[go: up one dir, main page]

EP0330646A1 - Method of continuously casting a thin strip or a thin slab, and device for carrying out the method - Google Patents

Method of continuously casting a thin strip or a thin slab, and device for carrying out the method Download PDF

Info

Publication number
EP0330646A1
EP0330646A1 EP89890013A EP89890013A EP0330646A1 EP 0330646 A1 EP0330646 A1 EP 0330646A1 EP 89890013 A EP89890013 A EP 89890013A EP 89890013 A EP89890013 A EP 89890013A EP 0330646 A1 EP0330646 A1 EP 0330646A1
Authority
EP
European Patent Office
Prior art keywords
casting
drum
casting drum
drums
pouring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP89890013A
Other languages
German (de)
French (fr)
Other versions
EP0330646B1 (en
Inventor
Hermann Rametsteiner
Karl Dr. Schwaha
Franz Dipl.-Ing. Hirschmanner
Heinz Dipl.-Ing. Bramerdorfer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Primetals Technologies Austria GmbH
Original Assignee
Voest Alpine Industrienlagenbau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Voest Alpine Industrienlagenbau GmbH filed Critical Voest Alpine Industrienlagenbau GmbH
Publication of EP0330646A1 publication Critical patent/EP0330646A1/en
Application granted granted Critical
Publication of EP0330646B1 publication Critical patent/EP0330646B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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

Definitions

  • the invention relates to a method for the continuous casting of a thin strip or a thin slab, in particular made of steel in a thickness between 1 and 20 mm, by pouring molten metal onto a drum surface of a first casting drum, forming a casting gap by means of a drum surface with the thickness of the
  • the second casting drum is arranged at a distance from the first casting drum, with strand shells being formed on the drum surfaces of the first and second casting drums by contact with the molten metal and formation of a sump between the two goat drums, and conveying them on the drum surfaces of the two Strand shells forming casting drums by rotating the first and second casting drums, and a device for carrying out the method with two casting drums delimiting a casting gap, a support frame which can be pivoted about the axis of a first casting drum by means of a pivoting device and in which the second casting drum is rotatably mounted, - a vessel which can be adjusted to the first casting drum with a pouring spout and -
  • AT-B - 331.435 describes how to apply melt to a rotating casting drum.
  • a complete solidification of the metal strip on the upwardly moving part of the casting drum must occur immediately after contact with the surface of the casting drum.
  • only extremely thin strips of aluminum can be produced. The thickness of the strips largely depends on the depth of the melt pool at the transition point to the drum surface.
  • the invention aims to avoid these disadvantages and has as its object to provide a method and an apparatus for carrying out the method of the types described in the introduction, which produce a strip in a thickness between 1 and 20 mm with high operational reliability for different metal or Allow steel qualities and different strip thicknesses, the strip being exactly the desired thickness.
  • This object is achieved in that the sump is formed at a distance from the pouring of the molten metal onto the drum surface of the first casting drum, between the sump and the pouring on the drum surface of the first casting drum, a strand shell of a predetermined thickness is formed and that the casting gap on the circumference the first casting drum is brought into a position in which the maximum length of the two strand shells formed on the drum surfaces corresponds in total to at least the thickness of the cast strip or slab.
  • a device of the type described at the outset for carrying out the method is characterized in that the pouring spout rests on the peripheral side of the first casting drum facing away from the second casting drum.
  • the mounting of the second casting drum in the support frame can advantageously be moved in the direction of and in the direction from the mounting of the first casting drum by means of an adjusting device.
  • the pivoting device expediently comprises a screw spindle acting on the support frame.
  • a preferred embodiment is characterized in that the pivoting device comprises an elastically deformable traction means which is fastened to the support frame at a distance from the axis of the first casting drum and which can be actuated by means of a pressure medium cylinder.
  • the pouring spout is expediently equipped with an overflow weir and the level of the melt level in the vessel can be adjusted with respect to the overflow weir.
  • the limiting devices are each advantageously formed by a plate that can be pressed laterally onto the end faces of the casting drums by means of an adjusting device.
  • the limiting devices are each formed by an endless belt that can be pressed against the end faces of the casting drums by means of a pressure plate, the limiting devices advantageously being provided with cooling.
  • At least one delimiting device is formed by a plate which is adapted to the drum surfaces of the casting drums and can be displaced along the latter by means of an actuating device.
  • the support frame can preferably be pivoted from the horizontal by approximately 80 ° while the casting gap is moved into a position inclined at approximately 80 °.
  • an inductor is expediently arranged between the pouring spout and the apex of the first casting drum or an inductor is arranged between the apex of the first casting drum and the casting gap.
  • FIG. 1 shows a schematically illustrated side view of a continuous casting plant
  • Fig. 2 shows a partially sectioned view in the direction of arrow II of Fig. 1.
  • 3 shows a detail of FIG. 1.
  • the continuous casting installation has a first casting drum 1, which is provided with an internal cooling system (not shown), which is rotatably mounted about a horizontal axis 2 and can be driven in the direction of arrow 4 by means of a drive 3.
  • the axis 2 is supported on the casting platform 5 by means of support rollers 6 rotatably mounted on the casting platform 5.
  • a support frame 10 engages on each of the two end faces 8, 9 of the first casting drum 1 and can be pivoted about the axis 2 of the first casting drum 1 by means of bearings 11.
  • the support frame 10 has on each end face 8, 9 of the first casting drum 1 lying and radially extending from the axis 2 of the first casting drum 1 frame 12, each in a disc-shaped end piece 13, which is arranged concentrically to the first casting drum 1 and which rests on two of the support rollers 6, pass over.
  • the frame 12 are rigidly connected to each other to the support frame 10 by means of cross members 12 '.
  • a flexible traction means acts on the outside, for example a band 14 or a rope, which is guided over a deflection roller 15 rotatably mounted on the casting platform 5 and is attached at its end to a piston rod 16 of a pressure medium cylinder 17.
  • the pressure medium cylinder 17 is articulated on the casting platform 5. When this pressure medium cylinder 17 is acted upon, the support frame 10 with the frame 12 can thus be pivoted about the axis 2 of the first casting drum 1 into the position shown in broken lines in FIG. 1.
  • a threaded spindle 18 is provided for each frame 12, which engages the frame 12 with one end.
  • a nut 19 which is articulated on the casting platform 5 and is penetrated by the threaded spindle 18 serves to be driven by means of a worm drive 20.
  • the frames 12 of the support frames 10 each hold a bearing 21 of a second casting drum 22, these bearings 21 being displaceable in the direction of the first casting drum 1 or in the opposite direction by means of pressure medium cylinders 23, which are each supported on the end crosshead 24 of the frame 12. This makes it possible to set a casting gap 25 of a predetermined size between the two casting drums 1 and 22.
  • a pouring spout 27 just below the apex 26 of a distributor 28 adjustable.
  • a dip pipe 29 of a pouring ladle 30 positioned above the distributor 28 opens into the distributor 28.
  • the distributor 28 and the pouring spout 27 are lined with refractory material 31.
  • the pouring spout 27 is equipped with an overflow weir 32.
  • the level 33 of the molten metal 34 poured into the distributor 28 lies at the height 35 of the overflow weir 32, so that a thin film 36 of molten metal 34 flows over the overflow weir 32 onto the drum surface 7 of the first casting drum 1.
  • a part of the molten metal solidifies on the casting drum 1, a strand shell 37 becoming increasingly thicker over the circumference of the casting drum.
  • a part of the still molten metal melt flows into the casting gap 25 formed by the two casting drums 1 and 22, where it forms a liquid sump 38 as a result of material jams.
  • a strand shell 39 likewise forms on the drum surface of the second casting drum 22 and is moved by means of a drive 40 to the casting gap 25 by rotating the second casting drum 22 in the opposite direction of rotation to the first casting drum 1 and the same or slightly different peripheral speed.
  • the casting gap 25 corresponds in its thickness 41 to the thickness 42 of the strip 43 drawn off.
  • the position of the casting gap 25 and the cooling of the casting drums are chosen such that the thicknesses 44, 45 are the same the casting drums 1 and 22 formed strand shells 37, 39 at the location of the casting gap 25 correspond in total to at least the thickness 42 of the strip 43 drawn off. This ensures that there is no longer any liquid core within the strip 43 which has been drawn off and that the strip 43 is supported after it has been removed from the casting drums 1 and 22 is only necessary for its management.
  • a lateral delimitation of the casting gap 25 can, as illustrated in FIG. 2 on the left half of the figure, be realized by a plate 46, optionally cooled, which can be pressed onto the end faces of the casting drums 1 and 22 in the region of the casting gap 25 and which are each on one end face of both casting drums 1 and 22 abrasive.
  • a pressure cylinder 47 for pressing the plate 46 against the end faces is articulated to the frame 12 of the support frame 10.
  • An embodiment shown in the right half of the figure in FIG. 2 for the lateral limitation of the casting gap has a continuous endless belt 48 which is pressed against the end faces of the casting drums 1 and 22 with a pressure plate 49 in the area of the casting gap 25.
  • the belt 48 rotates at approximately the circumferential speed of the casting drums 1 and 22. This avoids excessive grinding between the end faces of the casting drums 1 and 22 and the limiting device.
  • a cooling device 50 for the strip is shown schematically in FIG. 2.
  • the idler rollers 51 of the belt 48 are attached to the frame 12 of the support frame 10.
  • the position of the support frame 10 or its frame 12 is adjusted so that the thicknesses of the strand shells 37, 39 formed on the surfaces of the casting drums in the casting gap 25 total at least the thickness 42 of the finished strip 43 correspond.
  • the frames 12, as illustrated by dash-dotted lines in FIG. 1 can be inclined with their longitudinal axis 52 by approximately 80 ° with respect to the horizontal, ie The plane of connection of the axes of the two casting drums 1 and 22 can be moved from the horizontal plane to an approximately 80 ° inclined position.
  • inductors 53 can be arranged inside the first casting drum 1, which are then expediently provided in a stationary manner and depending on the length over which the liquid Metal melt 34 extends over the surface of the first casting drum, can be put into operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

Beim Stranggießen eines dünnen Bandes (43) wird Metallschmelze (34) auf eine Trommeloberfläche (7) einer ersten Gießtrommel (1) aufgegossen, ein Gießspalt (25) mittels einer mit ihrer Trommeloberfläche in der Dicke (42) des Bandes (43) von der ersten Gießtrommel (1) distanziert angeordneten zweiten Gießtrommel (22) gebildet, wobei sich an der Trommeloberfläche der ersten und zweiten Gießtrommel (1, 22) Strangschalen (37, 39) ausbilden. Um das Gießen von Bändern (43) in unterschiedlichen Dicken (42) zu ermöglichen, wird ein Sumpf (38) im Abstand vom Aufgießen der Metallschmelze (34) auf die Trommeloberfläche (7) der ersten Gießtrommel (1) gebildet, wird zwischen dem Sumpf (38) und dem Aufgießen auf der Trommeloberfläche (7) der ersten Gießtrommel (1) eine Strangschale vorbestimmter Dicke (45) gebildet und wird der Gießspalt (25) am Umfang der ersten Gießtrommel (1) in eine Stellung gebracht, in der die beiden an den Trommeloberflächen gebildeten Strangschalen (37, 39) in ihrer maximalen Dicke (44, 45) in Summe mindestens der Dicke (42) des gegossenen Bandes (43) bzw. der gegossenen Bramme entsprechen.During the continuous casting of a thin band (43), molten metal (34) is poured onto a drum surface (7) of a first casting drum (1), a casting gap (25) by means of a drum surface with the thickness (42) of the band (43) from the the first casting drum (1) is arranged at a distance from the second casting drum (22), strand shells (37, 39) being formed on the drum surface of the first and second casting drums (1, 22). In order to enable the casting of strips (43) in different thicknesses (42), a sump (38) is formed at a distance from the pouring of the molten metal (34) onto the drum surface (7) of the first casting drum (1) and is formed between the sump (38) and pouring on the drum surface (7) of the first casting drum (1) a strand shell of predetermined thickness (45) is formed and the casting gap (25) on the circumference of the first casting drum (1) is brought into a position in which the two strand shells (37, 39) formed on the drum surfaces correspond in their maximum thickness (44, 45) in total at least to the thickness (42) of the cast strip (43) or the cast slab.

Description

Die Erfindung betrifft ein Verfahren zum Stranggießen eines dünnen Bandes oder einer dünnen Bramme, insbesondere aus Stahl in einer Dicke zwischen 1 und 20 mm, durch Aufgießen von Metallschmelze auf eine Trommeloberfläche einer ersten Gießtrommel, Bilden eines Gießspaltes mittels einer mit ihrer Trommeloberfläche in der Dicke des Bandes bzw. des Stranges von der ersten Gießtrommel distanziert angeordneten zweiten Gießtrommel, wobei sich an den Trommeloberflächen der ersten und zweiten Gießtrommel durch Kontakt mit der Metallschmelze und Bildung eines Sumpfes zwischen den beiden Geißtrommeln Strangschalen ausbilden, und Fördern der sich hierbei auf den Trommeloberflächen der beiden Gießtrommeln bildenden Strangschalen durch Rotation der ersten und zweiten Gießtrommel, sowie eine Vorrichtung zur Durchführung des Verfahrens mit
- zwei einen Gießspalt begrenzenden Gießtrommeln,
- einem um die Achse einer ersten Gießtrommel mittels einer Schwenkeinrichtung schwenkbaren Stützgestell, in dem die zweite Gießtrommel drehbar gelagert ist,
- einem an die erste Gießtrommel mit einer Ausgießschnauze anstellbaren Gefäß und
- den Gießspalt zwischen der ersten und zweiten Gießtrommel seitlich abdeckenden Begrenzungseinrichtungen.The invention relates to a method for the continuous casting of a thin strip or a thin slab, in particular made of steel in a thickness between 1 and 20 mm, by pouring molten metal onto a drum surface of a first casting drum, forming a casting gap by means of a drum surface with the thickness of the The second casting drum is arranged at a distance from the first casting drum, with strand shells being formed on the drum surfaces of the first and second casting drums by contact with the molten metal and formation of a sump between the two goat drums, and conveying them on the drum surfaces of the two Strand shells forming casting drums by rotating the first and second casting drums, and a device for carrying out the method with
two casting drums delimiting a casting gap,
a support frame which can be pivoted about the axis of a first casting drum by means of a pivoting device and in which the second casting drum is rotatably mounted,
- a vessel which can be adjusted to the first casting drum with a pouring spout and
- The casting gap between the first and second casting drums laterally covering limiting devices.

Aus der EP-A - 0 154 250 sind ein Verfahren und eine Stranggießanlage dieser Art bekannt, mit der dünne Bänder bzw. dünne Brammen herstellbar sind. Die zweite Gießtrommel ist hierbei unmittelbar bei der Aufgießstelle der Schmelze auf die erste Gießtrommel vorgesehen, so daß der zwischen den Gießtrommeln entstehende flüssige Sumpf sich unmittelbar an der Aufgießstelle befindet. Die erste Gießtrommel ist entlang ihres Umfanges zusätzlich zur zweiten Gießtrommel von einer Reihe von Rollen umgeben, die für die Führung und Kühlung des gegossenen Stranges sorgen. Die Schmelzenzufuhr erfolgt hier an der sich aufwärts bewegenden Seite der sich drehenden ersten Gießtrommel. Der Strang weist über einen Großteil des Umfanges der ersten Gießtrommel noch einen flüssigen Kern auf. Die Erstreckung des flüssigen Kerns über die erste Gießtrommel bedingt eine aufwendige Konstruktion der bekannten Anlage, da der Strang in diesem Bereich besonders sorgfältig abgestützt und geführt werden muß.From EP-A-0 154 250 a method and a continuous caster of this type are known, with which thin strips or thin slabs can be produced. The second casting drum is provided directly at the pouring point of the melt onto the first casting drum, so that the liquid sump formed between the casting drums is located directly at the pouring point. In addition to the second casting drum, the circumference of the first casting drum is surrounded by a series of rollers which guide and cool the cast strand. The melt feed takes place here on the upwardly moving side of the rotating first casting drum. The strand still has a liquid core over a large part of the circumference of the first casting drum. The extension of the liquid core over the first casting drum requires a complex construction of the known system, since the strand must be supported and guided particularly carefully in this area.

Zudem besteht das Problem, daß an der sich aufwärts bewegenden Seite der ersten Gießtrommel für einen hinreichend großen ferrostatischen Druck gesorgt werden muß, um den innerhalb der Strangschale befindlichen Hohlraum mit flüssiger Schmelze gefüllt zu halten, insbesondere in dem sich aufwärts bewegenden Teil des Stranges. Dabei besteht die Gefahr eines Strangdurchbruches mit unkontrolliertem Austritt von Schmelze.In addition, there is the problem that a sufficiently large ferrostatic pressure must be provided on the upwardly moving side of the first casting drum in order to keep the cavity located within the strand shell filled with liquid melt, in particular in the upwardly moving part of the strand. There is a risk of a strand break with an uncontrolled escape of the melt.

Aus der EP-B - 0 040 072 ist es bekannt, zur Erzeugung sehr dünner Bänder - mit amorpher Erstarrung des Metalles - das flüssige Metall mit einer Gießtrommel nur in einer Dicke in Kontakt kommen zu lassen, bei der eine sofortige Durcherstarrung der Metallschicht an der Gießtrommeloberfläche gesichert ist. Die Dicke hängt somit von der Umfangsgeschwindigkeit der Gießtrommel und von den metallurgischen Eigenschaften der Schmelze ab. Ein Band etwas größerer Dicke, also im Bereich zwischen 1 und 20 mm, würde eine zu starke Abkühlung bzw. eine zu lange Kühlstrecke bedingen, um eine sofortige Durcherstarrung sicherzustellen und ist daher mit einer Anlage dieser Art nicht herstellbar.From EP-B - 0 040 072 it is known for the production of very thin strips - with amorphous solidification of the metal - to let the liquid metal come into contact with a casting drum only in a thickness in which an immediate solidification of the metal layer on the Casting drum surface is secured. The thickness therefore depends on the peripheral speed of the casting drum and on the metallurgical properties of the melt. A tape of somewhat greater thickness, i.e. in the range between 1 and 20 mm, would require too much cooling or a too long cooling section to ensure immediate solidification and can therefore not be produced with a system of this type.

In der AT-B - 331.435 ist beschrieben, auf eine rotierende Gießtrommel Schmelze aufzubringen. Auch hierbei muß eine völlige Erstarrung des Metallstreifens an dem sich aufwärts bewegenden Teil der Gießtrommel unmittelbar nach Kontakt mit der Oberfläche der Gießtrommel eintreten. Hierdurch sind nur äußerst dünne Bänder aus Aluminium herstellbar. Die Dicke der Bänder ist weitgehend von der Tiefe des Schmelzenbades an der Übergangsstelle zur Trommeloberfläche abhängig.AT-B - 331.435 describes how to apply melt to a rotating casting drum. Here, too, a complete solidification of the metal strip on the upwardly moving part of the casting drum must occur immediately after contact with the surface of the casting drum. As a result, only extremely thin strips of aluminum can be produced. The thickness of the strips largely depends on the depth of the melt pool at the transition point to the drum surface.

Die Erfindung bezweckt die Vermeidung dieser Nachteile und stellt sich die Aufgabe, ein Verfahren sowie eine Vorrichtung zur Durchführung des Verfahrens der eingangs beschriebenen Arten zu schaffen, die das Herstellen eines Bandes in einer Dicke zwischen 1 und 20 mm mit hoher Betriebssicherheit für unterschiedliche Metall- bzw. Stahlqualitäten und unterschiedliche Banddicken ermöglichen, wobei das Band genau die gewünschte Dicke aufweist.The invention aims to avoid these disadvantages and has as its object to provide a method and an apparatus for carrying out the method of the types described in the introduction, which produce a strip in a thickness between 1 and 20 mm with high operational reliability for different metal or Allow steel qualities and different strip thicknesses, the strip being exactly the desired thickness.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Sumpf im Abstand vom Aufgießen der Metallschmelze auf die Trommeloberfläche der ersten Gießtrommel gebildet wird, daß zwischen dem Sumpf und dem Aufgießen auf der Trommeloberfläche der ersten Gießtrommel eine Strangschale vorbestimmter Dicke gebildet wird und daß der Gießspalt am Umfang der ersten Gießtrommel in eine Stellung gebracht wird, in der die beiden an den Trommeloberflächen gebildeten Strangschalen in ihrer maximalen Dicke in Summe mindestens der Dicke des gegossenen Bandes bzw. der gegossenen Bramme entsprechen.This object is achieved in that the sump is formed at a distance from the pouring of the molten metal onto the drum surface of the first casting drum, between the sump and the pouring on the drum surface of the first casting drum, a strand shell of a predetermined thickness is formed and that the casting gap on the circumference the first casting drum is brought into a position in which the maximum length of the two strand shells formed on the drum surfaces corresponds in total to at least the thickness of the cast strip or slab.

Eine Vorrichtung der eingangs beschriebenen Art zur Durchführung des Verfahrens ist dadurch gekennzeichnet, daß die Ausgießschnauze an der von der zweiten Gießtrommel abgewendeten Umfangsseite der ersten Gießtrommel anliegt.A device of the type described at the outset for carrying out the method is characterized in that the pouring spout rests on the peripheral side of the first casting drum facing away from the second casting drum.

Zur Einstellung unterschiedlicher Banddicken ist vorteilhaft die Lagerung der zweiten Gießtrommel im Stützgestell in Richtung zur und in Richtung von der Lagerung der ersten Gießtrommel mittels einer Stelleinrichtung bewegbar.To set different strip thicknesses, the mounting of the second casting drum in the support frame can advantageously be moved in the direction of and in the direction from the mounting of the first casting drum by means of an adjusting device.

Die Schwenkeinrichtung umfaßt zweckmäßig eine am Stützgestell angreifende Schraubspindel.The pivoting device expediently comprises a screw spindle acting on the support frame.

Eine bevorzugte Ausführungsform ist dadurch gekennzeichnet, daß die Schwenkeinrichtung ein im Abstand von der Achse der ersten Gießtrommel am Stützgestell befestigtes elastisch verformbares Zugmittel umfaßt, das mittels eines Druckmittelzylinders betätigbar ist.A preferred embodiment is characterized in that the pivoting device comprises an elastically deformable traction means which is fastened to the support frame at a distance from the axis of the first casting drum and which can be actuated by means of a pressure medium cylinder.

Zweckmäßig ist die Ausgießschnauze mit einem Überlaufwehr ausgestattet und ist das Niveau des Schmelzenspiegels im Gefäß in bezug auf das Überlaufwehr einstellbar.The pouring spout is expediently equipped with an overflow weir and the level of the melt level in the vessel can be adjusted with respect to the overflow weir.

Zur Einstellung einer gleichmäßigen Bandbreite sind vorteilhaft die Begrenzungseinrichtungen jeweils von einer seitlich an die Stirnseiten der Gießtrommeln mittels einer Stelleinrichtung anpreßbaren Platte gebildet.To set a uniform band width, the limiting devices are each advantageously formed by a plate that can be pressed laterally onto the end faces of the casting drums by means of an adjusting device.

Nach einer bevorzugten Ausführungsform sind die Begrenzungseinrichtungen jeweils von einem gegen die Stirnseiten der Gießtrommeln mittels einer Andrückplatte anpreßbaren Endlos-Band gebildet, wobei zweckmäßig die Begrenzungseinrichtungen mit einer Kühlung versehen sind.According to a preferred embodiment, the limiting devices are each formed by an endless belt that can be pressed against the end faces of the casting drums by means of a pressure plate, the limiting devices advantageously being provided with cooling.

Zur Breitenverstellung des Gießspaltes ist vorteilhaft mindestens eine Begrenzungseinrichtung von einer den Trommeloberflächen der Gießtrommeln angepaßten und entlang dieser mittels einer Stelleinrichtung verschiebbaren Platte gebildet.It is advantageous to adjust the width of the casting gap at least one delimiting device is formed by a plate which is adapted to the drum surfaces of the casting drums and can be displaced along the latter by means of an actuating device.

Bevorzugt ist das Stützgestell um etwa 80° unter Bewegung des Gießspaltes von der Horizontalen in eine hierzu etwa 80° geneigte Lage schwenkbar.The support frame can preferably be pivoted from the horizontal by approximately 80 ° while the casting gap is moved into a position inclined at approximately 80 °.

Für größere Banddicken ist zweckmäßig zwischen der Ausgießschnauze und dem Scheitel der ersten Gießtrommel ein Induktor angeordnet bzw. zwischen dem Scheitel der ersten Gießtrommel und dem Gießspalt ein Induktor angeordnet.For larger strip thicknesses, an inductor is expediently arranged between the pouring spout and the apex of the first casting drum or an inductor is arranged between the apex of the first casting drum and the casting gap.

Die Erfindung ist anhand der Zeichnung näher erläutert, wobei Fig. 1 eine schematisch dargestellte Seitenansicht einer Stranggießanlage und Fig. 2 eine teilweise geschnittene Ansicht in Richtung des Pfeiles II der Fig. 1 zeigen. Fig. 3 zeigt ein Detail der Fig. 1.The invention is explained in more detail with reference to the drawing, in which Fig. 1 shows a schematically illustrated side view of a continuous casting plant and Fig. 2 shows a partially sectioned view in the direction of arrow II of Fig. 1. 3 shows a detail of FIG. 1.

Die Stranggießanlage weist eine mit einer nicht dargestellten Innenkühlung versehene erste Gießtrommel 1, die um eine horizontale Achse 2 drehbar gelagert und mittels eines Antriebes 3 in Richtung des Pfeiles 4 antreibbar ist, auf. Die Lagerung der Achse 2 an der Gießbühne 5 erfolgt über an der Gießbühne 5 drehbar gelagerte Stützrollen 6.The continuous casting installation has a first casting drum 1, which is provided with an internal cooling system (not shown), which is rotatably mounted about a horizontal axis 2 and can be driven in the direction of arrow 4 by means of a drive 3. The axis 2 is supported on the casting platform 5 by means of support rollers 6 rotatably mounted on the casting platform 5.

An jeder der beiden Stirnseiten 8, 9 der ersten Gießtrommel 1 greift ein Stützgestell 10 an, das mittels Lager 11 um die Achse 2 der ersten Gießtrommel 1 verschwenkbar ist. Das Stützgestell 10 weist an jeder Stirnseite 8, 9 der ersten Gießtrommel 1 liegende und sich radial von der Achse 2 der ersten Gießtrommel 1 weg erstreckende Rahmen 12 auf, die jeweils in ein scheibenförmiges, konzentrisch zur ersten Gießtrommel 1 angeordnetes Endstück 13, das jeweils auf zwei der Stützrollen 6 aufliegt, übergehen. Die Rahmen 12 sind mittels Querträger 12′ miteinander starr zu dem Stützgestell 10 verbunden. An jedem Endstück 13 greift außenseitig ein flexibles Zugmittel an, beispielsweise ein Band 14 oder ein Seil, welches über eine an der Gießbühne 5 drehbar gelagerte Umlenkrolle 15 geführt ist und mit seinem Ende an einer Kolbenstange 16 eines Druckmittelzylinders 17 befestigt ist. Der Druckmittelzylinder 17 ist an der Gießbühne 5 angelenkt. Bei Beaufschlagung dieses Druckmittelzylinders 17 kann somit das Stützgestell 10 mit den Rahmen 12 um die Achse 2 der ersten Gießtrommel 1 bis in die in Fig. 1 mit strichpunktierten Linien dargestellte Position verschwenkt werden.A support frame 10 engages on each of the two end faces 8, 9 of the first casting drum 1 and can be pivoted about the axis 2 of the first casting drum 1 by means of bearings 11. The support frame 10 has on each end face 8, 9 of the first casting drum 1 lying and radially extending from the axis 2 of the first casting drum 1 frame 12, each in a disc-shaped end piece 13, which is arranged concentrically to the first casting drum 1 and which rests on two of the support rollers 6, pass over. The frame 12 are rigidly connected to each other to the support frame 10 by means of cross members 12 '. At each end piece 13, a flexible traction means acts on the outside, for example a band 14 or a rope, which is guided over a deflection roller 15 rotatably mounted on the casting platform 5 and is attached at its end to a piston rod 16 of a pressure medium cylinder 17. The pressure medium cylinder 17 is articulated on the casting platform 5. When this pressure medium cylinder 17 is acted upon, the support frame 10 with the frame 12 can thus be pivoted about the axis 2 of the first casting drum 1 into the position shown in broken lines in FIG. 1.

Um diese Schwenkbewegung zu unterstützen, ist je Rahmen 12 eine Gewindespindel 18 vorgesehen, die mit einem Ende am Rahmen 12 angreift. Zum Antrieb der Gewindespindel 18 dient eine gelenkig an der Gießbühne 5 angeordnete, von der Gewindespindel 18 durchsetzte Mutter 19, die mittels eines Schneckenantriebes 20 antreibbar ist.To support this pivoting movement, a threaded spindle 18 is provided for each frame 12, which engages the frame 12 with one end. To drive the threaded spindle 18, a nut 19 which is articulated on the casting platform 5 and is penetrated by the threaded spindle 18 serves to be driven by means of a worm drive 20.

Die Rahmen 12 der Stützgestelle 10 dienen zur Aufnahme je einer Lagerung 21 einer zweiten Gießtrommel 22, wobei diese Lagerungen 21 mittels Druckmittelzylinder 23, die jeweils am endseitigen Querhaupt 24 der Rahmen 12 abgestützt sind, in Richtung zur ersten Gießtrommel 1 bzw. entgegengesetzt verschiebbar sind. Hierdurch ist es möglich, einen Gießspalt 25 vorbestimmter Größe zwischen den beiden Gießtrommeln 1 und 22 einzustellen.The frames 12 of the support frames 10 each hold a bearing 21 of a second casting drum 22, these bearings 21 being displaceable in the direction of the first casting drum 1 or in the opposite direction by means of pressure medium cylinders 23, which are each supported on the end crosshead 24 of the frame 12. This makes it possible to set a casting gap 25 of a predetermined size between the two casting drums 1 and 22.

An die sich bei Drehung der ersten Gießtrommel 1 aufwärts bewegende Trommeloberfläche 7 der ersten Gießtrommel 1 ist knapp unterhalb des Scheitels 26 eine Ausgießschnauze 27 eines Verteilers 28 anstellbar. In den Verteiler 28 mündet ein Tauchrohr 29 einer oberhalb des Verteilers 28 in Stellung gebrachten Gießpfanne 30. Der Verteiler 28 und die Ausgießschnauze 27 sind mit feuerfestem Material 31 ausgekleidet. Die Ausgießschnauze 27 ist mit einem Überlaufwehr 32 ausgestattet.On the drum surface 7 of the first casting drum 1 which moves upward when the first casting drum 1 rotates, there is a pouring spout 27 just below the apex 26 of a distributor 28 adjustable. A dip pipe 29 of a pouring ladle 30 positioned above the distributor 28 opens into the distributor 28. The distributor 28 and the pouring spout 27 are lined with refractory material 31. The pouring spout 27 is equipped with an overflow weir 32.

Das Niveau 33 der im Verteiler 28 eingegossenen Metallschmelze 34 liegt in Höhe 35 des Überlaufwehrs 32, so daß ein dünner Film 36 von Metallschmelze 34 über das Überlaufwehr 32 auf die Trommeloberfläche 7 der ersten Gießtrommel 1 fließt. An der Gießtrommel 1 kommt es zu einer Erstarrung eines Teiles der Metallschmelze, wobei sich eine über den Umfang der Gießtrommel zunehmend dicker werdende Strangschale 37 bildet. Ein Teil der noch flüssigen Metallschmelze fließt bis in den von den beiden Gießtrommeln 1 und 22 gebildeten Gießspalt 25 und bildet dort infolge Materialstaus einen flüssigen Sumpf 38.The level 33 of the molten metal 34 poured into the distributor 28 lies at the height 35 of the overflow weir 32, so that a thin film 36 of molten metal 34 flows over the overflow weir 32 onto the drum surface 7 of the first casting drum 1. A part of the molten metal solidifies on the casting drum 1, a strand shell 37 becoming increasingly thicker over the circumference of the casting drum. A part of the still molten metal melt flows into the casting gap 25 formed by the two casting drums 1 and 22, where it forms a liquid sump 38 as a result of material jams.

An der Trommeloberfläche der zweiten Gießtrommel 22 bildet sich ebenfalls eine Strangschale 39, die durch Drehen der zweiten Gießtrommel 22 in zur ersten Gießtrommel 1 entgegengesetzter Drehrichtung und gleicher oder geringfügig abweichender Umfangsgeschwindigkeit mittels eines Antriebes 40 zum Gießspalt 25 bewegt wird. Der Gießspalt 25 entspricht in seiner Dicke 41 der Dicke 42 des abgezogenen Bandes 43. Die Lage des Gießspaltes 25 und die Kühlung der Gießtrommeln (auch die zweite Gießtrommel kann mit einer Innenkühlung versehen sein) werden so gewählt, daß die Dicken 44, 45 der an den Gießtrommeln 1 und 22 gebildeten Strangschalen 37, 39 an der Stelle des Gießspaltes 25 in Summe mindestens der Dicke 42 des abgezogenen Bandes 43 entsprechen. Hierdurch wird sichergestellt, daß sich innerhalb des abgezogenen Bandes 43 kein flüssiger Kern mehr befindet und eine Abstützung des Bandes 43 nach Abziehen von den Gießtrommeln 1 und 22 nur zu dessen Führung notwendig ist.A strand shell 39 likewise forms on the drum surface of the second casting drum 22 and is moved by means of a drive 40 to the casting gap 25 by rotating the second casting drum 22 in the opposite direction of rotation to the first casting drum 1 and the same or slightly different peripheral speed. The casting gap 25 corresponds in its thickness 41 to the thickness 42 of the strip 43 drawn off. The position of the casting gap 25 and the cooling of the casting drums (the second casting drum can also be provided with internal cooling) are chosen such that the thicknesses 44, 45 are the same the casting drums 1 and 22 formed strand shells 37, 39 at the location of the casting gap 25 correspond in total to at least the thickness 42 of the strip 43 drawn off. This ensures that there is no longer any liquid core within the strip 43 which has been drawn off and that the strip 43 is supported after it has been removed from the casting drums 1 and 22 is only necessary for its management.

Eine seitliche Begrenzung des Gießspaltes 25 kann, wie in Fig. 2 an der linken Bildhälfte veranschaulicht, durch eine im Bereich des Gießspaltes 25 an die Stirnflächen der Gießtrommeln 1 und 22 anpreßbare, gegebenenfalls gekühlte Platte 46 verwirklicht sein, die an jeweils einer Stirnseite beider Gießtrommeln 1 und 22 schleifend anliegt. Ein Anpreßzylinder 47 zum Anpressen der Platte 46 an die Stirnseiten ist an dem Rahmen 12 des Stützgestelles 10 gelenkig befestigt.A lateral delimitation of the casting gap 25 can, as illustrated in FIG. 2 on the left half of the figure, be realized by a plate 46, optionally cooled, which can be pressed onto the end faces of the casting drums 1 and 22 in the region of the casting gap 25 and which are each on one end face of both casting drums 1 and 22 abrasive. A pressure cylinder 47 for pressing the plate 46 against the end faces is articulated to the frame 12 of the support frame 10.

Eine in Fig. 2 in der rechten Bildhälfte dargestellte Ausführungsform zur seitlichen Begrenzung des Gießspaltes weist ein umlaufendes endloses Band 48 auf, welches mit einer Andrückplatte 49 im Bereich des Gießspaltes 25 an die Stirnseiten der Gießtrommeln 1 und 22 angepreßt wird. Das Band 48 läuft etwa mit der Umfangsgeschwindigkeit der Gießtrommeln 1 und 22 um. Hierdurch wird ein allzu starkes Schleifen zwischen den Stirnseiten der Gießtrommeln 1 und 22 und der Begrenzungseinrichtung vermieden. Eine Kühleinrichtung 50 für das Band ist in Fig. 2 schematisch dargestellt. Die Umlaufrollen 51 des Bandes 48 sind am Rahmen 12 des Stützgestelles 10 befestigt.An embodiment shown in the right half of the figure in FIG. 2 for the lateral limitation of the casting gap has a continuous endless belt 48 which is pressed against the end faces of the casting drums 1 and 22 with a pressure plate 49 in the area of the casting gap 25. The belt 48 rotates at approximately the circumferential speed of the casting drums 1 and 22. This avoids excessive grinding between the end faces of the casting drums 1 and 22 and the limiting device. A cooling device 50 for the strip is shown schematically in FIG. 2. The idler rollers 51 of the belt 48 are attached to the frame 12 of the support frame 10.

Es ist für den Betrieb der Stranggießanlage wesentlich, daß die Lage des Stützgestelles 10 bzw. dessen Rahmen 12 so eingestellt wird, daß die Dicken der an den Oberflächen der Gießtrommeln gebildeten Strangschalen 37, 39 im Gießspalt 25 in Summe mindestens der Dicke 42 des fertigen Bandes 43 entsprechen. Um dies für unterschiedliche Banddicken und Metalle und Metallegierungen bzw. Gießgeschwindigkeiten sicherzustellen, sind die Rahmen 12, wie in Fig. 1 mit strichpunktierten Linien veranschaulicht, mit ihrer Längsachse 52 um etwa 80° gegenüber der Horizontalen neigbar, d.h. die Verbindungsebene der Achsen der beiden Gießtrommeln 1 und 22 ist von der Horizontalebene bis in eine etwa 80° hierzu geneigte Lage verbringbar.It is essential for the operation of the continuous caster that the position of the support frame 10 or its frame 12 is adjusted so that the thicknesses of the strand shells 37, 39 formed on the surfaces of the casting drums in the casting gap 25 total at least the thickness 42 of the finished strip 43 correspond. In order to ensure this for different strip thicknesses and metals and metal alloys or casting speeds, the frames 12, as illustrated by dash-dotted lines in FIG. 1, can be inclined with their longitudinal axis 52 by approximately 80 ° with respect to the horizontal, ie The plane of connection of the axes of the two casting drums 1 and 22 can be moved from the horizontal plane to an approximately 80 ° inclined position.

Um ein synchrones Mitbewegen von Metallschmelze 34 mit der auf der Oberfläche der ersten Gießtrommel 1 erstarrten Strangschale 37 sicherzustellen, können im Inneren der ersten Gießtrommel 1 Induktoren 53 angeordnet sein, die dann zweckmäßig ortsfest vorgesehen sind und je nach der Länge, über die sich die flüssige Metallschmelze 34 über die Oberfläche der ersten Gießtrommel erstreckt, in Betrieb setzbar sind.In order to ensure synchronous movement of molten metal 34 with the strand shell 37 solidified on the surface of the first casting drum 1, inductors 53 can be arranged inside the first casting drum 1, which are then expediently provided in a stationary manner and depending on the length over which the liquid Metal melt 34 extends over the surface of the first casting drum, can be put into operation.

Claims (13)

1. Verfahren zum Stranggießen eines dünnen Bandes (43) oder einer dünnen Bramme, insbesondere aus Stahl in einer Dicke zwischen 1 und 20 mm, durch Aufgießen von Metallschmelze (34) auf eine Trommeloberfläche (7) einer ersten Gießtrommel (1), Bilden eines Gießspaltes (25) mittels einer mit ihrer Trommeloberfläche in der Dicke (42) des Bandes (43) bzw. des Stranges von der ersten Gießtrommel (1) distanziert angeordneten zweiten Gießtrommel (22), wobei sich an den Trommeloberflächen der ersten und zweiten Gießtrommel (1, 22) durch Kontakt mit der Metallschmelze (34) und Bildung eines Sumpfes (38) zwischen den beiden Gießtrommeln (1, 22) Strangschalen (37, 39) ausbilden, und Fördern der sich hierbei auf den Trommeloberflächen der beiden Gießtrommeln bildenden Strangschalen (37, 39) durch Rotation der ersten und zweiten Gießtrommel (1, 22), dadurch gekennzeichnet, daß der Sumpf (38) im Abstand vom Aufgießen der Metallschmelze (34) auf die Trommeloberfläche (7) der ersten Gießtrommel (1) gebildet wird, daß zwischen dem Sumpf (38) und dem Aufgießen auf der Trommeloberfläche (7) der ersten Gießtrommel (1) eine Strangschale vorbestimmter Dicke (45) gebildet wird und daß der Gießspalt (25) am Umfang der ersten Gießtrommel (1) in eine Stellung gebracht wird, in der die beiden an den Trommeloberflächen gebildeten Strangschalen (37, 39) in ihrer maximalen Dicke (44, 45) in Summe mindestens der Dicke (42) des gegossenen Bandes (43) bzw. der gegossenen Bramme entsprechen.1. A process for the continuous casting of a thin strip (43) or a thin slab, in particular made of steel in a thickness between 1 and 20 mm, by pouring molten metal (34) onto a drum surface (7) of a first casting drum (1), forming one Pouring gap (25) by means of a second casting drum (22) spaced apart from the first casting drum (1) with its drum surface in the thickness (42) of the band (43) or the strand, whereby on the drum surfaces of the first and second casting drum ( 1, 22) by forming contact with the molten metal (34) and forming a sump (38) between the two casting drums (1, 22), forming strand shells (37, 39), and conveying the strand shells that form on the drum surfaces of the two casting drums ( 37, 39) by rotation of the first and second casting drums (1, 22), characterized in that the sump (38) at a distance from the pouring of the molten metal (34) onto the drum surface (7) of the first casting drum (1) is formed that between the sump (38) and the pouring on the drum surface (7) of the first casting drum (1) a strand shell of predetermined thickness (45) is formed and that the casting gap (25) on the circumference of the first casting drum (1) in a position is brought in which the two strand shells (37, 39) formed on the drum surfaces correspond in their maximum thickness (44, 45) in total to at least the thickness (42) of the cast strip (43) or the cast slab. 2. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1, mit
- zwei einen Gießspalt (25) begrenzenden Gießtrommeln (1, 22),
- einem um die Achse (2) einer ersten Gießtrommel (1) mittels einer Schwenkeinrichtung (17, 19) schwenkbaren Stützgestell (10), in dem die zweite Gießtrommel (22) drehbar gelagert ist,
- einem an die erste Gießtrommel (1) mit einer Ausgießschnauze (27) anstellbaren Gefäß (28) und
- den Gießspalt (25) zwischen der ersten und zweiten Gießtrommel (1, 22) seitlich abdeckenden Begrenzungseinrichtungen (46, 48),
dadurch gekennzeichnet, daß die Ausgießschnauze (27) an der von der zweiten Gießtrommel (22) abgewendeten Umfangsseite der ersten Gießtrommel (1) anliegt.2. Device for performing the method according to claim 1, with
two casting drums (1, 22) delimiting a casting gap (25),
a support frame (10) which can be pivoted about the axis (2) of a first casting drum (1) by means of a pivoting device (17, 19) and in which the second casting drum (22) is rotatably mounted,
- A to the first casting drum (1) with a pouring spout (27) adjustable vessel (28) and
- The casting gap (25) between the first and second casting drums (1, 22) laterally covering limiting devices (46, 48),
characterized in that the pouring spout (27) rests on the peripheral side of the first casting drum (1) facing away from the second casting drum (22). 3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Lagerung (21) der zweiten Gießtrommel (22) im Stützgestell (10) in Richtung zur und in Richtung von der Lagerung (11) der ersten Gießtrommel (1) mittels einer Stelleinrichtung (23) bewegbar ist.3. Apparatus according to claim 2, characterized in that the bearing (21) of the second casting drum (22) in the support frame (10) towards and in the direction of the bearing (11) of the first casting drum (1) by means of an actuating device (23 ) is movable. 4. Vorrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die Schwenkeinrichtung eine am Stützgestell (10) angreifende Schraubspindel (18) umfaßt.4. Apparatus according to claim 2 or 3, characterized in that the pivoting device comprises a screw spindle (18) engaging on the support frame (10). 5. Vorrichtung nach einem oder mehreren der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß die Schwenkeinrichtung ein im Abstand von der Achse (2) der ersten Gießtrommel (1) am Stützgestell (10) befestigtes elastisch verformbares Zugmittel (14) umfaßt, das mittels eines Druckmittelzylinders (17) betätigbar ist.5. The device according to one or more of claims 2 to 4, characterized in that the pivoting device comprises an elastically deformable traction means (14) at a distance from the axis (2) of the first casting drum (1) on the support frame (10), which means a pressure medium cylinder (17) can be actuated. 6. Vorrichtung nach einem oder mehreren der Ansprüche 2 bis 5, dadurch gekennzeichnet, daß die Ausgießschnauze (27) mit einem Überlaufwehr (32) ausgestattet ist und das Niveau (33) des Schmelzenspiegels im Gefäß (28) in bezug auf das Überlaufwehr (32) einstellbar ist.6. The device according to one or more of claims 2 to 5, characterized in that the pouring spout (27) is equipped with an overflow weir (32) and the level (33) of the melt level in the vessel (28) with respect to the overflow weir (32 ) is adjustable. 7. Vorrichtung nach einem oder mehreren der Ansprüche 2 bis 6, dadurch gekennzeichnet, daß die Begrenzungseinrichtungen jeweils von einer seitlich an die Stirnseiten der Gießtrommeln (1, 22) mittels einer Stelleinrichtung (47) anpreßbaren Platte (46) gebildet sind.7. The device according to one or more of claims 2 to 6, characterized in that the limiting devices are each formed by a plate (46) which can be pressed laterally onto the end faces of the casting drums (1, 22) by means of an adjusting device (47). 8. Vorrichtung nach einem oder mehreren der Ansprüche 2 bis 6, dadurch gekennzeichnet, daß die Begrenzungseinrichtungen jeweils von einem gegen die Stirnseiten der Gießtrommeln (1, 22) mittels einer Andrückplatte (49) anpreßbaren Endlos-Band (48) gebildet sind.8. The device according to one or more of claims 2 to 6, characterized in that the limiting devices are each formed by an endless belt (48) which can be pressed against the end faces of the casting drums (1, 22) by means of a pressure plate (49). 9. Vorrichtung nach einem oder mehreren der Ansprüche 2 bis 6, dadurch gekennzeichnet, daß mindestens eine Begrenzungseinrichtung von einer den Trommeloberflächen (7) der Gießtrommeln (1, 22) angepaßten und entlang dieser mittels einer Stelleinrichtung (47) verschiebbaren Platte (46′) gebildet ist.9. The device according to one or more of claims 2 to 6, characterized in that at least one limiting device of one of the drum surfaces (7) of the casting drums (1, 22) adapted and along this by means of an adjusting device (47) displaceable plate (46 ') is formed. 10.Vorrichtung nach einem oder mehreren der Ansprüche 2 bis 8, dadurch gekennzeichnet, daß die Begrenzungseinrichtungen (46, 48) mit einer Kühlung (50) versehen sind.10.The device according to one or more of claims 2 to 8, characterized in that the limiting devices (46, 48) are provided with a cooling (50). 11.Vorrichtung nach einem oder mehreren der Ansprüche 2 bis 10, dadurch gekennzeichnet, daß das Stützgestell (10) um etwa 80° unter Bewegung des Gießspaltes (25) von der Horizontalen in eine hierzu etwa 80° geneigte Lage schwenkbar ist.11.The device according to one or more of claims 2 to 10, characterized in that the support frame (10) by about 80 ° with movement of the pouring gap (25) from the horizontal in an approximately 80 ° inclined position is pivotable. l2.Vorrichtung nach einem oder mehreren der Ansprüche 2 bis 11, dadurch gekennzeichnet, daß zwischen der Ausgießschnauze (27) und dem Scheitel (26) der ersten Gießtrommel (1) ein Induktor (53) angeordnet ist.12. Device according to one or more of claims 2 to 11, characterized in that an inductor (53) is arranged between the pouring spout (27) and the apex (26) of the first casting drum (1). 13.Vorrichtung nach einem oder mehreren der Ansprüche 2 bis 12, dadurch gekennzeichnet, daß zwischen dem Scheitel (26) der ersten Gießtrommel (1) und dem Gießspalt (25) ein Induktor (53) angeordnet ist.13.The device according to one or more of claims 2 to 12, characterized in that an inductor (53) is arranged between the apex (26) of the first casting drum (1) and the casting gap (25).
EP89890013A 1988-01-26 1989-01-19 Method of continuously casting a thin strip or a thin slab, and device for carrying out the method Expired - Lifetime EP0330646B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3802202A DE3802202A1 (en) 1988-01-26 1988-01-26 METHOD FOR CONTINUOUSLY casting a thin band or slab, and device for carrying out the method
DE3802202 1988-01-26

Publications (2)

Publication Number Publication Date
EP0330646A1 true EP0330646A1 (en) 1989-08-30
EP0330646B1 EP0330646B1 (en) 1990-10-31

Family

ID=6345995

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89890013A Expired - Lifetime EP0330646B1 (en) 1988-01-26 1989-01-19 Method of continuously casting a thin strip or a thin slab, and device for carrying out the method

Country Status (6)

Country Link
US (2) US4960164A (en)
EP (1) EP0330646B1 (en)
JP (1) JP2930597B2 (en)
DE (1) DE3802202A1 (en)
ES (1) ES2019139B3 (en)
GR (1) GR3001402T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT397478B (en) * 1991-10-03 1994-04-25 Voest Alpine Stahl METHOD AND DEVICE FOR CONTINUOUSLY CASTING A THIN STRIP OR A THIN SLAM

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1290603B1 (en) * 1997-05-02 1998-12-10 Voest Alpine Ind Anlagen CASTING CYLINDER
CN100400198C (en) * 2003-08-07 2008-07-09 李华伦 Magnesium sheet strip twin-roller high-speed continuous casting production line
CN1647870B (en) * 2004-01-20 2010-04-14 李华伦 Metal thin plate double roller acynchronous casting and rolling mill
US20080088065A1 (en) * 2006-10-12 2008-04-17 Fujifilm Corporation Cellulose resin film, method for producing the same and film product thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2693012A (en) * 1950-09-08 1954-11-02 Gen Motors Corp Method and apparatus for manufacturing sheet material
US3817317A (en) * 1972-07-20 1974-06-18 Collins S Four-high roll casting machine
EP0154250A2 (en) * 1984-03-01 1985-09-11 Concast Service Union Ag Method and apparatus for the continuous casting of metals between two cooled drums with parallel axes
DE3725010C1 (en) * 1987-07-29 1988-09-29 Krupp Stahl Ag Process for producing thin metal strips

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2450428A (en) * 1944-03-23 1948-10-05 Clarence W Hazelett Strip forming apparatus
AT331435B (en) * 1972-05-18 1976-08-25 Alcan Res & Dev PROCESS FOR MANUFACTURING CAST METAL STRIPS
YU43229B (en) * 1980-05-09 1989-06-30 Battelle Development Corp Device for continuous band casting
JPS58209451A (en) * 1982-05-31 1983-12-06 Mitsubishi Heavy Ind Ltd Continuous casting method of thin plate
JPS5997743A (en) * 1982-11-26 1984-06-05 Furukawa Battery Co Ltd:The Production of grid base plate for lead storage battery
JPS61229445A (en) * 1985-04-03 1986-10-13 Ishikawajima Harima Heavy Ind Co Ltd Continuous casting method and equipment
JPS61253149A (en) * 1985-04-12 1986-11-11 Nippon Kinzoku Kogyo Kk Production equipment for continuous casting of thin metal sheets
JPS6238745A (en) * 1985-08-13 1987-02-19 Nippon Yakin Kogyo Co Ltd Method and apparatus for direct production of thin metallic sheet
JPS63101056A (en) * 1986-10-17 1988-05-06 Kawasaki Steel Corp Method and apparatus for producing rapidly cooled metal strip
DE3721510A1 (en) * 1987-06-30 1989-01-19 Fink Gerdinand Apparatus and method for the strip casting of steel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2693012A (en) * 1950-09-08 1954-11-02 Gen Motors Corp Method and apparatus for manufacturing sheet material
US3817317A (en) * 1972-07-20 1974-06-18 Collins S Four-high roll casting machine
EP0154250A2 (en) * 1984-03-01 1985-09-11 Concast Service Union Ag Method and apparatus for the continuous casting of metals between two cooled drums with parallel axes
DE3725010C1 (en) * 1987-07-29 1988-09-29 Krupp Stahl Ag Process for producing thin metal strips

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 10, Nr. 100 (M-470)[2157], 16. April 1986; & JP-A-60 234 744 (ISHIKAWAJIMA HARIMA JUKOGYO K.K.) 21-11-1985 *
PATENT ABSTRACTS OF JAPAN, Band 10, Nr. 81 (M-465)[2138], 29. März 1986; & JP-A-60 221 155 (ISHIKAWAJIMA HARIMA JUKOGYO K.K.) 05-11-1985 *
PATENT ABSTRACTS OF JAPAN, Band 9, Nr. 264 (M-423)[1987], 22. Oktober 1985; & JP-A-60 111 743 (MITSUBISHI JUKOGYO K.K.) 18-06-1985 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT397478B (en) * 1991-10-03 1994-04-25 Voest Alpine Stahl METHOD AND DEVICE FOR CONTINUOUSLY CASTING A THIN STRIP OR A THIN SLAM

Also Published As

Publication number Publication date
GR3001402T3 (en) 1992-09-25
EP0330646B1 (en) 1990-10-31
US5035279A (en) 1991-07-30
DE3802202A1 (en) 1989-08-03
DE3802202C2 (en) 1992-11-12
US4960164A (en) 1990-10-02
JPH01224146A (en) 1989-09-07
ES2019139B3 (en) 1991-06-01
JP2930597B2 (en) 1999-08-03

Similar Documents

Publication Publication Date Title
DE69706510T2 (en) Method and device for casting metal strips
DE69827602T2 (en) Metal strip casting plant and process
DE60030331T2 (en) BAND CASTING
DE10042078A1 (en) Method and device for the continuous casting of steel strip from molten steel
EP0114293B1 (en) Method of and installation for adjusting the taper of small face walls of continuous-casting ingots
DE4313041C2 (en) Pouring metal tape
DE69912027T2 (en) strip casting plant
DE3142099A1 (en) METHOD AND DEVICE FOR CONTINUOUSLY CASTING METAL UNDER CONTROLLED LOAD
EP0450391B1 (en) Apparatus for guiding a continuously cast metal strand, particularly for soft reduction in a strip casting plant
DE3440236C2 (en)
EP0330646B1 (en) Method of continuously casting a thin strip or a thin slab, and device for carrying out the method
EP3993921B1 (en) Melt supply for strip casting systems
EP0102345B1 (en) Ingot mould for a continuous-casting plant
DE19852275C2 (en) Belt casting plant and method
DE2853868C2 (en) Process for the continuous casting of steel as well as the correspondingly produced steel strand
EP1070559B1 (en) Method for changing the cross-sectional format of a strand in a continuous casting machine during operation
DE19639299C2 (en) Device for producing a polygonal or profile format in a continuous caster
EP1385656B1 (en) Method for continuously casting ingots, slabs or thin slabs
DE4234135C2 (en) Method and device for horizontal continuous casting
DE19638101B4 (en) tape casting
DE3802203C2 (en)
DE69621657T2 (en) CONTINUOUS CASTING MACHINE WITH A ROTATING WHEEL
EP0679460B1 (en) Adjustable electromagnetic continuous casting mould
AT406745B (en) METHOD AND DEVICE FOR CHANGING THE THICKNESS OF A STRAND
DE3028247A1 (en) DEVICE FOR PRODUCING IRON STARTING MATERIALS

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE CH ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19891002

17Q First examination report despatched

Effective date: 19900208

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE CH ES FR GB GR IT LI LU NL SE

ET Fr: translation filed
ITF It: translation for a ep patent filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GR

Ref legal event code: FG4A

Free format text: 3001402

ITTA It: last paid annual fee
EPTA Lu: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 89890013.9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 20001201

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20001212

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GR

Payment date: 20001221

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20001222

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20001227

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20010103

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20010118

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20010122

Year of fee payment: 13

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020119

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020119

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020120

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020131

BERE Be: lapsed

Owner name: VOEST-ALPINE INDUSTRIEANLAGENBAU G.M.B.H.

Effective date: 20020131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020801

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020812

EUG Se: european patent has lapsed

Ref document number: 89890013.9

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20020119

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020930

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20020801

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20021230

Year of fee payment: 15

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20031022

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040131

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040131

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050119