EP3661671B1 - Mount for a segment in a strand guide and strand guide - Google Patents

Mount for a segment in a strand guide and strand guide Download PDF

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Publication number
EP3661671B1
EP3661671B1 EP18733868.6A EP18733868A EP3661671B1 EP 3661671 B1 EP3661671 B1 EP 3661671B1 EP 18733868 A EP18733868 A EP 18733868A EP 3661671 B1 EP3661671 B1 EP 3661671B1
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EP
European Patent Office
Prior art keywords
segment
mount
bearing
strand guide
strand
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EP18733868.6A
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German (de)
French (fr)
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EP3661671A1 (en
Inventor
Ulrich Kerp
Axel Stavenow
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SMS Group GmbH
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SMS Group GmbH
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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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
    • 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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
    • B22D11/1282—Vertical casting and curving the cast stock to the horizontal

Definitions

  • the invention relates to a mounting for a segment in a strand guide below the mold of a continuous slab caster.
  • the strand guide and its segments are used to guide a cast strand from the mold into the horizontal.
  • the invention also relates to a strand guide with the storage according to the invention.
  • the invention is used in slab or thin slab continuous casting plants in the forms of arched plant, vertical bending plant or vertical plant.
  • bearings for segments in a strand guide are known in principle.
  • the thermal expansion of a segment in the continuous caster can lead to undesirable stresses during the casting operation, especially if the segment is completely clamped in place.
  • it is, for example, from the international patent application WO 2011/131435 known to design the four support points of a segment on a segment carrier of a strand guide differently with regard to their respective degrees of freedom.
  • the international patent application provides for the segment to be firmly anchored only at a first of the support points.
  • a second support point allows the segment to be displaced transversely to the casting direction and the two remaining of the four support points ensure a displacement of the segment in all other directions.
  • the segment itself is basically still mounted in a stationary manner on the segment carrier; at the same time, however, a thermal expansion of the segment is advantageously taken into account.
  • the EP 2 648 864 B1 discloses all features of the preamble of claim 1.
  • the bearing according to the invention is characterized in that the floating bearing has a rotary bearing for pivoting the segment about the y-axis.
  • the coordinate system given in the figure applies to the definition of the x, y and z directions.
  • z denotes the vertical and x and y span a plane in the horizontal.
  • y denotes the width direction of the strand and x the direction perpendicular to the broad surface of the cast strand.
  • segment as part of a strand guide means an upper frame and a lower frame, on each of which strand guide rollers are rotatably mounted.
  • the upper frame and the lower frame each have typically four tie rods or hydraulic cylinders connected to each other.
  • the strand guide rollers of the upper frame and the strand guide rollers of the lower frame are arranged opposite one another and form a channel for guiding the cast strand when it is pulled out of the mold.
  • a plurality of segments are typically arranged one behind the other in the casting direction for guiding the cast strand.
  • the claimed definition of the segment in the z or casting direction ensures that the freshly cast strand is continuously guided, i. H. in particular that there are no impermissibly large distances between the exit of the mold and the first segment or between adjacent segments in the casting direction where the cast strand would not be supported.
  • the further claimed degree of freedom in the x or radial direction advantageously ensures that the segment automatically optimally positions itself due to the forces of the cast strand acting in the x direction, so that the forces acting on the segment by the cast strand are minimized. Due to the aforementioned degree of freedom in the x-direction, the segment is automatically shifted due to the forces acting on the cast strand in such a way that the transition is either on its inlet side or on its outlet side, i.e. H.
  • the floating bearing according to the invention not only grants a degree of freedom in the x direction, but also a rotational degree of freedom.
  • the floating bearing according to the invention has a preferably integrated rotary bearing for pivoting the segment about the y-axis. While with the granting of the claimed degree of freedom in the x-direction, the segment is usually either only on its input side to the previous component (mold or segment) or only on its output side can be aligned to the following segment, the additionally stressed pivot bearing also enables a simultaneous alignment of the segment both on its input and on its output side to the respectively adjacent components of the continuous caster.
  • the storage of the segment at the level of its center of gravity as claimed in a first embodiment offers the advantage that the segment supported in this way does not tend to tilt within the pivot bearing, but instead is supported in terms of force in a neutral manner in every rotational position or angular position. Therefore, as said, no tilting moments of the segment arise about its axis of rotation, which would otherwise disadvantageously have to be compensated for in terms of force by the cast strand in order to optimally position the segment with respect to its transitions. In this respect, the mounting of the segment in its center of gravity also has an advantageous effect on the quality of the cast strand.
  • An even further optimized bearing can be formed by having a degree of freedom not only in the x-direction and rotationally, but also in the y-direction, i.e. H. Granted in the width direction of the cast strand.
  • the self-alignment of the segment then works even better.
  • the figure shows the continuous casting device 100. It comprises a mold 110 and a strand guide 120 downstream of the mold in the casting direction R.
  • the strand guide 120 consists of a plurality of segments 25 which are arranged one behind the other in the casting direction R.
  • Castors 115 can be arranged between the mold 110 and the first segment.
  • the upper frame and the lower frame of a segment are connected to one another via hydraulic cylinders 23 in the figure.
  • the first segment downstream of the mold - apart from the casters 115 - is mounted on the fixed side 28 of the strand guide 120 via the mounting 10 according to the invention.
  • this bearing 10 is designed as a floating bearing so that it fixes the segment 25 in the z-direction.
  • the segment 25 is mounted so as to be freely displaceable. Further preferably, the segment 25 can also be mounted so that it can rotate freely about the y-axis. A pivot bearing is then integrated in the floating bearing for this purpose.
  • the floating bearing also has a degree of freedom in the y direction, i.e. H. in the width direction of the cast strand or in the longitudinal direction of the strand guide rollers 123.
  • the floating bearing is designed in the form of a sliding, supporting or sliding bearing, possibly integrated with the rotary bearing.
  • the mounting according to the invention can in principle be used for any segment, preferably also for a plurality of segments in the strand guide.
  • the application is particularly advantageous however, in the first segment in the strand guide behind the mold, because then the shell of the cast strand is still relatively thin and the cast strand is therefore particularly sensitive to cracks in the transition between the mold and the first segment, but also in the transition from the first segment to the second segment responds. Because of its then only limited solidification, it is advantageous if the first segment, in particular, can automatically optimally align itself even when the forces of the cast strand are already low. This is ensured by the degrees of freedom granted in the storage according to the invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Rolling Contact Bearings (AREA)

Description

Die Erfindung betrifft eine Lagerung für ein Segment in einer Strangführung unterhalb der Kokille einer Brammenstranggießanlage. Die Strangführung und deren Segmente dienen zum Führen eines Gießstrangs aus der Kokille in die Horizontale. Die Erfindung betrifft neben der Lagerung außerdem eine Strangführung mit der erfindungsgemäßen Lagerung. Die Erfindung findet Anwendung in Brammen- oder Dünnbrammenstranggießanlagen in den Ausführungsformen Bogenanlage, Vertikalabbiegeanlage oder Vertikalanlage.The invention relates to a mounting for a segment in a strand guide below the mold of a continuous slab caster. The strand guide and its segments are used to guide a cast strand from the mold into the horizontal. In addition to the storage, the invention also relates to a strand guide with the storage according to the invention. The invention is used in slab or thin slab continuous casting plants in the forms of arched plant, vertical bending plant or vertical plant.

Im Stand der Technik sind Lagerungen für Segmente in einer Strangführung grundsätzlich bekannt. Insbesondere ist es bekannt, die Segmente jeweils mittels einstellbaren Anschlägen in der vertikalen und horizontalen Ebene in der Strangführung fest zu positionieren.In the prior art, bearings for segments in a strand guide are known in principle. In particular, it is known to firmly position the segments in the strand guide in each case by means of adjustable stops in the vertical and horizontal planes.

Die Wärmeausdehnung eines Segmentes in der Stranggießanlage kann während des Gießbetriebes zu unerwünschten Spannungen führen, insbesondere wenn das Segment vollständig fest eingespannt ist. Um derartige Spannungen in Folge von Wärmeausdehnung zu vermeiden, ist es beispielsweise aus der internationalen Patentanmeldung WO 2011/131435 bekannt, die vier Auflagepunkte eines Segmentes auf einem Segmentträger einer Strangführung bezüglich Ihrer jeweiligen Freiheitsgrade unterschiedlich auszubilden. Konkret sieht die internationale Patentanmeldung vor, das Segment lediglich an einem ersten der Auflagepunkte fest zu verankern. Ein zweiter Auflagepunkt gestattet eine Verschiebung des Segmentes quer zur Gießrichtung und die beiden verbleibenden der vier Auflagepunkte gewährleisten eine Verschiebung des Segmentes in alle übrigen Richtungen. Das Segment selber ist damit grundsätzlich immer noch ortsfest an dem Segmentträger gelagert; gleichzeitig wird aber vorteilhafterweise einer thermischen Ausdehnung des Segmentes Rechnung getragen.The thermal expansion of a segment in the continuous caster can lead to undesirable stresses during the casting operation, especially if the segment is completely clamped in place. In order to avoid such stresses as a result of thermal expansion, it is, for example, from the international patent application WO 2011/131435 known to design the four support points of a segment on a segment carrier of a strand guide differently with regard to their respective degrees of freedom. Specifically, the international patent application provides for the segment to be firmly anchored only at a first of the support points. A second support point allows the segment to be displaced transversely to the casting direction and the two remaining of the four support points ensure a displacement of the segment in all other directions. The segment itself is basically still mounted in a stationary manner on the segment carrier; at the same time, however, a thermal expansion of the segment is advantageously taken into account.

Die Wärmeausdehnung nicht nur der Segmente, sondern auch der gesamten Stranggießanlage während des Gießbetriebs führt nachteiligerweise im Übergang von der Kokille zum Segment und im Übergang von benachbarten Segmenten zueinander zu Veränderungen der Positionen der Rollen der Segmente zu deren theoretisch-idealen Positionen im Rollenteppich. Diese Veränderungen verursachen Spannungen und Dehnungen an der Strangschale und führen zu unerwünschten Fehlern bei den produzierten Brammen. Aufgrund der Vielzahl variierender Einflussgrößen während des Gießbetriebs sind die Veränderungen im Rollenteppich nur näherungsweise kalkulierbar und messtechnisch nur mit sehr großem Aufwand erfassbar.The thermal expansion not only of the segments but also of the entire continuous caster during the casting operation disadvantageously leads to changes in the positions of the roles of the segments in the transition from the mold to the segment and in the transition from adjacent segments to their theoretically ideal positions in the roller carpet. These changes cause stresses and strains on the strand shell and lead to undesirable defects in the slabs produced. Due to the large number of varying influencing variables during the casting operation, the changes in the roller carpet can only be approximately calculated and can only be measured with a great deal of effort.

Die EP 2 648 864 B1 offenbart sämtliche Merkmale des Oberbegriffs des Patentanspruchs 1.The EP 2 648 864 B1 discloses all features of the preamble of claim 1.

Der Erfindung liegt die Aufgabe zugrunde, eine bekannte Lagerung für ein Segment in einer Strangführung sowie eine bekannte entsprechende Strangführung dahingehend weiterzubilden, dass - insbesondere während des Gießbetriebs - der Einfluss der Wärmeausdehnung der Stranggießanlage auf die Übergänge noch weiter deutlich reduziert wird.
Diese Aufgabe wird durch die in Patentanspruch 1 beanspruchte Lagerung gelöst. Demnach ist die erfindungsgemäße Lagerung dadurch gekennzeichnet, dass das Loslager ein Drehlager aufweist zum Schwenken des Segments um die y-Achse. Für die Definition der x-, y- und z-Richtung gilt das in der Figur angegebene Koordinatensystem. Dabei bezeichnet z die vertikale und x und y spannen eine Ebene in der Horizontalen auf. Insbesondere bezeichnet y die Breitenrichtung des Strangs und x die Richtung senkrecht zur breiten Oberfläche des Gießstrangs.The invention is based on the object of developing a known bearing for a segment in a strand guide and a known corresponding strand guide in such a way that - especially during the casting operation - the influence of the thermal expansion of the continuous caster on the transitions is significantly reduced even further.
This object is achieved by the storage claimed in claim 1. Accordingly, the bearing according to the invention is characterized in that the floating bearing has a rotary bearing for pivoting the segment about the y-axis. The coordinate system given in the figure applies to the definition of the x, y and z directions. Here, z denotes the vertical and x and y span a plane in the horizontal. In particular, y denotes the width direction of the strand and x the direction perpendicular to the broad surface of the cast strand.

Der Begriff "Segment" als Teil einer Strangführung meint einen Oberrahmen und einen Unterrahmen, an denen jeweils Strangführungsrollen drehbar gelagert sind. Der Oberrahmen und der Unterrahmen sind jeweils über typischerweise vier Zuganker oder Hydraulikzylinder miteinander verbunden. Die Strangführungsrollen des Oberrahmens und die Strangführungsrollen des Unterrahmens sind einander gegenüberliegend angeordnet und bilden einen Kanal zur Führung des Gießstrangs, wenn dieser aus der Kokille ausgezogen wird. In der Strangführung sind typischerweise eine Mehrzahl von Segmenten in Gießrichtung hintereinander angeordnet zum Führen des Gießstrangs.The term “segment” as part of a strand guide means an upper frame and a lower frame, on each of which strand guide rollers are rotatably mounted. The upper frame and the lower frame each have typically four tie rods or hydraulic cylinders connected to each other. The strand guide rollers of the upper frame and the strand guide rollers of the lower frame are arranged opposite one another and form a channel for guiding the cast strand when it is pulled out of the mold. In the strand guide, a plurality of segments are typically arranged one behind the other in the casting direction for guiding the cast strand.

Die beanspruchte Festlegung des Segmentes in z- bzw. Gießrichtung stellt sicher, dass der frisch gegossene Strang kontinuierlich geführt wird, d. h. dass insbesondere keine unzulässig großen Abstände zwischen dem Ausgang der Kokille und dem ersten Segment oder zwischen benachbarten Segmenten in Gießrichtung entstehen, wo der Gießstrang nicht gestützt würde. Der weiterhin beanspruchte Freiheitsgrad in x- bzw. radialer Richtung gewährleistet vorteilhafterweise, dass sich das Segment aufgrund der gegebenenfalls in x-Richtung wirkenden Kräfte des Gießstrangs automatisch selber optimal positioniert, so dass die von dem Gießstrang auf das Segment wirkenden Kräfte möglichst minimal werden. Aufgrund des besagten Freiheitsgrades in x-Richtung verschiebt sich das Segment aufgrund der einwirkenden Kräfte des Gießstrangs jeweils automatisch so, dass der Übergang entweder an seiner Einlaufseite oder seiner Auslaufseite, d. h. zur Kokille oder zu einem benachbarten Segment sprungfrei bzw. glatt wird. Dadurch werden vorteilhafterweise Spannungen und Dehnungen an der Strangschale des Gießstrangs minimiert und die Produktqualität verbessert. Die Wärmeausdehnung der Stranggießanlage hat durch den beanspruchten Freiheitsgrad zumindest in x-Richtung keinen negativen Einfluss mehr auf die besagten Übergänge.The claimed definition of the segment in the z or casting direction ensures that the freshly cast strand is continuously guided, i. H. in particular that there are no impermissibly large distances between the exit of the mold and the first segment or between adjacent segments in the casting direction where the cast strand would not be supported. The further claimed degree of freedom in the x or radial direction advantageously ensures that the segment automatically optimally positions itself due to the forces of the cast strand acting in the x direction, so that the forces acting on the segment by the cast strand are minimized. Due to the aforementioned degree of freedom in the x-direction, the segment is automatically shifted due to the forces acting on the cast strand in such a way that the transition is either on its inlet side or on its outlet side, i.e. H. to the mold or to an adjacent segment is crack-free or smooth. This advantageously minimizes stresses and strains on the strand shell of the cast strand and improves the product quality. The thermal expansion of the continuous caster no longer has any negative influence on the transitions in question due to the degree of freedom claimed, at least in the x direction.

Gemäß der Erfindung wird der Einfluss der Wärmeausdehnung der Stranggießanlage auf die Übergänge noch weiter deutlich reduziert, indem das erfindungsgemäße Loslager nicht nur einen Freiheitsgrad in x-Richtung, sondern zusätzlich auch einen rotatorischen Freiheitgrad gewährt. Zu diesem Zweck weist das erfindungsgemäße Loslager ein vorzugsweise integriertes Drehlager auf zum Schwenken des Segmentes um die y-Achse. Während mit der Gewährung des beanspruchten Freiheitsgrades in x-Richtung das Segment in der Regel entweder nur an seiner Eingangsseite zu der vorherigen Komponente (Kokille oder Segment) oder nur an seiner Ausgangsseite zu dem nachfolgenden Segment ausgerichtet werden kann, ermöglicht das zusätzlich beanspruchte Drehlager auch eine gleichzeitige Ausrichtung des Segmentes sowohl an seiner Eingangs- wie auch an seiner Ausgangsseite zu den jeweils benachbarten Komponenten der Stranggießanlage.According to the invention, the influence of the thermal expansion of the continuous caster on the transitions is reduced even further, in that the floating bearing according to the invention not only grants a degree of freedom in the x direction, but also a rotational degree of freedom. For this purpose, the floating bearing according to the invention has a preferably integrated rotary bearing for pivoting the segment about the y-axis. While with the granting of the claimed degree of freedom in the x-direction, the segment is usually either only on its input side to the previous component (mold or segment) or only on its output side can be aligned to the following segment, the additionally stressed pivot bearing also enables a simultaneous alignment of the segment both on its input and on its output side to the respectively adjacent components of the continuous caster.

Die gemäß einem ersten Ausführungsbeispiel beanspruchte Lagerung des Segmentes auf Höhe ihres Schwerpunktes bietet den Vorteil, dass das so gelagerte Segment von sich aus nicht zu einer Kippbewegung innerhalb des Drehlagers neigt, sondern stattdessen in jeder Drehposition bzw. Winkellage kräftemäßig neutral gelagert ist. Deshalb entstehen, wie gesagt, keine Kippmomente des Segmentes um seine Drehachse, die ansonsten nachteiligerweise von dem Gießstrang kräftemäßig kompensiert werden müssten, um das Segment bezüglich seiner Übergänge optimal zu positionieren. Insofern wirkt sich auch die Lagerung des Segmentes in seinem Schwerpunkt vorteilhaft auf die Qualität des Gießstrangs aus.The storage of the segment at the level of its center of gravity as claimed in a first embodiment offers the advantage that the segment supported in this way does not tend to tilt within the pivot bearing, but instead is supported in terms of force in a neutral manner in every rotational position or angular position. Therefore, as said, no tilting moments of the segment arise about its axis of rotation, which would otherwise disadvantageously have to be compensated for in terms of force by the cast strand in order to optimally position the segment with respect to its transitions. In this respect, the mounting of the segment in its center of gravity also has an advantageous effect on the quality of the cast strand.

Eine noch weiter optimierte Lagerung kann dadurch gebildet werden, dass sie einen Freiheitsgrad nicht nur in x-Richtung und rotatorisch, sondern zusätzlich auch in y-Richtung, d. h. in Breitenrichtung des Gießstrangs gewährt. Die Selbstausrichtung des Segmentes funktioniert dann noch weiter verbessert.An even further optimized bearing can be formed by having a degree of freedom not only in the x-direction and rotationally, but also in the y-direction, i.e. H. Granted in the width direction of the cast strand. The self-alignment of the segment then works even better.

Die oben genannte Aufgabe der Erfindung wird bezüglich der Strangführung durch den Gegenstand des Anspruchs 6 gelöst. Die Vorteile dieser Lösung entsprechen den oben mit Bezug auf die beanspruchte Lagerung genannten Vorteilen. Weitere Ausführungsbeispiele der beanspruchten Lagerung und der beanspruchten Strangführung sind Gegenstand der abhängigen Ansprüche.The above-mentioned object of the invention is achieved with regard to the strand guide by the subject matter of claim 6. The advantages of this solution correspond to the advantages mentioned above with regard to the claimed storage. Further Embodiments of the claimed storage and the claimed strand guide are the subject of the dependent claims.

Der Beschreibung ist eine Figur beigefügt, welche eine Stranggießeinrichtung mit der erfindungsgemäßen Lagerung zeigt. Die Erfindung wird nachfolgend unter Bezugnahme auf die Figur in Form von Ausführungsbeispielen detailliert beschrieben.A figure is attached to the description which shows a continuous casting device with the bearing according to the invention. The invention is described in detail below with reference to the figure in the form of exemplary embodiments.

Die Figur zeigt die Stranggießeinrichtung 100. Sie umfasst eine Kokille 110 und eine der Kokille in Gießrichtung R nachgeordnete Strangführung 120. Die Strangführung 120 besteht aus einer Mehrzahl von Segmenten 25, welche in Gießrichtung R hintereinander angeordnet sind. Zwischen der Kokille 110 und dem ersten Segment können Fußrollen 115 angeordnet sein. Der Oberrahmen und der Unterrahmen eines Segmentes sind in der Figur beispielhaft über Hydraulikzylinder 23 miteinander verbunden. Das der Kokille - abgesehen von den Fußrollen 115 - nachgelagerte erste Segment ist über die erfindungsgemäße Lagerung 10 an der Festseite 28 der Strangführung 120 gelagert. Erfindungsgemäß ist diese Lagerung 10 als Loslager so ausgebildet, dass sie das Segment 25 in z-Richtung festlegt. Zumindest in x-Richtung ist das Segment 25 jedoch frei verschiebbar gelagert. Weiter vorzugsweise kann das Segment 25 auch rotatorisch um die y-Achse frei drehbar gelagert sein. Dazu ist dann in dem Loslager ein Drehlager integriert. Schließlich besteht weiterhin zusätzlich die Möglichkeit, dass das Loslager auch einen Freiheitsgrad in y-Richtung, d. h. in Breitenrichtung des Gießstrangs bzw. in Längsrichtung der Strangführungsrollen 123 gewährt. Je nach Anzahl der gewährten Freiheitsgrade ist das Loslager in Form eines Gleit-, Auf- oder Verschiebelagers ausgebildet, gegebenenfalls mit dem Drehlager integriert.The figure shows the continuous casting device 100. It comprises a mold 110 and a strand guide 120 downstream of the mold in the casting direction R. The strand guide 120 consists of a plurality of segments 25 which are arranged one behind the other in the casting direction R. Castors 115 can be arranged between the mold 110 and the first segment. The upper frame and the lower frame of a segment are connected to one another via hydraulic cylinders 23 in the figure. The first segment downstream of the mold - apart from the casters 115 - is mounted on the fixed side 28 of the strand guide 120 via the mounting 10 according to the invention. According to the invention, this bearing 10 is designed as a floating bearing so that it fixes the segment 25 in the z-direction. At least in the x direction, however, the segment 25 is mounted so as to be freely displaceable. Further preferably, the segment 25 can also be mounted so that it can rotate freely about the y-axis. A pivot bearing is then integrated in the floating bearing for this purpose. Finally, there is also the additional possibility that the floating bearing also has a degree of freedom in the y direction, i.e. H. in the width direction of the cast strand or in the longitudinal direction of the strand guide rollers 123. Depending on the number of degrees of freedom granted, the floating bearing is designed in the form of a sliding, supporting or sliding bearing, possibly integrated with the rotary bearing.

Die erfindungsgemäße Lagerung kann grundsätzlich bei jedem beliebigen Segment, vorzugsweise auch bei einer Mehrzahl von Segmenten in der Strangführung zur Anwendung kommen. Besonders vorteilhaft ist die Anwendung jedoch bei dem ersten Segment in der Strangführung hinter der Kokille, weil dann die Schale des Gießstrangs noch relativ dünn ist und der Gießstrang deshalb besonders empfindlich auf Sprünge im Übergang zwischen der Kokille und dem ersten Segment, aber auch im Übergang des ersten Segmentes zum zweiten Segment reagiert. Aufgrund seiner dann erst begrenzten Erstarrung ist es vorteilhaft, wenn sich das insbesondere erste Segment auch bei bereits geringen Kräften des Gießstrangs automatisch selber optimal ausrichten kann. Dies wird durch die bei der erfindungsgemäßen Lagerung gewährten Freiheitsgrade gewährleistet.The mounting according to the invention can in principle be used for any segment, preferably also for a plurality of segments in the strand guide. The application is particularly advantageous however, in the first segment in the strand guide behind the mold, because then the shell of the cast strand is still relatively thin and the cast strand is therefore particularly sensitive to cracks in the transition between the mold and the first segment, but also in the transition from the first segment to the second segment responds. Because of its then only limited solidification, it is advantageous if the first segment, in particular, can automatically optimally align itself even when the forces of the cast strand are already low. This is ensured by the degrees of freedom granted in the storage according to the invention.

BezugszeichenlisteList of reference symbols

1010
Lagerung, insbesondere LoslagerStorage, especially floating bearings
2020th
StrangführungStrand guide
2323
HydraulikzylinderHydraulic cylinder
2525th
Segmentsegment
2626th
RollenpaarPair of rollers
2828
Segmentträger/Festland/FestseiteSegment carrier / mainland / fixed side
100100
StranggießeinrichtungContinuous caster
110110
KokilleMold
115115
FußrollenCasters
120120
StrangführungStrand guide
123123
StrangführungsrolleStrand guide roller
RR.
GießrichtungPouring direction
x, y, zx, y, z
Richtungdirection

Claims (7)

  1. Mount (10) for a segment (25) in a strip guide (20), wherein the mount (10) connects the segment (25) with the fixed side (28) of the strip guide, wherein the mount is so constructed as a movable bearing that the segment (25) mounted therein is fixed in z direction, but freely movable in x direction, characterised in that the movable bearing (10) comprises a rotary bearing for pivotation of the segment (25) about the y axis.
  2. Mount (10) according to claim 1, characterised in that the rotary bearing is integrated in the movable bearing.
  3. Mount according to claim 1 or 2, characterised in that the segment-side part of the mount, particularly the rotary bearing, is arranged at the level of the centre of gravity of the segment.
  4. Mount (10) according to any one of the preceding claims, characterised in that the movable bearing (10) is so constructed that the segment (25) mounted therein is in addition also freely movable in y direction.
  5. Mount (10) according to any one of the preceding claims, characterised in that the movable bearing (10) is constructed in the form of a slide bearing, support bearing or shift bearing, in a given case with the preferably integrated rotary bearing.
  6. Strip guide (20) for guiding a cast strip in a continuous casting plant, wherein the stirp guide (20) comprises:
    at least one segment (25) with a plurality of roller pairs (26) for guiding the cast strip; and
    a segment support, which is arranged at the fixed side, with a mount for supporting and mounting the segment (25);
    characterised in that
    the mount (10) is constructed in accordance with any one of the preceding claims for mounting the segment (25) on the segment support (28).
  7. Strip guide (20) according to claim 6, characterised in that the segment (25) is the first segment in the strip guide in casting direction R.
EP18733868.6A 2017-08-04 2018-06-25 Mount for a segment in a strand guide and strand guide Active EP3661671B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102017213624 2017-08-04
DE102017220637 2017-11-17
DE102017221756.1A DE102017221756A1 (en) 2017-08-04 2017-12-04 Storage for a segment in a strand guide
PCT/EP2018/066908 WO2019025081A1 (en) 2017-08-04 2018-06-25 Mount for a segment in a strand guide and strand guide

Publications (2)

Publication Number Publication Date
EP3661671A1 EP3661671A1 (en) 2020-06-10
EP3661671B1 true EP3661671B1 (en) 2020-12-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP18733868.6A Active EP3661671B1 (en) 2017-08-04 2018-06-25 Mount for a segment in a strand guide and strand guide

Country Status (3)

Country Link
EP (1) EP3661671B1 (en)
DE (1) DE102017221756A1 (en)
WO (1) WO2019025081A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019203141A1 (en) 2019-03-07 2020-09-10 Sms Group Gmbh Strand guide and method for guiding a cast strand from a mold
CN113649534B (en) * 2021-07-09 2022-09-09 中国冶金科工股份有限公司 Slab continuous casting sector section space positioning measurement method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2602935A1 (en) * 1976-01-27 1977-07-28 Fives Cail Babcock Continuous casting installation - allowing auto-alignment of the two guiding systems
DE102010017924A1 (en) 2010-04-22 2011-10-27 Sms Siemag Ag Modular support frame
DE102010054398A1 (en) * 2010-12-08 2012-06-14 Sms Siemag Ag continuous casting plant

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE102017221756A1 (en) 2019-02-07
WO2019025081A1 (en) 2019-02-07
EP3661671A1 (en) 2020-06-10

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