EP3272442B1 - Method for operating a strand guide in a continuous casting system and corresponding strand guide - Google Patents

Method for operating a strand guide in a continuous casting system and corresponding strand guide Download PDF

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Publication number
EP3272442B1
EP3272442B1 EP17182119.2A EP17182119A EP3272442B1 EP 3272442 B1 EP3272442 B1 EP 3272442B1 EP 17182119 A EP17182119 A EP 17182119A EP 3272442 B1 EP3272442 B1 EP 3272442B1
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EP
European Patent Office
Prior art keywords
strip guide
oscillation
upper frame
casting
lower frame
Prior art date
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Not-in-force
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EP17182119.2A
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German (de)
French (fr)
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EP3272442A1 (en
Inventor
Christian Geerkens
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SMS Group GmbH
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SMS Group GmbH
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Publication of EP3272442A1 publication Critical patent/EP3272442A1/en
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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
    • B22D11/1282—Vertical casting and curving the cast stock to the horizontal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/20—Controlling or regulating processes or operations for removing cast stock
    • B22D11/201—Controlling or regulating processes or operations for removing cast stock responsive to molten metal level or slag level

Definitions

  • the invention relates to a method for operating a strand guide in a continuous casting plant for the casting of liquid metals.
  • the invention relates to a corresponding strand guide.
  • the invention is limited to strand guides in segmental design.
  • a particular problem in the casting of liquid metals is the occurrence of bulges on the surface of the freshly poured casting strands, also called dynamic bulging. This problem occurs especially when casting at high casting speeds, i. H. at high mass flows.
  • the problem is basically known in the art and there are various approaches to prevent or at least reduce the said undesirable bulges.
  • the publication EP 0 946 318 B1 recommends to avoid vibrations of the casting mirror, a shift of roles of the upper frame relative to the subframe with an offset in a size between 10% and 50% of a roller pitch.
  • the strand guide rollers of Subframe along the strand infinitely variable positionable.
  • the bulge on the cast strand is advantageously smaller than in the case of guide rollers arranged opposite one another.
  • the said displacement takes place only once before each casting operation, but not during a casting operation. A temporal change of the roller distances or the upper frame relative to the subframe during the casting operation does not take place.
  • the distances of the roller segments are determined on the basis of a previously determined optimum for maximum damping of all bulging effects.
  • a variable casting speed is also taken into account in determining the roll distances.
  • the optimized distances can also be increased or decreased in an irregular sequence during the casting operation. Due to the succession of constantly changing support rollers, the Badadorschwankept be advantageously minimized or avoided altogether.
  • the strand guide rollers known in the art have a diameter of 100 to 300 mm.
  • German patent application DE 2036266 discloses a continuous casting plant with a continuous casting mold and these downstream supporting rollers, between which spray nozzles of a water cooling are directed onto the strand.
  • a first zone of the roller guide with the associated spray nozzles is independently of the mold in the strand direction at a multiple of the strand speed oscillating movable, wherein the oscillation corresponds to at least half the center distance of the support rollers.
  • the present invention seeks to provide an alternative method for operating a strand guide in a continuous casting plant for the casting of liquid metals and a corresponding alternative strand guide To provide, or at least to reduce undesirable vibrations in the bath level of the liquid metal in the mold.
  • the claimed oscillation advantageously reduces or preferably avoids fluctuations in the bath level in the mold.
  • the oscillation causes a homogenization of the casting conditions, in particular breakthroughs and massive quality deviations in the cast casting strand are avoided.
  • FIG. 1 shows the strand guide 120 according to the invention in a continuous casting plant 100.
  • the continuous casting plant comprises a mold 110, in which the liquid metal, in particular a steel material is cast into a cast strand.
  • the strand guide 120 adjoins the mold 110 in the casting direction G and serves to transfer the casting strand from the typically vertically oriented mold 110 into the horizontal.
  • the strand guide 120 according to the invention has at least one roller segment 130, but typically a plurality of such roller segments 130, which are arranged one behind the other in the casting direction.
  • FIG. 2 It shows the typical structure of a roller segment 130 according to the invention. It consists of an upper frame 132 on which a plurality of strand guide rollers 136 are rotatably mounted.
  • the roller segment 130 has a lower frame 134 on which a plurality of strand guide rollers 136 are also rotatably mounted.
  • Both the strand guide rollers of the upper frame as well as the strand guide rollers of the subframe are each fixedly spaced from each other to the frame. Their diameters d are between 95 and 400 mm, wherein within a segment, the strand guide rollers typically each have a same diameter.
  • the upper frame 132 and / or the lower frame 134 is associated with an oscillation device 140 for oscillating the upper frame and / or the lower frame in the casting direction G.
  • Said oscillation of the upper frame with the strand guide rollers rotatably mounted thereon preferably takes place with a fixed, ie non-oscillating, subframe.
  • the subframe with the aid of the oscillator 140 in an oscillation in or against the casting direction are offset, preferably with a stationary upper frame 132.
  • both the subframe and the upper frame oscillate, either synchronously or not synchronous.
  • the amplitude of the oscillation of the upper frame 132 and / or the lower frame 134 is preferably between 0 and 50 mm. In this case, the size of the amplitude of the oscillation can be adjusted as a function of the casting speed.
  • the casting speed V g during which the oscillation takes place is preferably between 0.17 m / min. and 8 m / min., more preferably it is however, in particular V g > 6 m / min.
  • the mass flow of the cast strand is preferably at m > 3.5 t / min / m.
  • the oscillation may, for example, be sinusoidal or trapezoidal.
  • the adjustment of the amplitude or the frequency of the oscillation takes place independently of the current position of the bulge on the cast strand.
  • the oscillation takes place in a roller segment, which is arranged in a horizontal region of the strand guide.

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

Description

Die Erfindung betrifft ein Verfahren zum Betreiben einer Strangführung in einer Stranggießanlage zum Gießen von flüssigen Metallen. Darüber hinaus betrifft die Erfindung eine entsprechende Strangführung. Die Erfindung ist auf Strangführungen in Segmentbauweise beschränkt.The invention relates to a method for operating a strand guide in a continuous casting plant for the casting of liquid metals. In addition, the invention relates to a corresponding strand guide. The invention is limited to strand guides in segmental design.

Ein besonderes Problem beim Gießen von flüssigen Metallen ist das Auftreten von Ausbauchungen auf der Oberfläche der frisch gegossenen Gießstränge, auch dynamisches Bulging genannt. Dieses Problem tritt insbesondere beim Gießen mit hohen Gießgeschwindigkeiten, d. h. bei hohen Massenflüssen auf. Das Problem ist im Stand der Technik grundsätzlich bekannt und es gibt verschiedene Ansätze, um die besagten unerwünschten Ausbauchungen zu verhindern bzw. zumindest zu reduzieren.A particular problem in the casting of liquid metals is the occurrence of bulges on the surface of the freshly poured casting strands, also called dynamic bulging. This problem occurs especially when casting at high casting speeds, i. H. at high mass flows. The problem is basically known in the art and there are various approaches to prevent or at least reduce the said undesirable bulges.

So empfiehlt die EP 0 917 922 B1 zur Vermeidung von Ausbauchungen und zur Unterdrückung von schädlichem Pulsieren der Restschmelze im Gießstrang - und damit auch zur Vermeidung von Schwankungen im Badspiegel der flüssigen Schmelze in der Kokille - dass die Rollen jeweils einer Seite, d. h. der Festseite oder der Losseite der Strangführung relativ zur Position der anderen Seite in Gießrichtung um maximal den halben Rollenabstand zueinander versetzt werden. Zu diesem Zweck wird die gesamte Rollenbahn der Strangführung entweder auf der Innenseite oder auf der Außenseite der Strangführung in Längsrichtung und damit in Gießrichtung verschoben.So recommends the EP 0 917 922 B1 to avoid bulges and to suppress harmful pulsation of the residual melt in the cast strand - and thus to avoid fluctuations in the bath level of the liquid melt in the mold - that the roles of one side, ie the fixed side or the Losseite the strand guide relative to the position of the other side in the casting direction by a maximum of half the roll spacing are offset from each other. For this purpose, the entire roller conveyor of the strand guide is moved either on the inside or on the outside of the strand guide in the longitudinal direction and thus in the casting direction.

Die Druckschrift EP 0 946 318 B1 empfiehlt zur Vermeidung von Schwingungen des Gießspiegels eine Verschiebung von Rollen des Oberrahmens gegenüber dem Unterrahmen mit einem Versatz in einer Größe zwischen 10 % und 50 % einer Rollenteilung. Zu diesem Zweck sind die Strangführungsrollen des Unterrahmens längs des Strangs stufenlos veränderbar positionierbar. Infolge der besagten Verschiebung der Strangführungsrollen wird vorteilhafterweise die Ausbauchung auf dem Gießstrang kleiner als bei gegenüberliegend angeordneten Führungsrollen. Die besagte Verschiebung erfolgt jedoch nur einmal vor jedem Gießbetrieb, nicht allerdings während eines Gießbetriebs. Eine zeitliche Veränderung der Rollenabstände bzw. des Oberrahmens gegenüber dem Unterrahmen während des Gießbetriebs erfolgt nicht.The publication EP 0 946 318 B1 recommends to avoid vibrations of the casting mirror, a shift of roles of the upper frame relative to the subframe with an offset in a size between 10% and 50% of a roller pitch. For this purpose, the strand guide rollers of Subframe along the strand infinitely variable positionable. As a result of the said displacement of the strand guide rollers, the bulge on the cast strand is advantageously smaller than in the case of guide rollers arranged opposite one another. However, the said displacement takes place only once before each casting operation, but not during a casting operation. A temporal change of the roller distances or the upper frame relative to the subframe during the casting operation does not take place.

Schließlich lehrt die WO 2007/121838 A1 die Abstände von Rollensegmenten in Gießrichtung auf stationäre Ausbauchungen einzustellen, um auf diese Weise Schwankungen des Badspiegels in der Stranggießkokille zu reduzieren. Zu diesem Zweck werden die Abstände der Rollensegmente aufgrund eines zuvor ermittelten Optimums für eine maximale Dämpfung aller Ausbauchungseffekte bestimmt. Dabei wird auch eine variable Gießgeschwindigkeit bei der Bestimmung der Rollenabstände mitberücksichtigt. Die optimierten Abstände können in unregelmäßiger Folge auch während des Gießbetriebs vergrößert oder verkleinert werden. Durch die Aufeinanderfolge ständig wechselnder Stützrollen werden die Badspiegelschwankungen vorteilhafterweise minimiert oder ganz vermieden. Die im Stand der Technik bekannten Strangführungsrollen haben einen Durchmesser von 100 bis 300 mm.Finally, that teaches WO 2007/121838 A1 To adjust the distances of roll segments in the casting direction to stationary bulges, in order to reduce fluctuations in the bath level in the continuous casting mold in this way. For this purpose, the distances of the roller segments are determined on the basis of a previously determined optimum for maximum damping of all bulging effects. In this case, a variable casting speed is also taken into account in determining the roll distances. The optimized distances can also be increased or decreased in an irregular sequence during the casting operation. Due to the succession of constantly changing support rollers, the Badspiegelschwankungen be advantageously minimized or avoided altogether. The strand guide rollers known in the art have a diameter of 100 to 300 mm.

Die deutsche Offenlegungsschrift DE 2036266 offenbart eine Stranggießanlage mit einer Durchlaufkokille und dieser nachgeordneten Stützrollen, zwischen welchen Sprühdüsen einer Wasserkühlung auf den Strang gerichtet sind. Eine erste Zone der Rollenführung mit den zugeordneten Sprühdüsen ist unabhängig von der Kokille in Strangrichtung mit einem Vielfachen der Stranggeschwindigkeit oszillierend bewegbar, wobei der Oszillationshub mindestens dem halben Achsabstand der Stützrollen entspricht.The German patent application DE 2036266 discloses a continuous casting plant with a continuous casting mold and these downstream supporting rollers, between which spray nozzles of a water cooling are directed onto the strand. A first zone of the roller guide with the associated spray nozzles is independently of the mold in the strand direction at a multiple of the strand speed oscillating movable, wherein the oscillation corresponds to at least half the center distance of the support rollers.

Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, ein alternatives Verfahren zum Betreiben einer Strangführung in einer Stranggießanlage zum Gießen von flüssigen Metallen sowie eine entsprechende alternative Strangführung bereitzustellen, um unerwünschte Schwingungen im Badspiegel des flüssigen Metalls in der Kokille zu vermeiden bzw. vorzugsweise zumindest zu reduzieren.Based on this prior art, the present invention seeks to provide an alternative method for operating a strand guide in a continuous casting plant for the casting of liquid metals and a corresponding alternative strand guide To provide, or at least to reduce undesirable vibrations in the bath level of the liquid metal in the mold.

Diese Aufgabe wird verfahrenstechnisch durch das in Patentanspruch 1 beanspruchte Verfahren gelöst. Durch die beanspruchte Oszillation werden vorteilhafterweise Schwankungen im Badspiegel in der Kokille reduziert bzw. vorzugsweise vermieden. Die Oszillation bewirkt eine Homogenisierung der Gießkonditionen, insbesondere Durchbrüche und massive Qualitätsabwertungen bei dem gegossenen Gießstrang werden vermieden.This object is procedurally achieved by the method claimed in claim 1. The claimed oscillation advantageously reduces or preferably avoids fluctuations in the bath level in the mold. The oscillation causes a homogenization of the casting conditions, in particular breakthroughs and massive quality deviations in the cast casting strand are avoided.

Vorrichtungstechnisch wird die oben genannte Aufgabe durch den Gegenstand des Anspruchs 10 gelöst. Die Vorteile dieser Lösung entsprechen den oben mit Bezug auf das beanspruchte Verfahren genannten Vorteilen. Konkrete Ausgestaltungen des beanspruchten Verfahrens und der beanspruchten Strangführung sind Gegenstand der abhängigen Ansprüche.In terms of apparatus, the above-mentioned object is achieved by the subject matter of claim 10. The advantages of this solution correspond to the advantages mentioned above with respect to the claimed method. Concrete embodiments of the claimed method and the claimed strand guide are the subject of the dependent claims.

Der Beschreibung sind zwei Figuren beigefügt, wobei

Figur 1
einen Längsschnitt durch eine Stranggießanlage mit einer Strangführung in Segmentbauweise; und
Figur 2
ein erfindungsgemäßes Rollensegment
zeigt.The description is attached to two figures, wherein
FIG. 1
a longitudinal section through a continuous casting plant with a strand guide in segmented construction; and
FIG. 2
an inventive roller segment
shows.

Die Erfindung wird nachfolgend unter Bezugnahme auf die genannten Figuren in Form von Ausführungsbeispielen detailliert beschrieben. In beiden Figuren sind gleiche technische Elemente mit gleichen Bezugszeichen bezeichnet.The invention will be described in detail below with reference to the said figures in the form of embodiments. In both figures, the same technical elements are designated by the same reference numerals.

Figur 1 zeigt die erfindungsgemäße Strangführung 120 in einer Stranggießanlage 100. Die Stranggießanlage umfasst eine Kokille 110, in welcher das flüssige Metall, insbesondere ein Stahlwerkstoff zu einem Gießstrang gegossen wird. Die Strangführung 120 schließt sich an die Kokille 110 in Gießrichtung G an und dient zum Überführen des Gießstrangs aus der typischerweise vertikal ausgerichteten Kokille 110 in die Horizontale. Die erfindungsgemäße Strangführung 120 weist mindestens ein Rollensegment 130, typischerweise jedoch eine Mehrzahl von solchen Rollensegmenten 130 auf, die in Gießrichtung hintereinander angeordnet sind. FIG. 1 shows the strand guide 120 according to the invention in a continuous casting plant 100. The continuous casting plant comprises a mold 110, in which the liquid metal, in particular a steel material is cast into a cast strand. The strand guide 120 adjoins the mold 110 in the casting direction G and serves to transfer the casting strand from the typically vertically oriented mold 110 into the horizontal. The strand guide 120 according to the invention has at least one roller segment 130, but typically a plurality of such roller segments 130, which are arranged one behind the other in the casting direction.

Figur 2 zeigt den typischen Aufbau eines erfindungsgemäßen Rollensegmentes 130. Es besteht aus einem Oberrahmen 132, an welchem eine Mehrzahl von Strangführungsrollen 136 drehbar gelagert sind. Außerdem weist das Rollensegment 130 einen Unterrahmen 134 auf, an dem ebenfalls eine Mehrzahl von Strangführungsrollen 136 drehbar gelagert sind. Sowohl die Strangführungsrollen des Oberrahmens wie auch die Strangführungsrollen des Unterrahmens sind an den Rahmen jeweils fest zueinander beabstandet. Ihre Durchmesser d liegen zwischen 95 und 400 mm, wobei innerhalb eines Segmentes die Strangführungsrollen typischerweise jeweils einen gleichen Durchmesser haben. Dem Oberrahmen 132 und/oder dem Unterrahmen 134 ist eine Oszillationseinrichtung 140 zugeordnet zum Oszillieren des Oberrahmens und/oder des Unterrahmens in Gießrichtung G. Die besagte Oszillation des Oberrahmens mit den daran drehbar gelagerten Strangführungsrollen erfolgt vorzugsweise bei feststehendem, d. h. nicht oszillierendem Unterrahmen. Umgekehrt kann alternativ auch der Unterrahmen mit Hilfe der Oszillationseinrichtung 140 in eine Oszillation in oder entgegen der Gießrichtung versetzt werden, vorzugsweise bei stillstehendem Oberrahmen 132. Als dritte Alternative ist es auch möglich, dass sowohl der Unterrahmen wie auch der Oberrahmen oszillieren, entweder synchron oder nicht synchron. FIG. 2 It shows the typical structure of a roller segment 130 according to the invention. It consists of an upper frame 132 on which a plurality of strand guide rollers 136 are rotatably mounted. In addition, the roller segment 130 has a lower frame 134 on which a plurality of strand guide rollers 136 are also rotatably mounted. Both the strand guide rollers of the upper frame as well as the strand guide rollers of the subframe are each fixedly spaced from each other to the frame. Their diameters d are between 95 and 400 mm, wherein within a segment, the strand guide rollers typically each have a same diameter. The upper frame 132 and / or the lower frame 134 is associated with an oscillation device 140 for oscillating the upper frame and / or the lower frame in the casting direction G. Said oscillation of the upper frame with the strand guide rollers rotatably mounted thereon preferably takes place with a fixed, ie non-oscillating, subframe. Conversely, alternatively, the subframe with the aid of the oscillator 140 in an oscillation in or against the casting direction are offset, preferably with a stationary upper frame 132. As a third alternative, it is also possible that both the subframe and the upper frame oscillate, either synchronously or not synchronous.

Die Amplitude der Oszillation des Oberrahmens 132 und/oder des Unterrahmens 134 liegt vorzugsweise zwischen 0 und 50 mm. Dabei kann die Größe der Amplitude der Oszillation in Abhängigkeit der Gießgeschwindigkeit eingestellt werden.The amplitude of the oscillation of the upper frame 132 and / or the lower frame 134 is preferably between 0 and 50 mm. In this case, the size of the amplitude of the oscillation can be adjusted as a function of the casting speed.

Die Gießgeschwindigkeit Vg während derer die Oszillation erfolgt, liegt vorzugsweise zwischen 0,17 m/min. und 8 m/min., weiter vorzugsweise liegt sie jedoch insbesondere Vg > 6 m/min. Der Massenfluss des Gießstrangs liegt vorzugsweise bei m > 3,5 t/min/m. Die Oszillation kann beispielsweise sinusförmig oder trapezförmig erfolgen. Die Einstellung der Amplitude oder der Frequenz der Oszillation erfolgen unabhängig von der aktuellen Position der Ausbauchung auf dem Gießstrang. Vorzugsweise erfolgt die Oszillation bei einem Rollensegment, welches in einem horizontalen Bereich der Strangführung angeordnet ist.The casting speed V g during which the oscillation takes place is preferably between 0.17 m / min. and 8 m / min., more preferably it is however, in particular V g > 6 m / min. The mass flow of the cast strand is preferably at m > 3.5 t / min / m. The oscillation may, for example, be sinusoidal or trapezoidal. The adjustment of the amplitude or the frequency of the oscillation takes place independently of the current position of the bulge on the cast strand. Preferably, the oscillation takes place in a roller segment, which is arranged in a horizontal region of the strand guide.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

100100
Stranggießanlagecontinuous casting plant
110110
Kokillemold
120120
Strangführungstrand guide
130130
Rollensegmentroller segment
132132
Oberrahmentop frame
134134
Unterrahmensubframe
136136
StrangführungsrollenStrand guide rolls
140140
Oszillationseinrichtungoscillation
AA
Amplitude der OszillationAmplitude of the oscillation
dd
Durchmesser der StrangführungsrollenDiameter of the strand guide rollers
GG
Gießrichtungcasting
ṁm '
Massenflussmass flow
Vg V g
Gießgeschwindigkeitcasting speed

Claims (13)

  1. Method of operating a strip guide (120) in a continuous casting plant (100) for casting liquid metals, wherein the strip guide (120) comprises at least one roller segment (130) by which a cast strip is guided after casting in a mould (110), comprising the following steps:
    displacing at least a part of the roller segment (130) in the form of an oscillation in and against the casting direction (G) during casting operation,
    characterised in that
    the oscillating part of the roller segment (130) is the upper frame (132) with the strip guide rollers (136) rotatably mounted thereon, wherein the lower frame (134) is stationary during oscillation of the upper frame (132); or
    the oscillating part of the roller segment (130) is the lower frame (134) with the strip guide rollers (136) rotatably mounted thereon, wherein the upper frame (132) is stationary during oscillation of the lower frame (134); or
    the two, i.e. both the upper frame (132) and the lower frame (134), together with the respective strip guide rollers (136) thereof oscillate asynchronously relative to one another.
  2. Method according to claim 1, characterised in that the strip guide rollers (136) at the upper frame (132) and at the lower frame (134) respectively have a fixed mutual spacing, particularly during oscillation of the upper frame and/or lower frame (134).
  3. Method according to one of the preceding claims, characterised in that for the size A the amplitude (A) of the oscillation is 0 < A ≤ 50 mm.
  4. Method according to claim 3, characterised in that the size of the amplitude (A) is set in accordance with the height of the casting speed.
  5. Method according to any one of the preceding claims, characterised in that for the casting speed vg there applies: 0.17 m/min < vg < 8 m/min, preferably vg > 6m/min.
  6. Method according to any one of the preceding claims, characterised in that for the mass flow m the cast strip there applies: m < 3.5 to/min/m.
  7. Method according to any one of the preceding claims, characterised in that the oscillation is, for example, sinusoidal or trapezium-shaped.
  8. Method according to any one of the preceding claims, characterised in that setting of the amplitude (A) and/or the frequency of the oscillation is carried out on dependence on an instantaneous position of a bulging at the cast strip.
  9. Method according to any one of the preceding claims, characterised in that oscillation takes place horizontally.
  10. Strip guide (120) in a continuous casting plant (100), comprising:
    at least one roller segment (130) with an upper frame (132) and a lower frame (134), wherein a respective plurality of strip guide rollers (136) at a fixed mutual spacing is arranged at each of the upper frame (132) and the lower frame (134), the cast strip being guided in casting direction (G) between the pluralities of strip guide rollers after the casting in a mould (110), comprising:
    a drive device for displacing at least a part of the roller segment during the casting operation, wherein the drive device is constructed in the form of oscillation equipment (140) for oscillation of the part of the roller segment in and against the casting direction (G),
    characterised in that
    the oscillating part of the roller segment (130) is the upper frame (132) with the strip guide rollers (136) rotatably mounted thereon, wherein the lower frame (134) is stationary during oscillation of the upper frame (132); or
    the oscillating part of the roller segment (130) is the lower frame (134) with the strip guide rollers (136) rotatably mounted thereon, wherein the upper frame (132) is stationary during oscillation of the lower frame (134); or
    the two, i.e. both the upper frame (132) and the lower frame (134) together with the respective strip guide rollers (136) thereof oscillate asynchronously relative to one another.
  11. Strip guide (120) according to claim 10, characterised in that the strip guide rollers (136) at the upper frame (132) and at the lower frame (134) respectively have a fixed mutual spacing.
  12. Strip guide (120) according to one of claims 10 and 11, characterised in that for the diameter d of the strip guide rollers (136) there applies: 95 mm < d < 400 mm.
  13. Strip guide (120) according to any one of claims 10 to 12, characterised in that the roller segment (130) is disposed in a horizontal part of the strip guide (120) and the oscillation takes place horizontally.
EP17182119.2A 2016-07-21 2017-07-19 Method for operating a strand guide in a continuous casting system and corresponding strand guide Not-in-force EP3272442B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016213351.9A DE102016213351A1 (en) 2016-07-21 2016-07-21 Method for operating a strand guide in a continuous casting plant and corresponding strand guide

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Publication Number Publication Date
EP3272442A1 EP3272442A1 (en) 2018-01-24
EP3272442B1 true EP3272442B1 (en) 2019-01-02

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EP17182119.2A Not-in-force EP3272442B1 (en) 2016-07-21 2017-07-19 Method for operating a strand guide in a continuous casting system and corresponding strand guide

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EP (1) EP3272442B1 (en)
DE (1) DE102016213351A1 (en)
ES (1) ES2718798T3 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2036266C3 (en) * 1970-07-22 1979-03-29 Schloemann-Siemag Ag, 4000 Duesseldorf A strand guide downstream of a continuous casting mold
EP0946318B1 (en) 1996-11-08 2001-05-23 SMS Demag AG Method and device for continuous thin slab steel casting
ATE243586T1 (en) 1997-11-21 2003-07-15 Sms Demag Ag METHOD AND PLANT FOR CONTINUOUS CASTING OF SLAB
DE102006018757A1 (en) 2006-04-22 2007-10-25 Sms Demag Ag Method for determining the roll spacings of support rollers and strand guide framework of a continuous casting plant for casting liquid metals, in particular liquid steel materials

Non-Patent Citations (1)

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

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Publication number Publication date
ES2718798T3 (en) 2019-07-04
DE102016213351A1 (en) 2018-01-25
EP3272442A1 (en) 2018-01-24

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