EP1539403B1 - Device for the continuous casting of metals, in particular steel material, to form elongated products in a multiple casting line - Google Patents

Device for the continuous casting of metals, in particular steel material, to form elongated products in a multiple casting line Download PDF

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Publication number
EP1539403B1
EP1539403B1 EP03798146.1A EP03798146A EP1539403B1 EP 1539403 B1 EP1539403 B1 EP 1539403B1 EP 03798146 A EP03798146 A EP 03798146A EP 1539403 B1 EP1539403 B1 EP 1539403B1
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EP
European Patent Office
Prior art keywords
continuous casting
casting
oscillatory
frame
leaf spring
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EP03798146.1A
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German (de)
French (fr)
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EP1539403A1 (en
Inventor
Thomas Fest
Herbert Brotzki
Martin Becker
Adolf Gustav Zajber
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SMS Group GmbH
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SMS Group GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/053—Means for oscillating the moulds
    • 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
    • B22D11/0403—Multiple moulds
    • 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
    • B22D11/055—Cooling the moulds
    • 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

Definitions

  • the invention relates to a device for continuous casting of metals, in particular of steel materials, to long products in a multi-strand casting, with several continuous casting molds, which are each stored separately in an oscillating drivable oscillating frame in the casting, arranged by means of both sides of the cast strand leaf spring pairs, the extending transversely to the casting direction, is mounted for guidance and weight compensation on a foundation frame.
  • a device for continuous casting of steel which consists of a casting mold oscillating in the casting direction, which is mounted transversely to the casting direction extending, clamped at both ends clamped and connected to a fixed to a support frame, designed as a servo hydraulic cylinder Oszillatlonsantrieb.
  • the servo-hydraulic cylinders are arranged in a laid-by the continuous casting mold longitudinal side plane laterally adjacent to the continuous casting mold with the support frame firmly connected, the continuous casting mold is attached to the springs in one point and the free ends of the springs are in firm connection with the support frame.
  • it is a so-called resonant mold, in which the spring force is adjusted to the mass of the mold such that the device oscillates in the resonance range.
  • the present invention relates to so-called multi-strand casters, in which several casting strands are produced side by side at the same time.
  • multi-strand casters efforts are made to minimize the strand spacing from cast strand to cast strand, i. from mold center to mold center.
  • the costs are thereby reduced and, in the case of conversions of existing plants, changes can still be made subsequently.
  • a stirring coil which influences the liquid core of the cast strand, can subsequently also be installed.
  • the invention is based on the object, even in so-called.
  • Resonant molds which are referred to at the beginning and whose essential feature is leaf spring packages to achieve structurally least possible strand spacing between the casting strands.
  • the stated object is achieved in that in the initially described device on an elongated foundation frame In Strand running direction two successively arranged, formed in the form of compact flat boxes housing are fixed, in which run upper and lower leaf spring pairs transverse to the strand direction and that attack on the leaf spring pairs Oszillationsantriebe, wherein a front oscillating drive to the rear oscillating drive operates synchronized.
  • the advantage is in such a transverse arrangement by crossing the cast strand or the strand running direction relative to the previous longitudinal arrangement a significant space and space savings, so that the distance from cast strand to cast strand, can be kept as small as possible.
  • the sequential arrangement of the flat boxes with the oscillating drives in the casting direction in a crossing transverse course of the leaf springs, transverse to the strand running or strand, allows to create a sufficiently large space for the continuous casting mold to be installed between the two flat boxes. At the same time sufficient space for the installation of the so-called. Zero support roller segment is obtained. Almost the entire strand spacing "A" can be exploited.
  • the front oscillation drive is set to the rear oscillation drive for a curved course of the casting strand with different strokes.
  • the rear oscillating drive is to be set to a higher stroke compared to the front oscillating drive.
  • oscillating drives consist of hydraulic drive units.
  • the oscillation drives can be arranged in protected areas below the foundation frame.
  • the flat boxes consists of two in line running direction behind one another rectangular frame for each two leaf spring pairs with the height spaced leaf springs and that between the rectangular frame Kokillenauflage a frame is arranged swinging.
  • the two rectangular frames for the mold support frame simultaneously form a guide.
  • the special protection for the drives is achieved in that the oscillation drive units are each arranged in the center plane of the casting strand below the two rectangular frame and between longitudinal beams of the foundation frame. In addition to the protected position, the fastening points are thereby advantageous,
  • the suspension elements consist of a rotatably mounted on the longitudinal beams, two-armed levers with formed at one end of the lever attachment trough and connected to the other end of the lever Justiermittein.
  • the design of the device is further developed in that a water chuck plate for supplying the continuous casting mold with cooling medium is arranged on the rear flat box and that the cooling medium supply and the cooling medium discharge run backwards away from the cast strand.
  • a multi-strand caster ( Fig. 1 ) with a plurality of casting strands 3 running parallel in the casting direction 1 for the casting strands by a continuous casting mold (not shown) and support roll scaffolds in segmental shape (not shown) are for long products such as billets, bloom (pre-block), round or profile cross sections, the continuous casting molds einzein arranged side by side.
  • Each of the continuous casting molds is stored separately in an oscillatingly drivable oscillating frame 2 in the casting direction 1.
  • a swing frame 2 is by means of leaf springs 4 ( Fig. 2 ) is connected to the continuous casting mold or the mold table. The oscillatory movements take place in the casting direction 1 as a sinusoidal movement.
  • the oscillation frequency and the oscillation height are coordinated.
  • the leaf spring pairs 4a and 4b extend transversely to the casting direction 1, crossing the cast strand 3, and serve for guidance and for Gewiohtskompensation on a foundation frame fifth
  • each foundation frame 5 is executed in strand direction 1 as an elongated rectangle.
  • the foundation frame 5 is formed in each case from longitudinal bars 5a and 5b.
  • each flat box 6 which extends transversely to the cast strand 3 in its longitudinal extent and bridges the gap between the two longitudinal bars 5a and 5b.
  • Each flat box 6 consists of a closed housing 6a, wherein a rear flat boxes 6b and a front flat box 6c is formed with the required distance for installation of a continuous casting mold.
  • the leaf springs to be described in more detail 4 are on the base frame 8, of which two are in each case parallel and spaced, the leaf springs to be described in more detail 4 as upper and lower leaf spring pairs 4a and 4b transverse to the strand direction 1, joints forming attached.
  • a water tensioning plate 9 is provided for cooling the continuous casting mold with a cooling medium feed 10 formed from below.
  • each Flachkestens 6 Is with open housings 6a, ie with removed protective cover 7 in Fig. 2 represents.
  • Each flat box 6, ie always two pairs of upper leaf spring pairs 4a and lower leaf spring pairs 4b is associated with an oscillating drive 11 which is fastened via a connection bridge 12.
  • the resulting front oscillating drive 11 a and the rear oscillating drive 11 b are synchronized and thereby cause unequal strokes but the same frequency a curve course.
  • the oscillation drives 11 a and 11 b are designed for example as hydraulic oscillation drive units 14 and therefore via hydraulic lines 15 fed.
  • a flat box 6 of two in strand direction 1 ( Fig. 1 ) arranged one behind the other, parallel rectangular frame 16 for each leaf spring pair 4a, 4b formed with height-spaced leaf springs 4 and between the rectangular frame 16 each a mold support frame 17 is arranged swingably.
  • Each of the mold support frames 17 carries two mold support surfaces 18 disposed in the ends.
  • the oscillation drive units 14 are located in the middle plane 19 (FIG. Fig. 1 ) of the casting strands 3 below the two rectangular frame 16 and between the longitudinal beams 5a, 5b of the foundation frame fifth
  • Fig. 1 and 2 are in the foundation frame 5 between the longitudinal beams 5a, 5b suspension elements 20 for the suspension of a (not shown) Support roller segment stored, which encloses the casting strands 3 in the course behind the continuous casting mold.
  • the suspension elements 20 consist of a rotatably mounted on the longitudinal beams 5a, 5b, two-armed levers 21 with a lever at a end 21a ( Fig. 3 ) formed hook-on depression 22 and connected to the other end of the lever 21b adjusting means 23 to determine the exact position of the suspended support roller segment.
  • each of the compact flat boxes 6 contains two base frames 8 between each of which is the swing frame 2.
  • the four mold support surfaces 18 visible.
  • the adjusting means 23 for the two-armed lever 21 with the hulls 22 can be seen.
  • remote protection covers 7 the view of a base frame 8, which receives an upper leaf spring pair 4a and a lower leaf spring pair 4b, and released on the connecting bridge 12.
  • the view is directed perpendicular to the oscillation drive 11, the hydraulic lines 15 can be seen.
  • the rectangular frame 16 is surmounted by a certain amount of the mold support frame 17 with the mold support surfaces 18.
  • the cooling medium supply 10 and the cooling medium discharge 24 are arranged on the rear side of the device.

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

Description

Die Erfindung betrifft eine Vorrichtung zum Stranggießen von Metallen, insbesondere von Stahlwerkstoffen, zu Langprodukten in einer Mehrstrang-Gießanlage, mit mehreren Stranggießkokillen, die jeweils getrennt in einem in Gießrichtung oszillierend antreibbaren Schwingrahmen gelagert sind, der mittels beidseitig zum Gießstrang angeordneten Blattfeder-Paaren, die sich quer zur Gießrichtung erstrecken, zur Führung und Gewichtskompensation auf einem Fundamentrahmen gelagert ist.The invention relates to a device for continuous casting of metals, in particular of steel materials, to long products in a multi-strand casting, with several continuous casting molds, which are each stored separately in an oscillating drivable oscillating frame in the casting, arranged by means of both sides of the cast strand leaf spring pairs, the extending transversely to the casting direction, is mounted for guidance and weight compensation on a foundation frame.

Aus der EP 0 468 607 B2 Ist eine flüssigkeitsgekühlte Kokille zum Stranggießen von Metallen nach dem Oberbegriff von Anspruch 1 bekannt, mit der Knüppel-, Bloom- und Rundstränge mittels einer Rohrkokille gegossen werden. Dazu wird die Masse der Kokille für die einzelnen Strangformate in Betracht gezogen und festgestellt, dass für Brammenformate das Gewicht der Kokille bei ca. 30 t liege und das Gewicht einer Kokille für Rund- und Rechteckstränge bei 1,3 bis 2,5 t. Der Vorschlag beschäftigt sich dann mit der Reduzierung der Kokillen-Gewichte, um höhere Schwingungszahlen bei geringstmöglichem Kraftbedarf zu erreichen.From the EP 0 468 607 B2 Is a liquid-cooled mold for continuous casting of metals according to the preamble of claim 1 is known to be cast with the billet, Bloom and round strands by means of a tube mold. For this purpose, the weight of the mold for the individual strand formats is considered and found that for slab moldings, the weight of the mold is about 30 t and the weight of a mold for round and rectangular strands at 1.3 to 2.5 t. The proposal then deals with the reduction of mold weights to achieve higher vibration numbers with the lowest possible power requirement.

Aus der US 4,195,684 sind eine Vorrichtung und ein Verfahren bekannt, wobei eine Mehrzahl von Kokillen durch einen Oszillationsmechanismus in Oszillation versetzt wird, wobei der Oszillatlonsmechanlsmus unabhängig vom Strangzwiachenraum angeordnet Ist, der lediglich von den Abmessungen einer Kupferplatte und eines Wasserkühlmantels für jede Kokille abhängt. Die Gussprodukte, die die Kokillen verlassen, werden mittels einer Mehrzahl von Treibrollen mit koaxial ineinandergreifenden Wellen abgezogen. Hierdurch kann der Zwischenraum zwischen den einzelnen Strängen vermindert werden, wodurch der Raumbedarf zur Instalüerung einer solchen Vorrichtung herabgesetzt werden kann.From the US 4,195,684 For example, an apparatus and a method are known in which a plurality of molds are oscillated by an oscillating mechanism, the oscillating mechanism being arranged independently of the strand space, which depends only on the dimensions of a copper plate and a water cooling jacket for each mold. The castings leaving the molds are coaxial with a plurality of driving rollers deducted in intermeshing waves. In this way, the gap between the individual strands can be reduced, whereby the space required for Instaluerung such a device can be reduced.

Aus der US 5,771,957 ist eine Einrichtung zum Stranggießen von Stahl bekannt, die aus einer in Gießrichtung oszillierenden Stranggießkokille besteht, die an quer zur Gießrichtung sich erstreckenden, beidendig eingespannten Federn gelagert und mit einem an einem Tragrahmen fest verbundenen, als Servo-Hydraulikzylinder ausgebildeten Oszillatlonsantrieb verbunden Ist. Die Servo-Hydraulikzylinder sind in einer durch die Stranggießkokille gelegten Längsschnittebene seitlich neben der Stranggießkokille angeordnet mit dem Tragrahmen spielfrei fest verbunden, wobei die Stranggießkokille an den Federn in einem Punkt befestigt ist und die freien Enden der Federn mit dem Tragrahmen In fester Verbindung stehen. Bei der Einrichtung gemaß US 5,771,957 handelt es sich um eine sogenannte Resonanzkokille, bei der die Federstärke auf die Masse der Kokille derart abgestimmt ist, dass die Einrichtung im Resonanzbereich schwingt.From the US 5,771,957 a device for continuous casting of steel is known, which consists of a casting mold oscillating in the casting direction, which is mounted transversely to the casting direction extending, clamped at both ends clamped and connected to a fixed to a support frame, designed as a servo hydraulic cylinder Oszillatlonsantrieb. The servo-hydraulic cylinders are arranged in a laid-by the continuous casting mold longitudinal side plane laterally adjacent to the continuous casting mold with the support frame firmly connected, the continuous casting mold is attached to the springs in one point and the free ends of the springs are in firm connection with the support frame. In the device gemaß US 5,771,957 it is a so-called resonant mold, in which the spring force is adjusted to the mass of the mold such that the device oscillates in the resonance range.

Demgegenüber bezieht sich die vorliegende Erfindung auf sog, Mehrstrang-Gießanlagen, bei der mehrere Gießstränge nebeneinander gleichzeitig erzeugt werden. Bei solchen Mehrstrang-Gießanlagen ist man bestrebt, einen möglichst kleinen Strangabstand von Gießstrang, zu Gießstrang, d.h. von Kokillenmitte zu Kokillenmitte zu erzielen. Bei neu zu bauenden Stranggießanlagen werden dadurch die Kosten reduziert und bei Umbauten bestehender Anlagen können nachträglich noch Änderungen durchgeführt werden. So kann bspw. nachträglich noch eine Rührspule, die den flüssigen Kern des Gießstranges beeinflusst, eingebaut werden.In contrast, the present invention relates to so-called multi-strand casters, in which several casting strands are produced side by side at the same time. In such multi-strand casters, efforts are made to minimize the strand spacing from cast strand to cast strand, i. from mold center to mold center. In the case of new continuous casting plants to be constructed, the costs are thereby reduced and, in the case of conversions of existing plants, changes can still be made subsequently. For example, a stirring coil, which influences the liquid core of the cast strand, can subsequently also be installed.

Der Erfindung liegt die Aufgabe zugrunde, auch bei sog. Resonanzkokillen, die eingangs bezeichnet sind und deren wesentliches Merkmal Blattfeder-Pakete sind, konstruktiv geringstmögliche Strangabstände zwischen den Gießsträngen zu erzielen. Die gestellte Aufgabe wird erfindungsgemäß dadurch gelöst, dass bei der eingangs bezeichneten Vorrichtung auf einem länglichen Fundamentrahmen In Stranglaufrichtung zwei hintereinander angeordnete, in Form von kompakten Flachkästen ausgebildete Gehäuse befestigt sind, in denen obere und untere Blattfeder-Paare quer zur Stranglaufrichtung verlaufen und dass an den Blattfeder-Paaren Oszillationsantriebe angreifen, wobei ein vorderer Oszillationsantrieb zum hinteren Oszillationsantrieb synchronisiert arbeitet. Der Vorteil ist bei einer solchen Quer-Anordnung durch Kreuzen des Gießstrangs bzw. der Stranglaufrichtung gegenüber der bisherigen Längs-Anordnung eine erhebliche Platz- und Raumersparnis, so dass der Abstand von Gießstrang zu Gießstrang, so klein wie möglich gehalten werden kann. Die Hintereinander-Anordnung der Flachkästen mit den Oszillationsantrieben in Gießrichtung bei einem kreuzenden Querverlauf der Blattfedern, quer zur Stranglaufrichtung bzw. Strangader, ermöglicht dabei, einen ausreichend großen Raum für die einzubauende Stranggießkokille zwischen den beiden Flachkästen zu schaffen. Gleichzeitig wird auch genügend Freiraum für den Einbau des sog. Null-Stützrollen-Segmentes gewonnen. Nahezu der gesamte Strangabstand "A" kann ausgenutzt werden.The invention is based on the object, even in so-called. Resonant molds, which are referred to at the beginning and whose essential feature is leaf spring packages to achieve structurally least possible strand spacing between the casting strands. The stated object is achieved in that in the initially described device on an elongated foundation frame In Strand running direction two successively arranged, formed in the form of compact flat boxes housing are fixed, in which run upper and lower leaf spring pairs transverse to the strand direction and that attack on the leaf spring pairs Oszillationsantriebe, wherein a front oscillating drive to the rear oscillating drive operates synchronized. The advantage is in such a transverse arrangement by crossing the cast strand or the strand running direction relative to the previous longitudinal arrangement a significant space and space savings, so that the distance from cast strand to cast strand, can be kept as small as possible. The sequential arrangement of the flat boxes with the oscillating drives in the casting direction in a crossing transverse course of the leaf springs, transverse to the strand running or strand, allows to create a sufficiently large space for the continuous casting mold to be installed between the two flat boxes. At the same time sufficient space for the installation of the so-called. Zero support roller segment is obtained. Almost the entire strand spacing "A" can be exploited.

Nach weiteren Merkmalen wird vorgeschlagen, dass der vordere Oszillationsantrieb zu dem hinteren Oszillationsantrieb für einen Bogenverlauf des Gießstrangs mit unterschiedlichen Hüben eingestellt ist. Der hintere Oszilletionsantrieb ist dabei auf einen höheren Hub gegenüber dem vorderen Oszillationsantrieb einzustellen.According to further features, it is proposed that the front oscillation drive is set to the rear oscillation drive for a curved course of the casting strand with different strokes. The rear oscillating drive is to be set to a higher stroke compared to the front oscillating drive.

Ein anderer Vorteil besteht darin, dass die Oszillationsantriebe aus hydraulischen Antriebseinheiten bestehen. Die Oszillationsantriebe können In geschützten Räumen unterhalb des Fundamentrahmens angeordnet werden.Another advantage is that the oscillating drives consist of hydraulic drive units. The oscillation drives can be arranged in protected areas below the foundation frame.

Weitere Merkmale sind, dass der Flachkästen aus zwei in Stranglaufrichtung hintereinanderliegenden Rechteckrahmen für jeweils zwei Blattfeder-Paare mit der Höhe beabstandeten Blattfedern besteht und dass zwischen den Rechteckrahmen ein Kokillenauflage-Rahmen schwingbar angeordnet ist. Dadurch bilden die beiden Rechteckrahmen für den Kokillenauflage-Rahmen gleichzeitig eine Führung.Further features are that the flat boxes consists of two in line running direction behind one another rectangular frame for each two leaf spring pairs with the height spaced leaf springs and that between the rectangular frame Kokillenauflage a frame is arranged swinging. As a result, the two rectangular frames for the mold support frame simultaneously form a guide.

Der besondere Schutz für die Antriebe wird dadurch erzielt, dass die Oszillations-Antriebseinheiten jeweils in der Mitten-Ebene des Gießstrangs unterhalb den beiden Rechteckrahmen und zwischen Längsholmen des Fundamentrahmens angeordnet sind. Neben der geschützten Lage sind dadurch die Befestigungsstellen vorteilhaft,The special protection for the drives is achieved in that the oscillation drive units are each arranged in the center plane of the casting strand below the two rectangular frame and between longitudinal beams of the foundation frame. In addition to the protected position, the fastening points are thereby advantageous,

Andere Merkmale ergeben sich dadurch, dass im Fundamentrahmen zwischen den Längsholmen Einhänge-Elemente für die Aufhängung eines Stützrollen-Segmentes gelagert sind. Dadurch wird der Einbau vor der Montage der Stranggießkokille begünstigt.Other features result from the fact that in the foundation frame between the longitudinal beams suspension elements are mounted for the suspension of a support roller segment. This favors the installation prior to the installation of the continuous casting mold.

In einer Weiterbildung ist vorgesehen, dass die Einhänge-Elemente aus an einem auf den Längsholmen drehgelagerten, zweiarmigen Hebeln mit an einem Hebelende ausgebildeter Einhänge-Mulde und am anderen Hebelende angeschlossenen Justiermittein bestehen.In a further development, it is provided that the suspension elements consist of a rotatably mounted on the longitudinal beams, two-armed levers with formed at one end of the lever attachment trough and connected to the other end of the lever Justiermittein.

Die Gestaltung der Vorrichtung ist ferner dadurch weiterentwickelt, dass eine Wasserspannplatte zur Versorgung der Stranggießkokille mit Kühlmedium auf dem hinteren Flachkasten angeordnet ist und dass die Kühlmedium-Zuführung und die Kühlmedium-Abführung nach hinten vom Gießstrang weg verlaufen.The design of the device is further developed in that a water chuck plate for supplying the continuous casting mold with cooling medium is arranged on the rear flat box and that the cooling medium supply and the cooling medium discharge run backwards away from the cast strand.

In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt, die nachfolgend näher erläutert werden.In the drawings, embodiments of the invention are shown, which are explained in more detail below.

Es zelgen:

Fig. 1
eine perspektivische Darstellung der Vorrichtung in Gesamtansicht,
Fig. 2
die perspektivische Darstellung gemäß Fig. 1 ohne Schutzabdeckungen,
Fig. 3
eine Seitenansicht in der Ebene, ohne den ersten Gießstrang,
Fig. 4
eine Draufsicht auf die Vorrichtung,
Fig. 5
eine Vorderansicht gegen die Vorrichtung bei abgenommener Schutzabdeckung, und
Fig. 6
eine Ansicht von unten gegen die Vorrichtung.
It says:
Fig. 1
a perspective view of the device in an overall view,
Fig. 2
the perspective view according to Fig. 1 without protective covers,
Fig. 3
a side view in the plane, without the first cast strand,
Fig. 4
a top view of the device,
Fig. 5
a front view against the device with the protective cover removed, and
Fig. 6
a view from below against the device.

In einer Mehrstrang-Gießanlage (Fig. 1) mit mehreren In Gießrichtung 1 parallel verlaufenden Gießsträngen 3 für die Gießstränge durch jeweils eine Stranggießkokille (nicht gezeichnet) und Stützrollengerüste in Segmentform (nicht gezeichnet) gebildet sind, sind für Langprodukte, wie z.B. Knüppel, Bloom (Vor-block-), Rund- oder ProfilQuerschnitte, die Stranggießkokillen einzein nebeneinander angeordnet. Jede der Stranggießkokillen ist getrennt in einem in Gießrichtung 1 oszillierend antreibbaren Schwingrahmen 2 gelagert. Ein Schwingrahmen 2 ist mittels Blattfedern 4 (Fig. 2) mit der Stranggießkokille oder dem Kokillentisch verbunden. Die Schwingbewegungen erfolgen in Gießrichtung 1 als sinusförmige Bewegung. In den meisten Fällen wird dabei eine größere Geschwindigkeit während der Abwärtsbewegung der Stranggießkokille als die Geschwindigkeit des Gießstrangs 3 ist, eingehalten. Die Oszillationsfrequenz und die Schwingungshöhe sind aufeinander abgestimmt. Die Blattfeder-Paare 4a und 4b erstrecken sich quer zur Gießrichtung 1, den Gießstrang 3 kreuzend, und dienen zur Führung und zur Gewiohtskompensation auf einem Fundamentrahmen 5.In a multi-strand caster ( Fig. 1 ) with a plurality of casting strands 3 running parallel in the casting direction 1 for the casting strands by a continuous casting mold (not shown) and support roll scaffolds in segmental shape (not shown) are for long products such as billets, bloom (pre-block), round or profile cross sections, the continuous casting molds einzein arranged side by side. Each of the continuous casting molds is stored separately in an oscillatingly drivable oscillating frame 2 in the casting direction 1. A swing frame 2 is by means of leaf springs 4 ( Fig. 2 ) is connected to the continuous casting mold or the mold table. The oscillatory movements take place in the casting direction 1 as a sinusoidal movement. In most cases, a greater speed during the downward movement of the continuous casting mold than the speed of the casting strand 3 is maintained. The oscillation frequency and the oscillation height are coordinated. The leaf spring pairs 4a and 4b extend transversely to the casting direction 1, crossing the cast strand 3, and serve for guidance and for Gewiohtskompensation on a foundation frame fifth

Um mehrere der Gießstränge 3 nebeneinander so eng wie möglich unterbringen zu können, d.h. um klein zu haltende Abstände "A" zu erreichen (Fig. 1), ist jeder Fundamentrahmen 5 in Stranglaufrichtung 1 als längliches Rechteck ausgeführt. Der Fundamentrahmen 5 Ist Jeweils aus Längsholmen 5a und 5b gebildet.In order to be able to accommodate several of the casting strands 3 next to each other as closely as possible, ie in order to achieve distances "A" to be kept small ( Fig. 1 ), each foundation frame 5 is executed in strand direction 1 as an elongated rectangle. The foundation frame 5 is formed in each case from longitudinal bars 5a and 5b.

Am hinteren Ende und am vorderen Ende des Fundamentrahmens 5 befindet sich jeweils ein kompakter Flachkasten 6, der in seiner Längserstreckung quer zum Gießstrang 3 verläuft und den Zwischenraum der beiden Längsholme 5a und 5b überbrückt. Jeder Flachkasten 6 besteht aus einem geschlossenen Gehäuse 6a, wobei ein hinterer Flachkästen 6b und ein vorderer Flachkasten 6c mit dem erforderlichen Abstand zum Einbau einer Stranggießkokille gebildet ist.At the rear end and at the front end of the foundation frame 5 is in each case a compact flat box 6, which extends transversely to the cast strand 3 in its longitudinal extent and bridges the gap between the two longitudinal bars 5a and 5b. Each flat box 6 consists of a closed housing 6a, wherein a rear flat boxes 6b and a front flat box 6c is formed with the required distance for installation of a continuous casting mold.

Jeder Flachkasten 6 bildet das Gehäuse 6a zusammen mit beidseitigen Schutzabdeckungen 7. Im Innern des Gehäuses 6a sind am Grundrahmen 8, von denen jeweils zwei parallel und beabstandet sind, die noch näher zu beschreibenden Blattfedern 4. als obere und untere Blattfeder-Paare 4a und 4b quer zur Stranglaufrichtung 1, Gelenke bildend, befestigt. Zwischen den Grundrahmen 8 ist eine Wasserspannplatte 9 zur Kühlung der Stranggießkokille mit von unten gestalteter Kühlmedium-Zuführung 10 vorgesehen.In the interior of the housing 6a are on the base frame 8, of which two are in each case parallel and spaced, the leaf springs to be described in more detail 4 as upper and lower leaf spring pairs 4a and 4b transverse to the strand direction 1, joints forming attached. Between the base frame 8, a water tensioning plate 9 is provided for cooling the continuous casting mold with a cooling medium feed 10 formed from below.

Die Ausbildung jedes Flachkestens 6 Ist bei geöffneten Gehäusen 6a, d.h. bei entfernter Schutzabdeckung 7 in Fig. 2 darstellt. Jedem Flachkasten 6, d.h. immer zwei Paaren von oberen Blattfederpaaren 4a und unteren Blattfederpaaren 4b Ist ein Oszillationsantrieb 11 zugeordnet, der über eine Verbindungsbrücke 12 befestigt Ist. Der sich daraus ergebende vordere Oszillationsantrieb 11 a und der hintere Oszillationsantrieb 11 b sind synchronisiert und bewirken dadurch bei ungleichen Hüben aber gleicher Frequenz einen Bogenverlauf 13. Die Oszillations-Antriebe 11a und 11 b sind z.B. als hydraulische Oszillations-Antriebseinheiten 14 ausgeführt und daher über Hydraulikleitungen 15 gespeist.The training of each Flachkestens 6 Is with open housings 6a, ie with removed protective cover 7 in Fig. 2 represents. Each flat box 6, ie always two pairs of upper leaf spring pairs 4a and lower leaf spring pairs 4b is associated with an oscillating drive 11 which is fastened via a connection bridge 12. The resulting front oscillating drive 11 a and the rear oscillating drive 11 b are synchronized and thereby cause unequal strokes but the same frequency a curve course. The oscillation drives 11 a and 11 b are designed for example as hydraulic oscillation drive units 14 and therefore via hydraulic lines 15 fed.

Wie weiterhin aus Fig. 2 ersichtlich ist, wird ein Flachkasten 6 aus zwei in Stranglaufrichtung 1 (Fig. 1) hintereinander liegende, parallel verlaufende Rechteck-Rahmen 16 für jeweils ein Blattfeder-Paar 4a, 4b mit in der Höhe beabstandete Blattfedern 4 gebildet und zwischen den Rechteck-Rahmen 16 ist jeweils ein Kokillen-Auflagerahmen 17 schwingbar angeordnet. Jeder der Kokillen-Auflagerahmen 17 trägt zwei in den Enden angeordnete Kokillen-Stützflächen 18.How to continue Fig. 2 it can be seen, a flat box 6 of two in strand direction 1 ( Fig. 1 ) arranged one behind the other, parallel rectangular frame 16 for each leaf spring pair 4a, 4b formed with height-spaced leaf springs 4 and between the rectangular frame 16 each a mold support frame 17 is arranged swingably. Each of the mold support frames 17 carries two mold support surfaces 18 disposed in the ends.

Die Oszillations-Antriebseinheiten 14 befinden sich in der Mitten-Ebene 19 (Fig. 1) der Gießstränge 3 unterhalb den beiden Rechteck-Rahmen 16 und zwischen den Längsholmen 5a, 5b des Fundamentrahmens 5.The oscillation drive units 14 are located in the middle plane 19 (FIG. Fig. 1 ) of the casting strands 3 below the two rectangular frame 16 and between the longitudinal beams 5a, 5b of the foundation frame fifth

Gemäß den Fig. 1 und 2 sind Im Fundamentrahmen 5 zwischen den Längsholmen 5a, 5b Einhänge-Elemente 20 für die Aufhängung eines (weiter nicht gezeigten) Stützrollen-Segmentes gelagert, das die Gießstränge 3 Im Verlauf hinter der Stranggießkokille umschließt. Die Einhänge-Elemente 20 bestehen aus einem auf den Längsholmen 5a, 5b drehgelagerten, zweiarmigen Hebeln 21 mit einer an einem Hebelende 21a (Fig. 3) ausgebildeten Einhänge-Mulde 22 und an dem anderen Hebelende 21b angeschlossenen Justiermitteln 23, um die genaue Lage des eingehängten Stützrollen-Segmentes festzulegen.According to the Fig. 1 and 2 are in the foundation frame 5 between the longitudinal beams 5a, 5b suspension elements 20 for the suspension of a (not shown) Support roller segment stored, which encloses the casting strands 3 in the course behind the continuous casting mold. The suspension elements 20 consist of a rotatably mounted on the longitudinal beams 5a, 5b, two-armed levers 21 with a lever at a end 21a ( Fig. 3 ) formed hook-on depression 22 and connected to the other end of the lever 21b adjusting means 23 to determine the exact position of the suspended support roller segment.

Gemäß Fig. 3 In Verbindung mit Fig. 4, weist der hintere Flachlsasten 6b die Wasserspannplatte 9 zur Versorgung der Stranggießkokille mit Kühlmedium auf. Außerdem ist ersichtlich, dass von dieser hinteren Seite der Vorrichtung die Kühlmedium-Zuführung 10 und eine Kühlmedium-Abführung 24 nach hinten vom heißen Gießstrang 3 abgewandt verläuft.According to Fig. 3 Combined with Fig. 4 , The rear Flachlsasten 6b, the water chuck 9 for supplying the continuous casting mold with cooling medium. In addition, it can be seen that from this rear side of the device, the cooling medium supply 10 and a cooling medium discharge 24 runs away from the hot casting strand 3 to the rear.

In der Draufsicht der Fig. 4 sind die beidseitig angeordnete Kühlmedium-Zuführung 10 und die Kühlmedium-Abführung 24 sichtbar, ferner die Hydraulikleitungen 15 für den Oszillationsantrieb 11. Jeder der kompakten Flachkästen 6 enthält zwei Grundrahmen 8. Zwischen diesen liegt jeweils der Schwingrahmen 2. Außerdem sind die vier Kokillen-Stützflächen 18 sichtbar. Ebenso sind die Justiermittel 23 für die zweiarmigen Hebel 21 mit den Einhängemulden 22 zu sehen.In the plan view of Fig. 4 each of the compact flat boxes 6 contains two base frames 8 between each of which is the swing frame 2. In addition, the four mold support surfaces 18 visible. Likewise, the adjusting means 23 for the two-armed lever 21 with the hulls 22 can be seen.

In der Vorderansicht der Fig. 5 ist bei entfernten Schutzabdeckungen 7 der Blick auf einen Grundrahmen 8, der ein oberes Blattfeder-Paar 4a und ein unteres Blattfeder-Paar 4b aufnimmt, und auf die Verbindungsbrücke 12 freigegeben. Außerdem ist der Blick senkrecht auf den Oszillationsantrieb 11 gerichtet, dessen Hydraulikleitungen 15 zu sehen sind. Der Rechteckrahmen 16 wird um ein bestimmtes Maß von dem Kokillen-Auflagerahmen 17 mit den Kokillen-Stützflächen 18 überragt. Die Kühlmedium-Zuführung 10 und die Kühlmedium-Abführung 24 sind auf der hinteren Seite der Vorrichtung angeordnet.In the front view of the Fig. 5 is remote protection covers 7, the view of a base frame 8, which receives an upper leaf spring pair 4a and a lower leaf spring pair 4b, and released on the connecting bridge 12. In addition, the view is directed perpendicular to the oscillation drive 11, the hydraulic lines 15 can be seen. The rectangular frame 16 is surmounted by a certain amount of the mold support frame 17 with the mold support surfaces 18. The cooling medium supply 10 and the cooling medium discharge 24 are arranged on the rear side of the device.

In der Ansicht von unten, Fig. 6, sind die hydraulischen Oszillations-Antriebseinheiten 14 von unten her sichtbar, Außerdem fällt der Blick auf die Hydraulikleitungen 15, die sich auf beiden Seiten des Fundamentrahmens 5 mit den Längsholmen 5a und 5b befinden. Ebenso sind die Justiermittel 23 (mit den hier nicht sichtbaren Einhängemulden 22) für ein Stützrollen-Segment von unten sichtbar.In the view from below, Fig. 6 , the hydraulic oscillation drive units 14 are visible from below, in addition, the view of the hydraulic lines 15, the are located on both sides of the foundation frame 5 with the longitudinal beams 5a and 5b. Likewise, the adjusting means 23 (with the not visible suspension trays 22) for a support roller segment from below visible.

Bezugszelchenliste:Bezugszelchenliste:

  • 1 Gießrichtung , Stranglaufrichtung1 casting direction, strand direction
  • 2 Schwingrahmen2 swing frame
  • 3 Gießstrang3 cast strand
  • 4 Blattfedern4 leaf springs
  • 4a oberes Blattfeder-Paar4a upper leaf spring pair
  • 4b unteres Blattfeder-Paar4b lower leaf spring pair
  • 5 Fundamentrahmen5 foundation frame
  • 5a Längsholm5a longitudinal spar
  • 5b Längsholm5b longitudinal spar
Forsetzung Bezugszeichenliste:Continuation of the list of reference signs:

  • 6 kompakter Flachkasten6 compact flat box
  • 6a Gehäuse6a housing
  • 6b hinterer Flachkasten6b rear flat box
  • 6c vorderer Flachkasten6c front flat box
  • 7 Schutzabdeckung7 protective cover
  • 8 Grundrahmen8 basic frames
  • 9 Wasserspannplatte9 water tension plate
  • 10 Kühlmedium-Zuführung10 cooling medium supply
  • 11 Oszillationsantrieb11 oscillation drive
  • 11 a vorderer Oszillatlonsantrieb11 a front oscillator drive
  • 11b hinterer Oszillationsantrieb11b rear oscillation drive
  • 12 Verbindungsbrücke12 connecting bridge
  • 13 Bogenverlauf des Gießstrangs13 Bow path of the cast strand
  • 14 hydraulische Oszillations-Antriebseinheit14 hydraulic oscillation drive unit
  • 15 Hydraulikleitungen15 hydraulic lines
  • 16 Rechteckrahmen16 rectangular frames
  • 17 Kokillen-Auflagerahmen17 mold support frame
  • 18 Kokillen-Stützfläche18 mold support surface
  • 19 Mitten-Ebene des Gießstrangs19 middle level of the cast strand
  • 20 Einhänge-Element20 suspension element
  • 21 zweiarmiger Hebel21 two-armed lever
  • 21 a Hebelende21 a lever end
  • 21b Hebelende21b end of lever
  • 22 Einhänge-Mulde22 suspension trough
  • 23 Justiermittel23 adjustment means
  • 24 Kühlmedium-Abführung24 Cooling medium discharge

Claims (8)

  1. Device for continuous casting of metals, particularly of steel materials, to form elongate products in a multi-strand casting plant, with a plurality of continuous casting moulds each separately mounted in an oscillatory frame (2) which is drivable to oscillate in casting direction (1) and which is mounted on a foundation frame by means of upper and lower, approximately horizontal leaf spring pairs (4), which are arranged on either side of the cast strip (3), for guidance and weight compensation, characterised in that two housings (6a), which are arranged one behind the other and constructed in the form of compact flat boxes (6) and in which the upper and lower leaf spring pairs (4a; 4b) extend transversely to the strip running direction (1), are fastened on an elongate foundation frame (5) in strip running direction (1), and that oscillatory drives (11) engage the leaf spring pairs (4a; 4b), wherein a front oscillatory drive (11 a) operates in synchronism with the rear oscillatory drive (11b).
  2. Device according to claim 1, characterised in that the front oscillatory drive (11a) is set relative to the rear oscillatory drive (11 b) for a curved path (13) of the cast strip (3) with different strokes.
  3. Device according to one of claims 1 and 2, characterised in that the oscillatory drives (11a; 11b) consist of hydraulic drive units (14).
  4. Device according to any one of claims 1 to 3, characterised in that the flat boxes (6) consist of two rectangular frames (16), which lie one behind the other in strip running direction (1), in each instance for a respective two leaf spring pairs (4a; 4b) with leaf springs (4) spaced apart in height and that a mould support frame (17) is pivotably arranged between the rectangular frames (16).
  5. Device according to any one of claims 1 to 4, characterised in that the oscillatory drive units (14) are respectively arranged in the centre plane (19) of the cast strip (3) below the two rectangular frames (16) and between longitudinal beams (5a; 5b) of the foundation frame (5).
  6. Device according to any one of claims 1 to 5, characterised in that suspension elements (20) for suspension of a support roller segment are mounted in the foundation frame (5) between the longitudinal beams (5a; 5b).
  7. Device according to claim 6, characterised in that the suspension elements (20) consist of double-arm levers (21), which are rotatably mounted on the longitudinal beams (5a; 5b), with a suspension trough (22) formed at one lever end (21 a) and adjusting means (23) connected with the other lever end (21 b).
  8. Device according to any one of claims 1 to 7, characterised in that a water clamping plate (9) for supply of the continuous casting mould with cooling medium is arranged on the rear flat box (6b) and that the cooling medium feed (10) and cooling medium discharge (24) extend rearwardly away from the cast strip (3).
EP03798146.1A 2002-09-21 2003-09-02 Device for the continuous casting of metals, in particular steel material, to form elongated products in a multiple casting line Revoked EP1539403B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10244596 2002-09-21
DE10244596A DE10244596B4 (en) 2002-09-21 2002-09-21 Apparatus for continuous casting of metals, in particular of steel materials, to long products in a multi-strand casting plant
PCT/EP2003/009710 WO2004028723A1 (en) 2002-09-21 2003-09-02 Device for the continuous casting of metals, in particular steel material, to form elongated products in a multiple casting line

Publications (2)

Publication Number Publication Date
EP1539403A1 EP1539403A1 (en) 2005-06-15
EP1539403B1 true EP1539403B1 (en) 2017-01-04

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Application Number Title Priority Date Filing Date
EP03798146.1A Revoked EP1539403B1 (en) 2002-09-21 2003-09-02 Device for the continuous casting of metals, in particular steel material, to form elongated products in a multiple casting line

Country Status (10)

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US (1) US7036557B2 (en)
EP (1) EP1539403B1 (en)
JP (1) JP4272158B2 (en)
KR (1) KR101031610B1 (en)
CN (1) CN100584486C (en)
AU (1) AU2003266344A1 (en)
CA (1) CA2499270C (en)
DE (1) DE10244596B4 (en)
TW (1) TWI279267B (en)
WO (1) WO2004028723A1 (en)

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DE102004018602A1 (en) * 2004-04-16 2005-11-03 Sms Demag Ag Oscillating device for continuous casting molds for casting of liquid metal, in particular of liquid steel material
DE102005019295A1 (en) * 2004-07-06 2006-02-02 Sms Demag Ag Device for the support and oscillation of a continuous casting mold of liquid metals, in particular of liquid steel materials, and methods of assembly and disassembly and maintenance
DE102005017226A1 (en) * 2004-07-06 2006-02-02 Sms Demag Ag Device for the support and oscillation of a continuous casting mold for the casting of liquid metal, in particular of liquid steel material
DE102008015827A1 (en) * 2008-03-27 2009-10-01 Sms Siemag Aktiengesellschaft Device for the support and oscillation of a continuous casting mold
AT508395B1 (en) * 2009-06-16 2014-08-15 Tbr Casting Technologies Gmbh MEDIUM FOR OSCILLATING A CONTINUOUS GASKILKILLE
EP2905093B1 (en) * 2014-02-07 2018-08-29 SMS Concast AG Mould assembly for continuous casting of metallic products
CN114309502A (en) * 2021-12-24 2022-04-12 衡阳镭目科技有限责任公司 Unit type single-drive crystallizer vibration device

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CN100584486C (en) 2010-01-27
US20060048915A1 (en) 2006-03-09
CA2499270C (en) 2010-11-16
CN1681612A (en) 2005-10-12
WO2004028723A1 (en) 2004-04-08
KR20050057510A (en) 2005-06-16
US7036557B2 (en) 2006-05-02
JP2005538852A (en) 2005-12-22
DE10244596B4 (en) 2011-12-29
EP1539403A1 (en) 2005-06-15
DE10244596A1 (en) 2004-04-01
JP4272158B2 (en) 2009-06-03
CA2499270A1 (en) 2004-04-08
AU2003266344A1 (en) 2004-04-19
TWI279267B (en) 2007-04-21
TW200404627A (en) 2004-04-01
KR101031610B1 (en) 2011-04-28

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