US3903955A - Horizontal continuous casting apparatus with reciprocatory gate - Google Patents

Horizontal continuous casting apparatus with reciprocatory gate Download PDF

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Publication number
US3903955A
US3903955A US410293A US41029373A US3903955A US 3903955 A US3903955 A US 3903955A US 410293 A US410293 A US 410293A US 41029373 A US41029373 A US 41029373A US 3903955 A US3903955 A US 3903955A
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United States
Prior art keywords
orifice
vessel
ingot mold
plate
plates
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Expired - Lifetime
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US410293A
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English (en)
Inventor
Jacques Antoine
Robert Alberny
Jacques Michelet
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Institut de Recherches de la Siderurgie Francaise IRSID
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Institut de Recherches de la Siderurgie Francaise IRSID
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/045—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for horizontal casting
    • B22D11/047—Means for joining tundish to mould

Definitions

  • a reciprocatory gate is provided for closing the vessel orifice and cutting of passage of the molten metal from the orifice into the mold.
  • the present invention relates to apparatus for the continuous horizontal casting of metals, which term includes metal alloys, especially ferrous alloys such as steel.
  • Apparatus for the continuous horizontal casting of metals generally comprises a vessel adapted to receive the metal in the molten state defining in the vicinity of its lower end a lateral orifice located adjacent and in communication with an open-ended ingot mold the form of which determines the cross-section of the case product.
  • the cast product is extracted from the mold by mechanical means, passage of the molten metal from the vessel to the mold taking place most often through a refractory conduit integral with a wall of the vessel and penetrating into said mold at one of the ends of the latter.
  • the object of this invention is to provide improvements in such apparatus, especially in regard to the constructive arrangements of the refractory conduit connecting the vessel to the ingot mold, with a view to improving the conditions in which the apparatus is used in steelworks.
  • an apparatus for the continuous horizontal casting of metals which comprises a vessel communicating through a lateral orifice located in the vicinity of its lower end with an ingot mold from which the molded product is removed substantially continuously, a member for closing the vessel orifice and located upstream of the mold relative to the direction in which the product is extracted.
  • the apparatus according to the invention enables the molding operations to be stopped no matter how full the vessel may be and whatever the reason necessitating the stoppage, without involving unwanted emptying of the vessel.
  • the closing member located upstream of the ingot mold enables the supply of molten metal to the mold to be interrupted and, thus, any necessary operation may be undertaken. This confers upon the molding process flexibility and reliability not heretofore obtainable with existing procedures.
  • FIG. 1 is a longitudinal section through a continuous molding apparatus according to the invention.
  • FIG. 2 is a sectional view through part of the apparatus shown in FIG. 1.
  • FIG. 1 there is shown a continuous casting apparatus comprising essentially a reservoir or supply vessel 1 receiving the molten metal and including a lateral orifice 2 located in the side wall close to the bottom of the vessel, this orifice being provided in a nozzle of refractory material, and a horizontal ingot mold 4 open at its ends.
  • the open inlet end of mold 4 is adjacent and in communication with lateral orifice 2 in vessel 1.
  • the vessel is provided with a device of a type known per se for heating and circulating the metal, this device including channel 26 for circulating and induction heating the metal in the vessel.
  • porous plug 27 is disposed in the bottom of the vessel for insufflation of an inert gas.
  • the vessel is furnished with fluid-tight cover 28 so as to enable the establishment above the molten metal of a protective atmosphere, the metal being introduced into the vessel in a manner known per se through conduit 29 which can be closed and is capable of being put in communication with a feed ladle protected from the atmosphere.
  • the ingot mold may be of any type and is constituted in the illustrated embodiment merely by way of example by a double-walled copper casing associated with boxes for the introduction and evacuation of a cooling liquid so as to constitute a structure known in the art by the term water-jacket.
  • the passage of the molten metal from the vessel to the ingot mold is effected through connecting conduit 5 which, on the one hand, opens at one end into vessel 1, in axial alignment with lateral orifice 2 and, on the other hand, opens into the open inlet end of the ingot mold.
  • the passage of the molten metal from the vessel to the ingot mold can be interrupted by a closing device described in detail hereinafter.
  • connecting conduit 5 is shown as a device 6 of a type similar to the devices known as valved nozzles in the art of casting of metals, which is interposed between vessei 1 and ingot mold 4.
  • the device 6 includes movable closing member or gate 7 guided for reciprocating movement between two fixed plates 8 and 9, the former of which is supported against one of the ends of nozzle 3, and the latter of which is associated with nozzle 10 cooperating with the inlet end of the ingot mold in a manner which will be explained hereinafter.
  • Plate 8 has a central orifice of the same cross-section as, and co-axial with, lateral orifice 2 and thus makes up a part of connecting conduit 5.
  • the plate 8 is centered in relation to nozzle 3 and is applied in a fluid-tight manner against the latter by a removable metallic clamping plate 11 affixed to vessel 2 by cottering and provided with a bearing surface 12 cooperating with a peripheral shoulder in plate 8.
  • the plate 9 is also provided with a central orifice of the same cross-section as, and co-axial with, lateral orifice 2 and also makes up a part of connecting conduit 5.
  • the plate 9 is centered in relation to the lateral orifice by means of a movable metallic clamping plate 13 itself centered in relation to plate 11 by a machined internal bearing surface 14 enabling axial sliding movement in cooperation with a corresponding machined external bearing surface of fixed clamping plate 11.
  • the movable plate 13 is provided with a bearing surface 15 cooperating with a peripheral shoulder in plate 9..
  • the clearance between the two clamping plates 11 and 13 is regulated by threaded tie rods 16 one end of each of which is fixed to plate 11 and the other ends of which are engaged in bores in the periphery of movable plate 13 and are screwed into nuts 21.
  • the movable closing member or gate. "I is of generally parallelipedal shape and is provided with an orifice 17 which can be brought into alignment with lateral orifice 2 in the vessel by displacement of member 7 by the operation of jack 18.
  • the movable member or gate 7 is guided during its displacement by metallic guides 19 and 20 integral with clamping plate 1 1 and is displaced in skew notches 30 and 31 made, respectively, in the facing surfaces of plates 8 and 9.
  • the skew notches 30 and 31 enable the dimension of the closing member to be reduced in the direction of the casting and, consequently, the drop in temperature of the metal while it is passing through connecting conduit 5 to be limited, because of the fact that gate 7 is partially embedded in the plates.
  • the gate 7 is clamped between plates 8 and 9 by tightening nuts 21 on threaded tie rods16, with interpositioning of compression springs between the nuts and plate 13, the compression force being transmitted by respective bearing surfaces 12 and 15 of plates 11 and 13, so as to enable closing member '7 to be reciprocated while ensuring tightness to the molten metal between the plates and member 7.
  • the nozzle 10 has an orifice 22 of the shape of a truncated cone, the smaller end of which faces towards lateral orifice 2 in the vessel and is of the same crosssection as this orifice, and the larger end of which faces towards the ingot mold, being of a cross-section similar to the cross-section of the ingot mold and preferably smaller than the latter cross-section.
  • the nozzle is shaped externally so as to be engaged in a recess 23 of the shape of a truncated cone formed in plate 9 and presents facing towards the ingot mold a part 24 also of the shape of a truncated cone bearing on a bearing surface of corresponding conicity of the ingot mold.
  • the nozzle may be clamped between plate 9 and the ingot mold by the action of a jack 25 held at constant pressure and associated with the ingot mold in such a way as to ensure the tightness of the connecting conduit 5 at the zones where the nozzle 10 is joined, respectively, with plate 9 and with the ingot mold.
  • the ingot mold is guided by slide bars (not shown).
  • the force of application of the ingot mold against nozzle 10 is transmitted by plate 9 to gate 7. it will therefore be obvious that the clamping force of the plates against the gate is the resultant of the compression force of the springs between nuts 21 and plate 9, and the force corresponding to the pressure in jack 25 when the ingot mold is in the operative position. in the event of the ingot mold being detached, the clamping force is produced solely by the compression springs.
  • the plates 8 and 9, movable closing member 7 and nozzle 10 are made of a refractory material having rela tively low heat transmission characteristics so as to avoid premature partial solidification in connecting conduit 5.
  • the selected material may be an aluminous refractory, zirconium oxide or boron nitride, the'latter material being particularly useful for nozzle lit) on account of its very low thermal conductivity and the relatively greater remoteness of this constituent part of the device in relation to vessel 2.
  • a further advantage of boron nitride is that the molten metal does not wet this material, which avoids the molten metal being Caught at the inlet to the ingot mold.
  • Other materials having similar properties may, however, be used for nozzle 10.
  • the metal is introduced into the vessel in a continuous manner through conduit or pipe 29, it being possible to adjust the temperature of the metal in the vessel by means of induction heating device 26, this device moreover enabling circulation of the metal to be brought about, which promotes the raising of embedded materials to the surface; this latter phenomenon is intensified by the bubbling activity induced in the interior of the metal by the insuftlation of an inert gas through porous plug 27, another efiect of this bubbling activity being to make homogenuous the temperature in the interior of the metal contained in the vessel.
  • the maintenance of an inert atmosphere above the metal enables the avoidance of any oxidation of the metal.
  • the product formed in the ingot mold is extracted in a continuous manner at the downstream end of the apparatus, it being possible to vary the speed of extraction cyclically, as is known in the art.
  • closing member 7' is displaced so as to cut off the passage of the molten metal from the vessel to the ingot mold.
  • the shape of the cross-section of this conduit at the end of nozzle 3 in alignment with lateral orifice 2 in the vessel is independent of the shape of the cross-section of the cast product, the transition from one cross-section to the other being effected in a progressive manner by orifice 22 in nozzle 10.
  • the metal which may be contained in the vessel during the course of a period when the casting process is interrupted may be maintained at a desired temperature as long as is necessary by keeping the induction heating device in operation, this enabling a subsequent casting operation to proceed without loss of metal.
  • an apparatus for the continuous horizontal casting of a molten metal which comprises a vessel receiving the molten metai, the vessel including a bottom and side wall, and the vessel side wall defining a lateral orifice in the vicinity of the vessel bottom, a horizontally extending ingot mold having an open upstream end and an open downstream end whence a cast metal product is removed, and a means for passing the molten metal from the lateral orifice into the open upstream end of the ingot mold, the means comprising a connecting conduit between the lateral orifice and the open upstream end of the ingot mold, and a movable closing gate defining an orifice mounted in the connecting conduit for cutting off passage of the molten metal from the lateral orifice to the ingot mold: the combination of two plates wherebetween the gate is held for reciprocating displacement in a direction substantially perpendicular to the axis of the lateral orifice, the orifice in the gate having an axis substantially perpendicular to said direction and each of the plates having
  • the plates having skew notches, and the gate being of generally parallelipedal shape and being supported in the skew notches for reciprocal displacement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
US410293A 1972-11-06 1973-10-26 Horizontal continuous casting apparatus with reciprocatory gate Expired - Lifetime US3903955A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7239113A FR2213121B1 (sv) 1972-11-06 1972-11-06

Publications (1)

Publication Number Publication Date
US3903955A true US3903955A (en) 1975-09-09

Family

ID=9106654

Family Applications (1)

Application Number Title Priority Date Filing Date
US410293A Expired - Lifetime US3903955A (en) 1972-11-06 1973-10-26 Horizontal continuous casting apparatus with reciprocatory gate

Country Status (14)

Country Link
US (1) US3903955A (sv)
JP (1) JPS49134527A (sv)
AT (1) AT333453B (sv)
AU (1) AU6182773A (sv)
BE (1) BE806885A (sv)
BR (1) BR7308394D0 (sv)
CA (1) CA1005966A (sv)
DE (1) DE2355015A1 (sv)
ES (1) ES420293A1 (sv)
FR (1) FR2213121B1 (sv)
GB (1) GB1437101A (sv)
IT (1) IT998836B (sv)
LU (1) LU68739A1 (sv)
SE (1) SE383272B (sv)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4195685A (en) * 1976-12-22 1980-04-01 Abraimov Boris F Horizontal continuous casting apparatus
US4340110A (en) * 1979-07-10 1982-07-20 Nippon Kokan Kabushiki Kaisha Apparatus for connecting tundish and mold for horizontal continuous casting of metal
US5373890A (en) * 1991-09-06 1994-12-20 Mitsubishi Denki Kabushiki Kaisha Horizontal continuous casting method and its device

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5187432A (ja) * 1975-01-30 1976-07-31 Shinko Electric Co Ltd Denjihonpushikyojukinzokuryuryoseigyosochi
DE2840398C2 (de) * 1978-09-16 1982-02-18 Didier-Werke Ag, 6200 Wiesbaden Schiebeverschlußanordnung für den Abstich an Metallschmelze enthaltenden Behältnissen
DE2921702C2 (de) * 1979-05-29 1983-10-27 Mannesmann AG, 4000 Düsseldorf Elektro-Metallschmelzofen mit Bodenabstich
DE3037059A1 (de) * 1980-10-01 1982-04-29 Böhler AG, 4000 Düsseldorf Stranggussvorrichtung
DE3117407C2 (de) * 1981-05-02 1984-12-13 Technica-Guss GmbH, 8700 Würzburg Verfahren und Vorrichtung zum Ausziehen des Stranges bei einer Horizontal-Stranggießanlage
DE3201633C2 (de) * 1982-01-20 1988-07-07 Technica-Guss GmbH, 8700 Würzburg Absperrvorrichtung bei einer horizontalen Stranggießanlage
JPS58168457A (ja) * 1982-03-30 1983-10-04 Kawasaki Heavy Ind Ltd 水平連続鋳造装置
DE3328585C1 (de) * 1983-08-08 1984-07-26 Fried. Krupp Gmbh, 4300 Essen Giessduese zum Zufuehren von Stahlschmelze in eine Stranggiesskokille
DE3328586C2 (de) * 1983-08-08 1985-09-05 Didier-Werke Ag, 6200 Wiesbaden Feuerfeste Kanalverbindung für Horizontal-Stranggießanlagen
DE3411769C2 (de) * 1984-03-30 1986-03-20 Mannesmann Ag, 4000 Duesseldorf Horizontalstranggießvorrichtung
JPS60257948A (ja) * 1984-06-04 1985-12-19 Nippon Kokan Kk <Nkk> 水平連続鋳造用鋳型
AT387165B (de) * 1984-06-26 1988-12-12 Ver Edelstahlwerke Ag Vorrichtung zum stranggiessen von metallischen schmelzen
DE3831595A1 (de) * 1988-09-14 1990-03-22 Mannesmann Ag Verfahren und vorrichtung einer horizontal-stranggiessvorrichtung fuer metalle
JPH02117748A (ja) * 1989-09-25 1990-05-02 Kawasaki Heavy Ind Ltd 水平連続鋳造装置
DE4325432A1 (de) * 1993-07-29 1995-02-02 Abb Patent Gmbh Regelsystem für eine Waagerecht-Strangguß-Anlage mit einem als Druckkammer ausgebildeten Warmhaltegefäß

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US311902A (en) * 1885-02-10 Stopper for ladles
US3685705A (en) * 1971-03-24 1972-08-22 James W Cessna Sliding gate valve having spring biased slide

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB801819A (en) * 1956-03-22 1958-09-24 Bram Joel Franklin Improvements in the continuous forming of molten materials

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US311902A (en) * 1885-02-10 Stopper for ladles
US3685705A (en) * 1971-03-24 1972-08-22 James W Cessna Sliding gate valve having spring biased slide

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4195685A (en) * 1976-12-22 1980-04-01 Abraimov Boris F Horizontal continuous casting apparatus
US4340110A (en) * 1979-07-10 1982-07-20 Nippon Kokan Kabushiki Kaisha Apparatus for connecting tundish and mold for horizontal continuous casting of metal
US5373890A (en) * 1991-09-06 1994-12-20 Mitsubishi Denki Kabushiki Kaisha Horizontal continuous casting method and its device

Also Published As

Publication number Publication date
FR2213121A1 (sv) 1974-08-02
AT333453B (de) 1976-11-25
JPS49134527A (sv) 1974-12-25
LU68739A1 (sv) 1974-06-21
ES420293A1 (es) 1976-03-01
IT998836B (it) 1976-02-20
DE2355015A1 (de) 1974-05-16
GB1437101A (en) 1976-05-26
FR2213121B1 (sv) 1975-04-25
ATA931073A (de) 1976-03-15
SE383272B (sv) 1976-03-08
BR7308394D0 (pt) 1974-08-15
AU6182773A (en) 1975-05-01
CA1005966A (en) 1977-03-01
BE806885A (fr) 1974-05-06

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