EP2445663B1 - Method and device for producing steel strips by means of belt casting - Google Patents

Method and device for producing steel strips by means of belt casting Download PDF

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Publication number
EP2445663B1
EP2445663B1 EP10726416.0A EP10726416A EP2445663B1 EP 2445663 B1 EP2445663 B1 EP 2445663B1 EP 10726416 A EP10726416 A EP 10726416A EP 2445663 B1 EP2445663 B1 EP 2445663B1
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Prior art keywords
casting
nozzle
plasma
belt
metal melt
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German (de)
French (fr)
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EP2445663A2 (en
Inventor
Hellfried Eichholz
Jochen Wans
Karl-Heinz Spitzer
Hans-Jürgen HECKEN
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SMS Group GmbH
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SMS Group GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • 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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0631—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a travelling straight surface, e.g. through-like moulds, a belt
    • 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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/0697—Accessories therefor for casting in a protected atmosphere
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/021—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular fabrication or treatment of ingot or slab
    • C21D8/0215—Rapid solidification; Thin strip casting

Definitions

  • the invention relates to a method for producing steel strips by means of strip casting according to the preamble of claim 1 and to a device according to claim 10.
  • a method of the generic type for producing steel strips by means of strip casting is known ( Steel Research 74 (2003), No 11/12, page 724-731 ).
  • this known as DSC process manufacturing method is suitable for the production of hot strip of lightweight steel.
  • melt is fed from a feed vessel via a runner and a siphon-like discharge nozzle formed as a casting nozzle on a revolving casting belt of a horizontal strip casting.
  • the discontinued melt solidifies to a pre-strip with a thickness in the range between 6 to 20 mm.
  • the pre-strip is subjected to a hot rolling process, To homogenize the melt distribution on the casting belt several rays of an inert gas in the form of a rake are distributed over the width of the molten bath directed against the transport direction in the task area.
  • a disadvantage of this strip casting plant is that it can lead to caking during operation on the outlet side region of the casting nozzle, which increasingly reduce the outlet cross section for the melt.
  • the caking forms especially in the critical triple point of Keramikg mandüse, circulating cooled casting belt and liquid molten metal and flow-unfavorable areas.
  • the object of the invention is to provide a method for producing steel strips by means of strip casting, in which the previously described problems are avoided, but at least significantly reduced. Another object is to provide a device for carrying out the method.
  • At least one plasma jet which inactivates and heats the exposure region acts on the outlet-side region of the casting nozzle and on the melt emerging therefrom, at least during the casting process.
  • the inventive method is basically suitable for the production of hot strips of various metallic materials, especially for lightweight steels, such as high modulus HSD ® steels.
  • the plasma is ignited in a conventional manner by high voltage or high frequency inductively or capacitively in the burner itself or against the molten metal and maintained with DC or AC.
  • the strength (intensity) of the plasma is advantageously set via a set of rules consisting of a gas mixing, pressure and flow regulator and a control device for the electrical parameters.
  • an inert gas such as argon or nitrogen used.
  • plasma gas but in addition to argon and nitrogen, other individual gases or gas mixtures with additions of H 2 , CO, CO 2 or CH 4 and other combinations can be used.
  • the surface (surface tension) of the metal film can be influenced very well.
  • existing hydrogen very well prevents the oxidation of the melt surface.
  • the flow behavior of the metal film and thus the wettability of the ceramic with regard to the prevention of caking can advantageously be influenced.
  • a nozzle-like element designed as an argon screen is arranged in front of the casting nozzle, which nozzle blocks the liquid steel on the casting nozzle
  • the argon rake is modified in such a way that one or more plasma burners can be integrated one after the other into the system, one after the other as seen in the melt flow direction, so that a structural unit is formed.
  • the plasma torches are positioned so that they can act on the edge area in particular over the entire width of the pouring nozzles.
  • the use of multiple burners is advantageous because it can increase the efficiency of inerting and heating.
  • the plasma torches act sectorally on the outlet-side casting nozzle area, wherein optimal targeted heating of the casting nozzle over its width or over the width of the exiting melt bath can be carried out via a specific separate temperature control of the individual burners.
  • the assembly is inventively made of a good heat conducting material, such. As copper, prepared and is cooled intensively with water.
  • the jet direction of the plasma torch is advantageously adjusted slightly inclined downwards in the direction of the liquid steel against the casting direction, in order to be able to influence the melt pool surface in a targeted manner.
  • the plasma torches are also slightly aligned in the direction of the edge region of the exiting melt.
  • FIG. 1 is a plan view of a schematic representation of the G mandüsen Kunststoffes a strip casting plant according to the invention shown.
  • Metal melt 7 runs in this illustration from left to right and is indicated by an arrow.
  • one of an argon rake for the uniform distribution of melt on the surface of the casting belt 3, and plasma torches 9 (FIG. FIG. 2 ) existing unit 4 made of copper according to the invention.
  • the plasma torches 9 are arranged so that their plasma jets 5 completely inertize the exit region of the molten metal 7 from the casting nozzle and the melt surface and can control the temperature of the melt.
  • the nozzles 6 of the argon rake are directed obliquely downward onto the molten metal 7.
  • FIG. 2 is the G cleverdüsen Scheme in a side view according to section A - A from FIG. 1 shown. From this view, which also consists of ceramic upper part 8 and the lower part 8 'of the pouring nozzle can be seen.
  • the assembly 4 with argon rake and plasma torches 9 is arranged in the outlet region of the molten metal 7 from the casting nozzle such that, on the one hand, the nozzles 6 (FIG. FIG. 1 ) of the argon grout evenly distribute the emerging molten metal on the casting belt 3 and on the other hand, the plasma jets 5 of the plasma torch 9 can completely inertize the exit region.
  • the plasma torches 9 are inclined according to the invention in the direction of the exiting melt.
  • the plasma torch 9 are cooled by cooling water bores 10 by means of water and supplied via a plasma gas supply 11 with plasma gas.

Description

Die Erfindung betrifft ein Verfahren zum Erzeugen von Stahlbändern mittels Bandgießen gemäß dem Oberbegriff des Anspruches 1 sowie eine Vorrichtung nach Anspruch 10.The invention relates to a method for producing steel strips by means of strip casting according to the preamble of claim 1 and to a device according to claim 10.

Aus der JP 62161443 A ist ein Verfahren zum Gießen von dünnen Drähten bekannt, bei dem ein heißes Gas auf die Mündung der Gießdüse geblasen wird, um Anbackungen zu vermeiden.From the JP 62161443 A A method of casting thin wires is known in which a hot gas is blown onto the mouth of the pouring nozzle to prevent caking.

Aus der JP 62077155 A ist es bekannt, die Seitenwangen bei einer Stranggießanlage mit Plasmabrennern zu erwärmen, um die Wanddicke des Stranges zu verringern.From the JP 62077155 A It is known to heat the side cheeks in a continuous casting plant with plasma torches to reduce the wall thickness of the strand.

Ein Verfahren der gattungsgemäßen Art zum Erzeugen von Stahlbändern mittels Bandgießen ist bekannt ( steel research 74 (2003), No 11/12, page 724 - 731 ). insbesondere ist dieses als DSC-Verfahren bekannte Herstellungsverfahren geeignet zur Herstellung von Warmband aus Leichtbaustahl.A method of the generic type for producing steel strips by means of strip casting is known ( Steel Research 74 (2003), No 11/12, page 724-731 ). In particular, this known as DSC process manufacturing method is suitable for the production of hot strip of lightweight steel.

Bei dem bekannten Verfahren wird Schmelze aus einem Zulaufgefäß über eine Gießrinne und einem siphonartig als Gießdüse ausgebildeten Auslaufbereich auf ein umlaufendes Gießband einer horizontalen Bandgießanlage aufgegeben. Durch intensive Kühlung des Gießbandes erstarrt die aufgegebene Schmelze zu einem Vorband mit einer Dicke im Bereich zwischen 6 bis 20 mm. Nach der Durcherstarrung wird das Vorband einem Warmwalzprozess unterzogen,
Zur Vergleichmäßigung der Schmelzenverteilung auf dem Gießband sind im Aufgabebereich mehrere Strahlen eines inerten Gases in Form eines Rechens über die Breite verteilt auf das Schmelzbad gegen die Transportrichtung gerichtet.In the known method melt is fed from a feed vessel via a runner and a siphon-like discharge nozzle formed as a casting nozzle on a revolving casting belt of a horizontal strip casting. By intensive cooling of the casting belt, the discontinued melt solidifies to a pre-strip with a thickness in the range between 6 to 20 mm. After solidification, the pre-strip is subjected to a hot rolling process,
To homogenize the melt distribution on the casting belt several rays of an inert gas in the form of a rake are distributed over the width of the molten bath directed against the transport direction in the task area.

Nachteilig bei dieser Bandgießanlage ist, dass es während des Betriebes am auslaufseitigen Bereich der Gießdüse zu Anbackungen kommen kann, die den Auslaufquerschnitt für die Schmelze zunehmend verringern.A disadvantage of this strip casting plant is that it can lead to caking during operation on the outlet side region of the casting nozzle, which increasingly reduce the outlet cross section for the melt.

Hierdurch bedingt kommt es zu einem ungleichmäßigen Zuführen des flüssigen Stahls auf das Band und in Folge zu Gießfehlern.As a result, there is an uneven supply of the liquid steel to the belt and consequently to casting defects.

Untersuchungen zur Ursache der Anbackungen haben gezeigt, dass zum Einen die im Vergleich zur Schmelze niedrigere Temperatur an der Gießdüse die Ansatzbildung erst ermöglicht, zum Anderen wird die aus Keramik bestehende Gießdüse beim Schmelzenaustritt von auf der Schmelzbadoberfläche entstehenden Oxiden benetzt, die dort haften bleiben und dann eine ideale Oberfläche für ein weiteres Anwachsen der Anbackungen bilden.Investigations into the cause of the caking have shown that on the one hand, the lower compared to the melt temperature at the casting nozzle allows the formation of deposits, on the other hand, the existing ceramic casting nozzle is wetted during melting of emerging on the melt surface oxides, which adhere there and then form an ideal surface for further growth of the caking.

Die Anbackungen bilden sich besonders im kritischen Tripelpunkt von Keramikgießdüse, umlaufendem gekühlten Gießband und flüssiger Metallschmelze und strömungsungünstigen Bereichen.The caking forms especially in the critical triple point of Keramikgießdüse, circulating cooled casting belt and liquid molten metal and flow-unfavorable areas.

Aufgabe der Erfindung ist es, ein Verfahren zum Erzeugen von Stahlbändern mittels Bandgießen anzugeben, bei dem die zuvor geschilderten Probleme vermieden, zumindest aber deutlich verringert werden. Eine weitere Aufgabe besteht darin, eine Vorrichtung zur Durchführung des Verfahrens anzugeben.The object of the invention is to provide a method for producing steel strips by means of strip casting, in which the previously described problems are avoided, but at least significantly reduced. Another object is to provide a device for carrying out the method.

Diese Aufgabe wird ausgehend vom Oberbegriff in Verbindung mit den kennzeichnenden Merkmalen des Anspruches 1 gelöst. Vorteilhafte Weiterbildungen sowie eine Vorrichtung zum Erzeugen von Warmbändern sind Gegenstand der weiteren Ansprüche.This object is achieved starting from the preamble in conjunction with the characterizing features of claim 1. Advantageous developments and an apparatus for producing hot strips are the subject of further claims.

Nach der Lehre der Erfindung wirkt auf den austrittsseitigen Bereich der Gießdüse und auf die daraus austretende Schmelze mindestens während des Gießvorgangs mindestens ein den Einwirkbereich inertisierender und erwärmender Plasmastrahl ein.According to the teachings of the invention, at least one plasma jet which inactivates and heats the exposure region acts on the outlet-side region of the casting nozzle and on the melt emerging therefrom, at least during the casting process.

Das erfindungsgemäße Verfahren ist grundsätzlich für die Erzeugung von Warmbändern aus den verschiedensten metallischen Werkstoffen geeignet, insbesondere auch für Leichtbaustähle, wie beispielsweise hochmangenhaltige HSD®-Stähle.The inventive method is basically suitable for the production of hot strips of various metallic materials, especially for lightweight steels, such as high modulus HSD ® steels.

Bei Versuchen hat sich herausgestellt, dass durch die Einwirkung eines Plasmastrahls auf den Austrittsbereich einer Gießdüse und auf die Oberfläche der austretenden Metallschmelze - bedingt durch die große chemische Aktivität, die hoch wirksame Inertisierung und die Erwärmung - das Entstehen von Anbackungen wirksam verhindert wird.Experiments have shown that the effect of caking is effectively prevented by the action of a plasma jet on the outlet region of a casting nozzle and on the surface of the exiting molten metal - due to the high chemical activity, the highly effective inerting and the heating.

Die Betriebszeiten und damit die Wirtschaftlichkeit der Bandgießanlage sowie die Qualität des gegossenen Bandes können dadurch deutlich gesteigert werden.The operating times and thus the profitability of the strip casting plant and the quality of the cast strip can be significantly increased.

Das Plasma wird in an sich bekannter Weise durch Hochspannung oder mit Hochfrequenz induktiv oder kapazitiv im Brenner selbst oder gegen die Metallschmelze gezündet und mit Gleichstrom oder Wechselstrom aufrechterhalten. Die Stärke (Intensität) des Plasmas wird dabei vorteilhaft über einen Regelsatz bestehend aus einem Gasmisch-, Druck- und Mengenregler und aus einer Regeleinrichtung für die elektrischen Parameter eingestellt.The plasma is ignited in a conventional manner by high voltage or high frequency inductively or capacitively in the burner itself or against the molten metal and maintained with DC or AC. The strength (intensity) of the plasma is advantageously set via a set of rules consisting of a gas mixing, pressure and flow regulator and a control device for the electrical parameters.

Durch die gut steuerbare Leistung des Plasmas und die hohe Temperatur des Plasmas kann vorteilhaft ein definierter Temperatureintrag in den Gießdüsenbereich eingestellt werden, um z. B. das Temperaturprofil in der Gießpfanne bzw. das Temperaturgefälle beim Gießen auszugleichen.Due to the well controllable performance of the plasma and the high temperature of the plasma can be advantageously set a defined temperature entry in the Gießdüsenbereich to z. B. compensate for the temperature profile in the ladle or the temperature gradient during casting.

Um eine Inertisierung zu erreichen und damit die Bildung von Oxiden auf der Schmelzenoberfläche, die in der Folge zu Anbackungen an der Gießdüse führen könnten, zu vermeiden, wird als Prozessgas für das Plasma vorteilhaft ein inertes Gas, wie z. B. Argon oder Stickstoff, verwendet.In order to achieve an inertization and thus to avoid the formation of oxides on the melt surface, which could subsequently lead to caking on the casting nozzle, is advantageous as the process gas for the plasma, an inert gas such. As argon or nitrogen used.

Als Plasmagas können aber neben Argon und Stickstoff auch andere Einzelgase oder auch Gasgemische mit Zusätzen von H2, CO, CO2 oder CH4 und auch andere Kombinationen eingesetzt werden.As plasma gas but in addition to argon and nitrogen, other individual gases or gas mixtures with additions of H 2 , CO, CO 2 or CH 4 and other combinations can be used.

Durch die definiert einstellbare Inertisierung kann die Oberfläche (Oberflächenspannung) des Metallfilms sehr gut beeinflusst werden. Beispielsweise verhindert vorhandener Wasserstoff sehr gut die Oxydation der Schmelzenoberfläche.Due to the defined adjustable inertization, the surface (surface tension) of the metal film can be influenced very well. For example, existing hydrogen very well prevents the oxidation of the melt surface.

Über die Inertisierung des Austrittsbereiches und eine gezielte Temperatursteuerung der Schmelzbadoberfläche kann vorteilhaft das Fließverhalten des Metallfilms und damit die Benetzbarkeit der Keramik im Hinblick auf die Vermeidung von Anbackungen beeinflusst werden.By means of the inerting of the exit region and a targeted temperature control of the melt pool surface, the flow behavior of the metal film and thus the wettability of the ceramic with regard to the prevention of caking can advantageously be influenced.

Die Anwachsungen im besonders kritischen Tripelpunkt von Keramikgießdüse, Gießband und flüssiger Metallschmelze können mit dem erfindungsgemäßen Verfahren vorteilhaft verhindert werden.The accretions in the particularly critical triple point of Keramikgießdüse, casting belt and liquid molten metal can be advantageously prevented by the method according to the invention.

Wie aus dem Stand der Technik bereits bekannt, ist vor der Gießdüse ein als Argonrechen ausgebildetes düsenartiges Element angeordnet, das den flüssigen Stahl auf der Gießdüse In einer ersten vorteilhaften Ausführungsform der Erfindung ist der Argonrechen derart modifiziert, dass ein oder mehrere Plasmabrenner nebeneinander oder in Schmelzflussrichtung gesehen hintereinander in das System integriert werden können, so dass eine Baueinheit entsteht. Die Plasmabrenner sind dabei so positioniert, dass diese über die gesamte Breite der Gießdüsen insbesondere auch auf den Kantenbereich einwirken können. Der Einsatz mehrerer Brenner ist vorteilhaft, weil damit die Effizienz der Inertisierung und Erwärmung gesteigert werden kann.As is already known from the prior art, a nozzle-like element designed as an argon screen is arranged in front of the casting nozzle, which nozzle blocks the liquid steel on the casting nozzle In a first advantageous embodiment of the invention, the argon rake is modified in such a way that one or more plasma burners can be integrated one after the other into the system, one after the other as seen in the melt flow direction, so that a structural unit is formed. The plasma torches are positioned so that they can act on the edge area in particular over the entire width of the pouring nozzles. The use of multiple burners is advantageous because it can increase the efficiency of inerting and heating.

In einer zweiten vorteilhaften Ausführungsform wirken die Plasmabrenner sektoral auf den austrittsseitigen Gießdüsenbereich ein, wobei über eine gezielte separate Temperatursteuerung der einzelnen Brenner eine optimale Erwärmung der Gießdüse über deren Breite bzw. über die Breite des austretenden Schmelzbades vorgenommen werden kann.In a second advantageous embodiment, the plasma torches act sectorally on the outlet-side casting nozzle area, wherein optimal targeted heating of the casting nozzle over its width or over the width of the exiting melt bath can be carried out via a specific separate temperature control of the individual burners.

Die Baueinheit ist erfindungsgemäß aus einem gut wärmeleitenden Material, wie z. B. Kupfer, hergestellt und wird mit Wasser intensiv gekühlt.The assembly is inventively made of a good heat conducting material, such. As copper, prepared and is cooled intensively with water.

Es ist jedoch auch möglich, die Plasmabrenner unabhängig vom Argonrechen anzuordnen, wenn dies für den jeweiligen Einsatzzweck sinnvoller erscheint.However, it is also possible to arrange the plasma torches independently of the argon rake, if this seems more appropriate for the respective application.

Die Strahlrichtung der Plasmabrenner ist entgegen der Gießrichtung vorteilhaft leicht nach unten geneigt in Richtung des flüssigen Stahls eingestellt, um auch die Schmelzbadoberfläche gezielt beeinflussen zu können. In den Kantenbereichen der Gießdüse sind die Plasmabrenner dafür auch leicht in Richtung Kantenbereich der austretenden Schmelze ausgerichtet.The jet direction of the plasma torch is advantageously adjusted slightly inclined downwards in the direction of the liquid steel against the casting direction, in order to be able to influence the melt pool surface in a targeted manner. In the edge regions of the casting nozzle, the plasma torches are also slightly aligned in the direction of the edge region of the exiting melt.

In einer Zeichnung wird das erfindungsgemäße Verfahren näher erläutert. Es zeigen:

Figur 1
in einer Draufsicht, eine schematische Darstellung des Gießdüsenbereiches einer erfindungsgemäßen Bandgießanlage ,
Figur 2
wie Figur 1 in einer Seitenansicht.
In a drawing, the inventive method is explained in detail. Show it:
FIG. 1
in a plan view, a schematic representation of the Gießdüsenbereiches a strip casting plant according to the invention,
FIG. 2
as FIG. 1 in a side view.

In Figur 1 ist in einer Draufsicht eine schematische Darstellung des Gießdüsenbereiches einer erfindungsgemäßen Bandgießanlage dargestellt.In FIG. 1 is a plan view of a schematic representation of the Gießdüsenbereiches a strip casting plant according to the invention shown.

Metallschmelze 7 verläuft in dieser Darstellung von links nach rechts und ist durch einen Pfeil gekennzeichnet.Metal melt 7 runs in this illustration from left to right and is indicated by an arrow.

Im Bereich des Austritts der Metallschmelze 7 aus der Gießdüse ist eine aus einem Argonrechen, zur gleichmäßigen Schmelzenverteilung auf der Oberfläche des Gießbandes 3, und Plasmabrennern 9 (Figur 2) bestehende erfindungsgemäße Baueinheit 4 aus Kupfer dargestellt.In the region of the exit of the molten metal 7 from the casting nozzle, one of an argon rake for the uniform distribution of melt on the surface of the casting belt 3, and plasma torches 9 (FIG. FIG. 2 ) existing unit 4 made of copper according to the invention.

Die Plasmabrenner 9 sind so angeordnet, dass deren Plasmastrahlen 5 den Austrittsbereich der Metallschmelze 7 aus der Gießdüse und die Schmelzenoberfläche vollständig inertisieren und die Temperatur der Schmelze steuern können.The plasma torches 9 are arranged so that their plasma jets 5 completely inertize the exit region of the molten metal 7 from the casting nozzle and the melt surface and can control the temperature of the melt.

Zur Vergleichmäßigung der Schmelzenverteilung auf dem Gießband 3 sind die Düsen 6 des Argonrechens schräg nach unten auf die Metallschmelze 7 gerichtet.To even out the distribution of melt on the casting belt 3, the nozzles 6 of the argon rake are directed obliquely downward onto the molten metal 7.

In Figur 2 ist der Gießdüsenbereich in einer Seitenansicht gemäß Schnitt A - A aus Figur 1 dargestellt. Aus dieser Ansicht sind das ebenfalls aus Keramik bestehende Oberteil 8 und das Unterteil 8' der Gießdüse ersichtlich.In FIG. 2 is the Gießdüsenbereich in a side view according to section A - A from FIG. 1 shown. From this view, which also consists of ceramic upper part 8 and the lower part 8 'of the pouring nozzle can be seen.

Die Baueinheit 4 mit Argonrechen und Plasmabrennern 9 ist im Austrittsbereich der Metallschmelze 7 aus der Gießdüse so angeordnet, dass einerseits die Düsen 6 ( Figur 1) des Argonrechens die austretende Metallschmelze gleichmäßig auf dem Gießband 3 verteilen und andererseits die Plasmastrahlen 5 der Plasmabrenner 9 den Austrittsbereich vollständig inertisieren können.The assembly 4 with argon rake and plasma torches 9 is arranged in the outlet region of the molten metal 7 from the casting nozzle such that, on the one hand, the nozzles 6 (FIG. FIG. 1 ) of the argon grout evenly distribute the emerging molten metal on the casting belt 3 and on the other hand, the plasma jets 5 of the plasma torch 9 can completely inertize the exit region.

Für eine gezielte Temperatursteuerung der Metallschmelze 7 sind die Plasmabrenner 9 erfindungsgemäß in Richtung der austretenden Schmelze geneigt.For a targeted temperature control of the molten metal 7, the plasma torches 9 are inclined according to the invention in the direction of the exiting melt.

Die Plasmabrenner 9 werden über Kühlwasserbohrungen 10 mittels Wasser gekühlt und über eine Plasmagaszuführung 11 mit Plasmagas versorgt.The plasma torch 9 are cooled by cooling water bores 10 by means of water and supplied via a plasma gas supply 11 with plasma gas.

Nicht dargestellt sind die Zuleitungen für die elektrische Versorgung der Plasmabrenner, die in der Baueinheit 4 integriert sind. Bezugszeichenliste Nr. Bezeichnung 1 Seitenteile Gießdüse 2 Seitenbegrenzungen Gießband 3 Gießband 4 Baueinheit aus Argonrechen und Plasmabrennern 5 Plasmastrahlen 6 düsenartiges Element 7 Metallschmelze 8.8' Ober- und Unterteil Gießdüse 9 Plasmabrenner 10 Kühlwasserbohrungen 11 Plasmagaszuführung Not shown are the leads for the electrical supply of the plasma torch, which are integrated in the unit 4. <B> LIST OF REFERENCES </ b> No. description 1 Side parts casting nozzle 2 Side boundaries Casting belt 3 casting belt 4 Assembly of argon screen and plasma torches 5 plasma jets 6 nozzle-like element 7 molten metal 8.8 ' Upper and lower part casting nozzle 9 plasma torch 10 Cooling water holes 11 Plasma gas supply

Claims (17)

  1. Method of producing steel strips by means of belt casting, in which a metal melt (7) is delivered under a protective gas from a feed vessel by way of a horizontally disposed pouring spout and a siphon-like outlet region, which is formed as a casting nozzle, onto a circulating casting belt (3) of a horizontal belt casting plant, characterised in that at least one plasma jet (5), which renders inert and heats the action region, acts on the outlet region of the casting nozzle (8, 8') and on the metal melt (7) issuing therefrom at least during the casting process.
  2. Method according to claim 1, characterised in that the plurality of plasma jets (5) acts sectorially on the entire outlet region of the casting nozzle (8, 8') and on the metal melt (7) issuing therefrom.
  3. Method according to claim 1 and 2, characterised in that the power and temperature of the plasma jet (5) produced is sectorially controllable.
  4. Method according to any one of claims 1 to 3, characterised in that an inert gas or a gas mixture with an inert gas is used for generating the plasma.
  5. Method according to claim 4, characterised in that argon or nitrogen is used as inert gas.
  6. Method according to claim 4 and 5, characterised in that an inert gas with additions of H2, CO, CO2 or CH4 is used as gas mixture.
  7. Method according to any one of claims 1 to 6, characterised in that the temperature of the issuing metal melt (7) is selectively influenced by the acting plasma jet (5) and compensation for the resulting temperature gradient from the feed vessel to the outlet region of the casting nozzle (8, 8') is provided.
  8. Method according to any one of claims 1 to 7, characterised in that the surface tension and thus the viscosity of the metal melt (7) issuing from the casting nozzle (8, 8') is selectively influenced.
  9. Method according to any one of claims 1 to 8, characterised in that the plasma jet (5) acts on the outlet region of the casting nozzle (8, 8') even before the start of the casting process.
  10. Device for producing steel strips by means of belt casting, consisting of a feed vessel, which contains the metal melt, with a horizontally disposed pouring spout and a siphon-like outlet region constructed as a casting nozzle (8, 8'), a primary cooling zone with a horizontal belt casting plant onto which the metal melt can be delivered under a protective gas, with two deflecting rollers and a circulating cooled casting belt (3), for carrying out the method according to any one of claims 1 to 9, characterised in that at least one plasma torch (9) directed towards the outlet region of the casting nozzle (8, 8') counter to the casting direction and generating a plasma jet (5) is arranged.
  11. Device according to claim 10, characterised in that a plurality of plasma torches (9) distributed over the casting nozzle width and acting sectorially on the casting nozzle are so arranged that the plasma jets cover the entire casting nozzle width.
  12. Device according to claim 11, characterised in that the plasma torches (9) are arranged one behind the other as seen in melt flow direction.
  13. Device according to any one of claims 10 to 12, wherein at least one nozzle-like element (6), which is constructed as a rake, for the issue of a plurality of gas jets of an inert gas for homogenising the melt distribution on the casting belt (3) is arranged in the delivery region of the metal melt (7) onto the casting belt (3), characterised in that the plasma torch (9) and the nozzle-like element (6) are comprised in a constructional unit (4).
  14. Device according to claim 13, characterised in that the assembly (4) is water-cooled.
  15. Device according to any one of claims 10 to 12, characterised in that the plasma torch (9) and the nozzle-like element (6) are arranged separately.
  16. Device according to claim 15, characterised in that the plasma torch (9) and the nozzle-like element (6) are each water-cooled.
  17. Device according to any one of claims 10 to 16, characterised in that the jet direction of the plasma torch (9) onto the lower outlet region of the casting nozzle is inclined in the direction of the metal melt (7).
EP10726416.0A 2009-06-26 2010-05-07 Method and device for producing steel strips by means of belt casting Active EP2445663B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009031236A DE102009031236B3 (en) 2009-06-26 2009-06-26 Producing steel strip by strip casting, comprises placing metal melt from feed vessel to rotating casting strip of horizontal strip casting system by casting groove and siphon-like outlet area formed as casting nozzle under protective gas
PCT/DE2010/000551 WO2010149125A2 (en) 2009-06-26 2010-05-07 Method and device for producing steel strips by means of belt casting

Publications (2)

Publication Number Publication Date
EP2445663A2 EP2445663A2 (en) 2012-05-02
EP2445663B1 true EP2445663B1 (en) 2016-08-10

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EP10726416.0A Active EP2445663B1 (en) 2009-06-26 2010-05-07 Method and device for producing steel strips by means of belt casting

Country Status (13)

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US (1) US8695685B2 (en)
EP (1) EP2445663B1 (en)
JP (1) JP5490888B2 (en)
KR (1) KR101391633B1 (en)
CN (1) CN102497945B (en)
BR (1) BRPI1016152B1 (en)
DE (1) DE102009031236B3 (en)
ES (1) ES2602466T3 (en)
PL (1) PL2445663T3 (en)
RU (1) RU2484920C1 (en)
UA (1) UA112836C2 (en)
WO (1) WO2010149125A2 (en)
ZA (1) ZA201109005B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010033018A1 (en) * 2010-07-31 2012-02-02 Sms Siemag Aktiengesellschaft Melt feeding system for strip casting
JP2017030033A (en) 2015-08-05 2017-02-09 Ｊｆｅスチール株式会社 Thin metal strip production apparatus
CN113210576B (en) * 2021-05-17 2022-12-13 上海大学 Method and device for producing metal thin strip

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU740398A1 (en) * 1977-12-22 1980-06-15 Предприятие П/Я Р-6930 Plant for pressure die casting of refractory alloys
GB2151761B (en) * 1983-12-13 1986-10-29 Daido Steel Co Ltd A melting and casting installation
JPS60187448A (en) * 1984-03-05 1985-09-24 Kobe Steel Ltd Continuous casting installation
JPS60187448U (en) 1984-05-22 1985-12-12 伊勢電子工業株式会社 fluorescent display tube
JPS6277155A (en) * 1985-09-30 1987-04-09 Nippon Steel Corp Twin roll type continuous casting method
JPS6277155U (en) 1985-11-01 1987-05-18
JPS62161443A (en) * 1986-01-09 1987-07-17 Nippon Steel Corp Casting method for fine metallic wire
JPS62161443U (en) 1986-04-01 1987-10-14
DE3707897A1 (en) * 1987-03-12 1988-09-22 Mannesmann Ag METHOD AND CASTING DEVICE FOR CASTING METAL STRIPS, ESPECIALLY STEEL
CH671351A5 (en) * 1987-04-10 1989-08-31 Battelle Memorial Institute
JPH0658840B2 (en) * 1988-04-26 1994-08-03 新日本製鐵株式会社 Transfer type plasma torch
JPH0234254A (en) * 1988-07-22 1990-02-05 Nisshin Steel Co Ltd Strip continuous casting machine
JPH07227647A (en) * 1994-02-22 1995-08-29 Sky Alum Co Ltd Production of long sized aluminum cast block
DE4407873C2 (en) * 1994-03-04 1997-04-10 Mannesmann Ag Method and device for cooling molten steel
US5651413A (en) * 1995-10-06 1997-07-29 Armco Inc. In-situ conditioning of a strip casting roll
CN1063690C (en) * 1997-11-14 2001-03-28 中国科学技术大学 Method for plasma heating ladle online to cast continuously at constant low overheated temperature
US7891407B2 (en) * 2004-12-13 2011-02-22 Nucor Corporation Method and apparatus for localized control of heat flux in thin cast strip
DE102009018683A1 (en) * 2009-04-23 2010-10-28 Sms Siemag Ag Method and device for continuous casting of a slab

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AU2010265242A1 (en) 2012-02-02
CN102497945A (en) 2012-06-13
PL2445663T3 (en) 2017-03-31
RU2484920C1 (en) 2013-06-20
US8695685B2 (en) 2014-04-15
KR101391633B1 (en) 2014-05-21
BRPI1016152A8 (en) 2016-05-03
BRPI1016152B1 (en) 2018-04-24
BRPI1016152A2 (en) 2016-04-19
DE102009031236B3 (en) 2010-12-02
CN102497945B (en) 2014-12-10
EP2445663A2 (en) 2012-05-02
WO2010149125A3 (en) 2011-03-24
UA112836C2 (en) 2016-11-10
WO2010149125A2 (en) 2010-12-29
ES2602466T3 (en) 2017-02-21
US20120125557A1 (en) 2012-05-24
KR20120016312A (en) 2012-02-23
ZA201109005B (en) 2012-07-25
JP5490888B2 (en) 2014-05-14
JP2012530607A (en) 2012-12-06

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