EP0114293B1 - Method of and installation for adjusting the taper of small face walls of continuous-casting ingots - Google Patents

Method of and installation for adjusting the taper of small face walls of continuous-casting ingots Download PDF

Info

Publication number
EP0114293B1
EP0114293B1 EP83112501A EP83112501A EP0114293B1 EP 0114293 B1 EP0114293 B1 EP 0114293B1 EP 83112501 A EP83112501 A EP 83112501A EP 83112501 A EP83112501 A EP 83112501A EP 0114293 B1 EP0114293 B1 EP 0114293B1
Authority
EP
European Patent Office
Prior art keywords
narrow side
side wall
side walls
billet
underside
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
Application number
EP83112501A
Other languages
German (de)
French (fr)
Other versions
EP0114293A1 (en
Inventor
Hans-Peter Kaiser
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 Schloemann Siemag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SMS Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Priority to AT83112501T priority Critical patent/ATE23462T1/en
Publication of EP0114293A1 publication Critical patent/EP0114293A1/en
Application granted granted Critical
Publication of EP0114293B1 publication Critical patent/EP0114293B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/168—Controlling or regulating processes or operations for adjusting the mould size or mould taper

Definitions

  • the invention relates to a method for adjusting the taper of the narrow side walls of continuous casting molds, the taper of two narrow side walls arranged between two broad side walls being adapted when the changing strand shrinkage is being cast. (Steel and iron 10/82 p. 77 “Konti Kokille”). In addition, the invention relates to a device for performing the method.
  • the aim is to dissipate heat as uniformly as possible on all sides of the strand so that the strand has a uniform shell thickness on all sides when it leaves the mold.
  • the strand shrinks differently depending on the format, casting speed and material on the narrow and broad sides. It is therefore customary to set the narrow sides of the mold cavity in a converging manner in the direction of the mold exit and to design the broad sides of the mold cavity in parallel or with a casting cone that is different from the narrow sides.
  • the prior art includes a method and a device for adapting the taper of the narrow side walls of the mold to the strand shrinkage which changes with the casting speed during the casting.
  • the position of the narrow side is continuously transmitted to the process computer with a conicity meter, which compares the respective casting conditions with the stored values that define the shrinkage of the strand and, if necessary, automatically adjusts the conicity of the narrow side to the requirements and thus keeps the gap at the mold outlet constant .
  • a major disadvantage of this method is that the actual shrinkage between the mold wall and the strand shell cannot be determined exactly due to uneven, constantly changing conditions of installation and cooling, whereby the setting of a constant shrinkage gap between the strand shell and the narrow side wall of the mold is prevented.
  • the consequences of this are uneven shell growth with the risk of breakthrough and cracking.
  • the invention has for its object to provide a method and an apparatus for performing the method, which result in an optimal and uniform cooling within the mold, especially on the narrow side walls with changing casting parameters, especially the casting speed, the casting temperature and the strand width. This should improve the strand quality and reduce the risk of breakthrough at high casting speeds and changes in casting speed.
  • this is achieved in a method of the type mentioned above in that the underside of each narrow side wall is adjusted with a force causing the contact of the narrow side wall with the edge region of the strand shell and this counteracts the bulging of the strand shell by adjusting the underside of the narrow side wall in accordance with changing strand shrinkage during casting is kept constant.
  • the new process prevents the formation of a shrink gap and the bulging of the strand crust, regardless of the respective casting conditions.
  • the elimination of the shrink gap leads to better cooling, so that the casting speed is increased, the strand quality is improved and the formation of cracks and breakthroughs is counteracted.
  • the underside of the narrow side walls against the strand shell is only started after the start-up head has emerged from the mold.
  • the force between the underside of the narrow side wall and the associated adjusting device is measured, compared with a desired value and, in the event of a deviation, an actuating variable for the adjusting device is formed.
  • the setpoint value of the force acting between the underside of the narrow side wall and the associated adjusting device is advantageously determined from the ferrostatic pressure on the portion of the area of the narrow side wall attributable to the adjusting device, a possible friction of the narrow side wall between the wide side walls and an additional safety factor.
  • the method can be designed in such a way that a support guide for the casting strand narrow sides immediately downstream of the mold is adjusted depending on the respective position of the narrow side walls of the mold. This prevents an offset between the mold and the support guide and thus harmful deformations of the strand shell below the mold.
  • a plate mold is known from DE-B2415224, which forms the preamble of device claim 5, in which narrow side walls arranged between broad side walls are provided with devices for adjusting the mold cavity to different strand widths and with devices for adjusting the casting cone.
  • the Schmais sidewalls are adjusted as a function of the cooling capacity of the mold, with a signal flow from measuring elements via average value and difference value generator to a computer that runs controls the actuators for the taper of the narrow sides. The actual investment conditions between the mold wall and the strand shell are not taken into account.
  • a device for carrying out the method has a pressure measuring cell arranged between the underside of the narrow side wall and the associated adjusting device, a setpoint generator and a computer.
  • a device for carrying out the method consists of a pressure measuring cell arranged between the underside of the narrow side wall and the associated adjusting device, a setpoint generator and a computer.
  • a spindle drive provided with a motor can be provided as an adjusting device for an underside of the narrow side wall.
  • distance measuring devices are provided, the measuring signals of which are fed to the computer to limit the inclination.
  • a cavity which receives the molten steel 1 is formed by two broad side walls 2, 3 and two narrow side walls 4, 5 arranged between them.
  • the melt 1 solidifies on the cooled mold walls 2, 3, 4, 5 to form the strand shell 6.
  • a spindle 7 is articulated in the upper region for setting the casting format and is moved in the axial direction by a motor 8 via a gear 9.
  • the spindle 7 and the gear 9 are mounted on a carrier 10.
  • the narrow side walls 4, 5 are provided in the lower region with an adjusting device which consists of a spindle 13 driven by a motor 11 via a gear 12, which are likewise mounted on the carrier 10.
  • a pressure measuring cell 15 is arranged between a joint 14 attached to the spindle 13 and the underside of the narrow side wall 4 or 5.
  • pressure medium cylinders can be provided as adjusting devices.
  • Pulse generators 18 for measuring the adjustment path from the top and bottom of the narrow side walls 4, 5 are attached to the gears 9, 12.
  • the measurement signals are input to the computer 17 as additional information to limit the inclination.

Abstract

1. Method for the setting of the conicity of narrow side walls (4, 5) of continuous casting moulds, in which the conicity of two narrow side walls (4, 5) arranged between two side walls (2, 3) is adapted during the pouring to the changing billet shrinkage, characterized thereby, that the underside of each narrow side wall (4, 5) is set with a force effecting the contact of the narrow side wall (4, 5) with the edge region of the billet shell (6) and this force counter-acting the bowing-out of the billet shell (6) is kept constant through resetting of the underside of the narrow side wall (4, 5) in correspondence with the billet shrinkage changing during the pouring.

Description

Die Erfindung betrifft ein Verfahren zum Einstellen der Konizität von Schmalseitenwänden von Stranggießkokillen, wobei die Konizität zweier zwischen zwei Breitseitenwänden angeordneten Schmalseitenwände beim Gießen der sich ändernden Strangschrumpfung angepaßt wird. (Stahl und Eisen 10/82 S. 77 «Konti Kokille »). Darüber hinaus betrifft die Erfindung eine Vorrichtung zur Durchführung des Verfahrens.The invention relates to a method for adjusting the taper of the narrow side walls of continuous casting molds, the taper of two narrow side walls arranged between two broad side walls being adapted when the changing strand shrinkage is being cast. (Steel and iron 10/82 p. 77 “Konti Kokille”). In addition, the invention relates to a device for performing the method.

Beim Stranggießen von Stahl wird innerhalb der Kokille auf allen Seiten des Stranges eine möglichst gleichmäßige Wärmeabfuhr angestrebt, damit der Strang beim Verlassen der Kokille allseitig eine gleichmäßige Schalendicke aufweist.When continuously casting steel, the aim is to dissipate heat as uniformly as possible on all sides of the strand so that the strand has a uniform shell thickness on all sides when it leaves the mold.

Beim Stranggießen von Brammenformaten schwindet der Strang, abhängig vom Format, Gießgeschwindigkeit und Material an den Schmal- und Breitseiten, unterschiedlich. Es ist daher üblich, die Schmalseiten des Formhohlraumes in Richtung des Kokillenausganges konvergierend einzustellen und die Breitseiten des Formhohlraumes parallel oder mit einem gegenüber den Schmalseiten unterschiedlichen Gießkonus auszuführen.When continuously casting slab formats, the strand shrinks differently depending on the format, casting speed and material on the narrow and broad sides. It is therefore customary to set the narrow sides of the mold cavity in a converging manner in the direction of the mold exit and to design the broad sides of the mold cavity in parallel or with a casting cone that is different from the narrow sides.

Zum Stand der Technik gehört ein Verfahren und eine Vorrichtung zum Anpassen der Konizität der Schmalseitenwände der Kokille an die sich mit der Gießgeschwindigkeit während des Gießens ändernde Strangschrumpfung. Mit einem Konizitätsmesser wird fortwährend die Lage der Schmalseite an den Prozeßrechner übermittelt, der die jeweiligen Gießbedingungen mit den gespeicherten Werten, die die Schrumpfung des Stranges definieren, vergleicht und bei Bedarf die Konizität der Schmalseite den Erfordernissen automatisch anpaßt und somit den Spalt am Kokillenaustritt konstant hält. (Stahl und Eisen 10/82 S. 77 « Konti Kokille »).The prior art includes a method and a device for adapting the taper of the narrow side walls of the mold to the strand shrinkage which changes with the casting speed during the casting. The position of the narrow side is continuously transmitted to the process computer with a conicity meter, which compares the respective casting conditions with the stored values that define the shrinkage of the strand and, if necessary, automatically adjusts the conicity of the narrow side to the requirements and thus keeps the gap at the mold outlet constant . (Steel and iron 10/82 p. 77 “Konti Kokille”).

Ein wesentlicher Nachteil dieses Verfahrens besteht darin, daß, bedingt durch ungleichmäßige, sich ständig ändernde Anlage- und Abkühlbedingungen, zwischen Kokillenwand und Strangschale die tatsächliche Schrumpfung nicht genau bestimmbar ist, wodurch die Einstellung eines konstanten Schrumpfspaltes zwischen Strangschale und Schmalseitenwand der Kokille verhindert wird. Die Folgen hiervon sind ungleichmäßiges Schalenwachstum mit Durchbruchgefahr und Rißbildung.A major disadvantage of this method is that the actual shrinkage between the mold wall and the strand shell cannot be determined exactly due to uneven, constantly changing conditions of installation and cooling, whereby the setting of a constant shrinkage gap between the strand shell and the narrow side wall of the mold is prevented. The consequences of this are uneven shell growth with the risk of breakthrough and cracking.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung zur Durchführung des Verfahrens zu schaffen, die eine optimale und gleichmäßige Kühlung innerhalb der Kokille, insbesondere an den Schmalseitenwänden bei sich ändernden Gießparametern, speziell der Gießgeschwindigkeit, der Gießtemperatur und der Strangbreite, ergeben. Dadurch soll bei großen Gießgeschwindigkeiten und Gießgeschwindigkeitsänderungen die Strangqualität verbessert und die Durchbruchgefahr vermindert werden.The invention has for its object to provide a method and an apparatus for performing the method, which result in an optimal and uniform cooling within the mold, especially on the narrow side walls with changing casting parameters, especially the casting speed, the casting temperature and the strand width. This should improve the strand quality and reduce the risk of breakthrough at high casting speeds and changes in casting speed.

Nach der Erfindung wird dies bei einem Verfahren der eingangs genannten Art dadurch erreicht, daß die Unterseite jeder Schmalseitenwand mit einer den Kontakt der Schmalseitenwand mit dem Kantenbereich der Strangschale bewirkenden Kraft angestellt und diese der Ausbauchung der Strangschale entgegenwirkende Kraft durch Verstellen der Unterseite der Schmalseitenwand entsprechend der sich beim Gießen ändernden Strangschrumpfung konstant gehalten wird.According to the invention, this is achieved in a method of the type mentioned above in that the underside of each narrow side wall is adjusted with a force causing the contact of the narrow side wall with the edge region of the strand shell and this counteracts the bulging of the strand shell by adjusting the underside of the narrow side wall in accordance with changing strand shrinkage during casting is kept constant.

Mit dem neuen Verfahren wird im Gegensatz zum bekannten Verfahren unabhängig von den jeweiligen Gießbedingungen das Entstehen eines Schrumpfspaltes und das Ausbauchen der Strangkruste verhindert. Der Wegfall des Schrumpfspaltes führt zu einer besseren Abkühlung, so daß die Gießgeschwindigkeit erhöht, die Strangqualität verbessert und der Entstehung von Rissen und Durchbrüchen entgegengewirkt wird. Um ein unkontrolliertes Zusammenfahren der Unterseiten beim Füllen der Kokille zu vermeiden, wird mit der Anstellung der Unterseiten der Schmalseitenwände gegen die Strangschale erst nach dem Austreten des Anfahrkopfes aus der Kokille begonnen.In contrast to the known process, the new process prevents the formation of a shrink gap and the bulging of the strand crust, regardless of the respective casting conditions. The elimination of the shrink gap leads to better cooling, so that the casting speed is increased, the strand quality is improved and the formation of cracks and breakthroughs is counteracted. In order to avoid an uncontrolled movement of the undersides when filling the mold, the underside of the narrow side walls against the strand shell is only started after the start-up head has emerged from the mold.

Gemäß einem weiteren Merkmal der Erfindung wird die Kraft zwischen der Unterseite der Schmalseitenwand und der zugehörigen Verstellvorrichtung gemessen, mit einem Sollwert verglichen und bei einer Abweichung eine Stellgröße für die Verstellvorrichtung gebildet.According to a further feature of the invention, the force between the underside of the narrow side wall and the associated adjusting device is measured, compared with a desired value and, in the event of a deviation, an actuating variable for the adjusting device is formed.

Der Sollwert der zwischen der Unterseite der Schmalseitenwand und der zugehörigen Verstellvorrichtung wirksamen Kraft wird vorteilhaft aus dem ferrostatischen Druck auf den auf die Verstellvorrichtung entfallenden Flächenanteil der Schmalseitenwand, einer eventuellen Reibung der Schmalseitenwand zwischen den Breitseitenwänden und einem zusätzlichen Sicherheitsfaktor bestimmt.The setpoint value of the force acting between the underside of the narrow side wall and the associated adjusting device is advantageously determined from the ferrostatic pressure on the portion of the area of the narrow side wall attributable to the adjusting device, a possible friction of the narrow side wall between the wide side walls and an additional safety factor.

Das Verfahren kann dahingehend ausgestaltet werden, daß eine der Kokille unmittelbar nachgeordnete Stützführung für die Gießstrangschmalseiten in Abhängigkeit von der jeweiligen Stellung der Schmalseitenwände der Kokille verstellt wird. Dadurch wird ein Versatz zwischen Kokille und Stützführung und damit schädliche Deformierungen der Strangschale unterhalb der Kokille vermieden.The method can be designed in such a way that a support guide for the casting strand narrow sides immediately downstream of the mold is adjusted depending on the respective position of the narrow side walls of the mold. This prevents an offset between the mold and the support guide and thus harmful deformations of the strand shell below the mold.

Durch die, den Oberbegriff des Vorrichtungsanspruchs 5 bildende DE-B2415224 ist eine Plattenkokille bekannt, bei der zwischen Breitseitenwänden angeordnete Schmalseitenwände mit Einrichtungen zum Einstellen des Formhohlraumes auf unterschiedliche Strangbreiten und mit Einrichtungen zum Verstellen des Gießkonus versehen sind. Die Verstellung der Schmaiseitenwände erfolgt in Abhängigkeit von der Kühlleistung der Kokille, wobei ein Signalfluß von Meßgliedern über Durchschnittswertbildner und Differenzwertbildner zu einem Rechner läuft, der die Stellglieder für die Konizität der Schmalseiten steuert. Die tatsächlichen Anlagebedingungen zwischen Kokillenwand und Strangschale finden dabei keine Berücksichtigung.A plate mold is known from DE-B2415224, which forms the preamble of device claim 5, in which narrow side walls arranged between broad side walls are provided with devices for adjusting the mold cavity to different strand widths and with devices for adjusting the casting cone. The Schmais sidewalls are adjusted as a function of the cooling capacity of the mold, with a signal flow from measuring elements via average value and difference value generator to a computer that runs controls the actuators for the taper of the narrow sides. The actual investment conditions between the mold wall and the strand shell are not taken into account.

Demgegenüber weist eine erfindungsgemäße Vorrichtung zur Durchführung des Verfahrens eine zwischen der Unterseite der Schmalseitenwand und der zugehörigen Verstellvorrichtung angeordnete Druckmeßzelle, einen Sollwertgeber und einen Rechner auf.In contrast, a device according to the invention for carrying out the method has a pressure measuring cell arranged between the underside of the narrow side wall and the associated adjusting device, a setpoint generator and a computer.

Eine Vorrichtung zur Durchführung des Verfahrens besteht aus einer zwischen der Unterseite der Schmalseitenwand und der zugehörigen Verstellvorrichtung angeordneten Druckmeßzelle, einem Sollwertgeber und einem Rechner.A device for carrying out the method consists of a pressure measuring cell arranged between the underside of the narrow side wall and the associated adjusting device, a setpoint generator and a computer.

Als Verstellvorrichtung für eine Unterseite der Schmalseitenwand kann ein mit Motor versehener Spindeltrieb vorhanden sein.A spindle drive provided with a motor can be provided as an adjusting device for an underside of the narrow side wall.

Zur Registrierung der Schmalseitenstellung sind Wegmesser vorgesehen, deren Meßsignale zur Schrägstellungsbegrenzung dem Rechner zugeführt werden.To register the narrow side position, distance measuring devices are provided, the measuring signals of which are fed to the computer to limit the inclination.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Es zeigen

  • Figur 1 eine Kokille mit geregelter Schmalseitenwandverstellung und
  • Figur 2 einen Querschnitt durch die Kokille zwischen den oberen und den unteren Verstellvorrichtungen.
In the drawing, an embodiment of the invention is shown. Show it
  • Figure 1 is a mold with regulated narrow side wall adjustment and
  • Figure 2 shows a cross section through the mold between the upper and lower adjustment devices.

Bei der dargestellten Stranggießkokille wird ein die Stahlschmelze 1 aufnehmender Hohlraum durch zwei Breitseitenwände 2, 3 und zwei zwischen diesen verstellbar angeordnete Schmalseitenwände 4, 5 gebildet. Die Schmelze 1 erstarrt an den gekühlten Kokillenwänden 2, 3, 4, 5 zur Strangschale 6.In the continuous casting mold shown, a cavity which receives the molten steel 1 is formed by two broad side walls 2, 3 and two narrow side walls 4, 5 arranged between them. The melt 1 solidifies on the cooled mold walls 2, 3, 4, 5 to form the strand shell 6.

An jeder Schmalseitenwand 4 bzw. 5 ist zur Einstellung des Gießformates im oberen Bereich eine Spindel 7 angelenkt, die von einem Motor 8 über ein Getriebe 9 in axialer Richtung bewegt wird. Die Spindel 7 und das Getriebe 9 sind an einem Träger 10 gelagert.On each narrow side wall 4 or 5, a spindle 7 is articulated in the upper region for setting the casting format and is moved in the axial direction by a motor 8 via a gear 9. The spindle 7 and the gear 9 are mounted on a carrier 10.

Zur Formateinstellung und zur Einstellung der Konizität sind die Schmalseitenwände 4, 5 im unteren Bereich mit einer Verstellvorrichtung versehen, die aus einer von einem Motor 11 über ein Getriebe 12 angetriebenen Spindel 13 besteht, die gleichfalls an dem Träger 10 gelagert sind. Zwischen einem an der Spindel 13 angebrachten Gelenk 14 und der Unterseite der Schmalseitenwand 4 bzw. 5 ist eine Druckmeßzelle 15 angeordnet. Alternativ können als Verstellvorrichtungen Druckmittelzylinder vorgesehen sein.To set the format and to adjust the taper, the narrow side walls 4, 5 are provided in the lower region with an adjusting device which consists of a spindle 13 driven by a motor 11 via a gear 12, which are likewise mounted on the carrier 10. A pressure measuring cell 15 is arranged between a joint 14 attached to the spindle 13 and the underside of the narrow side wall 4 or 5. Alternatively, pressure medium cylinders can be provided as adjusting devices.

Die Konizität der Schmalseitenwände 4 und 5 der Kokille wird zur Anpassung an eine geänderte Strangschrumpfung wie folgt verstellt :

  • Sobald ein Anfahrkopf 16 die Kokille verlassen hat, werden die Schmalseitenwände 4, 5 durch die Spindeltriebe 11, 12, 13 gegen die Strangschale 6 geschwenkt. Dabei werden fortlaufend die von Druckmeßzellen 15 ermittelten Meßdaten einem Rechner 17 zum Sollwert-Istwertvergleich zugeführt. Sobald der gemessene Druck mit dem eingespeicherten Sollwert U übereinstimmt, wird im Rechner 17 ein Steuersignal zur Stillsetzung der Motoren 11 gebildet.
The taper of the narrow side walls 4 and 5 of the mold is adjusted as follows to adapt to a changed strand shrinkage:
  • As soon as a start-up head 16 has left the mold, the narrow side walls 4, 5 are pivoted against the strand shell 6 by the spindle drives 11, 12, 13. The measurement data determined by pressure measuring cells 15 are continuously fed to a computer 17 for comparison of the setpoint and actual values. As soon as the measured pressure agrees with the stored target value U, a control signal for stopping the motors 11 is generated in the computer 17.

Beim weiteren Gießen führt eine Änderung der Strangschrumpfung jeweils zu einem Anstieg bzw. Abfall des von den Druckmeßzellen 15 gemessenen Drucks. Hierbei werden in gleicher Weise aus den Abweichungen vom Sollwert U Steuersignale für die Motoren 11 zur Verstellung der Spindeln 13 im Sinne einer Vergrößerung oder Verringerung des Druckes der Schmalseitenwände 4, 5 auf die Strangschale 6 gebildet. Dabei ist der Sollwert U des Druckes derart bemessen, daß es an den Schmalseitenwänden 4, 5 weder zu einer Schrumpfspaltbildung noch zur Ausbauchung der Strangschale 6 kommen kann (Fig. 2).During the further casting, a change in the strand shrinkage in each case leads to an increase or decrease in the pressure measured by the pressure measuring cells 15. Control signals for the motors 11 for the adjustment of the spindles 13 in the sense of an enlargement or reduction thus become the same from the deviations from the setpoint value U. the pressure of the narrow side walls 4, 5 formed on the strand shell 6. The setpoint value U of the pressure is dimensioned such that there is no shrinkage gap formation or bulging of the strand shell 6 on the narrow side walls 4, 5 (FIG. 2).

An den Getrieben 9,12 sind Impulsgeber 18 zur Messung des Verstellweges von Ober- und Unterseite der Schmalseitenwände 4, 5 angebracht. Die Meßsignale werden zur Schrägstellungsbegrenzung dem Rechner 17 als zusätzliche Information eingegeben.Pulse generators 18 for measuring the adjustment path from the top and bottom of the narrow side walls 4, 5 are attached to the gears 9, 12. The measurement signals are input to the computer 17 as additional information to limit the inclination.

Claims (7)

1. Method for the setting of the conicity of narrow side walls (4, 5) of continuous casting moulds, in which the conicity of two narrow side walls (4, 5) arranged between two wide side walls (2, 3) is adapted during the pouring to the changing billet shrinkage, characterised thereby, that the underside of each narrow side wall (4, 5) is set with a force effecting the contact of the narrow side wall (4, 5) with the edge region of the billet shell (6) and this force counter-acting the bowing- out of the billet shell (6) is kept constant through resetting of the underside of the narrow side wall (4, 5) in correspondence with the billet shrinkage changing during the pouring.
2. Method according to claim 1, characterised thereby, that the force between the underside of the narrow side wall (4, 5) and the associated resetting device (13) is measured and compared with a target value (U) and, in case of deviation, a setting magnitude is formed for the resetting device (13).
3. Method according to the claims 1 and 2, characterised thereby, that the target value (U) of the force effective between the underside of the narrow side wall (4, 5) and the associated resetting device (13) is formed from the ferrostatic pressure of the area component of the narrow side wall (4, 5) applicable to the resetting device (13), a possible friction of the narrow side wall (4, 5) between the wide side walls and an additional safety factor.
4. Method according to claim 1, characterised thereby, that a support guide, arranged directly downstream of the mould, for the narrow sides of the cast billet is reset in dependence on the respective setting of the narrow side walls (4, 5) of the mould.
5. Device for the performance of the method according to one of the claims 1 to 3, in which two narrow side walls (4, 5) are arranged between two wide side walls (2, 3) of a continuous casting mould and associated with an upper resetting device (7) determining the billet width and a lower, computer-controlled resetting device (13) determining the conicity, characterised by a pressure-measuring cell (15) arranged between the unserside of a narrow side wall (4, 5) and the associated resetting device (13), a target value generator and a computer (17).
6. Device according to claim 5, characterised thereby, that spindle drives (12, 13) provided with motor (11) are provided as resetting device for the narrow side walls (4, 5).
7. Device according to claim 5, characterised thereby, that travel meters (18), the measurement signals of which are fed to the computer (17), are provided for the recording of the narrow side wall setting.
EP83112501A 1982-12-21 1983-12-13 Method of and installation for adjusting the taper of small face walls of continuous-casting ingots Expired EP0114293B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83112501T ATE23462T1 (en) 1982-12-21 1983-12-13 METHOD AND DEVICE FOR ADJUSTING THE CONICITY OF NARROW SIDE WALLS OF CONTINUOUS CASTING MOLDS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3247207 1982-12-21
DE19823247207 DE3247207A1 (en) 1982-12-21 1982-12-21 METHOD AND DEVICE FOR ADJUSTING THE CONICITY OF NARROW-SIDED WALLS OF CONTINUOUS CASTING CHILLERS

Publications (2)

Publication Number Publication Date
EP0114293A1 EP0114293A1 (en) 1984-08-01
EP0114293B1 true EP0114293B1 (en) 1986-11-12

Family

ID=6181237

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83112501A Expired EP0114293B1 (en) 1982-12-21 1983-12-13 Method of and installation for adjusting the taper of small face walls of continuous-casting ingots

Country Status (4)

Country Link
EP (1) EP0114293B1 (en)
AT (1) ATE23462T1 (en)
DE (2) DE3247207A1 (en)
ES (1) ES527560A0 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4117073A1 (en) * 1991-05-22 1992-11-26 Mannesmann Ag TEMPERATURE MEASUREMENT SLAM CHOCOLATE

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3407294C2 (en) * 1984-02-29 1986-04-24 SMS Schloemann-Siemag AG, 4000 Düsseldorf Device for adjusting narrow mold side walls
DE3643740A1 (en) * 1986-12-20 1988-06-30 Schloemann Siemag Ag STEEL MOLDING CHOCOLATE
DE3721266A1 (en) * 1987-06-27 1989-01-12 Schloemann Siemag Ag ADJUSTABLE CONTINUOUS CHOCOLATE FOR GENERATING PRE-PROFILES FOR CARRIER ROLLING
DE3908328A1 (en) * 1989-03-10 1990-09-13 Mannesmann Ag CONICITY CONTROL DEVICE
JP2639758B2 (en) * 1991-08-01 1997-08-13 新日本製鐵株式会社 How to start slab continuous casting
DE4210771C2 (en) * 1992-04-01 1994-07-21 Preussag Stahl Ag Method and device for producing a profile
CN1052929C (en) * 1992-12-30 2000-05-31 新日本制铁株式会社 Method for starting continuous casting in continuous slab casting and method for setting a dummy bar prier to the start of casting of continuous slab casting
AT405253B (en) * 1994-10-11 1999-06-25 Voest Alpine Ind Anlagen CONTINUOUS CHOCOLATE
DE19748305A1 (en) * 1997-10-31 1999-05-06 Schloemann Siemag Ag Continuous casting mold
AT519154B1 (en) * 2016-09-26 2019-12-15 Primetals Technologies Austria GmbH Regulation of the narrow side taper of a continuous casting mold
DE102017213067A1 (en) * 2017-05-03 2018-11-08 Sms Group Gmbh Method for adjusting a conicity of a mold of a continuous casting plant and apparatus for a continuous casting plant
DE102017111686A1 (en) * 2017-05-30 2018-12-06 Primetals Technologies Austria GmbH Automated adoption of the recorded inclination of side walls of continuous casting molds
CN115338379A (en) * 2022-08-19 2022-11-15 日照钢铁控股集团有限公司 Narrow-face copper plate taper compensation method, device, medium and equipment

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH552423A (en) * 1972-04-18 1974-08-15 Concast Ag METHOD AND DEVICE FOR CONTROLLING HEAT EXTRACTION IN KOKILLEN DURING CONTINUOUS CASTING.
JPS5340631A (en) * 1976-09-27 1978-04-13 Kawasaki Steel Co Method of changing width of casting in continuous casting
AT374128B (en) * 1978-06-14 1984-03-26 Voest Alpine Ag CONTINUOUS CHOCOLATE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4117073A1 (en) * 1991-05-22 1992-11-26 Mannesmann Ag TEMPERATURE MEASUREMENT SLAM CHOCOLATE

Also Published As

Publication number Publication date
ES8500780A1 (en) 1984-11-16
DE3247207A1 (en) 1984-07-05
ATE23462T1 (en) 1986-11-15
DE3367541D1 (en) 1987-01-02
EP0114293A1 (en) 1984-08-01
ES527560A0 (en) 1984-11-16

Similar Documents

Publication Publication Date Title
EP0114293B1 (en) Method of and installation for adjusting the taper of small face walls of continuous-casting ingots
EP0334802B1 (en) Casting equipment for continuous producing metal strips and method
EP0515010B1 (en) Temperature measurement in a slab mould
DE60034273T2 (en) Method and device for casting a metal strand
EP3515634B1 (en) Controlling the narrow-side conicity of a continuous casting mould: method and device
DE3842789A1 (en) CASTING DEVICE FOR A TWO-ROLLING CONTINUOUS CASTING MACHINE
DE3842847A1 (en) CASTING DEVICE FOR A TWO-ROLLING CONTINUOUS CASTING MACHINE
EP0019114B1 (en) Method and apparatus for the continuous casting of several strands
EP0028766B1 (en) Method and device for changing the dimensions of a strand during continuous casting
EP3993921B1 (en) Melt supply for strip casting systems
EP0627968B1 (en) Process for the continous casting of metal, in particular steel for producing billets and blooms
DE3440236C2 (en)
DE3142099A1 (en) METHOD AND DEVICE FOR CONTINUOUSLY CASTING METAL UNDER CONTROLLED LOAD
DE2451645A1 (en) Method and device for pouring molten metal into a receptacle
EP0560024B1 (en) Method for continuous casting of metals
EP0083916B1 (en) Device for the horizontal continuous casting of metals and alloys, especially of steel
DE2853868C2 (en) Process for the continuous casting of steel as well as the correspondingly produced steel strand
EP0383413B1 (en) Continuous-casting method
DE1504740B2 (en) DEVICE FOR REGULATING THE DISTANCE BETWEEN A CASTING ROLLER AND A CASTING CONTAINER
EP0234491B1 (en) Method of terminating the casting operation in a steel strip casting plant
EP1057557A1 (en) Process and device for continuous casting of metal
EP0330646A1 (en) Method of continuously casting a thin strip or a thin slab, and device for carrying out the method
CH646352A5 (en) Apparatus for regulating the secondary cooling in a continuous-casting installation with batchwise smelt supply via a tundish
EP0679460B1 (en) Adjustable electromagnetic continuous casting mould
DE3009697A1 (en) METHOD FOR AUTOMATICALLY CONTROLLING THE OPERATING CONDITION OF THE CHOCOLATE OF METAL CONTINUOUS CASTING PLANTS

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19831213

AK Designated contracting states

Designated state(s): AT BE DE FR GB IT LU NL

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE FR GB IT LU NL

REF Corresponds to:

Ref document number: 23462

Country of ref document: AT

Date of ref document: 19861115

Kind code of ref document: T

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

Ref country code: LU

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

Effective date: 19861231

REF Corresponds to:

Ref document number: 3367541

Country of ref document: DE

Date of ref document: 19870102

ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

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

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19871231

Year of fee payment: 5

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19890206

Year of fee payment: 6

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

Ref country code: FR

Payment date: 19891013

Year of fee payment: 7

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

Ref country code: BE

Effective date: 19891231

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

Ref country code: GB

Payment date: 19891231

Year of fee payment: 7

BERE Be: lapsed

Owner name: SMS SCHLOEMANN-SIEMAG A.G.

Effective date: 19891231

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

Ref country code: NL

Effective date: 19900701

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19901213

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19910830

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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

Ref country code: AT

Payment date: 19931228

Year of fee payment: 11

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

Ref country code: AT

Effective date: 19941213

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

Ref country code: DE

Payment date: 19990217

Year of fee payment: 16

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

Ref country code: DE

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

Effective date: 20001003