With Means To Discharge Molten Material Patents (Class 266/236)
  • Patent number: 10737319
    Abstract: A leakage of a molten metal is suppressed at the time of pouring.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: August 11, 2020
    Assignees: SINTOKOGIO, LTD., UNIVERSITY OF YAMNASHI
    Inventors: Yoshiyuki Noda, Yuta Sueki, Makio Suzuki, Kazuhiro Ota
  • Patent number: 10458708
    Abstract: A system and method for transferring molten metal from a vessel and into one or more of a ladle, ingot mold, launder, feed die cast machine or other structure is disclosed. The system includes at least a vessel for containing molten metal, an overflow (or dividing) wall, and a device or structure, such as a molten metal pump, for generating a stream of molten metal. The dividing wall divides the vessel into a first chamber and a second chamber, wherein part of the second chamber has a height H2. The device for generating a stream of molten metal, which is preferably a molten metal pump, is preferably positioned in the first chamber. When the device operates, it generates a stream of molten metal from the first chamber and into the second chamber. When the level of molten metal in the second chamber exceeds H2, molten metal flows out of the vessel and into another structure, such as into one or more ladles and/or one or more launders.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: October 29, 2019
    Assignee: Molten Metal Equipment Innovations, LLC
    Inventor: Paul V. Cooper
  • Patent number: 9982945
    Abstract: The invention relates to systems for transferring molten metal from one structure to another. Aspects of the invention include a transfer chamber constructed inside of or next to a vessel used to retain molten metal. The transfer chamber is in fluid communication with the vessel so molten metal from the vessel can enter the transfer chamber. A powered device, which may be inside of the transfer chamber, moves molten metal upward and out of the transfer chamber and preferably into a structure outside of the vessel, such as another vessel or a launder.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: May 29, 2018
    Assignee: Molten Metal Equipment Innovations, LLC
    Inventors: Paul V. Cooper, Vincent D. Fontana
  • Patent number: 9975177
    Abstract: To enable a ladle-tilting automatic pouring device to take less time for identification of the parameters and the device to pour highly precisely by sequentially updating pouring model parameters according to the pouring situation, the present pouring control method is based on a mathematical model of a process from input of control parameters to pouring of molten metal, the method including: identifying, using an optimization technique, a flow rate coefficient, a liquid density, and a pouring start angle that is a tilting angle of the pouring ladle when the flowing of the molten metal starts, which are the control parameters in the mathematical model, based on weight of liquid that flows out of the pouring ladle and tilting angle of the ladle that are measured during pouring, and a command signal that controls the tilting of the pouring ladle; and updating the control parameters to the identified control parameters.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: May 22, 2018
    Assignees: National University Corporation University of Yamanashi, Sintokogio, Ltd., National University Corporation Toyohashi University of Technology
    Inventors: Yoshiyuki Noda, Takaaki Tsuji, Makio Suzuki, Kazuhiko Terashima
  • Patent number: 9950364
    Abstract: [Problem to Be Solved] A pouring control method for controlling an automatic pouring device with a tilting-type ladle is provided. By the method, a lip of a pouring ladle approaches a sprue of a mold without striking any object located within the range of its movement. Also, by the method, the molten metal that runs out of the ladle can accurately fill the mold.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: April 24, 2018
    Assignees: SINTOKOGIO, LTD., NATIONAL UNIVERSITY CORPORATION TOYOHASHI UNIVERSITY OF TECHNOLOGY
    Inventors: Makio Suzuki, Kazuhiko Terashima, Atsushi Ito, Yoshiyuki Noda
  • Patent number: 9925587
    Abstract: The invention relates to systems for transferring molten metal from one structure to another. Aspects of the invention include a transfer chamber constructed inside of or next to a vessel used to retain molten metal. The transfer chamber is in fluid communication with the vessel so molten metal from the vessel can enter the transfer chamber. A powered device, which may be inside of the transfer chamber, moves molten metal upward and out of the transfer chamber and preferably into a structure outside of the vessel, such as another vessel or a launder.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: March 27, 2018
    Assignee: Molten Metal Equipment Innovations, LLC
    Inventors: Paul V. Cooper, Vincent D. Fontana
  • Patent number: 9862026
    Abstract: The invention relates to a method for forming a transfer chamber inside a cavity of, or next to, a vessel used to retain molten metal. A form is positioned in or next to the vessel, wherein the form defines the transfer chamber. Refractory material is placed into the form, and an opening is left beneath the transfer chamber wherein molten metal can flow into the opening. The transfer chamber is formed such that at least one chamber wall of the transfer chamber is part of at least one outer wall of the vessel, and at least one chamber wall is inside the vessel cavity and is not an outer wall of the vessel. The transfer chamber is formed with an uptake section, a top surface with an opening, and an outlet. The method may also include placing brackets into position and positioning a molten metal pump in the transfer chamber.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: January 9, 2018
    Assignee: Molten Metal Equipment Innovations, LLC
    Inventors: Paul V. Cooper, Vincent D. Fontana
  • Patent number: 9855600
    Abstract: The invention relates to systems for transferring molten metal from one structure to another. Aspects of the invention include a transfer chamber constructed inside of or next to a vessel used to retain molten metal. The transfer chamber is in fluid communication with the vessel so molten metal from the vessel can enter the transfer chamber. A powered device, which may be inside of the transfer chamber, moves molten metal upward and out of the transfer chamber and preferably into a structure outside of the vessel, such as another vessel or a launder.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: January 2, 2018
    Assignee: Molten Metal Equipment Innovations, LLC
    Inventors: Paul V. Cooper, Vincent D. Fontana
  • Patent number: 9849508
    Abstract: A ladle bottom being part of a metallurgical ladle for treating a metal melt as well as a corresponding metallurgical ladle.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: December 26, 2017
    Assignee: REFRACTORY INTELLECTUAL PROPERTY GMBH & CO. KG
    Inventors: Sarah Kohler, Alexander Maranitsch, Kerry Servos
  • Patent number: 9849509
    Abstract: A ladle bottom being part of a metallurgical ladle for treating a metal melt as well as a corresponding metallurgical ladle.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: December 26, 2017
    Assignee: REFRACTORY INTELLECTUAL PROPERTY GMBH & CO. KG
    Inventors: Sarah Kohler, Alexander Maranitsch, Bernhard Spiess
  • Patent number: 9636744
    Abstract: A method of pouring molten metal from a molten metal holding and pouring box with a rectangular-shaped upper section and a pyramidal-shaped lower section provides a relatively constant flow of molten metal being poured from the box through each of two bottom nozzles into two separate foundry molds at the same time.
    Type: Grant
    Filed: June 26, 2016
    Date of Patent: May 2, 2017
    Assignee: INDUCTOTHERM CORP.
    Inventors: Satyen N. Prabhu, William R. Pflug, Marcelo Albano Paiva, Graham Cooper
  • Patent number: 9581388
    Abstract: A system for removing molten metal from a vessel is disclosed. The system includes a pump and a refractory casing that houses the pump. As the pump operates it moves molten metal upward through an uptake section of the casing until it reaches an outlet wherein it exits the vessel. The outlet may be attached to a launder. Another system uses a wall to divide a cavity of the chamber into two portions. The wall has an opening and a pump pumps molten metal from a first portion into a second portion until the level in the second portion reaches an outlet and exits the vessel.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: February 28, 2017
    Assignee: Molten Metal Equipment Innovations, LLC
    Inventor: Paul V. Cooper
  • Patent number: 9174277
    Abstract: A ladle shroud for casting liquid metal contains a canal along which the metal can pass, extending essentially along an axis, and a metallic jacket positioned at an end portion of the shroud that corresponds to an end of the canal, characterized in that the jacket comprises at least a belt of a thickness greater than or equal to 10 mm, preferably of 14 mm, and in that the shroud comprises means of attachment to driving means, the attachment means being formed on the jacket, notably on the belt thereof.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: November 3, 2015
    Assignee: Vesuvius Group S.A.
    Inventor: Mariano Collura
  • Patent number: 9168586
    Abstract: Stopper rod having an elongate body with an inlet at an upper first end and an outlet at a lower second end. The second end of the body defines a nose for insertion into a tundish outlet. A continuous axial bore extends through the body from the inlet in the first end to the outlet in the second end. A restrictor having an inlet, an outlet and a passageway therebetween is positioned in the axial bore such that the inlet of the restrictor is closer to the first end than the second end. A gas supply conduit is arranged to supply gas into the axial bore above the inlet of the restrictor.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: October 27, 2015
    Assignee: REFRACTORY INTELLECTUAL PROPERTY GMBH & CO KG
    Inventors: Gerald Nitzl, Norman Edward Rogers
  • Patent number: 9039958
    Abstract: A refractory well (16) for melting scrap metal pieces into a molten metal bath, comprises an inlet (18) for introducing metal into said well, the inlet being located so as to cause a circular flow of molten metal in said well, an outlet (19) for the flow of metal from said well and an electromagnetic pump (22) located beneath the refractory well for pumping said molten metal from said well through said outlet.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: May 26, 2015
    Inventors: Rifat A. Chalabi, Ophneil Henry Perry
  • Patent number: 9011117
    Abstract: A pump for pumping molten metal and delivering flux includes a refractory base that can be submerged in molten metal including an impeller chamber, an inlet and an outlet. A refractory shaft sleeve has upper and lower end portions and is fastened to the base at the lower end portion. A motor is disposed near the upper end portion of the shaft sleeve. A refractory shaft extends in the shaft sleeve and is connected to the motor near the upper end portion of the shaft sleeve. A refractory impeller is connected to the shaft and is rotatable in the impeller chamber. A flux feeding device feeds flux into the shaft sleeve. Also featured is a method for delivering flux in the shaft sleeve of the pump and a method for cleaning flux accretions in the shaft sleeve.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: April 21, 2015
    Inventor: Bruno H. Thut
  • Publication number: 20150102536
    Abstract: A metal scrap submergence device having an open top chamber including side and base walls of a heat resistant material. An inlet is included in a side or base wall of the chamber for receiving molten metal. An outlet is included in the base of the chamber. A ramp extends from the side wall of the chamber to an inner column defining the outlet. The ramp includes a first edge adjacent the side wall and second interior edge adjacent the inner column. The working surface of the ramp between the first and second edges is concave. The inner column includes an end wall disposed opposite the chamber base, the end wall includes rounded inner and outer edges.
    Type: Application
    Filed: April 22, 2014
    Publication date: April 16, 2015
    Applicant: PYROTEK, INC.
    Inventors: Chris T. Vild, Robert L. Grodeck
  • Patent number: 9005518
    Abstract: A refractory bottom lining for lining the bottom of a metallurgical vessel. The refractory bottom includes a stepped portion and an impact portion. The impact portion is formed of a first refractory material. The stepped portion is formed of a second refractory material and is disposed around the impact portion. The stepped portion includes an upper surface that has a plurality of discrete surface sections. The plurality of discrete surface sections includes an uppermost surface section, at least two intermediate surface sections and a lowermost surface section. Each surface section has a different elevation such that the uppermost surface section has a highest elevation and the lowermost surface section has a lowest elevation. The uppermost surface section, the at least two intermediate surface sections and the lowermost surface section define a continuously downward stepped path from the uppermost surface section to the lowermost surface section.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: April 14, 2015
    Assignee: North American Refractories Co.
    Inventors: Ronald Barrett, Donald Abrino
  • Publication number: 20150069679
    Abstract: A metal scrap submergence device comprising an open top chamber including walls of a heat resistant material, an inlet positioned in a side wall of the chamber, an outlet positioned in the base of said chamber, and a ramp adjacent said side wall of the chamber. The side wall further includes a feature affecting molten metal flow. The feature can include, for example, a baffle, a vane, a passage, a diverging or converging shape and combinations thereof. Similarly, the molten metal flow can be affected by slanting the ramp inwardly or outwardly.
    Type: Application
    Filed: April 16, 2013
    Publication date: March 12, 2015
    Applicant: PYROTEK, INC.
    Inventors: Richard S. Henderson, Jason Tetkoskie, Chris T. Vild
  • Patent number: 8973791
    Abstract: A frame, for a device for holding and replacing plates for transferring molten metal contained in a metallurgical vessel having a casting channel, defines a housing for receiving and holding a plate, when the device is assembled, in the operating position in the vicinity of the casting channel of the metallurgical vessel. The frame is arranged to enable the introduction of the plate into the housing, and the extraction of the plate from the housing, by translation along a plate insertion direction. The housing is formed so as to have an overall planar symmetry in relation to a central longitudinal plane parallel with the plate insertion direction. The frame comprises slots for receiving thrusters intended, when the device is assembled, to apply a force, in the direction of the metallurgical vessel, on a plate inserted in the housing.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: March 10, 2015
    Assignee: Vesuvius Group S.A.
    Inventors: Mariano Collura, Fabrice Sibiet
  • Patent number: 8960508
    Abstract: A sliding nozzle device automatically performs a series of operations of loading and unloading pressure between plates and opening and closing a slide frame; maintaining the pressure without additional operations; and operates at full stroke during molten steel flow control. An auxiliary plate-exchanging mechanism includes slide axes moving in the same direction as a hydraulic cylinder operates, and an arm having a proximal end placed around the slide axis. The plate-exchanging mechanism is fixed on an upside frame. A first engagement pin mounted on the proximal end of the arm is inserted in a first engagement groove in a first engagement member engaging with the slide axis, and second engagement pins mounted on bearings are inserted in second engagement grooves in the slide axes. With movement of the slide axes the engagement pins respectively move in the engagement grooves, thereby rotating the slide axes and the arm.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: February 24, 2015
    Assignee: Krosaki Harima Corporation
    Inventors: Junichi Funato, Hiroyuki Tofuku, Yasuo Kawano, Shinjiro Saito
  • Patent number: 8926893
    Abstract: A manipulation device for a shroud for casting liquid metal comprises holding means for the shroud, downstream of a metal flow control valve, this valve being able to assume an open configuration and a closed configuration under the action of drive means. The manipulation device comprises fixing means affixed to the drive means for the valve. A ladle shroud for the flow of liquid metal from a casting ladle to a metal tundish has a longitudinal axis and comprises a shroud gripping head at one end. The gripping head is fusiform.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: January 6, 2015
    Assignee: Vesuvius Group S.A.
    Inventors: Vincent Boisdequin, Mariano Collura, Jeffrey Butts
  • Patent number: 8916794
    Abstract: A metal jet apparatus comprises a discharge nozzle 31 for jetting molten metal 20, and a gas passage 33 for supplying inert gas to a peripheral portion of a discharge port 32 of the discharge nozzle 31. The discharge port 32 of the discharge nozzle 31 and an outlet of a gas passage 33 are provided with a nozzle cover 34. The nozzle cover 34 includes a space 35 which is in communication with the discharge port 32 and the outlet of the gas passage 33, and which opens downward. A ring-like projection 36 is disposed around the opening. When the molten metal 20 is jetted from the discharge port 32 into the space 35, the inert gas is supplied to the space 35, thereby preventing the molten metal 20 from being oxidized, and it is possible to prevent the nozzle of the discharge port 32 from being clogged, and to form the molten metal 20 into a spherical shape.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: December 23, 2014
    Assignees: Japan Science and Technology Agency
    Inventors: Katsumi Yamaguchi, Hiroshi Nakamura
  • Patent number: 8905274
    Abstract: A pouring nozzle includes a generally rectangular shaped plate and a tube extending from the bottom surface of the plate. The nozzle includes a pouring channel emerging close to the downstream end of the tube through outlets formed in the lateral walls of the tube. The outlets are disposed symmetrically on either side of the axis of the tube. The axis of the outlets is substantially parallel to a pair of sides of the plate. The orifice is oblong and has a major axis and a minor axis. The minor axis of the orifice is parallel to the axis of the outlets. The pouring nozzle may be assembled with an inner nozzle. This nozzle and its assembly with an inner nozzle may be used for the continuous casting of steel from a tundish towards a continuous casting mould.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: December 9, 2014
    Assignee: Vesuvius Group S.A.
    Inventor: Fabrice Sibiet
  • Patent number: 8906290
    Abstract: A container for molten metal has at least one opening in which a refractory nozzle brick is mounted. A refractory purge plug or a refractory sleeve defining an outlet opening is inserted in the nozzle brick opening. A defined gap is formed between the nozzle brick opening and the purge plug or the sleeve and is filled with a refractory mass, this mass consisting of a material which can be easily bored or milled out of the mass for the purpose of replacing the purge plug or the sleeve. In this manner, laborious cleaning steps can be avoided and the nozzle brick no longer risks being damaged.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: December 9, 2014
    Assignee: Stopinc Aktiengesellschaft
    Inventors: Michael Klikovich, Leopold Kneis
  • Patent number: 8894922
    Abstract: The invention relates to a fireproof ceramic impact absorber.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: November 25, 2014
    Assignee: Refractory Intellectual Property GmbH & Co. KG
    Inventors: Robert Sorger, Wilhelm Janko, Bernd Trummer, Gernot Hackl
  • Patent number: 8883071
    Abstract: An exemplary embodiment of the invention provides a molten metal containment structure, including a vessel having an internal volume for containing molten metal and an open upper end. The structure further includes a cover for the vessel having an underside facing the internal volume, the cover being movable between a closed position, covering the open upper end of the vessel with the underside of the cover, and an open position in which the cover is remote from the open upper end of the vessel to allow access to the internal volume from one side of the structure. The cover is attached to at least one lifting arm (preferably two or more) and at least on rotation control arm (preferably two or more). The lifting arm(s) operates to guide the cover from the open position to the closed position, and vice versa.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: November 11, 2014
    Assignee: Novelis Inc.
    Inventor: Eric W. Reeves
  • Publication number: 20140265068
    Abstract: Aspects of the invention include a transfer chamber constructed inside of or next to a vessel used to retain and degas molten metal. The transfer chamber is in fluid communication with the vessel so molten metal from the vessel is pulled through the vessel by the pump as it is degassed. This helps maintain a generally constant flow of molten metal through the degassing vessel. Other aspects relate to a system and method for efficiently performing maintenance on components positioned in a vessel.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventor: Paul V. Cooper
  • Publication number: 20140238198
    Abstract: Disclosed is an exemplary method of purifying lead which includes the steps of placing lead and a fluoride salt blend in a container; forming a first fluid of molten lead at a first temperature; forming a second fluid of the molten fluoride salt blend at a second temperature higher than the first temperature; mixing the first fluid and the second fluid together; separating the two fluids; solidifying the molten fluoride salt blend at a temperature above a melting point of the lead; and removing the molten lead from the container. In certain exemplary methods the molten lead is removed from the container by decanting. In still other exemplary methods the molten salt blend is a Lewis base fluoride eutectic salt blend, and in yet other exemplary methods the molten salt blend contains sodium fluoride, lithium fluoride, and potassium fluoride.
    Type: Application
    Filed: February 18, 2014
    Publication date: August 28, 2014
    Applicant: United States Department of Energy
    Inventor: Harmon M. Tunison
  • Publication number: 20140232048
    Abstract: In accordance with one aspect of an exemplary embodiment, a furnace including a charge well is provided. The charge well comprises an open top chamber including side and base walls of a heat resistant material. An inlet is provided in a side wall of the chamber for receiving molten metal. A ramp is provided adjacent the side wall and an inner wall forms a central cavity. The ramp is disposed between the inner wall and the side wall. The ramp is generally inclined from an intersection with the base wall to adjacent a top surface of the inner wall. The cavity is in fluid communication with an outlet. A passage in the inner wall provides fluid communication between the inlet and the cavity. The inlet and an outlet each receives a conduit and at least one of the conduits can include an elbow joint.
    Type: Application
    Filed: July 9, 2012
    Publication date: August 21, 2014
    Applicant: PYROTEK, INC.
    Inventors: Roger Howitt, Jim Grayson, Mark Bolton, Paul Bosworth
  • Publication number: 20140216679
    Abstract: A casting system and method. The casting system can include an energy source and a hearth, which can have a tapered cavity. The tapered cavity can have a first end portion and a second end portion, and the tapered cavity can narrow between the first and second end portions. Further, the tapered cavity can have an inlet at the first end portion that defines an inlet capacity, and one or more outlets at the second end portion that define an outlet capacity. Where the cavity has a single outlet, the outlet capacity can be less than the inlet capacity. Where the cavity has multiple outlets, the combined outlet capacity can match the inlet capacity. Further, the cross-sectional area of the tapered cavity near the inlet can be similar to the cross-sectional area of the inlet.
    Type: Application
    Filed: February 5, 2013
    Publication date: August 7, 2014
    Applicant: ATI PROPERTIES, INC.
    Inventors: Evan H. Copland, Matthew J. Arnold, Ramesh S. Minisandram
  • Patent number: 8795582
    Abstract: The invention relates to a device for distributing a material in a molten state, said device comprising a swinging chute (16) supported so as to be capable of swinging about a substantially horizontal swinging axis (25), and a driving group (40). The latter comprises gear motor group (42), a drum winch (44) driven by the gear motor group (42), and at least one cable segment (50, 50?) that can be both wound on or unwound from said drum. One end of the cable segment (46, 50, 50?) is attached to the swinging chute (16) at a distance L from the swinging axis (25) thereof so as to apply a swinging momentum to said swinging chute (16).
    Type: Grant
    Filed: November 3, 2009
    Date of Patent: August 5, 2014
    Assignee: TMT-Tapping Measuring Technology SARL
    Inventors: Giovanni Cimenti, Claude Bodeving, Claude Meisch
  • Patent number: 8783528
    Abstract: A slide gate includes first and second frame members, first and second nozzles, first and second plates, a biasing member, a hinge and an actuator. The first plate is connected to the first frame member. A passageway in the first nozzle is aligned with an opening in the first plate. The second plate is connected to the second frame member. A passageway in the second nozzle is aligned with an opening in the second plate. The biasing member includes a channel having a shaft extending through a spring located in the first frame member. The spring biases a retainer and the channel toward the first frame member. The second frame member includes a portion that rides in the channel. The actuator moves the second frame member along the channel to align the nozzle passageways to allow material to flow through the slide gate.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: July 22, 2014
    Assignee: J.W. Hicks, Inc.
    Inventors: James R. Hicks, Matthew C. Smith
  • Patent number: 8778258
    Abstract: A tundish nozzle is used in a device for exchanging tundish nozzles juxtaposed at a bottom of a tundish. The device includes a pair of first arms pressing and supporting a first lower nozzle located at an undersurface of a first upper nozzle, the first upper nozzle being placed at the bottom of the tundish. The device includes a pair of second arms pressing and supporting a second lower nozzle located at an undersurface of a second upper nozzle, the second upper nozzle being placed at the bottom of the tundish and next to the first upper nozzle. The pair of first arms and the pair of second arms are adjoined to each other, the pairs at least partly overlapping. The tundish nozzle includes a zirconia based nozzle inserted into an alumina based refractory, and is one of the first and second lower and upper nozzles.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: July 15, 2014
    Assignee: Krosaki Harima Corporation
    Inventors: Hiroyuki Tofuku, Takashi Kayashima, Kiyonori Hara
  • Patent number: 8771587
    Abstract: A copper anode furnace includes a furnace drum which can be pivoted about a horizontal axis and in which copper melt is refined into anode copper by fire refining. The furnace drum is provided with a spout for pouring out the refined copper. A sliding closure is arranged on the spout of the furnace drum. The sliding closure includes at least one stationary, fireproof closing plate and a fireproof sliding plate which can be displaced relative to the closing plate. Through the displacement of the sliding plate, the outflow out the furnace drum can be regulated or closed and therefore the outflow amount of the copper can be controlled. A drawing of slag into the casting, which reduces the anode quality, can be prevented using the sliding closure.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: July 8, 2014
    Assignee: Stopinc Aktiengesellschaft
    Inventors: Heinrich Amsler, Kurt Ackermann, Klaus Gamweger, Bernhard Handle
  • Patent number: 8771789
    Abstract: Methods are disclosed for producing melt supply pipes. In one illustrative implementation, there is provided a method for producing a melt supply pipe, composed of an inner ceramic pipe and an outer steel pipe fitted to the inner pipe, the melt supply pipe directed to connecting a melting furnace and a plunger sleeve of a die casting machine. Moreover, the method may include forming a Ni alloy layer over the inner circumferential surface of the outer steel pipe, burying the outer pipe in and bonding the surface of the Ni alloy layer to TiC particles, and fitting the inner ceramic pipe into the outer pipe with the TiC particles bonded to the inner circumferential surface.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: July 8, 2014
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Jun Masuda, Ryosuke Fujimoto
  • Patent number: 8758673
    Abstract: A portable thermal oven includes a metal frame and a plurality of terracotta panels disposed inside of the frame and defining an enclosed chamber having a front panel, a rear panel, two opposite side panels, a top panel and a bottom panel. The furnace also includes a terracotta door hingedly disposed in the front panel and including a handle on one side thereof for opening and closing the door. A plurality of gas manifolds and a plurality of gas burners are disposed on each of the two opposite sides of the chamber and a ventilation hatch is disposed in the top panel for exhausting fumes and excess heat. A first and a second gas cylinder and pipes for connecting the gas cylinders to the manifolds for supplying gas and/or air to the manifolds are also provided.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: June 24, 2014
    Inventor: Mohammed Marzouq Khalaf Al-Mutairi
  • Patent number: 8746516
    Abstract: An impact pad, for use in a T-shaped tundish, comprises a base having an impact surface and an outer side wall extending upwardly therefrom and defining an interior space having an upper opening for receiving a stream of molten metal, the interior space being divided into two regions by a separating wall provided with at least one passageway for the molten metal stream. The separating wall is at least three times higher than the outer side wall and is inclined with respect to the vertical. This impact pad increases the homogeneity of the molten steel cast from the different outlets of the T-shaped tundish and provides equal or relatively similar residence times of the molten steel discharged through the different outlets of the tundish. This impact pad also permits a fast transition of the steel quality at ladle change while retaining the advantages of conventional impact pads.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: June 10, 2014
    Assignee: Vesuvius Crucible Company
    Inventors: Thomas Wagner, Karsten Langer
  • Patent number: 8741213
    Abstract: A stack of copper plates is placed in a melting chamber having a closed roof of refractory material. The stack is placed in a tilted orientation leaning against a side wall of the melting chamber, with lower edges of the copper plates resting on an inclined hearth surface. A door to the melting chamber is closed to block the infiltration of oxygen. A burner is fired into the melting chamber to heat the closed roof of refractory material, and the stack of copper plates is melted under the influence of combustion products from the burner and heat radiated from the closed roof. Molten copper is drained downward from the bottom edge of the inclined hearth surface to avoid immersing the copper plates in a molten bath.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: June 3, 2014
    Assignee: Fives North American Combustion, Inc.
    Inventors: John R. Hugens, Jr., Mike Gorczewski, Ronald Ian Carmichael
  • Patent number: 8740024
    Abstract: A closing plate for a sliding closure on the spout of a receptacle for molten metal, especially of a converter, includes an elongate refractory plate and a sheet metal jacket surrounding the same. The refractory plate has a sliding surface which can be braced with a sliding surface of a refractory closure plate interacting therewith or with a sliding surface of a refractory head part. The refractory plate has at least one tapering section which forms an angle with the sliding surface on at least one side delimiting the sliding surface, each tapering section being associated with a section of the refractory plate that projects beyond the sheet metal jacket. The closing plate reduces the risk of damage to the front faces of the refractory parts reduced during bracing of the parts with each other and/or during a relative adjustment of the refractory parts that are braced with each other.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: June 3, 2014
    Assignee: Stopinc Aktiengesellschaft
    Inventors: Benno Steiner, Werner Keller, Urs Truttmann
  • Publication number: 20140117596
    Abstract: A vessel used for containing molten metal, e.g. a trough section for conveying molten metal from one location to another. In some embodiments, the vessel employs refractory liner units of different thermal conductivity to maximize heat penetration into the molten metal from heaters in the gap, but to minimize heat loss at the inlet and outlet of the vessel where the end units contact the housing.
    Type: Application
    Filed: January 8, 2014
    Publication date: May 1, 2014
    Applicant: NOVELIS INC.
    Inventors: ERIC W. REEVES, JAMES BOORMAN, ROBERT BRUCE WAGSTAFF, RANDAL GUY WOMACK
  • Patent number: 8708204
    Abstract: In continuous casting of steel, the flow out of the tap hole (11) in the tundish (10) is controlled by a stopper rod that is rotatable so as to give the molten steel a swirling motion. This rotation reduces the risk of deposits in the tap hole and in the discharge tube (12). A non-rotatable sleeve around the stopper rod (16) extends through the slag layer (18) and into the molten steel (17). Protective gas is supplied to the gap between the stopper rod (16) and the sleeve (30) to prevent air from being drawn through the gap and into the molten steel.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: April 29, 2014
    Assignee: Swerea Mefos AB
    Inventors: Ralph Nystrom, Ulf Sjostrom
  • Patent number: 8701948
    Abstract: A stopper rod positioning and control apparatus is provided for controlling the flow of a molten metal out of a bottom nozzle in a metal reservoir. The stopper rod can be aligned with the nozzle's opening by selectively rotating a pair of roller (ring) bearings that are centerline offset from each other along a first axis around which one end of an extended structural arm can pivot where the opposing end of the arm retains the stopper rod along a second axis parallel to the first axis. When the appropriate relative positions of the pair of roller bearings are located for a nozzle-centered stopper rod, the second axial position of the stopper rod is fixed by retaining the appropriate relative positions with a brake mechanism.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: April 22, 2014
    Assignee: Inductotherm Corp.
    Inventors: Marcelo Albano Paiva, Dale William Vetter, William Robert Pflug
  • Publication number: 20140090796
    Abstract: Described herein is a method of melting a bulk metallic glass (BMG) feedstock, comprising: feeding the BMG feedstock into a crucible; melting a first portion of the BMG feedstock to form molten BMG, while maintaining a second portion of the BMG feedstock solid; wherein the second portion and the crucible hold the molten BMG.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 3, 2014
    Inventors: Theodore A. WANIUK, Joseph STEVICK, Sean O'KEEFFE, Dermot J. STRATTON, Joseph C. POOLE, Matthew S. SCOTT, Christopher D. PREST
  • Publication number: 20140090797
    Abstract: Described herein is a device comprising a crucible, a movable base and a heater; wherein the heater is configured to melt BMG to form molten BMG feedstock in the crucible; wherein the movable base configured to slide along a length of the crucible; wherein the movable base and the crucible are configured to hold the molten BMG feedstock.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 3, 2014
    Inventors: Theodore A. Waniuk, Joseph Stevick, Sean O'Keeffe, Dermot J. Stratton, Joseph C. Poole, Matthew S. Scott, Christopher D. Prest
  • Publication number: 20140054832
    Abstract: An aluminum-based material melting apparatus includes: a furnace; a melt-discharging conduit having an inner portion disposed in the furnace; a driving mechanism mounted on the furnace; a transmission mechanism connected to the driving mechanism; and a scoop member suspended in the furnace and driven by the driving mechanism through the transmission mechanism so as to be movable in the furnace between upper and lower positions and so as to be rotatable relative to the furnace about an axis between scooping and pouring positions.
    Type: Application
    Filed: January 29, 2013
    Publication date: February 27, 2014
    Inventor: CHAI-LONG YU
  • Publication number: 20140033866
    Abstract: A method for treating spheroidal graphite iron includes the step: pouring molten spheroidal graphite iron into a pouring electrical furnace (1); covering the molten spheroidal graphite iron (5) with alkali slag (6) which is melted at high temperature and rich in alkali earth metal ion, rare earth metal ion, or mixture of them; connecting the molten spheroidal graphite iron (5) with the negative pole of the direct current source by one pole (7); connecting the alkali slag (6) with the positive pole of the direct current source by another pole (4), treating the molten spheroidal graphite iron (5) with the alkali slag (6) which is used as electrolyte. The method can prevent the spheroidized fading velocity of the spheroidal graphite iron. The pouring electrical furnace can be used for treating the molten spheroidal graphite iron.
    Type: Application
    Filed: October 7, 2013
    Publication date: February 6, 2014
    Inventors: Yuxin WANG, Juren LIU
  • Publication number: 20130340967
    Abstract: A feed system for introducing semi-solid metal alloy to a die casting machine includes a first chamber for receiving a metal alloy billet and for preparing the semi-solid metal alloy billet. The first chamber includes heaters and a cutting system. The metal alloy billet is heated by the heaters and cut by the cutting system into predetermined lengths to form semi-solid metal alloy portions. The feed system also includes a second chamber connected to the first chamber by a passage to receive the semi-solid metal alloy portions. The second chamber includes a door that opens and closes the passage and a plunger system that introduces the semi-solid metal portions to a die cast machine. An atmosphere control system is in fluid communication with the first chamber and the second chamber. The atmosphere control system removes oxygen from the feed system. A method using the feed system is also provided.
    Type: Application
    Filed: June 26, 2012
    Publication date: December 26, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Wenying Yang, Qigui Wang
  • Patent number: 8613884
    Abstract: An insert and system for removing molten metal from a vessel is disclosed. The insert defines an enclosed cavity, and includes a first opening in its side through which molten metal can enter the cavity, and a second opening at its top through which molten metal can exit the cavity. A trough at the top of the insert directs molten metal exiting the second opening out of the vessel. The system includes the insert and a molten metal pump that forces molten metal through the first opening and into the cavity.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: December 24, 2013
    Inventor: Paul V. Cooper
  • Publication number: 20130330228
    Abstract: An apparatus for producing a semi-solidified metal has a heating device which heats a metal material, a vessel, a cooling device which cools the vessel, and a pouring device which pours the metal material into the vessel. The vessel has a hollow member which configures a wall of the vessel and is opened at both of the upper and lower ends and into which the metal material is poured from the upper opening, and a bottom member which closes the lower opening of the hollow member and configures the bottom of the vessel. The cooling speed of the metal material by the bottom member is faster than the cooling speed of the metal material by the hollow member.
    Type: Application
    Filed: June 12, 2013
    Publication date: December 12, 2013
    Inventors: Satoru AIDA, Satoshi TOMIOKA, Koei NAKATA