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EP0907441B1 - Process for guiding a slab and slab-guide - Google Patents

Process for guiding a slab and slab-guide Download PDF

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Publication number
EP0907441B1
EP0907441B1 EP97931669A EP97931669A EP0907441B1 EP 0907441 B1 EP0907441 B1 EP 0907441B1 EP 97931669 A EP97931669 A EP 97931669A EP 97931669 A EP97931669 A EP 97931669A EP 0907441 B1 EP0907441 B1 EP 0907441B1
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EP
European Patent Office
Prior art keywords
servo
piston
cylinder units
strand
strand guide
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.)
Expired - Lifetime
Application number
EP97931669A
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German (de)
French (fr)
Other versions
EP0907441A1 (en
Inventor
Jakob Wetter
Johannes Schwedmann
Rüdiger BLASK
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.)
SMS Siemag AG
Original Assignee
SMS Demag AG
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Publication date
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Publication of EP0907441A1 publication Critical patent/EP0907441A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12Accessories for subsequent treating or working cast stock in situ
    • B22D11/128Accessories for subsequent treating or working cast stock in situ for removing

Definitions

  • the invention relates to a method for guiding a strand in a continuous caster with a soft reduction line, with the hydraulic servo units the jaw width of continuously set opposite strand guide rollers, as well as the corresponding one Strand guidance for this.
  • Continuous casting plants in particular steel continuous casting plants, use to guide the Strand rolls that limit the thickness of the strand that has not yet hardened and prevent bulging of the strand shell as a result of the ferrostatic internal pressure.
  • Such a strand guide is known from DE 40 22 871 C2, in which the scaffolding parts bear opposite strand guide rollers, by means of a Sliding device against each other up to a system of support devices
  • Counter supports can be tensioned with the different altitudes located support surfaces and are provided with counter support surfaces, the individual Support disks are adjustable by twisting.
  • DE-C-3822939 is a strand guide with hydraulically adjustable and regulated pairs of rollers known, these pairs of rollers of each pair of rollers assigned controllers and a higher-level controller can be controlled.
  • the single ones Regulators have valves.
  • the invention has therefore set itself the goal of a method and a corresponding Show device for guiding a strand of a continuous caster, in which the static caused by the four-point bearing of the strand segment Overdetermination avoided and the resulting strain of the Segment lot parts is reduced.
  • the invention achieves this goal by the characterizing features of Process claim 1 and device claim 4.
  • the pair of cylinders switched with only one servo valve has one for each cylinder Position encoder on. From the signals of the individual position sensors to each other linked servo piston cylinder units, an average is formed which is based on the common position controller acting as a position value is fed.
  • the servo piston cylinder units of the Inlet or the outlet of the strand guide segments linked together.
  • the strand guide segments will be linked in the same way, For example, connect all inlets to a position controller and all Control spouts independently.
  • a defined path value for example a specifiable one Distance when determining the mean value or other continuous casting data another pair of servo piston cylinder units can be linked together become.
  • Figures 1 and 2 show a strand guide segment 81 with the Strand guide rollers 82 to 85 or 87.
  • the strand guide direction is through a Arrow indicated.
  • the upper part and the lower part (not shown in the drawing) of the Strand guide frame 81 is formed by four servo piston cylinder units 11, 15, 21, 25 linked together.
  • the servo piston cylinder units 11, 15, 21, 25 have position sensors 12, 16, 22 and 26, which are connected to position controllers 71 to 74 via measuring lines 75 to 77 are.
  • the servo piston cylinder unit 11 with the servo valve 13 the servo piston cylinder unit 15 with the servo valve 17th each individually controllable, while the servo cylinder units 21 and 25 are in the outlet are linked together with the servo valve 27.
  • FIG. 2 shows only the servo piston cylinder units of the inlet 11, 15 or the outlet 23, 25 linked via hydraulic lines 31, 41 or 32, 42.
  • the servo valves 13, 17 with a servo piston cylinder unit 11 are in the inlet area or 15 or can be linked to both.
  • a single servo valve 24 is provided for the servo piston cylinder units 21 and 25 in FIG.
  • This servo valve 24 is linked to a position controller 72, which is connected to the position sensors 22 and 26 by measuring lines 77 and 78.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Actuator (AREA)
  • Road Signs Or Road Markings (AREA)
  • Artificial Fish Reefs (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
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  • Preliminary Treatment Of Fibers (AREA)
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  • Seal Device For Vehicle (AREA)
  • Die Bonding (AREA)

Abstract

The invention is directed to a process for guiding a strand, especially a steel strand in a continuous casting plant with a soft reduction zone in which hydraulic servo units continuously adjust the gap width between oppositely located strand guide rollers. In a strand guiding segment with 4 servo piston-cylinder units, two adjacent servo piston-cylinder units are adjusted relative to the strand so as to be linked with one another hydraulically. The rest of the servo piston-cylinder units are adjusted independently. The invention is further directed to a strand guide.

Description

Die Erfindung betrifft ein Verfahren zum Führen eines Stranges in einer Stranggießanlage mit einer Soft-Reduction-Strecke, bei der hydraulische Servoeinheiten die Maulweite von gegenüberliegenden Strangführungsrollen stufenlos einstellen, sowie die entsprechende Strangführung hierzu.The invention relates to a method for guiding a strand in a continuous caster with a soft reduction line, with the hydraulic servo units the jaw width of continuously set opposite strand guide rollers, as well as the corresponding one Strand guidance for this.

Stranggießanlagen, insbesondere Stahl-Stranggießanlagen, benutzen zur Führung des Stranges Rollen, die den noch nicht durcherstarrten Strang in seiner Dicke begrenzen und ein Ausbauchen der Strangschale in Folge des ferrostatischen Innendruckes verhindern.Continuous casting plants, in particular steel continuous casting plants, use to guide the Strand rolls that limit the thickness of the strand that has not yet hardened and prevent bulging of the strand shell as a result of the ferrostatic internal pressure.

Üblicherweise werden Gruppen von mindestens 4 Rollenpaaren zu Segmenten zusammengefaßt. Die bogeninnenseitig des Stranges angeordneten Strangführungsrollen sind am Segmentoberteil bzw. am losen Teil befestigt, während die bogenaußenseitig des Stranges liegenden Strangführungsrollen am Segmentunterteil bzw. im festen feil des Segmentes angeordnet sind. Festteil und Losteil des einzelnen Segmentes sind über 4 Zugzylinder miteinander verbunden. Diese sogenannten Klemmzylinder ziehen das Segmentoberteil auf Abstandshalter (Spacer), so daß sich zwischen den gegenüberliegenden Rollen die gewünschte Maulweite ergibt, Diese Maulweite eines solchen Segmentes entspricht der Strangdicke.Usually groups of at least 4 pairs of roles become segments summarized. The strand guide rollers arranged on the inside of the strand are attached to the upper part of the segment or to the loose part, while the outside of the bow of the Strand lying strand guide rollers on the lower part of the segment or in the fixed file of the Segment are arranged. Fixed part and loose part of the individual segment are over 4 Pull cylinder connected to each other. These so-called clamping cylinders pull that Top segment on spacers, so that between the opposite roles gives the desired internal width, this internal width one such segment corresponds to the strand thickness.

Solch eine Strangführung ist aus der DE 40 22 871 C2 bekannt, bei der Gerüstteile, die die einander gegenüberliegende Strangführungsrollen tragen, mittels einer Verschiebeeinrichtung gegeneinander bis zu einer Anlage von Stützeinrichtungen an Gegenstützeinrichtungen spannbar sind, die mit den unterschiedlichen Höhenlagen befindlichen Stützflächen und mit Gegenstützflächen versehen sind, wobei die einzelnen Stützscheiben durch Verdrehen verstellbar sind.Such a strand guide is known from DE 40 22 871 C2, in which the scaffolding parts bear opposite strand guide rollers, by means of a Sliding device against each other up to a system of support devices Counter supports can be tensioned with the different altitudes located support surfaces and are provided with counter support surfaces, the individual Support disks are adjustable by twisting.

Mit einer solchen Einrichtung läßt sich nur eine fixe Maulweite einstellen, die,während des Gießens nicht nachstellbar ist.With such a device, only a fixed jaw width can be set, which, during the Pouring is not adjustable.

Moderne Prozeßtechnologien zur Verbesserung der Produktqualität erfordern aber eine Veränderung der Maulweite während des Gießprozesses. So fordert insbesondere die "soft reduction" im Bereich der Sumpfspitze des Stranges eine keilförmige Einstellung und eine variable Maulweitenveränderung des entsprechenden Segmentes.However, modern process technologies to improve product quality require one Change of the mouth width during the casting process. The "soft reduction "has a wedge-shaped setting and a variable mouth width change of the corresponding segment.

Eine einfache Möglichkeit der Maulweitenveränderung für Segmente mit 4 Klemmzylindern läßt sich dadurch erreichen, daß die Zylinder mit Positionsregelung als servohydraulische Achsen ausgebildet werden. Bei einer solchen Lösung kann auf die sogenannten Spacer verzichtet werden. Die Maulweite des Segmentes wird durch eine entsprechende Soll-Wert-Vorgabe für die 4 positionsgeregelten Kolbenzylindereinheiten vorgegeben. Dabei werden jeweils die beiden Servoeinheiten am Segmenteingang und am Segmentausgang im Gleichlauf geregelt. Durch den Einsatz von insgesamt 4 Servoeinheiten ist dieses System statisch überbestimmt.An easy way to change the mouth width for segments with 4 clamping cylinders can be achieved in that the cylinders with position control as servo-hydraulic Axes are formed. With such a solution, so-called spacers can be used to be dispensed with. The mouth width of the segment is determined by a corresponding target value specification specified for the 4 position-controlled piston-cylinder units. In doing so the two servo units at the segment input and at the segment output in Regulated synchronism. By using a total of 4 servo units, this system is statically overdetermined.

Aus der DE 41 38 740 A1 ist ein Verfahren zum Stranggießen von Brammen oder Blöcken in einer Stranggießanlage mit Soft-Reduction-Strecke bekannt, die einzelnen oder als Segment mittels Hydraulikzylinder gegeneinander und mittels Spindeln in ihre Maulweite zueinander stufenlos einstellbare Rollen aufweist, wobei die Spindeln lastreduziert auf ein gewünschtes Maulweitenmaß verfahrbar sind. Auch dieses über vier Hydraulikzylinder in seiner Position gehaltene Segmentlosteil ist statisch überbestimmt.DE 41 38 740 A1 describes a process for the continuous casting of slabs or blocks in a continuous caster with soft-reduction section known, the individual or as a segment against each other by means of hydraulic cylinders and towards each other by means of spindles has continuously adjustable rollers, the spindles reduced load to a desired one Jaw width are movable. This too, via four hydraulic cylinders in its position held segment part is statically overdetermined.

Schließlich ist aus der DE-C-3822939 eine Strangführung mit hydraulisch verstellbaren und geregelten Rollenpaaren bekannt, wobei diese Rollenpaare von jedem Rollenpaar zugeordneten Reglern und einem übergeordneten Regler gesteuert werden. Die einzelnen Regler weisen Ventile auf. Finally, from DE-C-3822939 is a strand guide with hydraulically adjustable and regulated pairs of rollers known, these pairs of rollers of each pair of rollers assigned controllers and a higher-level controller can be controlled. The single ones Regulators have valves.

Die Erfindung hat sich daher das Ziel gesetzt, ein Verfahren und eine entsprechende Vorrichtung zur Führung eines Stranges einer Stranggießanlage aufzuzeigen, bei der die durch die Vierpunktlagerung des Strangsegmentes hervorgerufene statische Überbestimmung vermieden und die hierdurch hervorgerufene Verspannung der Segmentlosteile reduziert wird. The invention has therefore set itself the goal of a method and a corresponding Show device for guiding a strand of a continuous caster, in which the static caused by the four-point bearing of the strand segment Overdetermination avoided and the resulting strain of the Segment lot parts is reduced.

Die Erfindung erreicht dieses Ziel durch die kennzeichnenden Merkmale des Verfahrensanspruches 1 und des Vorrichtungsanspruches 4.The invention achieves this goal by the characterizing features of Process claim 1 and device claim 4.

Die Unteransprüche geben vorteilhafte Weiterbildungen der Erfindung an.The subclaims indicate advantageous developments of the invention.

Erfindungsgemäß werden bei einem Strangführungssegment mit 4 Servoeinheiten zwei benachbarte Servoeinheiten hydraulisch miteinander verknüpft und die übrigen unabhängig einstellbar belassen. Durch die Parallelschaltung von zwei Zylindern zu einer Einheit entsprechend kommunizierende Röhren mit nur einem Positionsregler wird die mit vier Zylindern gehaltene Ebene statisch bestimmt und in eine Dreipunktlagerung umgewandelt.According to the invention in a strand guide segment with 4 servo units two neighboring servo units hydraulically linked and the rest leave independently adjustable. By connecting two cylinders in parallel tubes communicating with one unit with only one position controller the plane held with four cylinders is determined statically and into one Three-point bearing converted.

Das mit nur einem Servoventil geschaltete Zylinderpaar weist je Zylinder einen Positionsgeber auf. Von den Signalen der einzelnen Positionsgeber der miteinander verknüpften Servokolbenzylindereinheiten wird ein Mittelwert gebildet, der dem auf beide Zylinder wirkenden gemeinsamen Positionsregler als Positionsstellwert zugeführt wird.The pair of cylinders switched with only one servo valve has one for each cylinder Position encoder on. From the signals of the individual position sensors to each other linked servo piston cylinder units, an average is formed which is based on the common position controller acting as a position value is fed.

In einer vorteilhaften Ausgestaltung werden die Servokolbenzylindereinheiten des Einlaufs oder des Auslaufs der Strangführungssegmente miteinander verknüpft. Vorzugsweise wird man die Strangführungssegmente in gleicher Weise verknüpfen, beispielsweise sämtliche Einläufe an einen Positionsregler anschließen und sämtliche Ausläufe unabhängig ansteuern.In an advantageous embodiment, the servo piston cylinder units of the Inlet or the outlet of the strand guide segments linked together. Preferably, the strand guide segments will be linked in the same way, For example, connect all inlets to a position controller and all Control spouts independently.

Bei Überschreiten eines definierten Wegwertes, beispielsweise ein vorgebbarer Abstand bei der Ermittlung des Mittelwertes oder andere stranggießtechnische Daten kann ein anderes Paar von Servokolbenzylindereinheiten miteinander verknüpft werden.If a defined path value is exceeded, for example a specifiable one Distance when determining the mean value or other continuous casting data another pair of servo piston cylinder units can be linked together become.

Ein Beispiel der Erfindung ist in der beiliegenden Zeichnung dargelegt. Dabei zeigen:

Figur 1
ein Schema einer Strangführung mit beliebig verknüpfbaren Servoeinheiten
Figur 2
ein Schema einer Strangführung mit einem Strangeinlauf bzw. -auslauf verknüpften Servoeinheiten
An example of the invention is set out in the accompanying drawing. Show:
Figure 1
a diagram of a strand guide with any connectable servo units
Figure 2
a diagram of a strand guide with a strand inlet or outlet linked servo units

Die Figuren 1 und 2 zeigen ein Strangführungssegment 81 mit den Strangführungsrollen 82 bis 85 bzw. 87. Die Strangführungsrichtung ist durch einen Pfeil angegeben.Figures 1 and 2 show a strand guide segment 81 with the Strand guide rollers 82 to 85 or 87. The strand guide direction is through a Arrow indicated.

Das Oberteil und das Unterteil (zeichnerisch nicht dargestellt) des Strangführungsgerüstes 81 ist durch vier Servokolbenzylindereinheiten 11, 15, 21, 25 miteinander verknüpft.The upper part and the lower part (not shown in the drawing) of the Strand guide frame 81 is formed by four servo piston cylinder units 11, 15, 21, 25 linked together.

Die Servokolbenzylindereinheiten 11, 15, 21, 25 weisen Positionsgeber 12, 16, 22 und 26 auf, die über Meßleitungen 75 bis 77 mit Positionsreglern 71 bis 74 verbunden sind.The servo piston cylinder units 11, 15, 21, 25 have position sensors 12, 16, 22 and 26, which are connected to position controllers 71 to 74 via measuring lines 75 to 77 are.

In der Figur 1 sind die Kolbenflächen der Servokolbenzylindereinheiten 11, 15, 21 und 25 über Hydraulikleitungen 31 bis 38 und die Ringflächen über Hydraulikleitungen 41 bis 48 verbunden. Die Kolbenflächenhydraulikleitungen 31 bis 38 sind durch Absperrorgange 51 bis 58 und die Ringflächen-Hydraulikleitungen 41 bis 48 sind durch Hydraulikleitungen 61 bis 68 absperrbar.In Figure 1, the piston surfaces of the servo piston cylinder units 11, 15, 21 and 25 via hydraulic lines 31 to 38 and the ring surfaces via hydraulic lines 41 connected to 48. The piston surface hydraulic lines 31 to 38 are through Shut-off valves 51 to 58 and the annular surface hydraulic lines 41 to 48 are lockable by hydraulic lines 61 to 68.

In der vorliegenden schematischen Schaltung ist die Servokolbenzylindereinheit 11 mit dem Servoventil 13, die Servokolbenzylindereinheit 15 mit dem Servoventil 17 jeweils einzeln ansteuerbar, während im Auslauf die Servozylindereinheiten 21 und 25 mit dem Servoventil 27 gemeinsam verknüpft sind.In the present schematic circuit, the servo piston cylinder unit 11 with the servo valve 13, the servo piston cylinder unit 15 with the servo valve 17th each individually controllable, while the servo cylinder units 21 and 25 are in the outlet are linked together with the servo valve 27.

In der Figur 2 sind ausschließlich die Servokolbenzylindereinheiten des Einlaufs 11, 15 bzw. des Auslaufs 23, 25 über Hydraulikleitungen 31, 41 bzw. 32, 42 verknüpft.FIG. 2 shows only the servo piston cylinder units of the inlet 11, 15 or the outlet 23, 25 linked via hydraulic lines 31, 41 or 32, 42.

Im Einlaufbereich sind die Servoventile 13, 17 mit einer Servokolbenzylindereinheit 11 bzw. 15 oder jeweils mit beiden verknüpfbar. Zur Aufschaltung eines Servoventils 13 oder 17 auf die Servokolbenzylindereinheiten 11 und 15 sind die Absperrorgane 53, 63 zu öffnen und das jeweils nicht in Betrieb befindliche Servoventil durch geeignete Hydraulikeinheiten abzusperren. The servo valves 13, 17 with a servo piston cylinder unit 11 are in the inlet area or 15 or can be linked to both. For connecting a servo valve 13 or 17 on the servo piston cylinder units 11 and 15 are the shut-off elements 53, 63 and open the servo valve that is not in operation by a suitable one Shut off hydraulic units.

Bei der Aufschaltung eines Servoventils 13 oder 17 auf beide Servokolbenzylindereinheiten 11, 25 ist dieses mit Positionsreglern 73 oder 74 verbunden und die einzelnen Positionsregler 73 oder 74 sind bei der gemeinsamen Aufschaltung mit beiden Positionsgebern 12 und 16 meßtechnisch über die Meßleitungen 75 bzw. 76 verknüpft.When connecting a servo valve 13 or 17 to both Servo piston cylinder units 11, 25 this is with position controllers 73 or 74 connected and the individual position controllers 73 or 74 are at the common Activation with both position sensors 12 and 16 using measuring technology Measuring lines 75 and 76 linked.

Im Auslauf des Strangführungsgerüstes 81 ist in der Figur 2 nur ein einziges Servoventil 24 für die Servokolbenzylindereinheit 21 und 25 vorgesehen. Dieses Servoventil 24 ist mit einem Positionsregler 72 verknüpft, der über Meßleitungen 77 und 78 mit den Positionsgebern 22 und 26 meßtechnisch in Verbindung steht. Einlauf Strangführungssegment 11 Servokolbenzylindereinheit links 12 Positionsgeber (11) 13 Servoventil (11) 15 Servokolbenzylindereinheit rechts 16 Positionsgeber (15) 17 Servoventil (15) Auslauf Strangführungssegment 21 Servokolbenzylindereinheit links 22 Positionsgeber (21) 23 Servoventil (21) 24 Servoventil (21, 25) 25 Servokolbenzylindereinheit rechts 26 Positionsgeber (25) 27 Servoventil (25) 31 - 38 Hydraulikleitung Kolbenfläche 41 - 48 Hydraulikleitung Ringfläche 51 - 58 Absperrorgan Hydraulikleitung Kolbenfläche 61 - 68 Hydraulikleitung Ringfläche Position (Maulweite) 71 - 74 Positionsregler 75 - 77 Meßleitung Strangführung 81 Strangführungssegment 82 - 87 Strangführungsrollen In the outlet of the strand guide frame 81, only a single servo valve 24 is provided for the servo piston cylinder units 21 and 25 in FIG. This servo valve 24 is linked to a position controller 72, which is connected to the position sensors 22 and 26 by measuring lines 77 and 78. Inlet strand guide segment 11 Servo piston cylinder unit on the left 12th Position transmitter (11) 13 Servo valve (11) 15 Servo piston cylinder unit on the right 16 Position transmitter (15) 17th Servo valve (15) Runout strand guide segment 21 Servo piston cylinder unit on the left 22 Position transmitter (21) 23 Servo valve (21) 24th Servo valve (21, 25) 25th Servo piston cylinder unit on the right 26 Position transmitter (25) 27 Servo valve (25) 31-38 Hydraulic line piston surface 41-48 Hydraulic line ring surface 51-58 Shut-off device hydraulic line piston surface 61-68 Hydraulic line ring surface Position (mouth width) 71-74 Position controller 75-77 Measurement line Strand guide 81 Strand guide segment 82-87 Strand guide rollers

Claims (8)

  1. Method of guiding a strand in a continuous casting plant having a soft reduction section, in which hydraulic servo-units set in an infinitely variable manner the width of aperture of opposing strand guide rollers, characterised in that in a strand guide segment with 4 servo-piston-cylinder units two adjacent servo-piston-cylinder units, hydraulically coupled together, are applied to the strand and the remaining servo-piston-cylinder units are used independently.
  2. Method according to claim 1, characterised in that the position of the two servo-piston-cylinder units coupled together is detected, is compared to reference values, and according to specifiable data are controlled in accordance with a middle value.
  3. Method according to claim 2, characterised in that when specified corner values are exceeded, another pair of 4 servo-piston-cylinder units are coupled together.
  4. Strand guide of a continuous casting plant for casting steel with a soft reduction section, in which hydraulic servo-units set in an infinitely variable manner the width of aperture of opposing strand guide rollers, wherein the servo-piston cylinder units are coupled together in terms of control technology by locators, for carrying out the method according to claim 1, characterised in that hydraulic lines (31-38, 41-48) are provided, which connect the ring surfaces and the piston surfaces of two adjacent servo-piston-cylinder units (11, 15, 21, 25) with a common servo-valve (13, 17, 23, 27, 24), and in that at least the locators (12, 16, 22, 26) of the servo-piston-cylinder units (11,15, 21, 25) connected to a common servo-valve (13, 17, 23, 27, 24) can be coupled together in terms of control technology in such a manner that two adjacent servo-piston-cylinder units (11, 15 or 21, 25), coupled together hydraulically, are applied to the strand, and the remaining cylinder units (21, 25 or 11, 15) are applicable independently.
  5. Strand guide according to claim 4, characterised in that the hydraulic lines (31-38, 41-48) are lockable by locking elements (51-58, 61-68) in such a manner that two adjacent servo-piston-cylinder units are capable of being coupled together hydraulically and in terms of control, and the remaining two servo-piston-cylinder units are usable independently.
  6. Strand guide according to claim 5, characterised in that the hydraulic lines, connected to the ring and piston faces, of the servo-piston-cylinder units of the inlet (11, 15) and/or of the outlet (21, 25) are connectable together.
  7. Strand guide according to claim 6, characterised in that the hydraulic lines (31-38, 41-48) are connected to servo-valves (13, 17, 23, 27) which can be each turned off individually.
  8. Strand guide according to claim 6, characterised in that the hydraulic lines of the inlet (31, 41) or of the outlet (32, 42) are connected to a single servo-valve (24).
EP97931669A 1996-06-28 1997-06-23 Process for guiding a slab and slab-guide Expired - Lifetime EP0907441B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19627336A DE19627336C1 (en) 1996-06-28 1996-06-28 Guiding a cast strip in e.g. steel strip casting units
DE19627336 1996-06-28
PCT/DE1997/001342 WO1998000253A1 (en) 1996-06-28 1997-06-23 Process for guiding a slab and slab-guide

Publications (2)

Publication Number Publication Date
EP0907441A1 EP0907441A1 (en) 1999-04-14
EP0907441B1 true EP0907441B1 (en) 2001-07-25

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EP97931669A Expired - Lifetime EP0907441B1 (en) 1996-06-28 1997-06-23 Process for guiding a slab and slab-guide

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US (1) US6216769B1 (en)
EP (1) EP0907441B1 (en)
JP (1) JP3069376B2 (en)
KR (1) KR100314993B1 (en)
CN (1) CN1072062C (en)
AT (1) ATE203439T1 (en)
AU (1) AU3536797A (en)
BR (1) BR9709991A (en)
CA (1) CA2258883C (en)
DE (2) DE19627336C1 (en)
ES (1) ES2158572T3 (en)
RU (1) RU2184636C2 (en)
WO (1) WO1998000253A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1486275A1 (en) * 2003-06-14 2004-12-15 SMS Demag Aktiengesellschaft Method and continuous casting machine for calibrating and controlling roll gaps of guide roller segments or driving rolls

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19745056A1 (en) * 1997-10-11 1999-04-15 Schloemann Siemag Ag Process and plant for producing slabs in a continuous caster
DE19809807C2 (en) * 1998-03-09 2003-03-27 Sms Demag Ag Setting process for a roller segment of a continuous caster
DE19824366A1 (en) 1998-05-30 1999-12-02 Schloemann Siemag Ag Strand guide segment for slab caster
DE19836843A1 (en) * 1998-08-14 2000-02-17 Schloemann Siemag Ag Apparatus for hydraulic setting of the rolls of billet guide segments of a continuous casting installation comprises switching valves connecting the hydraulic cylinder units to pressure sources and sinks
DE10025452A1 (en) * 2000-05-23 2001-11-29 Sms Demag Ag Method and device for placing one or more roller segments in a continuous casting installation for metals, in particular for steel materials
DE10106252A1 (en) 2001-02-10 2002-08-14 Sms Demag Ag Continuous routing of a continuous caster as well as setting procedures for its roller segments
DE10236367A1 (en) 2002-08-08 2004-02-19 Sms Demag Ag Dynamic control of a casting strand made from steel on both sides of roll segments used in a continuous casting installation comprises using the roll segments in a cold strand, hot strand and/or soft reduction region
DE10359380A1 (en) * 2003-12-18 2005-07-14 Sms Demag Ag Method and continuous casting machine for setting and controlling the roll gaps of support roll segments or pairs of pairs of rolls during the casting of liquid metals, in particular of liquid steel materials
DE102005028711A1 (en) * 2005-06-20 2006-12-28 Siemens Ag Process to regulate by algorithm the operation of an adjustable roller segment receiving extruded metal and determine output dimensions
DE102005028703A1 (en) * 2005-06-20 2006-12-28 Siemens Ag Method for controlling and / or controlling a Anstellsegmentes in a continuous casting and apparatus therefor
CN100493772C (en) * 2005-07-28 2009-06-03 西安重型机械研究所 Hydraulic system for casting and rolling and dynamic soft reduction
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JP3069376B2 (en) 2000-07-24
BR9709991A (en) 1999-08-10
US6216769B1 (en) 2001-04-17
CA2258883C (en) 2002-08-20
RU2184636C2 (en) 2002-07-10
DE59704137D1 (en) 2001-08-30
CN1222874A (en) 1999-07-14
KR20000022303A (en) 2000-04-25
CA2258883A1 (en) 1998-01-08
ATE203439T1 (en) 2001-08-15
JP2000503597A (en) 2000-03-28
AU3536797A (en) 1998-01-21
KR100314993B1 (en) 2002-02-28
EP0907441A1 (en) 1999-04-14
WO1998000253A1 (en) 1998-01-08
CN1072062C (en) 2001-10-03
DE19627336C1 (en) 1997-09-18
ES2158572T3 (en) 2001-09-01

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