EP1225992B2 - Strip-casting machine for producing a metal strip - Google Patents

Strip-casting machine for producing a metal strip Download PDF

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Publication number
EP1225992B2
EP1225992B2 EP00964204A EP00964204A EP1225992B2 EP 1225992 B2 EP1225992 B2 EP 1225992B2 EP 00964204 A EP00964204 A EP 00964204A EP 00964204 A EP00964204 A EP 00964204A EP 1225992 B2 EP1225992 B2 EP 1225992B2
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EP
European Patent Office
Prior art keywords
casting
strip
casting rolls
sealing plate
rolls
Prior art date
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Expired - Lifetime
Application number
EP00964204A
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German (de)
French (fr)
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EP1225992A1 (en
EP1225992B1 (en
Inventor
Heinrich A. Marti
Jacques Barb
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Main Management Inspiration AG
SMS Siemag AG
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Main Management Inspiration AG
SMS Demag AG
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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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
    • 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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/0648—Casting surfaces
    • B22D11/066—Side dams
    • 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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/068—Accessories therefor for cooling the cast product during its passage through the mould surfaces
    • B22D11/0682—Accessories therefor for cooling the cast product during its passage through the mould surfaces by cooling the casting wheel
    • 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
    • B22D11/16—Controlling or regulating processes or operations

Definitions

  • the invention relates to a strip casting machine for producing a metal strip, with two juxtaposed, forming a casting gap casting rolls and with Seltenabdichtitch having on both sides of the casting rolls ever an engageable on the casting rolls sealing plate, wherein the respective sealing plate in such a way to the two Stirnselten the casting rolls It can be attracted that with her in the heated operating condition very accurate support on the front sides of the casting rolls is made possible, wherein the engagable or compressible to the casting rolls sealing plate is mounted floating in a three-dimensional movement direction on the piston.
  • JP 4-224052 A is known in a strip casting machine with two casting rolls to measure the frictional forces between a sealing plate and the end walls of the casting rolls and hiemach to change the contact forces on the sealing plate. This is to unsymmetrical wear on the sealing plate can be reduced and the risk of leakage of molten metal can be prevented.
  • the contact forces are transmitted to the sealing plate via three hydraulic cylinders.
  • the sealing plate is rigidly guided in an axial direction in a guide sleeve, which is disadvantageous.
  • the document EP 0 806 997 describes a two-roll casting installation.
  • the sealing plate for the two casting rolls consists of an upper and a lower part.
  • the lower sealing plate part is pressed with considerably higher pressure against the gusset of the end face of the two casting rolls than the upper part.
  • the upper sealing plate part is pressed against the rollers by means of three cylinders.
  • the applied cylinder pressure is evenly distributed over all cylinders.
  • the wear pattern of the sealing plate is inevitably uneven, even if a so-called spring return for the individual printing cylinder is provided as a restoring force. The risk of leaks due to premature wear of the sealing plates remains high.
  • the document EP 0 692 330 B1 deals with the strip casting between two casting rolls whose end faces are sealed by means of closure walls.
  • the friction conditions are measured and compared with predetermined setting values. The comparison results control at least one casting parameter.
  • the position of the closure wall can be controlled by means of the magnitude of the friction conditions.
  • the closure wall is held by an arrangement which consists of a movable in the roll direction main carriage and a secondary carriage, which is guided horizontally on the main carriage.
  • the closure wall can be adjusted in two levels to measure the pressure or forces on the closure wall in the vertical and horizontal directions.
  • this measuring arrangement does not eliminate the risk of leakage of the closure walls due to uneven wear.
  • Another document EP 0 698 433 B1 describes a twin-roll continuous casting machine with pressed-on side walls for continuous casting of thin metal strips.
  • the side walls are connected to a pressure plate and a support plate so that the side walls are movable in the axial direction to the casting rolls and perpendicular to this direction.
  • Between pressure plate and support plate several compression springs are inserted, which act on the side walls.
  • Each sidewall is surrounded by a chilled ring.
  • the pressure plate is carried by a carriage which is movable in the axial direction. On the carriage is an adjusting cylinder, which acts on the pressure plate.
  • this known construction is not able to sustainably prevent uneven wear of the side walls and to ensure the required tightness between casting rolls and side walls over several casting sequences.
  • the document WO 00/32 332 shows a Zweirolleng discerneinrichlung for producing a metal strip in which sealing plates are employed at the end faces of the casting rolls.
  • the dreierkförmigen sealing plates are pressurized by three Anstellzylindern attack each of the corner points.
  • the adjusting cylinders are supported against a stationary frame.
  • the document WO 96/20800 discloses a strip casting machine for producing a metal strip, with two juxtaposed, a casting gap forming casting rolls and with side seals which have on both sides of the casting rolls each one end face pressed against the casting rolls sealing plate, wherein the sealing plate so on the two end faces of Casting rollers can be pressed, that the sealing plate is mounted floating in a three-dimensional direction of movement on the piston.
  • the present invention has been based on the object to develop a strip casting machine according to the type mentioned in such a way that with her allows a required throughout the casting time tightness in the side seals and this when using an optimal casting roll diameter. Furthermore, it should be achieved with these side seals with her fast delivery and after replacement a reliable driving.
  • the support plate receiving the sealing plate is mounted via articulated joints on a connecting plate which is held floating on the support member, wherein the support frame is permanently pressed against the piston via an elastic connection between it and the connecting plate.
  • Designed as a hydraulic cylinder or spindle drive, adjusting and one at the other end of the casting roll engaging, for example, designed as a plunger pressure device comprises.
  • FIG. 1 shows a strip casting machine 20 of a metal strip 15, in particular a steel strip, which can be produced in a continuous casting process.
  • This strip casting machine 20 stands on an indicated steel structure 12 and is supplied with molten metal from a distributor vessel above it, as is known in conventional continuous casting plants.
  • the Verteilgelgeläss a closable with a stopper or the like spout opening through which the melt can flow.
  • this strip casting machine 20 has two substantially parallel juxtaposed casting rolls 22, 24 with approximately horizontal axis of rotation, with a side seal 25 can be pressed on both end faces, whereby an all-round closed opening is formed with a downwardly open casting gap.
  • the casting rolls 22, 24 are rotatably mounted on both sides on a respective machine stand 32 and are driven by a respective motor controlled.
  • the strip casting machine 20 standing on an indicated steel structure 12 or the like is enclosed by a housing 30, so that this strip casting can take place with a protective gas sealed by the air.
  • sliding doors 35 are available for opening or closing.
  • Each of these side seals 25 has a sealing plate 61, which can be pressed against the casting rolls 22, 24 by a contact pressure element, which produces a mechanical seal.
  • These triangular, consisting of a refractory material sealing plates 61 cover approximately the upper part of the end faces 22 ', 24' of the casting rolls.
  • the respective sealing plate 61 can be pressed against the two equilateral end faces 22 ', 24' in such a way that it allows a very exact support on the end faces of the casting rolls in the heated operating state.
  • the respective sealing plate 61 is slidably arranged for this purpose by the pressing means against the Giessrollen end faces 22 ', 24' and also via a hinge means, in this case via a ball joint 81, floatingly mounted to a constant lasting To achieve contact pressure and a precise parallel arrangement of its sealing surface 61 'to the two extending in a plane end faces of the casting rolls.
  • the pressing means has at least one, preferably three approximately perpendicular to the sealing plate 61 adjustable Anpresszylinder 71, each with a piston 72 which exercise in the manner of a three-point support via a support frame 64, 65 an approximately constant controllable contact pressure on the respective sealing plate 61, said pressure cylinder 71 suitably act on the basis of the arrangement of the casting rollers approximately triangular sealing plate 61 each in one of its corner regions.
  • the support frame 64, 65 receiving the sealing plate 61 is supported by hinges 66, 67 to a connecting plate 80, which in turn is floatingly supported by the ball joint 81 on the support member 41, 41 ', the support frame 64, 65 being resiliently connected, namely adjustable Tension spring 68 with armature, between it and the connecting plate 80 is permanently pressed against the piston 72 of the pressing means.
  • the joints are each arranged approximately horizontally and vertically Articulated lever 66, 67 are formed, these articulated levers 66, 67 are also spherically supported at one end to the support frame 64 and at the other end to the connecting plate 80, so that the sealing plate 61 can be moved parallel to the connecting plate 80 in three directions of movement. With this optimal storage of the sealing plate 61 can be permanently excluded even in the heated state of the entire side seal a terminal or lock the same in any case.
  • a projecting centering pin 82 is provided in the ball joint 81, by means of which a centering of the carrier element 41 to the device 86 can be accomplished.
  • An eccentric 83 or the like allows vertical centering of the side seal 25 to the support arm 41.
  • a flexible support member 84 is provided between the connection plate 80 and the head part 41 'of the support member 41.
  • the carrier element 41 holding the side seals 25 has listened to a manipulator 40, by means of which the respective side seal can be fed in and out laterally relative to the casting rolls 22, 24.
  • the side seals 25 are, after they have been supplied by the manipulator 40 in the position laterally of the casting rolls 22, 24, centered by a arranged on the machine stand 32 of the casting rolls device 85 and the cylinder 71 connected to a respective drive member, in the opposite direction, the side seals 25 be carried away from the manipulator for maintenance after the release of the device 85.
  • the device 85 is arranged in the stand 32; but it could also be present on the manipulator.
  • a monitoring and control system in these side seals 25 allows for optimal adjustment of the pressure on the sealing plate 61 pressing means and preventive monitoring and early detection of faults, leaks or the like with an on-line fault repair, especially in the sealing plate.
  • the casting roll 22 consists of a stationary axle 1 with axle journal 2, which in turn is supported on a stand 3.
  • the casting roll 22 comprises an annular support element 4, which is connected to the cylindrical shell 5 by means of a wedge bracing 6.
  • the jacket 5 is provided at its periphery with axially extending cooling holes 7, which with additional coolant supply and discharging bores 9, 10, 11 in the support member 4, in the axis 1 and in the stand 3 are in communication.
  • the jacket 5 and the support member 4 are rotatably supported by the bearings 8 on the axis 1 and are driven by a motor / gear device, not shown.
  • casting roll of the jacket 5 is slidably disposed together with the support member 4 on the stationary axis 1.
  • the displacement takes place with an annular, double-acting piston-cylinder unit 13, which is assigned to both the support member 4 and the axis 1 and is installed at the end of the casting roll 22.
  • a piston ring 14 on the support element 4 engages at a distance in a circumferential groove 16 of the axis 1, so that on both sides of the piston ring 14 cylinder chambers 17 are formed, which are each acted upon by a pressure medium via pressure lines with pressures p1 and p2.
  • an axial displacement of the support element 4 and thus the end face 22 'of the casting roll 22 is effected by, for example, 8 mm each to one side or the other.
  • a possibly second displacement device or a pressure device can also be arranged on the other casting roll end.
  • FIG. 5 An alternative embodiment of an adjusting device 13 is shown in Fig. 5.
  • the cylindrical cooled jacket 5 On the stationary roller axle 1, the cylindrical cooled jacket 5 is shown with its cooling holes 7.
  • the jacket 5 is supported on the axle 1 via support elements 4.
  • the one support element 4 ' is connected to the jacket 5 and is, for example, by means of a radial bearing 18 on the axis 1, rotatably supported.
  • the other support member 4 is connected to the axis 1, wherein the cylinder jacket 5, for example.
  • By means of a thrust bearing 19 is rotatably supported on the support member 4".
  • An electromagnetic brake 21 is arranged between the support elements 4 'and 4 "on the axis 1.
  • the axis 1 together with the cylinder 5 are in the axial direction Towards this end, on one side of the axle 1 engages an adjusting device 26 designed as a piston-cylinder unit 27 with a return spring 28. On the other side of the axle 1 is a pressure device 29, which, for example, acts as a double-acting plunger
  • the adjusting device can be designed to act as a spindle drive with the same effect, wherein the pressure device minimizes any possible mechanical play.
  • a side seal 25 may be provided, which includes a mechanical adjustment and / or a magnetic seal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Basic Packing Technique (AREA)
  • Coating With Molten Metal (AREA)
  • Induction Machinery (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

The invention relates to a strip-casting machine (20) for producing a metal strip. Said strip-casting machine consists of a pair of casting rolls (22, 24) arranged in side-by-side parallel relation with a casting gap thereinbetween and of lateral sealing elements (25) that are provided with respective sealing plates (61) at both sides of the casting rolls (22, 24) that are pushed or pressed against the casting rolls from the front by means of pushing or pressing means. The respective sealing plate (61) is pushed or pressed against the two equilateral front faces (22', 24') of the casting rolls (22, 24) in such a manner that, in the heated operational state, it facilitates an extremely exact positioning on the front faces of the casting rolls. To this end, the sealing plate (61) is mounted in such a manner as to allow a three-dimensional displacement of the sealing plate, as if floating.

Description

Die Erfindung bezieht sich auf eine Bandgiessmaschine zur Erzeugung eines Metallbandes, mit zwei nebeneinander angeordneten, einen Giessspalt bildenden Giessrollen sowie mit Seltenabdichtungen, die beidseits der Giessrollen je eine stimseitig an die Giessrollen anrückbare Dichtplatte aufweisen, wobei die jeweilige Dichtplatte derart an die beiden Stirnselten der Giessrollen anrückbar ist, dass mit ihr eine im erwärmten Betriebszustand sehr genaue Auflage an den Stirnseiten der Giessrollen ermöglicht wird, wobei die an die Giessrollen anstellbare oder anpressbare Dichtplatte in dreidimensionaler Bewegungsrichtung schwimmend auf Kolben gelagert ist.The invention relates to a strip casting machine for producing a metal strip, with two juxtaposed, forming a casting gap casting rolls and with Seltenabdichtungen having on both sides of the casting rolls ever an engageable on the casting rolls sealing plate, wherein the respective sealing plate in such a way to the two Stirnselten the casting rolls It can be attracted that with her in the heated operating condition very accurate support on the front sides of the casting rolls is made possible, wherein the engagable or compressible to the casting rolls sealing plate is mounted floating in a three-dimensional movement direction on the piston.

Bei einer gattungsmässigen Bandgiessmaschine nach der EP-A-0714 716 besteht die Einrichtung für die Seitenabdichtung der Giessrollen aus feuerfesten Dichtplatten, die jeweils gegen zwei auf der gleichen Seite befindlichen Stirnseiten der Giessrollen angepresst werden und mlt ihnen hierbei verhindert wird, dass die zwischen die Giessrollen eingefüllte Stahlschmelze seitlich wegfliessen kann, sondern wie in einer herkömmlichen Kokille ein Metallbad entsteht. Diese Dichtplatten sind während der Anpressung aufgrund der drehenden Giessrollen einem Reibungsverschleiss ausgesetzt und dies bei einervom Metallbad entstehenden starken Hitzebelastung. Die Dichtplatten sind mit einer Anpresseinrichtung verbunden, die so konstruiert ist, dass zwangsläufig ein nachteiliges Verschleissbild an den Dichtplatten entsteht. Es bleibt somit eines der Hauptprobleme bei einer solchen Giessmaschine ungelöst, dass die Seitenabdichtungen während der gesamten Giessdauer eine sichere Abdichtung bieten müssen.In a generic strip casting machine according to EP-A-0714 716, the device for the side sealing of the casting rolls of refractory sealing plates, which are pressed against two located on the same side faces of the casting rolls and mlt them is prevented here, that between the casting rolls filled molten steel can flow away laterally, but as in a conventional mold, a metal bath is formed. These sealing plates are subject to friction wear during pressing due to the rotating casting rolls and this at a strong heat load resulting from the metal bath. The sealing plates are connected to a pressing device, which is designed so that inevitably creates an adverse wear pattern on the sealing plates. It remains one of the main problems with such a casting machine unsolved that the side seals must provide a secure seal throughout the casting time.

Bei kleineren Giessrollen-Durchmessem zwischen ca. 500 und 800 Millimetern sind entsprechend kleinere Schmalseitenabdichtungen vorzusehen. Aufgrund des kleinen Metallbactvolumens entstehen jedoch unruhige Badspiegeloberflächen. Demgegenüber sind bei Giessrollen mit grösserem Durchmesser, bei ca. 1500 Millimetern, die Badspiegeloberflächen aufgrund des voluminöseren Bades ruhiger, was vorteilhaft ist. Dagegen sind grössere und aufwendigere Seitenabdichtungen erforderlich. Durch Fertigungs- und Montagetoleranzen und unterschiedliche Erwärmung der Giessrollen durch mögliche Ablagerungen ist es möglich, dass die Dichtkanten bzw. Dichtflächen der Rollen zueinander nicht genau in Linie stehen.For smaller casting roll diameters between approx. 500 and 800 millimeters, correspondingly smaller narrow side seals must be provided. However, due to the small volume of metal baffles, troubled bathroom mirror surfaces are created. In contrast, in casting rolls with a larger diameter, at about 1500 millimeters, the Badspiegeloberflächen due to the voluminöseren bath is quieter, which is advantageous. In contrast, larger and more expensive side seals are required. By manufacturing and assembly tolerances and different heating of the casting rolls by possible deposits, it is possible that the sealing edges or sealing surfaces of the rollers are not exactly in line with each other.

Aus der japanischen Offenlegungsschrift JP 4-224052 A ist bei einer Bandgiessmaschine mit zwei Giessrollen bekannt, die Reibungskräfte zwischen einer Dichtplatte und den Stimwänden der Giessrollen zu messen und hiemach die Anpresskräfte auf die Dichtplatte zu ändern. Hierdurch soll unsymmetrischer Verschleiss an der Dichtplatte vermindert werden und die Gefahr von Leckagen von geschmolzenem Metall verhindert werden. Die Anpresskräfte werden über drei Hydraulikzylinder auf die Dichtplatte übertragen. Die Dichtplatte ist starr in einer axialen Richtung in einer Führungshülse geführt, was nachteilig ist.From the Japanese patent application JP 4-224052 A is known in a strip casting machine with two casting rolls to measure the frictional forces between a sealing plate and the end walls of the casting rolls and hiemach to change the contact forces on the sealing plate. This is to unsymmetrical wear on the sealing plate can be reduced and the risk of leakage of molten metal can be prevented. The contact forces are transmitted to the sealing plate via three hydraulic cylinders. The sealing plate is rigidly guided in an axial direction in a guide sleeve, which is disadvantageous.

In dem Dokument EP 0 806 997 wird eine Zweiwalzen-Giessanlage beschrieben. Die Dichtplatte für die zwei Giesswalzen besteht aus einem oberen und einem unteren Teil. Der untere Dichtplattenteil wird mit erheblich höherem Druck gegen den Zwickel der Stimseite der beiden Giesswalzen gepresst als der obere Teil. Der obere Dichtplattenteil wird mittels dreier Zylinder gegen die Walzen gedrückt. Der aufgebrachte Zylinderdruck ist gleichmässig auf alle Zylinder verteilt. Das Verschleissbild der Dichtplatte ist zwangsläufig ungleichmäßig, auch wenn eine sogenannte Federrückführung für den einzelnen Druckzylinder als Rückstellkraft vorgesehen ist. Die Gefahr von Leckagen durch frühzeitigen Verschleiss der Dichtplatten bleibt hoch.The document EP 0 806 997 describes a two-roll casting installation. The sealing plate for the two casting rolls consists of an upper and a lower part. The lower sealing plate part is pressed with considerably higher pressure against the gusset of the end face of the two casting rolls than the upper part. The upper sealing plate part is pressed against the rollers by means of three cylinders. The applied cylinder pressure is evenly distributed over all cylinders. The wear pattern of the sealing plate is inevitably uneven, even if a so-called spring return for the individual printing cylinder is provided as a restoring force. The risk of leaks due to premature wear of the sealing plates remains high.

Das Dokument EP 0 692 330 B1 befasst sich mit dem Bandgiessen zwischen zwei Giesswalzen, deren Stirnseiten mittels Verschlusswänden abgedichtet sind. Zur permanenten Ermittlung des Berührungszustandes zwischen den Stirnseiten der Walzen und den Verschlusswänden werden die Reibungsbedingungen gemessen und mit vorgegebenen Einstellwerten verglichen. Mit den Vergleichsergebnissen wird wenigstens ein Giessparameter gesteuert. Auch kann die Stellung der Verschlusswand mittels der Grösse der Reibungsbedingungen gesteuert werden. Hierzu ist die Verschlusswand von einer Anordnung gehalten, die an einem in Walzenrichtung verschiebbaren Hauptschlitten und einem Sekundärschlitten besteht, der waagerecht am Hauptschlitten geführt ist. Damit kann die Verschlusswand in zwei Ebenen justiert werden, um den Druck bzw. die Kräfte auf die Verschlusswand in vertikaler und horizontaler Richtung zu messen. Diese Messanordnung beseitigt jedoch nicht die Gefahr von Undichtigkeiten der Verschlusswände infolge ungleichmässlgen Verschleisses.The document EP 0 692 330 B1 deals with the strip casting between two casting rolls whose end faces are sealed by means of closure walls. For permanent determination of the contact state between the end faces of the rollers and the closure walls, the friction conditions are measured and compared with predetermined setting values. The comparison results control at least one casting parameter. Also, the position of the closure wall can be controlled by means of the magnitude of the friction conditions. For this purpose, the closure wall is held by an arrangement which consists of a movable in the roll direction main carriage and a secondary carriage, which is guided horizontally on the main carriage. Thus, the closure wall can be adjusted in two levels to measure the pressure or forces on the closure wall in the vertical and horizontal directions. However, this measuring arrangement does not eliminate the risk of leakage of the closure walls due to uneven wear.

in einem weiteren Dokument EP 0 698 433 B1 ist eine Doppelroll-Stranggiessmaschine mit angedrückten Seitenwänden zum Stranggiessen dünner Metallbänder beschrieben. Die Seitenwände sind mit einer Druckplatte und einer Tragplatte verbunden, so dass die Seitenwände in axialer Richtung zu den Giesswalzen und senkrecht zu dieser Richtung beweglich sind. Zwischen Druckplatte und Tragplatte sind mehrere Druckfedern eingefügt, die auf die Seitenwände einwirken. Jede Seitenwand ist von einem gekühlten Ring umgeben. Die Druckplatte wird von einem Wagen getragen, der in axialer Richtung beweglich ist. Auf dem Wagen befindet sich ein Verstellzylinder, der an der Druckplatte angreift. Diese vorbekannte Konstruktion ist jedoch nicht in der Lage, eine ungleichmässige Abnutzung der Seitenwände nachhaltig zu verhindern und die erforderliche Dichtigkeit zwischen Giesswalzen und Seitenwänden über mehrere Giesssequenzen zu gewährleisten.Another document EP 0 698 433 B1 describes a twin-roll continuous casting machine with pressed-on side walls for continuous casting of thin metal strips. The side walls are connected to a pressure plate and a support plate so that the side walls are movable in the axial direction to the casting rolls and perpendicular to this direction. Between pressure plate and support plate several compression springs are inserted, which act on the side walls. Each sidewall is surrounded by a chilled ring. The pressure plate is carried by a carriage which is movable in the axial direction. On the carriage is an adjusting cylinder, which acts on the pressure plate. However, this known construction is not able to sustainably prevent uneven wear of the side walls and to ensure the required tightness between casting rolls and side walls over several casting sequences.

Das Dokument WO 00/32 332 zeigt eine Zweirollengießeinrichlung zur Erzeugung eines Metallbandes, bei der an die Stirnseiten der Gießrollen Dichtplatten angestellt werden. Die dreierkförmigen Dichtplatten werden von drei Anstellzylindern druckbeaufschlagt, die jeweils an den Eckpunkten angreifen. Die Anstellzylinder stützen sich dabei gegen einen stationären Rahmen ab. Diese Maßnahmen ermöglichen zwar eine räumliche Bewegung der Dichtplatten, verhindern aber nicht eine ungleichmäßige Druckausübung mit der Folge einer unerwünschten schnellen Abnutzung der Dichtflächen der Dichtplatten.The document WO 00/32 332 shows a Zweirollengießeinrichlung for producing a metal strip in which sealing plates are employed at the end faces of the casting rolls. The dreierkförmigen sealing plates are pressurized by three Anstellzylindern attack each of the corner points. The adjusting cylinders are supported against a stationary frame. Although these measures allow a spatial movement of the sealing plates, but do not prevent uneven pressure with the result of undesirable rapid wear of the sealing surfaces of the sealing plates.

Das Dokument WO 96/20800 offenbart eine Bandgießmaschine zur Erzeugung eines Metallbandes, mit zwei nebeneinander angeordneten, einen Gießspalt bildenden Gießrollen sowie mit Seitenabdichtungen, die beidseits der Gießrollen je eine stimseitig an die Gießrollen andrückbare Dichtplatte aufweisen, wobei die Dichtplatte derart an die beiden Stirnseiten der Gießrollen andrückbar ist, dass die Dichtplatte in dreidimensionaler Bewegungsrichtung schwimmend auf Kolben gelagert ist.The document WO 96/20800 discloses a strip casting machine for producing a metal strip, with two juxtaposed, a casting gap forming casting rolls and with side seals which have on both sides of the casting rolls each one end face pressed against the casting rolls sealing plate, wherein the sealing plate so on the two end faces of Casting rollers can be pressed, that the sealing plate is mounted floating in a three-dimensional direction of movement on the piston.

[0010] Ausgehend von diesen Voraussetzungen wurde der vorliegenden Erfindung die Aufgabe zugrunde gelegt, eine Bandgiessmaschine nach der eingangs erwähnten Gattung derart weiter zu entwickeln, dass mit Ihr eine während der gesamten Giessdauer erforderliche Dichtheit bei den Seitenabdichtungen ermöglicht wird und dies bei einem Einsatz eines optimalen Giessrollendurchmessers. Ferner soll mit ihr eine schnelle Zustellung und nach erfolgter Auswechslung eine betriebssichere Fahrweise mit diesen Seitenabdichtungen erzielt werden.Based on these requirements, the present invention has been based on the object to develop a strip casting machine according to the type mentioned in such a way that with her allows a required throughout the casting time tightness in the side seals and this when using an optimal casting roll diameter. Furthermore, it should be achieved with these side seals with her fast delivery and after replacement a reliable driving.

Die Aufgabe ist erfindungsgemäss dadurch gelöst, dass der die Dichtplatte aufnehmende Tragrahmen über Gelenkverbindungen an einer Verbindungsplatte gelagert ist, die am Trägerelement schwimmend gehalten ist, wobei der Tragrahmen über eine elastische Verbindung zwischen ihm und der Verbindungsplatte permanent an die Kolben angedrückt ist. Hierdurch wird eine auch im erwärmten Betriebszustand sehr genaue Auflage an den Stirnseiten der Giessrollen ermöglicht und der Verschlelss der Dichtplatte auf ein Minimum reduziert.The object is achieved according to the invention that the support plate receiving the sealing plate is mounted via articulated joints on a connecting plate which is held floating on the support member, wherein the support frame is permanently pressed against the piston via an elastic connection between it and the connecting plate. As a result, even in the heated operating condition very accurate support on the front sides of the casting rolls is made possible and reduces the Verschlelss the sealing plate to a minimum.

Bei einer sehr vorteilhaften Ausführung ist wenigstens eine der Giessrollen zur möglichst planen Ausrichtung ihrer Stirnseiten zueinander, insbesondere axial ausrichtbar und die Ausrichteinrichtung wenigstens eine an einem Ende einer Giessrolle angreifende, bspw. als Hydraulikzylinder oder als Spindeltrieb ausgebildete, Verstelleinrichtung und eine am anderen Ende der Giessrolle angreifende bspw. als Plunger ausgebildete Druckeinrichtung umfasst.In a very advantageous embodiment, at least one of the casting rolls for planning as possible plan their front sides to each other, in particular axially alignable and the alignment at least one attacking at one end of a casting roll, for example. Designed as a hydraulic cylinder or spindle drive, adjusting and one at the other end of the casting roll engaging, for example, designed as a plunger pressure device comprises.

Mit dieser erfindungsgemässen Bandgiessmaschine ergibt sich eine optimale Seitenabdichtung der Giessrollen, die auch eine einwandfreie und über die gesamte Giesszeit dauerhafte Funktionstüchtigkeit bei grossen Giessrollen im Durchmesserbereich von über einem Meter bietet.With this inventive strip casting machine results in an optimal side sealing of the casting rolls, which also provides a perfect and over the entire casting time lasting functionality for large casting rolls in the diameter range of over one meter.

Ein Ausführungsbeispiel der Erfindung sowie weitere Vorteile derselben sind nachfolgend anhand der Zeichnung näher erläutert. Es zeigt:

Fig.1
einen Querschnitt durch eine Bandgiessmaschine mit den erfindungsgemässen Seitenabdichtungen,
Fig.2
einen Längsschnitt durch eine Seitenabdichtung nach Fig.1,
Fig.3
einen Schnitt der Seitenabdichtung entlang der 4 Linie III - III gemäss Fig.2,
Fig.4
eine Vorrichtung zum axialen Verschieben des zylindrischen, gekühlten Mantels einer Giessrolle auf ihrer stationären Achse und
Fig.5
eine Vorrichtung zum axialen Verschieben der stillstehenden Achse einer Giessrolle mit auf der Achse drehendem Zylindermantel.
An embodiment of the invention and further advantages thereof are explained in more detail with reference to the drawing. It shows:
Fig.1
a cross section through a strip casting machine with the side seals according to the invention,
Fig.2
a longitudinal section through a side seal according to Figure 1,
Figure 3
a section of the side seal along the 4 line III - III according to Figure 2,
Figure 4
a device for axially displacing the cylindrical, cooled jacket of a casting roll on its stationary axis and
Figure 5
a device for axial displacement of the stationary axis of a casting roll with rotating on the axis of the cylinder jacket.

Fig.1 zeigt eine Bandgiessmaschine 20 eines in einem kontinuierlichen Giessverfahren erzeugbaren Metallbandes 15, insbesondere eines Stahlbandes. Diese Bandgiessmaschine 20 steht auf einer angedeuteten Stahlstruktur 12 und wird von einem über ihr stehenden Verteilergefäss mit Metallschmelze versorgt, wie dies bei an sich herkömmlichen Stranggiessanlagen bekannt ist. Zweckmässigerweise weist das Verteilergeläss eine mit einem Stopfen oder dergleichen verschliessbare Ausgussöffnung auf, durch welches die Schmelze abfliessen kann.1 shows a strip casting machine 20 of a metal strip 15, in particular a steel strip, which can be produced in a continuous casting process. This strip casting machine 20 stands on an indicated steel structure 12 and is supplied with molten metal from a distributor vessel above it, as is known in conventional continuous casting plants. Conveniently, the Verteilgelgeläss a closable with a stopper or the like spout opening through which the melt can flow.

Zur Hauptsache hat diese Bandgiessmaschine 20 zwei im wesentlichen parallel nebeneinander angeordnete Giessrollen 22, 24 mit annähernd horizontalem Drehachsenverlauf, wobei an beiden Stirnseiten je eine Seitenabdichtung 25 anpressbar ist, wodurch eine rundum geschlossene Öffnung mit einem nach unten hin offenen Giessspalt gebildet ist. Die Giessrollen 22, 24 sind beidseits auf je einem Maschinenständer 32 drehbar gelagert und von je einem Motor gesteuert angetrieben. Die auf einer angedeuteten Stahlstruktur 12 oder dergleichen stehende Bandgiessmaschine 20 ist hierbei von einem Gehäuse 30 umschlossen, so dass dieses Bandgiessen mit einem Schutzgas, von der Luft abgedichtet, erfolgen kann. Auf der Oberseite des Gehäuses 30 sind zu dessen Öffnung bzw. Schliessung Schiebetüren 35 vorhanden.For the main thing, this strip casting machine 20 has two substantially parallel juxtaposed casting rolls 22, 24 with approximately horizontal axis of rotation, with a side seal 25 can be pressed on both end faces, whereby an all-round closed opening is formed with a downwardly open casting gap. The casting rolls 22, 24 are rotatably mounted on both sides on a respective machine stand 32 and are driven by a respective motor controlled. The strip casting machine 20 standing on an indicated steel structure 12 or the like is enclosed by a housing 30, so that this strip casting can take place with a protective gas sealed by the air. On the upper side of the housing 30 sliding doors 35 are available for opening or closing.

Diese Seitenabdichtungen 25 weisen jeweils eine von einem Anpressmittel stirnseitig an die Giessrollen 22, 24 andrückbare Dichtplatte 61 auf, die eine mechanische Abdichtung erzeugen. Diese dreieckförmigen, aus einem feuerfesten Material bestehenden Dichtplatten 61 decken annähernd den oberen Teil der Stirnseiten 22', 24' der Giessrollen ab.Each of these side seals 25 has a sealing plate 61, which can be pressed against the casting rolls 22, 24 by a contact pressure element, which produces a mechanical seal. These triangular, consisting of a refractory material sealing plates 61 cover approximately the upper part of the end faces 22 ', 24' of the casting rolls.

Erfindungsgemäss ist die jeweilige Dichtplatte 61 derart an die beiden gleichseitigen Stirnseiten 22', 24' anpressbar, dass mit ihr eine im erwärmten Betriebszustand sehr genaue Auflage an den Stirnseiten der Giessrollen ermöglicht ist.According to the invention, the respective sealing plate 61 can be pressed against the two equilateral end faces 22 ', 24' in such a way that it allows a very exact support on the end faces of the casting rolls in the heated operating state.

Gemäss Fig.2 und Fig.3 ist die jeweilige Dichtplatte 61 zu diesem Zwekke von dem Anpressmittel gegen die Giessrollen-Stirnseiten 22', 24' verschiebbar angeordnet und ausserdem über ein Gelenkmittel, vorliegend über ein Kugelgelenk 81, schwimmend gelagert, um einen konstant bleibenden Anpressdruck und eine genaue parallele Anordnung ihrer Dichtfläche 61' zu den beiden in einer Ebene verlaufenden Stirnseiten der Giessrollen zu erzielen.According to Fig.2 and Figure 3, the respective sealing plate 61 is slidably arranged for this purpose by the pressing means against the Giessrollen end faces 22 ', 24' and also via a hinge means, in this case via a ball joint 81, floatingly mounted to a constant lasting To achieve contact pressure and a precise parallel arrangement of its sealing surface 61 'to the two extending in a plane end faces of the casting rolls.

Das Anpressmittel weist wenigstens eine, vorzugsweise drei annähernd rechtwinklig zur Dichtplatte 61 verstellbare Anpresszylinder 71 mit je einem Kolben 72 auf, welche in der Art einer Dreipunktauflage über einen Tragrahmen 64, 65 einen annähernd konstanten steuerbaren Anpressdruck auf die jeweilige Dichtplatte 61 ausüben, wobei diese Anpresszylinder 71 zweckmässigerweise die aufgrund der Anordnung der Giessrollen annähernd dreieckförmige Dichtplatte 61 jeweils in je einem ihrer Eckbereiche beaufschlagen.The pressing means has at least one, preferably three approximately perpendicular to the sealing plate 61 adjustable Anpresszylinder 71, each with a piston 72 which exercise in the manner of a three-point support via a support frame 64, 65 an approximately constant controllable contact pressure on the respective sealing plate 61, said pressure cylinder 71 suitably act on the basis of the arrangement of the casting rollers approximately triangular sealing plate 61 each in one of its corner regions.

Der die Dichtplatte 61 aufnehmende Tragrahmen 64, 65 ist über Gelenkverbindungen 66, 67 an einer Verbindungsplatte 80 gelagert, die ihrerseits durch das Kugelgelenk 81 am Trägerelement 41, 41' schwimmend gehalten ist, wobei derTragrahmen 64, 65 über eine elastische Verbindung, namentlich eine einstellbare Zugfeder 68 mit Anker, zwischen ihm und der Verbindungsplatte 80 permanent an die Kolben 72 der Anpressmittel angedrückt ist. Die Gelenkverbindungen sind von je einem annähernd horizontal und einem vertikal angeordneten Gelenkhebel 66, 67 gebildet, wobei diese Gelenkhebel 66, 67 am einen Ende am Tragrahmen 64 und am anderen Ende an der Verbindungsplatte 80 ebenfalls sphärisch gelagert sind, so dass sich die Dichtplatte 61 parallel zur Verbindungsplatte 80 in drei Bewegungsrichtungen bewegen lässt. Mit dieser optimalen Lagerung der Dichtplatte 61 kann auf jeden Fall ein Klemmen oder Sperren derselben auch im erwärmten Zustand der gesamten Seitenabdichtung dauerhaft ausgeschlossen werden.The support frame 64, 65 receiving the sealing plate 61 is supported by hinges 66, 67 to a connecting plate 80, which in turn is floatingly supported by the ball joint 81 on the support member 41, 41 ', the support frame 64, 65 being resiliently connected, namely adjustable Tension spring 68 with armature, between it and the connecting plate 80 is permanently pressed against the piston 72 of the pressing means. The joints are each arranged approximately horizontally and vertically Articulated lever 66, 67 are formed, these articulated levers 66, 67 are also spherically supported at one end to the support frame 64 and at the other end to the connecting plate 80, so that the sealing plate 61 can be moved parallel to the connecting plate 80 in three directions of movement. With this optimal storage of the sealing plate 61 can be permanently excluded even in the heated state of the entire side seal a terminal or lock the same in any case.

Ausserdem ist beim Kugelgelenk 81 ein vorstehender Zentrierzapfen 82 vorgesehen, mittels dem eine Zentrierung des Trägerelementes 41 zu der Einrichtung 86 bewerkstelligt werden kann. Ein Exzenter 83 oder dergleichen ermöglicht eine Vertikalzentrierung der Seitenabdichtung 25 zum Tragarm 41. Ein flexibles Halteelement 84 ist zwischen der Verbindungsplatte 80 und dem Kopfteil 41' des Trägerelementes 41 vorgesehen. Eine Anschlagschraube 86 an diesem Kopfteil 41' begrenzt den Schwenkbereich der Platte 80.In addition, a projecting centering pin 82 is provided in the ball joint 81, by means of which a centering of the carrier element 41 to the device 86 can be accomplished. An eccentric 83 or the like allows vertical centering of the side seal 25 to the support arm 41. A flexible support member 84 is provided between the connection plate 80 and the head part 41 'of the support member 41. A stop screw 86 on this head part 41 'limits the pivoting range of the plate 80.

In Fig.1 ist ferner noch verdeutlicht, dass das die Seitenabdichtungen 25 haltende Trägerelement 41 einem Manipulator 40 zugehört, mittels dem die jeweilige Seitenabdichtung seitlich zu den Giessrollen 22, 24 zu- bzw. weggeführtwerden kann. Die Seitenabdichtungen 25 werden, nachdem sie vom Manipulator 40 in die Stellung seitlich der Giessrollen 22, 24 zugeführt worden sind, von einer am Maschinenständer 32 der Giessrollen angeordneten Einrichtung 85 zentriert und deren Zylinder 71 mit einem jeweiligen Antriebsorgan verbunden, im umgekehrten Sinne können die Seitenabdichtungen 25 nach dem Lösen der Einrichtung 85 vom Manipulator für die Wartung weggeführt werden. Die Einrichtung 85 ist in dem Ständer 32 angeordnet; sie könnte aber auch am Manipulator vorhanden sein.In FIG. 1, it is further clarified that the carrier element 41 holding the side seals 25 has listened to a manipulator 40, by means of which the respective side seal can be fed in and out laterally relative to the casting rolls 22, 24. The side seals 25 are, after they have been supplied by the manipulator 40 in the position laterally of the casting rolls 22, 24, centered by a arranged on the machine stand 32 of the casting rolls device 85 and the cylinder 71 connected to a respective drive member, in the opposite direction, the side seals 25 be carried away from the manipulator for maintenance after the release of the device 85. The device 85 is arranged in the stand 32; but it could also be present on the manipulator.

Ein Überwachungs- und Regelungssystem bei diesen Seitenabdichtungen 25 ermöglicht eine optimale Einstellung der auf die Dichtplatte 61 drückenden Anpressmittel und eine präventive Überwachung und Früherkennung von Störungen, Leckagen oder ähnlichem mit einer on-line Störungsbehebung insbesondere bei der Dichtplatte.A monitoring and control system in these side seals 25 allows for optimal adjustment of the pressure on the sealing plate 61 pressing means and preventive monitoring and early detection of faults, leaks or the like with an on-line fault repair, especially in the sealing plate.

In Fig. 4 ist eine Vorrichtung zum axialen Verschieben und Ausrichten der abzudichtenden Stirnseiten 22' der Giessrollen 22 zueinander dargestellt. Die Giessrolle 22 besteht aus einer stillstehenden Achse 1 mit Achsenzapfen 2, der seinerseits auf einem Ständer 3 abgestützt ist. Die Giessrolle 22 umfasst ein ringförmiges Stützelement 4, welches mit dem zylinderförmigen Mantel 5 mittels einer Keilverspannung 6 verbunden ist. Der Mantel 5 ist an seinem Umfang mit axial verlaufenden Kühlbohrungen 7 versehen, welche mit weiteren Kühlmittel zu- und abführenden Bohrungen 9, 10, 11 im Stützelement 4, in der Achse 1 und im Ständer 3 in Verbindung stehen. Der Mantel 5 und das Stützelement 4 sind mit den Lagern 8 auf der Achse 1 drehbar gehalten und werden von einer nicht näher dargestellten Motor/Getriebe-Einrichtung angetrieben. Zwecks ebenflächiger Ausrichtung der Stirnflächen 22' der Giessrolle 22 zu den Stirnflächen der anderen, nicht dargestellten, Giessrolle ist der Mantel 5 zusammen mit dem Stützelement 4 auf der stillstehenden Achse 1 verschiebbar angeordnet. Die Verschiebung erfolgt mit einer ringförmigen, doppelt wirkenden Kolben-Zylinder-einheit 13, die sowohl dem Stützelement 4 als auch der Achse 1 zugeordnet ist und am Ende der Giessrolle 22 eingebaut ist. Ein Kolbenring 14 am Stützelement 4 greift mit Abstand in eine umlaufende Nut 16 der Achse 1 ein, so dass beidseits des Kolbenringes 14 Zylinderkammern 17 entstehen, die jeweils mit einem Druckmedium über Druckleitungen mit Drücken p1 und p2 beaufschlagt werden. Mit Hilfe eines Druckunterschiedes ± Δp wird eine axiale Verschiebung des Stützelementes 4 und damit der Stirnseite 22' der Giessrolle 22 um bspw. 8 mm jeweils zur einen oder anderen Seite bewirkt. Eine ggfs. zweite Verschiebeeinrichtung oder eine Druckeinrichtung kann auch am anderen Gießrollenende angeordnet sein.In Fig. 4, a device for axial displacement and alignment of the sealed end faces 22 'of the casting rolls 22 to each other is shown. The casting roll 22 consists of a stationary axle 1 with axle journal 2, which in turn is supported on a stand 3. The casting roll 22 comprises an annular support element 4, which is connected to the cylindrical shell 5 by means of a wedge bracing 6. The jacket 5 is provided at its periphery with axially extending cooling holes 7, which with additional coolant supply and discharging bores 9, 10, 11 in the support member 4, in the axis 1 and in the stand 3 are in communication. The jacket 5 and the support member 4 are rotatably supported by the bearings 8 on the axis 1 and are driven by a motor / gear device, not shown. For the purpose of planar alignment of the end faces 22 'of the casting roll 22 to the end faces of the other, not shown, casting roll of the jacket 5 is slidably disposed together with the support member 4 on the stationary axis 1. The displacement takes place with an annular, double-acting piston-cylinder unit 13, which is assigned to both the support member 4 and the axis 1 and is installed at the end of the casting roll 22. A piston ring 14 on the support element 4 engages at a distance in a circumferential groove 16 of the axis 1, so that on both sides of the piston ring 14 cylinder chambers 17 are formed, which are each acted upon by a pressure medium via pressure lines with pressures p1 and p2. With the aid of a pressure difference ± Δp, an axial displacement of the support element 4 and thus the end face 22 'of the casting roll 22 is effected by, for example, 8 mm each to one side or the other. A possibly second displacement device or a pressure device can also be arranged on the other casting roll end.

Eine alternative Ausbildung einer Verstelleinrichtung 13 ist in Fig. 5 dargestellt. Auf der stillstehenden Rollenachse 1 ist der zylindrische gekühlte Mantel 5 gezeigt mit seinen Kühlbohrungen 7. Der Mantel 5 ist über Stützelemente 4 auf der Achse 1 abgestützt. Das eine Stützelement 4' ist mit dem Mantel 5 verbunden und ist bspw. mittels eines Radiallagers 18 auf der Achse 1, drehbar gehalten. Das andere Stützelement 4" ist mit der Achse 1 verbunden, wobei der Zylindermantel 5 bspw. mittels eines Axiallagers 19 drehbar auf dem Stützelement 4" abgestützt ist. Zwischen den Stützelementen 4' und 4" ist auf der Achse 1 eine elektromagnetische Bremse 21 angeordnet. Zwecks ebenflächiger Ausrichtung der Stirnseiten 22' der Giessrolle 22 zu den Stirnseiten der anderen -nicht dargestellten- Giessrolle wird die Achse 1 zusammen mit dem Zylinder 5 in axialer Richtung verschoben. Hierzu greift an der einen Seite der Achse 1 eine bspw. als Kolben-Zylinder-Einheit 27 mit Rückstellfeder 28 ausgebildete Verstelleinrichtung 26 an. Auf der anderen Seite der Achse 1 befindet sich eine Druckeinrichtung 29, die bspw. als doppelt wirkender Plunger 33 ausgebildet ist. Die Verstelleinrichtung kann gleichwirkend als Spindelantrieb ausgebildet sein, wobei die Druckeinrichtung eventuelles mechanisches Spiel minimiert.An alternative embodiment of an adjusting device 13 is shown in Fig. 5. On the stationary roller axle 1, the cylindrical cooled jacket 5 is shown with its cooling holes 7. The jacket 5 is supported on the axle 1 via support elements 4. The one support element 4 'is connected to the jacket 5 and is, for example, by means of a radial bearing 18 on the axis 1, rotatably supported. The other support member 4 "is connected to the axis 1, wherein the cylinder jacket 5, for example. By means of a thrust bearing 19 is rotatably supported on the support member 4". An electromagnetic brake 21 is arranged between the support elements 4 'and 4 "on the axis 1. For the purpose of planar alignment of the end faces 22' of the casting roll 22 with the end faces of the other casting roll (not shown), the axis 1 together with the cylinder 5 are in the axial direction Towards this end, on one side of the axle 1 engages an adjusting device 26 designed as a piston-cylinder unit 27 with a return spring 28. On the other side of the axle 1 is a pressure device 29, which, for example, acts as a double-acting plunger The adjusting device can be designed to act as a spindle drive with the same effect, wherein the pressure device minimizes any possible mechanical play.

Die Erfindung ist mit den oben erläuterten Ausführungsbeispielen ausreichend dargetan. Sie liesse sich jedoch noch in anderen Varianten darstellen. So könnte eine Seitenabdichtung 25 vorgesehen sein, die eine mechanische Anstellung und/oder eine magnetische Abdichtung beinhaltet.The invention is sufficiently demonstrated with the embodiments explained above. However, it could be represented in other variants. Thus, a side seal 25 may be provided, which includes a mechanical adjustment and / or a magnetic seal.

Claims (8)

  1. Strip-casting machine for producing a metal strip, with two casting rolls (22, 24), which are arranged adjacent to one another and form a casting gap, as well as with lateral sealing elements (25), which have at either end of the casting rolls (22, 24) a respective sealing plate (61), whereby the respective sealing plate (61) is pressable at the end face (22', 24') against the casting rolls (22, 24) in such a manner that in the heated operating state a very precise contact with the end faces of the casting rolls is made possible it, whereby the sealing plate (61) placeable or pressable against the casting rolls (22, 24) is mounted to be floating in a three-dimensional movement direction at pistons,
    characterised in that
    a carrier frame (64, 65) receiving the sealing plate (61) is mounted by way of articulated connections (66, 67) at a connecting plate (80), which is held in floating manner by the carrier element (41, 41'), whereby the carrier frame (64, 65) is pressed permanently against the pistons (72) by way of a resilient connection (68) between it and the connecting plate (80).
  2. Strip-casting machine according to claim 1,
    characterized in that
    the articulated connections are each formed by an approximately horizontal and/or one or two vertically arranged articulated levers (66, 67), wherein these articulated levers (66, 67) are mounted at one end at the carrier frame (64) and at the other end at the connecting plate (80), wherein a spherical bearing is arranged at at least one end of the respective articulated lever (66, 67).
  3. Strip-casting machine according to claim 1 or 2,
    characterized in that
    the lateral seals (25) are centred in the setting laterally of the casting rolls (22, 24) by a device (85) arranged at a machine housing (32) of the casting rolls and their cylinders (71) are connected with a respective drive element.
  4. Strip-casting machine according to one of the preceding claims,
    characterized in that
    at least one of the casting rolls (22, 24) is especially adjustable axially for a plane arrangement of their end faces (22', 24') and the aligning device (13) comprises at least one adjusting device (26), which engages at one end of a casting roll (22) and is constructed as, for example a hydraulic cylinder or spindle drive (27), and a pressure device (29), which engages at the other end of the casting roll (22) and is constructed as, for example, a plunger (33).
  5. Strip-casting machine according to claim 4,
    characterized in that
    the adjusting device (26) and the pressure device (29) engage at the axle (1) of the casting roll (22).
  6. Strip-casting machine according to any one of the preceding claims,
    characterized in that
    in the case of a casting roll (22) comprising a stationary axle (1) and a cooled shell (5) constructed to be rotatable on this axle (1), the shell (5) is displaceable, preferably acting hydraulically, on the axle (1).
  7. Strip-casting machine according to claim 6,
    characterized in that
    the displacing device is arranged at at least one casting roll end and comprises a piston ring (14) associated with the shell (5) and an encircling groove (16), which is associated with the axle (1), for reception of the piston ring while forming two cylinder chambers (17).
  8. Strip-casting machine according to claim 6 or 7,
    characterized in that
    the cylinder chambers (17) of the displacing device can be loaded with hydraulic pressures (P1, P2) of different level.
EP00964204A 1999-09-24 2000-09-19 Strip-casting machine for producing a metal strip Expired - Lifetime EP1225992B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH175099 1999-09-24
CH01750/99A CH691574A5 (en) 1999-09-24 1999-09-24 The strip casting machine for producing a metal strip.
PCT/EP2000/009161 WO2001023122A1 (en) 1999-09-24 2000-09-19 Strip-casting machine for producing a metal strip

Publications (3)

Publication Number Publication Date
EP1225992A1 EP1225992A1 (en) 2002-07-31
EP1225992B1 EP1225992B1 (en) 2003-05-21
EP1225992B2 true EP1225992B2 (en) 2006-09-13

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EP99811003A Withdrawn EP1088609A1 (en) 1999-09-24 1999-11-03 Strip caster for producing a metal strip
EP00964203A Expired - Lifetime EP1227906B1 (en) 1999-09-24 2000-09-19 Method for operating a strip-casting machine used for producing a metal strip and a corresponding strip-casting machine
EP00964204A Expired - Lifetime EP1225992B2 (en) 1999-09-24 2000-09-19 Strip-casting machine for producing a metal strip

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EP99811003A Withdrawn EP1088609A1 (en) 1999-09-24 1999-11-03 Strip caster for producing a metal strip
EP00964203A Expired - Lifetime EP1227906B1 (en) 1999-09-24 2000-09-19 Method for operating a strip-casting machine used for producing a metal strip and a corresponding strip-casting machine

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US (2) US6651729B1 (en)
EP (3) EP1088609A1 (en)
KR (2) KR100741729B1 (en)
CN (2) CN1191897C (en)
AT (2) ATE240805T1 (en)
AU (2) AU7520900A (en)
CH (1) CH691574A5 (en)
DE (2) DE50002302D1 (en)
EA (2) EA003382B1 (en)
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ITMI20021505A1 (en) * 2002-07-10 2004-01-12 Danieli Off Mecc ROLLER SUPPORT DEVICE FOR CONTINUOUS CASTING OF METAL TAPE
ITMI20021853A1 (en) * 2002-08-27 2004-02-28 Danieli Off Mecc METAL BATH CONTAINMENT DEVICE BETWEEN I
CN100366364C (en) * 2003-07-01 2008-02-06 Sms迪马格股份公司 Method for operating a strip casting machine for producing a metal strip
CH696756A5 (en) * 2003-10-08 2007-11-30 Main Man Inspiration Ag A method of generating oscillating movements of side seals of a strip casting machine for producing a metal strip and a device for performing the method.
CN1329146C (en) * 2005-01-31 2007-08-01 宝山钢铁股份有限公司 Thin band continuous-casting sticking-roll on-line forecasting method
CN100368120C (en) * 2005-12-02 2008-02-13 重庆大学 Double roller continuous casting magnesium alloy thin strip casting device
KR100797240B1 (en) * 2006-12-27 2008-01-23 주식회사 포스코 Method for controlling strip wedge in strip casting process
DE102008010653B4 (en) 2008-02-22 2019-04-04 Outokumpu Nirosta Gmbh Method and two-roll casting machine for producing cast from a molten metal strip
US7888158B1 (en) 2009-07-21 2011-02-15 Sears Jr James B System and method for making a photovoltaic unit
KR101264232B1 (en) * 2009-12-28 2013-05-14 주식회사 포스코 Apparatus and method for controlling horizontal oscillation of edge dam in twin roll strip caster
US11027330B2 (en) 2016-08-10 2021-06-08 Nucor Corporation Method of thin strip casting
RU2726543C1 (en) * 2016-12-26 2020-07-14 Баошань Айрон Энд Стил Ко., Лтд. Side wall partition retaining device for continuous casting of thin strip with two rolls and method of installation thereof
CN111036865B (en) * 2020-01-10 2024-04-30 中冶赛迪技术研究中心有限公司 Electro-hydraulic direct-drive small square billet continuous casting crystallizer vibration driving device

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US5628359A (en) † 1994-11-30 1997-05-13 Usinor Sacilor Device for supporting a sidewall of a plant for the continuous twin-roll casting of metal strip
WO2000032332A1 (en) † 1998-12-03 2000-06-08 Usinor Device for pressing a side wall in an installation for continuous casting of metal strips between two drums against the planar surfaces of the drums

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EP1227906B1 (en) 2003-05-21
EP1225992A1 (en) 2002-07-31
EA003382B1 (en) 2003-04-24
KR20020063863A (en) 2002-08-05
ATE240805T1 (en) 2003-06-15
AU7520900A (en) 2001-04-30
EA003383B1 (en) 2003-04-24
ES2200937T5 (en) 2007-05-01
EA200200399A1 (en) 2002-10-31
KR20020063864A (en) 2002-08-05
CN1200786C (en) 2005-05-11
CN1376095A (en) 2002-10-23
EA200200398A1 (en) 2002-10-31
CN1191897C (en) 2005-03-09
AU7521000A (en) 2001-04-30
US6651729B1 (en) 2003-11-25
ES2200936T3 (en) 2004-03-16
KR100686518B1 (en) 2007-02-23
WO2001023121A1 (en) 2001-04-05
EP1225992B1 (en) 2003-05-21
WO2001023122A1 (en) 2001-04-05
KR100741729B1 (en) 2007-07-24
CH691574A5 (en) 2001-08-31
ATE240806T1 (en) 2003-06-15
DE50002296D1 (en) 2003-06-26
CN1376097A (en) 2002-10-23
EP1227906A1 (en) 2002-08-07
EP1088609A1 (en) 2001-04-04
ES2200937T3 (en) 2004-03-16
US6655447B1 (en) 2003-12-02
DE50002302D1 (en) 2003-06-26

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