EP1289687B1 - Method and installation for producing a metal strip - Google Patents

Method and installation for producing a metal strip Download PDF

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Publication number
EP1289687B1
EP1289687B1 EP01983261A EP01983261A EP1289687B1 EP 1289687 B1 EP1289687 B1 EP 1289687B1 EP 01983261 A EP01983261 A EP 01983261A EP 01983261 A EP01983261 A EP 01983261A EP 1289687 B1 EP1289687 B1 EP 1289687B1
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EP
European Patent Office
Prior art keywords
strip
metal strip
driving
roller stand
casting
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EP01983261A
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German (de)
French (fr)
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EP1289687A1 (en
Inventor
Gerald Hohenbichler
Heinrich Pühringer
Gerhard Finstermann
Ernest Fuhrmann
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Primetals Technologies Austria GmbH
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Voest Alpine Industrienlagenbau GmbH
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Application filed by Voest Alpine Industrienlagenbau GmbH filed Critical Voest Alpine Industrienlagenbau GmbH
Priority to AT01983261T priority Critical patent/ATE294039T1/en
Publication of EP1289687A1 publication Critical patent/EP1289687A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0622Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/46Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
    • B21B1/463Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B41/00Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters
    • B21B41/08Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters without overall change in the general direction of movement of the work

Definitions

  • the invention relates to a method and a plant for producing a metal strip, preferably a steel strip, in particular of stainless steel and Carbon steel, with a casting thickness of 1.0 mm to max. 20 mm, preferably 1.5 mm up to max. 12 mm and excellent surface quality using the Two-roll casting and other treatment stages with the characteristics of Preliminary terms of independent claims 1 and 14.
  • the object of the invention is therefore to avoid these disadvantages and a method and to propose a plant of the type described above, in which the in the Casting system formed metal strip largely stress-free and without repercussions from subordinate institutions the first cooling and microstructure phase passes. Furthermore, it is an object of the invention, the dead weight of the Metal band in this phase to keep the metal band formation as constant as possible and still the transport speed in downstream facilities vary too can. Furthermore, an optimization of the production process under the Viewpoint consistent highest band quality can be achieved.
  • the driving roller stand takes place in directly successive treatment steps.
  • the definition of the band position by the formation point of the metal strip in the casting gap the two-roll caster and the first clamp in the first capstan allows the determination of an optimal corridor, essentially one Quarter arc corresponds, in which the metal strip für technologicallydert largely stress-free is and even if the transport speed of the metal strip in the first Drum roller frame is regulated in dependence on the casting speed.
  • the Arrangement of a first driving roller stand for receiving and regulated forwarding the metal band before its temporary storage as a freely hanging band loop in a loop pit prevents repercussions of its own weight and Loop motion on the delicate first cooling and structure formation phase.
  • the position of the metal strip in the region of the deflection from the vertical to the horizontal direction preferably the Aufliegestelle of the metal strip on a deflection support device with a Tape detection device detected metrologically and the tape transport speed in first traction roller frame and / or the casting speeds in the casting gap in Depending on regulated.
  • a deflection support device which as arcuate Guiding scaffold is formed and pivotally mounted in the plant structure and is only over a part of the way from the first drive roller frame to Two-roller caster extends, the controllability remains in a narrow, however sufficient area.
  • the winding of the metal strip under train can be advantageous depending on the transport speed of the metal strip in the first or in second traction roll stand, possibly taking into account the Casting speed, to be regulated.
  • the casting thickness and the strip thickness are coordinated with one another, that the thickness reduction takes place in a rolling pass.
  • the metal strip between the two-roll caster and the first capstan a Inert Deutschenshunt with for the metal strip Oxidationsvermeidender or at least undergoes oxidation-inhibiting atmosphere by appropriate fluids (gas mixtures or liquid mixtures) introduced or with the hot metal strip in direct Contact is brought.
  • appropriate fluids gas mixtures or liquid mixtures
  • the metal strip is placed in front of the Winding up according to given bundle weights divided and if necessary the Band edges trimmed.
  • a plant for producing a metal strip, preferably a steel strip, which meets the stated task, is characterized by the characteristics of independent claim 14.
  • the first traction roller frame is immediately upstream of the tape storage and the second drive roller frame immediately downstream of the tape storage.
  • the two drive roller stands as input side and Output side pulleys positioned on the tape storage.
  • Preference is for deflecting the cast metal strip from the vertical Casting in a substantially horizontal transport direction between the Zweiwalzengitinnate and the downstream first drive roller stand a from a corridor formed in a quarter arc, at least in a sub-area is formed by a deflection support device.
  • a rolling mill for thickness reduction and structural transformation arranged on the cast metal strip is advantageous from a single rolling stand, preferably formed a quarto rolling mill.
  • the Rolling device heating preferably one engageable with the work rolls associated induction heater or gas burner.
  • the second drive roller frame of the rolling mill is a Temperaureinstell Road, in particular a band heater for Band temperature increase, preferably upstream of a band edge heating.
  • One Drive motor of the second drive roller frame is with the drive of the rolling mill through a regulating device coupled so that the metal strip in the Temperature adjustment and / or in the rolling mill is kept under train.
  • the metal band passes through one between the two-roll caster and the first capstan arranged oxidation-preventing or at least oxidation-inhibiting Inerting.
  • the tape storage between the first capstan and the second drive roller frame is also formed as an inerting chamber.
  • the Inertleitershuntn can also be used as a temperature equalization zones be, and have appropriate facilities for the cooling or heating of the inert gas.
  • the rolling mill is a belt cooling line for controlled cooling of the Subordinated metal band.
  • a cross-cut device and optionally a Bandbeklamvorraum the tape winding device are arranged upstream and it is at least before and after the Querteilvortechnisch Drive roller stands arranged, the rolled strip during the cut under train hold.
  • an intermediate vessel for the melt transfer and arranged above this a ladle for the melt supply.
  • the Ladle is supported in a cantilever arm of a ladle turret, which is around a vertical axis from a pouring position to a ladle change position and back is supported pivotally.
  • Fig. 1 a plant in a first embodiment in a schematic longitudinal section through the plant shows
  • Fig. 2 shows a plant in a second embodiment in a shows a schematic longitudinal section through the system
  • Fig. 3 shows a plant with a integrated rolling mill in a schematic longitudinal section through the plant shows.
  • Fig. 1 shows a plant according to the invention for producing a metal strip 1 of a few Millimeters thick starting from a two-roll caster 2, passing through the two Casting rollers 3, 4 is indicated schematically. Melt is via an intermediate vessel 5, which flows from a ladle 6, the two-roll caster 2 is supplied.
  • FIG. 3 shows a ladle turret 7 carrying the ladles 6, in order to show the same vertical axis it is rotatably supported.
  • the metal band 1 is in the two-roll caster 2 along the lateral surfaces of the casting rolls 3, 4th formed and discharged by the rotation down.
  • the metal band will be in a quarter arc in horizontal direction and there deflected by a first Stem roller frame 8 detected and immediately trained in a loop pit Tape storage 9 forwarded.
  • the metal strip detected by the second traction roller frame 10 and fed to a tape winding device 11.
  • the metal band 1 is wound into coils.
  • One of the coil winding device 11 upstream Bandbeklad- and cross-cutting device 12 with upstream and downstream Drive roller stands 13, 14 is shown only in Fig. 3.
  • a control device 15 connects a rotary drive of the casting rolls 3 with the Rotary drive of the first drive roller frame 8 and allows a largely constant Tape guide between two-caster casting machine 2 and first drive roller frame 8.
  • a second control device 16 regulates the reel speed and the Transport speed in the second drive roller frame 10 as a function of Transport speed in the first drive roller frame 8 and / or the Casting speed.
  • FIG. 2 shows a further embodiment with an improved process control system.
  • a Bandortungssystem 17 is arranged, which is the instantaneous position of the Metal strip 1 determined in this area. This can be done, for example, by optical, thermal, acoustic or mechanical measuring methods take place. It is special to choose a measuring device that has a higher thermal stress withstand.
  • the band positioning system is control technology with the control device 15th connected.
  • a deflection support device 18 leads the Metällband surface gentle to the first traction roller frame 8.
  • Fig. 3 illustrates a plant with the involvement of a rolling mill for the production a rolled metal strip with excellent rolling texture and excellent Surface quality, comparable to a conventional cold-rolled metal strip.
  • the second traction roller stand 10 is one formed by a single quarto skeleton Subordinate rolling mill 19.
  • the work rolls 20 may not shown Heater facilities be equipped.
  • the rolling mill 19 is a temperature adjusting device 21 directly upstream, directly to the second drive roller frame 10th followed.
  • the drive motor of the second drive roller frame 10 is connected to the drive of Rolling mill 19 coupled by a control device 24 so that the metal strip in the Temperature adjustment 21 is held under train. This is an optimal Temperature control ensured in the rolling mill 19.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Metal Rolling (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)

Description

Die Erfindung betrifft ein Verfahren und eine Anlage zur Herstellung eines Metallbandes, vorzugsweise eines Stahlbandes, insbesondere aus rostfreiem Stahl und Kohlenstoffstahl, mit einer Gießdicke von 1,0 mm bis max. 20 mm, vorzugsweise 1,5 mm bis max. 12 mm und ausgezeichneter Oberflächenqualität unter Anwendung des Zweiwalzengießverfahrens und weiterer Behandlungsstufen mit den Merkmalen der Oberbegriffe der unabhängigen Ansprüche 1 und 14.The invention relates to a method and a plant for producing a metal strip, preferably a steel strip, in particular of stainless steel and Carbon steel, with a casting thickness of 1.0 mm to max. 20 mm, preferably 1.5 mm up to max. 12 mm and excellent surface quality using the Two-roll casting and other treatment stages with the characteristics of Preliminary terms of independent claims 1 and 14.

Die Herstellung eines Metallbandes erfolgt in einer Zweiwalzengießanlage zwischen zwei gekühlten, zueinander gegensinnig rotierenden Gießwalzen, die in Gießrichtung einen allmählich enger werdenden Aufnahmeraum für die Schmelze bilden, der von Seitenplatten an den Stirnseiten der Gießwalzen begrenzt ist. Über eine Verteilereinrichtung wird Schmelze in diesen Gießraum eingebracht und an den gekühlten Mantelflächen der Gießwalzen Strangschalen gebildet, die an der engsten Stelle zwischen den Gießwalzen zu einem Band mit vorbestimmter Dicke verbunden werden. Das gebildete Metallband wird in weiteren Behandlungsstufen in einer Walzeinrichtung dickenreduziert, oder direkt einer Haspeleinrichtung zugeführt und zu Bunden gewickelt.The production of a metal strip takes place in a Zweiwalzengießanlage between two cooled, each other in opposite directions rotating casting rolls in the casting a gradually becoming narrower receiving space for the melt, the of Side plates on the front sides of the casting rolls is limited. Over a Distributor melt is introduced into this casting room and the cooled Shell surfaces of the casting rolls strand shells formed at the narrowest point be connected between the casting rolls to a band of predetermined thickness. The formed metal strip is in further processing stages in a rolling device reduced thickness, or fed directly to a coiler and wound into coils.

Verfahren und Vorrichtungen zum Gießen eines Metallbandes ohne Einbindung eines Walzgerüstes sind beispielsweise aus dem Aufsatz von Simon R.W. et al: "Entwicklungsstand des direkten Gießens von Band auf der industriellen Pilotanlage Myosotis", Stahl und Eisen, Verlag Stahleisen GmbH, Düsseldorf, DE, Bd. 117, Nr. 5, 20. Mai 1997, S. 75-79 und aus dem Aufsatz von Stein-Versen R.: "Die Versuchsanlage zum Dünnbandgießen der Krupp Stahl AG im Werk Unna der VDM Nickel-Technologie" Stahl und Eisen, Verlag Stahleisen GmbH, Düsseldorf, Bd. 110; Nr. 7, 13. Juli 1990, S. 117-118 bereits beschrieben.Method and apparatus for casting a metal strip without involving a Roll stand, for example, from the article by Simon R.W. et al: "Development status of direct casting of strip on the industrial pilot plant Myosotis ", Stahl and Eisen, Verlag Stahleisen GmbH, Dusseldorf, DE, Vol. 117, No. 5, 20. May 1997, pp. 75-79 and from the article by Stein-Versen R .: "The pilot plant for Thin strip casting of Krupp Stahl AG in the Unna plant of the VDM nickel technology "Steel and Eisen, Verlag Stahleisen GmbH, Dusseldorf, Vol. 110; No. 7, July 13, 1990, pp. 117-118 already described.

Weiters ist aus der EP-A 776 984 bereits eine Anlage zur Herstellung eines Metallbandes nach dem Zweiwalzengießverfahren bekannt. Dieser Zweiwalzen-Gießeinrichtung ist ein Warmwalzgerüst nachgeordnet ist, mit dem das gegossene Band zu einem Zwischenprodukt mit vorbestimmter Banddicke gewalzt wird. Zur Sicherstellung einer gleichmäßigen Zuführung des gegossenen Metallbandes zum Walzgerüst ist diesem ein Treibrollengerüst vorgeordnet. Ein wesentlicher Nachteil dieser Anlagenanordnung besteht darin, dass die Gießgeschwindigkeit in der Zweiwalzen-Gießeinrichtung und die Walzgeschwindigkeit im Walzgerüst ständig aufeinander abgestimmt sein müssen und bereits geringfügige Geschwindigkeitsabweichungen in einer der Anlagenkomponenten die Qualität des erzeugten Produktes beeinträchtigende Rückwirkungen auf andere Anlagenkomponenten hervorrufen. Gleiche Probleme mit der Synchronisation von Gießgeschwindigkeit und Walzgeschwindigkeit ergeben sich auch bei einer Gießwalzanlage, wie sie in der EP-A 760 397 beschrieben und in Fig. 3 dargestellt ist. Das in einer Zweiwalzengießanlage gegossene Band wird von einem Treibrollengerüst gefördert und vor dessen Eintritt in das Walzgerüst von einer Tänzerrolle unter Zug gehalten.Furthermore, from EP-A 776 984 already a plant for the production of a metal strip known after the two-roll casting process. This two-roll caster is a Hot rolling mill is downstream, with which the cast strip to a Intermediate is rolled with a predetermined strip thickness. To ensure a uniform feeding of the cast metal strip to the rolling mill is this one Drive roller stand upstream. A major disadvantage of this system arrangement is that the casting speed in the two-roll caster and the Rolling speed in the rolling mill must be constantly matched and already slight speed deviations in one of the plant components the quality of the product produced has adverse effects on others Cause plant components. Same problems with the synchronization of Casting speed and rolling speed also result in a Cast rolling mill, as described in EP-A 760 397 and shown in Fig. 3. The cast in a Zweiwalzengießanlage tape is from a drive roller frame promoted and before entering the rolling stand by a dancer roll under train held.

Aus der JP-A 63-48350 ist es bereits bekannt, Metallbänder aus Permalloy und Aluminium mit einer Dicke bis zu 1,0 mm nach dem Zweiwalzengießverfahren zu gießen, das Metallband in einem Zwischenspeicher, in dem das Metallband von einer Tänzerroller straff gespannt wird, oder nach anderen Ausführungsformen in einem Zwischenspeicher, der von einer Schlingengrube gebildet wird, die das Metallband frei hängend durchläuft, kurzfristig zu speichern und anschließend einer Bandwickeleinrichtung zuzuführen. Durch die kurzfristige Zwischenspeicherung wird die Zweiwalzengießvorrichtung funktionell von der Haspelanlage soweit getrennt, sodass von der Bandhaspel ausgehende ruckartige Bewegungen im Metallband nicht bis in den Bereich der Gießanlage und der Hochtemperaturzone des Metallbandes zurückwirken und dort zu Beschädigungen führen. Durch die kurzfristige Zwischenspeicherung ist auch eine Synchronisierung von Gießgeschwindigkeit und Haspelgeschwindigkeit nicht notwendig. Durch die lange und in ihrer Länge schwankende Metallbandschlinge, die sich direkt vom Gießspalt unter ihrem Eigengewicht frei nach unten hängend erstreckt und durch ihre Umlenkung einer unbestimmten Pendelbewegung unterliegt, ergeben sich für das Metallband stark schwankende Zugbeanspruchungen, die zu Rissbildungen und zur Schädigung der Bandoberfläche führen. Bei größeren Banddicken steigt durch das zunehmende Eigengewicht die Rissgefahr in unmittelbarer Nähe des Gießspaltes. Auch wenn das Metallband erst nach einer Abstützung durch einige Stützrollen eine Bandschlinge in einer Schlingengrube bildet, kommt es zu negativen Rückwirkungen der Schlingenbewegung auf die Spannungsverhältnisse im Metallband im Nahbereich des Gießspaltes. Die gleichen Schwierigkeiten stellen sich auch ein, wenn zur Erzeugung eines Metallbandes Anlagen verwendet werden, wie sie in der EP-B 540 610 (WO-A 92/01524), der EP-A 726 122 oder der WO-A 95/13156 beschrieben sind. In allen Fällen wird im unmittelbaren Anschluss an die Zweiwalzengießvorrichtung eine unter ihrem Eigengewicht frei durchhängende Bandschlinge gebildet.It is already known from JP-A 63-48350, metal strips of Permalloy and Cast aluminum up to 1.0 mm thick using the two-roll casting process, the metal band in a cache in which the metal band from a dancer roller taut or, according to other embodiments, in a buffer, which is formed by a loop pit, which passes through the metal band hanging freely, store shortly and then supply a tape winding device. By short-term caching will make the two-roll caster functional of the reel unit so far separated, so emanating from the tape reel jerky Movements in the metal band not into the area of the casting plant and the Reverse high temperature zone of the metal strip and there to damage to lead. The short-term caching is also a synchronization of Casting speed and reel speed not necessary. Through the long and in their length fluctuating metal band loop, directly from the casting gap under their Dead weight freely hanging down and extends by their deflection of a indefinite pendulum motion, resulting for the metal band strong fluctuating tensile stresses that lead to cracking and damage to the Lead ribbon surface. With larger strip thicknesses increases by the increasing Dead weight the risk of cracking in the immediate vicinity of the casting gap. Even if that Metal band only after a support by some support rollers a band loop in one Schlingengrube forms, it comes to negative repercussions of the loop movement on the stress conditions in the metal strip in the vicinity of the casting gap. The same difficulties also arise when producing a metal strip Installations are used, as described in EP-B 540 610 (WO-A 92/01524), EP-A 726 122 or WO-A 95/13156 are described. In all cases, in the immediate Connection to the Zweiwalzengießvorrichtung one under its own weight free sagging band loop formed.

Aus der JP-A 63-238 963 ist es weiters bekannt, in einer Gießanlage, deren Kokille von umlaufenden Bändern gebildet wird, ein Metallband in einem Dickenbereich von 15 bis 50 mm zu gießen. Das Metallband wird von einem Treibrollenpaar geschwindigkeitsgeregelt weiterbefördert und vor einer Dickenreduktion in einer mehrgerüstigen Warmwalzstraße durch eine Schlingengrube geführt. Der in seiner Länge variable Banddurchhang in der Schlingengrube verursacht unterschiedliche Bandzugverhältnisse beim Einlauf in die Warmwalzstraße , wodurch die Einhaltung einer gleichmäßigen Bandqualität nicht gewährleistet ist. Es kommt zusätzlich zu seitlichem Verlaufen des Bandes im Walzgerüst.From JP-A 63-238 963 it is further known in a casting plant, the mold of circumferential bands is formed, a metal strip in a thickness range of 15 to 50 mm to pour. The metal strip is speed-controlled by a pair of driving rollers transported and before a reduction in thickness in a multi-stand hot rolling mill passed through a loop pit. The variable in its length band sag in the Schlingengrube causes different Bandzugverhältnisse when entering the Hot rolling line, whereby compliance with a uniform strip quality is not is guaranteed. It comes in addition to lateral bleeding of the tape in the Rolling stand.

Aus der JP-A 56-119607 ist bereits eine Zweiwalzengießanlage bekannt, bei der das vertikal gegossene Metallband geführt in die Horizontale umgelenkt wird, wobei das Metallband mit zwei Treibrollenpaaren, die mit der Gießgeschwindigkeit synchron laufen, weitergefördert wird und anschließend durch einen Bandspeicher zur Anpassung der Bandlaufgeschwindigkeit an die Walzgeschwindigkeit einem Walzgerüst zur Walzverformung zugeführt wird. Ein wesentlicher Nachteil dieser Anordnung besteht darin, dass ausgangsseitig des Bandspeichers kein Treibrollengerüst angeordnet ist. Der notwendige Bandzug vor dem Walzgerüst wird hier nicht durch ein Treibrollengerüst, sondern ausschließlich durch die im Bandspeicher durchhängende Bandschlaufe erzeugt. Damit wird der Bandzug jedoch gewichtsabhängig und variiert in Abhängigkeit von der Länge der Bandschlaufe, wodurch ein kontinuierlicher Walzvorgang mit konstantem Bandzug nicht möglich ist.From JP-A 56-119607 a Zweiwalzengießanlage is already known in which the vertically cast metal strip guided in the horizontal is deflected, the Metal belt with two pairs of driving rollers synchronized with the casting speed, is further promoted and then by a tape storage to adapt the Tape speed to the rolling speed of a rolling stand for Walzverformung is supplied. A major disadvantage of this arrangement is in that the output side of the tape storage no Treibrollengerüst is arranged. Of the necessary strip tension in front of the roll stand is not achieved here by a drive roller frame, but produced exclusively by the sagging in the tape storage belt loop. However, the tape tension is weight dependent and varies depending on the Length of the belt loop, resulting in a continuous rolling process with constant Bandzug is not possible.

Aufgabe der Erfindung ist es daher, diese Nachteile zu vermeiden und ein Verfahren und eine Anlage der eingangs beschriebenen Art vorzuschlagen, bei der das in der Gießanlage gebildete Metallband weitgehend belastungsfrei und ohne Rückwirkungen aus nachgeordneten Einrichtungen die erste Abkühlungs- und Gefügebildungsphase durchläuft. Weiters ist es Aufgabe der Erfindung, die Eigengewichtsbelastung des Metallbandes in dieser Phase nach der Metallbandbildung möglichst konstant zu halten und trotzdem die Transportgeschwindigkeit in nachgeordneten Einrichtungen variieren zu können. Weiters soll eine Optimierung des Erzeugungsprozesses unter dem Gesichtspunkt gleichbleibend höchster Bandqualität erreicht werden.The object of the invention is therefore to avoid these disadvantages and a method and to propose a plant of the type described above, in which the in the Casting system formed metal strip largely stress-free and without repercussions from subordinate institutions the first cooling and microstructure phase passes. Furthermore, it is an object of the invention, the dead weight of the Metal band in this phase to keep the metal band formation as constant as possible and still the transport speed in downstream facilities vary too can. Furthermore, an optimization of the production process under the Viewpoint consistent highest band quality can be achieved.

Diese Aufgabe wird verfahrensmäßig durch die kennzeichnenden Merkmale des Anspruch 1 gelöst:This object is procedurally characterized by the characterizing features of Claim 1 solved:

Die Aufnahme und geregelte Weiterleitung des Metallbandes mittels eines ersten Treibrollengerüstes, das kurzzeitige Speichern des Metallbandes in einem Bandspeicher und die Aufnahme und Weiterleitung des Metallbandes mittels eines zweiten Treibrollengerüstes erfolgen in unmittelbar aufeinanderfolgenden Behandlungsschritten. Die Festlegung der Bandposition durch den Bildungspunkt des Metallbandes im Gießspalt der Zweiwalzengießvorrichtung und der ersten Klemmung im ersten Treibrollengerüst ermöglicht die Bestimmung eines optimalen Korridors, der im wesentlichen einem Viertelbogen entspricht, in dem das Metallband weitgehend belastungsfrei weiterbefördert wird und zwar auch dann, wenn die Transportgeschwindigkeit des Metallbandes im ersten Treibwalzengerüst in Abhängigkeit von der Gießgeschwindigkeit geregelt wird. Die Anordnung eines ersten Treibrollengerüstes zur Aufnahme und geregelten Weiterleitung des Metallbandes vor dessen kurzzeitigen Speichern als frei hängende Bandschlinge in einer Schlingengrube verhindert Rückwirkungen aus Eigengewicht und Schlingenbewegung auf die heikle erste Abkühlungs- und Gefügebildungsphase.The recording and regulated transmission of the metal strip by means of a first Treibrollengerüstes, the temporary storage of the metal strip in a tape storage and the recording and forwarding of the metal strip by means of a second The driving roller stand takes place in directly successive treatment steps. The definition of the band position by the formation point of the metal strip in the casting gap the two-roll caster and the first clamp in the first capstan allows the determination of an optimal corridor, essentially one Quarter arc corresponds, in which the metal strip weiterführördert largely stress-free is and even if the transport speed of the metal strip in the first Drum roller frame is regulated in dependence on the casting speed. The Arrangement of a first driving roller stand for receiving and regulated forwarding the metal band before its temporary storage as a freely hanging band loop in a loop pit prevents repercussions of its own weight and Loop motion on the delicate first cooling and structure formation phase.

Nach einer vorteilhaften Ausgestaltung der Erfindung wird die Position des Metallbandes im Bereich der Umlenkung von der vertikalen in die horizontale Richtung, vorzugsweise die Aufliegestelle des Metallbandes auf einer Umlenk-Stützvorrichtung mit einer Bandortungsvorrichtung messtechnisch erfasst und die Bandtransportgeschwindigkeit im ersten Treibrollengerüst und/oder die Gießgeschwindigkeiten im Gießspalt in Abhängigkeit davon geregelt. Durch eine Umlenk-Stützvorrichtung, die als bogenförmiges Führungsgerüst ausgebildet und schwenkbar im Anlagentragwerk gelagert ist und sich nur über eine Teilstrecke des Weges vom ersten Treibrollengerüst zur Zweiwalzengießeinrichtung erstreckt, bleibt die Regelbarkeit in einem engen, jedoch ausreichenden Bereich erhalten.According to an advantageous embodiment of the invention, the position of the metal strip in the region of the deflection from the vertical to the horizontal direction, preferably the Aufliegestelle of the metal strip on a deflection support device with a Tape detection device detected metrologically and the tape transport speed in first traction roller frame and / or the casting speeds in the casting gap in Depending on regulated. By a deflection support device, which as arcuate Guiding scaffold is formed and pivotally mounted in the plant structure and is only over a part of the way from the first drive roller frame to Two-roller caster extends, the controllability remains in a narrow, however sufficient area.

Sofern keine weiteren die Bandgeschwindigkeit beeinflussenden Behandlungsschritte am Metallband vorgesehen sind, kann das Aufwickeln des Metallbandes unter Zug vorteilhaft in Abhängigkeit von der Transportgeschwindigkeit des Metallbandes im ersten oder im zweiten Treibrollengerüst, gegebenenfalls unter Berücksichtigung der Gießgeschwindigkeit, geregelt werden.Unless there are further processing steps influencing the belt speed Metal strip are provided, the winding of the metal strip under train can be advantageous depending on the transport speed of the metal strip in the first or in second traction roll stand, possibly taking into account the Casting speed, to be regulated.

Eine wichtige und bekannte Maßnahme zur Erzeugung eines feinkörnigen Kristallgefüges und zur Vorbeeinflussung der physikalischen Eigenschaften des Metallbandes, sowie seiner Oberflächenqualität erfolgt durch eine Walzverformung, die inline bei Gießgeschwindigkeit vorgenommen wird. Aus der EP-B 540 610 (WO-A 92/01524) ist es bereits bekannt, ein Walzgerüst im Anschluss an eine Temperaturausgleichszone vorzusehen, wobei das Metallband während der Walzverformung zwischen dem Walzgerüst unmittelbar vor- und nachgeordneten Treibrollengerüsten unter Längszug gehalten wird. Weiters ist es bekannt, in einer dem Walzgerüst und dem unmittelbar vorgeordneten Treibwalzengerüst vorgeordneten Temperatursteuerzone eine Einstellung der Metallbandtemperatur hinsichtlich der nachfolgenden Walzverformung einzustellen. Ähnliche Lösungen für eine Inline-Walzverformung im Verbindung mit einer Zweiwalzengießanlage sind beispielsweise auch in der JP-A 56-119607, der WO-A 95/13156 und der EP-A 760 397 beschrieben.An important and known measure for producing a fine-grained crystal structure and to prejudice the physical properties of the metal strip, as well its surface quality is achieved by rolling deformation, which is inline at Casting speed is made. It is from EP-B 540 610 (WO-A 92/01524) already known, a roll stand following a temperature compensation zone be provided, wherein the metal strip during the rolling deformation between the Roll stand immediately upstream and downstream Treibrollengerüsten under longitudinal train is held. Furthermore, it is known in a rolling mill and the immediate upstream Treibwalzengerüst upstream temperature control zone a setting the metal strip temperature to be adjusted with respect to the subsequent rolling deformation. Similar solutions for inline rolling deformation in combination with a Zweiwalzengießanlage are, for example, in JP-A 56-119607, WO-A 95/13156 and EP-A 760 397.

In Weiterbildung eines optimierten Verfahrensablaufes ist es vorteilhaft, wenn eine Dickenreduktion und Gefügeeinstellung des Metallbandes durch Walzverformung in einer Walzanlage mit einem Mindestreduktionsgrad von 20 % unter Bandzug nach Durchlaufen des zweiten Treibrollengerüstes erfolgt, wobei eine Bandenddicke von 0,5 bis 10 mm, vorzugsweise von 0,7 bis 6 mm erreicht wird.In development of an optimized procedure, it is advantageous if a Thickness reduction and microstructural adjustment of the metal strip by rolling deformation in one Rolling mill with a minimum reduction of 20% under strip tension after passing through of the second drive roller stand, whereby a strip thickness of 0.5 to 10 mm, preferably from 0.7 to 6 mm is achieved.

Es ist zweckmäßig, wenn Gießdicke und Bandenddicke so aufeinander abgestimmt sind, dass die Dickenreduktion in einem Walzstich erfolgt.It is expedient if the casting thickness and the strip thickness are coordinated with one another, that the thickness reduction takes place in a rolling pass.

Bei Beginn des Walzprozesses ergeben sich Qualitätsverbesserungen für das Metallband, wenn die Dickenreduktion des Metallbandes in der Walzanlage mit auf mindestens 10°C über Hallentemperatur, vorzugsweise 20°C über Hallentemperatur vorgeheizten Arbeitswalzen erfolgt.At the beginning of the rolling process, there are quality improvements for the Metal strip, if the reduction in thickness of the metal strip in the rolling mill with on at least 10 ° C above room temperature, preferably 20 ° C above room temperature preheated work rolls done.

Für die Walzverformung der jeweiligen Stahlqualitäten sind günstige Ausgangsbedingungen im Metallband dann einstellbar, wenn nach dem zweiten Treibrollengerüst und noch vor der gegebenenfalls stattfindenden Dickenreduktion in der Walzanlage ein Temperaturausgleich im Metallband, zumindest jedoch ein Abgleichen der Temperatur der Bandkanten mit der vorherrschenden Temperatur in einer Temperatureinstellzone erfolgt. Generell ist jedoch sowohl eine Anhebung als auch eine Absenkung der Bandtemperatur auf optimale Walztemperatur vorgesehen. Zweckmäßig wird das Metallband in der Temperatureinstellzone durch das zweite Treibrollengerüst unter Bandzug gehalten.For the rolling deformation of the respective steel qualities are favorable Initial conditions in the metal band then adjustable, if after the second Treibrollengerüst and even before the possibly occurring reduction in thickness in the Rolling plant a temperature compensation in the metal strip, but at least a balance the temperature of the band edges with the prevailing temperature in one Temperature adjustment zone takes place. In general, however, both an increase and a Lowering the belt temperature to optimum rolling temperature provided. expedient the metal strip is in the temperature adjustment by the second drive roller stand kept under tension.

In Abhängigkeit von bestimmten Stahlqualitäten ist es zweckmäßig, wenn das Metallband zwischen der Zweiwalzengießvorrichtung und dem ersten Treibrollengerüst eine Inertisierungskammer mit für das Metallband oxidationsvermeidender oder zumindest oxidationshemmender Atmosphäre durchläuft, indem passende Fluide (Gasgemische oder auch Flüssigkeitsgemische) eingebracht bzw. mit dem heißen Metallband in direkten Kontakt gebracht wird. Dies wirkt der generellen Neigung der Stähle zur Reoxidation bei hohen Temperaturen entgegen. Der gleiche Effekt stellt sich ein, wenn das Metallband im Bereich des Bandspeichers unter nicht oxidierender Atmosphäre gehalten wird.Depending on certain steel qualities, it is expedient if the metal strip between the two-roll caster and the first capstan a Inertisierungskammer with for the metal strip Oxidationsvermeidender or at least undergoes oxidation-inhibiting atmosphere by appropriate fluids (gas mixtures or liquid mixtures) introduced or with the hot metal strip in direct Contact is brought. This contributes to the general tendency of the steels to reoxidize high temperatures. The same effect occurs when the metal band in the Area of the tape storage is kept under a non-oxidizing atmosphere.

Im Anschluss an die verschiedenen Verfahrensschritte wird das Metallband vor dem Aufwickeln entsprechend vorgegebenen Bundgewichten zerteilt und gegebenenfalls die Bandkanten besäumt.Following the various process steps, the metal strip is placed in front of the Winding up according to given bundle weights divided and if necessary the Band edges trimmed.

Eine Anlage zur Herstellung eines Metallbandes, vorzugsweise eines Stahlbandes, welche der gestellten Aufgabenstellung gerecht wird, ist durch die Merkmale des unabhängigen Anspruchs 14 gekennzeichnet.A plant for producing a metal strip, preferably a steel strip, which meets the stated task, is characterized by the characteristics of independent claim 14.

Hierbei ist das erste Treibrollengerüst dem Bandspeicher unmittelbar vorgeordnet und das zweite Treibrollengerüst dem Bandspeicher unmittelbar nachgeordnet. Nach einer vorteilhaften Ausgestaltung sind die beiden Treibrollengerüste als eingangsseitige und ausgangsseitige Umlenkrollen am Bandspeicher positioniert.Here, the first traction roller frame is immediately upstream of the tape storage and the second drive roller frame immediately downstream of the tape storage. After a advantageous embodiment, the two drive roller stands as input side and Output side pulleys positioned on the tape storage.

Bevorzugt ist zur Umlenkung des gegossenen Metallbandes aus der vertikalen Gießrichtung in eine im wesentlichen horizontale Transportrichtung zwischen der Zweiwalzengießeinrichtung und dem nachgeordneten ersten Treibrollengerüst ein von einem Viertelbogen gebildeter Korridor vorgesehen, der zumindest in einem Teilbereich von einer Umlenk-Stützvorrichtung gebildet ist. Preference is for deflecting the cast metal strip from the vertical Casting in a substantially horizontal transport direction between the Zweiwalzengießeinrichtung and the downstream first drive roller stand a from a corridor formed in a quarter arc, at least in a sub-area is formed by a deflection support device.

Günstige Betriebsbedingungen für die Anlage, insbesondere im für das Metallband empfindlichen Abschnitt zwischen Zweiwalzengießanlage und ersten Treibrollengerüst ergeben sich, wenn ein Drehantrieb der Gießwalzen und ein Drehantrieb des ersten Treibrollengerüstes mit einer Regeleinrichtung für die Regelung der Transportgeschwindigkeit des Metallbandes im ersten Treibrollengerüst verbunden ist. Eine vorteilhafte konstruktive Ausgestaltung ergibt sich, wenn eine Umlenk-Stützvorrichtung zur Umlenkung des gegossenen Metallbandes aus einer vertikalen Gießrichtung in eine im wesentlichen horizontale Transportrichtung zwischen der Zweiwalzengießvorrichtung und dem nachgeordneten ersten Treibrollengerüst angeordnet ist. Die Umlenk-Stützeinrichtung ist als bogenförmiges Führungsgerüst ausgebildet ist, welches sich vom ersten Treibrollengerüst über zumindest eine Teilstrecke des Weges zur Zweiwalzengieß-vorrichtung erstreckt und vorzugsweise schwenkbar im Anlagentragwerk angelenkt ist.Favorable operating conditions for the plant, in particular for the metal strip sensitive section between two-roll caster and first drive roller frame arise when a rotary drive of the casting rolls and a rotary drive of the first Treibrollengerüstes with a control device for the regulation of Transport speed of the metal strip is connected in the first drive pulley frame. An advantageous structural configuration results when a deflection support device for deflecting the cast metal strip from a vertical Casting in a substantially horizontal transport direction between the Zweiwalzengießvorrichtung and the downstream first drive roller frame is arranged. The deflection support device is designed as a curved guide frame is formed, which extends from the first drive roller frame via at least one Part of the route to the Zweiwalzengieß-device extends and preferably pivotally articulated in the plant structure.

Günstige Betriebsbedingungen ergeben sich nach einer weiteren Ausführungsform, wenn zwischen der Zweiwalzengießvorrichtung und dem erstem Treibrollengerüst eine Bandortungsvorrichtung angeordnet ist, die über eine Regeleinrichtung mit dem ersten Treibrollengerüst, gegebenenfalls auch mit der Zweiwalzengießvorrichtung regelungstechnisch gekoppelt ist. Damit können die äußeren Bedingungen für das Metallband in seiner ersten Abkühlungs- und Gefügebildungsphase weitgehend konstant gehalten werden. im Detail ist eine derartige Umlenk-Stützeinrichtung mit einem Bandortungssystem in der WO-A 99/48636 beschrieben. Der gesamte Offenbarungsgehalt der WO-A 99/48636 ist als integrierender Bestandteil dieser Anmeldung zu betrachten.Favorable operating conditions result according to a further embodiment, when between the two-roll caster and the first capstan a Bandortungsvorrichtung is arranged, which via a control device with the first Driving roller frame, possibly also with the Zweiwalzengießvorrichtung is coupled control technology. This allows the external conditions for the Metal strip largely constant in its first cooling and microstructure phase being held. In detail, such a deflection support means with a Band locating system described in WO-A 99/48636. The whole The disclosure of WO-A 99/48636 is an integral part of this Registration to look at.

Zur Dickenreduktion und Einstellung eines Walzgefüges im Metallband ist nach dem zweiten Treibrollengerüst eine Walzanlage zur Dickenreduktion und Gefügeumwandlung am gegossenen Metallband angeordnet. Die Walzanlage ist vorteilhaft von einem einzigen Walzgerüst, vorzugsweise einem Quarto-Walzgerüst gebildet.To reduce the thickness and setting a rolling structure in the metal strip is after the second traction roll stand a rolling mill for thickness reduction and structural transformation arranged on the cast metal strip. The rolling mill is advantageous from a single rolling stand, preferably formed a quarto rolling mill.

Zur Verbesserung der Walzbedingungen bei Walzbeginn sind den Arbeitswalzen der Walzanlage Aufheizeinrichtungen, vorzugsweise eine an die Arbeitswalzen anstellbare induktionsheizeinrichtung oder Gasbrenner zugeordnet. To improve the rolling conditions at the start of rolling the work rolls are the Rolling device heating, preferably one engageable with the work rolls associated induction heater or gas burner.

Nach dem zweiten Treibrollengerüst ist der Walzanlage eine Temperaiureinstelleinrichtung, insbesondere eine Bandheizung zur Bandtemperaturerhöhung, vorzugsweise eine Bandkantenheizung vorgeordnet. Ein Antriebsmotor des zweiten Treibrollengerüstes ist mit dem Antrieb der Walzanlage durch eine Regeleinrichtung so gekoppelt, dass das Metallband in der Temperatureinstelleinrichtung und/oder in der Walzanlage unter Zug gehalten wird.After the second drive roller frame of the rolling mill is a Temperaureinstelleinrichtung, in particular a band heater for Band temperature increase, preferably upstream of a band edge heating. One Drive motor of the second drive roller frame is with the drive of the rolling mill through a regulating device coupled so that the metal strip in the Temperature adjustment and / or in the rolling mill is kept under train.

Um Reoxidationseffekte am heißen Metallband zu vermeiden, durchläuft das Metallband eine zwischen der Zweiwalzengießvorrichtung und dem ersten Treibrollengerüst angeordnete oxidationsvermeidende oder zumindest oxidationshemmende Inertisierungskammer. Der Bandspeicher zwischen dem ersten Treibrollengerüst und dem zweiten Treibrollengerüst ist ebenfalls als Inertisierungskammer ausgebildet. Die Inertisierungskammern können gleichzeitig auch als Temperaturausgleichszonen einsetzt werden, und weisen entsprechende Einrichtungen für die Kühlung oder Heizung des inerten Gases auf.To avoid reoxidation effects on the hot metal band, the metal band passes through one between the two-roll caster and the first capstan arranged oxidation-preventing or at least oxidation-inhibiting Inerting. The tape storage between the first capstan and the second drive roller frame is also formed as an inerting chamber. The Inertisierungskammern can also be used as a temperature equalization zones be, and have appropriate facilities for the cooling or heating of the inert gas.

Weiters ist der Walzanlage eine Bandkühlstrecke zur kontrollierten Abkühlung des Metallbandes nachgeordnet. Daran schließt sich eine Querteilvorrichtung und gegebenenfalls eine Bandbesäumvorrichtung an, die der Bandwickelvorrichtung vorgeordnet sind und es sind zumindest vor und nach der Querteilvorrichtung Treibrollengerüste angeordnet, die das Walzband während des Schnittes unter Zug halten.Furthermore, the rolling mill is a belt cooling line for controlled cooling of the Subordinated metal band. This is followed by a cross-cut device and optionally a Bandbesäumvorrichtung, the tape winding device are arranged upstream and it is at least before and after the Querteilvorrichtung Drive roller stands arranged, the rolled strip during the cut under train hold.

Zur Aufrechterhaltung eines kontinuierlichen Gießbetriebes ist oberhalb der Zweiwalzengießvorrichtung ein Zwischengefäß für die Schmelzenüberleitung und oberhalb diesem eine Gießpfanne für die Schmelzenbereitstellung angeordnet. Die Gießpfanne ist in einem Auslegerarm eines Pfannendrehturms abgestützt, der um eine vertikale Achse von einer Gießposition in eine Pfannenwechselposition und zurück schwenkbar abgestützt ist.To maintain a continuous casting operation is above the Zweiwalzengießvorrichtung an intermediate vessel for the melt transfer and arranged above this a ladle for the melt supply. The Ladle is supported in a cantilever arm of a ladle turret, which is around a vertical axis from a pouring position to a ladle change position and back is supported pivotally.

Die Erfindung ist nachfolgend anhand mehrerer Ausführungsbeispiele, die in der Zeichnung in schematischer Darstellung veranschaulicht sind, beschrieben, wobei Fig. 1 eine Anlage in einer ersten Ausführungsform in einem schematischen Längsschnitt durch die Anlage zeigt, Fig. 2 eine Anlage in einer zweiten Ausführungsform in einem schematischen Längsschnitt durch die Anlage zeigt und Fig. 3 eine Anlage mit einem integrierten Walzgerüst in einem schematische Längsschnitt durch die Anlage zeigt.The invention is based on several embodiments, which in the Drawing are illustrated in schematic representation, described in which Fig. 1 a plant in a first embodiment in a schematic longitudinal section through the plant shows, Fig. 2 shows a plant in a second embodiment in a shows a schematic longitudinal section through the system and Fig. 3 shows a plant with a integrated rolling mill in a schematic longitudinal section through the plant shows.

In den nachfolgenden Beschreibung sind in den verschiedenen Ausführungsformen wiederkehrende Vorrichtungen stets mit dem gleichen Bezugszeichen bezeichnet. Fig. 1 zeigt eine erfindungsgemäße Anlage zur Herstellung eines Metallbandes 1 von wenigen Millimeter Dicke ausgehend von einer Zweiwalzengießvorrichtung 2, die durch die beiden Gießwalzen 3, 4 schematisch angedeutet ist. Schmelze wird über ein Zwischengefäß 5 , welche aus einer Gießpfanne 6 zufließt, der Zweiwalzengießvorrichtung 2 zugeführt. In Fig. 3 ist ein die Gießpfannen 6 tragender Pfannendrehturm 7 dargestellt, um dessen vertikale Achse er drehbar abgestützt ist. Damit wird der Transport der Gießpfannen 6 von einer Gießposition oberhalb des Zwischengefäßes 5 in eine gegenüberliegende Pfannenwechselposition und damit ein Sequenzgießprozess ermöglicht. Das Metallband 1 wird in der Zweiwalzengießanlage 2 entlang der Mantelflächen der Gießwalzen 3, 4 gebildet und durch deren Drehung nach unten ausgefördert. Das Metallband wird in einem Viertelbogen in horizontale Richtung umgelenkt und dort von einem ersten Treibrollengerüst 8 erfasst und unmittelbar in einen als Schlingengrube ausgebildeten Bandspeicher 9 weitergeleitet. Am Ausgang aus dem Bandspeicher 9 wird das Metallband vom zweiten Treibrollengerüst 10 erfasst und einer Bandwickelvorrichtung 11 zugeführt. Dort wird das Metallband 1 zu Bunden gewickelt. Eine der Bundwickelvorrichtung 11 vorgeordnete Bandbesäum- und Querteileinrichtung 12 mit vor- und nachgeordneten Treibrollengerüsten 13, 14 ist nur in Fig. 3 dargestellt.In the following description are in the various embodiments Recurring devices are always denoted by the same reference numerals. Fig. 1 shows a plant according to the invention for producing a metal strip 1 of a few Millimeters thick starting from a two-roll caster 2, passing through the two Casting rollers 3, 4 is indicated schematically. Melt is via an intermediate vessel 5, which flows from a ladle 6, the two-roll caster 2 is supplied. In FIG. 3 shows a ladle turret 7 carrying the ladles 6, in order to show the same vertical axis it is rotatably supported. Thus, the transport of the ladles 6 of a casting position above the tundish 5 in an opposite Pfannenwechselposition and thus a Sequenzgießprozess allows. The metal band 1 is in the two-roll caster 2 along the lateral surfaces of the casting rolls 3, 4th formed and discharged by the rotation down. The metal band will be in a quarter arc in horizontal direction and there deflected by a first Stem roller frame 8 detected and immediately trained in a loop pit Tape storage 9 forwarded. At the output from the tape storage 9, the metal strip detected by the second traction roller frame 10 and fed to a tape winding device 11. There, the metal band 1 is wound into coils. One of the coil winding device 11 upstream Bandbesäum- and cross-cutting device 12 with upstream and downstream Drive roller stands 13, 14 is shown only in Fig. 3.

Eine Regeleinrichtung 15 verbindet einen Drehantrieb der Gießwalzen 3 mit dem Drehantrieb des ersten Treibrollengerüstes 8 und ermöglicht eine weitgehend konstante Bandführung zwischen Zweiwatzengießanlage 2 und erstem Treibrollengerüst 8. Eine zweite Regeleinrichtung 16 regelt die Haspelgeschwindigkeit und die Transportgeschwindigkeit im zweiten Treibrollengerüst 10 in Abhängigkeit von der Transportgeschwindigkeit im ersten Treibrollengerüst 8 und/oder der Gießgeschwindigkeit.A control device 15 connects a rotary drive of the casting rolls 3 with the Rotary drive of the first drive roller frame 8 and allows a largely constant Tape guide between two-caster casting machine 2 and first drive roller frame 8. A second control device 16 regulates the reel speed and the Transport speed in the second drive roller frame 10 as a function of Transport speed in the first drive roller frame 8 and / or the Casting speed.

Fig. 2 zeigt eine weitere Ausführungsform mit einem verbesserten Prozessleitsystem. Zwischen Zweiwaizengießantage 2 und dem ersten Treibrollengerüst 8 ist ein Bandortungssystem 17 angeordnet, welches die augenblickliche Position des Metallbandes 1 in diesem Bereich ermittelt. Dies kann beispielsweise durch optische, thermische, akustische oder mechanische Messverfahren erfolgen. Es ist insbesondere eine Messeinrichtung zu wählen, die einer höheren thermischen Beanspruchung standhält. das Bandortungssystem ist regelungstechnisch mit der Regeleinrichtung 15 verbunden. Eine Umlenk-Stützvorrichtung 18 leitet das Metällband oberflächenschonend zum ersten Treibrollengerüst 8.FIG. 2 shows a further embodiment with an improved process control system. Between Zweiwaizengießantage 2 and the first traction roller frame 8 is a Bandortungssystem 17 is arranged, which is the instantaneous position of the Metal strip 1 determined in this area. This can be done, for example, by optical, thermal, acoustic or mechanical measuring methods take place. It is special to choose a measuring device that has a higher thermal stress withstand. the band positioning system is control technology with the control device 15th connected. A deflection support device 18 leads the Metällband surface gentle to the first traction roller frame 8.

Fig. 3 veranschaulicht eine Anlage unter Einbindung einer Walzanlage zur Erzeugung eines gewalzten Metallbandes mit ausgezeichnetem Walzgefüge und hervorragender Oberflächengüte, vergleichbar einem herkömmlichen kaltgewalzten Metallband. Dem zweiten Treibrollengerüst 10 ist eine von einem einzelnen Quarto-Gerüst gebildeten Walzanlage 19 nachgeordnet. Die Arbeitswalzen 20 können mit nicht dargestellte Aufheizeinrichtungen ausgestattet sein. Der Walzanlage 19 ist eine Temperatureinstelleinrichtung 21 unmittelbar vorgeordnet, die direkt an das zweite Treibrollengerüst 10 anschließt. Der Antriebsmotor des zweiten Treibrollengerüstes 10 ist mit dem Antrieb der Walzanlage 19 durch eine Regeleinrichtung 24 so gekoppelt, dass das Metallband in der Temperatureinstelleinrichtung 21 unter Zug gehalten ist. Damit ist eine optimale Temperaturführung in der Walzanlage 19 gewährleistet. Zwischen der Zweiwalzengießanlage 2 und dem ersten Treibrollengerüst 8 ist eine Inertisierungskammer 22 und zwischen dem ersten Treibrollengerüst 8 und dem zweiten Treibrollengerüst 10 ist eine weitere Inertisierungskammer 23 angeordnet. Der Bandspeicher 9 bidet gleichzeitig die zweite linertisierungskammer 23. Damit wird die Reoxidation des heißen Metallbandes vermieden.Fig. 3 illustrates a plant with the involvement of a rolling mill for the production a rolled metal strip with excellent rolling texture and excellent Surface quality, comparable to a conventional cold-rolled metal strip. the second traction roller stand 10 is one formed by a single quarto skeleton Subordinate rolling mill 19. The work rolls 20 may not shown Heater facilities be equipped. The rolling mill 19 is a temperature adjusting device 21 directly upstream, directly to the second drive roller frame 10th followed. The drive motor of the second drive roller frame 10 is connected to the drive of Rolling mill 19 coupled by a control device 24 so that the metal strip in the Temperature adjustment 21 is held under train. This is an optimal Temperature control ensured in the rolling mill 19. Between the Zweiwalzengießanlage 2 and the first traction roller frame 8 is a Inertisierungskammer 22 and between the first traction roller frame 8 and the second Driving roller frame 10, a further inerting chamber 23 is arranged. Of the Band storage 9 simultaneously bidet the second linertisierungskammer 23. Thus, the Reoxidation of the hot metal strip avoided.

Claims (28)

  1. Method for the production of a hot-rolled metal strip, preferably a steel strip, having the following steps:
    delivery of metal melt to a two-roll casting device (2) and formation of a cast metal strip (1) in the casting gap between two casting rolls (2, 3), the axes of rotation of which lie in a horizontal plane (two-roll casting method), with a thickness of the cast strip of 1 to 20 mm, preferably 1.5 to 12 mm,
    direct deflection of the cast metal strip emerging freely downwards from the two-roll casting device (2) from the vertical casting direction into an essentially horizontal transport direction,
    subsequent reception and regulated transfer of the metal strip through a first driving-roller stand (8) at a first transport speed,
    brief storage of the metal strip in a strip store (9) between the first driving-roller stand (8) and a second driving-roller stand (10),
    reception and transfer of the metal strip through a second driving-roller stand (10) at a second transport speed,
    final winding-up of the metal strip under tension into coils, characterized in that
    the metal strip is conveyed, between the two-roll casting device (2) and afirst driving-roller stand (8), through an inertization chamber (22) with an oxidation-preventing or oxidation-inhibiting atmosphere, and
    a reduction in thickness of the metal strip takes place through rolling deformation with a minimum degree of reduction of 20%, in a rolling plant (19) under strip tension downstream of the second driving-roller stand (10), a strip thickness of 0.5 to 10 mm being achieved.
  2. Method according to Claim 1, characterized in that the deflection of the cast metal strip emerging freely downwards from the two-roll casting device (2) from the vertical casting direction into an essentially horizontal transport direction takes place within a corridor formed by a quarter arc.
  3. Method according to Claim 1 or 2, characterized in that the transport speed of the metal strip in the first driving-roller stand (8) is regulated as a function of the casting speed.
  4. Method according to one of the preceding claims, characterized in that the position of the metal strip in the region of deflection from the vertical direction to the horizontal direction, preferably the resting point of the metal strip on a deflecting support device (18), is detected by a measurement by means of a strip location device (17), and the strip transport speed in the first driving-roller stand (8) and/or the casting speeds in the casting gap are regulated as a function of this.
  5. Method according to one of the preceding claims, characterized in that the winding-up of the metal strip under tension is regulated as a function of the transport speed of the metal strip in the first driving-roller stand (8) or in the second driving-roller stand (10), if appropriate with the casting speed being taken into account.
  6. Method according to one of the preceding claims, characterized in that a reduction in thickness and an establishment of the structure of the metal strip take place by roll-forming in a rolling plant (19) with a minimum degree of reduction of 20%, under strip tension, after the run through the second driving-roller stand (10), a final strip thickness of 0.7 to 6 mm being achieved.
  7. Method according to Claim 6, characterized in that the thickness reduction takes place by means of a single rolling pass.
  8. Method according to one of Claims 6 or 7, characterized in that the reduction in thickness of the metal strip takes place in the rolling plant (19) by means of working rolls (20) preheated to at least 10°C above the hall temperature, preferably 20°C above the hall temperature.
  9. Method according to one of the preceding claims, characterized in that, downstream of the second driving-roller stand (10) and even before the reduction in thickness taking place, if appropriate, in the rolling plant (19), a temperature rise or temperature compensation in the metal strip, but at least a balancing of the temperature of the strip edges with the prevailing strip temperature, take place in a temperature-setting zone (21).
  10. Method according to one of the preceding claims, characterized in that the metal strip is held under strip tension in the temperature-setting zone (21) by means of the second driving-roller stand (10).
  11. Method according to one of the preceding claims, characterized in that the metal strip is maintained under an oxidation-preventing or oxidation-inhibiting atmosphere in the region of the strip store (9).
  12. Method according to one of the preceding claims, characterized in that the metal strip is briefly stored in the strip store (9) as a freely hanging loop.
  13. Method according to one of the preceding claims, characterized in that, before being wound up, the metal strip is divided according to predetermined coil weights and, if appropriate, the strip edges are trimmed.
  14. Plant for the production of a hot-rolled metal strip (1), preferably a steel strip, having the following devices:
    a two-roll casting device (2) with two casting rolls (3, 4) which form a casting gap and the axes of rotation of which lie in a horizontal plane, for producing a cast metal strip,
    a deflecting support device (18) for deflecting the cast metal strip (1) act of a vertical casting direction into an essentially horizontal transport direction, between the two-roll casting device (2) and a following first driving-roller stand (8),
    a first driving-roller stand (8) for the reception and regulated transfer of the cast metal strip,
    a strip store (9), preferably designed as a loop pit, for the brief storage of the metal strip between a first driving-roller stand (8) and a second driving-roller stand (10),
    a second driving-roller stand (10) for the reception and transfer of the metal strip, and
    a strip-winding device (11) for the regulated winding-up of the metal strip under tension, characterized in that
    an inertization chamber (22) is arranged between the two-roll casting device (2) and a first driving-roller stand (8), and
    a rolling plant (19) for thickness reduction on the cast metal strip is arranged downstream of the second driving-roller stand (10).
  15. Plant according to Claim 14, characterized in that, for the deflection of the cast metal strip (1) from the vertical casting direction into an essentially horizontal transport direction, a corridor which is formed by a quarter arc and, at least in a part-region is formed by a deflecting support device (18) is provided between the two-roll casting device (2) and the following first driving-roller stand (8).
  16. Plant according to Claim 14 or 15, characterized in that a rotary drive of the casting rolls (3) and a rotary drive of the first driving-roller stand (8) are connected to a regulating device (15) for regulating the transport speed of the metal strip (1) in the first driving-roller stand (8).
  17. Plant according to one of the preceding Claims 14 to 16, characterized in that a strip location device (17) is arranged between the two-roll casting device (2) and the first driving-roller stand (8), the said strip location device being coupled in regulation terms to the first driving-roller stand (8), if appropriate also to the two-roll casting device (2), via a regulating device (15).
  18. Plant according to one of the preceding Claims 14 to 17, characterized in that the rolling plant (19) is formed by a single rolling stand, preferably a four-high rolling stand.
  19. Plant according to Claim 14 or 18, characterized in that the working rolls (20) of the rolling plant (19) are assigned heating devices, preferably an induction-heating device or gas burner capable of being advanced to the working rolls.
  20. Plant according to one of Claims 14 to 19, characterized in that downstream of the second driving-roller stand (10), the rolling plant (19) is preceded by a temperature-setting device (21), in particular strip heating for the strip-temperature rise, preferably strip-edge heating precedes.
  21. Plant according to one of Claims 14 to 20, characterized in that a drive motor of the second driving-roller stand (10) is coupled to the drive of the rolling plant (19) by means of a regulating device (24) in such a way that the metal strip (1) is held under tension in the temperature-setting device (21) and/or in the rolling plant (19).
  22. Plant according to one of Claims 14 to 21, characterized in that the strip store (9) between the first driving-roller stand (8) and the second driving-roller stand (10) is designed as an inertization chamber (23).
  23. Plant according to one of Claims 14 to 22, characterized in that the inertization chamber (23) is designed additionally as a temperature-compensating zone.
  24. Plant according to one of Claims 14 to 23, characterized in that the rolling plant (19) is followed by a strip-cooling section for the controlled cooling of the metal strip.
  25. Plant according to one of Claims 14 to 24, characterized in that a cross-dividing device (12) and, if appropriate, a strip-trimming device precede the strip-winding device (11) and driving-roller stands (13, 14) which keep the rolled strip under tension during cutting are arranged at least upstream and downstream of the cross-dividing device (12).
  26. Plant according to one of Claims 14 to 25, characterized in that the deflecting support device (18) is designed as an arcuate guide scaffold which extends from the first driving-roller stand (8) over at least a subsection of the path to the two-roll casting device (2) and which is preferably articulated pivotably in the plant supporting framework.
  27. Plant according to one of Claims 14 to 26, characterized in that a tundish (5) for melt transfer is arranged above the two-roll casting device (2) and a casting ladle (6) for melt preparation is arranged above the said tundish.
  28. Plant according to Claim 27, characterized in that the casting ladle (6) is supported in an extension arm of a ladle turret (7) which is supported so as to be pivotable about a vertical axis from a casting position into a ladle-changing position and back again.
EP01983261A 2000-06-05 2001-05-11 Method and installation for producing a metal strip Revoked EP1289687B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT01983261T ATE294039T1 (en) 2000-06-05 2001-05-11 METHOD AND SYSTEM FOR PRODUCING A METAL STRIP

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0098200A AT409351B (en) 2000-06-05 2000-06-05 METHOD AND SYSTEM FOR PRODUCING A METAL STRIP
AT9822000 2000-06-05
PCT/EP2001/005394 WO2001094049A1 (en) 2000-06-05 2001-05-11 Method and installation for producing a metal strip

Publications (2)

Publication Number Publication Date
EP1289687A1 EP1289687A1 (en) 2003-03-12
EP1289687B1 true EP1289687B1 (en) 2005-04-27

Family

ID=3683802

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01983261A Revoked EP1289687B1 (en) 2000-06-05 2001-05-11 Method and installation for producing a metal strip

Country Status (9)

Country Link
US (1) US6907915B2 (en)
EP (1) EP1289687B1 (en)
JP (1) JP2003534922A (en)
KR (1) KR100740759B1 (en)
AT (1) AT409351B (en)
AU (1) AU780386B2 (en)
DE (1) DE50106040D1 (en)
MX (1) MXPA02012006A (en)
WO (1) WO2001094049A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008005116A1 (en) * 2008-01-14 2009-07-23 Salzgitter Flachstahl Gmbh Method for manufacturing metal band with different material properties over length and breadth, involves carrying out partial heat treatment of band before coiling to coils or subsequent processing to panels

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT501314B1 (en) 2004-10-13 2012-03-15 Voest Alpine Ind Anlagen METHOD AND DEVICE FOR CONTINUOUS PRODUCTION OF A THIN METAL STRIP
KR100660228B1 (en) * 2005-12-26 2006-12-21 주식회사 포스코 Casted bar conveyor apparatus for continuous casting and rolling of aluminum alloys
DE102007041263A1 (en) * 2007-08-30 2009-03-05 Thyssenkrupp Nirosta Gmbh Apparatus and method for casting strips of a molten metal, in particular a molten steel
AU2008100847A4 (en) * 2007-10-12 2008-10-09 Bluescope Steel Limited Method of forming textured casting rolls with diamond engraving
DE102007056192A1 (en) * 2007-11-21 2009-05-28 Sms Demag Ag Method and device for producing a strip of metal
DE102011003046A1 (en) * 2011-01-24 2012-07-26 ACHENBACH BUSCHHüTTEN GMBH Finishing roll device and method for producing a magnesium strip in such
US20190105720A1 (en) * 2017-10-05 2019-04-11 Honeywell International Inc. System and method for trim loss optimization for metal industries

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1963147C3 (en) * 1969-12-17 1974-02-14 Demag Ag, 4100 Duisburg Storage of distribution channels on a carousel device for casting ladles in continuous casting plants
JPS56119607A (en) 1980-02-25 1981-09-19 Mitsubishi Heavy Ind Ltd Continuous manufacture of thin steel sheet
JPS6349350A (en) 1986-04-17 1988-03-02 Kawasaki Steel Corp Method and equipment for producing rapid cooling strip
JPS63238963A (en) * 1987-03-27 1988-10-05 Hitachi Ltd Method and apparatus for producing metal strip
US4842042A (en) * 1988-03-07 1989-06-27 Battelle Development Corporation Thickness control of direct cast strip
US5503217A (en) * 1990-07-23 1996-04-02 Davy Mckee (Sheffield) Limited Method of manufacturing metal strip
GB9016142D0 (en) * 1990-07-23 1990-09-05 Davy Distington Ltd Method of manufacturing metal strip
JPH0824999B2 (en) * 1991-02-19 1996-03-13 新日本製鐵株式会社 Twin roll type thin plate continuous casting slab conveyor
JPH0699253A (en) * 1992-09-19 1994-04-12 Sumitomo Metal Ind Ltd Cast strip carrying method after casting for twin roll type strip continuous casting and its equipment
KR960705646A (en) 1993-11-11 1996-11-08 다카오 미코시바 Continuous cast steel strip
JPH07331330A (en) * 1994-04-14 1995-12-19 Nippon Steel Corp Manufacture of chromium-nickel stainless steel sheet excellent in surface quality and manufacturing equipment for cast strip
JP3273103B2 (en) 1994-09-16 2002-04-08 新日本製鐵株式会社 Control method of direct connection type continuous casting and rolling equipment
JPH08187506A (en) * 1995-01-09 1996-07-23 Nippon Steel Corp Continuous casting/rolling equipment for thin cast slab and bridle roll
AUPN101495A0 (en) * 1995-02-10 1995-03-09 Bhp Steel (Jla) Pty Limited Casting steel strip
EP0760397B1 (en) * 1995-04-14 2002-08-28 Nippon Steel Corporation Equipment for manufacturing stainless steel strip
CN1058528C (en) * 1995-04-14 2000-11-15 新日本制铁株式会社 Equipment for manufacturing stainless steel strip
JPH08294750A (en) * 1995-04-24 1996-11-12 Nippon Steel Corp Twin drum type continuous casting machine
JP2750096B2 (en) * 1995-05-08 1998-05-13 新日本製鐵株式会社 Strip continuous casting hot rolling heat treatment pickling equipment and method for producing pickling coil
JPH09239498A (en) 1996-03-06 1997-09-16 Nippon Steel Corp Continuous caster
AT406026B (en) 1998-03-25 2000-01-25 Voest Alpine Ind Anlagen CONTINUOUS CASTING MACHINE FOR CONTINUOUSLY CASTING A THIN STRAP AND METHOD THEREFOR

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008005116A1 (en) * 2008-01-14 2009-07-23 Salzgitter Flachstahl Gmbh Method for manufacturing metal band with different material properties over length and breadth, involves carrying out partial heat treatment of band before coiling to coils or subsequent processing to panels
DE102008005116B4 (en) * 2008-01-14 2010-01-28 Salzgitter Flachstahl Gmbh Method and device for producing a metal strip with different material properties over length and width

Also Published As

Publication number Publication date
EP1289687A1 (en) 2003-03-12
ATA9822000A (en) 2001-12-15
US6907915B2 (en) 2005-06-21
AT409351B (en) 2002-07-25
DE50106040D1 (en) 2005-06-02
AU1358102A (en) 2001-12-17
KR100740759B1 (en) 2007-07-19
US20030173054A1 (en) 2003-09-18
MXPA02012006A (en) 2004-02-26
KR20030036212A (en) 2003-05-09
WO2001094049A1 (en) 2001-12-13
JP2003534922A (en) 2003-11-25
AU780386B2 (en) 2005-03-17

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