EP2445664B1 - Apparatus and method for horizontal casting of a metal strip - Google Patents

Apparatus and method for horizontal casting of a metal strip Download PDF

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Publication number
EP2445664B1
EP2445664B1 EP10732283.6A EP10732283A EP2445664B1 EP 2445664 B1 EP2445664 B1 EP 2445664B1 EP 10732283 A EP10732283 A EP 10732283A EP 2445664 B1 EP2445664 B1 EP 2445664B1
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EP
European Patent Office
Prior art keywords
metal strip
rollers
roller
imparting
profile
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EP10732283.6A
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German (de)
French (fr)
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EP2445664A1 (en
Inventor
Rolf Franz
Christian Mengel
Olaf Norman Jepsen
Karl-Heinz Spitzer
Hellfried Eichholz
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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
    • 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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/14—Plants for continuous casting
    • B22D11/143—Plants for continuous casting for horizontal casting

Definitions

  • the invention is in the field of horizontal strip casting.
  • a melt is passed from a task vessel to a cooled conveyor belt on which the melt begins to solidify into a strip.
  • Horizontal strip casting processes and installations are known from the prior art in which the cast product or the already solidified metal strip is fed to further processing steps, for example a rolling process.
  • a feature of the steel strip thus produced is the profile or thickness profile (crowning), d. H. the course of the tape thickness over the bandwidth seen.
  • the Vorbandprofil resulting from the casting process is limited and difficult to influence. The cause is often in relatively thin tape sections. In this case, profile and flatness are interdependent, as the material flow required for a profile change is limited.
  • the WO 2006/066552 A1 shows such a device for horizontal strip casting of steel.
  • the melt is passed on a conveyor belt, the one Cooling zone forms. Behind this cooling zone is followed by a second tempering zone.
  • the belt is already solidified depending on the temperature control. This can lead to an upward curvature of the edges, which can have negative effects on the casting process.
  • the publication mentions devices in the form of, for example, pairs of rollers which counteract this effect and depress the belt. An influence on the thickness profile is not provided here.
  • the thickness profile of the pre-strip results from the casting process and can no longer be adequately influenced in a subsequent rolling process, depending on the boundary condition.
  • Critical thickness profiles may be, for example, profiles with a wedge or even a ripple with a square or higher proportion. Such critical profiles are known to the person skilled in the art.
  • the font WO 2009/018973 A1 shows a similar device in which smoothing or driving rollers are arranged in the casting behind a conveyor belt and over a deflection roller of the conveyor belt.
  • the roles disclosed in this document also do not allow influencing the thickness profile of the metal strip. It is only possible to prevent buckling of the band edges, which is also the goal of the disclosed in this document roller assembly.
  • the profile or the thickness profile that is, the thickness profile of the tape in the direction of the width of the tape, can not be significantly influenced.
  • the thickness profile of a metal strip should be influenced as early as possible, in particular at the highest possible temperatures, ie in particular at low strengths of the metal strip, since the conditions for a material cross-flow improve with a reduction in strength, ie also with increasing temperature.
  • the possibility of deformation of the strip material is limited by the ductility of the material, ie by the ability to deform without mechanical damage, for example cracking, which decreases with increasing temperature.
  • the technical task is therefore mainly to provide a method to influence the thickness profile of a metal strip as early as possible.
  • the invention is defined by the features of method claim 1.
  • the profiling is carried out in the region between the deflection rollers or over one of the deflection rollers.
  • the method comprises a plurality of rolls which can be set for profiling above and below the metal strip, the profiling being effected by these rolls.
  • the conveyor belt forms a cooling zone and the method further comprises a tempering zone, which adjoins behind the conveyor belt in the casting direction, the metal strip in this tempering zone and / or in the cooling zone being influenced by the at least one roll that can be set for profiling becomes.
  • the profiling method comprises adjustable rollers with bale contour and / or curved rollers and / or horizontally displaceable rollers, wherein the metal strip is profiled by one or more of these rollers.
  • the method comprises at least one lower profiling roll which is arranged at the height of the fitting line with the metal strip.
  • rollers can be employed with a certain force force and / or position-controlled to the metal strip and cause an accurate profiling or thickness profiling.
  • the method represents a thin strip casting method for producing a pre-strip, in particular with a thickness of less than 40 mm.
  • the method according to the invention is particularly advantageous, in particular in the case of thin strip casting.
  • the at least one roller that can be set for profiling deforms the metal strip such that the metallurgical structure of the metal strip is changed.
  • the liquid melt 1 from a ladle / distributor trough 2 into a feed container 3 directed. From there, the liquid melt 1 is passed onto a conveyor belt 6, which is preferably cooled and forms a cooling zone.
  • the conveyor belt 6 runs around the two deflection rollers 7, 7 '. In this case, the melt 1 begins to solidify on the conveyor belt 6, whereby the metal strip 4 is formed.
  • Such arrangements or processes are known to the person skilled in the art.
  • the melt 1 forming the metal strip 4, preferably partially solidified is profiled by at least one roll 8, 8 ', 8 ", 9, 9', that is to say it deforms the rolls 8, 8 ', 8", 9, 9 'can be made profiling above or below the conveyor belt 6 to the metal strip 4 or be profiled in the casting behind the conveyor belt 6 to the metal strip 4.
  • the roller 8, 8 ', 8 ", 9, 9' preferably exerts a force on the surface of the belt 4.
  • the adjustment of a roller 8, 8 ', 8", 9, 9' is effected by force and / or position ,
  • a reduction in the thickness of the metal strip 4 can also be associated with the profiling.
  • profile or the thickness profile represents the distribution of the thickness of the metal strip 4 in the direction of the width of the metal strip 4.
  • the width direction of the metal strip 4 is perpendicular to the casting direction.
  • profile or thickness profile mentioned in particular does not correspond to the term occasionally used in some other fonts the same name, for example, describes a total bent in the width direction metal strip 4, but in which there is no profile or thickness profile change in the true sense, such as the a wedge shape.
  • the profiling rollers 8, 8 ', 8 “, 9, 9' can in particular form profiling roller pairs 8, 9, 8 ', 9', optionally also several of these roller pairs 8, 9, 8 ', 9'.
  • a profiling roll 8 "to be arranged exactly above one of the deflecting rollers 7, 7 ' in particular, as in FIG. 1 shown, above the last in the casting direction (right) deflection roller 7 '.
  • the region of the device which adjoins behind the conveyor belt 6 may be formed as Temper michszone, so that in this area the metal strip 4 either heated, that is, for example, maintained at a certain temperature, or is also cooled, approximately by spray nozzles ,
  • tempering zones or arrangements are known from the prior art.
  • rolls 8 ', 9' can be made profiling in the casting direction behind the conveyor belt 6 against the metal strip 4, even before the metal strip 4 has completely solidified or even at the highest possible temperatures.
  • a number of guide rollers may be arranged behind the conveyor belt 6. Such arrangements of guide rollers having a different function are also known from the prior art.
  • All rollers 9, 9 ' which are located below the metal strip 4, can be made to the metal strip 4, that they only have a leading function, that is, lie at the height of the passport with the metal strip 4. But it is also possible that the rollers 9, 9 ', as well as the rollers 8, 8', 8 "are made with a contact pressure or a force on the metal strip 4.
  • individual or all rollers 8, 8 ', 8 ", 9, 9' have a bale contour.
  • the profiling rollers 8, 8 ', 8 ", 9, 9' also horizontally displaceable, in particular axially displaceable, may be formed.
  • rollers 8, 8 ', 8 ", 9, 9' may also be bent by force transmission perpendicular to the casting direction, i.e. bent in their longitudinal direction, so that a variable thickness profile of a metal strip 4 can be produced.
  • the rollers 8, 8 ', 8 ", 9, 9' which can be set in the profile can be set against the metal strip 4 in such a way that a recrystallization process of the partially solidified metal strip 4 or that the metal strip 4 changes its metallurgical structure Rolls 8, 8 ', 8 ", 9, 9' surface ripples on the surface of the metal strip 4 are smoothed. ever according to the shape of the rollers 8, 8 ', 8 ", 9, 9', an optimal profiling or thickness profiling of the metal strip 4 can take place.
  • the processes according to the invention are preferably, but not exclusively, thin strip casting processes for producing a pre-strip, which in particular has a thickness of less than 40 mm.

Description

Gebiet der ErfindungField of the invention

Die Erfindung bewegt sich auf dem Gebiet des horizontalen Bandgießens. Dabei wird eine Schmelze von einem Aufgabegefäß auf ein gekühltes Förderband geleitet, auf dem die Schmelze beginnt zu einem Band zu erstarren.The invention is in the field of horizontal strip casting. In this case, a melt is passed from a task vessel to a cooled conveyor belt on which the melt begins to solidify into a strip.

Stand der TechnikState of the art

Aus dem Stand der Technik sind horizontale Bandgießverfahren und -anlagen bekannt, in denen das Gießprodukt bzw. das bereits erstarrte Metallband weiteren Verarbeitungsschritten, zum Beispiel einem Walzprozess, zugeführt wird. Ein Merkmal des so erzeugten Stahlbandes ist das Profil bzw. Dickenprofil (Bombierung), d. h. der Verlauf der Banddicke über die Bandbreite gesehen. Bei diesem Walzprozess ist das durch den Gießprozess entstandene Vorbandprofil nur eingeschränkt und schwer beeinflussbar. Die Ursache liegt oft in relativ dünnen Bandquerschnitten. In diesem Fall sind Profilgebung und Planheit voneinander abhängig, da der für eine Profiländerung erforderliche Materialquerfluss eingeschränkt ist.Horizontal strip casting processes and installations are known from the prior art in which the cast product or the already solidified metal strip is fed to further processing steps, for example a rolling process. A feature of the steel strip thus produced is the profile or thickness profile (crowning), d. H. the course of the tape thickness over the bandwidth seen. In this rolling process, the Vorbandprofil resulting from the casting process is limited and difficult to influence. The cause is often in relatively thin tape sections. In this case, profile and flatness are interdependent, as the material flow required for a profile change is limited.

Die Veröffentlichung " Endabmessungsnahes Vorbandgießen von Stahl mit dem "Belt-Roll"-Verfahren" von Klaus Schwertfeger et al., Stahl und Eisen, Verlag Stahleisen, Band 111, Nr. 6, 14. Juni 1991, Seiten 37-43, XP000209376, ISSN 0340-4803 offenbart ein Verfahren gemäß dem Oberbegriff des Anspruchs 1.The publication " Close-to-size close precolumn casting of steel with the "Belt-Roll" method "by Klaus Schwertfeger et al., Stahl and Eisen, Verlag Stahleisen, Volume 111, No. 6, 14 June 1991, pages 37-43, XP000209376, ISSN 0340- 4803 discloses a method according to the preamble of claim 1.

Die WO 2006/066552 A1 zeigt eine solche Einrichtung zum horizontalen Bandgießen von Stahl. Dabei wird die Schmelze auf ein Förderband geleitet, das eine Kühlzone bildet. Hinter dieser Kühlzone schließt sich eine zweite Temperierungszone an. Bei Eintritt des Bandes in die zweite Zone ist das Band je nach Temperaturführung bereits durcherstarrt. Hierbei kann es zu einer nach oben gerichteten Krümmung der Kanten kommen, die negative Auswirkungen auf den Gießprozess haben kann. In der Veröffentlichung sind Einrichtungen in Form von zum Beispiel Rollenpaaren genannt, die diesem Effekt entgegenwirken und das Band herunterdrücken. Eine Beeinflussung des Dickenprofils ist hier allerdings nicht vorgesehen. Das Dickenprofil des Vorbandes ergibt sich aus dem Gießprozess und kann in einem nachfolgenden Walzprozess je nach Randbedingung nicht mehr hinreichend beeinflusst werden. Dieses Problem tritt insbesondere, aber nicht ausschließlich, bei Dünnbandgießverfahren auf, bei denen ein Band gegossen wird, dessen Dicke geringer als 40 mm ist. Kritische Dickenprofile können zum Beispiel Profile mit einem Keilanteil oder auch einer Welligkeit mit einem quadratischen oder höheren Anteil sein. Solche kritischen Profile sind dem Fachmann bekannt.The WO 2006/066552 A1 shows such a device for horizontal strip casting of steel. The melt is passed on a conveyor belt, the one Cooling zone forms. Behind this cooling zone is followed by a second tempering zone. When the belt enters the second zone, the belt is already solidified depending on the temperature control. This can lead to an upward curvature of the edges, which can have negative effects on the casting process. The publication mentions devices in the form of, for example, pairs of rollers which counteract this effect and depress the belt. An influence on the thickness profile is not provided here. The thickness profile of the pre-strip results from the casting process and can no longer be adequately influenced in a subsequent rolling process, depending on the boundary condition. This problem is particularly, but not exclusively, encountered in strip casting processes in which a strip is cast whose thickness is less than 40 mm. Critical thickness profiles may be, for example, profiles with a wedge or even a ripple with a square or higher proportion. Such critical profiles are known to the person skilled in the art.

Die Schrift WO 2009/018973 A1 zeigt eine ähnliche Vorrichtung, in der Glätt- bzw. Treibrollen in Gießrichtung hinter einem Förderband sowie über einer Umlenkrolle des Förderbandes angeordnet sind. Die in dieser Schrift offenbarten Rollen ermöglichen ebenfalls keine Beeinflussung des Dickenprofils des Metallbandes. Es ist lediglich möglich ein Aufwölben der Bandkanten zu verhindern, was auch das Ziel der in dieser Schrift offenbarten Rollenanordnung ist. Das Profil bzw. das Dickenprofil, das heißt der Dickenverlauf des Bandes in Richtung der Breite des Bandes, kann nicht nennenswert beeinflusst werden.The font WO 2009/018973 A1 shows a similar device in which smoothing or driving rollers are arranged in the casting behind a conveyor belt and over a deflection roller of the conveyor belt. The roles disclosed in this document also do not allow influencing the thickness profile of the metal strip. It is only possible to prevent buckling of the band edges, which is also the goal of the disclosed in this document roller assembly. The profile or the thickness profile, that is, the thickness profile of the tape in the direction of the width of the tape, can not be significantly influenced.

Generell sollte das Dickenprofil eines Metallbandes möglichst früh beeinflusst werden, insbesondere bei möglichst hohen Temperaturen, d. h. insbesondere bei geringen Festigkeiten des Metallbands, da sich die Bedingungen für einen Materialquerfluss mit Verringerung der Festigkeit, d. h. auch mit steigender Temperatur verbessern. Die Möglichkeit der Verformung des Bandmaterials ist dabei durch die Duktilität des Materials, d. h. durch die Fähigkeit zur Verformung ohne mechanische Schädigung, zum Beispiel Rissbildung, begrenzt, die mit steigender Temperatur abnimmt.In general, the thickness profile of a metal strip should be influenced as early as possible, in particular at the highest possible temperatures, ie in particular at low strengths of the metal strip, since the conditions for a material cross-flow improve with a reduction in strength, ie also with increasing temperature. The possibility of deformation of the strip material is limited by the ductility of the material, ie by the ability to deform without mechanical damage, for example cracking, which decreases with increasing temperature.

Die technische Aufgabe besteht folglich vor allem darin, ein Verfahren bereitzustellen, um das Dickenprofil eines Metallbandes möglichst früh beeinflussen zu können.The technical task is therefore mainly to provide a method to influence the thickness profile of a metal strip as early as possible.

Offenbarung der ErfindungDisclosure of the invention

Die Erfindung ist durch die Merkmale des Verfahrensanspruchs 1 definiert.The invention is defined by the features of method claim 1.

In einer bevorzugten Ausführungsform des Verfahrens wird die Profilgebung im Bereich zwischen den Umlenkrollen oder über einer der Umlenkrollen durchgeführt.In a preferred embodiment of the method, the profiling is carried out in the region between the deflection rollers or over one of the deflection rollers.

In einer weiteren bevorzugten Ausführungsform des Verfahrens umfasst das Verfahren mehrere zur Profilgebung anstellbare Rollen oberhalb und unterhalb des Metallbandes, wobei die Profilgebung durch diese Rollen erfolgt.In a further preferred embodiment of the method, the method comprises a plurality of rolls which can be set for profiling above and below the metal strip, the profiling being effected by these rolls.

In einer weiteren bevorzugten Ausführungsform des Verfahrens bildet das Förderband eine Kühlzone und das Verfahren umfasst weiterhin eine Temperierungszone, die sich in Gießrichtung hinter dem Förderband anschließt, wobei das Metallband in dieser Temperierungszone und / oder in der Kühlzone durch die mindestens eine zur Profilgebung anstellbare Rolle beeinflusst wird.In a further preferred embodiment of the method, the conveyor belt forms a cooling zone and the method further comprises a tempering zone, which adjoins behind the conveyor belt in the casting direction, the metal strip in this tempering zone and / or in the cooling zone being influenced by the at least one roll that can be set for profiling becomes.

In einer weiteren bevorzugten Ausführungsform des Verfahrens umfasst das Verfahren zur Profilgebung anstellbare Rollen mit Ballenkontur und / oder gebogene Rollen und / oder horizontal verschiebbare Rollen, wobei durch eine oder mehrere dieser Rollen das Metallband profilgebend beeinflusst wird.In a further preferred embodiment of the method, the profiling method comprises adjustable rollers with bale contour and / or curved rollers and / or horizontally displaceable rollers, wherein the metal strip is profiled by one or more of these rollers.

In einer weiteren bevorzugten Ausführungsform des Verfahrens umfasst das Verfahren mindestens eine untere, zur Profilgebung anstellbare Rolle, die auf Passlinienhöhe mit dem Metallband angeordnet wird.In a further preferred embodiment of the method, the method comprises at least one lower profiling roll which is arranged at the height of the fitting line with the metal strip.

So können die Rollen mit einer bestimmten Kraft kraft- und / oder positionsgeregelt an das Metallband angestellt werden und eine genaue Profilgebung bzw. Dickenprofilgebung bewirken.Thus, the rollers can be employed with a certain force force and / or position-controlled to the metal strip and cause an accurate profiling or thickness profiling.

In einer weiteren bevorzugten Ausführungsform des Verfahrens, stellt das Verfahren ein Dünnbandgießverfahren zur Erzeugung eines Vorbandes, insbesondere mit einer Dicke von weniger als 40 mm, dar.In a further preferred embodiment of the method, the method represents a thin strip casting method for producing a pre-strip, in particular with a thickness of less than 40 mm.

Gerade bei Dünnbandgießverfahren lässt sich ein Vorbandprofil nach dem Gießprozess schwer beeinflussen. Daher ist das erfindungsgemäße Verfahren insbesondere im Falle des Dünnbandgießens besonders vorteilhaft.Especially in Dünnbandgießverfahren a Vorbandprofil after the casting process can be difficult to influence. Therefore, the method according to the invention is particularly advantageous, in particular in the case of thin strip casting.

In einer weiteren bevorzugten Ausführungsform des Verfahrens verformt die mindestens eine zur Profilgebung anstellbare Rolle das Metallband derart, dass die metallurgische Struktur des Metallbands verändert wird.In a further preferred embodiment of the method, the at least one roller that can be set for profiling deforms the metal strip such that the metallurgical structure of the metal strip is changed.

Das heißt mit anderen Worten, dass z. B. Rekristallisierungsprozesse angestoßen werden.In other words, that means z. B. Recrystallization processes are initiated.

Kurze Beschreibung der FigurenBrief description of the figures

Im Folgenden wird kurz die Figur eines erfindungsgemäßen Ausführungsbeispiels beschrieben. Weitere Details sind der detaillierten Beschreibung der Ausführungsbeispiele zu entnehmen. Es zeigt:

Figur 1:
einen schematischen Querschnitt einer Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens. Dabei wird ein Metallband horizontal gegossen und durch verschiedene Rollen bzw. Walzen profilgebend beeinflusst.
The figure of an embodiment according to the invention will be briefly described below. Further details can be found in the detailed description of the embodiments. It shows:
FIG. 1:
a schematic cross section of an apparatus for performing the method according to the invention. In this case, a metal strip is cast horizontally and profiling influenced by different roles or rollers.

Detaillierte Beschreibung der AusführungsbeispieleDetailed description of the embodiments

In der gemäß Figur 1 dargestellten horizontalen Bandgießanlage 5 wird zunächst die flüssige Schmelze 1 aus einer Gießpfanne/Verteilerrinne 2 in ein Aufgabegefäß 3 geleitet. Von dort aus wird die flüssige Schmelze 1 auf ein Förderband 6 geleitet, welches vorzugsweise gekühlt ist und eine Kühlzone bildet. Das Förderband 6 läuft um die beiden Umlenkrollen 7, 7'. Dabei beginnt die Schmelze 1 auf dem Förderband 6 zu erstarren, wodurch das Metallband 4 gebildet wird. Solche Anordnungen bzw. Prozesse sind dem Fachmann bekannt. Die das Metallband 4 bildende, vorzugsweise teilerstarrte, Schmelze 1 wird erfindungsgemäß durch mindestens eine Rolle 8, 8', 8", 9, 9' profilgebend beeinflusst, das heißt profilgebend verformt. Die Rollen 8, 8', 8", 9, 9' können oberhalb oder unterhalb des Förderbandes 6 an das Metallband 4 profilgebend angestellt sein oder auch in Gießrichtung hinter dem Förderband 6 an das Metallband 4 profilgebend angestellt sein. Die Rolle 8, 8', 8", 9, 9' übt dabei vorzugsweise eine Kraft auf die Oberfläche des Bandes 4 aus. Die Anstellung einer Rolle 8, 8', 8", 9, 9' erfolgt kraft- und / oder positionsgesteuert.In accordance with FIG. 1 1, the liquid melt 1 from a ladle / distributor trough 2 into a feed container 3 directed. From there, the liquid melt 1 is passed onto a conveyor belt 6, which is preferably cooled and forms a cooling zone. The conveyor belt 6 runs around the two deflection rollers 7, 7 '. In this case, the melt 1 begins to solidify on the conveyor belt 6, whereby the metal strip 4 is formed. Such arrangements or processes are known to the person skilled in the art. According to the invention, the melt 1 forming the metal strip 4, preferably partially solidified, is profiled by at least one roll 8, 8 ', 8 ", 9, 9', that is to say it deforms the rolls 8, 8 ', 8", 9, 9 'can be made profiling above or below the conveyor belt 6 to the metal strip 4 or be profiled in the casting behind the conveyor belt 6 to the metal strip 4. The roller 8, 8 ', 8 ", 9, 9' preferably exerts a force on the surface of the belt 4. The adjustment of a roller 8, 8 ', 8", 9, 9' is effected by force and / or position ,

Mit der Profilgebung kann im Übrigen auch eine Dickenabnahme des Metallbandes 4 verbunden sein.Incidentally, a reduction in the thickness of the metal strip 4 can also be associated with the profiling.

Es sei an dieser Stelle noch einmal klargestellt, dass das Profil bzw. das Dickenprofil die Verteilung der Dicke des Metallbandes 4 in Richtung der Breite des Metallbandes 4 darstellt. Die Breitenrichtung des Metallbandes 4 liegt dabei senkrecht zur Gießrichtung. Dieser Begriff Profil oder auch Dickenprofil genannt, entspricht insbesondere nicht dem gelegentlich in einigen anderen Schriften gleichnamig verwendeten Begriff, der bspw. ein insgesamt in Breitenrichtung gebogenes Metallband 4 beschreibt, bei dem jedoch keine Profil- oder Dickenprofiländerung im eigentlichen Sinne vorliegt, wie bspw. die einer Keilform.It should be made clear again here that the profile or the thickness profile represents the distribution of the thickness of the metal strip 4 in the direction of the width of the metal strip 4. The width direction of the metal strip 4 is perpendicular to the casting direction. This term profile or thickness profile mentioned, in particular does not correspond to the term occasionally used in some other fonts the same name, for example, describes a total bent in the width direction metal strip 4, but in which there is no profile or thickness profile change in the true sense, such as the a wedge shape.

Wie in Figur 1 weiterhin ersichtlich ist, können die profilgebenden Rollen 8, 8', 8", 9, 9' insbesondere profilgebende Rollenpaare 8, 9; 8', 9' bilden. Es können wahlweise auch mehrere dieser Rollenpaare 8, 9; 8', 9' auf der Strecke zwischen den beiden Umlenkrollen 7, 7' und / oder auch in Gießrichtung hinter der rechten Umlenkrolle 7' liegend angeordnet werden. Zudem ist es auch möglich, dass eine profilgebende Rolle 8" genau oberhalb einer der Umlenkrollen 7, 7' angeordnet wird, insbesondere, wie in Figur 1 gezeigt, oberhalb der in Gießrichtung letzten (rechten) Umlenkrolle 7'. Vorzugsweise kann der Bereich der Vorrichtung, der sich hinter dem Förderband 6 anschließt als Temperierungszone ausgebildet sein, so dass in diesem Bereich das Metallband 4 entweder geheizt, das heißt zum Beispiel auf einer bestimmten Temperatur gehalten wird, oder auch gekühlt wird, in etwa durch Spritzdüsen. Solche Temperierungszonen bzw. Anordnungen sind aus dem Stand der Technik bekannt. Insbesondere können erfindungsgemäß in diesem Bereich Rollen 8', 9' in Gießrichtung hinter dem Förderband 6 an das Metallband 4 profilgebend angestellt werden, noch bevor das Metallband 4 vollkommen erstarrt ist bzw. noch bei möglichst hohen Temperaturen. Darüber hinaus kann hinter dem Förderband 6 auch eine Anzahl von Führungsrollen angeordnet sein. Solche Anordnungen von Führungsrollen mit anderer Funktion sind ebenfalls aus dem Stand der Technik bekannt.As in FIG. 1 Furthermore, the profiling rollers 8, 8 ', 8 ", 9, 9' can in particular form profiling roller pairs 8, 9, 8 ', 9', optionally also several of these roller pairs 8, 9, 8 ', 9'. In addition, it is also possible for a profiling roll 8 "to be arranged exactly above one of the deflecting rollers 7, 7 ' , in particular, as in FIG. 1 shown, above the last in the casting direction (right) deflection roller 7 '. Preferably, the region of the device which adjoins behind the conveyor belt 6 may be formed as Temperierungszone, so that in this area the metal strip 4 either heated, that is, for example, maintained at a certain temperature, or is also cooled, approximately by spray nozzles , Such tempering zones or arrangements are known from the prior art. In particular, according to the invention, rolls 8 ', 9' can be made profiling in the casting direction behind the conveyor belt 6 against the metal strip 4, even before the metal strip 4 has completely solidified or even at the highest possible temperatures. In addition, behind the conveyor belt 6, a number of guide rollers may be arranged. Such arrangements of guide rollers having a different function are also known from the prior art.

Sämtliche Rollen 9, 9', die sich unterhalb der Metallbandes 4 befinden, können so an das Metallband 4 angestellt werden, dass sie lediglich eine führende Funktion aufweisen, das heißt auf Passlinienhöhe mit dem Metallband 4 liegen. Es ist aber auch möglich, dass die Rollen 9, 9', ebenso wie die Rollen 8, 8', 8" mit einem Anpressdruck bzw. einer Kraft an das Metallband 4 angestellt werden.All rollers 9, 9 ', which are located below the metal strip 4, can be made to the metal strip 4, that they only have a leading function, that is, lie at the height of the passport with the metal strip 4. But it is also possible that the rollers 9, 9 ', as well as the rollers 8, 8', 8 "are made with a contact pressure or a force on the metal strip 4.

Vorzugsweise können einzelne oder sämtliche Rollen 8, 8', 8", 9, 9' eine Ballenkontur aufweisen.Preferably, individual or all rollers 8, 8 ', 8 ", 9, 9' have a bale contour.

Vorzugsweise können die profilgebenden Rollen 8, 8', 8", 9, 9' auch horizontal verschiebbar, insbesondere axial verschiebbar, ausgebildet sein.Preferably, the profiling rollers 8, 8 ', 8 ", 9, 9' also horizontally displaceable, in particular axially displaceable, may be formed.

Darüber hinaus können die Rollen 8, 8', 8", 9, 9' ebenfalls durch Krafteinleitung senkrecht zur Gießrichtung gebogen werden, d. h. in ihrer Längsrichtung gebogen sein, so dass ein variables Dickenprofil eines Metallbandes 4 erzeugt werden kann.Moreover, the rollers 8, 8 ', 8 ", 9, 9' may also be bent by force transmission perpendicular to the casting direction, i.e. bent in their longitudinal direction, so that a variable thickness profile of a metal strip 4 can be produced.

Die profilgebend anstellbaren Rollen 8, 8', 8", 9, 9' können dabei derart an das Metallband 4 angestellt werden, dass ein Rekristallisierungsprozess des teilerstarrten Metallbandes 4 einsetzt bzw. dass das Metallband 4 seine metallurgische Struktur ändert. Zudem können durch die profilgebenden Rollen 8, 8', 8", 9, 9' Oberflächenwelligkeiten an der Oberfläche des Metallbandes 4 geglättet werden. Je nach Form der Rollen 8, 8', 8", 9, 9', kann so eine optimale Profilierung bzw. Dickenprofilierung des Metallbandes 4 erfolgen.In this case, the rollers 8, 8 ', 8 ", 9, 9' which can be set in the profile can be set against the metal strip 4 in such a way that a recrystallization process of the partially solidified metal strip 4 or that the metal strip 4 changes its metallurgical structure Rolls 8, 8 ', 8 ", 9, 9' surface ripples on the surface of the metal strip 4 are smoothed. ever according to the shape of the rollers 8, 8 ', 8 ", 9, 9', an optimal profiling or thickness profiling of the metal strip 4 can take place.

Bei den erfindungsgemäßen Verfahren handelt es sich bevorzugt, aber nicht ausschließlich, um Dünnbandgießverfahren zur Erzeugung eines Vorbandes, welches insbesondere eine Dicke von weniger als 40 mm aufweist.The processes according to the invention are preferably, but not exclusively, thin strip casting processes for producing a pre-strip, which in particular has a thickness of less than 40 mm.

Claims (7)

  1. A method for horizontal casting of a metal strip (4) and influencing the thickness profile of the metal strip (4), by means of a cooled conveyor belt (6), which is arranged behind a delivery vessel (3) in casting direction and extends between two deflecting rollers (7, 7') and on which the metal strip (4) is conveyed, as well as by means of at least one roller (8, 8', 8", 9, 9') adjustable against the metal strip (4) for imparting the thickness profile,
    characterised in that
    the roller (8, 8', 8", 9, 9') for influencing the thickness profile of the metal strip (4) is adjusted against the metal strip (4) and surface undulations with a square or higher component on the surface of the metal strip (4) are smoothed by the roller (8, 8', 8", 9, 9'), the roller (8, 8', 8", 9, 9') is formed to pivotable, wherein the wedge form of the strip is selectively influenced by pivotation of the roller (8, 8', 8", 9, 9'), and
    the roller (8, 8', 8", 9, 9') is adjusted against the metal strip (4) under hydraulic or mechanical force regulation and/or position regulation.
  2. The method according to claim 1, wherein the imparting of the thickness profile is carried out in the region between the deflecting rollers (7, 7') or above one of the deflecting rollers (7, 7').
  3. The method according to claim 1 or 2, wherein the method comprises a plurality of rollers (8, 8', 8", 9, 9'), which are adjustable for imparting the profile thickness, above and below the metal strip (4) and wherein the imparting of the profile thickness is carried out by these rollers.
  4. The method according to any one of claims 1 to 3, wherein the conveyor belt forms a cooling zone and the method comprises at least one temperature control zone which is connected behind the conveyor belt (6) in casting direction and the metal strip is influenced in this temperature control zone and/or in the cooling zone by the at least one roller adjustable for imparting the thickness profile.
  5. The method according to claim 1, wherein the method comprises rollers (8, 8', 8", 9, 9'), which are adjustable for imparting the thickness profile, with roll-body contour and/or curved rollers (8, 8', 8", 9, 9') and/or horizontally displaceable rollers (8, 8', 8", 9, 9'), wherein the metal strip (4) is influenced in profile-imparting manner by one or more of these rollers (8, 8', 8", 9, 9').
  6. The method according to any one of claims 1 to 5, wherein the method comprises at least one lower roller (9, 9') which is adjustable for imparting the thickness profile and which is arranged at pass line height with the metal strip (4).
  7. The method according to any one of claims 1 to 6, wherein the method represents a thin-strip casting method for producing a pre-strip (4), particularly with a thickness of less than 40 millimetres,
    and/or
    the at least one roller (8, 8', 8", 9, 9') adjustable for imparting the thickness profile deforms the metal strip (4) in such a way that the metallurgical structure of the metal strip (4) is changed.
EP10732283.6A 2009-06-27 2010-06-23 Apparatus and method for horizontal casting of a metal strip Active EP2445664B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009030793A DE102009030793A1 (en) 2009-06-27 2009-06-27 Apparatus and method for horizontal casting of a metal strip
PCT/EP2010/003772 WO2010149351A1 (en) 2009-06-27 2010-06-23 Device and method for horizontal casting of a metal band

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EP2445664A1 EP2445664A1 (en) 2012-05-02
EP2445664B1 true EP2445664B1 (en) 2017-11-22

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EP (1) EP2445664B1 (en)
CN (1) CN102470427B (en)
DE (1) DE102009030793A1 (en)
RU (1) RU2496601C2 (en)
UA (1) UA112740C2 (en)
WO (1) WO2010149351A1 (en)

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DE102010063093B4 (en) 2010-12-15 2023-07-06 Sms Group Gmbh Device and method for horizontal casting of metal strips
DE102012102461B4 (en) 2012-03-22 2013-10-10 Vb Autobatterie Gmbh & Co. Kgaa Process for the production of electrodes for lead-acid batteries, electrode and lead-acid battery produced thereafter
CN110052589B (en) * 2019-04-28 2021-11-09 河北恒工精密装备股份有限公司 Isostatic pressing heat preservation furnace and method for horizontal continuous casting of nodular cast iron section
WO2021037182A1 (en) * 2019-08-29 2021-03-04 青岛九环新越新能源科技股份有限公司 Production lines and production methods for continuously casting and rolling metal strap and composite metal strap
CN112439883B (en) * 2019-08-29 2022-04-15 青岛九环新越新能源科技股份有限公司 Method for producing continuous casting rolling metal belt

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US3988098A (en) * 1968-12-30 1976-10-26 Mitsubishi Rayon Co., Ltd. Apparatus for continuously casting a sheet and the like
US4367783A (en) * 1980-10-27 1983-01-11 Hazelett Strip-Casting Corporation Method and apparatus for continuous casting of metal under controlled load conditions
DE3444689A1 (en) * 1984-12-07 1986-01-16 Fried. Krupp Gmbh, 4300 Essen GUIDE DEVICE ON THE CASTING BELTS OF A DOUBLE-STRAND CASTING CHOCOLATE
JPH01313157A (en) 1988-06-10 1989-12-18 Furukawa Electric Co Ltd:The Continuous casting method
US4901785A (en) * 1988-07-25 1990-02-20 Hazelett Strip-Casting Corporation Twin-belt continuous caster with containment and cooling of the exiting cast product for enabling high-speed casting of molten-center product
AT402267B (en) * 1995-04-25 1997-03-25 Voest Alpine Ind Anlagen METHOD FOR PRODUCING A STRAND IN THE FORM OF A METAL STRIP, AND DEVICE FOR CARRYING OUT THE METHOD
DE102004062636B4 (en) 2004-12-21 2007-05-24 Salzgitter Flachstahl Gmbh Device for horizontal strip casting of steel
DE102007057278A1 (en) 2007-08-04 2009-02-05 Sms Demag Ag Method and apparatus for equalizing the heat transfer of a cast product during its reimbursement on the metal conveyor belt of a horizontal strip caster
DE102007056192A1 (en) * 2007-11-21 2009-05-28 Sms Demag Ag Method and device for producing a strip of metal
RU2363649C1 (en) * 2007-12-18 2009-08-10 Государственное образовательное учреждение высшего профессионального образования Марийский государственный технический университет Device for connection of ropes

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RU2012102770A (en) 2013-08-10
US8807201B2 (en) 2014-08-19
RU2496601C2 (en) 2013-10-27
EP2445664A1 (en) 2012-05-02
WO2010149351A1 (en) 2010-12-29
CN102470427B (en) 2015-06-17
UA112740C2 (en) 2016-10-25
US20120132390A1 (en) 2012-05-31
CN102470427A (en) 2012-05-23

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