIROSTA GMBHInventor: Andre d'Hone
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Publication number: 20110024074Abstract: A twin roll caster and a method for operating comprising two casting rolls that delimit a casting gap on its longitudinal sides; two side plates that delimit the casting gap on its narrow sides; and at least one axial actuator associated with one of the side plates and impacting the respective side plate on its rear turned away from the front sides of the casting rolls with a force axially aligned toward the casting gap pressing the side plate against the front sides of the casting rolls. An axial actuator acts on the rear side of the side plate by means of a joint provided to adjust an angular offset between the normal level relative to the effective direction of the force applied by the axial actuator to the side plate and the normal level relative to the axes of rotation of the casting rolls.Type: ApplicationFiled: February 20, 2009Publication date: February 3, 2011Applicant: THYSSENKRUPP NIROSTA GMBHInventor: Andre d'Hone
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Patent number: 7814960Abstract: In a mold oscillating apparatus according to the present invention, a connecting plate for interconnecting a moving bearing housing rotated by eccentric rotation of an eccentric shaft and a mold table oscillated by rotation of the moving bearing housing is supported by the mold table from one end of an upper end part thereof to the other end, and supported by the moving bearing housing from one end of a lower end part thereof to the other end. By such a configuration, torsional deformation of the connecting plate is prevented and a stress generated in the connecting plate is eased.Type: GrantFiled: January 10, 2008Date of Patent: October 19, 2010Assignee: Kobe Steel, Ltd.Inventors: Hiroshi Kawaguchi, Hirofumi Sasaki
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Patent number: 7694716Abstract: A continuous casting mould comprises a mould tube (12), a mould jacket (24) surrounding the mould tube (12), a cooling system (26) within the mould jacket (24) for cooling the mould tube (12), an oscillating lever (40) supporting the mould tube (12). The oscillating lever (40) is capable of oscillating about a pivoting axis (45) substantially perpendicular to a casting plane containing the casting axis (20) for transmitting mechanical oscillations to the mould tube (12). An oscillating mould cover (30) associated with the top end of the mould jacket (24). The mould tube (12) is supported with its upper end by the oscillating mould cover (30), and is itself pivotably supported by the oscillating lever (40) outside of the mould jacket (24). A sealing element, e.g. an annular lip seal (90), provides sealing between the oscillating mould cover (30) and the top end of the mould jacket (24).Type: GrantFiled: June 15, 2005Date of Patent: April 13, 2010Assignee: SMS Siemag AktiengellschaftInventors: Emile Lonardi, Michel Houbart, Charles Assa, Marc Wies
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Publication number: 20090266503Abstract: The object of the invention is to improve the quality of cast hot strips. The object is achieved in terms of the method by a method for producing hot metallic strips, in particular of lightweight structural steel, wherein a melt is charged in the presence of inert gas by means of a runner onto a circulating casting belt of a horizontal strip casting facility, solidifies to form a pre-strip with a thickness of between 6 and 20 mm and, after thorough solidification, the pre-strip undergoes a hot rolling process. The invention is characterized in that the heat transfer and the contact (surface area, time) between the strand solidified to form a pre-strip and the casting belt is reduced, and by a device for carrying out the method.Type: ApplicationFiled: November 22, 2006Publication date: October 29, 2009Applicant: Salzgitter Flachstahl GmbHInventors: Karl-Heinz Spitzer, Hellfried Eichholz, Rune Schmidt-Jurgensen, Markus Schaperkotter
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Patent number: 7594534Abstract: The invention relates to a method for operating a strip casting machine for producing a metal strip during which molten metal is continuously poured between two casting rolls (3, 4) that form a casting gap. Sealing plates (2b) are provided for laterally delimiting the casting gap, whereby the sealing plates (2b) are displaced during the casting operation in an oscillating manner transversal to the direction of the axis of the casting rolls (3,) counter to the front surface (3a, 4a) of said casting rolls (3, 4). Said sealing plates (2b) are displaced in an oscillating manner in and counter to the direction of the periphery (U3 and/or U4) of the casting rolls (3, 4), whereby displacement takes place in an alternating manner along one or the other casting roll edges (3k and/or 4k). Partial solidifcations can, to a large extent, be prevented from forming and can be removed if need be. The produced metal strip has clean edges.Type: GrantFiled: October 7, 2004Date of Patent: September 29, 2009Assignees: SMS Demag AG, Main Management Inspiration AGInventors: Heinrich Marti, Jaques Barbè
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Patent number: 7500510Abstract: An oscillating device for continuous casting molds (1) for casting molten metal particularly, molten steel material includes a plurality of springs (5) or spring assemblies (5a) extending between a stationary mold frame (2) and connection or fixing points (4) for supporting a continuous casting mold (1) and are set in control oscillations such as, e.g., resonance oscillations by drive pairs, wherein by using of springs (5), spring assemblies (5a) or spring bundles (5b) formed of fiber composites (6), damaging corrosion by chemicals during continuous casting is prevented.Type: GrantFiled: March 15, 2005Date of Patent: March 10, 2009Assignee: SMS Demag AGInventors: Horst von Wyl, Joern Hoffmeister, Alfons Krausa, Ulrich Snadny, Ingo Schuster
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Patent number: 7497244Abstract: The invention relates to a device for supporting and oscillating a continuous casting mold (1) for continuously casting molten metals, particularly molten metal materials, comprising: guide elements (4) symmetrically arranged on both sides of the central longitudinal axis (2) of the casting; fixed supporting parts (5), and; a continuous casting mold (1) supported on paired oscillating devices (6). The inventive device facilitates the accessibility to individual modules for maintaining and/or eliminating damages. To this end, a module (7) that, itself, can be removed, is formed from paired bearing blocks (9) with guide elements (4) and with a supporting casing (7a) connected to said bearing blocks. The module is placed upon a stationary submodule (7b) and detachably connected thereto.Type: GrantFiled: June 7, 2005Date of Patent: March 3, 2009Assignee: SMS Demag AGInventors: Erich Hovestädt, Martin Becker, Axel Weyer, Axel Stavenow, Jörn Hoffmeister
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Patent number: 7490655Abstract: A device for the support and oscillation of a continuous casting mould (1) for casting liquid metal, particularly liquid steel, comprising guide elements (4) which are mounted on fixed carrier components (5) and which is actually by means of oscillation devices (6). In order to shorten time required for mounting and dismounting and therefor to lower the down times and costs of said continuous casting device, a first module (7) is made of guide elements (4) and carrier components (5) and a second module (8) consists of the oscillation device (6). The second module (8) can be dismantled via an outlet (9) which extends laterally, perpendicular to the plane of symmetry (2) below the guide elements (4) or in between guide elements (4). Each of the two modules (7,8) can be dismounted or re-mounted in a manner which is temporally and locally independent from the other respective module (7,8).Type: GrantFiled: June 16, 2005Date of Patent: February 17, 2009Assignee: SMS Demag AGInventors: Thomas Lamberti, Axel Stavenow, Jörn Hoffmeister, Jürgen Müller, Axel Weyer
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Patent number: 7484549Abstract: A seal for a continuous casting furnace having a melting chamber with a mold therein for producing a metal cast includes a passage between the melting chamber and external atmosphere. As the cast moves through the passage, the cast outer surface and the passage inner surface define therebetween a reservoir for containing liquid glass or other molten material to prevent the external atmosphere from entering the melting chamber. Particulate material fed into the reservoir is melted by heat from the cast to form the molten material. The molten material coats the cast as it moves through the passage and solidifies to form a coating to protect the hot cast from reacting with the external atmosphere. Preferably, the mold has an inner surface with a cross-sectional shape to define a cross-sectional shape of the cast outer surface whereby these cross-sectional shapes are substantially the same as a cross-sectional shape of the passage inner surface.Type: GrantFiled: May 2, 2007Date of Patent: February 3, 2009Assignee: RMI Titanium CompanyInventors: Michael P. Jacques, Frank P. Spadafora, Kuang-O Yu, Brian W. Martin
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Publication number: 20090014148Abstract: Oscillating table for thick slab production plants, comprising pairs of bars (8, 8?, 9, 9), lying on at least one horizontal plane, which constitute the elastic support elements of the ingot mould (3), thus permitting an optimal guiding of the oscillation thereof exclusively in the casting direction (x), said pairs of bars (8, 8?, 9, 9?) constituting a tie rod-strut system working in bending that confers to the table very high torsional and lateral stiffness. It allows a high ingot mould (3) guiding precision thus consenting, for example, wide oscillations exclusively in the axial casting direction.Type: ApplicationFiled: February 21, 2007Publication date: January 15, 2009Inventor: Alfredo Poloni
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Publication number: 20080121364Abstract: The invention relates to a device for supporting and oscillating a continuous casting mold (1) for continuously casting molten metals, particularly molten metal materials, comprising: guide elements (4) symmetrically arranged on both sides of the central longitudinal axis (2) of the casting; fixed supporting parts (5), and; a continuous casting mold (1) supported on paired oscillating devices (6). The inventive device facilitates the accessibility to individual modules for maintaining and/or eliminating damages. To this end, a module (7) that, itself, can be removed, is formed from paired bearing blocks (9) with guide elements (4) and with a supporting casing (7a) connected to said bearing blocks. The module is placed upon a stationary submodule (7b) and detachably connected thereto.Type: ApplicationFiled: June 7, 2005Publication date: May 29, 2008Applicant: SMS DEMAG AGInventors: Erich Hovestadt, Martin Becker, Axel Weyer, Axel Stavenow, Jörn Hoffmeister
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Patent number: 7086449Abstract: An apparatus for the continuous casting of metals, especially of steel, is equipped with a base frame (2) carrying a continuous casting mold (1) and an oscillating device (3) disposed on the base frame (2) and with a foot roller frame (4) disposed on the foot end (1a) of the continuous casting mold (1). In order to obtain better protection for the mold region and components disposed downstream thereof, it is proposed that the continuous casting mold (1) together with an oscillation frame (3b) and an oscillating drive (3a) engaging the oscillating frame (3b) be arranged in an upwardly and laterally closed housing (5) and that the foot roller frame (4) fastened on the continuous casting mold (1) extends through a laterally shielding lower housing (6).Type: GrantFiled: December 1, 2001Date of Patent: August 8, 2006Assignee: SMS Demag AktiengesellschaftInventors: Adolf Gustav Zajber, Thomas Fest
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Patent number: 7073563Abstract: A machine for vertical casting of metal, including a frame on which casting molds can be mounted and through which cooling water can be supplied during casting. The frame includes a horizontal cantilever arm protruding from a support and being journalled in the support with one end, for vertical pivoting of the frame, said support being rotatable about a vertical axis for horizontal pivoting of the frame.Type: GrantFiled: March 15, 2005Date of Patent: July 11, 2006Assignee: Heggset Engineering A.S.Inventor: Bjarne A. Heggset
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Patent number: 7036557Abstract: A device for the continuous casting of metals, especially steel material, to elongated products in a multistrand casting apparatus with a plurality of continuous casting molds which are oscillatingly driven in an oscillating frame (2) by means of leaf springs (4) whereby the leaf springs (4) extend transversely to the casting direction (1) and serve for guide and weight compensation. The smallest possible strand spacing “A” is provided for that on a longitudinal foundation frame (5) to housings (6a) in the form of compact flat cassettes (6) are secured one behind the other in the strand travel direction. In the housings upper and lower leaf spring pairs (4a; 4b) run transversely to the cast strands (3) and the oscillating strands (11) engage the leaf spring pairs (4a; 4b), whereby a front oscillating drive (11a) works synchronously with the rear oscillating drive (11b).Type: GrantFiled: September 2, 2003Date of Patent: May 2, 2006Assignee: SMS Demag AktiengesellschaftInventors: Thomas Fest, Herbert Brotzki, Martin Becker, Adolf Gustav Zajber
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Patent number: 6889748Abstract: The invention relates to a device for the continuous casting of metals, especially steel, by means of a continuous casting mold (1) which is mounted in an oscillating frame (3). Said oscillating frame can be driven so that it oscillates in the direction of casting (2), the course of the oscillation movement and/or the frequency being adjustable. The oscillating frame (3) is mounted with spring assemblies (4a, 4b; 5a, 5b) arranged symmetrically on both sides of the strand, for guiding and weight compensation. The device is used on a continuous casting mold (1) with a shaped casting cross-section (1a), which is mounted in the oscillating frame (3). The leaf-spring-mounted oscillating frame (3) can be operated with the continuous casting mold (1) in a resonance oscillation method in order to give the preliminary section a better surface.Type: GrantFiled: May 5, 2001Date of Patent: May 10, 2005Assignee: SMS Demag AGInventors: Lothar Fischer, Adolf Zajber, Thomas Fest, Siegbert Schwenecke
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Patent number: 6715537Abstract: A device for the continuous casting of metal includes a lifting platform which can be driven in an oscillating fashion by a drive device, a continuous casting mold received on the lifting platform, and a stationarily arranged support frame provided with guiding or bearing elements for the lifting platform. The guiding or bearing element is an elastic spring system including two spring legs arranged angularly relative to one another and extending perpendicularly to the oscillation direction. The two spring legs are formed like a tuning fork and respectively overlapping upper and lower ends of the two spring legs form the support surface for the lifting platform or the connecting surface with the stationarily arranged support frame. The spring system, in addition to the force in the oscillation direction, compensates by load balancing disturbing forces in directions perpendicular to the oscillation direction.Type: GrantFiled: February 26, 2002Date of Patent: April 6, 2004Assignee: SMS Demag AGInventor: Horst Grothe
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Publication number: 20040050528Abstract: An apparatus for the continuous casting of metals, especially of steel, is equipped with a base frame (2) carrying a continuous casting mold (1) and an oscillating device (3) disposed on the base frame (2) and with a foot roller frame (4) disposed on the foot end (1a) of the continuous casting mold (1). In order to obtain better protection for the mold region and components disposed downstream thereof, it is proposed that the continuous casting mold (1) together with an oscillation frame (3b) and an oscillating drive (3a) engaging the oscillating frame (3b) be arranged in an upwardly and laterally closed housing (5) and that the foot roller frame (4) fastened on the continuous casting mold (1) extends through a laterally shielding lower housing (6).Type: ApplicationFiled: July 21, 2003Publication date: March 18, 2004Inventors: Adolf Gustav Zajber, Thomas Fest
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Patent number: 6701999Abstract: A a process for producing slabs from steel, in which the strand leaves a permanent mold with liquid melt enclosed by the strand shell and, in a downstream strand guiding assembly, the gap between guide rollers mounted in stands is set infinitely variably by adjusting elements connecting lower and upper frames, characterized by the following steps: a) the gap(s) is changed by an oscillation about a predeteminable center line (c) of the gap in such a way that the dynamic influences on the guide rollers are negligible, and no plastic deformation of the strand shell occurs; b) the current gap (s) is recorded, c) at the same time, the actuating force (F) of the adjusting elements and the amplitude (A) of the actuating force are determined, and d) with increasing amplitude (A) of the actuating force (F), the gap (s) is set to a predeterminable value and/or is pressure-controlled by at least one adjusting element.Type: GrantFiled: November 8, 1999Date of Patent: March 9, 2004Assignee: Mannesmann AGInventors: Horst Von Wyl, Ingo Schubert
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Patent number: 6585032Abstract: A strip casting plant with side limits arranged closely adjacent to a carrying belt. The side limits, and preferably the supply device for molten metal, are capable of vibrating and are connected to a device for producing vibrations. The adhesion of solidified material can thus be prevented.Type: GrantFiled: November 5, 2001Date of Patent: July 1, 2003Assignee: Mannesmann AGInventors: Klaus Schwerdtfeger, Karl-Heinz Spitzer, Paul Freier, Thomas Von Hinrichs, Wolfgang Reichelt, Ulrich Urlau, Ewald Feuerstacke, Joachim Kroos, Michael Brühl
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Patent number: 6550527Abstract: In a continuous-casting apparatus with a mold-supporting device (4) and a mold (1) mounted to oscillate relative to the supporting device, the mold (1) is supported via guide elements (7, 10) extending approximately transversely to the direction of oscillation arranged approximately parallel to one another and, relative to the direction of oscillation (III), at a distance (12) one above the other. At least one first guide element (7) extends from the mold-supporting device (4) towards the mold (1) in a first direction (I) and at least one second guide element (10) extends from the mold-supporting device (4) towards the mold (I) in a direction (II) opposite to the first direction (I).Type: GrantFiled: May 25, 2000Date of Patent: April 22, 2003Assignee: Voest-Alpine Industrienlagenbau GmbHInventors: Heinrich Thoene, Klaus Schoenhuber, Franz Wimmer
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Patent number: 6523601Abstract: Segregation of carbon or alloying elements in a solidifying liquid core during casting of a continuous metal strand of high carbon steel or alloy steel, are disbursed by vibrating hammers engaged with a solidified shell enclosing a liquid steel core. The hammers are located before the end of the liquid core. A vibrator operating at a frequency of between 1000 and 5000 cycles per minute is coupled to the hammers by a support structure forming a dead weight mass for maintaining a metal-to-metal contact with the solidified shell while vibrated by the vibrator. The support structure is guided for stabilizing the hammers and for displacement of the hammers between an operative position and inoperative position.Type: GrantFiled: August 31, 2001Date of Patent: February 25, 2003Inventors: Shlomo Hury, Samuel Kayam, Philip E. Ponikvar, Boris Buziashvili
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Patent number: 6520246Abstract: Device and corresponding method for the continuous casting of molten materials, comprising a vertical duct having the shape of a funnel made of refractory material for receiving molten material, and a second duct where the molten material is cooled off, the two ducts being set one on top of the other and being axially aligned. The molten material is injected into the channel, around a stretch of which electromagnetic means are set for generating magnetic forces on the molten material, the said means consisting of a plurality of windings of electrically conductive material and of a ferromagnetic core and may be electrically supplied to produce a magnetic flux along the direction of the channel, thus producing a set of forces acting on the molten material which are directed orthogonally with respect to the direction of the said magnetic flux so as to maintain detachment of the outer surface of the molten material from the walls of the channel.Type: GrantFiled: February 14, 2001Date of Patent: February 18, 2003Assignee: Danieli & C. Officine Meccaniche S.p.A.Inventors: Alfredo Poloni, Milorad Pavlicevic, Anatoly Kolesnichenko, Andrea Codutti
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Publication number: 20030010470Abstract: The invention relates to a device for the continuous casting of metals, especially steel, by means of a continuous casting mould (1) which is mounted in an oscillating frame (3). Said oscillating frame can be driven so that it oscillates in the direction of casting (2), the course of the oscillation movement and/or the frequency being adjustable. The oscillating frame (3) is mounted with spring assemblies (4a, 4b; 5a, 5b) arranged symmetrically on both sides of the strand, for guiding and weight compensation. The device is used on a continuous casting mould (1) with a shaped casting cross-section (1a), which is mounted in the oscillating frame (3). The leaf-spring-mounted oscillating frame (3) can be operated with the continuous casting mould (1) in a resonance oscillation method in order to give the preliminary section a better surface.Type: ApplicationFiled: August 23, 2002Publication date: January 16, 2003Inventors: Lothar Fischer, Adolf Zajber, Thomas Fest, Siegbert Schwenecke
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Patent number: 6487504Abstract: A method of determining the friction between the strand shell and the mold during continuous casting with an oscillating mold includes measuring with the use of controlled double-acting hydraulic cylinders and with a predeterminable measuring frequency the pressures of always both chambers of all oscillating cylinders as well as the lifting positions of the pistons corresponding to these pressures, and by computing from these data the friction force acting at any point in time between the strand shell and the mold walls.Type: GrantFiled: March 30, 2000Date of Patent: November 26, 2002Assignee: SMS Schloemann-Siemag AktiengesellschaftInventor: Albrecht Girgensohn
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Patent number: 6363998Abstract: A process for producing the oscillation of a continuous casting mold, especially with the use of a hydraulically driven lifting device. So that the heat transfer to the mold and the formation of the casting shell can be effectively controlled, it is proposed that, for any given strand withdrawal rate, the zero line of the mold oscillations relative to the position of the surface of the steel in the mold be moved upward and/or downward during the casting process. As a result of this measure, the quality of the cast product is effectively improved.Type: GrantFiled: December 21, 1999Date of Patent: April 2, 2002Assignees: SMS Schloemann-Siemag Aktiengesellschaft, Acciai Speciali Terni S.p.A.Inventors: Jürgen Sucker, Axel Weyer, Romeo Capotosti, Alessandro Cristallini
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Patent number: 6336496Abstract: An object of the present invention is to provide a process for continuously casting a molten metal which process suppresses the instability of the initial solidification and stably improves the lubrication and the surface properties of the cast metal, and an apparatus therefore, in the process for continuously casting a molten metal an alternating current is applied to an electromagnetic coil which is provided so that it surrounds a continuous casting mold wall or is embedded in the side wall of the mold, whereby an electromagnetic force is exerted on the molten metal poured into the mold which either oscillates in a constant mode or does not oscillate and is starting to be solidified the process of the present invention also comprises periodically changing the amplitude or waveform of the alternating current to be applied, and the apparatus of the present invention is used for the process.Type: GrantFiled: September 16, 1997Date of Patent: January 8, 2002Assignees: Nippon Steel Corporation, Shingeo AsaiInventors: Shigeo Asai, Takehiko Toh, Kiyoshi Wajima, Kenzo Sawada, Eiichi Takeuchi, Kensuke Sassa, Tingju Li
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Publication number: 20010047856Abstract: The invention relates to a strip casting plant with side limits arranged closely adjacent to a carrying belt. The side limits, and preferably the supply device for molten metal, are capable of vibrating and are connected to a device for producing vibrations. The adhesion of solidified material can thus be prevented.Type: ApplicationFiled: August 2, 1999Publication date: December 6, 2001Inventors: KLAUS SCHWERDTFEGER, KARL-HEINZ SPITZER, PAUL FREIER, THOMAS VON HINRICHS, WOLFGANG REICHELT, ULRICH URLAU, EWALD FEUERSTACKE, JOACHIM KROOS, MICHAEL BRUHL
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Patent number: 6298905Abstract: The invention relates to a continuous casting device comprising a support structure (16, 116), a swing lever (24, 124) which is pivotally mounted in the support structure (16, 166) around a first pivotal axis a drive mechanism (34, 134) which is connected to said swing lever (24, 124) and a continuous casting shell (14, 114) which can be impinged upon a cooling medium. A bearing (38, 138) to support the continuous cast shell (14, 114) is pivotally mounted on the swing lever (24, 124) around a second pivotal axis, whereby at least one connection for the cooling medium is integrated into the pivoting bearing (38, 138).Type: GrantFiled: November 29, 1999Date of Patent: October 9, 2001Assignee: Paul Wurth S.A.Inventors: Norbert Kaell, Charles Assa, Rudy Petry, Emile Lonardi
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Patent number: 6289973Abstract: A continuous casting installation comprises an ingot mould and an oscillating holding device used for causing the ingot mould to swing when in a casting position. The installation consists, in a separable manner, of an interchangeable part and a stationary part. To replace the intechangeable part, it is separated from the stationary one and moved using a conveying means, at least along a partial path, from its position of operation into an area beneath the casting position. This enables, especially in the multiline casting installations, the interchangeable part to be transported during the casting process and, for example, along paths comprising straight or arciform segments, to any purposefully selected position and to be replaced by a new interchangeable part to be replaced in multiline installations with no interference with the casting process in any adjacent ingot arrangement.Type: GrantFiled: February 8, 2000Date of Patent: September 18, 2001Assignee: Concast Standard AGInventors: Adalbert Roehrig, Adrian Stilli
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Patent number: 6179041Abstract: A method and an apparatus for the early recognition of ruptures when continuously casting steel using an oscillating mold constructed of copper plates, wherein the method includes continuously and comparatively measuring operating parameters, for example, the temperature distribution with respect to location and time in the copper plates, and analyzing the obtained measurement results. For increasing the probability of an accurate evaluation of indications of an acute tendency of ruptures, two measuring data to be compared are coupled with each other as well as with measuring data of at least one third measuring row, and the measuring data are preferably analyzed online.Type: GrantFiled: June 10, 1998Date of Patent: January 30, 2001Assignee: SMS Schoemann-Siemag AktiengesellschaftInventor: Fritz-Peter Pleschiutschnigg