EP0010728A1 - Continuous-casting assembly with an oscillating mould - Google Patents

Continuous-casting assembly with an oscillating mould Download PDF

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Publication number
EP0010728A1
EP0010728A1 EP79104120A EP79104120A EP0010728A1 EP 0010728 A1 EP0010728 A1 EP 0010728A1 EP 79104120 A EP79104120 A EP 79104120A EP 79104120 A EP79104120 A EP 79104120A EP 0010728 A1 EP0010728 A1 EP 0010728A1
Authority
EP
European Patent Office
Prior art keywords
support
mold
machine base
base frame
upper section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP79104120A
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German (de)
French (fr)
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EP0010728B1 (en
Inventor
Bernhard Knell
Adalbert Röhrig
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 Concast AG
Original Assignee
Concast Holding AG
Concast AG
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Filing date
Publication date
Application filed by Concast Holding AG, Concast AG filed Critical Concast Holding AG
Priority to AT79104120T priority Critical patent/ATE174T1/en
Publication of EP0010728A1 publication Critical patent/EP0010728A1/en
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Publication of EP0010728B1 publication Critical patent/EP0010728B1/en
Expired legal-status Critical Current

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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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/053—Means for oscillating the moulds

Definitions

  • the invention relates to a continuous casting plant for steel with an oscillating continuous mold and at least partially curved support guide for the strand, the support guide following a first zone of the support guide being fastened to a machine base frame
  • first zone of the support guide is held by a carrier attached to the machine base frame and sliding against the mold.
  • the support guide following the first zone is also attached to the machine base frame.
  • the mold and the first zone can be removed upwards. Repairs to the moving parts of the oscillation mechanism, such as bearings of the steering lever or mold saddle, must be carried out in the system itself or by removing several bearing bolts of the handlebars that determine the oscillation movement. Such work is time-consuming and increases the downtime of such systems.
  • the aim of the invention is a continuous caster which overcomes the disadvantages mentioned and in which both individual machine parts, such as a mold with or without a first support guide zone, and an entire machine group, consisting of mold, first support guide zone, mold table and oscillation support, are quickly removed from one unit - and can be installed again. Furthermore, this continuous caster should be precisely aligned at the transition points between the mold and the first zone or between the first zone and the subsequent zone when the machine is hot and cold.
  • this object is achieved in that an upper section of the machine base frame and a support frame for the mold and the first zone of the support guide are arranged at least partially overlapping and on their undersides each is supported on a common foundation for both and that the upper section of the machine base frame in the upper end region and the support frame for the mold are movably supported at a common support point in the strand running direction.
  • the continuous caster according to the invention allows in one Failure trap, such as breakthrough, the removal of the mold with or without the first zone. Without significant additional work, however, all elements of the oscillation mechanism and the mold table can be removed and overhauled in the workshop. If there are appropriate replacement sets, repair work on the oscillation mechanism can be carried out without significant downtimes of the system.
  • Another advantage of this construction is that the clearly defined attachment points, both of the support frame for the mold and the first zone, as well as the upper section of the machine base frame ensure dislocation-free transitions in the strand guide, so that such continuous casting plants are also suitable for casting sensitive steels are.
  • the support at the common support point can be selected in various ways.
  • a preferred solution is seen according to a feature of the invention in that the upper section of the machine base frame is connected in its upper end region to the support frame for the mold via sliding block guides movable in the direction of the strand and that the common support point is provided with further sliding block guides arranged on the raised foundation.
  • the upper section of the machine base frame is supported indirectly via the support frame at the common support point.
  • the upper section of the machine base frame and the support frame can be individually supported directly on a concrete foundation.
  • the invention proposes to pivotally support the upper section of the machine base frame and the support frame for the mold on the undersides of the foundation on axes arranged transversely to the strand running direction and parallel to the curved support surfaces of the strand web.
  • the invention recommends that the swivel axes provided as foundation parts on the upper section of the machine base frame and on the support frame are aligned with one another.
  • the arrangement of a common swivel axis represents an economical and precise solution for a foundation design. Instead of a direct arrangement of the swivel axis on the foundation, they can advantageously be supported indirectly on the foundation via the machine base frame.
  • the invention recommends that they be articulated at both ends and arranged at approximately the same height. This results in a statically clearly defined bracket of high accuracy.
  • 1 and 2, 3 shows an oscillating continuous mold of a continuous casting plant for steel.
  • the mold sits on a mold table 4 which is connected on each side via two links 5 and 6 to a support frame 7 for the mold 3 and a first zone 10 of the support guide, which frame is attached to the outside of the curved support guide.
  • 1'-e oscillation path of the mold 3 is determined by the pivoting movement of the links 5 and 6.
  • the link 6 is connected via an extension to a drive lever 9 of the oscillation drive.
  • the first, fixed support guide zone 10 is suspended from the support frame 7 by means of supports 11 and guided relative to the mold 3 via slide guides 13 attached to the mold table 4.
  • the support guide segments 14 following the first support guide zone 10 are fastened to an upper section 15 of a machine base frame 16 or to the machine base frame 16 itself.
  • the machine base frame 16 is supported on a foundation 19 via axes 18.
  • the support frame 7 and the machine base frame 16 each consist of two interconnected side walls.
  • the support frame 7 and the upper section 15 of the machine base frame 16 are likewise pivotable on an axis 22 arranged transversely to the strand running direction 20 and parallel to the curved support surface of a strand track 21 supported bar. It is immaterial to the invention whether the support frame 7 and the upper section 15 of the machine base frame 16 rest directly or indirectly on the foundation 19 via the machine base frame 16.
  • the axes 22 are provided continuously for the support frame 7 and for the upper section 15 of the machine base frame 16.
  • separate axes for the support frame 7 and the upper section 15 of the machine base frame 16 are also conceivable, which are arranged approximately in alignment with one another. Instead of the axes 22, other rigid or pivotable support devices can also be used.
  • Anchor rods 23 connect the support frame 7 and anchor rods 24 connect the upper section 15 of the machine base frame 16 to a common support point 17 which has support points 25 and 26 which are raised from the foundation.
  • the support frame 7 and the upper section 15 of the machine base frame 16 are thus mutually independently connected to the foundation.
  • the links 5 and 6 are attached to the outside of the arched support guide. But it is also possible to mount the support frame 7 and the upper section 15 of the machine base frame 16 on the inside of the arcuate support guide. Alternatively, this guide concept can be used for the oscillation movement of the mold, but also for straight molds and subsequently only partially bent support guides. Instead of the oscillation guide shown in this example by means of links 5, 6, other known oscillation guides and oscillation drives can also be used.
  • the support points 25 and 26 attached to the raised foundation can also be attached to a correspondingly strong, vertical support beam of the machine or hall structure. It is essential that all anchor rods are articulated to the common support point 17, so that there is no relative movement between the support point 17 or the support points 25 and 26.
  • the mold 3, the first zone 10, the mold table 4 or the support frame 7 can be exchanged either as a complete exchange unit or as individual parts. Also, only the mold 3 and the first zone 10 can be removed and reinstalled together.
  • a crane suspension 31 is advantageously used to remove the entire exchange unit.
  • the anchor rods 23 and the link 6 are designed at their ends for rapid engagement and disengagement of the connecting bolts 32 and 33, respectively.
  • the oscillation lever 9 is held in the working position, for example, by a spring 35.
  • a force device (not shown) can be used to press against the force of the spring 35.
  • a common change of the parts mentioned by means of the crane suspension 31 can take place in 3 to 5 hours, for example.
  • FIG. 3 shows a further example of a fastening of the upper section 15 of the machine base frame 16 in the upper end region and of the support frame 7 for the mold 3 the common base 17 shown.
  • the mold, first support guide zone and support guide segment have been omitted from FIG. 3.
  • the common support point 17 consists of a bracket 30 attached to the raised foundation or to a steel frame, to which a sliding block 34 is articulated.
  • This sliding block 34 interacts with the support frame 7 so that it can expand and contract freely between its two attachment points when the temperature changes.
  • the two frames 7, 15 are movable in the strand running direction at the common support point 17 and are supported without play transversely to the strand running direction.
  • the upper section 15 of the machine base frame 16 is supported indirectly via the support frame 7 by means of a further sliding block guide 36 at the common support point 17.
  • the sliding block guide 36 also allows an expansion movement in the direction of the strand.
  • the support frame 7 is generally longer than the upper section 15 of the machine base frame 16 and overlaps the upper section 15 with part of its length. This upper section 15 is usually overlapped in its entire length.
  • the two frames 7 and 15 are each individually supported on a foundation 19 common to both frames 7, 15, the axes 22 being considered as part of the foundation, although in the example shown they rest on the machine base frame 16.
  • the frame parts 7 and 15 could also be supported directly on the concrete foundation 19.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Machine Tool Units (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Body Structure For Vehicles (AREA)
  • Braking Arrangements (AREA)
  • Mold Materials And Core Materials (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

In order to improve disassembly of the oscillation mechanism at a continuous casting installation, the continuous casting mold and the first support guide zone, and at the same time to obtain a support guide arrangement free of dislocation at the transition location, an upper section of the machine base frame and a support frame for the mold and the first zone of the support guide arrangement are at least partially overlappingly arranged. The underside of the frames are supported upon a foundation which is common to such frames. The upper section or portion of the machine base frame at its upper end region and the support frame for the continuous casting mold are movably supported in the direction of travel of the continuously cast strand at a common support location.

Description

Die Erfindung betrifft eine Stranggiessanlage für Stahl mit oszillierender Durchlaufkokille und mindestens teilweise gebogener Stützführung für den Strang, wobei die einer ersten Zone der Stützführung nachfolgende Stützführung an einem Maschinengrundrahmen befestigt istThe invention relates to a continuous casting plant for steel with an oscillating continuous mold and at least partially curved support guide for the strand, the support guide following a first zone of the support guide being fastened to a machine base frame

Es ist bekannt, die Kokille mittels zwei Parallel-Lenkern an einem Träger der Giessbühnenstruktur zu befestigen und die der Kokille nachfolgenden Stützführungen mit einem andern Träger der Giessbühnenstruktur zu verbinden. Je nach Belastung der Giessbühne durch Zwischengefässwagen, Pfannenwagen etc. sind elastische Verformungen an der Giessbühnenstruktur möglich. Durch ungleiche Erwärmung einzelner Strukturteile während des Giessbetriebes können zusätzliche ungleiche Ausdehnungen an solchen Teilen auftreten. Die genannten Verformungen und Ausdehnungen können Versetzungen von Stützführungsteilen entlang der Strangbahn, insbesondere zwischen Kokille und erster Zone der Stützführung, verursachen, was zu Strangfehlern führen kann.It is known to attach the mold to a support of the casting platform structure by means of two parallel links and to connect the support guides following the mold to another support of the casting platform structure. Depending on the load on the casting platform by intermediate vessel trolleys, ladle trolleys, etc., elastic deformations on the casting platform structure are possible. Due to uneven heating of individual structural parts during the casting operation, additional uneven expansion can occur on such parts. The deformations and expansions mentioned can cause displacements of support guide parts along the strand path, in particular between the mold and the first zone of the support guide, which can lead to strand defects.

Auch bei einer andern Stranggiessanlage ist es bekannt, die Oszillationsbahn der Kokille durch am Maschinengrundrahmen befestigte Lenker zu bestimmen, wobei mindestens ein Lenker mit einem Oszillationsantrieb verbunden ist. Die der Kokille unmittelbar nachfolgende nicht oszillierende,erste Zone der Stützführung wird von einem am Maschinengrundrahmen befestigten Träger gehalten und gegenüber der Kokille gleitend geführt. Die der ersten Zone nachfolgende Stützführung wird ebenfalls am Maschinengrundrahmen befestigt. Bei dieser Stranggiessanlage können die Kokille und die erste Zone nach oben ausgebaut werden. Reparaturen an den beweglichen Teilen des Oszillationsmechanismus, wie Lager der Lenkhebel oder Kokillensattel, müssen in der Anlage selbst oder durch Entfernen mehrerer Lagerbolzen der die Oszillationsbewegung bestimmenden Lenker bewerkstelligt werden. Solche Arbeiten sind zeitaufwendig und erhöhen die Stillstandszeiten von solchen Anlagen.In another continuous caster, it is known to determine the oscillation path of the mold by means of links attached to the machine base frame, at least one link being connected to an oscillation drive. The one immediately following the mold does not oscillate Rende, first zone of the support guide is held by a carrier attached to the machine base frame and sliding against the mold. The support guide following the first zone is also attached to the machine base frame. In this continuous caster, the mold and the first zone can be removed upwards. Repairs to the moving parts of the oscillation mechanism, such as bearings of the steering lever or mold saddle, must be carried out in the system itself or by removing several bearing bolts of the handlebars that determine the oscillation movement. Such work is time-consuming and increases the downtime of such systems.

Ziel der Erfindung ist eine Stranggiessanlage, die die genannten Nachteile überwindet und bei der sowohl einzelne Maschinenteile, wie Kokille mit oder ohne erster Stützführungszone, als auch eine ganze Maschinengruppe, bestehend aus Kokille, erster Stützführungszone, Kokillentisch und Oszillations-Support als komplette Einheit rasch aus- und wieder einbaubar ist. Im weitern soll diese Stranggiessanlage an den Uebergangsstellen zwischen Kokille und erster Zone bzw. zwischen der ersten Zone und der nachfolgenden Zone im Warm- und Kaltzustand der Maschine genau fluchten.The aim of the invention is a continuous caster which overcomes the disadvantages mentioned and in which both individual machine parts, such as a mold with or without a first support guide zone, and an entire machine group, consisting of mold, first support guide zone, mold table and oscillation support, are quickly removed from one unit - and can be installed again. Furthermore, this continuous caster should be precisely aligned at the transition points between the mold and the first zone or between the first zone and the subsequent zone when the machine is hot and cold.

Bei einer Stranggiessanlage gemäss dem Oberbegriff wird diese Aufgabe dadurch gelöst, dass ein oberer Abschnitt des Maschinengrundrahmens und ein Tragrahmen für die Kokille und die erste Zone der Stützführung mindestens teilweise überschneidend angeordnet und auf ihren Unterseiten jeder für sich auf einem für beide gemeinsamen Fundament abgestützt sind und dass der obere Abschnitt des Maschinengrundrahmens im oberen Endbereich und der Tragrahmen für die Kokille an einer gemeinsamen Stützstelle in Stranglaufrichtung bewegbar abgestützt sind.In a continuous caster according to the preamble, this object is achieved in that an upper section of the machine base frame and a support frame for the mold and the first zone of the support guide are arranged at least partially overlapping and on their undersides each is supported on a common foundation for both and that the upper section of the machine base frame in the upper end region and the support frame for the mold are movably supported at a common support point in the strand running direction.

Die erfindungsgemässe Stranggiessanlage erlaubt in einem Störungsfalle, wie beispielsweise Durchbruch, das Entfernen der Kokille mit oder ohne erster Zone. Ohne wesentliche Mehrarbeit können aber bei Bedarf auch alle Elemente des Oszillationsmechanismus und der Kokillentisch ausgebaut und in der Werkstatt überholt werden. Bei Vorliegen entsprechender Wechselgarnituren können Reparaturarbeiten am Oszillationsmechanismus ohne wesentliche Stillstandszeiten der Anlage durchgeführt werden. Ein weiterer Vorteil dieser Konstruktion liegt noch darin, dass die klar definierten Befestigungspunkte, sowohl des Tragrahmens für die Kokille und der ersten Zone, als auch des oberen Abschnittes des Maschinengrundrahmens versetzungsfreie Uebergänge in der Strangführung sicherstellen, so dass solche Stranggiessanlagen auch zum Giessen empfindlicher Stähle geeignet sind.The continuous caster according to the invention allows in one Failure trap, such as breakthrough, the removal of the mold with or without the first zone. Without significant additional work, however, all elements of the oscillation mechanism and the mold table can be removed and overhauled in the workshop. If there are appropriate replacement sets, repair work on the oscillation mechanism can be carried out without significant downtimes of the system. Another advantage of this construction is that the clearly defined attachment points, both of the support frame for the mold and the first zone, as well as the upper section of the machine base frame ensure dislocation-free transitions in the strand guide, so that such continuous casting plants are also suitable for casting sensitive steels are.

Die Abstützung an der gemeinsamen Stützstelle kann auf verschiedene Weise gewählt werden. Eine bevorzugte Lösung wird nach einem Merkmal der Erfindung darin gesehen, dass der obere Abschnitt des Maschinengrundrahmens in seinem oberen Endbereich mit dem Tragrahmen für die Kokille über in Stranglaufrichtung bewegliche Gleitsteinführungen verbunden ist und dass die gemeinsame Stützstelle mit am hochgezogenen Fundament angeordneten weiteren Gleitsteinführungen versehen ist. Der obere Abschnitt des Maschinengrundrahmens wird dabei indirekt über den Tragrahmen an der gemeinsamen Stützstelle abgestützt.The support at the common support point can be selected in various ways. A preferred solution is seen according to a feature of the invention in that the upper section of the machine base frame is connected in its upper end region to the support frame for the mold via sliding block guides movable in the direction of the strand and that the common support point is provided with further sliding block guides arranged on the raised foundation. The upper section of the machine base frame is supported indirectly via the support frame at the common support point.

Eine andere bevorzugte Lösung ist realisierbar, wenn der obere Abschnitt des Maschinengrundrahmens in seinem oberen Endbereich und unabhängig davon der Tragrahmen für die Kokille mittels Ankerstangen an der am Fundament hochgezogenen gemeinsamen Stützstelle abgestützt sind. Obwohl die Anlenkungen der Ankerstangen am oberen Abschnitt des Maschinengrundrahmens bzw. des Tragrahmens bei einer Verlängerung oder Verkürzung derselben eine Verschwenkbewegung ausführen, sind die Abweichungen zu einer geradlinigen Bewegung parallel zur Stranglaufrichtung im vorhandenen Bewegungsbereich in der Praxis unbedeutend.Another preferred solution can be realized if the upper section of the machine base frame in its upper end region and independently of it the support frame for the mold are supported by anchor rods at the common support point which is raised on the foundation. Although the articulations of the anchor rods on the upper section of the machine base frame or of the support frame result in a pivoting movement when the same is extended or shortened execute, the deviations from a linear movement parallel to the strand running direction in the existing movement range are insignificant in practice.

Der obere Abschnitt des Maschinengrundrahmens und der Tragrahmen können einzeln direkt auf einem Betonfundament abgestützt werden. Gemäss einer weiteren vorteilhaften Lösung schlägt die Erfindung vor, den oberen Abschnitt des Maschinengrundrahmens und den Tragrahmen für die Kokille auf ihren Unterseiten auf quer zur Stranglaufrichtung und parallel zu den gebogenen Stützflächen der Strangbahn angeordneten Achsen schwenkbar auf dem Fundament abzustützen.The upper section of the machine base frame and the support frame can be individually supported directly on a concrete foundation. According to a further advantageous solution, the invention proposes to pivotally support the upper section of the machine base frame and the support frame for the mold on the undersides of the foundation on axes arranged transversely to the strand running direction and parallel to the curved support surfaces of the strand web.

Als eine weitere Ausbildungsform empfiehlt die Erfindung, dass die am oberen Abschnitt des Maschinengrundrahmens und am Tragrahmen als Fundamentteile vorgesehenen Schwenkachsen fluchtend zueinander angeordnet sind. Es ist aber auch möglich, solche fluchtend angeordnete Achsen zu verbinden und als durchgehende Achse für beide Rahmenteile vorzusehen. Die Anordnung einer gemeinsamen Schwenkachse stellt eine wirtschaftliche und präzise Lösung einer Fundamentgestaltung dar. Anstelle einer direkten Anordnung der Schwenkachse am Fundament können sie mit Vorteil indirekt über den Maschinengrundrahmen auf dem Fundament abgestützt werden.As a further embodiment, the invention recommends that the swivel axes provided as foundation parts on the upper section of the machine base frame and on the support frame are aligned with one another. However, it is also possible to connect such axially arranged axes and to provide them as a continuous axis for both frame parts. The arrangement of a common swivel axis represents an economical and precise solution for a foundation design. Instead of a direct arrangement of the swivel axis on the foundation, they can advantageously be supported indirectly on the foundation via the machine base frame.

BeiAnwendung des Konstruktionsbeispieles mit Ankerstangen empfiehlt die Erfindung, diese an ihren beiden Enden gelenkig zu befestigen und etwa auf gleicher Höhe anzuordnen. Daraus resultiert eine statisch klar definierteHalterung von hoher Genauigkeit.When using the construction example with anchor rods, the invention recommends that they be articulated at both ends and arranged at approximately the same height. This results in a statically clearly defined bracket of high accuracy.

In der Zeichnung sind Ausführungsbeispiele der Erfindung schematisch dargestellt.Exemplary embodiments of the invention are shown schematically in the drawing.

Es zeigen:

  • Fig. 1 eine Seitenansicht einer teilweise dargestellten Stranggiessanlage,
  • Fig. 2 einen Schnitt nach der Linie II-II der Fig. 1 und
  • Fig. 3 eine Seitenansicht eines weiteren Beispieles einer teilweise dargestellten Stranggiessanlage.
Show it:
  • 1 is a side view of a partially shown continuous casting plant,
  • Fig. 2 shows a section along the line II-II of Fig. 1 and
  • Fig. 3 is a side view of another example of a partially shown continuous caster.

In den Figuren 1 und 2 ist mit 3 eine oszillierende Durchlaufkokille einer Stranggiessanlage für Stahl dargestellt. Die Kokille sitzt auf einem Kokillentisch 4 der auf jeder Seite über zwei Lenker 5 und 6 mit einem auf der Aussenseite der bogenförmigen Stützführung angebrachten Tragrahmen 7 für die Kokille 3 und einer ersten Zone 10 der Stützführung verbunden ist. 1'-e Oszillationsbahn der Kokille 3 wird durch die Schwenkbewegung der Lenker 5 und 6 bestimmt. Der Lenker 6 ist über eine Verlängerung mit einem Antriebshebel 9 des Oszillationsantriebes verbunden.1 and 2, 3 shows an oscillating continuous mold of a continuous casting plant for steel. The mold sits on a mold table 4 which is connected on each side via two links 5 and 6 to a support frame 7 for the mold 3 and a first zone 10 of the support guide, which frame is attached to the outside of the curved support guide. 1'-e oscillation path of the mold 3 is determined by the pivoting movement of the links 5 and 6. The link 6 is connected via an extension to a drive lever 9 of the oscillation drive.

Der Kokille 3 unmittelbar nachfolgend ist die erste, feststehende Stützführungszone 10 über Träger 11 am Tragrahmen 7 aufgehängt und über am Kokillentisch 4 angebrachte Gleitführungen 13 gegenüber der Kokille 3 geführt. Die der ersten Stützführungszone 10 nachfolgenden Stützführungssegmente 14 sind an einem oberen Abschnitt 15 eines Maschinengrundrahmens 16 bzw. am Maschinengrundrahmen 16 selbst befestigt. Der Maschinengrundrahmen 16 ist über Achsen 18 auf einem Fundament 19 abgestützt. Der Tragrahmen 7 und der Maschinengrundrahmen 16 bestehen jeweils aus zwei miteinander verbundenen Seitenwangen.Immediately following the mold 3, the first, fixed support guide zone 10 is suspended from the support frame 7 by means of supports 11 and guided relative to the mold 3 via slide guides 13 attached to the mold table 4. The support guide segments 14 following the first support guide zone 10 are fastened to an upper section 15 of a machine base frame 16 or to the machine base frame 16 itself. The machine base frame 16 is supported on a foundation 19 via axes 18. The support frame 7 and the machine base frame 16 each consist of two interconnected side walls.

Der Tragrahmen 7 und der obere Abschnitt 15 des Maschinengrundrahmens 16 sind ebenfalls auf je einer quer zur Stranglaufrichtung 20 und parallel zur gebogenen Stützfläche einer Strangbahn 21 angeordneten Achse 22 schwenkbar abgestützt. Es ist für die Erfindung unwesentlich, ob der Tragrahmen 7 und der obere Abschnitt 15 des Maschinengrundrahmens 16 direkt oder indirekt über den Maschinengrundrahmen 16 auf dem Fundament 19 aufliegen. Die Achsen 22 sind in diesem Beispiel durchgehend für den Tragrahmen 7 und für den oberen Abschnitt 15 des Maschinengrundrahmens 16 vorgesehen. Es sind aber auch eigene Achsen für den Tragrahmen 7 und den oberen Abschnitt 15 des Maschinengrundrahmens 16 denkbar, die etwa fluchtend zueinander angeordnet sind. Anstelle der Achsen 22 können auch andere starre oder schwenkbare Abstützeinrichtungen verwendet werden.The support frame 7 and the upper section 15 of the machine base frame 16 are likewise pivotable on an axis 22 arranged transversely to the strand running direction 20 and parallel to the curved support surface of a strand track 21 supported bar. It is immaterial to the invention whether the support frame 7 and the upper section 15 of the machine base frame 16 rest directly or indirectly on the foundation 19 via the machine base frame 16. In this example, the axes 22 are provided continuously for the support frame 7 and for the upper section 15 of the machine base frame 16. However, separate axes for the support frame 7 and the upper section 15 of the machine base frame 16 are also conceivable, which are arranged approximately in alignment with one another. Instead of the axes 22, other rigid or pivotable support devices can also be used.

Ankerstangen 23 verbinden den Tragrahmen 7 und Ankerstangen 24 den oberen Abschnitt 15 des Maschinengrundrahmens 16 mit einer gemeinsamen Stützstelle 17, die vom Fundament hochgezogene Stützpunkte 25 bzw. 26 aufweist. Der Tragrahmen 7 und der obere Abschnitt 15 des Maschinengrundrahmens 16 sind somit gegenseitig unabhängig mit dem Fundament verbunden.Anchor rods 23 connect the support frame 7 and anchor rods 24 connect the upper section 15 of the machine base frame 16 to a common support point 17 which has support points 25 and 26 which are raised from the foundation. The support frame 7 and the upper section 15 of the machine base frame 16 are thus mutually independently connected to the foundation.

Die Lenker 5 und 6 sind auf der Aussenseite der bogenförmigen Stützführung angebracht. Es ist aber auch möglich, den Tragrahmen 7 und den oberen Abschnitt 15 des Maschinengrundrahmens 16 auf der Innenseite der bogenförmigen Stützführung anzubringen. Wahlweise kann dieses Führungskonzept für die Oszillationsbewegung der Kokille aber auch bei geraden Kokillen und nachfolgend nur teilweise gebogener Stützführung verwendet werden. Anstelle der in diesem Beispiel gezeigten Oszillationsführung mittels Lenker 5, 6 können auch andere bekannte Oszillationsführungen und Oszillationsantriebe angewendet werden.The links 5 and 6 are attached to the outside of the arched support guide. But it is also possible to mount the support frame 7 and the upper section 15 of the machine base frame 16 on the inside of the arcuate support guide. Alternatively, this guide concept can be used for the oscillation movement of the mold, but also for straight molds and subsequently only partially bent support guides. Instead of the oscillation guide shown in this example by means of links 5, 6, other known oscillation guides and oscillation drives can also be used.

Das Konzept der gegenseitig unabhängigen Dreipunkt-Befestigung sowohl des Tragrahmens 7 als auch des oberen Abschnittes 15 des Maschinengrundrahmens 16 kann besonders vorteilhaft verwirklicht werden, wenn die Ankerstangen 23, 24 an ihren beiden Enden gelenkig befestigt sind. Aus Gründen der Uebersicht sind in den Figuren die Ankerstangen 23 und 24 untereinander angeordnet. Es ist jedoch vorteilhaft, alle Ankerstangen 23, 24 an Stützpunkten gleicher Höhe zu befestigen.The concept of mutually independent three-point attachment of both the support frame 7 and the upper section 15 of the machine base frame 16 can be special can be advantageously realized if the anchor rods 23, 24 are articulated at both ends. For reasons of clarity, the anchor rods 23 and 24 are arranged one below the other in the figures. However, it is advantageous to attach all anchor rods 23, 24 to support points of the same height.

Die am hochgezogenen Fundament angebrachten Stützpunkte 25 und 26 können auch an einem entsprechend starken, vertikalen Stützträger der Maschinen- oder Hallenstruktur befestigt sein. Wesentlich ist, dass alle Ankerstangen an der gemeinsamen Stützstelle 17 angelenkt werden, so dass bei einer Verschiebung der Stützstelle 17 bzw. der Stützpunkte 25 und 26 keine Relativbewegung zwischen diesen entsteht.The support points 25 and 26 attached to the raised foundation can also be attached to a correspondingly strong, vertical support beam of the machine or hall structure. It is essential that all anchor rods are articulated to the common support point 17, so that there is no relative movement between the support point 17 or the support points 25 and 26.

Bei Reparaturen oder Formatänderungen können die Kokille 3, die erste Zone 10, der Kokillentisch 4 oder der Tragrahmen 7 wahlweise als Gesamtwechseleinheit oder als Einzelteile ausgewechselt werden. Auch können nur die Kokille 3 und die erste Zone 10 zusammen aus- und wieder eingebaut werden. Zum Ausbau der Gesamtwechseleinheit wird mit Vorteil ein Krangehänge 31 benutzt. Die Ankerstangen 23 und der Lenker 6 sind an ihren Enden zum raschen.Ein- und Auskuppeln der Verbindungsbolzen 32 bzw. 33 entsprechend ausgebildet. Der Oszillationshebel 9 wird beispielsweise durch eine Feder 35 in Arbeitsposition gehalten. Beim Entkuppeln des Bolzens 33 kann mittels einem nicht dargestellten Kraftgerät gegen die Kraft der Feder 35 gedrückt werden. Ein gemeinsamer Wechsel der genannten Teile mittels dem Krangehänge 31 kann beispielsweise in 3 bis 5 Stunden erfolgen.In the event of repairs or format changes, the mold 3, the first zone 10, the mold table 4 or the support frame 7 can be exchanged either as a complete exchange unit or as individual parts. Also, only the mold 3 and the first zone 10 can be removed and reinstalled together. A crane suspension 31 is advantageously used to remove the entire exchange unit. The anchor rods 23 and the link 6 are designed at their ends for rapid engagement and disengagement of the connecting bolts 32 and 33, respectively. The oscillation lever 9 is held in the working position, for example, by a spring 35. When the bolt 33 is uncoupled, a force device (not shown) can be used to press against the force of the spring 35. A common change of the parts mentioned by means of the crane suspension 31 can take place in 3 to 5 hours, for example.

In Fig. 3 ist ein weiteres Beispiel einer Befestigung des oberen Abschnittes 15 des Maschinengrundrahmens 16 im oberen Endbereich und der Tragrahmen 7 für die Kokille 3 an der gemeinsamen Stützstelle 17 dargestellt. Für eine bessere Uebersicht sind Kokille, erste Stützführungszone und Stützführungssegmentein der Fig. 3 weggelassen worden.3 shows a further example of a fastening of the upper section 15 of the machine base frame 16 in the upper end region and of the support frame 7 for the mold 3 the common base 17 shown. For a better overview, the mold, first support guide zone and support guide segment have been omitted from FIG. 3.

Die gemeinsame Stützstelle 17 besteht aus einer am hochgezogenen Fundament oder an einem Stahlgerüst angebrachten Konsole 30, an welcher ein Gleitstein 34 angelenkt ist. Dieser Gleitstein 34 wirkt mit dem Tragrahmen 7 zusammen, damit dieser sich frei zwischen seinen beiden Befestigungspunkten bei Temperaturänderungen ausdehnen und zusammenziehen kann. Durch den Gleitstein 34 sind an der gemeinsamen Stützstelle 17 die beiden Rahmen 7, 15 in Stranglaufrichtung bewegbar und quer zur Stranglaufrichtung spiellos abgestützt. Der obere Abschnitt 15 des Maschinengrundrahmens 16 wird dabei indirekt über den Tragrahmen 7 mittels einer weiteren Gleitsteinführung 36 an der gemeinsamen Stützstelle 17 abgestützt. Auch die Gleitsteinführung 36 lässt eine Ausdehnbewegung in Stranglaufrichtung zu.The common support point 17 consists of a bracket 30 attached to the raised foundation or to a steel frame, to which a sliding block 34 is articulated. This sliding block 34 interacts with the support frame 7 so that it can expand and contract freely between its two attachment points when the temperature changes. By means of the sliding block 34, the two frames 7, 15 are movable in the strand running direction at the common support point 17 and are supported without play transversely to the strand running direction. The upper section 15 of the machine base frame 16 is supported indirectly via the support frame 7 by means of a further sliding block guide 36 at the common support point 17. The sliding block guide 36 also allows an expansion movement in the direction of the strand.

Der Tragrahmen 7 ist in der Regel länger als der obere Abschnitt 15 des Maschinengrundrahmens 16 und überschneidet mit einem Teil seiner Länge den oberen Abschnitt 15. Dieser obere Abschnitt 15 ist üblicherweise in seiner gesamten Länge überschnitten.The support frame 7 is generally longer than the upper section 15 of the machine base frame 16 and overlaps the upper section 15 with part of its length. This upper section 15 is usually overlapped in its entire length.

Auf den Unterseiten sind die beiden Rahmen 7 und 15 jeder für sich auf einem für beide Rahmen 7, 15 gemeinsamen Fundament 19 abgestützt, wobei die Achsen 22 als Fundamentteil zu betrachten sind, obwohl sie im dargestellten Beispiel auf dem Maschinengrundrahmen 16 aufliegen. Die Rahmenteile 7 und 15 könnten auch direkt auf dem Betonfundament 19 abgestützt sein.On the undersides, the two frames 7 and 15 are each individually supported on a foundation 19 common to both frames 7, 15, the axes 22 being considered as part of the foundation, although in the example shown they rest on the machine base frame 16. The frame parts 7 and 15 could also be supported directly on the concrete foundation 19.

Die Aufhängung der Kokille 3 und der ersten Zone 10 der Stützführung am Tragrahmen 7 und die Anordnung der Oszillationsführung sowie der Antrieb für die Oszillationsbewegung können auch mit anderen im Stand der Technik bekannten Lösungen verwirklicht werden.The suspension of the mold 3 and the first zone 10 of the support guide on the support frame 7 and the arrangement of the Oszil Lationsführung and the drive for the oscillation movement can also be realized with other solutions known in the prior art.

Claims (6)

1. Stranggiessanlage für Stahl mit oszillierender Durchlaufkokille und mindestens teilweise gebogener Stützführung für den Strang, wobei die einer ersten Zone der Stützführung nachfolgende Stützführung an einem Maschinengrundrahmen befestigt ist, dadurch gekennzeichnet, dass ein oberer Abschnitt (15) des Maschinengrundrahmens (16) und ein Tragrahmen (7) für die Kokille (3) und die erste Zone (10) der Stützführung mindestens teilweise überschneidend angeordnet und auf ihren Unterseiten jeder für sich auf einem für beide gemeinsamen Fundament (19) abgestützt sind und dass der obere Abschnitt (15) des Maschinengrundrahmens (16) im oberen Endbereich und der Tragrahmen (7) für die Kokille (3) an einer gemeinsamen Stützstelle (17) in Stranglaufrichtung (20) bewegbar abgestützt sind.1. Continuous casting plant for steel with an oscillating continuous mold and at least partially curved support guide for the strand, the support guide following a first zone of the support guide being fastened to a machine base frame, characterized in that an upper section (15) of the machine base frame (16) and a support frame (7) for the mold (3) and the first zone (10) of the support guide are arranged at least partially overlapping and on their undersides each are supported individually on a foundation (19) that is common to both and that the upper section (15) of the machine base frame (16) in the upper end region and the support frame (7) for the mold (3) are movably supported at a common support point (17) in the strand running direction (20). 2. Stranggiessanlage nach Anspruch 1, dadurch gekennzeichnet, dass der obere Abschnitt (15) des Maschinengrundrahmens (16) in seinem oberen Endbereich mit dem Tragrahmen (7) für die Kokille (3) über in Stranglaufrichtung (20) bewegbare Gleitsteinführungen (36) verbunden ist und dass die gemeinsame Stützstelle (17) mit am hochgezogenen Fundament (19) angeordneten weiteren Gleitsteinführungen (34) versehen ist.2. Continuous casting installation according to claim 1, characterized in that the upper section (15) of the machine base frame (16) is connected in its upper end region to the support frame (7) for the mold (3) via sliding block guides (36) which can be moved in the strand running direction (20) and that the common support point (17) is provided with further sliding block guides (34) arranged on the raised foundation (19). 3. Stranggiessanlage nach Anspruch 1, dadurch gekennzeichnet, dass der obere Abschnitt (15) des Maschinengrundrahmens (16) in seinem oberen Endbereich und unabhängig davon der Tragrahmen (7) für die Kokille (3) mittels Ankerstangen (23, 24) an der am Fundament (19) hochgezogenen gemeinsamen Stützstelle (17) abgestützt sind.3. Continuous casting installation according to claim 1, characterized in that the upper section (15) of the machine base frame (16) in its upper end region and independently of it the support frame (7) for the mold (3) by means of anchor rods (23, 24) on the Foundation (19) raised common support point (17) are supported. 4. Stranggiessanlage nach einem der Ansprüche 1 - 3, dadurch gekennzeichnet, dass der obere Abschnitt (15) des Maschinengrundrahmens (16) und der Tragrahmen (7) für die Kokille (3) auf ihren Unterseiten mittels quer zur Stranglaufrichtung (20) und parallel zu den gebogenen Stützflächen der Strangbahn (21) angeordneten Achsen (22) schwenkbar auf dem Fundament (19) abgestützt sind.4. Continuous casting installation according to one of claims 1-3, characterized in that the upper section (15) of the machine base frame (16) and the support frame (7) for the mold (3) on their undersides by means of transverse to the strand running direction (20) and parallel to the curved support surfaces of the continuous track (21) arranged axes (22) are pivotally supported on the foundation (19). 5. Stranggiessanlage nach Anspruch 3, dadurch gekennzeichnet, dass die Ankerstangen (23, 24) an ihren beiden Enden gelenkig befestigt und etwa auf gleicher Höhe angeordnet sind.5. Continuous casting installation according to claim 3, characterized in that the anchor rods (23, 24) are articulated at their two ends and are arranged approximately at the same height. 6. Stranggiessanlage nach Anspruch 4, dadurch gekennzeichnet, dass die am oberen Abschnitt (15) des Maschinengrundrahmens (16) und am Tragrahmen (7) vorgesehenen Schwenkachsen (22) fluchtend zueinander angeordnet sind.6. Continuous casting installation according to claim 4, characterized in that the swivel axes (22) provided on the upper section (15) of the machine base frame (16) and on the support frame (7) are arranged in alignment with one another.
EP79104120A 1978-10-27 1979-10-24 Continuous-casting assembly with an oscillating mould Expired EP0010728B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79104120T ATE174T1 (en) 1978-10-27 1979-10-24 CONTINUOUS CASTER WITH OSCILLATING CONTINUOUS MOLD.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1111478A CH633204A5 (en) 1978-10-27 1978-10-27 STEEL CASTING SYSTEM FOR STEEL WITH OSCILLATING CONTINUOUS CHOCOLATE.
CH11114/78 1978-10-27

Publications (2)

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EP0010728A1 true EP0010728A1 (en) 1980-05-14
EP0010728B1 EP0010728B1 (en) 1981-09-02

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EP79104120A Expired EP0010728B1 (en) 1978-10-27 1979-10-24 Continuous-casting assembly with an oscillating mould

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US (1) US4298052A (en)
EP (1) EP0010728B1 (en)
JP (1) JPS5561360A (en)
AT (1) ATE174T1 (en)
BR (1) BR7906876A (en)
CH (1) CH633204A5 (en)
DE (1) DE2960752D1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0016966A1 (en) * 1979-03-17 1980-10-15 Sms Schloemann-Siemag Aktiengesellschaft Continuous casting plant with a curved strand guiding
EP0041196A2 (en) * 1980-05-30 1981-12-09 Concast Holding Ag Method and arrangement for oscillating a continuous casting mould
FR2517227A1 (en) * 1981-12-01 1983-06-03 Clesid Sa METAL CONTINUOUS CASTING MACHINE, IN PARTICULAR FOR A MULTI-LINE COUPLING INSTALLATION
EP1029616A1 (en) * 1999-02-19 2000-08-23 SMS Demag AG Device for oscillating a continuous-casting mould

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0031133B1 (en) * 1979-12-19 1983-02-16 Concast Holding Ag Device for oscillating a continuous casting mould
US5911268A (en) * 1997-10-16 1999-06-15 Custom Systems, Inc. Oscillating mold table assembly
CN108705053B (en) * 2018-05-31 2020-04-10 上海二十冶建设有限公司 Method for replacing vibrating frame of crystallizer of continuous casting machine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1287751B (en) * 1969-01-23
DE1957689A1 (en) * 1969-11-17 1971-05-27 Demag Ag Continuous casting plant for metals, especially steel
DE2200129A1 (en) * 1971-01-08 1972-07-20 Fives Lille Cail Continuous casting plant
US3822738A (en) * 1972-02-01 1974-07-09 Concast Ag Apparatus for guiding an oscillating continuous casting mold at a continuous casting installation with curved path of travel of the strand
DE2061436B2 (en) * 1970-12-14 1977-12-15 Schloemann-Siemag AG, 4000 Düsseldorf CONTINUOUS CASTING PLANT
DE2729457A1 (en) * 1976-07-08 1978-01-12 Voest Ag CONTINUOUS CASTING PLANT

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2135860C3 (en) * 1971-07-17 1980-08-21 Schloemann-Siemag Ag, 4000 Duesseldorf Continuous casting plant with curved strand guide

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1287751B (en) * 1969-01-23
DE1957689A1 (en) * 1969-11-17 1971-05-27 Demag Ag Continuous casting plant for metals, especially steel
DE2061436B2 (en) * 1970-12-14 1977-12-15 Schloemann-Siemag AG, 4000 Düsseldorf CONTINUOUS CASTING PLANT
DE2200129A1 (en) * 1971-01-08 1972-07-20 Fives Lille Cail Continuous casting plant
US3822738A (en) * 1972-02-01 1974-07-09 Concast Ag Apparatus for guiding an oscillating continuous casting mold at a continuous casting installation with curved path of travel of the strand
DE2729457A1 (en) * 1976-07-08 1978-01-12 Voest Ag CONTINUOUS CASTING PLANT

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0016966A1 (en) * 1979-03-17 1980-10-15 Sms Schloemann-Siemag Aktiengesellschaft Continuous casting plant with a curved strand guiding
EP0041196A2 (en) * 1980-05-30 1981-12-09 Concast Holding Ag Method and arrangement for oscillating a continuous casting mould
EP0041196A3 (en) * 1980-05-30 1982-01-13 Concast Holding Ag Method and arrangement for oscillating a continuous casting mould
FR2517227A1 (en) * 1981-12-01 1983-06-03 Clesid Sa METAL CONTINUOUS CASTING MACHINE, IN PARTICULAR FOR A MULTI-LINE COUPLING INSTALLATION
EP0082744A1 (en) * 1981-12-01 1983-06-29 Clecim Sa Continuous casting machine for metals, especially a multi-strand casting machine
EP1029616A1 (en) * 1999-02-19 2000-08-23 SMS Demag AG Device for oscillating a continuous-casting mould

Also Published As

Publication number Publication date
US4298052A (en) 1981-11-03
EP0010728B1 (en) 1981-09-02
JPS5561360A (en) 1980-05-09
ATE174T1 (en) 1981-09-15
BR7906876A (en) 1980-06-24
DE2960752D1 (en) 1981-11-26
CH633204A5 (en) 1982-11-30

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