EP0394776A2 - Arc-type plant for continuously casting steel strands, with an oscillatory continuous casting mould - Google Patents

Arc-type plant for continuously casting steel strands, with an oscillatory continuous casting mould Download PDF

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Publication number
EP0394776A2
EP0394776A2 EP90107094A EP90107094A EP0394776A2 EP 0394776 A2 EP0394776 A2 EP 0394776A2 EP 90107094 A EP90107094 A EP 90107094A EP 90107094 A EP90107094 A EP 90107094A EP 0394776 A2 EP0394776 A2 EP 0394776A2
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EP
European Patent Office
Prior art keywords
continuous
mold
guide
strand
rigid
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EP90107094A
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German (de)
French (fr)
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EP0394776A3 (en
EP0394776B1 (en
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Concast Standard AG
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Concast Standard AG
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Priority to AT90107094T priority Critical patent/ATE83411T1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • 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
    • B22D11/08—Accessories for starting the casting procedure
    • B22D11/085—Means for storing or introducing the starter bars in 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
    • B22D11/14—Plants for continuous casting
    • B22D11/142—Plants for continuous casting for curved casting

Definitions

  • the invention relates to a continuous sheet casting installation for steel strands according to the features of the preamble of claim 1.
  • Continuous sheet caster systems with continuous molds are fed by vertical or slightly inclined steel feeds.
  • the resulting strand is guided on an arcuate strand with an arc length of about 90 degrees and then straightened.
  • the straightening unit is usually followed by a horizontal strand discharge.
  • Continuous casting plants for steel billets have arc radii of 4 m and more. Arc radii of 8 - 12 m are used for blooms and slabs. Continuous casting machines are built as single or multi-strand casting plants with up to 8 strands.
  • Such continuous casting plants are provided with two or more accessible stages or intermediate floors for machine operation and maintenance and are built up together with a steel structure in the steelworks.
  • the steel structure is an integral part of the continuous casting machine, which is required, for example, for suspending the mold, supporting the strand guide, the drive leveling unit and the cold strand storage device.
  • a continuous steel casting installation with a rigid, arc-shaped starting strand is known.
  • This system consists of a continuous mold, a secondary cooling device, a drive unit and a cold strand guiding and moving device.
  • the cold strand guide device can also be used as a parking device for the cold strand.
  • the mold is supported on the steel structure for the casting platform, the drive leveling unit is placed on a foundation and the guiding, storage and movement device of the starting line is attached to other pillars of the casting platform structure.
  • the curved strand guide between the mold and driver is movably arranged on the foundation on a horizontally movable carriage. Due to their bulkiness, such systems cannot be transported in assembled condition.
  • the invention has for its object to provide a continuous casting machine for billet and blank strands, which can be easily transported in the workshop-mounted state and placed in the casting position on a foundation.
  • This continuous casting machine should also be able to be assembled by stringing together single-strand units to form multiple-strand systems with any number of strands.
  • the alignment work at the casting site between the mold, strand guide, drive leveling unit and cold strand guide as well as the parking facility is to be reduced or completely eliminated.
  • each individual machine unit should ensure high availability through simplified revision options.
  • the continuous sheet caster according to the invention which is suitable for billet and blank strands, can be transported in a workshop-mounted state due to the new construction concept.
  • the rigid start-up line with its guiding and moving device can be inserted between the mold and driving rollers and therefore does not require any additional space during transport.
  • a corresponding number of modules can be placed next to each other on a prepared foundation and screwed tight. Alignment work between the mold, strand guide, straightening machine and cold strand guide device is no longer necessary during assembly.
  • the module structure can be carried out with great economy, and revision and spare part costs are also reduced.
  • the module can consist of a support that can be fastened to the foundation, to which the continuous mold with its oscillation guide, the drive leveling unit, and the rigid starting line with its guide and movement device are articulated or fastened.
  • the support itself can be constructed according to a variety of design principles. A particularly advantageous construction is characterized in that the support is designed as a trestle with two legs on each side, which are connected to a foundation frame.
  • the guide for the mold oscillation and the guide device for the rigid starting line can be pivotable about a common axis.
  • the arc mold can be arranged at various points along an arc, with the pouring part of the mold cavity of the mold can be substantially vertical or inclined.
  • the pouring conditions are particularly advantageous with a vertical pouring part. This means that the rigid, curved starting line has an arc length of 110 - 130 degrees.
  • the rigid start-up line can be guided and parked along a roller cage and moved with a pair of driving rollers.
  • the swivel lever for the start-up line can be designed as an angle lever with an angle between 90 degrees and 150 degrees and a leg ratio of about 1: 2, the short lever part being articulated on the swivel axis and the long lever part being articulated on the start-up line.
  • the casting radius in the mold is chosen to be 3.5 m or less, the bending stress on the strand crust during the straightening becomes correspondingly large, which can lead to cracks, particularly on the edges.
  • the driving judge is proposed to design the driving judge as a multi-point judging unit.
  • An additional improvement and simplification of the system can be achieved if the driver judge has a straightening section for a continuous bend between the arc radius of the mold and a straight line. With such a straightening machine, strands with radii of curvature between 1.5 and 3.5 m, preferably 2.5 m, can be straightened with good strand quality.
  • the assembly time for the individual machine modules can be shortened further, especially if repairs are not to be carried out in the casting position, if the trestle is provided with coupling pieces for media such as mold cooling water, secondary cooling water, mold lubrication, protective gas etc., which can be brought together with coupling pieces of the media supply lines when the machine is placed in the casting position.
  • media such as mold cooling water, secondary cooling water, mold lubrication, protective gas etc.
  • the figure shows a side view, partly in section, of a continuous caster.
  • Liquid steel flows from an intermediate vessel 1 into an oscillatable continuous mold 2.
  • An eccentric 3 is shown schematically as an oscillation drive.
  • a secondary cooling device 4 a drive unit 5, a rigid starting line 6 and a starting line guide and movement device 7, 7 'are arranged.
  • the continuous caster is constructed as a self-supporting module for a continuous vein.
  • a support 9 which is connected to the foundation 8 via a base plate or a foundation frame 10, the mold 2 with its oscillation guide 11, the driving directional unit 5 and the rigid starting line 6 with its guide and movement device 7, 7 'are connected or articulated .
  • the secondary cooling consisting only of coolant supply lines and spray nozzles device 4 and an additional cold strand guide 14 are arranged on the foundation frame 10.
  • This unit referred to as a module, can be placed on or removed from a prepared foundation in the fully assembled state at the casting location, for example by means of a crane.
  • the support 9 can be developed by a second identical support lying in front of the cut and by further support legs 12 and crossbeams 13 to form a four-legged support frame which is fastened to the foundation frame 10.
  • the oscillation guide 11 in the form of a bolt is also the guide for the guide device 7 of the starting line 6.
  • a piston-cylinder unit 7 ' is provided for the movement of the starting line 6.
  • the pivot lever 7 is designed as an angle lever with a leg ratio of approximately 1: 2, the short lever part being articulated on the pivot axis 11 and the long lever part being articulated on the starting line 6.
  • the casting platform 15 is provided for operating personnel. It is easy to see how the size of the casting platform 15 can be influenced by the design of the angle lever.
  • the transition curve 20 can by intermediate rollers, not shown, between the rollers 16 and 17 as a multi-point direction curve or, as shown, without Intermediate rolls can be designed as a continuous straightening section.
  • the value of the elongation change in percent elongation per unit length of the straightening section should not exceed a certain value.
  • the columns 9 etc. of the trestle can be provided with coupling pieces 22, 22 'for media, such as mold water, secondary cooling water, mold lubrication, protective gas, etc., which can be brought together with coupling pieces 23 of the media feed lines when the machine is placed in the casting position.
  • media such as mold water, secondary cooling water, mold lubrication, protective gas, etc.
  • the directional driver is shown in dot-dash lines in the position for decoupling the starting strand 6 from the starting head of the cast strand before the cold strand has reached the parking position, as shown in the figure.
  • the straightening roller 24 is in the position shown in the solid state.
  • the rigid starting strand 6 can be inserted into the mold and clamped, which significantly reduces the transport volume.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Articles (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Ropes Or Cables (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Crushing And Grinding (AREA)

Abstract

The intention is to provide a new design for an arc-type continuous casting plant for billet and sheet-bar strands, the said design allowing the arc-type continuous casting plant to be transported easily in the workshop-assembled condition and set down on a foundation in the casting position. This is achieved by the fact that the continuous casting mould (2) with its oscillation guide (11), the withdrawal and straightening assembly (5), the rigid dummy bar (6) with its guiding and moving arrangement (7 and 7') for in each case one strand is constructed as a self-supporting module and can be set down at the pouring station as an assembled and aligned modular unit. <IMAGE>

Description

Die Erfindung betrifft eine Bogenstranggiessanlage für Stahlstränge gemäss den Merkmalen des Oberbegriffes von Anspruch 1.The invention relates to a continuous sheet casting installation for steel strands according to the features of the preamble of claim 1.

Bogenstranggiessanlagen mit Durchlaufkokillen werden durch vertikale oder leicht schräg zur Vertikalen angeordnete Stahlzuführungen gespiesen. Der entstehende Strang wird auf einer bogenförmigen Strangbahn mit einer Bogenlänge von etwa 90 Grad geführt und anschliessend gerade gerich­tet. Dem Richtaggregat ist in der Regel eine horizontale Strangausförderung nachgeordnet.Continuous sheet caster systems with continuous molds are fed by vertical or slightly inclined steel feeds. The resulting strand is guided on an arcuate strand with an arc length of about 90 degrees and then straightened. The straightening unit is usually followed by a horizontal strand discharge.

Stranggiessanlagen für Stahlknüppelstränge weisen Bogenra­dien von 4 m und mehr auf. Für Vorblockformate und Brammen werden Bogenradien von 8 - 12 m verwendet. Stranggiessma­schinen werden als Ein- oder Mehrstranggiessanlagen bis zu 8 Strängen gebaut.Continuous casting plants for steel billets have arc radii of 4 m and more. Arc radii of 8 - 12 m are used for blooms and slabs. Continuous casting machines are built as single or multi-strand casting plants with up to 8 strands.

Solche Stranggiessanlagen sind mit zwei und mehr begehba­ren Bühnen oder Zwischenböden für die Maschinenbedienung und Wartung versehen und werden zusammen mit einer Stahl­struktur im Stahlwerk aufgebaut. Die Stahlstruktur stellt dabei einen integrierten Bestandteil der Stranggiessma­schine dar, der beispielsweise zur Aufhängung der Kokille, Abstützung der Strangführung, des Treibrichtaggregates und der Kaltstrang-Lagereinrichtung benötigt wird.Such continuous casting plants are provided with two or more accessible stages or intermediate floors for machine operation and maintenance and are built up together with a steel structure in the steelworks. The steel structure is an integral part of the continuous casting machine, which is required, for example, for suspending the mold, supporting the strand guide, the drive leveling unit and the cold strand storage device.

Aus US-PS 3 344 844, die den Oberbegriff bildet, ist eine Stahlstranggiessanlage mit einem starren, kreisbogenförmi­gen Anfahrstrang bekannt. Diese Anlage besteht aus einer Durchlaufkokille, einer Sekundärkühleinrichtung, einem Treibrichtaggregat und einer Kaltstrangführungs- und Bewe­gungseinrichtung. Die Kaltstrangführungseinrichtung ist gleichzeitig als Parkeinrichtung für den Kaltstrang ver­wendbar. Die Kokille ist an der Stahlstruktur für die Giessbühne abgestützt, das Treibrichtaggregat auf einem Fundament abgestellt und die Führungs-, Lager- und Bewe­gungseinrichtung des Anfahrstranges ist an weiteren Säulen der Giessbühnenstruktur befestigt. Die gebogene Strangfüh­rung zwischen Kokille und Treiber ist auf einem horizontal verfahrbaren Wagen auf dem Fundament bewegbar angeordnet. Solche Anlagen können wegen ihrer Sperrigkeit nicht in montiertem Zustand transportiert werden. Sie werden in der Regel erstmals am Giessstandort aufgebaut und ausgerich­tet. Die für mehrere Stränge gemeinsame Stahlstruktur wird in ihrer Breite auf eine vorgesehene Strangzahl ausgelegt. Solche Anlagen benötigen lange und teure Montage- und Ausrichtarbeiten. Eine Veränderung der Strangzahl ist nur mit einer Aenderung der Giessbühnenstruktur möglich.From US Pat. No. 3,344,844, which forms the preamble, a continuous steel casting installation with a rigid, arc-shaped starting strand is known. This system consists of a continuous mold, a secondary cooling device, a drive unit and a cold strand guiding and moving device. The cold strand guide device can also be used as a parking device for the cold strand. The mold is supported on the steel structure for the casting platform, the drive leveling unit is placed on a foundation and the guiding, storage and movement device of the starting line is attached to other pillars of the casting platform structure. The curved strand guide between the mold and driver is movably arranged on the foundation on a horizontally movable carriage. Due to their bulkiness, such systems cannot be transported in assembled condition. They are usually set up and aligned at the casting site for the first time. The width of the steel structure common to several strands is designed for a number of strands. Such systems require long and expensive assembly and alignment work. The number of strands can only be changed by changing the structure of the casting platform.

Der Erfindung liegt die Aufgabe zugrunde, eine Strang­giessmaschine für Knüppel- und Platinenstränge zu schaf­fen, die in werkstattmontiertem Zustand leicht transpor­tiert und in Giessposition auf ein Fundament abgestellt werden kann. Diese Stranggiessmaschine soll im weiteren durch Aneinanderreihen einsträngiger Einheiten zu Mehr­stranganlagen mit beliebiger Strangzahl zusammenstellbar sein. Neben wirtschaftlichen Herstell- und Montagemethoden soll auch die Ausrichtarbeit am Giessstandort zwischen Kokille, Strangführung, Treibrichtaggregat und Kaltstrang­führung sowie Parkeinrichtung vermindert werden bzw. ganz wegfallen. Im weiteren soll jede einzelne Maschineneinheit durch vereinfachte Revisionsmöglichkeit eine hohe Verfüg­barkeit sicherstellen.The invention has for its object to provide a continuous casting machine for billet and blank strands, which can be easily transported in the workshop-mounted state and placed in the casting position on a foundation. This continuous casting machine should also be able to be assembled by stringing together single-strand units to form multiple-strand systems with any number of strands. In addition to economical manufacturing and assembly methods, the alignment work at the casting site between the mold, strand guide, drive leveling unit and cold strand guide as well as the parking facility is to be reduced or completely eliminated. In addition, each individual machine unit should ensure high availability through simplified revision options.

Die erfindungsgemässe Aufgabe wird durch die Summe der Merkmale gemäss Anspruch 1 gelöst.The object according to the invention is achieved by the sum of the features according to claim 1.

Die erfindungsgemässe Bogenstranggiessanlage, die für Knüppel- und Platinenstränge geeignet ist, kann aufgrund des neuen Aufbaukonzeptes in werkstattmontiertem Zustand transportiert werden. Der starre Anfahrstrang mit seiner Führungs- und Bewegungseinrichtung kann zwischen Kokille und Treibrollen eingefahren werden und benötigt somit beim Transport keinen zusätzlichen Platz. Für eine Mehrstrangan­lage kann eine entsprechende Anzahl Module nebeneinander auf ein vorbereitetes Fundament abgestellt und festge­schraubt werden. Ausrichtarbeiten zwischen Kokille, Strang­führung Richttreibmaschine und Kaltstrangführungseinrich­tung sind bei der Montage nicht mehr nötig. Der Modulauf­bau kann mit hoher Wirtschaftlichkeit durchgeführt werden, und Revisions- sowie Ersatzteilkosten werden ebenfalls vermindert.The continuous sheet caster according to the invention, which is suitable for billet and blank strands, can be transported in a workshop-mounted state due to the new construction concept. The rigid start-up line with its guiding and moving device can be inserted between the mold and driving rollers and therefore does not require any additional space during transport. For a multiple line system, a corresponding number of modules can be placed next to each other on a prepared foundation and screwed tight. Alignment work between the mold, strand guide, straightening machine and cold strand guide device is no longer necessary during assembly. The module structure can be carried out with great economy, and revision and spare part costs are also reduced.

Gemäss einer weiteren Ausführungsform kann das Modul aus einer am Fundament befestigbaren Stütze bestehen, an wel­cher die Durchlaufkokille mit ihrer Oszillationsführung, das Treibrichtaggregat, der starre Anfahrstrang mit seiner Führungs- und Bewegungseinrichtung angelenkt bzw. befe­stigt werden. Die Stütze selbst kann nach vielfältigen Ge­staltungsgrundsätzen aufgebaut werden. Eine besonders vorteilhafte Konstruktion zeichnet sich dadurch aus, dass die Stütze als Tragbock mit beidseitig je zwei Beinen, die mit einem Fundamentrahmen verbunden sind, ausgebildet ist.According to a further embodiment, the module can consist of a support that can be fastened to the foundation, to which the continuous mold with its oscillation guide, the drive leveling unit, and the rigid starting line with its guide and movement device are articulated or fastened. The support itself can be constructed according to a variety of design principles. A particularly advantageous construction is characterized in that the support is designed as a trestle with two legs on each side, which are connected to a foundation frame.

Nach einem weiteren vorteilhaften Ausführungsbeispiel können die Führung für die Kokillenoszillation und die Führungseinrichtung für den starren Anfahrstrang um eine gemeinsame Achse verschwenkbar sein.According to a further advantageous exemplary embodiment, the guide for the mold oscillation and the guide device for the rigid starting line can be pivotable about a common axis.

Die Bogenkokille kann an verschiedenen Stellen entlang eines Kreisbogens angeordnet sein, wobei der Eingiess­ teil des Formhohlraumes der Kokille im wesentlichen verti­kal oder schräg liegen kann. Die Eingiessverhältnisse sind bei senkrechtem Eingiessteil besonders vorteilhaft. Dies bedingt, dass der starre, gebogene Anfahrstrang eine Bogen­länge von 110 - 130 Grad aufweist.The arc mold can be arranged at various points along an arc, with the pouring part of the mold cavity of the mold can be substantially vertical or inclined. The pouring conditions are particularly advantageous with a vertical pouring part. This means that the rigid, curved starting line has an arc length of 110 - 130 degrees.

Der starre Anfahrstrang kann entlang eines Rollenkäfigs geführt und geparkt sowie mit einem Treibrollenpaar bewegt werden. Im Sinne eines weiteren vorteilhaften Ausführungs­beispieles wird vorgeschlagen, die Führungs- und Bewegungs­einrichtung für den starren Anfahrstrang mit einem ange­triebenen Schwenkhebel zu gestalten, der in Giess- und Parkposition mit dem Anfahrstrang in angelenktem Zustand verbleibt.The rigid start-up line can be guided and parked along a roller cage and moved with a pair of driving rollers. In the sense of a further advantageous exemplary embodiment, it is proposed to design the guidance and movement device for the rigid start-up line with a driven swivel lever, which remains in the articulated and parked position with the start-up line in the articulated state.

Zur Vergrösserung der Giessbühne kann der Schwenkhebel für den Anfahrstrang als Winkelhebel mit einem Winkel zwischen 90 Grad und 150 Grad und einem Schenkelverhältnis von etwa 1 : 2 ausgebildet werden, wobei an der Schwenkachse der kurze Hebelteil und am Anfahrstrang der lange Hebelteil angelenkt sind.To enlarge the casting platform, the swivel lever for the start-up line can be designed as an angle lever with an angle between 90 degrees and 150 degrees and a leg ratio of about 1: 2, the short lever part being articulated on the swivel axis and the long lever part being articulated on the start-up line.

Wenn der Giessradius in der Kokille 3,5 m oder kleiner gewählt wird, so wird die Biegebeanspruchung der Strangkru­ste beim Richten entsprechend gross, was zu Rissen, insbe­sondere an den Kanten, führen kann. Um solche Strangfehler zu vermeiden, wird vorgeschlagen, den Treibrichter als Mehrpunktrichtaggregat auszubilden. Eine zusätzliche Ver­besserung und Vereinfachung der Anlage kann erreicht wer­den, wenn der Treibrichter eine Richtstrecke für eine kontinuierliche Aufbiegung zwischen dem Bogenradius der Kokille und einem geradlinigen Strang aufweist. Mit einer solchen Richtmaschine können Stränge mit Krümmungsradien zwischen 1,5 und 3,5 m, vorzugsweise 2,5 m, bei guter Strangqualität gerichtet werden.If the casting radius in the mold is chosen to be 3.5 m or less, the bending stress on the strand crust during the straightening becomes correspondingly large, which can lead to cracks, particularly on the edges. In order to avoid such string faults, it is proposed to design the driving judge as a multi-point judging unit. An additional improvement and simplification of the system can be achieved if the driver judge has a straightening section for a continuous bend between the arc radius of the mold and a straight line. With such a straightening machine, strands with radii of curvature between 1.5 and 3.5 m, preferably 2.5 m, can be straightened with good strand quality.

Die Montagezeit für die einzelnen Maschinenmodule kann weiter gekürzt werden, insbesondere wenn Reparaturen nicht in Giessposition ausgeführt werden sollen, wenn der Trag­bock mit Kupplungsstücken für Medien wie Kokillenkühlwas­ser, Sekundärkühlwasser, Kokillenschmierung, Schutzgas etc., versehen ist, die mit Kupplungsstücken der Medienzu­leitungen beim Aufsetzen der Maschine in Giessposition zusammenführbar sind.The assembly time for the individual machine modules can be shortened further, especially if repairs are not to be carried out in the casting position, if the trestle is provided with coupling pieces for media such as mold cooling water, secondary cooling water, mold lubrication, protective gas etc., which can be brought together with coupling pieces of the media supply lines when the machine is placed in the casting position.

Bei Anpassungen der Stranggiessanlage an unterschiedliche Produktionsbedürfnisse können einzelne Module rasch hinzu­gefügt oder weggenommen werden. Es ist auch möglich, durch Umstellung z.B. eine 6-Stranganlage in zwei 3-Stranganla­gen aufzuteilen und somit neuen Betriebsbedürfnissen anzu­passen.When adapting the continuous caster to different production needs, individual modules can be added or removed quickly. It is also possible to change e.g. to divide a 6-line system into two 3-line systems and thus adapt to new operating needs.

Im nachfolgenden wird anhand einer Figur ein Beispiel der Erfindung erläutert.An example of the invention is explained below with reference to a figure.

Die Figur zeigt eine Seitenansicht, teilweise im Schnitt, einer Bogenstranggiessanlage.The figure shows a side view, partly in section, of a continuous caster.

Aus einem Zwischengefäss 1 fliesst flüssiger Stahl in eine oszillierbare Durchlaufkokille 2. Ein Exzenter 3 ist als Oszillationsantrieb schematisch dargestellt. Anschliessend an die Kokille 2 sind eine Sekundärkühleinrichtung 4, ein Treibrichtaggregat 5, ein starrer Anfahrstrang 6 und eine Anfahrstrangführungs- und Bewegungseinrichtung 7, 7′ ange­ordnet.Liquid steel flows from an intermediate vessel 1 into an oscillatable continuous mold 2. An eccentric 3 is shown schematically as an oscillation drive. Subsequent to the mold 2, a secondary cooling device 4, a drive unit 5, a rigid starting line 6 and a starting line guide and movement device 7, 7 'are arranged.

Die Stranggiessanlage ist als ein selbsttragendes Modul für eine Strangader aufgebaut. An einer Stütze 9, die am Fundament 8 über eine Grundplatte oder einen Fundamentrah­men 10 verbunden ist, sind die Kokille 2 mit ihrer Oszilla­tionsführung 11, das Treibrichtaggregat 5 und der starre Anfahrstrang 6 mit seiner Führungs- und Bewegungseinrich­tung 7, 7′ verbunden bzw. angelenkt. Die nur aus Kühlmit­telzuleitungen und Sprühdüsen bestehende Sekundärkühl­ einrichtung 4 und eine zusätzliche Kaltstrangführung 14 sind am Fundamentrahmen 10 angeordnet. Diese als Modul bezeichnete Einheit kann in fertig montiertem Zustand am Giessplatz, beispielsweise mittels einem Kran, auf ein vorbereitetes Fundament abgestellt bzw. davon entfernt werden.The continuous caster is constructed as a self-supporting module for a continuous vein. On a support 9, which is connected to the foundation 8 via a base plate or a foundation frame 10, the mold 2 with its oscillation guide 11, the driving directional unit 5 and the rigid starting line 6 with its guide and movement device 7, 7 'are connected or articulated . The secondary cooling consisting only of coolant supply lines and spray nozzles device 4 and an additional cold strand guide 14 are arranged on the foundation frame 10. This unit, referred to as a module, can be placed on or removed from a prepared foundation in the fully assembled state at the casting location, for example by means of a crane.

Die Stütze 9 kann durch eine zweite, vor dem Schnitt lie­gende gleiche Stütze und durch weitere Stützbeine 12 sowie Querbalken 13 zu einem vierbeinigen Tragbock, der am Funda­mentrahmen 10 befestigt ist, weitergebildet werden.The support 9 can be developed by a second identical support lying in front of the cut and by further support legs 12 and crossbeams 13 to form a four-legged support frame which is fastened to the foundation frame 10.

Die Oszillationsführung 11 in der Form eines Bolzens ist gleichzeitig auch die Führung für die Führungseinrichtung 7 des Anfahrstranges 6. Der Anfahrstrang 6, der in diesem Beispiel eine Bogenlänge von etwa 130 Grad aufweist, hat als Führungseinrichtung 7 einen Schwenkhebel, der in Giess- und Parkposition mit dem Anfahrstrang 6 angelenkt bleibt. Für die Bewegung des Anfahrstranges 6 ist eine Kolbenzylin­dereinheit 7′ vorgesehen.The oscillation guide 11 in the form of a bolt is also the guide for the guide device 7 of the starting line 6. The starting line 6, which in this example has an arc length of about 130 degrees, has a pivoting lever as a guide device 7, which is in the casting and parking position remains articulated with the starting strand 6. For the movement of the starting line 6, a piston-cylinder unit 7 'is provided.

Der Schwenkhebel 7 ist als Winkelhebel mit einem Schenkel­verhältnis von etwa 1 : 2 ausgebildet, wobei der kurze Hebelteil an der Schwenkachse 11 und der lange Hebelteil am Anfahrstrang 6 angelenkt sind.The pivot lever 7 is designed as an angle lever with a leg ratio of approximately 1: 2, the short lever part being articulated on the pivot axis 11 and the long lever part being articulated on the starting line 6.

Oberhalb der Schwenkachse 11 ist die Giessbühne 15 für Bedienungspersonal vorgesehen. Es ist leicht erkennbar, wie durch die Gestaltung des Winkelhebels die Grösse der Giessbühne 15 beeinflusst werden kann.Above the pivot axis 11, the casting platform 15 is provided for operating personnel. It is easy to see how the size of the casting platform 15 can be influenced by the design of the angle lever.

Zwischen den angetriebenen Rollen 16 und der Rolle 17 wird der gegossene Strang entlang einer Uebergangskurve 20 vom Giessbogenradius 18 gerade gerichtet und auf einer geraden Strangbahn 19 geführt. Die Uebergangskurve 20 kann durch nicht dargestellte Zwischenrollen zwischen den Rollen 16 und 17 als Mehrpunktrichtkurve oder, wie dargestellt, ohne Zwischenrollen als kontinuierliche Richtstrecke gestaltet werden. Je kleiner der Giessradius gewählt wird, der zwi­schen 1,5 und 3,5 m liegen kann, um so wichtiger ist eine langsame, kontinuierliche Aufbiegestrecke entsprechender Länge. Der Wert der Dehnungsänderung in Prozent Dehnung pro Längeneinheit der Richtstrecke soll einen bestimmten Wert nicht überschreiten.Between the driven rollers 16 and the roller 17, the cast strand is straightened along a transition curve 20 from the casting curve radius 18 and guided on a straight strand path 19. The transition curve 20 can by intermediate rollers, not shown, between the rollers 16 and 17 as a multi-point direction curve or, as shown, without Intermediate rolls can be designed as a continuous straightening section. The smaller the casting radius chosen, which can be between 1.5 and 3.5 m, the more important is a slow, continuous bending line of the appropriate length. The value of the elongation change in percent elongation per unit length of the straightening section should not exceed a certain value.

Die Säulen 9 etc. des Tragbockes können mit Kupplungsstük­ken 22, 22′ für Medien, wie Kokillenwasser, Sekundärkühl­wasser, Kokillenschmierung, Schutzgas etc., versehen sein, die mit Kupplungsstücken 23 der Medienzuleitungen beim Aufsetzen der Maschine in Giessposition zusammenführbar sind.The columns 9 etc. of the trestle can be provided with coupling pieces 22, 22 'for media, such as mold water, secondary cooling water, mold lubrication, protective gas, etc., which can be brought together with coupling pieces 23 of the media feed lines when the machine is placed in the casting position.

In der Figur wird strichpunktiert der Richttreiber in der Position zum Entkuppeln des Anfahrstranges 6 vom Anfahr­kopf des gegossenen Stranges dargestellt, bevor der Kalt­strang die Parkposition, wie in der Figur dargestellt, erreicht hat. Nach der Entkupplung ist die Richtrolle 24 in der ausgezogen dargestellten Position.In the figure, the directional driver is shown in dot-dash lines in the position for decoupling the starting strand 6 from the starting head of the cast strand before the cold strand has reached the parking position, as shown in the figure. After the uncoupling, the straightening roller 24 is in the position shown in the solid state.

Für den Transport der Stranggiessanlage kann der starre Anfahrstrang 6 in die Kokille eingefahren und festgeklemmt werden, wodurch sich das Transportvolumen wesentlich ver­kleinert.For the transport of the continuous caster, the rigid starting strand 6 can be inserted into the mold and clamped, which significantly reduces the transport volume.

Claims (12)

1. Bogenstranggiessanlage für Stahlstränge mit einer oszillierbaren Durchlaufkokille (2), einer Sekundär­kühleinrichtung (4), einem Treibrichtaggregat (5), einem starren Anfahrstrang (6), einer Anfahrstrang­führungs- und Bewegungseinrichtung (7, bzw. 7′), dadurch gekennzeichnet, dass die Durchlaufkokille (2) mit ihrer Oszillationsführung (11), das Treibrichtag­gregat (5), der starre Anfahrstrang (6) mit seiner Führungs- und Bewegungseinrichtung (7, bzw. 7′) für jeweils eine Strangader als ein sich selbsttragendes Modul aufgebaut und als zusammengesetzte und ausge­richtete Moduleinheit am Giessplatz abstellbar ist.1. continuous sheet casting system for steel strands with an oscillating continuous mold (2), a secondary cooling device (4), a drive direction unit (5), a rigid starting line (6), a starting line guide and movement device (7 or 7 '), characterized in that the continuous mold (2) with its oscillation guide (11), the driving directional unit (5), the rigid start-up line (6) with its guiding and movement device (7 or 7 '), each for a stranded wire as a self-supporting module and as assembled and aligned module unit can be parked at the casting location. 2. Bogenstranggiessanlage nach Anspruch 1, dadurch ge­kennzeichnet, dass das Modul aus einer am Fundament (8) befestigbaren Stütze (9) besteht, an welcher die Durchlaufkokille (2) mit ihrer Oszillationsführung (11), das Treibrichtaggregat (5), der starre Anfahr­strang (6) mit seiner Führungs- und Bewegungseinrich­tung (7, bzw. 7′) angelenkt bzw. befestigt sind.2. Continuous sheet caster according to claim 1, characterized in that the module consists of a support (9) which can be fastened to the foundation (8) and on which the continuous mold (2) with its oscillation guide (11), the drive leveling unit (5), the rigid start-up line (6) are articulated or fastened with its guide and movement device (7 or 7 '). 3. Bogenstranggiessanlage nach Anspruch 1 oder 2, da­durch gekennzeichnet, dass die Stütze (9) als Trag­bock (9, 12, 13) mit beidseitig je zwei Beinen (9, 12), die mit einem Fundamentrahmen (10) verbunden sind, ausgebildet ist.3. Continuous caster according to claim 1 or 2, characterized in that the support (9) is designed as a support bracket (9, 12, 13) with two legs (9, 12) on both sides, which are connected to a foundation frame (10) . 4. Bogenstranggiessanlage nach einem der Ansprüche 1 - 3, dadurch gekennzeichnet, dass die Führung (11) für die Kokillenoszillation und die Führungseinrichtung (7) für den starren Anfahrstrang um eine gemeinsame Achse (11) verschwenkbar sind.4. continuous sheet caster according to one of claims 1-3, characterized in that the guide (11) for the mold oscillation and the guide device (7) for the rigid starting strand are pivotable about a common axis (11). 5. Bogenstranggiessanlage nach einem der Ansprüche 1 - 4, dadurch gekennzeichnet, dass der starre, gebogene Anfahrstrang (6) eine Bogenlänge von 110 - 130 Grad aufweist.5. Continuous casting machine according to one of claims 1-4, characterized in that the rigid, curved Starting strand (6) has an arc length of 110-130 degrees. 6. Bogenstranggiessanlage nach Anspruch 4 oder 5, da­durch gekennzeichnet, dass die Führungs- und Bewe­gungseinrichtung (7, bzw. 7′) für den starren Anfahr­strang (6) aus einem angetriebenen Schwenkhebel (7) besteht, der in Giess- und Parkposition mit dem An­fahrstrang (6) angelenkt ist.6. Continuous casting machine according to claim 4 or 5, characterized in that the guiding and movement device (7, or 7 ') for the rigid starting strand (6) consists of a driven pivot lever (7) which is in the casting and parking position with the Starting strand (6) is articulated. 7. Bogenstranggiessanlage nach einem der Ansprüche 1 - 6, dadurch gekennzeichnet, dass der Schwenkhebel (7) für den Anfahrstrang (6) als Winkelhebel mit einem Schenkelverhältnis von etwa 1 : 2 ausgebildet ist, wobei der kurze Hebelteil an der Schwenkachse (11) und der lange Hebelteil am Anfahrstrang (6) angelenkt sind.7. Continuous casting machine according to one of claims 1-6, characterized in that the pivot lever (7) for the starting strand (6) is designed as an angle lever with a leg ratio of about 1: 2, the short lever part on the pivot axis (11) and the long lever part is articulated on the starting line (6). 8. Bogenstranggiessanlage nach einem der Ansprüche 1 - 7, dadurch gekennzeichnet, dass der Treibrichter (5) als Mehrpunktrichtaggregat ausgebildet ist.8. Continuous sheet caster according to one of claims 1-7, characterized in that the driver-leveler (5) is designed as a multi-point leveling unit. 9. Bogenstranggiessanlage nach einem der Ansprüche 1 - 7, dadurch gekennzeichnet, dass der Treibrichter (5) eine Richtstrecke für eine kontinuierliche Aufbiegung zwischen dem Bogenradius (18) der Kokille und einem geradlinigen Strangführungsteil (19) aufweist.9. Continuous sheet caster according to one of claims 1-7, characterized in that the driving judge (5) has a straightening path for a continuous bend between the arc radius (18) of the mold and a straight strand guide part (19). 10. Bogenstranggiessanlage nach einem der Ansprüche 1 - 9, dadurch gekennzeichnet, dass der Bogenradius (18) zwischen 1,5 und 3,5 m, vorzugsweise 2,5 m, beträgt.10. Continuous sheet caster according to one of claims 1-9, characterized in that the arc radius (18) is between 1.5 and 3.5 m, preferably 2.5 m. 11. Bogenstranggiessanlage nach einem der Ansprüche 1 - 10, dadurch gekennzeichnet, dass der Tragbock (9, 12, 13) mit Kupplungsstücken (22) für Medien, wie Kokil­lenkühlwasser, Sekundärkühlwasser, Kokillenschmie­rung, Schutzgas etc. versehen ist, die mit Kupplungs­ stücken (23) der Medienzuleitungen beim Aufsetzen der Maschine in Giessposition zusammenführbar sind.11. Continuous casting machine according to one of claims 1-10, characterized in that the support frame (9, 12, 13) with coupling pieces (22) for media such as mold cooling water, secondary cooling water, mold lubrication, protective gas etc. is provided with a coupling pieces (23) of the media supply lines can be brought together when the machine is placed in the casting position. 12. Bogenstranggiessanlage nach einem der Ansprüche 1 - 11, dadurch gekennzeichnet, dass durch Aneinanderrei­hung von Moduleinheiten Stranggiessmaschinen von 2 - 8 Strängen zusammenstellbar sind.12. Continuous casting machine according to one of claims 1 - 11, characterized in that continuous casting machines of 2-8 strands can be put together by lining up module units.
EP90107094A 1989-04-24 1990-04-12 Arc-type plant for continuously casting steel strands, with an oscillatory continuous casting mould Expired - Lifetime EP0394776B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90107094T ATE83411T1 (en) 1989-04-24 1990-04-12 ARCH CONTINUOUS CASTING PLANT FOR STEEL STRIPS WITH AN OSCILLABLE CONTINUOUS MOLD.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1574/89A CH679650A5 (en) 1989-04-24 1989-04-24
CH1574/89 1989-04-24

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EP0394776A2 true EP0394776A2 (en) 1990-10-31
EP0394776A3 EP0394776A3 (en) 1991-03-20
EP0394776B1 EP0394776B1 (en) 1992-12-16

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EP90107094A Expired - Lifetime EP0394776B1 (en) 1989-04-24 1990-04-12 Arc-type plant for continuously casting steel strands, with an oscillatory continuous casting mould

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EP (1) EP0394776B1 (en)
JP (1) JPH02299755A (en)
KR (1) KR900015835A (en)
CN (1) CN1022548C (en)
AT (1) ATE83411T1 (en)
BR (1) BR9001873A (en)
CA (1) CA2015120A1 (en)
CH (1) CH679650A5 (en)
DE (1) DE59000594D1 (en)
ES (1) ES2038463T3 (en)
TR (1) TR24347A (en)

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DE10049445A1 (en) * 2000-10-06 2002-04-18 Sms Demag Ag Device for the continuous casting of metals, in particular steel, for the solidified bending process
EP2335847B1 (en) * 2009-12-18 2013-04-17 SMS Concast AG Device for starting/casting of a strand casting assembly
CN102896286B (en) * 2011-08-29 2015-04-01 河南省澳斯迪环保机械有限责任公司 Dummy bar machining center
JP6047657B2 (en) 2013-06-20 2016-12-21 スチールプランテック株式会社 Continuous casting machine and method of using the same

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CN1047234A (en) 1990-11-28
BR9001873A (en) 1991-06-18
DE59000594D1 (en) 1993-01-28
TR24347A (en) 1991-09-01
CH679650A5 (en) 1992-03-31
EP0394776A3 (en) 1991-03-20
JPH02299755A (en) 1990-12-12
KR900015835A (en) 1990-11-10
CN1022548C (en) 1993-10-27
EP0394776B1 (en) 1992-12-16
ES2038463T3 (en) 1993-07-16
CA2015120A1 (en) 1990-10-24
US5131453A (en) 1992-07-21
ATE83411T1 (en) 1993-01-15

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