EP0777757B1 - Inversion casting device with crystallizer - Google Patents

Inversion casting device with crystallizer Download PDF

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Publication number
EP0777757B1
EP0777757B1 EP95921701A EP95921701A EP0777757B1 EP 0777757 B1 EP0777757 B1 EP 0777757B1 EP 95921701 A EP95921701 A EP 95921701A EP 95921701 A EP95921701 A EP 95921701A EP 0777757 B1 EP0777757 B1 EP 0777757B1
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EP
European Patent Office
Prior art keywords
inversion
means according
casting means
vessel
nozzles
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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EP95921701A
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German (de)
French (fr)
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EP0777757A1 (en
Inventor
Fritz-Peter Pleschiutschnigg
Dieter Stalleicken
Lothar Parschat
Ingo Von Hagen
Ulrich Menne
Tarek El Gammal
Peter Lorenz Hamacher
Michael Vonderbank
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Vodafone GmbH
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Mannesmann AG
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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
    • B22D11/14—Plants for continuous casting
    • B22D11/145—Plants for continuous casting for upward casting
    • 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
    • B22D11/008—Continuous casting of metals, i.e. casting in indefinite lengths of clad ingots, i.e. the molten metal being cast against a continuous strip forming part of the cast product

Definitions

  • the invention relates to an inversion casting device with a crystallizer which has a slot-shaped passage arranged in the bottom and provided with a seal for the passage of a carrier tape and which is connected to a melt feed.
  • inversion casting an uncooled, cleaned metal profile with a low heat content is passed through molten metal located in a melting tank. When the metal wire or metal strand comes into contact, the molten metal crystallizes on the relatively cool metal profile. The crystallization thickness depends on the length of the contact time and the temperatures of the metal profile and the metal melt. From US 3466186 an inversion casting device is known in which a wire is drawn through a container filled with melt. The container has a sealable passage in the bottom area.
  • the supply of the melt to the container is provided in the vicinity of the bath level.
  • the wire provided for crystallization is surrounded by a sleeve which has passages in the bottom region of the melt container through which liquid metal is fed to the wire.
  • EP 0 311 602 B1 discloses a method for producing thin metal strands, in which the carrier tape is likewise pulled upwards through the liquid melt through the bottom of a melting container in a vertical direction. In both writings, the wire or ribbon is passed through the resting bath of the molten metal. When the carrier element comes into contact with the melt, an irregular flow profile is formed which cannot be influenced from the outside. Depending on this unfavorable flow profile, there is an uneven temperature distribution, especially when inversion casting strips.
  • the invention has set itself the goal of creating a crystallization device for dimensionally accurate strips in which the relative speed of the strand and the molten steel near the strand is small in order to achieve a constant growth rate of the metal and in which the molten steel in the crystallizer has a uniform temperature distribution.
  • the invention achieves this aim by the characterizing features of claim 1.
  • Advantageous further developments are shown in the subclaims.
  • the inversion casting device according to the invention has a crystallizer in which a template is provided which extends horizontally into the vessel near the bottom. Nozzles lead from the template to the interior of the vessel. The nozzle orifices are arranged so that the outflowing melt strikes the carrier tape at a flat angle in the tape take-off direction.
  • the liquid metal flowing out of the nozzles forms a speed profile which can be set so that the liquid has the same speed as the carrier tape. Downstream, the bath movement in the vicinity of the carrier tape is no longer moved by the metal flowing out of the nozzles, but by the carrier tape itself.
  • the liquid metal moving at the same speed as the carrier tape has the possibility of crystallizing at a relative speed of close to 0. Through the targeted feeding of the molten metal through nozzles, a uniform temperature distribution of the melt is achieved. This safe temperature control prevents damage, in particular melting of the carrier tape.
  • the avoidance of a relative speed kit and the even distribution of the temperature lead to a constant increase in the thickness of the carrier tape over its width.
  • the proposed crystallizer has geometrically simple shapes and is low-wear due to its shape adapted to the flow conditions of the liquid metal.
  • the nozzles are slit-shaped or tubular and are guided so that the angle of inclination between them and the carrier tape is less than 30 °.
  • the choice of the angle of inclination and the proposed shapes result in a stable refractory structure which has sufficient passage space so that there is no obstruction to the metal flow.
  • a thickness / length ratio of 1/10 to 1/30 is proposed for the slot-shaped nozzles, and a diameter of 20 to 40 mm for the tubular nozzles. Both nozzle shapes make it possible to generate a homogeneous flow profile of the melt on the carrier belt.
  • the template is in the form of a sleeve which is separated from the carrier tape by a shield. Crossovers are provided in the foot area as well as in the head area.
  • the arrangement of the shields enables particularly precise guidance of the melt through the channel formed between the carrier tape and the shield.
  • the transition in the head area of the shields gives the metal the opportunity to overflow and mix with the newly added metal.
  • both the temperature and the quality of the liquid metal are set in a special way.
  • By arranging elements for setting the temperature in the shields it is possible to drive exactly a predetermined and desired temperature. It is also proposed to use electrically powered coils in the outer walls of the crystallizer vessel to increase the flow rate. Constant conditions are also achieved through the use of a mold level control. This can be achieved in a simple manner by supplying mixed melt from the pan via a filler neck for introducing the crystallizer.
  • the interior of the vessel is adapted to the flow conditions, in such a way that, in particular, the shields are at a greater distance in the area of the shield heads in the pull-off direction of the carrier tape.
  • the carrier tape is so far from the outer walls or shields that the flow of the melt is not hindered. The distance here is around 20 to 80 mm depending on the belt size and speed.
  • the crystallizer is constructed so that the individual Vessel parts consist of components that are prefabricated and on site easy to change. Because the template is the parts with the highest Have susceptibility to wear, especially above Horizontal blanket cut provided. The single ones Components can be attached to the metal jacket of the vessel Loosen the provided clamping devices and close them tightly again connect.
  • FIG. 1 shows a vessel 11 through which a carrier tape T, which on Vessel bottom enters, is guided.
  • the carrier tape T is on a arranged under the vessel 11 tape roll 62 which on a Stand 61 is mounted, and is by a above the vessel 11th provided take-off roller 63 promoted.
  • the vessel 11 is in its lower region from a template 21 surround which melt feed side a filler neck 27 and has an emergency stopper 54 on the melt discharge side.
  • a feed pan 51 Above the Filler neck 27, a feed pan 51 is positioned, the one Immersed tube 52, which in the mouth of the filler neck 27th In the area of the vessel 11, the template 21 points in the Figure shows sketchy slot-shaped nozzles 24.
  • the Melt is marked with S.
  • FIG. 2 a longitudinal section through the vessel 11 is shown, through which a carrier tape T is guided through a melt S.
  • the vessel 11 has a jacket 15 which is provided with a refractory lining 16.
  • the vessel 11 has separating cuts 41. On the outside of the vessel 41 clamping elements 42 are provided in the region of the separating cuts, which join the individual vessel parts 19 together.
  • a passage 13 is provided in the vessel bottom 12, which provides a seal 14 has.
  • the lower part of the vessel 11 is designed as a template 21 which has nozzles 23, the mouth 26 of which is connected to the interior 17 of the vessel.
  • the nozzles 23 are designed as slot-shaped nozzles 24 and on the left side as tubular nozzles 25.
  • the angle of inclination of the nozzles 23 is ⁇ 30 °.
  • the section BB is laid through the template 21, which is shown in the lower part of FIG. 2 as a top view. From the filler neck, not shown here, melt flows into the annular template 21, via which the melt can reach the carrier tape T located in the center of the vessel 11. In emergencies, the melt located in the vessel and in the filler neck can be drained off via an only indicated outlet.
  • the template 21 provided in the refractory lining 16, which is enveloped by a metallic jacket 15, is designed in a ring shape.
  • the nozzle 23 is designed as a slot-shaped nozzle 24.
  • the nozzle 24 can be interrupted by support walls 28.
  • the nozzle 23 is formed by tubular nozzles 25.
  • the individual tubular nozzles 25 are connected to a template guided parallel to the interior 17 of the vessel, and a central template is provided in the lower area.
  • the arrows shown in the top view show the direction of flow of the liquid metal.
  • the dash-dotted arrows apply in the event that an emergency pan is connected and the crystallizer is to be emptied.
  • the crystallizer can be filled with melt from one side or from two sides.
  • FIG. 3 shows a vessel 11 with a refractory lining 16 which is enveloped by a jacket 15.
  • Shields 31 are located in the interior 17 of the vessel intended. which are arranged so that a sleeve-shaped template 22nd is present.
  • the shields 31 have a size that with Melt S filled vessel overflow this at an overflow 32 can.
  • the shield 31 On the left side of the picture, the shield 31 has a conically tapering cross section, so that the melt flowing with the carrier tape 15 is not hindered. Furthermore, elements 33 for regulating the temperature are provided in the shields 31, so here, for example, cooling tube coils arranged in a meandering manner can be introduced, through which a cooling or heating medium can be guided.
  • the refractory lining 16 is parallel to the shields 31 coils 34 are provided, through which the flow of Melt S can be influenced.
  • the passage 13 is provided in the vessel bottom 12 and prevents the melt S from escaping from the vessel 11 by means of a seal 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Saccharide Compounds (AREA)
  • Confectionery (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • External Artificial Organs (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PCT No. PCT/DE95/00786 Sec. 371 Date May 22, 1997 Sec. 102(e) Date May 22, 1997 PCT Filed Jun. 15, 1995 PCT Pub. No. WO96/02683 PCT Pub. Date Feb. 1, 1996An inversion casting device with a crystallizer which has a slit-shaped passage for guiding a substrate strip, this passage being arranged in the base and provided with a seal, and which communicates with a melt feed. A collecting tank is provided which passes horizontally about the crystallizer vessel so that the collecting tank communicates with nozzles (23) arranged in the region of the passage. The nozzle orifices are so arranged that the melt flowing out strikes the substrate strip at a flat angle of inclination alpha in the strip take-off direction.

Description

Die Erfindung betrifft eine Inversionsgießeinrichtung mit Kristallisator der einen im Boden angeordneten und mit einer Abdichtung versehenen schlitzförmigen Durchtritt zur Durchleitung eines Trägerbandes aufweist und der mit einer Schmelzenzuführung in Verbindung steht.
Beim Inversionsgießen wird ein ungekühltes, gereinigtes Metallprofil niedrigen Wärmeinhaltes durch in einem Schmelzbehälter befindliche Metallschmelze geführt. Bei dem Kontakt des Metalldrahtes oder Metallstranges kristallisiert die Metallschmelze an dem relativ kühlen Metallprofil an. Die Ankristallisationsdicke ist abhängig von der Länge der Kontaktzeit sowie den Temperaturen des Metallprofils und der Metallschmelze.
Aus der Schrift US 3466186 ist eine Inversionsgießeinrichtung bekannt, bei der ein Draht durch einen mit Schmelze gefüllten Behälter hindurchgezogen wird. Der Behälter besitzt im Bodenbereich einen abdichtbaren Durchtritt. Die Zufuhr der Schmelze zum Behälter ist in der Nähe des Badspiegels vorgesehen. In einer besonderen ausführungsform wird der zum Ankristallisieren vorgesehene Draht von einer Hülse umgeben, die im Bodenbereich des Schmelzenbehälters Durchtritte aufweist, durch die Flüssigmetall dem Draht zugeführt wird. Weiterhin ist aus der EP 0 311 602 B1 ein Verfahren zum Erzeugen von dünnen Metallsträngen bekannt, bei dem ebenfalls durch den Boden eines Schmelzbehälters das Trägerband in vertikaler Richtung nach oben durch die Flüssigschmelze gezogen wird.
In beiden Schriften wird der Draht oder das Band durch das ruhende Bad der Metallschmelze geführt. Bei dem Kontakt des Trägerelementes und der Schmelze bildet sich ein unregelmaßiges und von außen nicht beeinflußbares Strömungsprofil aus. In Abhängigkeit dieses ungünstigen Strömungsprofils kommt es zu einer ungleichmäßigen Temperaturverteilung, insbesondere beim Inversionsgießen von Bändern.The invention relates to an inversion casting device with a crystallizer which has a slot-shaped passage arranged in the bottom and provided with a seal for the passage of a carrier tape and which is connected to a melt feed.
In inversion casting, an uncooled, cleaned metal profile with a low heat content is passed through molten metal located in a melting tank. When the metal wire or metal strand comes into contact, the molten metal crystallizes on the relatively cool metal profile. The crystallization thickness depends on the length of the contact time and the temperatures of the metal profile and the metal melt.
From US 3466186 an inversion casting device is known in which a wire is drawn through a container filled with melt. The container has a sealable passage in the bottom area. The supply of the melt to the container is provided in the vicinity of the bath level. In a special embodiment, the wire provided for crystallization is surrounded by a sleeve which has passages in the bottom region of the melt container through which liquid metal is fed to the wire. Furthermore, EP 0 311 602 B1 discloses a method for producing thin metal strands, in which the carrier tape is likewise pulled upwards through the liquid melt through the bottom of a melting container in a vertical direction.
In both writings, the wire or ribbon is passed through the resting bath of the molten metal. When the carrier element comes into contact with the melt, an irregular flow profile is formed which cannot be influenced from the outside. Depending on this unfavorable flow profile, there is an uneven temperature distribution, especially when inversion casting strips.

Die Erfindung hat sich das Ziel gesetzt, eine Kristallisationseinrichtung für maßgenaue Bänder zu schaffen, bei der zur Erreichung einer konstanten Anwachsrate des Metalles die Relativgeschwindigkeit des Stranges und des Flüssigstahls in Strangnähe klein ist und bei der der im Kristallisator befindliche Flüssigstahl eine gleichmäßige Temperaturverteilung aufweist.
Die Erfindung erreicht dieses Ziel durch die kennzeichnenden Merkmale des Anspruchs 1. In den Unteransprüchen sind vorteilhafte Weiterbildungen aufgezeigt.
Die erfindungsgemäße Inversionsgießeinrichtung weist einen Kristallisator auf, bei dem eine in das Gefäß in Bodennähe horizontal umgreifende Vorlage vorgesehen ist. Von der Vorlage führen Düsen zum Gefäßinnenraum. Die Düsenmündungen sind dabei so angeordnet, daß die ausströmende Schmelze in einem flachen Winkel in Bandabzugsrichtung auf das Trägerband auftrifft. Durch das aus den Düsen strömende Flüssigmetall bildet sich ein Geschwindigkeitsprofil, das so eingestellt werden kann, daß die Flüssigkeit die gleiche Geschwindigkeit wie das Trägerband aufweist. Stromabwärts wird die Badbewegung in Nähe des Trägerbandes nicht mehr durch das aus den Düsen ausströmende Metall, sondern durch das Trägerband selber bewegt.
Das mit gleicher Geschwindigkeit wie das Trägerband sich bewegende Flüssigmetall hat die Möglichkeit, bei einer Relativgeschwindigkeit von nahe zu 0 an zu kristallisieren.
Durch das gezielte Zuführen der Metallschmelze über Düsen wird eine gleichmäßige Temperaturverteilung der Schmelze erreicht. Durch diese sichere Temperaturführung werden Beschädigungen, insbesondere ein Aufschmelzen des Trägerbandes vermieden.
Das Vermeiden einer Relativgeschwindigkit und das gleichmäßige Verteilen der Temperatur führen zu einem konstanten Anwachsen der Dicke des Trägerbandes über seine Breite.
Der vorgeschlagene Kristallisator weist geometrisch einfache Formen auf und ist durch seine den Strömungsverhältnissen des Flüssigmetalls angepaßte Form verschleißarm.The invention has set itself the goal of creating a crystallization device for dimensionally accurate strips in which the relative speed of the strand and the molten steel near the strand is small in order to achieve a constant growth rate of the metal and in which the molten steel in the crystallizer has a uniform temperature distribution.
The invention achieves this aim by the characterizing features of claim 1. Advantageous further developments are shown in the subclaims.
The inversion casting device according to the invention has a crystallizer in which a template is provided which extends horizontally into the vessel near the bottom. Nozzles lead from the template to the interior of the vessel. The nozzle orifices are arranged so that the outflowing melt strikes the carrier tape at a flat angle in the tape take-off direction. The liquid metal flowing out of the nozzles forms a speed profile which can be set so that the liquid has the same speed as the carrier tape. Downstream, the bath movement in the vicinity of the carrier tape is no longer moved by the metal flowing out of the nozzles, but by the carrier tape itself.
The liquid metal moving at the same speed as the carrier tape has the possibility of crystallizing at a relative speed of close to 0.
Through the targeted feeding of the molten metal through nozzles, a uniform temperature distribution of the melt is achieved. This safe temperature control prevents damage, in particular melting of the carrier tape.
The avoidance of a relative speed kit and the even distribution of the temperature lead to a constant increase in the thickness of the carrier tape over its width.
The proposed crystallizer has geometrically simple shapes and is low-wear due to its shape adapted to the flow conditions of the liquid metal.

Die Düsen sind schlitzförmig oder rohrförmig ausgebildet und so geführt, daß der Neigungswinkel zwischen ihnen und dem Trägerband kleiner 30° beträgt. Die Wahl des Neigungswinkels und die vorgeschlagenen Formen lassen ein stabiles Feuerfestgebilde entstehen, das ausreichend Durchtrittsraum besitzt, so daß keine Behinderung des Metallstromes eintritt.
Bei den schlitzförmigen Düsen wird ein Dicken-/Längenverhältnis von 1/10 bis 1/30, bei den rohrförmigen Düsen ein Durchmesser von 20 bis 40 mm vorgeschlagen. Beide Düsenformen ermöglichen es, ein homogenes Strömungsprofil der Schmelze auf dem Trägerband zu erzeugen.
In einer vorteilhaften Weiterbildung ist die Vorlage in Form einer Hülse ausgebildet, die durch ein Schild vom Trägerband getrennt ist. Im Fußbereich wie auch im Kopfbereich sind Übertritte vorgesehen. Durch die Anordnung der Schilde ist durch den zwischen dem Trägerband und dem Schild entstehenden Kanal eine besonders exakte Führung der Schmelze möglich. Durch den Übertritt im Kopfbereich der Schilde hat das Metall die Möglichkeit, überzuströmen und mit dem neu zugeführten Metall sich zu vermischen. Hierdurch wird in besonderer Weise sowohl die Temperatur wie auch die Qualität des Flüssigmetalls eingestellt.
Durch Anordnung von Elementen zur Einstellung der Temperatur in den Schilden ist es möglich, exakt eine vorgebbare und gewünschte Temperatur zu fahren.
Weiterhin wird vorgeschlagen, in den Außenwänden des Kristallisatorgefäßes zur Erhöhung der Stromungsgeschwindigkeit elektrisch gespeiste Spulen einzusetzen.
Konstante Verhältnisse werden darüber hinaus noch erreicht durch den Einsatz einer Gießspiegelregelung. In einfacher Weise läßt sich dies erreichen durch Mischschmelzenzufuhr von der Pfanne über einen Einfüllstutzen zur Vorlage des Kristallisators. Durch die Anordnung des Zufuhrtrichters und dem Gefäßinnenraum in Form der kommunizierenden Röhren wird mit einfachen Mitteln erreicht, von außen auf den Gießspiegel Einfluß zu nehmen.
In einer vorteilhaften Ausgestaltung wird der Gefäßinnenraum den Strömungsverhältnissen angepaßt, und zwar in der Weise, daß insbesondere die Schilde in Abzugsrichtung des Trägerbandes im Bereich der Schildköpfe einen größeren Abstand aufweisen. Insgesamt ist das Trägerband dabei von den Außenwandungen bzw. Schilden soweit beabstandet, daß die Strömung der Schmelze nicht behindert wird. Der Abstand beträgt hier in Abhängigkeit von Bandgröße und -geschwindigkeit etwa 20 bis 80 mm. The nozzles are slit-shaped or tubular and are guided so that the angle of inclination between them and the carrier tape is less than 30 °. The choice of the angle of inclination and the proposed shapes result in a stable refractory structure which has sufficient passage space so that there is no obstruction to the metal flow.
A thickness / length ratio of 1/10 to 1/30 is proposed for the slot-shaped nozzles, and a diameter of 20 to 40 mm for the tubular nozzles. Both nozzle shapes make it possible to generate a homogeneous flow profile of the melt on the carrier belt.
In an advantageous development, the template is in the form of a sleeve which is separated from the carrier tape by a shield. Crossovers are provided in the foot area as well as in the head area. The arrangement of the shields enables particularly precise guidance of the melt through the channel formed between the carrier tape and the shield. The transition in the head area of the shields gives the metal the opportunity to overflow and mix with the newly added metal. As a result, both the temperature and the quality of the liquid metal are set in a special way.
By arranging elements for setting the temperature in the shields, it is possible to drive exactly a predetermined and desired temperature.
It is also proposed to use electrically powered coils in the outer walls of the crystallizer vessel to increase the flow rate.
Constant conditions are also achieved through the use of a mold level control. This can be achieved in a simple manner by supplying mixed melt from the pan via a filler neck for introducing the crystallizer. By arranging the feed hopper and the interior of the vessel in the form of the communicating tubes, simple means are used to influence the mold level from the outside.
In an advantageous embodiment, the interior of the vessel is adapted to the flow conditions, in such a way that, in particular, the shields are at a greater distance in the area of the shield heads in the pull-off direction of the carrier tape. Overall, the carrier tape is so far from the outer walls or shields that the flow of the melt is not hindered. The distance here is around 20 to 80 mm depending on the belt size and speed.

Das Kristallisatorgefäß ist dabei so aufgebaut, daß die einzelnen Gefäßteile aus Bauteilen besteht, die sich vorfertigen und vor Ort leicht wechseln lassen. Da die Vorlage die Teile mit der höchsten Verschleißanfälligkeit besitzen, ist insbesondere oberhalb der Vorlagendecke ein horizontaler Trennschnitt vorgesehen. Die einzelnen Bauteile lassen sich durch am metallischen Mantel des Gefäßes vorgesehenen Klemmeinrichtungen lösen und dichtschließend wieder verbinden.The crystallizer is constructed so that the individual Vessel parts consist of components that are prefabricated and on site easy to change. Because the template is the parts with the highest Have susceptibility to wear, especially above Horizontal blanket cut provided. The single ones Components can be attached to the metal jacket of the vessel Loosen the provided clamping devices and close them tightly again connect.

Ein Beispiel der Erfindung ist in der beigefügten Zeichnung dargelegt. Dabei zeigen die

  • Figur 1 das Schema einer Inversionsgießeinrichtung,
  • Figur 2 Längs- und Querschnitt durch einen Kristallisator,
  • Figur 3 Längsschnitt durch einen Kristallisator mit Schilden.
    • An example of the invention is set out in the accompanying drawing. The show
  • FIG. 1 shows the diagram of an inversion casting device,
  • FIG. 2 longitudinal and cross section through a crystallizer,
  • Figure 3 longitudinal section through a crystallizer with shields.

    • Die Figur 1 zeigt ein Gefäß 11, durch das ein Trägerband T, welches am Gefäßboden eintritt, geführt wird. Das Trägerband T befindet sich auf einer unter dem Gefäß 11 angeordneten Bandrolle 62, die auf einem Ständer 61 gelagert ist, und wird durch eine oberhalb des Gefäßes 11 vorgesehenen Abzugsrolle 63 gefördert.Figure 1 shows a vessel 11 through which a carrier tape T, which on Vessel bottom enters, is guided. The carrier tape T is on a arranged under the vessel 11 tape roll 62 which on a Stand 61 is mounted, and is by a above the vessel 11th provided take-off roller 63 promoted.

    Das Gefäß 11 ist in seinem unteren Bereich von einer Vorlage 21 umgeben, welche schmelzenzuführseitig einen Einfüllstutzen 27 und schmelzenabfuhrseitig einen Notstopfen 54 aufweist. Oberhalb des Einfüllstutzen 27 ist eine Zufuhrpfanne 51 positionierbar, die ein Tauchrohr 52 aufweist, das in die Mündung des Einfüllstutzens 27 eintauchbar ist.Im Bereich des Gefäßes 11 weist die Vorlage 21 in der Figur skizzenhaft dargestellte schlitzförmige Düsen 24 auf. Die Schmelze ist mit S bezeichnet. The vessel 11 is in its lower region from a template 21 surround which melt feed side a filler neck 27 and has an emergency stopper 54 on the melt discharge side. Above the Filler neck 27, a feed pan 51 is positioned, the one Immersed tube 52, which in the mouth of the filler neck 27th In the area of the vessel 11, the template 21 points in the Figure shows sketchy slot-shaped nozzles 24. The Melt is marked with S.

    In der Figur 2 im oberen Teil ist ein Längsschnitt durch das Gefäß 11 dargestellt, durch das ein Trägerband T durch eine Schmelze S geführt wird. Das Gefäß 11 besitzt einen Mantel 15, der mit einer Feuerfestauskleidung 16 versehen ist.
    Das Gefäß 11 weist dabei Trennschnitte 41 auf. An der Außenseite des Gefäßes sind im Bereich der Trennschnitte 41 Klemmelemente 42 vorgesehen, die die einzelnen Gefäßteile 19 aneinanderfügen.    In the upper part of FIG. 2, a longitudinal section through the vessel 11 is shown, through which a carrier tape T is guided through a melt S. The vessel 11 has a jacket 15 which is provided with a refractory lining 16.
    The vessel 11 has separating cuts 41. On the outside of the vessel 41 clamping elements 42 are provided in the region of the separating cuts, which join the individual vessel parts 19 together.

    Im Gefäßboden 12 ist ein Durchtritt 13 vorgesehen, der eine Abdichtung 14 aufweist.A passage 13 is provided in the vessel bottom 12, which provides a seal 14 has.

    Der untere Teil des Gefäßes 11 ist als Vorlage 21 ausgebildet, die Düsen 23 aufweist, deren Mündung 26 mit dem Gefäßinnenraum 17 in Verbindung steht. Auf der rechten Seite des Längsschnitts sind die Düsen 23 als schlitzförmige Düsen 24 und auf der linken Seite als rohrförmige Düsen 25 aufgestaltet. Der Neigungswinkel der Düsen 23 ist <30 °.
    Durch die Vorlage 21 ist der Schnitt BB gelegt, der im unteren Teil der Figur 2 als Draufsicht dargestellt ist.
    Vom hier nicht weiter dargestellten Einfüllstutzen strömt Schmelze in die ringförmige Vorlage 21, über die Schmelze zum im Zentrum des Gefäßes 11 sich befindenen Trägerbandes T gelangen kann. In Notfällen kann die sich im Gefäß und im Einfüllstutzen befindliche Schmelze über einen nur angedeuteten Auslaß abgelassen werden.
    Die in der Feuerfestauskleidung 16, welche von einem metallischen Mantel 15 umhüllt ist, vorgesehene Vorlage 21 ist ringförmig ausgestaltet. Auf der rechten Seite der Draufsicht ist die Düse 23 als schlitzförmige Düse 24 ausgebildet. Aus stabilitätsgründen kann die Düse 24 durch Stützwände 28 unterbrochen sein.
    Auf der linken Seite der Draufsicht wird die Düse 23 durch rohrförmige Düsen 25 gebildet. Im oberen Teil der linken Seite sind die einzelnen rohrförmigen Düsen 25 an eine parallel zum Gefäßinnenraum 17 geführten Vorlage verbunden, im unteren Bereich ist eine zentrale Vorlage vorgesehen. Die in der Draufsicht dargestellten Pfeile zeigen die Strömungsrichtung des flüssigen Metalls. Die strichpunktierten Pfeile gelten für den Fall, daß eine Notpfanne angeschlossen ist und der Kristallisator entleert werden soll.
    Der Kristallisator kann von einer Seite oder aber auch von zwei Seiten mit Schmelze gefüllt werden.    The lower part of the vessel 11 is designed as a template 21 which has nozzles 23, the mouth 26 of which is connected to the interior 17 of the vessel. On the right side of the longitudinal section, the nozzles 23 are designed as slot-shaped nozzles 24 and on the left side as tubular nozzles 25. The angle of inclination of the nozzles 23 is <30 °.
    The section BB is laid through the template 21, which is shown in the lower part of FIG. 2 as a top view.
    From the filler neck, not shown here, melt flows into the annular template 21, via which the melt can reach the carrier tape T located in the center of the vessel 11. In emergencies, the melt located in the vessel and in the filler neck can be drained off via an only indicated outlet.
    The template 21 provided in the refractory lining 16, which is enveloped by a metallic jacket 15, is designed in a ring shape. On the right side of the top view, the nozzle 23 is designed as a slot-shaped nozzle 24. For reasons of stability, the nozzle 24 can be interrupted by support walls 28.
    On the left side of the top view, the nozzle 23 is formed by tubular nozzles 25. In the upper part of the left side, the individual tubular nozzles 25 are connected to a template guided parallel to the interior 17 of the vessel, and a central template is provided in the lower area. The arrows shown in the top view show the direction of flow of the liquid metal. The dash-dotted arrows apply in the event that an emergency pan is connected and the crystallizer is to be emptied.
    The crystallizer can be filled with melt from one side or from two sides.

    Die Figur 3 zeigt ein Gefäß 11 mit einer Feuerfestauskleidung 16, die von einem Mantel 15 umhüllt ist. Im Gefäßinnenraum 17 sind Schilde 31 vorgesehen. die so angeordnet sind, daß eine hülsenförmige Vorlage 22 vorliegt. Die Schilde 31 weisen dabei eine Größe auf, daß bei mit Schmelze S gefülltem Gefäß diese bei einem Überlauf 32 überströmen kann.FIG. 3 shows a vessel 11 with a refractory lining 16 which is enveloped by a jacket 15. Shields 31 are located in the interior 17 of the vessel intended. which are arranged so that a sleeve-shaped template 22nd is present. The shields 31 have a size that with Melt S filled vessel overflow this at an overflow 32 can.

    Auf der linken Seite des Bildes weist der Schild 31 einen sich konisch verjüngenden Querschnitt auf, so daß die mit dem Trägerband 15 strömende Schmelze keine Behinderung erfährt.
    Weiterhin sind in den Schilden 31 Elemente 33 zur Regelung der Temperatur vorgesehen, so können hier beispielsweise meanderförmig angeordnete Kühlrohrschlangen eingebracht werden, durch die ein Kühl- oder Heizmittel führbar ist.    On the left side of the picture, the shield 31 has a conically tapering cross section, so that the melt flowing with the carrier tape 15 is not hindered.
    Furthermore, elements 33 for regulating the temperature are provided in the shields 31, so here, for example, cooling tube coils arranged in a meandering manner can be introduced, through which a cooling or heating medium can be guided.

    In der vorliegenden Figur 3 sind in der Feuerfestauskleidung 16 parallel zu den Schilden 31 Spulen 34 vorgesehen, durch die auf die Strömung der Schmelze S Einfluß genommen werden kann.In the present FIG. 3, the refractory lining 16 is parallel to the shields 31 coils 34 are provided, through which the flow of Melt S can be influenced.

    Weiterhin zeigt die Figur 3 den Neigungswinkel der Düsen 23, die einen Durchmesser D besitzen. Die Dicke des Trägerbandes T ist mit d bezeichnet. Der Abstand des Trägerbandes zu den einzelnen Schilden 31 ist mit B bezeichnet.
    Im Gefäßboden 12 ist der Durchtritt 13 vorgesehen, der durch eine Abdichtung 14 ein Auslaufen der Schmelze S aus dem Gefäß 11 verhindert.     3 shows the angle of inclination of the nozzles 23, which have a diameter D. The thickness of the carrier tape T is denoted by d. The distance between the carrier tape and the individual shields 31 is denoted by B.
    The passage 13 is provided in the vessel bottom 12 and prevents the melt S from escaping from the vessel 11 by means of a seal 14.

    PositionsziffernItem digits

    11.11.
    Gefäßvessel
    1212th
    GefäßbodenVessel bottom
    1313
    DurchtrittPassage
    1414
    Abdichtungseal
    1515
    Mantelcoat
    1616
    FeuerfestauskleidungRefractory lining
    1717th
    GefäßinnenraumVessel interior
    1919th
    Gefäßteil
    Schmelzenführung    Vessel part
    Melt guide
    2121
    Vorlage (ringförmig)Template (ring-shaped)
    2222
    Vorlage (hülsenförmig)Template (sleeve-shaped)
    2323
    DüsenNozzles
    2424th
    schlitzförmige Düseslit-shaped nozzle
    2525th
    rohrförmige Düsetubular nozzle
    2626
    Mündungmuzzle
    2727
    EinfüllstutzenFiller neck
    2828
    StützwandRetaining wall
    2929
    Vorlagendecke
    Strömungskörper    Template ceiling
    Flow body
    3131
    Schildsign
    3232
    ÜberlaufOverflow
    3333
    Elemente zur Regelung der TemperaturElements for regulating the temperature
    3434
    Spulen
    Baukasten    Do the washing up
    Construction kit
    4141
    Trennschnitt Separating cut
    4242
    Klemmelement
    Pfanne    Clamping element
    pan
    5151
    ZufuhrpfanneFeed pan
    5252
    TauchrohrDip tube
    5353
    NotpfanneEmergency pan
    5454
    Notstopfen
    Trägerbandführung    Emergency stopper
    Carrier tape guide
    6161
    StänderStand
    6262
    BandrolleTape roll
    6363
    AbzugsrolleTake-off roll
    TT
    TrägerbandCarrier tape
    SS
    Schmelzemelt
    αα
    NeigungswinkelAngle of inclination
    DD
    DurchmesserdüseDiameter nozzle
    dd
    Dicke TrägerbandThick carrier tape
    BB
    Abstand Schild/TrägerbandDistance shield / carrier tape

    Claims (18)

    1. An inversion-casting means with a crystalliser, which has a slot-shaped passage arranged in the base and provided with a sealing means for a support strip to pass through, and which is connected to a melt guide means,
      characterised in that
      a recipient (21) horizontally surrounding the crystalliser vessel (11) is provided,
      the recipient (21) is connected to nozzles (23) arranged in the region of the passage (13), and the nozzle openings (26) are arranged such that the emerging melt (5) meets the support strip (T) at a low angle of inclination α in the strip takeoff direction.
    2. An inversion-casting means according to Claim 1, characterised in that the angle of inclination α between the nozzle (23) and the support strip (T) is less than 30°.
    3. An inversion-casting means according to Claim 2, characterised in that the nozzles (23) are slot-shaped (24) and have a thickness (D) of less than three times the exit thickness (d) of the support strip (T) and a thickness-to-length ratio of 1/10 to 1/30.
    4. An inversion-casting means according to Claim 3, characterised in that a plurality of slot-shaped nozzles (24) are provided across the width of the strip, which are separated by supporting walls (28).
    5. An inversion-casting means according to Claim 1, characterised in that the nozzles (23) are tubular (25) and have a diameter (D) of between 20 and 40 mm.
    6. An inversion-casting means according to Claims 3 or 4, characterised in that the nozzles (23) are connected for flow purposes directly to the recipient (21), which bears a filling connector (27).
    7. An inversion-casting means according to Claim 6, characterised in that the recipient (21) is in the form of a sleeve (22) which is separated from the interior of the vessel (17) by a shield (31) which bears the nozzles (23).
    8. An inversion-casting means according to Claim 7, characterised in that the shield (31) has at its top end overflows (32) which are connected to the recipient (22).
    9. An inversion-casting means according to Claim 8, characterised in that the shields (31) have elements (33) for adjusting the temperature.
    10. An inversion-casting means according to Claim 8, characterised in that the outer walls (18) of the vessel (1) have coils (34) supplied with electricity to increase the flow rate of the metal melt (5).
    11. An inversion-casting means according to Claim 8, characterised in that the shields (31) open, inclined towards the interior of the vessel (17), in the takeoff direction of the support strip (T).
    12. An inversion-casting means according to one of the above claims, characterised in that at least one horizontal separating cut (41) is provided above the cover (29) of the recipient.
    13. An inversion-casting means according to Claim 12, characterised in that detachable clamping elements (42) are provided on the vessel casing (15) for the liquid-tight sealing of the separating cut (41).
    14. An inversion-casting means according to Claim 13, characterised in that the vessel parts (19) present in detachable form due to the clamping elements (42) are prefabricated casing parts (15) provided with refractory material.
    15. An inversion-casting means according to Claim 7, characterised in that the shields (31) are arranged, extending parallel to the support strip, at a distance (B) which does not hinder the flow of the melt (S).
    16. An inversion-casting means according to Claim 14, characterised in that the distance (B) is between 20 and 80 mm.
    17. An inversion-casting means according to Claim 8, characterised in that the recipient (21) has an emergency plug (52) with which an emergency ladle (53) can be connected.
    18. An inversion-casting means according to Claim 1, characterised in that the passage (13) at the strip inlet can be sealed by a seal (14), e.g. by an electromagnetic brake.
    EP95921701A 1994-07-20 1995-06-15 Inversion casting device with crystallizer Expired - Lifetime EP0777757B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    DE4426705A DE4426705C1 (en) 1994-07-20 1994-07-20 Inversion casting installation with a crystalliser
    DE4426705 1994-07-20
    PCT/DE1995/000786 WO1996002683A1 (en) 1994-07-20 1995-06-15 Inversion casting device with crystallizer

    Publications (2)

    Publication Number Publication Date
    EP0777757A1 EP0777757A1 (en) 1997-06-11
    EP0777757B1 true EP0777757B1 (en) 1998-04-01

    Family

    ID=6524335

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP95921701A Expired - Lifetime EP0777757B1 (en) 1994-07-20 1995-06-15 Inversion casting device with crystallizer

    Country Status (15)

    Country Link
    US (1) US5850869A (en)
    EP (1) EP0777757B1 (en)
    JP (1) JP3016595B2 (en)
    CN (1) CN1173208A (en)
    AT (1) ATE164631T1 (en)
    AU (1) AU689596B2 (en)
    BR (1) BR9508303A (en)
    CA (1) CA2194406A1 (en)
    CZ (1) CZ288271B6 (en)
    DE (2) DE4426705C1 (en)
    ES (1) ES2114324T3 (en)
    MX (1) MX9606086A (en)
    RU (1) RU2127167C1 (en)
    WO (1) WO1996002683A1 (en)
    ZA (1) ZA954612B (en)

    Families Citing this family (9)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CN1050157C (en) * 1996-05-27 2000-03-08 宝山钢铁(集团)公司 Reversal-fixation method for continuous production of composite plate stripe
    DE19638905C1 (en) * 1996-09-23 1998-01-02 Schloemann Siemag Ag Production of continuous coated metal products, in particular, metal strips
    CA2225537C (en) 1996-12-27 2001-05-15 Mitsubishi Heavy Industries, Ltd. Hot dip coating apparatus and method
    FR2798396A1 (en) * 1999-09-09 2001-03-16 Lorraine Laminage Galvanizing equipment for steel band advancing vertically upward through molten zinc bath, has inductors occupying less width than recirculation channel
    FR2804443A1 (en) * 2000-01-28 2001-08-03 Usinor Device for the coating of metal strip defiling upwards by dipping in a liquid coating metal whilst preventing any contact between the strip and the walls of the inlet slot
    DE10014868A1 (en) * 2000-03-24 2001-09-27 Sms Demag Ag Process for the hot dip galvanizing of steel strips comprises stabilizing the strip hydrostatic or hydrodynamic admission vertically to the strip surface in the container and/or in the guiding channel during strip movement
    FI116453B (en) * 2000-12-20 2005-11-30 Outokumpu Oy Process for producing a multilayer metal product blank and multi-layer metal product blank
    DK2829625T3 (en) 2012-03-23 2018-12-03 Aleksandr Aleksandrovich Kulakovsky Device for applying a coating to an elongated product
    KR101385310B1 (en) * 2012-06-15 2014-04-21 한국생산기술연구원 Manufacturing apparatus for composite metarial

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    CA877204A (en) * 1971-08-03 General Electric Company Continuous formation of intermediates
    US2702525A (en) * 1949-07-13 1955-02-22 Whitfield & Sheshunoff Inc Apparatus for coating wire or strip with molten aluminum
    US3561399A (en) * 1964-07-02 1971-02-09 Homer W Giles Metal coating apparatus
    US3466186A (en) * 1966-05-16 1969-09-09 Gen Electric Dip forming method
    JPS54119342A (en) * 1978-02-22 1979-09-17 Hitachi Cable Ltd Partially plating method
    AU543645B2 (en) * 1980-06-26 1985-04-26 Nippon Kokan Kabushiki Kaisha Hot dip plating on one side of strip
    FR2548935B1 (en) * 1983-07-12 1986-07-11 Pont A Mousson PROCESS AND INSTALLATION FOR THE CONTINUOUS CASTING OF A CAST IRON PIPE
    JPS61199064A (en) * 1985-02-27 1986-09-03 Hitachi Cable Ltd Hot dip coating apparatus
    DE3680547D1 (en) * 1986-05-27 1991-08-29 Mannesmann Ag METHOD FOR PRODUCING THIN METAL STRINGS.
    US5063989A (en) * 1990-06-22 1991-11-12 Armco Inc. Method and apparatus for planar drag strip casting
    DE4208578A1 (en) * 1992-03-13 1993-09-16 Mannesmann Ag METHOD FOR COATING THE SURFACE OF STRAND-SHAPED GOODS
    JPH0665703A (en) * 1992-08-21 1994-03-08 Sumiden Fine Kondakuta Kk Hot-dip metal coating method and device therefor

    Also Published As

    Publication number Publication date
    DE4426705C1 (en) 1995-09-07
    AU2668595A (en) 1996-02-16
    RU2127167C1 (en) 1999-03-10
    JPH10502874A (en) 1998-03-17
    ES2114324T3 (en) 1998-05-16
    BR9508303A (en) 1997-10-21
    CZ288271B6 (en) 2001-05-16
    US5850869A (en) 1998-12-22
    CZ9997A3 (en) 1997-07-16
    MX9606086A (en) 1998-02-28
    WO1996002683A1 (en) 1996-02-01
    CA2194406A1 (en) 1996-02-01
    JP3016595B2 (en) 2000-03-06
    CN1173208A (en) 1998-02-11
    ZA954612B (en) 1996-01-26
    AU689596B2 (en) 1998-04-02
    DE59501789D1 (en) 1998-05-07
    ATE164631T1 (en) 1998-04-15
    EP0777757A1 (en) 1997-06-11

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