Having Mold Or Product Vibration Or Reciprocation Patents (Class 164/478)
  • Patent number: 9308580
    Abstract: A method of producing steel with reduced internal stress concentrations is disclosed. In an embodiment, hot steel is shaped by a rolling mill. The resultant steel product is bundled as soon as practicable and the bundle is allowed to cool. Vibration energy is applied to the bundle of steel product so that internal stress concentrations within the steel product are relieved. In an embodiment, a plurality of bundles are stored on a rack and the rack is vibrated, the vibrations being transmitted to the plurality of bundles so that undesired internal stress concentrations within the steel products are relieved. Alternatively, magnetics may be used to relieve the undesired internal stress concentrations within the steel products. Thus, improved steel is produced as well as improved steel that can be produced more rapidly than known techniques.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: April 12, 2016
    Inventor: Franklin Leroy Stebbing
  • Patent number: 8985190
    Abstract: 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: Grant
    Filed: July 10, 2012
    Date of Patent: March 24, 2015
    Assignee: Constellium France
    Inventors: Philippe Jarry, Serge Guy
  • Patent number: 8915291
    Abstract: 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: Grant
    Filed: May 19, 2013
    Date of Patent: December 23, 2014
    Assignee: Sovema S.p.A.
    Inventor: Pietro Farina
  • Publication number: 20140138041
    Abstract: 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: Application
    Filed: July 10, 2012
    Publication date: May 22, 2014
    Applicant: CONSTELLIUM FRANCE
    Inventors: Philippe Jarry, Serge Guy
  • Patent number: 8146649
    Abstract: A method of continuously casting molten steel to produce high surface quality slab by preventing depressions and cracking. The steel is high Al steel having an Al content of 0.1% or more. High-Al molten steel is continuously cast using mold powder containing T—CaO (T—CaO presumes total Ca converted to CaO): 35 to 55%, SiO2: 10 to 30%, Al2O3: 4.0% or less (excluding 0%), MgO: 0.2 to 1.0%, Li2O: 7 to 13%, F: 7 to 13%, C: 10.5 to 14%, and inevitable impurities; and satisfying: 1.6?[T—CaO]/[SiO2]?5 and 0.2?[Li2O]/[SiO2]?1.1. The method is performed by controlling the molten steel surface level fluctuation speed in the mold; the pouring angle of the molten steel in the width direction of the mold; the stroke in the amplitude; and the negative strip time tN as defined.
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: April 3, 2012
    Assignee: Kobe Steel, Ltd.
    Inventors: Takashi Miyake, Hitoshi Nakata, Tsuyoshi Mimura, Tomoaki Omoto, Yukimasa Iwamoto
  • Patent number: 8074703
    Abstract: 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: Grant
    Filed: February 23, 2007
    Date of Patent: December 13, 2011
    Assignee: Danieli & C. Officine Meccaniche S.p.A.
    Inventors: Alfredo Poloni, Andrea De Luca, Marco Ansoldi
  • Patent number: 8016020
    Abstract: 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: Grant
    Filed: February 21, 2007
    Date of Patent: September 13, 2011
    Assignee: Danieli & C. Officine Meccaniche S.p.A.
    Inventor: Alfredo Poloni
  • Publication number: 20110094703
    Abstract: The invention provides a method of continuous casting for producing a slab excellent in surface quality by preventing formation of depressions and occurrence of cracking of a slab even in the case of producing a high Al steel having an Al content of 0.1% or more by continuous casting. At the time of continuous casting of a high-Al molten steel containing prescribed chemical components by using a mold powder, a powder containing T—CaO: 35 to 55%, SiO2: 10 to 30%, Al2O3: 4.0% or less (excluding 0%), MgO: 0.2 to 1.0%, Li2O: 7 to 13%, F: 7 to 13%, C: 10.5 to 14%, and inevitable impurities and satisfying 1.6?[T—CaO]/[SiO2]?5 and 0.2?[Li2O]/[SiO2]?1.1 is used as the mold powder, and operation is carried out while controlling the conditions such as the molten steel surface level fluctuation speed in the mold; the pouring angle of the molten steel in the width direction of the mold; the stroke in the amplitude; and the negative strip time tN defined by a prescribed relational expression.
    Type: Application
    Filed: April 23, 2007
    Publication date: April 28, 2011
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO,
    Inventors: Takashi Miyake, Hitoshi Nakata, Tsuyoshi Mimura, Tomoaki Omoto, Yukimasa Iwamoto
  • Patent number: 7913745
    Abstract: 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: Grant
    Filed: October 15, 2009
    Date of Patent: March 29, 2011
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Yuichi Tsukaguchi, Masayuki Kawamoto, Masahito Hanao, Atsushi Hirata, Hiroshi Hayashi, Manabu Adachi
  • Patent number: 7909086
    Abstract: 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: Grant
    Filed: October 15, 2009
    Date of Patent: March 22, 2011
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Yuichi Tsukaguchi, Masayuki Kawamoto, Masahito Hanao, Atsushi Hirata, Hiroshi Hayashi
  • Patent number: 7814960
    Abstract: 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: Grant
    Filed: January 10, 2008
    Date of Patent: October 19, 2010
    Assignee: Kobe Steel, Ltd.
    Inventors: Hiroshi Kawaguchi, Hirofumi Sasaki
  • Patent number: 7694716
    Abstract: 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: Grant
    Filed: June 15, 2005
    Date of Patent: April 13, 2010
    Assignee: SMS Siemag Aktiengellschaft
    Inventors: Emile Lonardi, Michel Houbart, Charles Assa, Marc Wies
  • Publication number: 20100032129
    Abstract: 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: Application
    Filed: October 15, 2009
    Publication date: February 11, 2010
    Inventors: Yuichi Tsukaguchi, Masayuki Kawamoto, Masahito Hanao, Atsushi Hirata, Hiroshi Hayashi, Manabu Adachi
  • Patent number: 7594534
    Abstract: 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: Grant
    Filed: October 7, 2004
    Date of Patent: September 29, 2009
    Assignees: SMS Demag AG, Main Management Inspiration AG
    Inventors: Heinrich Marti, Jaques Barbè
  • Patent number: 7500510
    Abstract: 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: Grant
    Filed: March 15, 2005
    Date of Patent: March 10, 2009
    Assignee: SMS Demag AG
    Inventors: Horst von Wyl, Joern Hoffmeister, Alfons Krausa, Ulrich Snadny, Ingo Schuster
  • Patent number: 7497244
    Abstract: 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: Grant
    Filed: June 7, 2005
    Date of Patent: March 3, 2009
    Assignee: SMS Demag AG
    Inventors: Erich Hovestädt, Martin Becker, Axel Weyer, Axel Stavenow, Jörn Hoffmeister
  • Patent number: 7490655
    Abstract: 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: Grant
    Filed: June 16, 2005
    Date of Patent: February 17, 2009
    Assignee: SMS Demag AG
    Inventors: Thomas Lamberti, Axel Stavenow, Jörn Hoffmeister, Jürgen Müller, Axel Weyer
  • Publication number: 20080121364
    Abstract: 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: Application
    Filed: June 7, 2005
    Publication date: May 29, 2008
    Applicant: SMS DEMAG AG
    Inventors: Erich Hovestadt, Martin Becker, Axel Weyer, Axel Stavenow, Jörn Hoffmeister
  • Patent number: 6935408
    Abstract: A method for producing steel slabs, whereby the strand leaves an ingot mold with melt enclosed by a strand shell and, in a strand guide located downstream, the opening width of guide rolls mounted in segments with upper and lower frames can be set in a continuous manner with successive steps by adjusting elements that join said guide rolls. An oscillation around a center line of the opening width serves to modify the opening width in order to render the dynamic influences on the guide rolls negligibly small. The amplitude of the opening width oscillation is set to ta quantity, which des not provoke any plastic deformation of the strand shell. The actual opening width of the guide rolls is detected and the actuating force of the adjusting elements as well as the amplitude of the actuating force are determined at the same time.
    Type: Grant
    Filed: July 25, 2001
    Date of Patent: August 30, 2005
    Assignee: SMS Demag AG
    Inventors: Horst von Wyl, Ingo Schubert, Jung Wolfram
  • Patent number: 6889748
    Abstract: 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: Grant
    Filed: May 5, 2001
    Date of Patent: May 10, 2005
    Assignee: SMS Demag AG
    Inventors: Lothar Fischer, Adolf Zajber, Thomas Fest, Siegbert Schwenecke
  • Patent number: 6796365
    Abstract: Method provides ceramic fibers with a matrix that includes aluminum.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: September 28, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Colin McCullough, Doug E. Johnson
  • Patent number: 6715537
    Abstract: 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: Grant
    Filed: February 26, 2002
    Date of Patent: April 6, 2004
    Assignee: SMS Demag AG
    Inventor: Horst Grothe
  • Publication number: 20040050528
    Abstract: 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: Application
    Filed: July 21, 2003
    Publication date: March 18, 2004
    Inventors: Adolf Gustav Zajber, Thomas Fest
  • Patent number: 6701999
    Abstract: 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: Grant
    Filed: November 8, 1999
    Date of Patent: March 9, 2004
    Assignee: Mannesmann AG
    Inventors: Horst Von Wyl, Ingo Schubert
  • Patent number: 6626228
    Abstract: A system and method for repairing turbine components. The system includes means for obtaining a rapidly solidified material having a means of forming a rapidly solidified repair material and a means for melting the rapidly solidified repair material at a repair site located in a region of the turbine component. The means for obtaining the rapidly solidified material include melt spinning, planar flow, and melt extraction systems. Means for melting the rapidly solidified repair material include a welding torch, an electron beam, a laser beam, a welding torch, a TIG welder, and a plasma torch.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: September 30, 2003
    Assignee: General Electric Company
    Inventors: Bernard Patrick Bewlay, Peter George Frischmann
  • Publication number: 20030145976
    Abstract: The invention relates to 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:
    Type: Application
    Filed: November 8, 1999
    Publication date: August 7, 2003
    Inventors: HORST VON WYL, INGO SCHUBERT
  • Patent number: 6585032
    Abstract: 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: Grant
    Filed: November 5, 2001
    Date of Patent: July 1, 2003
    Assignee: Mannesmann AG
    Inventors: Klaus Schwerdtfeger, Karl-Heinz Spitzer, Paul Freier, Thomas Von Hinrichs, Wolfgang Reichelt, Ulrich Urlau, Ewald Feuerstacke, Joachim Kroos, Michael Brühl
  • Patent number: 6520246
    Abstract: 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: Grant
    Filed: February 14, 2001
    Date of Patent: February 18, 2003
    Assignee: Danieli & C. Officine Meccaniche S.p.A.
    Inventors: Alfredo Poloni, Milorad Pavlicevic, Anatoly Kolesnichenko, Andrea Codutti
  • Publication number: 20030010470
    Abstract: 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: Application
    Filed: August 23, 2002
    Publication date: January 16, 2003
    Inventors: Lothar Fischer, Adolf Zajber, Thomas Fest, Siegbert Schwenecke
  • Patent number: 6487504
    Abstract: 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: Grant
    Filed: March 30, 2000
    Date of Patent: November 26, 2002
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventor: Albrecht Girgensohn
  • Patent number: 6453985
    Abstract: A method of continuously casting molten metal has the step of feeding molten metal into a mold to produce a casting continuously while generating an electromagnetic field in the mold by applying a high frequency to the mold. The application of the high frequency is controlled in such a manner that a magnitude of an electromagnetic field which is applied to a solidification shell forming start location of the mold becomes equal to or greater than a minimum required flux density to be applied to the mold. The minimum required flux density is determined according to the following equation: B min = 1130 × t n - 5 ⁢ f × ( t n - 0.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: September 24, 2002
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Hitoshi Nakata, Takeshi Inoue, Hideo Mori
  • Publication number: 20020079084
    Abstract: 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: Application
    Filed: November 5, 2001
    Publication date: June 27, 2002
    Applicant: Mannesmann AG
    Inventors: Klaus Schwerdtfeger, Karl-Heinz Spitzer, Paul Freier, Thomas Von Hinrichs, Wolfgang Reichelt, Ulrich Urlau, Ewald Feruerstacke, Joachim Kroos, Michael Bruhl
  • Patent number: 6363998
    Abstract: 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: Grant
    Filed: December 21, 1999
    Date of Patent: April 2, 2002
    Assignees: SMS Schloemann-Siemag Aktiengesellschaft, Acciai Speciali Terni S.p.A.
    Inventors: Jürgen Sucker, Axel Weyer, Romeo Capotosti, Alessandro Cristallini
  • Patent number: 6336495
    Abstract: Method of making wire comprising polycrystalline &agr;-Al2O3 fibers within a matrix of substantially pure elemental aluminum, or an alloy elemental aluminum and up to about 2% copper.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: January 8, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Colin McCullough, Andreas Mortensen, Paul S. Werner, Herve E. Deve, Tracy L. Anderson
  • Publication number: 20010047856
    Abstract: 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: Application
    Filed: August 2, 1999
    Publication date: December 6, 2001
    Inventors: KLAUS SCHWERDTFEGER, KARL-HEINZ SPITZER, PAUL FREIER, THOMAS VON HINRICHS, WOLFGANG REICHELT, ULRICH URLAU, EWALD FEUERSTACKE, JOACHIM KROOS, MICHAEL BRUHL
  • Publication number: 20010027854
    Abstract: Steel is continuously cast in a mold at a casting speed of 2.5 to 10 m/min while the mold is oscillated so as to satisfy the relationship 450≦(S×f/Vc)≦1000, wherein S is the stroke of mold oscillation in mm, f is the frequency of mold oscillation in cycles per minute, and Vc is the casting speed in m/min.
    Type: Application
    Filed: February 23, 2001
    Publication date: October 11, 2001
    Inventors: Hirohisa Kikuchi, Masayuki Kawamoto, Masashi Hara, Toshihiko Murakami, Masahiko Oka, Masahiro Ikeda
  • Patent number: 6298905
    Abstract: 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: Grant
    Filed: November 29, 1999
    Date of Patent: October 9, 2001
    Assignee: Paul Wurth S.A.
    Inventors: Norbert Kaell, Charles Assa, Rudy Petry, Emile Lonardi
  • Patent number: 6296719
    Abstract: In the production of high permeability electrical steel, the control of condition of thin slab continuous casting allows to obtain advantageous solidification structures and precipitates. This, in turn, allows to decritize the process for controlling the grain dimensions and to add nitrogen to the cold rolled sheet, such as to immediately form aluminum nitride.
    Type: Grant
    Filed: February 26, 1999
    Date of Patent: October 2, 2001
    Assignee: Acciai Speciali Terni S.p.A.
    Inventors: Stefano Fortunati, Stefano Cicale', Giuseppe Abbruzzese
  • Patent number: 6289973
    Abstract: 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: Grant
    Filed: February 8, 2000
    Date of Patent: September 18, 2001
    Assignee: Concast Standard AG
    Inventors: Adalbert Roehrig, Adrian Stilli
  • Patent number: 6273964
    Abstract: In the production of grain oriented electrical steel sheet, controlling the condition of thin slab continuous casting results in advantageous solidification structures and precipitates. The steel has an initial content of carbon less than 300 ppm and an initial content of acid-soluble aluminum higher than that normally used for said type of steel. During the final processing steps, the annealed sheet is nitrided through a limited amount of nitrogen. This, in turn, renders the process for controlling the grain dimensions much less critical and results in a constant quality product.
    Type: Grant
    Filed: February 26, 1999
    Date of Patent: August 14, 2001
    Assignee: Acciali Speciali Terni S.p.A.
    Inventors: Stefano Fortunati, Stefano Cicale', Giuseppe Abbruzzese
  • Patent number: 6176295
    Abstract: The plate mold has water-cooled narrow side walls that can be clamped between broad side walls. The broad side walls have at least three adjacent and mutually independent cooling segments. The cooling segments are divided symmetrically relative to the central axis of the mold and have, in the region of the mold mouth, separate connections for the independent supply of a liquid coolant. The apparatus includes temperature sensors, an oscillation device, an actuator for adjusting the space between the narrow and broad side walls and a control device connected to the temperature sensors to control the oscillation device and the actuator.
    Type: Grant
    Filed: March 11, 1998
    Date of Patent: January 23, 2001
    Assignee: Mannesmann Aktiengesellschaft
    Inventor: Fritz-Peter Pleschiutschnigg
  • Patent number: 6167940
    Abstract: The patent describes an oscillating device for a continuous casting mould with a supporting structure (10), an oscillating lever (12), which has a forked first lever arm (30) and a second opposing lever arm (32), this oscillating lever (12) being mounted in the supporting structure by means of first swivel joints (26′, 26″) so as to be vibratable about an axis (28), and a stroke generator (14), which is connected to the second lever arm (32) of the oscillating lever (12). The oscillating device according to the invention comprises a supporting cage (18) for suspension of a continuous casting mould (20), this supporting cage (18) being connected via second swivel joints (40′, 40″) to the forked first lever arm (30) of the oscillating lever (12).
    Type: Grant
    Filed: August 19, 1998
    Date of Patent: January 2, 2001
    Assignee: Paul Wurth, S.A.
    Inventors: Emile Lonardi, Radomir Andonov, Hubert Stomp, Rudy Petry, Norbert Kaell, Andr{acute over (e)} Kremer
  • Patent number: 6167941
    Abstract: A support structure for an oscillating continuous casting mold has fixed vertical support beams and oscillating frames attached to the fixed support beams by links with rigid intermediate portions connected by leaf spring hinges to the beams and the support frames.
    Type: Grant
    Filed: December 4, 1998
    Date of Patent: January 2, 2001
    Assignee: SMS Schloemann-Siemag AG
    Inventor: Stephan Schallenberg
  • Patent number: 6138743
    Abstract: A device for continuously casting steel includes a continuous casting mold supported in a lifting table and oscillating in the casting direction and at least one oscillation drive acting on the lifting table. The lifting table is constructed with guide blocks extending underneath the plane of the table and a stationary clamping block is arranged between the guide blocks. At least two individual resiliently soft plate springs are mounted along the short sides of the mold underneath the table plane in both sides of the clamping block and extending between the clamping block and the adjacent guide block, wherein the plate springs are arranged at a distance one above the other and so as to extend parallel relative to the corresponding plate springs arranged at the opposite short side of the mold.
    Type: Grant
    Filed: April 14, 1999
    Date of Patent: October 31, 2000
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Adolf Zajber, Axel Weyer, Gerhard Arnolds
  • Patent number: 6079478
    Abstract: A device for the continuous casting of steel includes a continuous casting mold which oscillates in the casting direction, wherein the continuous casting mold is arranged in a lifting table of a stationary base frame, wherein the lifting table is connected to an oscillating drive, and wherein guide elements are provided for the lifting table on both sides transversely of the casting direction. The guide elements are constructed as plate-shaped frames with transverse struts and always two plate-shaped frames located opposite each other and at a distance from each other are combined to form a pair of plate-shaped frames, wherein each plate-shaped frame is connected to the base frame, on the one hand, and to the lifting table, on the other hand.
    Type: Grant
    Filed: June 1, 1998
    Date of Patent: June 27, 2000
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventor: Horst Grothe
  • Patent number: 6065527
    Abstract: A mold table for the continuous casting of large strands has two separate parts. The mold table parts are coupled to opposite ends of an elongated rigid rotatable member by respective linkages. A drive oscillates the rotatable member which, in turn, constrains the mold table parts to oscillate synchronously.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: May 23, 2000
    Assignee: SMS Concast Division of SMS Schloemann-Siemag Inc.
    Inventors: Michael Poran, Anthony E. Scotto
  • Patent number: 6024162
    Abstract: To provide a continuous casting method for a billet capable of stable casting without causing rhomboidity or side periphery deformation in the billet produced by continuous casting, in a casting mold used for this method, recess portions each comprising one or a plurality of transverse grooves or a large number of dimples are disposed below the lowermost position of a meniscus under a steady operation state within a distance of 200 mm on the inner peripheral surface of the casting mold so that a solidified shell is gradually cooled and the cooling capacity of each inner surface of the casting mold is substantially uniform.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: February 15, 2000
    Assignee: Nippon Steel Corporation
    Inventors: Masatsugu Uehara, Toshiki Sato, Teruo Fujinaga, Kazutoki Nakao
  • Patent number: 6015006
    Abstract: A continuous casting mould comprises a fixed part (2) and a moveable part (1) and the latter includes means defining the mould passage. The moveable part is displaced relative to the fixed part generally in the direction of casting. The moveable part (1) is guided relative to the fixed part (2) by a plurality of guidance elements (4) each of which has a pair of opposit faces (6) which are arcuate convex form. The faces of each element are urged into abutting relation with cooperating surfaces on the fixed and moveable parts to allow rocking of the element relative to the surface.
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: January 18, 2000
    Assignee: Davy Distington Limited
    Inventors: Ian Cassels, James Nicholas Cooper
  • Patent number: 6003590
    Abstract: Device for the continuous casting of billets, blooms, slabs and round bars, the device being associated with a crystalliser (10) containing the cast metal, the crystalliser (10) having sidewalls (11) which cooperate with cooling channels (16-24) defined by outer walls (15), the device comprising a plurality of devices located outside the sidewalls (11) of the crystalliser, the electromagnetic devices (18a, 18b, 18c) cooperating directly with the sidewalls (11) and being spaced apart longitudinally along the direction of sliding of the cast product, and fed in an independent, separate and differentiated manner from each other, the feeding being a function of the generation of a pulsating electromagnetic field in a direction substantially perpendicular to the axis of the crystalliser (10) and migrating substantially along the whole longitudinal extent of the crystalliser (10), the current pulses achieving a value of up to 100 kA.
    Type: Grant
    Filed: May 13, 1997
    Date of Patent: December 21, 1999
    Assignee: Danieli & C. Officine Meccaniche SpA
    Inventors: Milorad Pavlicevic, Alfredo Poloni, Nuredin Kapaj, Andrea Codutti
  • Patent number: 5947186
    Abstract: Method and device to obtain vibrations in the walls of the crystalliser (11) in an ingot mould (10) by use of actuators, the ingot mould (10) including a channel use (13) for the circulation of cooling liquid, the ingot mould (10) being associated with a conventional system of oscillation, there being induced on the crystalliser (11) vibrations of small amplitude and high frequency and acceleration obtained by exciting an actuator (16) comprising an element in magnetostrictive alloy (18) arranged in cooperation with at least one face of the crystalliser (11) itself, the element in magnetostrictive alloy (18) being excited by an electromagnetic field.
    Type: Grant
    Filed: September 24, 1997
    Date of Patent: September 7, 1999
    Assignee: Danieli & C. Officine Meccaniche SpA
    Inventors: Milorad Pavlicevic, Nuredin Kapaj, Alfredo Poloni, Andrea De Luca