Plural Distinct Shaping Outlets Patents (Class 164/420)
  • Patent number: 10968751
    Abstract: A turbine blade for a gas turbine engine. The turbine blade having a plurality of cooling holes defined therein, at least some of the plurality of cooling holes being located on a suction side of an airfoil of the turbine blade and in fluid communication with an internal cavity of the turbine blade; and wherein the at least some of the plurality of cooling holes are located in the airfoil according to the coordinates of Tables 1 and/or 2.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: April 6, 2021
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Rafael A. Perez, Eleanor D. Kaufman, Donald Kastel, Andres E. Diaz, Efrain E. Vega, Juan Pablo Lopez
  • Patent number: 10926320
    Abstract: A transition plate for use in a direct chill (DC) casting system comprises a substantially annular body having an upper face and a lower face. At least a lower part of the body adjacent the lower face is made of a gas permeable refractory material, whereby gas can pass through the gas permeable refractory material and escape from the transition plate through at least the lower face.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: February 23, 2021
    Assignee: Pyrotek Engineering Materials Limited
    Inventor: Mark Vincent
  • Patent number: 10081053
    Abstract: A distribution device for use with a vertical casting system includes a body made of a refractory material, which includes a base and a peripheral wall. The base and the peripheral wall enclose a trough for containing and distributing liquid metal. A thermally insulating layer is located in a recess beneath the base. The refractory material of the body has a first thermal conductivity and the thermally insulating layer is made of a material having a second thermal conductivity that is less than the first thermal conductivity.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: September 25, 2018
    Assignee: PYROTEK ENGINEERING MATERIALS LIMITED
    Inventors: Mark Vincent, Mark Palmer
  • Patent number: 9803879
    Abstract: A louver system for controlling airflow in a duct from a forced air heating, ventilation, and air conditioning (HVAC) system with a housing and a louver located on a mounting fascia. The system having a longitudinal slat located in the perimeter wall that is movable between the fully open position and the fully closed position via a slat positioning assembly. The slat positioning assembly is powered by a mainspring assembly. A winding assembly is operatively coupled to the mainspring assembly which is wound by a motor or a hand crank. A local control system having a microprocessor, a transmitter, and a receiver sends a positioning signal to the slat positioning assembly that rotates the slat to a specified position via power from the mainspring assembly.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: October 31, 2017
    Inventor: Daniel P. Casey
  • Patent number: 8955577
    Abstract: An apparatus for producing elongated rolled products contains a steelmaking station for producing liquid metal having at a first production rate, a rolling mill having a second production rate, and a continuous casting station located between the steelmaking station and the rolling mill. The continuous casting station contains at least two casting lines, each line being operable to produce elongated intermediate products. A first casting line is directly aligned with the rolling mill to feed the rolling mill with casted products, and at least one second casting line not aligned with the rolling mill and not feeding the rolling mill. The apparatus further contains a varying device for varying simultaneously the production rate of the first casting line and the production rate of the at least one second casting line depending on a difference between the steelmaking station production rate and the rolling mill production rate.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: February 17, 2015
    Assignee: Siemens S.p.A.
    Inventors: Ezio Colombo, Ugo Zanelli
  • Patent number: 8950466
    Abstract: A method for producing elongated rolled products uses a steelmaking station for producing liquid metal at a first production rate, a rolling mill having a second production rate, and a continuous casting station located between the steelmaking station and the rolling mill. The continuous casting station contains at least two casting lines, each line being operable to produce elongated intermediate products. A first casting line is directly aligned with the rolling mill to feed the rolling mill with casted products, and at least one second casting line not aligned with the rolling mill and not feeding the rolling mill. The method further uses a varying device for varying simultaneously the production rate of the first casting line and the production rate of the at least one second casting line depending on a difference between the steelmaking station production rate and the rolling mill production rate.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: February 10, 2015
    Assignee: Siemens S.p.A.
    Inventors: Ezio Colombo, Ugo Zanelli
  • Patent number: 8381795
    Abstract: A casting apparatus is presented. The casting apparatus includes a first chamber and a second chamber. The first chamber includes a crucible and a sealed discharge outlet. The second chamber includes a casting mold for casting a plurality of filaments of a superalloy composition. The second chamber further includes a discharge inlet aligned with the sealed discharge outlet of the first chamber. The casting apparatus further includes a first port for applying a positive pressure to the first chamber and a second port for applying a vacuum to the second chamber. The sealed discharge outlet includes a hermetic seal comprising a material having a melting temperature equal to or greater than a melting temperature of the superalloy composition.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: February 26, 2013
    Assignee: General Electric Company
    Inventors: Laurent Cretegny, Bernard Patrick Bewlay
  • Patent number: 8162031
    Abstract: A method of making steel comprising assembling a steelmaking furnace, a thin strip caster, and a mold caster, inputting to a computer data on demand for production output, raw materials, furnace availability and capacity, sequence schedules and through-put, capacities and variability, forecasting by processing by computer from the inputted data a production schedule for the steelmaking furnace, and sequence schedules for the thin strip and the mold casters as a function of molten metal availability, the thin strip and mold caster sequence schedules and through-put, and demand for production output, directing production of molten metal alternatively to the delivery systems of the thin strip caster and mold caster responsive to said forecasting, and varying during casting the rate of metal delivery through the delivery system of the thin strip caster responsive to molten metal availability and the mold caster through-put.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: April 24, 2012
    Assignee: Nucor Corporation
    Inventor: Richard Wechsler
  • Patent number: 8042602
    Abstract: A method of making steel comprising assembling a steelmaking furnace, a thin strip caster, and a mold caster, inputting to a computer data on demand and customer requirements for production output, raw materials, furnace availability and capacity, ladle treatment for casting, sequence schedules and through-put, capacities and variability, forecasting by processing by computer from the inputted data a production schedule for the steelmaking furnace and ladle treatment, and sequence schedules for the thin strip and the mold casters as a function of molten metal availability, the thin strip and mold caster sequence schedules and through-put, and demand for production output, directing production of molten metal alternatively to the delivery systems of the thin strip caster and mold caster responsive to said forecasting, and varying during casting the rate of metal delivery through the delivery system of the thin strip caster responsive to molten metal availability and the mold caster through-put.
    Type: Grant
    Filed: June 6, 2010
    Date of Patent: October 25, 2011
    Assignee: Nucor Corporation
    Inventor: Richard Wechsler
  • Publication number: 20110048667
    Abstract: A device in connection with equipment for continuous or semi-continuous casting of metal, in particular direct mould (DC) casting of aluminium in the form of a billet or wire billet, comprising a mould with a cavity or mould (3) that is provided with an inlet connected, via supply channels (6, 18) and a distribution chamber (5), to a metal reservoir (13) and an outlet arranged in the mould with a support and devices for cooling the metal. In connection with the supply channels (6, 18) between the metal reservoir (13) and the moulds (3), a metal lifting container (15) is arranged that is connected at an inlet (16) to the metal reservoir (13) via a channel (18) and to the distribution chamber (5) and the moulds (3) via an outlet (17) via another channel (6).
    Type: Application
    Filed: November 26, 2008
    Publication date: March 3, 2011
    Applicant: NORSK HYDRO ASA
    Inventors: Bjorn Vaagland, John Olav Fagerlie, John Erik Hafsås, Arild Håkonsen, Geir Oyen, Terje Iveland
  • Publication number: 20110036530
    Abstract: A process of making a multilayer metallic casting includes steps of simultaneously forming a first layer of a first metallic material and a second layer of a second metallic material using a continuous casting process, and continuously bonding the first and second layers to form a integrally cast multilayer metallic casting. The process may be performed using a twin-roll type continuous casting system having a continuous casting mold that includes a first mold compartment for receiving a molten first metallic material and a second mold compartment for receiving a molten second metallic. The molten first and second types of metallic material are gradually solidified into semi-solid shells and are pressed together by opposed casting rolls, creating a metallurgical bond between the first and second types of metallic material in order to form an integrally cast multilayer metallic casting. The process permits the large scale efficient manufacturing of near net shape multilayer metallic castings.
    Type: Application
    Filed: August 11, 2009
    Publication date: February 17, 2011
    Inventor: James B. Sears, JR.
  • Patent number: 7036557
    Abstract: 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: Grant
    Filed: September 2, 2003
    Date of Patent: May 2, 2006
    Assignee: SMS Demag Aktiengesellschaft
    Inventors: Thomas Fest, Herbert Brotzki, Martin Becker, Adolf Gustav Zajber
  • Patent number: 7004229
    Abstract: An apparatus is described for starting and stopping a horizontal casting machine, e.g. a caster for continuous casting of metal ingots. The caster comprises a feed trough for carrying molten metal, at least one casting mould and a connecting trough separately connecting each casting mould to the feed trough. A shutoff gate is associated with each connecting trough and movable between an open position and a closed position. Each connecting trough includes a drop-down portion located between the shutoff gate and the casting mould, this drop-down portion being adapted to swing downwardly and thereby rapidly drain molten metal from the connecting trough and an entrance of the mould. The apparatus may also include an elongated starter block, adapted to be inserted into the casting mould and having a threaded recess formed therein for receiving molten metal. An O-ring is fitted to the starter block to seal the block against the casting mould.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: February 28, 2006
    Assignee: Novelis, Inc.
    Inventors: David A. Salee, Jack Hamby, Wade Lee Bowles, John Steven Tingey
  • Patent number: 6942011
    Abstract: The invention relates to a mold divider for fitting in a conventional slab mold (1) having laterally adjustable narrow-side parts for selective casting of several strands with changeable strand widths. The mold divider consists of a housing (3) fixedly securable relative to the mold (1), between the broad-side plates (2) and having bilaterally adjustable, in a broad-side direction of the mold (1), adjusting organs (4), with supporting plates (5) provided at their ends and with the narrow-side heat-exchanger plates (6) arranged thereon.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: September 13, 2005
    Assignee: Hilti Aktiengesellschaft
    Inventors: Ottmar Anton, Karl Otto Liebisch, Heinz-Peter Kaiser, Michael Dreis, Edmund Becker, Alfons Krausa, Horst von Wyl
  • Patent number: 6647604
    Abstract: A rolling system has a die having a row of separate throughgoing passages for producing a plurality of continuously advancing and parallel hot metal strands and a plurality of pinch rollers for pulling the strands out of the die and moving them in a direction along a path. A vertical-roll stand on the path receives the strands and horizontally compresses them. A horizontal-roll stand on the path aligned in the direction with the vertical-roll stand receives the strands and vertically compresses them. The rolls are rotated to draw the strands downstream.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: November 18, 2003
    Assignee: SMS Demag Aktiengesellschaft
    Inventor: Ferruccio Sclippa
  • Patent number: 5850870
    Abstract: Balance beams are pivotally mounted on and crosswise of an elongated rack extending parallel to a trough over a series of mold cavities, valve closure devices are suspended from corresponding first end portions of the beams to throttle valve openings in the trough, float sensors are suspended from points on the opposing second end portions of the beams to contact the surfaces of molten metal columns brought to a state of equilibrium in the cavities, and the rack is elevated in relation to the cavities as molten metal is delivered to the trough, so that as the first end portions impose a desired value on the rate at which the surfaces escalate up the axes of the cavities, the second end portions elevate the suspension points for the sensors at a rate commensurate therewith, to assure that the input signals transmitted to the first portions through the fulcra for the beams, are consistent with the imposed value.
    Type: Grant
    Filed: January 19, 1998
    Date of Patent: December 22, 1998
    Assignee: Wagstaff Inc.
    Inventors: Frank Everton Wagstaff, Aaron David Sinden, David Alan Salee
  • Patent number: 5690162
    Abstract: In vertical-type continuous casting in which a plurality of ingots are cast by pouring molten metal into a plurality of molds each composed of upper and lower dies and by lowering the lower dies in a predetermined path at a casting speed, the upper dies having different casting diameters are arranged on a common table for casting the ingots of different diameters simultaneously on the table 8.
    Type: Grant
    Filed: May 8, 1996
    Date of Patent: November 25, 1997
    Assignee: YKK Corporation
    Inventor: Toshiyuki Ishikawa
  • Patent number: 5642770
    Abstract: Disclosed is an apparatus for the prevention of unacceptable rotation control of a vertical non-ferrous metal casting apparatus during the casting process, and more particularly for aluminum. A guide key internal to the ram interacts with an inset keyway in the guide column to prevent the unacceptable rotation of the ram during casting.
    Type: Grant
    Filed: July 31, 1995
    Date of Patent: July 1, 1997
    Assignee: Wagstaff, Inc.
    Inventors: James A. Imthurn, Len J. Wiater, Graham T. Beaven
  • Patent number: 5582229
    Abstract: A continuous casting plant for the optional casting of an ingot of slab cross section or of ingots of smaller cross section has a first structural unit which is developed as plate mold for the casting of an ingot of slab cross section. This structural unit is supported on a mold support structure (1) and can be replaced by a second structural unit (16) having molds (21, 22, 23) for the casting of ingots of smaller cross section. For the dependable supporting of the molds (21, 22, 23) for the casting of a smaller cross section, the second structural unit (16) is formed of two longitudinal girders (17, 17') which are arranged spaced from and approximately parallel to each other and are rigidly connected to each other, the molds (21, 22, 23) being supported on the longitudinal girders (17, 17').
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: December 10, 1996
    Assignee: Voest-Alpine Industrieanlagenbau GmbH
    Inventors: Helmut Festl, Helmut Eidinger, Richard Kasmader
  • Patent number: 5564488
    Abstract: The apparatus includes a pouring ladle with a sealable bottom opening and a distributing channel arranged beneath the ladle for the purpose of storing molten metal. The distributing channel is provided with at least two bottom openings that are openable and closable in a controlled manner. A separate tub-shaped basin is arranged beneath each bottom opening of the distributing channel and at least one mold is detachably connected to a bottom portion of each of the tub-shaped basins.
    Type: Grant
    Filed: June 22, 1994
    Date of Patent: October 15, 1996
    Assignee: Mannesmann Aktiengesellschaft
    Inventors: Joachim V. Schnakenburg, Franz Keutgen, Dieter Perings, Heinz-Josef Leuwer, Rudiger Winterhager, Peter Stadler
  • Patent number: 5431213
    Abstract: A method for automated injection of gas into a casting installation including a large number of ingot molds each equipped with a refractory header. Gas introduction slots of particular dimensions are used, with a gas circuit comprising reservoirs R1 and R2, flow meters FT1 and FT2, flow regulators, pressure regulators and valves, so disposed that the components of the system are able to maintain a suitable gas pressure over the ingot molds, detect any failure in any ingot mold and be able to check the condition of the slots after casting.
    Type: Grant
    Filed: November 10, 1993
    Date of Patent: July 11, 1995
    Assignee: Aluminium Pechiney
    Inventor: Laurent Jouet-Pastre
  • Patent number: 5409054
    Abstract: In the process, which enables complete automation of casting and limiting the intervention of the operator, the level of metal in the supply runner is monitored, a common law of metal levels is set as a function of time for all ingot molds after individual laws have been applied to each of the molds in order to permit them to meet the common law, lowering of the table supporting the molds is actuated and the casting process is halted when the program length has been obtained. The apparatus comprises probes for detecting the height and levels of metal in the runner and in the ingot molds, and an automation system for adjusting the levels and controlling the various operations.
    Type: Grant
    Filed: January 27, 1994
    Date of Patent: April 25, 1995
    Assignees: Aluminum Pechiney, Pechiney Rhenald
    Inventor: Jacques Moriceau
  • Patent number: 5404931
    Abstract: A method of manufacturing strips, bars and wire rods comprises continuously supplying molten metal into an open-top endless casting groove on an annular mold that is rotated around a vertical shaft, cooling the molten metal in the casting groove from outside by forcibly cooling the annular mold, and continuously taking out the cast section from the casting groove at a point where a solidified shell has been formed throughout the entire circumference of the molten metal in the casting groove. A roll is provided upstream of the take-out point to depress the top surface of the cast section, thereby keeping the cast section in close contact with the surface of the casting groove. The cast section then slides diagonally upward over a surface inclined at an angle of 5 to 60 degrees that is provided on the exit side of the above roll in the casting groove.
    Type: Grant
    Filed: November 22, 1993
    Date of Patent: April 11, 1995
    Assignee: Nippon Steel Corporation
    Inventors: Einao Anzai, Hirobumi Maede, Ryuji Watanabe, Masami Wajima
  • Patent number: 5370173
    Abstract: Process and apparatus for vertical continuous casting of metal in at lest one hot-top mold with metal supplied at constant level. The object of the invention is to provide a process and an apparatus that make it possible, while supplying metal at constant level, to avoid non-uniform temperature gradients, turbulence, and waste of metal. According to the invention this is achieved by coordinating the level, flow rate and distribution of molten metal to each hot-top mold from the outlet opening of a smelting furnace.
    Type: Grant
    Filed: March 12, 1993
    Date of Patent: December 6, 1994
    Assignee: VAW Aluminium AG
    Inventors: Wolfgang Schneider, Hans P. Krug
  • Patent number: 5358028
    Abstract: A horizontal multiple-strand continuous casting plant and a method of operating the plant. The casting plant includes a distributor with several molds and a corresponding strand drawing unit which conveys the individual strands out of the molds by means of pulling movements and return pushing movements, wherein the strands can be individually clamped within the strand drawing unit. The strand drawing unit includes two clamping devices which alternatingly carry out the pulling movements and the return pushing movements. In the event of an interruption in one of the molds, the method includes connecting in a frictionally engaging manner the strand located in the affected mold to one of the two clamping devices of the strand drawing unit by actuating the corresponding clamping device only during at least one return pushing movement, and disconnecting from this strand the second clamping unit during the pulling movement thereof.
    Type: Grant
    Filed: June 10, 1993
    Date of Patent: October 25, 1994
    Assignee: Mannesmann Aktiengesellschaft
    Inventors: Franz Keutgen, Heinz-Josef Leuwer, Dieter Perings, Joachim Von Schnakenburg, Dietmar Zebrowski, Peter Stadler, Rudiger Winterhager
  • Patent number: 5348072
    Abstract: A continuous casting plant for the horizontal casting of steel in several strands includes a casting ladle with two discharge openings provided in the bottom of the casting ladle. Each discharge opening is provided with a closure device. Each discharge opening has at least one tundish channel provided with at least one outlet opening. A mold fixedly attachable to the tundish channel is arranged in axial alignment with each outlet opening. Each tundish channel is mounted with the corresponding mold or molds on a tundish car. The tundish cars are movable underneath the casting ladle horizontally and transversely of the casting direction on a track formed by rails between a preparation position and a casting position. Between the preparation position and the casting position, the rails have rail sections which are displaceable from the rail travel direction. The length of the rail sections is such that the rail sections can receive one of the tundish cars.
    Type: Grant
    Filed: February 22, 1993
    Date of Patent: September 20, 1994
    Assignee: Mannesmann Aktiengesellschaft
    Inventors: Franz Keutgen, Heinz-Josef Leuwer, Dieter Perings, Peter Stadler, Rudiger Winterhager
  • Patent number: 5343933
    Abstract: Process and apparatus for the continuous casting of aluminum alloys in multiple moulds to form continuous castings of improved quality. The invention comprises supplying gas at a predetermined gas flow rate to each mould during the mould filling stage, sensing the gas pressure during the second casting or cooling stage and increasing or reducing the gas flow rate to maintain a predetermined gas pressure in the moulds during the continuous extrusion process.
    Type: Grant
    Filed: February 5, 1993
    Date of Patent: September 6, 1994
    Assignee: VAW Aluminium AG
    Inventors: Wolfgang Schneider, Horst-Dieter Lindlar, Roland Schmoll
  • Patent number: 5267604
    Abstract: A control system in combination with a horizontal continuous caster includes a casting system drive motor having a control loop operative thereon which also includes a start of stroke board. A cam selection system provides for application of individual cam profiles to the control loop of the motor. A display system provides display of the individual applied cam profiles and actual casting motion. Additional monitoring systems provide direct control of multiple system functions during the casting process. The control system based on velocity versus time is simplified in construction and provides rapid and precise control.
    Type: Grant
    Filed: November 1, 1990
    Date of Patent: December 7, 1993
    Assignee: Steel Casting Engineering, Ltd.
    Inventors: Ralph Kuttner, Timothy J. McGrath
  • Patent number: 5249622
    Abstract: A continuous casting apparatus includes two adjacent continuous casters each with relatively narrow end walls and relatively broad side walls, the end walls being clamped between the side walls. Mechanisms at either end move the respective end walls toward and away from each other, and may also change the slope of the end walls in order to accommodate shrinkage of the metal as it solidifies. The two casters are positioned in alignment and a single tundish is located above them but as close as possible, the tundish being capable of delivering molten metal into both casters simultaneously. The tundish covers and restricts access to the space separating the adjacent ends of the casters. The free end of each caster, however, is accessible, and its respective mechanism can be operated without inconvenience.
    Type: Grant
    Filed: April 13, 1992
    Date of Patent: October 5, 1993
    Assignee: Stelco Inc.
    Inventor: Frank J. Dalimonte
  • Patent number: 5170838
    Abstract: Upstream of the dies (14) internally insulated in the upper region is a casting furnace and a runner system, which latter comprises a distributor through feeding all the dies (14) with metal at an identical level (60). In the region situated below an inner ring (32), a gas cushion (54) which prevents direct contact of the die (14) with the molten metal (30) is maintained, and oil is injected into this region. A joint main having distribution lines conducts air or an inert gas having the same, slight overpressure into all the dies (14). The relative pressure between a desired value dependent on the metal level (H.sub.1) and computed by program and an actual value measured in the main (62) serves for regulation and monitoring. Upon overshooting of the programmed, maximum deviation of the controlled variable, a processor triggers a manipulated variable for the actuator of the pressure control valve.
    Type: Grant
    Filed: March 25, 1991
    Date of Patent: December 15, 1992
    Assignee: Alusuisse-Lonza Services Ltd.
    Inventors: Jean-Jaques Theler, Jean-Francois Jordan, Edmond Rey
  • Patent number: 5131453
    Abstract: A curved-mold continuous casting apparatus has a reciprocable mold with a curved casting passage and an arm which guides the mold for reciprocation. A secondary cooling unit is located downstream of the mold and is followed by a withdrawal-and-straightening unit. The apparatus further has a rigid, curved dummy bar, a piston-and-cylinder unit for moving the dummy bar between a storage position and a casting position, and a lever which is articulated to the dummy bar and guides the same. A support consisting of a bedplate with an upright stand holds the mold, guide arm, secondary cooling unit, withdrawal-and-straightening unit, dummy bar, piston-and-cylinder unit and lever in assembled condition and in alignment for casting. The support and the components carried thereby form a preassembled, transportable module which can be brought to a casting location or removed from such location.
    Type: Grant
    Filed: May 13, 1991
    Date of Patent: July 21, 1992
    Assignee: Concast Standard AG
    Inventors: Carlos Ros Navarro, Adrian Stilli, Adalbert Roehrig
  • Patent number: 5097888
    Abstract: Molten metal supply trough extends over station for continuously casting ingots, and has side channels each conducting the metal to a spout supplying an ingot. Simultaneously liftable gates control flow into the respective side channels.
    Type: Grant
    Filed: September 17, 1990
    Date of Patent: March 24, 1992
    Inventor: Robert B. Augustine, III
  • Patent number: 5056583
    Abstract: The continuous casting method uses a multistrand type continuous casting apparatus having a plurality of tundishes each provided with a plurality of nozzles for casting strands of at least two different alloys where at least one alloy is cast into two or more strands. The method transfers molten metal into the tundishes from separate ladles corresponding to each tundish, and one tundish feeds at least two water-cooled molds through the nozzles for continuous casting thereof. The number of strands cast for each of the different alloys is determined based on the time required for the preparation of each molten metal, an amount of charge and a casting speed of each molten metal, so as to improve the yield of expensive alloys and/or enhance the rate of operation of the apparatus.
    Type: Grant
    Filed: August 16, 1990
    Date of Patent: October 15, 1991
    Assignee: Daido Tokushuko Kabushiki Kaisha
    Inventors: Kiyoshi Morii, Shuzo Kumura, Shyzunori Hayakawa, Yoshio Inagaki
  • Patent number: 4986337
    Abstract: The invention relates to an apparatus for gravity feed casting with a large number of ingot molds of metal billets of multiple diameters, and including one or more rows of ingot molds. According to the invention, each ingot mold rests freely on a cooling cell and includes a feeder head which is fixed to a removable base plate which serves as a support for liquid metal feed ducts and removable housings. The base plate includes a plurality of openings communicating between a feed duct and at least one feeder head. A housing is provided on the base plate for each opening, with each housing including one aperture for each feeder head with which the opening corresponding to the housing communicates. The use of this apparatus makes it possible to change one or more ingot molds while reducing the risk of explosion.
    Type: Grant
    Filed: January 17, 1990
    Date of Patent: January 22, 1991
    Assignee: Aluminium Pechiney
    Inventor: Roger Soulier
  • Patent number: 4942919
    Abstract: An apparatus for the continuous casting of slabs has a mold and a slab support zone immediately following the mold. The mold is made up of four separate plates which are held together to define a mold cavity. A dividing wall can be removably mounted in the mold cavity in order to divide the same into a pair of parallel casting passages. Insertion of the dividing wall in the mold cavity makes it possible to simultaneously cast two relatively narrow slabs rather than a single wide slab. A partition designed to constitute an extension of the dividing wall is provided for the support zone and can be removably mounted in the same. Both the dividing wall and the partition are carried by a clamping mechanism which serves to clamp the dividing wall in the mold cavity.
    Type: Grant
    Filed: March 17, 1989
    Date of Patent: July 24, 1990
    Assignee: SMS Concast, Inc.
    Inventors: Michael Poran, Carl Langner, Shlomo Hury
  • Patent number: 4936375
    Abstract: In the embodiments described in the specification, continuous casting of ingots is carried out by transferring molten metal from a hearth to a mold through one or more flow channels which provide flow paths having a shallow angle to the horizontal and which terminates adjacent to the surface of the molten metal in the mold so that the vertical velocity component of the stream of molten metal flowing into the mold is minimal and the horizontal velocity component is low. In one form, the hearth surrounds the mold, providing four shallow-angle flow channels uniformly spaced around the periphery of the mold to avoid unilateral introduction of the molten material into the mold.
    Type: Grant
    Filed: July 13, 1989
    Date of Patent: June 26, 1990
    Assignee: Axel Johnson Metals, Inc.
    Inventor: Howard R. Harker
  • Patent number: 4821791
    Abstract: Melting furnace (1) for the production of strand-cast ingots (17, 18) in a protective gas atmosphere, has a charging apparatus (8) for feeding starting material (11) into a melting area (14). Within a melting chamber provided with a chamber floor (2d) and at least one energy source (4,5) there is situated a strand-casting mold (15) for the transformation of the melt to an ingot (17, 18) and underneath the strand-casting mold is disposed an offbearing apparatus (25) for offbearing the ingot, and an offbearing chamber enveloping the ingot and the offbearing apparatus. To solve the problem of operating such a melting furnace virtually continuously, the strand-casting mold (15) together with at least one additional strand-casting mold (16) is disposed in the chamber flow (2d) in such a manner that each of the strand-casting molds (15, 16) can be brought into the drop path of the melt by a preferably horizontal relative movement.
    Type: Grant
    Filed: February 19, 1988
    Date of Patent: April 18, 1989
    Assignee: Leybold Aktiengesellschaft
    Inventors: Hans Aichert, Herbert Stephan, Hermann Stumpp, Walter Dietrich, Michael Kiessling
  • Patent number: 4770226
    Abstract: Machine for the continuous casting of metal in the form of at least two separate strips, comprising a tundish (1) supplied with liquid metal, a bottomless mold (2) supplied continuously by the tundish (1), and an extraction and secondary cooling device (4). The liquid metal is poured into a distributor vessel (3) interposed between the tundish (1) and the mold (2), the vessel (3) placed on the mold (2), secured to the latter and equipped with means of maintaining the metal at the casting temperature.
    Type: Grant
    Filed: May 28, 1986
    Date of Patent: September 13, 1988
    Assignee: CLECIM
    Inventor: Jacques Barbe
  • Patent number: 4756749
    Abstract: A process of continuous casting of liquid steel from a tundish having a plurality of casting holes through which liquid steel moves downwardly into a plurality of strands. The liquid steel is discharged into the tundish from a ladle and moves in opposite directions toward two adjacent holes from at least one node comprising a point from which liquid steel moves in different directions toward different holes. The liquid steel is subjected to the heating effect of a heat source at at least one such node. The heat source is a transferred arc plasma torch.
    Type: Grant
    Filed: December 8, 1986
    Date of Patent: July 12, 1988
    Assignee: Centro Sviluppo Materiali S.p.A.
    Inventors: Alberto Praitoni, Pietro Tolve
  • Patent number: 4730660
    Abstract: The casting of several strands with a common puller unit is effected by a process which allows a high degree of operational reliability in its initial start-up phase. To accomplish this, slide gates or valves are throttled at a predetermined level provided in the lower area of a measuring section monitoring the levels in a group of molds and the strand-pulling drive is switched on and the slide gates of molds that have remained in the level below the level are closed no later than at a point when at least one of the actual levels in the molds is at another predetermined level which is below the optimum level. The rising of the levels in the molds may be controlled in accordance with preset rising curves.
    Type: Grant
    Filed: October 7, 1986
    Date of Patent: March 15, 1988
    Assignee: Metacon Aktiengesellschaft
    Inventors: Bernhard Tinnes, Heinz Kreuzberg
  • Patent number: 4714105
    Abstract: For multiple strand casting in the horizontal, a distributor vessel and several molds connected thereto, are arranged on a carriage being movable in direction of multiple parallel casting lines, and a plurality of stationary mounts are provided to be connected to bar-like lateral extensions of the molds by means of hydraulically operated plungers.
    Type: Grant
    Filed: April 6, 1987
    Date of Patent: December 22, 1987
    Assignee: Mannesmann AG
    Inventors: Franz Keutgen, Achim Kubon, Dieter Perings, Peter Stadler, Peter Voss-Spilker, Karl-Hermann Apel
  • Patent number: 4693299
    Abstract: In a continuous casting vessel, the gap between the feed column of molten metal and the mold inlet port is electromagnetically sealed by applying polyphase current on the edge of the inlet port to form therewith an intergral inductor effective to contain the metal in the pool about the meniscus at the base of the feed column in the sunk nozzle.
    Type: Grant
    Filed: June 5, 1986
    Date of Patent: September 15, 1987
    Assignee: Westinghouse Electric Corp.
    Inventors: Stephen B. Kuznetsov, Richard D. Nathenson
  • Patent number: 4637452
    Abstract: A mold apparatus for use in a continuous casting system, has a pair of parallel longer frames disposed to oppose each other and lined at their opposing surfaces, and a pair of shorter frames disposed between opposing ends of the longer frames and lined at their opposing surfaces, the longer and shorter frames in cooperation defining a rectangular mold cavity. A core frame is disposed between the longitudinal centers of the longer frames such as to divide the mold cavity into two sections. The core frame is split into two segments in the thicknesswise direction and has a substantially T-shaped configuration constituted by a vertical portion disposed between the longer frames and projecting downwardly beyond the lower ends of the longer frames and top wing portions projected laterally from the top end of the vertical portion and resting on the upper surfaces of the longer frames.
    Type: Grant
    Filed: January 29, 1986
    Date of Patent: January 20, 1987
    Assignee: Sumitomo Heavy Industries, Ltd.
    Inventor: Takashi Kawakami
  • Patent number: 4632173
    Abstract: Continuous casting facilities generally including a pair of moulds with a rail on each side thereof. Self-propelled tundish cars each carrying a tundish with a detachable immersion nozzle ride on the rails. The apparatus includes a truck running on the rail opposite the operator's side of the moulds connectable with one of the tundish cars and carrying an immersion nozzle exchanger. A connecting piece feeder, a powder feeder, and an immersion nozzle preheater are also mountable on the truck. Equipment interferences are eliminated by the specific structures and the operator's view of the moulds is not obstructed.
    Type: Grant
    Filed: February 28, 1985
    Date of Patent: December 30, 1986
    Assignees: Kawasaki Jukogyo Kabushiki Kaisha, Kawasaki Steel Corporation
    Inventors: Hideo Kaneko, Akira Murata, Eiji Inoue, Satoshi Satoh, Shinji Shiraishi, Shoichi Hiwasa
  • Patent number: 4619306
    Abstract: Multiple castings are cut into billets, combined in a transverse transport facility, separate into billets to be inspected or not, recombined and cooled. Transportation includes two transverse facilities and two longitudinal facilities, combined in various combinations. The transportation is carried out with only one, or no, pivoting action and cooling is provided for alongside one of the multiple transport paths with overall accommodation to subsequent transport of billets out of the system.
    Type: Grant
    Filed: October 11, 1983
    Date of Patent: October 28, 1986
    Assignee: Mannesmann Aktiengesellschaft
    Inventors: Hans Gruner, Helmuth Orsech, Hans Schrewe
  • Patent number: 4566523
    Abstract: An adjustable slide mold for twin casting installations includes two angular mold parts slidably engaging each other at two contact surfaces. At least one of the mold parts is formed with a projecting arm engaging the opposite mold part at an additional contact surface to divide the extrusion channel into a plurality of parallel extrusion passages. The mold parts are connected to an adjusting drive which uniformly displaces the mold parts relative to each other in opposite directions, so that the centers of respective extrusion passages remain stationary irrespective of the adjustment of their cross-sectional areas.
    Type: Grant
    Filed: June 3, 1983
    Date of Patent: January 28, 1986
    Assignee: Benteler-Werke AG Werk Neuhaus
    Inventor: Gert Vaubel
  • Patent number: 4566526
    Abstract: A method and apparatus for semi-horizontal continuous casting is disclosed employing an essentially horizontally extending continuous casting mold provided at its upper side or top wall with a mold inlet opening for the infeed of the metal to be cast, especially steel. At least one strand guide arrangement serves to guide at least one continuously cast strand which is fed laterally out of the continuous casting mold. The strand guide arrangement for each stand possesses two strand guide tracks or paths curved in opposite direction, the center of curvature of the first curved guide track or path, viewed in the direction of travel of the cast strand, being located below its related path of travel, and the center of curvature of the second curved guide track or path being located above its related path of travel.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: January 28, 1986
    Assignee: Concast, Incorporated
    Inventors: Herbert Fastert, Carl Langner
  • Patent number: 4562876
    Abstract: Additional intermediate narrow side walls are provided between narrow side walls at an apparatus for continuous casting of metals for casting as desired of metal bars with slab boom cross-section or of at least two metal bars of smaller cross-section, where a plate mold is employed, which is provided with a water tank supporting the narrow side walls and the wide side walls. In order to use best the cross-sectional area available for the forming of a slab bloom and in order to maintain acceptable and favorable viewing conditions immediately below the mold, the copper plates of the wide side walls between the end side narrow side walls are in each case subdivided by at least one recess in the longitudinal direction of the advancing metal bar in order to be able to cast at least two bars concurrently.
    Type: Grant
    Filed: June 8, 1983
    Date of Patent: January 7, 1986
    Assignee: Voest-Alpine Aktiengesellschaft
    Inventors: Reinhard Hargassner, Alois Scheinecker
  • Patent number: 4557315
    Abstract: A continuous casting mold arrangement for multiple continuous casting installations for producing casting strands of a substantially rectangular cross-section, has a plurality of continuous casting molds each including at least two mold parts displaceable relative to one another in a displacement direction transverse to a strand direction so as to change a strand cross-section, wherein the continuous casting molds are arranged one behind the other in the displacement direction and the respective mold parts of each two neighboring continuous casting molds are connected with one another.
    Type: Grant
    Filed: June 14, 1984
    Date of Patent: December 10, 1985
    Assignee: Benteler-Werke Aktiengesellschaft
    Inventors: Gert Vaubel, Heinz Beier
  • Patent number: 4546813
    Abstract: An insert is provided for a continuous caster mold which permits casting of plural strands in the mold. The insert has opposed wall faces, the spacing of which is independently adjustable at their upper and lower ends. The spacing of the upper and lower ends is made adjustable by separately actuable wedge assemblies, each of which includes a wedge and ramps having mateable angularly aligned surfaces. At least one surface in each pair of adjoining wedge and ramp surfaces has a convex curvature to permit adjustment of the angular alignment of the wall faces as required at the various spacing distances thereof. The wedges provide greater rigidity than screw-type adjustment, preventing undesirable variations in taper during casting. The invention includes a method of installing the insert in the mold and adjusting the spacing and angular alignment of the opposed wall faces of the insert.
    Type: Grant
    Filed: February 19, 1985
    Date of Patent: October 15, 1985
    Assignee: United States Steel Corporation
    Inventors: John A. Grove, John W. Grove