Having Casting Material Cooling Means Patents (Class 164/443)
  • Patent number: 4706735
    Abstract: An electromagnetic stirring apparatus arranged at an arbitrary position from just beneath a mold to a secondary cooling zone in a continuous caster, so as to close about a cast strand containing an unsolidified molten metal therein. The apparatus is fundmentally constituted such that guide plates each having a cooling function are detachably attached at their back face to corresponding cores each constituting an electromagnetic coil so that the coil can approach as near as possible to the cast strand.
    Type: Grant
    Filed: January 29, 1987
    Date of Patent: November 17, 1987
    Assignee: Kawasaki Steel Corporation
    Inventors: Hisakazu Mizota, Shinji Kojima
  • Patent number: 4706734
    Abstract: A continuous casting apparatus comprising a graphite die having an opening therethrough which has an elongated cross section and a cooler body surrounding and supporting the die. The cooler body or graphite die has a plurality of axially extending coolant passages in transversely spaced relation along each of the long sides of the elongated opening. Each coolant passage has an inlet end and an outlet end and the length of the coolant passages decreases progressively from the passage nearest the center to the end of the elongated openings.
    Type: Grant
    Filed: June 18, 1986
    Date of Patent: November 17, 1987
    Inventor: Gus Sevastakis
  • Patent number: 4690200
    Abstract: An induction stirrer/mold assembly for use on a continuous casting machine, which includes a coil assembly having an outer frame securely fastened to a vibrating table of the casting machine and accommodating induction stirring coils in the outer frame; and a continuous casting mold assembly detachably mounted on the outer frame of the coil assembly, the four sides of the mold being constituted by separable mold walls each having a copper facing plate securely joined to a reinforcing back-up plate.
    Type: Grant
    Filed: January 30, 1985
    Date of Patent: September 1, 1987
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventor: Hiroshi Okamoto
  • Patent number: 4679611
    Abstract: A belt type continuous casting machine having a container for accommodating molten steel therein, a nozzle for supplying the molten steel from the container, a belt mold having a pair of metal belts and a pair of side members, and a cooling pad positioned adjacent to the back surface of the metal belt for forming a gap acting as a water film portion therebetween. The cooling pad is provided with a plurality of inlet ports and outlet ports for enabling a flow of cooling water into the water film portion therethrough. The diameters of these ports and the vertical distance between the inlet port and the adjacent outlet port are varied for controlling fluid pressure in the water film portion in correspondence with an external load acting on the metal belt. By securing a desired water film thickness deformation of the belt mold is prevented, and a flat cast slab with a good surface is obtained.
    Type: Grant
    Filed: November 29, 1985
    Date of Patent: July 14, 1987
    Assignees: Hitachi, Ltd., Kawasaki Steel Corporation
    Inventors: Takashi Yoshida, Tomoaki Kimura, Tadashi Nishino, Sadayuki Saito
  • Patent number: 4671917
    Abstract: Molten oxide of grinding material, refractory material, etc., being poured into a circular casting space formed between coaxially arranged inner and outer cylinders and cooled by the water contained in the inner cylinder. Thus, the molten oxide is cooled radially from the center of the inner cylinder and solidified. The outer cylinder includes two segments which separate from each other for facilitating putting the molten oxide into the casting space and taking the resulting solidified product out of the casting space.
    Type: Grant
    Filed: July 30, 1985
    Date of Patent: June 9, 1987
    Assignee: Japan Abrasive Co., Ltd.
    Inventors: Akira Iwata, Masahiro Tamamaki, Genji Tanaka, Masaaki Taniguchi, Kouji Tsuda
  • Patent number: 4671340
    Abstract: This invention relates to a roller for continuous casting between rollers, with circulation of cooling fluid. In this roller, comprising a cylindrical body surrounded by an envelope, the cooling fluid circulation channels disposed circumferentially between the body and the envelope, are constituted by groups of grooves on the inner surface of the envelope extending over arcs of circumference, and organizing the circulation in distinct angular sectors corresponding to each group. Axial throats are provided between the body and the envelope at the ends of each sector, and into which open out, on the one hand, radial fluid admission and return pipes passing through the body, and, on the other hand, the grooves of a group by one of their ends, the throats being in a number double that of the angular sectors.
    Type: Grant
    Filed: September 12, 1986
    Date of Patent: June 9, 1987
    Assignee: Institut de Recherches de la Siderurgie Francaise
    Inventors: Michel Larrecq, Louis Vedda
  • Patent number: 4669527
    Abstract: A roller (R) for the continuous casting of metallic flat bars or plates (S), having a high solidification factor, a satisfactory life of the cylindrical cooling mantle (4) and ease of substituting same. The mantle (4) is formed by a thin metallic, normally copper cylinder, cooled by water flowing at high speed through conduits (41) formed beneath the internal surface of the mantle, a valve structure (12-11) being provided for feeding each conduit independently from the others. The mantle (4) is sustained by a central hub (1,2), and is kept firmly into shape by filling with a suitable material, as for instance a mixture of sand and cement (303), the annular chamber (3) between the mantle (4) and the central hub (1,2). The water cooling of the mantle may be only limited to the contact zone between liquid metal and mantle (4), or may be extended to the whole surface of the mantle.
    Type: Grant
    Filed: March 28, 1985
    Date of Patent: June 2, 1987
    Inventor: Enzo Colombo
  • Patent number: 4669529
    Abstract: A continuous casting chill mold, for the continuous casting of metals, particularly of steel, comprises a water-cooled interior section and an outer jacket section which avoids the problems associated with the machining of the cooling channels and at the same time reduces wastage, in that the interior section is produced by chipless (i.e. non-machining) production methods as a thin-walled sleeve having a dense microstructure, the interior section is surrounded by a coiled cooling pipe which, together with the interior section, is positively materially bonded to the outer jacket section consisting of copper applied by casting techniques. Neither in the cooling zone nor in the wall region of the mold cavity is there any risk of cutting into pores or pipes because all chip-removing machining is dispensed with.
    Type: Grant
    Filed: May 1, 1986
    Date of Patent: June 2, 1987
    Inventor: Egon Evertz
  • Patent number: 4665969
    Abstract: A continuous casting contrivance comprises a mold (7a) capable of being installed at the floor of the crucible (1) in an opening (3) that may, if necessary, display a casting punch (25a). Further provided for the mold is a cooling arrangement. As to whether the production and operating costs of a continuous casting contrivance of this type are to be significantly reduced as compared to the state of the art and the quality of the casting improved, and to be able to again prepare a mold for a renewed continuous casting, is provided for on the one hand by splitting the continuous casting mold (7a) into, if necessary, a supply part (4) accommodating the casting punch (25a) and, transversally to the direction of continuous casting, a cooling mold (7) capable of being regulated in its temperature, whereby the supply part (4) is disposed in the crucible floor (1) and/or in an insert (1a) provided there.
    Type: Grant
    Filed: April 12, 1985
    Date of Patent: May 19, 1987
    Assignee: Hans Horst
    Inventors: Hans Horst, Werner S. Horst, Bernardo P. Muellers
  • Patent number: 4660615
    Abstract: A continuous casting mold assembly that includes a mold unit including a pair of wide mold walls each having a wide copper plate supported on the inner side of a back-up frame and a pair of narrow mold walls each having a narrow copper plate supported on the inner side of a back-up frame and gripped between the wide mold walls; a water supply frame including a datum-side water supply frame adapted to support and determine the position of one of the wide mold walls on the back side thereof, and an adjustable-side water supply frame adapted to support the other wide mold wall for movement in clamping and unclamping directions in parallel relation with the opposing wide mold wall; a clamp mechanism mounted on the part of the water supply frame and operable to clamp the other wide mold wall toward the opposing wide mold wall to grip the narrow mold walls securely therebetween; and a narrow mold wall shift mechanism mounted on the part of the water supply frame to adjust the spacing between the two narrow mold wal
    Type: Grant
    Filed: March 14, 1986
    Date of Patent: April 28, 1987
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventor: Herbert Lemper
  • Patent number: 4660619
    Abstract: A continuous casting machine has an open ended flow-through mold surrounded by a plurality of spray nozzles connected in groups to segregated sources of water and air for dispensing the same individually or in combination. The spray nozzles are positioned to provide multiple zones of cooling. Each nozzle may include a mixing valve operated by a control which in turn is connected to an individual temperature sensor mounted on the surface of the mold in an opposed relation to each nozzle. The control establishes the flow rates of air and water at each nozzle in accordance with the individual temperature of that portion of the mold whose temperature is affected by the respective nozzle.
    Type: Grant
    Filed: July 23, 1985
    Date of Patent: April 28, 1987
    Assignee: Continuous Casting Systems Inc.
    Inventors: Klaus Nettelbeck, James D. McVay, Hermann Take
  • Patent number: 4658884
    Abstract: A tubular mold is included in a coolant container there being a tubular guide sheet arranged around the mold at a certain distance therefrom, the coolant flows through the gap between the mold and the guide sheet; as specific improvement the upper portion of the mold has grooves cut into the outside to be flown though by water offering therefore a relatively enlarged cooling surface as compared with the remainder of the configuration of the mold underneath, the guide sheet has a radially inward extension such that water is forced into and through the grooves; these grooves are provided in the area in which the liquid bath level is expected to occur in the mold.
    Type: Grant
    Filed: March 8, 1985
    Date of Patent: April 21, 1987
    Assignee: Mannesmann AG
    Inventors: Horst Euler, Hans-Joachim Meyer, Fritz-Peter Pleschiutschnigg
  • Patent number: 4640337
    Abstract: A continuous casting apparatus comprising a cooler body surrounding a graphite die. Alternatively, the cooler body itself defines the opening through which molten metal is passed. The cooler body has a plurality of integral grooves on an outer surface thereof defining ribs, and a shell or a plate encloses the grooves to define axial passages. The ribs have longitudinally spaced recesses in the form of semicircles on the edge of the ribs and indentations greater than the depth of the rib, whereby coolant moving along the axial passages is subjected to a turbulent flow. The coolant moving along the ribs enters the recesses and indentations and expands from the heat and is forced out to provide a continuous agitation of the coolant flow changing the speed of the moving coolant along the ribs for better heat transfer from the cooler body to coolant liquid.
    Type: Grant
    Filed: May 1, 1985
    Date of Patent: February 3, 1987
    Inventor: Gus Sevastakis
  • Patent number: 4635703
    Abstract: A cooling pad for use in a continuous casting apparatus for the production of cast sheets. The pad is provided with plural water supply and discharge holes satisfying the particular relations on the arrangement thereof. By using such a cooling pad, a filmy cooling water flow is uniformly and stably formed in the casting.
    Type: Grant
    Filed: August 6, 1985
    Date of Patent: January 13, 1987
    Assignees: Kawasaki Steel Corporation, Hitachi, Ltd.
    Inventors: Hakaru Nakato, Nagayasu Bessho, Tsutomu Nozaki, Yasuhiro Habu, Tomoaki Kimura
  • Patent number: 4632176
    Abstract: Apparatus for continuously forming a continuous strip of aluminum sheet material using a belt caster for forming a continuous strip of aluminum sheet material and a roll caster for immediately reducing the thickness of the continuous strip of aluminum sheet material wherein the continuous loop belt means used in the belt caster are driven by the rolls of said roll caster.
    Type: Grant
    Filed: April 19, 1985
    Date of Patent: December 30, 1986
    Inventor: Ronald A. Pearce
  • Patent number: 4621675
    Abstract: Process and apparatus for continuous casting in a twin-belt casting machine in which the moving side dams are guided along opposite sides of the moulding cavity by guide device extending along beside the respective moving side dams, and the moving side dams are cooled by cooling fluid circulated in at least a part of the guide device and applied directly to the moving side dams. The moving side dams are cooled by cooling fluid sprayed through orifices in the guide device directly onto the moving side dams along at least a part of the downstream zone of the moulding cavity. During movement of the side dams along the moulding cavity from its entrance to its exit, they pass successively through a first (or upstream) zone in which they face molten metal and through a second (or downstream) zone in which they face solidified metal. The cooling fluid is sprayed directly onto the moving side dams only in this second zone.
    Type: Grant
    Filed: July 9, 1985
    Date of Patent: November 11, 1986
    Assignee: Hazelett Strip-Casting Corporation
    Inventors: Yvon L. Vanelderen, Christian L. G. Raskin, Rene E. J. Mortier, John M. A. Dompas
  • Patent number: 4610725
    Abstract: A continuous extrusion machine, in which feedstock is admitted (at 50) to a peripheral groove (12) in a rotating wheel (10), is enclosed in that groove by a cooperating shoe (24), and is frictionally dragged along an arcuate passageway (48) formed by said groove and a projecting portion (30) of said shoe towards an abutment (36) carried by the shoe. The abutment tip and adjacent wheel parts disposed downstream of the abutment are cooled directly by a jet of cooling fluid issuing from a nozzle (64) carried downstream on the shoe. An annular band (FIG. 2, 74) of a good thermally-conductive metal embedded concentrically in the wheel enhances the cooling obtained. The extrusion apparatus yields a metal product (FIG.
    Type: Grant
    Filed: January 27, 1984
    Date of Patent: September 9, 1986
    Inventors: John East, Ian Maxwell
  • Patent number: 4593743
    Abstract: An oscillator for the mold tube of a continuous casting machine having a vertically oriented arcuate mold passage. The mold is mounted at the free end of a mold plate, the other end of which extends from the upper portion of a support frame. A vertical support is fixedly mounted adjacent the support frame and is coupled thereto by first and second links which respectively are pivotally connected at their opposite ends to the upper and lower portions of the vertical support and the support frame. An eccentric drive is mounted on the vertical support between the links and is coupled to the first link for oscillating the mold tube along the arcuate path defined by the mold tube passage.
    Type: Grant
    Filed: May 9, 1985
    Date of Patent: June 10, 1986
    Assignee: Continuous Casting Systems Inc.
    Inventors: James D. McVay, Hermann Take
  • Patent number: 4589470
    Abstract: A cooling apparatus and related method for a continuous casting apparatus includes a series of spray nozzles for spraying a coolant against one surface of a moving chill substrate. The invention apparatus includes an enclosure having vacuum applied thereto for preventing migration of the sprayed coolant from the surface against which it is sprayed to the surface contacting the molten solidifying material. Any coolant having a tendency to escape along sealed edges of the enclosure is forced back into the enclosure by the pressure gradient. The edges are sealed by elongated plastic rods. Additionally, scrapers are provided for removing remanent coolant from the sprayed surface. The coolant is sprayed at a high velocity to increase its heat transferring efficiency.
    Type: Grant
    Filed: May 8, 1984
    Date of Patent: May 20, 1986
    Assignee: Electric Power Research Institute Inc.
    Inventors: John R. Bedell, Paul G. Friedmann, Julian H. Kushnick, Eli Rosenthal, James R. Hubbard, Christian J. Zingler
  • Patent number: 4582114
    Abstract: A continuous casting apparatus for the production of cast sheets having a casting space defined by a pair of opposed endless belts and a pair of side plates arranged near the side edge portions of the belts while being brought into intimate contact therewith and designed to be converged toward a drawing direction. In this apparatus, a filmy water flow-forming pad arranged behind each of the belts, and each of the side plates are so profiled that the casting space inclusive of the tapered portion depicts a smooth curve at at least a transition area from the taper end portion to a constant thickness portion.
    Type: Grant
    Filed: April 24, 1984
    Date of Patent: April 15, 1986
    Assignees: Kawasaki Steel Corporation, Hitachi, Ltd.
    Inventors: Sadayuki Saito, Noboru Yasukawa, Takao Koshikawa, Tsutomu Nozaki, Tomoaki Kimura
  • Patent number: 4582110
    Abstract: An electromagnetic stirring mold for the manufacture of continuously cast bloom, which includes a copper plate constituting a water-cooling type mold, a backup frame, a mold frame and an electromagnetic stirrer. In this mold, water-cooling passages are defined between the copper plate and the backup frame and between the backup frame and the mold frame, respectively, which are communicated at their upper parts to water supply and discharge passages located in the upper part of the mold frame, whereby a mounting space for the electromagnetic stirrer is sufficiently formed down below the lower part of the mold frame.
    Type: Grant
    Filed: February 14, 1984
    Date of Patent: April 15, 1986
    Assignee: Kawasaki Steel Corporation
    Inventor: Hisakazu Mizota
  • Patent number: 4580614
    Abstract: An aftercooler for a horizontal continuous casting system is comprised of a plurality of individual cooling elements adapted to be positioned in contact with the strand after it leaves the mold. Each of the cooling elements has a passage for the flow of a fluid cooling medium through it and either or both of the contact pressure of the element against the strand and the flow rate of cooling medium may be adjusted to control the rate of cooling to suit the solidification characteristics of the metal being cast. Preferably, a plurality of sets of cooling elements are sequentially disposed along the length of the strand immediately downstream of the mold, each of the sets being disposed circumferentially around the strand so as to cool it on all sides. Control of the contact pressure and cooling medium flow rate is effected by a computer which compares measured values of cooling medium temperatures and flow rates in the elements with stored data representing desired characteristics for the metal being cast.
    Type: Grant
    Filed: January 31, 1983
    Date of Patent: April 8, 1986
    Assignee: Vereinigte Edelstahlwerke Aktiengesellschaft
    Inventor: Manfred Haissig
  • Patent number: 4579319
    Abstract: A combination sintering-annealing furnace is provided, wherein the sintering furnace section and the annealing furnace section are arranged adjacent with each other and separated by a partition wall. A plurality of ventilation windows is provided through the partition wall to allow the waste combustion gas in the sintering furnace to flow into the annealing furnace. The opening area of each ventilation window is adjusted by an adjuster plate. The annealing furnace is also provided with a plurality of cold air inlet ports for introducing therethrough cold air from the atmosphere, the opening area of each cold air inlet port being adjusted by an adjuster plate. A desired temperature distribution in the annealing furnace may be established by controlling the opening areas of the respective ventilation windows and respective cold air inlet ports.
    Type: Grant
    Filed: June 22, 1984
    Date of Patent: April 1, 1986
    Assignee: M.C.L. Co., Ltd.
    Inventor: Nobuyoshi Sasaki
  • Patent number: 4577676
    Abstract: A method and apparatus for casting an ingot with refined grain structure from a metallic melt supplied to a casting mold. The mold is intermittently cooled to form a zone of fine dendrites on the inner peripheral surface of the mold. Then, the fine dendrites are reheated to detach secondary dendritic arms therefrom. Finally, the detached secondary dendrite arms are mixed into the melt to serve as nuclei for grain refinement as the melt solidifies into a cast ingot having a refined grain structure.
    Type: Grant
    Filed: December 17, 1984
    Date of Patent: March 25, 1986
    Assignee: Olin Corporation
    Inventor: William G. Watson
  • Patent number: 4541478
    Abstract: A continuous casting mould comprises a first mould part moulding the strand cross section and at least one second mould part arranged after the first part in the strand travelling direction. The second mould part is equipped with wall parts supporting the strand surface and getting into contact therewith. The wall parts are pressable against the strand surface by adjusting means. In order to provide a continuous casting mould which peripherally requires only little space, in which the adjustment force does not depend on the wear of the wall parts, and in which completely uniform adjustment forces and thus always the same wear occur over the length of the wall parts, the adjusting means are arranged so as to be parallel to the longitudinal axis of the strand with their longitudinal axes.
    Type: Grant
    Filed: September 24, 1982
    Date of Patent: September 17, 1985
    Assignee: Voest-Alpine Aktiengesellschaft
    Inventors: Hermann Schubert, Heinrich Thone, Richard Kasmader
  • Patent number: 4537243
    Abstract: The casting belt is preheated with steam closely ahead of the entrance to the casting zone by providing wrap-around steam feed tubes having nozzles, such tubes being positioned in very deep circumferential grooves in input pulley or nip pulley which moves the casting belt into the input end of the casting zone. These circumferential grooves of the input or nip pulley also house wrap-around liquid coolant feed tubes for cooling the casting belt near the beginning of the casting zone. The wrap-around steam feed tubes also have radial ports positioned to direct steam toward the reverse side of the endless belt, with the port being spaced from the nozzle thereby providing a staged elevation of temperature in the flexible casting belt on the input or nip pulley, while the belt is in contact therewith before the belt reaches the casting zone.
    Type: Grant
    Filed: November 9, 1983
    Date of Patent: August 27, 1985
    Assignee: Hazelett Strip-Casting Corporation
    Inventors: Robert W. Hazelett, John F. B. Wood
  • Patent number: 4537239
    Abstract: The invention provides a chilled casting wheel. An annular wheel core member has axially extending channels formed about a circumferential, outer peripheral surface thereof and is adapted to rotate about a concentric axis of rotation. A cylindrical, axially extending wheel rim member concentrically connected to the core peripheral surface has a preselected interference fit therewith to provide a preselected residual, circumferential stress within the rim. A coolant mechanism directs a fluid coolant to the interior surface of the rim and through the channels.
    Type: Grant
    Filed: August 20, 1984
    Date of Patent: August 27, 1985
    Assignee: Allied Corporation
    Inventors: Boleslaw L. Budzyn, Charles E. Carlson
  • Patent number: 4535832
    Abstract: For use in a continuous casting apparatus wherein molten metal flows through a die progressively and is solidified in the die and withdrawn from the die, a die and cooling assembly comprising a tubular die having an external tapered surface which is uniformly tapered radially inwardly in the direction of movement of metal to the die, a cooling sleeve having an internal surface complementary to the external surface of the die and in substantial contact with the external surface of the die and an annular cooling jacket wall surrounding the cooling sleeve and having portions thereof spaced from the sleeve to define a cooling chamber. At least one coolant inlet is provided to the chamber and at least one coolant outlet is provided from the chamber. The inlet and outlet are spaced axially with the outlet being nearest the upper end of the die where the molten metal enters the die and the inlet being nearest the lower end of the die where the solidified metal leaves the die.
    Type: Grant
    Filed: December 8, 1983
    Date of Patent: August 20, 1985
    Inventor: Gus Sevastakis
  • Patent number: 4531568
    Abstract: An apparatus for the continuous casting of metallic strand from a melt has a fluid-cooled coolerbody surrounding a casting die, and resilient O-ring seals which surround the upper and lower ends of the coolerbody to contain the cooling fluid within a distribution conduit. Extensions of the cooling fluid distribution conduit are formed within the coolerbody between the O-rings and the heat-dissipating strand, as protective thermal barriers to limit the temperature rise experienced by the O-rings. An annular shield also is disposed intermediate the upper O-ring and the strand to form two air gaps which enhance the thermal barrier effect.
    Type: Grant
    Filed: September 30, 1983
    Date of Patent: July 30, 1985
    Assignee: Kennecott Corporation
    Inventor: Calvin Rushforth
  • Patent number: 4523623
    Abstract: A plate mould for continuous casting includes a carrying frame and broad-side walls supported therein and delimiting the mould cavity. Between the broad-side walls, end walls are arranged. The broad-side walls are adjustable normal to the axis of the mould cavity by an adjustment device and clampable relative to each other by a clamping device. In order to enable a perfect movement of the broad-side walls in the direction normal to the axis of the mould cavity, which is simple to maintain and adjust by the maintenance personnel, and to provide an easy installation and removal of the mould insert, each broad-side wall is clampable in the vertical direction by at least one clamp strap, against a holding plate of the carrying frame supporting the broad-side wall. The clamp strap is supported on the broad-side wall and on the carrying frame and clampable against the carrying frame in the manner of a bending carrier by a tensioning device that is detachable from the upper side of the mould.
    Type: Grant
    Filed: September 24, 1982
    Date of Patent: June 18, 1985
    Assignee: Voest-Alpine Aktiengesellschaft
    Inventors: Gunter Holleis, Horst Wiesinger
  • Patent number: 4520859
    Abstract: A thin strip of metal or alloy is subjected to rapid solidification as it is ejected under pressure in a molten state from a crucible onto a cold, continuous band moving at high speed beneath the crucible's opening, in order to form metal strips in the vitreous state. An atmosphere under reduced pressure surrounding the zone of impact of the molten metal on the band is provided by a partially evacuated housing having opposed narrow inlet and outlet openings through which the band passes. The band is cooled and precisely positioned, and its vibration is minimized, by ejecting fluid from openings in the bottom of the housing, over which the band passes in closely parallel fashion. A pressurized gas at low temperature, ejected through these openings in the direction of the band, creates a fluid cushion between the band and the bottom of the housing.
    Type: Grant
    Filed: July 17, 1981
    Date of Patent: June 4, 1985
    Assignee: Pont-A-Mousson, S.A.
    Inventors: Pascal Fournier, Jean-Claude Peraud
  • Patent number: 4506724
    Abstract: An ingot mold with adjustable dimensions for a machine for continuously casting metal, comprising a support frame fixed on the oscillating table of the machine, two transverse walls and two longitudinal walls, connected to the support frame. The transverse walls are fixed to the support frame by application to the interior faces of the corresponding sides, and each transverse wall is provided with individual members for adjusting its thickness in accordance with the desired spacing between them. The support frame can thus be rigidly and permanently fixed on the oscillation table, the dimensions of the casting cavity being determined merely by adjustment of the thickness of the walls.
    Type: Grant
    Filed: March 13, 1981
    Date of Patent: March 26, 1985
    Assignee: Cledid S.A.
    Inventor: Raymond Vial
  • Patent number: 4502528
    Abstract: The method and apparatus of the invention provide a rotatable casting wheel having an outer peripheral quench surface and an interior, annular coolant chamber. A wheel hub has a concentric axis of rotation, and two spaced-apart, annular, radially extending side members connected thereto and located concentric therewith delimit the side walls of the wheel and the coolant chamber. A cylindrical, axially extending wheel rim member is connected between the peripheral circumferential edges of the side members to provide the wheel quench surface and delimit the peripheral, circumferential wall of the coolant chamber. The rim has a frusta-conical inner surface that is sloped radially outward along the intended direction of coolant flow. A flow director located within the coolant chamber is comprised of at least one annular, radially extending support member and a cylindrical, axially extending flange member connected to the support member.
    Type: Grant
    Filed: April 4, 1983
    Date of Patent: March 5, 1985
    Assignee: Allied Corporation
    Inventors: Anthony P. Frissora, Alexander T. Kojak
  • Patent number: 4494594
    Abstract: A mold tube is contained within an open water-cooling vessel, and the tube is cooled by directing water sprays at it. Although a steam barrier would otherwise form around the mold tube and prevent water penetration, thus resulting in a tube melt-down, this effect of the steam barrier is eliminated if certain operating parameters have values within critical ranges. The important parameters include the distance between the spray nozzles and the mold tube, the angle of each water spray, and the overlap of the sprays on the mold tube.
    Type: Grant
    Filed: September 8, 1981
    Date of Patent: January 22, 1985
    Assignee: AMB Technology, Inc.
    Inventor: Cass R. Kurzinski
  • Patent number: 4493361
    Abstract: A continuous casting apparatus wherein molten metal flows through a die progressively and is solidified in the die and withdrawn from the die including a die and cooling assembly comprising a tubular die having an external tapered surface which is uniformly tapered radially inwardly in the direction of movement of metal to the die, a cooling sleeve having an internal surface complementary to the external surface on the die and in substantial intimate surface contact with the external surface of the die and an annular cooling shell surrounding the cooling sleeve and having portions thereof spaced from the sleeve to define a cooling chamber. The die and cooling assembly includes at least one inlet to the chamber and at least one outlet from the chamber, the inlet and the outlet being spaced axially with the outlet being nearest the inlet end of the die into which the molten metal flows.
    Type: Grant
    Filed: December 7, 1981
    Date of Patent: January 15, 1985
    Inventor: Gus Sevastakis
  • Patent number: 4489772
    Abstract: A continuous casting machine for battery grids includes a rotary drum on the outer peripheral surface of which the battery grid pattern is formed by a series of grooves. The peripheral surface of the drum mates with a shoe through which molten lead is directed into the grooves as the drum rotates. The outer periphery of the drum is a shell that is connected to rotary side plates by means of roll pins that enable the shell as a whole to expand and contract independently of the side plates. The drum is maintained at a desired temperature to solidify the molten lead directed into the grooves of the battery grid pattern by circulating a heated liquid through the drum.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: December 25, 1984
    Assignee: Wirtz Manufacturing Company, Inc.
    Inventors: Jack E. McLane, Raymond L. Schenk, John W. Wirtz
  • Patent number: 4483385
    Abstract: A mold tube is contained within an open water-cooling vessel, and the tube is cooled by directing water sprays at it. Because of the use of a water-cooling system which does not require a pressure-tight integral mold tube/water system, the cooling system may remain stationary while the mold tube is oscillated. In this way the oscillating mechanism can be relatively inexpensive, the total weight which must be moved up and down typically being in the range of 80-200 pounds.
    Type: Grant
    Filed: November 5, 1981
    Date of Patent: November 20, 1984
    Assignee: AMB Technology, Inc.
    Inventor: Cass R. Kurzinski
  • Patent number: 4480373
    Abstract: Iron or steel products are produced from oxide ores in a unique process which utilizes air and regular coal as its primary energy source and wherein the ore is melted in a carbon dioxide zone for separation and absorption of the iron oxides into a slag which is transferred to a carbon-monoxide generating zone. In the latter zone the iron oxides are reduced to form the iron or steel product. Carbon monoxide containing flue gas from the latter zone is burned with air and utilized as a heat source in the carbon dioxide zone. Slag from the various unit processes is collected and used to preheat process air by either continuous operation or in a semi-continuous regeneration process. In both modes of slag preheating, flue gas is utilized to maintain the temperature of the slag bath and high temperature air preheating prior to the slag bath.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: November 6, 1984
    Inventor: Ernest S. Geskin
  • Patent number: 4480679
    Abstract: Chill molds for multiple continuous casting of wires and casting strands with small cross-sections from metal, in particular from copper and copper alloys, are provided with a row of mold hollow spaces with walls from graphite and the walls are cooled with a coolant circle. In order to have to replace upon wear out or operational disturbances only the parts involved and the exchange of the parts nevertheless to remain simple and the space requirements of the chill mold remain low, the chill mold is provided with building elements independent from each other, that is with cooling elements (1) and mold support elements (2), which are disposed alternately and touching each other in a row next to each other or on top of each other as desired. The mold support elements (2) containing the mold hollow spaces (10) are freely movable with respect to their neighboring cooling elements (1). Each mold support element (2) can be individually pressed against a stop face (18') opposite to the casting direction.
    Type: Grant
    Filed: August 28, 1981
    Date of Patent: November 6, 1984
    Assignee: Fried. Krupp GmbH
    Inventor: Ulrich Katschinski
  • Patent number: 4471830
    Abstract: In the art of continuous vertical casting, an improved cooler assembly surrounds the forming die through which molten metal is poured for forming elongated metallic bar products which may be solid or hollow. The cooler assembly includes a cooling sleeve surrounding the die in continuous intimate contact; and a jacket surrounding the cooling sleeve and spaced therefrom to provide space for receiving a coolant. Along a substantial intermediate length of the cooling sleeve is formed a continuous helical or spiral groove for controlling the flow of coolant from the bottom to the top of the cooler assembly while increasing surface contact of the coolant with the cooling sleeve and the jacket itself. Coolant is introduced into and discharged from the cooler assembly at an oblique angle to initiate helical flow of the coolant about the sleeve and also avoid cold spots and consequently grain and strength imperfections in the bar product being cast.
    Type: Grant
    Filed: October 31, 1979
    Date of Patent: September 18, 1984
    Inventor: Gus Sevastakis
  • Patent number: 4468281
    Abstract: A silicon ribbon growth wheel having a thermal resistance zone between an outer silicon contacting surface and an inner cooling fluid contacting surface to control rate of heat flow from the outer to inner surfaces. In a preferred form the thermal resistance zone is defined by a row of holes through the wheel near the outer surface with said holes isolated from the cooling fluid. A method for controlling the heat flow is also diclosed.
    Type: Grant
    Filed: December 27, 1982
    Date of Patent: August 28, 1984
    Assignee: Atlantic Richfield Company
    Inventors: David L. Bender, Samuel N. Rea
  • Patent number: 4468280
    Abstract: A silicon ribbon growth wheel having an internal cooling fluid contacting surface modified to provide a lateral temperature profile on the wheel surface of lower temperature near the wheel edges. In a preferred form the inner surface is provided with grooves near the wheel edges to increase heat conduction to the cooling fluid at the wheel edges. A method for surface temperature profiling the growth wheel is also disclosed. A method for surface temperature profiling the growth wheel is also disclosed.
    Type: Grant
    Filed: December 27, 1982
    Date of Patent: August 28, 1984
    Assignee: Atlantic Richfield Company
    Inventors: David L. Bender, Samuel N. Rea
  • Patent number: 4463796
    Abstract: The continuous metal casting method includes continuously forming a portion of an ingot in the open-ended mold of the primary cooling zone under pressure, with a cold junction being formed at the end of the portion. The portion of the ingot is intermittently drawn into the secondary cooling zone, to produce the ingot subdivided by the cold junctions into portions of a required length. In the intervals between the successive drawing cycles, the ingot is treated in the secondary cooling zone to effect constrained shrinkage, while producing in the cold junction areas a bending strain of a value not short of the yield strength of the metal. The plant includes a vessel for the metal to be cast, communicating with the open-ended mold of the primary cooling zone.
    Type: Grant
    Filed: February 22, 1982
    Date of Patent: August 7, 1984
    Inventors: Evgeny A. Korshunov, Alexandr N. Kuznetsov, Maxim B. Ovodenko, Gennady G. Kuzmin, Valery P. Kostrov, Alexandr N. Timofeev, Valery L. Bastrikov, Tatyana V. Meschaninova
  • Patent number: 4452298
    Abstract: A method and apparatus for the cooling of a continuously cast metal strand, comprising a plurality of support rollers, located in the second zone of cooling. The support rollers are cooled from their interior by the passage therethrough of cooling fluid. The rollers have interior walls which display a wave-like shape to present a great surface area for superior cooling while still supporting the loading stress due to the weight of the metallic strand.
    Type: Grant
    Filed: March 23, 1982
    Date of Patent: June 5, 1984
    Assignee: Mannesmann Aktiengesellschaft
    Inventor: Werner Rahmfeld
  • Patent number: 4438802
    Abstract: An apparatus for withdrawing a metal casting from the mould of a continuous metal casting plant comprises a movable housing and cooled shoes disposed along the perimeter of the casting. Each shoe is provided with two pairs of wedges disposed between the shoe and the housing. One of the wedges of each pair is rigidly secured on the shoe. The other wedges of these pairs are connected with each other through a member adjustable in length and one of them also with a crossbar through a member of a constant length. The apparatus is also provided with a drive for pressing the shoes against the casting and a drive for withdrawing the casting from the mould, rods of hydraulic cylinders thereof being connected to the crossbar. The proposed invention makes it possible to improve the quality of a casting, increase the metal yield and to step up the rate of casting.
    Type: Grant
    Filed: November 18, 1981
    Date of Patent: March 27, 1984
    Inventors: Evgeny A. Korshunov, Maxim B. Ovodenko, Alexandr N. Kuznetsov, Gennady G. Kuzmin, Valery P. Kostrov, Alexandr N. Timofeev, Tatyana V. Meschaninova, Valery L. Bastrikov
  • Patent number: 4412580
    Abstract: Disclosed is an apparatus for and a method for more uniform and rapid cooling of molten metal, which is continuously cast into a wheel-band machine, by dispersing a relatively small amount of coolant from the periphery of a band presser wheel onto the continuous metal band at the point where the molten metal first contacts said band, with the unexpected beneficial effects of increasing the cast bar temperature and greatly reducing the amount of inverse segregation on the band-side surface of the resulting cast bar.
    Type: Grant
    Filed: November 26, 1980
    Date of Patent: November 1, 1983
    Assignee: Southwire Company
    Inventors: Kenneth E. Chadwick, E. Henry Chia, Robert H. Ogletree, Frank M. Powers, Larry S. Richardson
  • Patent number: 4374539
    Abstract: A mold plate for molds for the continuous casting of metals comprising a copper plate provided on one side with a number of grooves; a bar of plastics material inserted in each of said grooves, with a side clearance so as to define between its outer periphery and the inner periphery of the groove a flow passage for the refrigerating water of reduced flow section with respect to the section of said groove; a metallic closure list in said groove above said bar, so as to firmly maintain said bar in place in said groove, and means for sealingly securing said closure list to said mold plate.
    Type: Grant
    Filed: June 18, 1980
    Date of Patent: February 22, 1983
    Assignee: Continua International Continuous Casting S.p.A.
    Inventor: Enzo Colombo
  • Patent number: 4367783
    Abstract: An improvement in continuous metal casting machines of the type having a pair of flexible, moving casting belts which revolve along endless paths for defining a casting region therebetween and moving side dams which revolve along with the casting belts for confining the cast strip, slab or bar laterally. The casting belts are individually supported by upper and lower carriage means. The machine is provided with sensors such as load cells for sensing the displacement forces existing between the upper and lower carriages at selected points along the path of belt travel, and for sensing the side pressures exerted upon the side dams by the cooling, solidifying metal. This sensing permits the maintenance of predetermined, desired contact pressures along the length of the solidifying metal to thereby improve the physical characteristics of the cast product.
    Type: Grant
    Filed: October 27, 1980
    Date of Patent: January 11, 1983
    Assignee: Hazelett Strip-Casting Corporation
    Inventors: John F. B. Wood, Stanley W. Platek, Joseph C. O'Kane, Gary P. Ackel
  • Patent number: 4307771
    Abstract: A casting wheel cooling apparatus and method for rapid quenching of molten metal is provided. The cooling apparatus provides a multiplicity of axial conduits around the periphery of the wheel, close to the chill surface. In operation, molten metal deposits on the chill surface of the rapidly rotating casting wheel. The molten metal cools and solidifies, transferring heat to the casting wheel. By flowing coolant, preferably water, through the conduits at a sufficient rate, the heat transfer is generally radial. The molten metal cools uniformly across its width and the resulting metallic strip has substantially uniform properties.
    Type: Grant
    Filed: January 25, 1980
    Date of Patent: December 29, 1981
    Assignee: Allied Corporation
    Inventors: Seymour Draizen, Charles E. Carlson, Andiappan K. Murthy
  • Patent number: 4307770
    Abstract: A cooled mold assembly for the continuous, high-speed casting of metallic strands, especially upcasting strands of copper alloys such as brass, has a hollow die in fluid communication with a melt typically held in a casting furnace. A coolerbody surrounds the die in a tight-fitting relationship to form a solidification front in the melt as it advances through the casting zone of the die. The die is preferably slip fit in the coolerbody. A shoulder on the die engages a lower face of the coolerbody and together with a small irregularity on the upper coolerbody wall prevents an axial movement of the die before it thermally expands against the coolerbody. An insulating member located between the die and the coolerbody and below the solidification front fixes the location of that front within a dimensionally uniform area of the die. The insulating member is preferably a ring of a material such as cast silica that has a low coefficient of thermal expansion, a low porosity, and is highly resistant to thermal shock.
    Type: Grant
    Filed: July 13, 1979
    Date of Patent: December 29, 1981
    Assignee: Kennecott Corporation
    Inventors: George Shinopulos, M. Ronald Randlett, Terry F. Bower