EP0482423A1 - Immersion casting pipe for the introduction of molten steel in a continuous casting mould - Google Patents

Immersion casting pipe for the introduction of molten steel in a continuous casting mould Download PDF

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Publication number
EP0482423A1
EP0482423A1 EP91117179A EP91117179A EP0482423A1 EP 0482423 A1 EP0482423 A1 EP 0482423A1 EP 91117179 A EP91117179 A EP 91117179A EP 91117179 A EP91117179 A EP 91117179A EP 0482423 A1 EP0482423 A1 EP 0482423A1
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EP
European Patent Office
Prior art keywords
outflow
pouring tube
immersion
tube according
immersion pouring
Prior art date
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.)
Granted
Application number
EP91117179A
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German (de)
French (fr)
Other versions
EP0482423B1 (en
Inventor
Hans Streubel
Jürgen Friedrich
Horst Grothe
Günter Dr. Flemming
Erk Boysen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Siemag AG
Original Assignee
SMS Schloemann Siemag AG
Schloemann Siemag AG
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Application filed by SMS Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0482423A1 publication Critical patent/EP0482423A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/50—Pouring-nozzles

Definitions

  • the invention relates to an immersion pouring tube for introducing molten metal, in particular liquid steel, into the pouring region of a continuous casting installation, consisting of an inflow part connected to a casting container and a flattened outlet part with at least one surface arranged in the direction of flow.
  • a flattened end part with slot-like outlet openings and a base piece with a raised inner contour are arranged on the cylindrical tube part.
  • the base piece has a greater extent in the direction of the outflow openings than the distance between the walls delimiting the outflow openings upwards.
  • the known pouring tube has not grown with the required operational reliability and service life, despite the complex manufacture of the high stresses in continuous steel casting.
  • the molten steel emerges from the narrow outflow openings with excessive kinetic energy, which in particular in a narrow steel strip casting mold leads to washing out of the still thin strand shell and the formation of a damming wave in front of the narrow side walls.
  • an irregular surface structure is formed due to the uneven flow distribution within the mold.
  • the object of the invention is to provide a reliable immersion pouring tube for pouring molten steel into a mold, in particular for casting steel strips, whereby due to better flow distribution, a build-up wave in the surface of the bath level and a washing out of the strand shell formed by the liquid steel are greatly reduced and a casting strand, in particular steel strip, is used uniformly flawless surface is achieved.
  • the spraying and baking of molten steel on the mold walls should be avoided during the casting process.
  • the invention is based on the knowledge that the cause of an uneven, unstable melt distribution within the mold is too high and uneven exit velocity over the exit cross-sections.
  • the object is achieved in that the outflow part has at least one surface for dividing the flow into at least two individual flows and surfaces for mutually directing the individual flows in front of the outflow opening.
  • a web connecting the wide walls of the outflow part has the upper partial surfaces and at least one lower guide surface.
  • the outflow part forms the lateral guide surface and floor surfaces at a distance from the web.
  • the width w of the outflow opening corresponds to at least twice the distance a of the web sliding surface from the floor.
  • the width of the outflow part parallel to the wide walls is between 350 and 550 mm.
  • FIG. 1 there is an immersion pouring tube 3 at the bottom outlet 1 of a casting container 2, the lower end of which projects into a steel strip casting mold 4 to below the casting level 5.
  • the steel strip casting mold 4 consists of two cooled broad side walls 6 and two narrow side walls 7 which are adjustably arranged between them.
  • the wide side walls 6 form an enlarged pouring area 8 for receiving the immersion pouring tube 3, which extends over part of the mold height.
  • the immersion pouring tube 3 consists of a connecting piece 9, a flat outflow part 10 and a transition part 11.
  • the outflow part 10 is formed by two wide walls 12, two guide walls 13 and a bottom 14.
  • the web 16 has two partial surfaces 17 on the upper side, which in the exemplary embodiment are inclined towards one another in a roof-like manner.
  • the flow 18 tapering from above is separated into two partial flows 19 by the partial surfaces 17 or, for example, a curved upper side.
  • the partial flows 19 are deflected twice on the guide walls 13 and the bottom 14, so that they meet below the guide surface 20 of the web 16, with considerable flow energy being consumed. As a result, a stream of liquid steel of low speed emerges from the outflow opening 15, so that a ram wave and washing out of the strand shell are avoided.
  • the lower guide surface 20 of the web 16 determines the height of the lateral flow cross sections, i.e. the distance a of the guide surface 20 from the floor 14. This can advantageously be 50 to 150 mm.
  • the wide walls 12 are shorter in the area of the outflow openings 15 than in the area of the bottom 14.
  • the width b of the outflow part 10 can be between 350-550 mm.
  • the width w of the outflow opening 15 should be at least twice the distance a between the guide surface 20 and the floor 14.
  • the invention is not restricted to the exemplary embodiment shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Continuous Casting (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

An immersion casting pipe for the introduction of molten metal, in particular molten steel, into the charging region of a continuous casting plant, consists of an inflow part connected to a casting vessel and of a flattened outlet part with at least one surface arranged in the direction of flow. To improve the inflow conditions and obtain a steel strip with a uniformly defect-free surface, the outflow part (10) has at least one surface (17) for dividing the flow into at least two individual flows (19) and surfaces (13, 14) for directing the individual flows (19) towards one another in front of the outflow opening (15). <IMAGE>

Description

Die Erfindung betrifft ein Tauchgießrohr zum Einleiten von Metallschmelze insbesondere flüssigem Stahl in den Eingießbereich einer Stranggießanlage, bestehend aus einem an einem Gießbehälter angeschlossenen Zuflußteil und einem abgeflachten Auslaufteil mit mindestens einer in Strömungsrichtung angeordneten Fläche.The invention relates to an immersion pouring tube for introducing molten metal, in particular liquid steel, into the pouring region of a continuous casting installation, consisting of an inflow part connected to a casting container and a flattened outlet part with at least one surface arranged in the direction of flow.

Bei diesem durch die DE-A 37 09 188 bekannten Tauchgießrohr ist an dem zylindrischen Rohrteil ein abgeflachtes Endteil mit schlitzartigen Austrittsöffnungen und ein Bodenstück mit erhabener Innenkontur angeordnet. Das Bodenstück hat in Richtung der Ausströmöffnungen eine größere Ausdehnung als der Abstand der die Ausströmöffnungen nach oben begrenzenden Wandungen.In this immersion pouring tube known from DE-A 37 09 188, a flattened end part with slot-like outlet openings and a base piece with a raised inner contour are arranged on the cylindrical tube part. The base piece has a greater extent in the direction of the outflow openings than the distance between the walls delimiting the outflow openings upwards.

Das bekannte Gießrohr ist trotz aufwendiger Herstellung der hohen Beanspruchung beim Stahlstranggießen nicht mit der erforderlichen Betriebssicherheit und Standzeit gewachsen. Aus den schmalen Ausströmöffnungen tritt die Stahlschmelze gebündelt mit zu hoher kinetischer Energie aus, wodurch es insbesondere in einer schmalen Stahlbandgießkokille zu Auswaschungen an der noch dünnen Strangschale und zur Ausbildung einer Stauwelle vor den Schmalseitenwänden kommt. Darüber hinaus kommt es bei Verwendung des bekannten Gießrohres aufgrund ungleicher Strömungsverteilung innerhalb der Kokille zur Ausbildung einer unregelmäßigen Oberflächenstruktur.The known pouring tube has not grown with the required operational reliability and service life, despite the complex manufacture of the high stresses in continuous steel casting. The molten steel emerges from the narrow outflow openings with excessive kinetic energy, which in particular in a narrow steel strip casting mold leads to washing out of the still thin strand shell and the formation of a damming wave in front of the narrow side walls. In addition, when the known pouring tube is used, an irregular surface structure is formed due to the uneven flow distribution within the mold.

Aufgabe der Erfindung ist die Schaffung eines betriebssicheren Tauchgießrohres zum Eingießen von Stahlschmelze in eine Kokille insbesondere zum Gießen von Stahlbändern, wobei aufgrund besserer Strömungsverteilung eine Stauwelle in der Badspiegeloberfläche und eine Auswaschung der sich bildenden Strangschale durch den flüssigen Stahl stark vermindert und ein Gießstrang insbesondere Stahlband mit gleichmäßig fehlerfreier Oberfläche erzielt wird. Darüber hinaus soll beim Angießvorgang das Hochspritzen und Anbacken von Stahlschmelze an den Kokillenwänden vermieden werden.The object of the invention is to provide a reliable immersion pouring tube for pouring molten steel into a mold, in particular for casting steel strips, whereby due to better flow distribution, a build-up wave in the surface of the bath level and a washing out of the strand shell formed by the liquid steel are greatly reduced and a casting strand, in particular steel strip, is used uniformly flawless surface is achieved. In addition, the spraying and baking of molten steel on the mold walls should be avoided during the casting process.

Die Erfindung basiert auf der Erkenntnis, daß die Ursache für eine ungleiche, instabile Schmelzenverteilung innerhalb der Kokille zu hohe und ungleiche Austrittsgeschwindigkeit über die Austrittsquerschnitte ist.The invention is based on the knowledge that the cause of an uneven, unstable melt distribution within the mold is too high and uneven exit velocity over the exit cross-sections.

Dadurch, daß die Austrittsgeschwindigkeit im unteren Teil des Austrittsschlitzes am größten ist, bilden sich unterhalb der Ausströmöffnung je ein starker Wirbel und entsprechende aufwärts gerichtete Ausgleichsströmungen vor der Schmalseitenwand aus, die zu einer Stauwelle auf dem Badspiegel führen.Because the exit speed is greatest in the lower part of the exit slot, a strong vortex and corresponding upward equalizing flows form in front of the narrow side wall below the outflow opening, which lead to a ram wave on the bath level.

Erfindungsgemäß wird die gestellte Aufgabe dadurch gelöst, daß der Ausströmteil mindestens eine Fläche zur Teilung der Strömung in mindestens zwei Einzelströmungen und Flächen zur Gegeneinanderleitung der Einzelströmungen vor der Ausströmsöffnung aufweist.According to the invention, the object is achieved in that the outflow part has at least one surface for dividing the flow into at least two individual flows and surfaces for mutually directing the individual flows in front of the outflow opening.

Auf diese Weise werden nachteilige Querströmungen mit oberen Stauwellen und Auswaschungen der Strangschale vermieden und ein Produkt mit fehlerfreier Oberfläche erzielt.In this way, disadvantageous cross-currents with upper damming waves and washing out of the strand shell are avoided and a product with a flawless surface is achieved.

Gemäß einem weiteren Merkmal der Erfindung weist ein die Breitwände des Ausströmteiles verbindender Steg die oberen Teilflächen und mindestens eine untere Leitfläche auf. Der Ausströmteil bildet im Abstand zum Steg seitliche Leitfläche und Bodenflächen.According to a further feature of the invention, a web connecting the wide walls of the outflow part has the upper partial surfaces and at least one lower guide surface. The outflow part forms the lateral guide surface and floor surfaces at a distance from the web.

Eine besonders vorteilhafte Ausgestaltung der Erfindung wird darin gesehen, daß die Stegleitfläche im Abstand a = 50 - 150 mm vor einem mit der Ausströmsöffnung versehenen Boden angeordnet ist.A particularly advantageous embodiment of the invention is seen in the fact that the web sliding surface is arranged at a distance a = 50-150 mm in front of a floor provided with the outflow opening.

Die Weite w der Ausstromöffnung entspricht mindestens dem zweifachen Abstand a der Stegleitfläche vom Boden.The width w of the outflow opening corresponds to at least twice the distance a of the web sliding surface from the floor.

Besonders günstige Ausströmbedingungen ergeben sich, wenn die Breitwände im Bereich der Ausströmöffnungen um maximal 0,5 · a kürzer sind als im Bereich des Bodens.Particularly favorable outflow conditions result when the wide walls in the area of the outflow openings are a maximum of 0.5 · a shorter than in the area of the floor.

Die Breite des Ausströmteiles parallel zu den Breitwänden beträgt zwischen 350 und 550 mm.The width of the outflow part parallel to the wide walls is between 350 and 550 mm.

In der Zeichnung ist ein Ausführungsbeispiel mit Merkmalen und Vorteilen der Erfindung dargestellt. Es zeigen

Fig. 1
schematisch eine Dünnbrammengießmaschine mit in den erweiterten Eingießbereich hineinragendem Tauchgießrohr im Längsschnitt,
Fig. 2
eine Draufsicht zu Fig. 1,
Fig. 3
einen Längsschnitt durch das Tauchgießrohr parallel zu den Breitwänden,
Fig. 4
einen Längsschnitt durch das Tauchgießrohr quer zu den Breitwänden,
Fig. 5
eine Ansicht des Tauchgießrohres gegen die Ausströmöffnung
und
Fig. 6
einen Querschnitt des Tauchgießrohres gemäß der Linie VI - VI in Fig. 4.
In the drawing, an embodiment is shown with features and advantages of the invention. Show it
Fig. 1
schematically shows a thin slab casting machine with a dip pipe protruding into the extended pouring area, in longitudinal section,
Fig. 2
2 shows a top view of FIG. 1,
Fig. 3
a longitudinal section through the immersion pouring tube parallel to the wide walls,
Fig. 4
a longitudinal section through the immersion pipe transverse to the wide walls,
Fig. 5
a view of the immersion pouring tube against the outflow opening
and
Fig. 6
3 shows a cross section of the immersion pouring tube along the line VI-VI in FIG. 4.

Gemäß Figur 1 befindet sich am Bodenauslaß 1 eines Gießbehälters 2 ein Tauchgießrohr 3, das mit seinem unteren Ende in eine Stahlbandgießkokille 4 bis unter den Gießspiegel 5 ragt. Die Stahlbandgießkokille 4 besteht aus zwei gekühlten Breitseitenwänden 6 und zwei zwischen diesen verstellbar angeordneten Schmalseitenwänden 7. Die Breitseitenwände 6 bilden zur Aufnahme des Tauchgießrohres 3 einen erweiterten Eingießbereich 8, der sich über einen Teil der Kokillenhöhe erstreckt.According to FIG. 1, there is an immersion pouring tube 3 at the bottom outlet 1 of a casting container 2, the lower end of which projects into a steel strip casting mold 4 to below the casting level 5. The steel strip casting mold 4 consists of two cooled broad side walls 6 and two narrow side walls 7 which are adjustably arranged between them. The wide side walls 6 form an enlarged pouring area 8 for receiving the immersion pouring tube 3, which extends over part of the mold height.

Das erfindungsgemäße Tauchgießrohr 3 besteht aus einem Anschlußstutzen 9, einem flachen Ausströmteil 10 und einem Übergangsteil 11. Der Ausströmteil 10 wird von zwei Breitwänden 12, zwei Leitwänden 13 und einem Boden 14 gebildet. In dem Boden befindet sich eine Ausströmöffnung 15. Oberhalb der Ausströmöffnung 15 befindet sich ein die Breitwände 12 verbindender Steg 16.The immersion pouring tube 3 according to the invention consists of a connecting piece 9, a flat outflow part 10 and a transition part 11. The outflow part 10 is formed by two wide walls 12, two guide walls 13 and a bottom 14. There is an outflow opening 15 in the floor. Above the outflow opening 15 there is a web 16 connecting the wide walls 12.

Der Steg 16 hat an der Oberseite zwei Teilflächen 17, die im Ausführungsbeispiel dachartig zueinander geneigt sind. Durch die Teilflächen 17 oder z.B. eine gewölbte Oberseite wird die von oben zulaufende Strömung 18 in zwei Teilströmungen 19 getrennt.The web 16 has two partial surfaces 17 on the upper side, which in the exemplary embodiment are inclined towards one another in a roof-like manner. The flow 18 tapering from above is separated into two partial flows 19 by the partial surfaces 17 or, for example, a curved upper side.

Die Teilströmungen 19 werden an den Leitwänden 13 und dem Boden 14 zweifach umgelenkt, so daß sie unterhalb der Leitfläche 20 des Steges 16 aufeinandertreffen, wobei erhebliche Strömungsenergie verzehrt wird. Infolgedessen tritt aus der Ausströmöffnung 15 ein Strom flüssigen Stahls geringer Geschwindigkeit aus, so daß eine Stauwelle und Auswaschungen der Strangschale vermieden werden.The partial flows 19 are deflected twice on the guide walls 13 and the bottom 14, so that they meet below the guide surface 20 of the web 16, with considerable flow energy being consumed. As a result, a stream of liquid steel of low speed emerges from the outflow opening 15, so that a ram wave and washing out of the strand shell are avoided.

Die untere Leitfläche 20 des Steges 16 bestimmt die Höhe der seitlichen Strömungsquerschnitte, d.h. den Abstand a der Leitfläche 20 vom Boden 14. Dieser kann vorteilhaft 50 bis 150 mm betragen.The lower guide surface 20 of the web 16 determines the height of the lateral flow cross sections, i.e. the distance a of the guide surface 20 from the floor 14. This can advantageously be 50 to 150 mm.

Die Breitwände 12 sind im Bereich der Ausströmöffnungen 15 kürzer als im Bereich des Bodens 14.The wide walls 12 are shorter in the area of the outflow openings 15 than in the area of the bottom 14.

Die Breite b des Ausströmteils 10 kann zwischen 350 - 550 mm betragen.The width b of the outflow part 10 can be between 350-550 mm.

Die Weite w der Ausströmöffnung 15 soll mindestens das Doppelte des Abstandes a der Leitfläche 20 vom Boden 14 betragen.The width w of the outflow opening 15 should be at least twice the distance a between the guide surface 20 and the floor 14.

Die Erfindung ist nicht auf das dargestellte Ausführungsbeispiel beschränkt.The invention is not restricted to the exemplary embodiment shown.

Claims (7)

Tauchgießrohr zum Einleiten von Metallschmelze insbesondere flüssigem Stahl in den Eingießbereich einer Stranggießanlage, bestehend aus einem an einem Gießbehälter angeschlossenen Zuflußteil und einem abgeflachten Auslaufteil mit mindestens einer in Strömungsrichtung angeordneten Fläche,
dadurch gekennzeichnet,
daß der Ausströmteil (10) mindestens eine Fläche (17) zur Teilung der Strömung in mindestens zwei Einzelströmungen (19) und Flächen (13, 14) zur Gegeneinanderleitung der Einzelströmungen (19) vor der Ausströmöffnung (15) aufweist.Immersion pouring tube for introducing molten metal, in particular liquid steel, into the pouring area of a continuous casting installation, consisting of an inflow part connected to a casting container and a flattened outlet part with at least one surface arranged in the direction of flow,
characterized,
that the outflow part (10) has at least one surface (17) for dividing the flow into at least two individual flows (19) and surfaces (13, 14) for mutually directing the individual flows (19) in front of the outflow opening (15). Tauchgießrohr nach Anspruch 1,
dadurch gekennzeichnet,
daß ein die Breitwände (12) des Ausströmteiles (15) verbindender Steg (16) die oberen Teilflächen (17) und mindestens eine untere Leitfläche (20) aufweist.Immersion pouring tube according to claim 1,
characterized,
that a web (16) connecting the wide walls (12) of the outflow part (15) has the upper partial surfaces (17) and at least one lower guide surface (20). Tauchgießrohr nach den Ansprüchen 1 und 2,
dadurch gekennzeichnet,
daß der Ausströmteil (10) im Abstand zum Steg (16) seitliche Leitflächen (13) und Bodenflächen (14) aufweist.Immersion pouring tube according to claims 1 and 2,
characterized,
that the outflow part (10) has lateral guide surfaces (13) and base surfaces (14) at a distance from the web (16). Tauchgießrohr nach den Ansprüchen 1 bis 3,
dadurch gekennzeichnet,
daß die Leitfläche (20) im Abstand (a = 50 - 150 mm) vor einem mit der Ausströmöffnung (15) versehenen Boden (14) angeordnet ist.Immersion pouring tube according to claims 1 to 3,
characterized,
that the guide surface (20) is arranged at a distance (a = 50-150 mm) in front of a base (14) provided with the outflow opening (15). Tauchgießrohr nach den Ansprüchen 1 bis 4,
dadurch gekennzeichnet,
daß die Weite w der Ausströmöffnung (15) mindestens dem zweifachen Abstand a der Stegleitfläche (20) vom Boden (14) entspricht.Immersion pouring tube according to claims 1 to 4,
characterized,
that the width w of the outflow opening (15) corresponds to at least twice the distance a of the web sliding surface (20) from the floor (14). Tauchgießrohr nach den Ansprüchen 1 bis 5,
dadurch gekennzeichnet,
daß die Breitwände (12) im Bereich der Ausströmöffnungen (15) um maximal 0,5 a kürzer sind als im Bereich des Bodens (14).Immersion pouring tube according to claims 1 to 5,
characterized,
that the wide walls (12) in the area of the outflow openings (15) are a maximum of 0.5 a shorter than in the area of the bottom (14). Tauchgießrohr nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet,
daß die Breite b des Ausströmteiles (10) parallel zu den Breitwänden (12) zwischen 350 und 550 mm beträgt.Immersion pouring tube according to one of claims 1 to 6,
characterized,
that the width b of the outflow part (10) parallel to the wide walls (12) is between 350 and 550 mm.
EP91117179A 1990-10-15 1991-10-09 Immersion casting pipe for the introduction of molten steel in a continuous casting mould Revoked EP0482423B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4032624 1990-10-15
DE4032624A DE4032624A1 (en) 1990-10-15 1990-10-15 SUBMERSIBLE PIPE FOR INLETING STEEL MELT IN A CONTINUOUS MOLD

Publications (2)

Publication Number Publication Date
EP0482423A1 true EP0482423A1 (en) 1992-04-29
EP0482423B1 EP0482423B1 (en) 1994-08-03

Family

ID=6416275

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91117179A Revoked EP0482423B1 (en) 1990-10-15 1991-10-09 Immersion casting pipe for the introduction of molten steel in a continuous casting mould

Country Status (3)

Country Link
EP (1) EP0482423B1 (en)
AT (1) ATE109386T1 (en)
DE (2) DE4032624A1 (en)

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FR2668966A1 (en) * 1990-11-14 1992-05-15 Ishikawajima Harima Heavy Ind CONTINUOUS BAND CASTING.
US5402993A (en) * 1991-06-21 1995-04-04 Mannesmann Aktiengesellschaft Immersion casting pipe for thin slabs
WO1995029025A1 (en) * 1994-04-25 1995-11-02 Vesuvius Usa Submergent entry nozzle
EP0700740A1 (en) 1994-08-08 1996-03-13 DANIELI &amp; C. OFFICINE MECCANICHE S.p.A. Discharge nozzle for continuous casting
WO1996011078A1 (en) * 1994-10-07 1996-04-18 Mannesmann Ag Immersed pouring spout
EP0709153A1 (en) 1994-09-30 1996-05-01 DANIELI &amp; C. OFFICINE MECCANICHE S.p.A. Discharge nozzle for a crystalliser for continuous casting of slabs
WO1998014292A1 (en) * 1996-10-03 1998-04-09 Vesuvius Crucible Company Casting nozzle with diamond-back internal geometry and multi-part casting nozzle with varying effective discharge angles and method for flowing liquid metal through same
US5944261A (en) * 1994-04-25 1999-08-31 Vesuvius Crucible Company Casting nozzle with multi-stage flow division
EP1002600A2 (en) * 1998-11-20 2000-05-24 SMS Demag AG Submerged nozzle for feeding molten metal into a mould for the continuous casting of thin material
WO2003061880A1 (en) * 2002-01-23 2003-07-31 Sms Demag Ag Submerged nozzle for a metallurgic container placed upstream from a casting device
WO2005021187A1 (en) * 2003-08-27 2005-03-10 Chosun Refractories Co., Ltd. Submerged entry nozzle for continuous casting
CN100377815C (en) * 2003-08-27 2008-04-02 朝鲜耐火株式会社 Submerged entry nozzle for continuous casting
WO2013004571A1 (en) * 2011-07-06 2013-01-10 Refractory Intellectual Property Gmbh & Co. Kg A nozzle for guiding a metal melt
WO2015189742A1 (en) * 2014-06-11 2015-12-17 Arvedi Steel Engineering S.P.A. Thin slab nozzle for distributing high mass flow rates
CN112548086A (en) * 2020-12-03 2021-03-26 一重集团大连工程技术有限公司 Plate blank immersion type water gap for inhibiting liquid level fluctuation

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DE4300505C2 (en) * 1993-01-06 1995-08-24 Mannesmann Ag Immersion pouring tube for metallurgical vessels
DE4319966A1 (en) * 1993-06-17 1994-12-22 Didier Werke Ag Immersion spout
DE10240491A1 (en) * 2002-09-03 2004-01-15 Refractory Intellectual Property Gmbh & Co.Kg Refractory ceramic immersion tube used in a continuous casting installation comprises a through-channel for connecting a feed opening for a metal melt on one end to an outlet opening for the metal melt on another end

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WO1988006932A1 (en) * 1987-03-20 1988-09-22 Mannesmann Ag Immersion nozzle for metallurgical recipients
EP0336158A2 (en) * 1988-04-08 1989-10-11 Sms Schloemann-Siemag Aktiengesellschaft Immersion casting pipe for the introduction of molten metal in a metal strip casting permanent mould
WO1989012519A1 (en) * 1988-06-16 1989-12-28 Davy (Distington) Limited Refractory feed tube

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PATENT ABSTRACTS OF JAPAN vol. 13, no. 118 (M-806)(3466) 23. März 1989 & JP-A-63 295 056 ( NKK CORP ) 1. Dezember 1988 *

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CN112548086B (en) * 2020-12-03 2022-05-17 一重集团大连工程技术有限公司 Plate blank immersion type water gap for inhibiting liquid level fluctuation

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ATE109386T1 (en) 1994-08-15
DE59102423D1 (en) 1994-09-08
EP0482423B1 (en) 1994-08-03

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