EP0775543B1 - Giessrohr zum Einleiten eines flüssigen Metalles in einer Stranggiesskokille zum Giessen metallischer Produkte mit diesem ausgerüstete Stranggiessvorrichtung - Google Patents

Giessrohr zum Einleiten eines flüssigen Metalles in einer Stranggiesskokille zum Giessen metallischer Produkte mit diesem ausgerüstete Stranggiessvorrichtung Download PDF

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Publication number
EP0775543B1
EP0775543B1 EP96402272A EP96402272A EP0775543B1 EP 0775543 B1 EP0775543 B1 EP 0775543B1 EP 96402272 A EP96402272 A EP 96402272A EP 96402272 A EP96402272 A EP 96402272A EP 0775543 B1 EP0775543 B1 EP 0775543B1
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EP
European Patent Office
Prior art keywords
nozzle
liquid metal
casting
continuous casting
terminal part
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Expired - Lifetime
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EP96402272A
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English (en)
French (fr)
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EP0775543A1 (de
Inventor
Jean-Michel Damasse
Jacques Barbe
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Thyssen Stahl AG
USINOR SA
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Thyssen Stahl AG
USINOR SA
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Publication of EP0775543A1 publication Critical patent/EP0775543A1/de
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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
    • B22D11/0637—Accessories therefor
    • B22D11/064—Accessories therefor for supplying molten metal
    • B22D11/0642—Nozzles
    • 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
    • B22D11/10—Supplying or treating molten metal
    • B22D11/106—Shielding the molten jet
    • 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
    • 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
    • B22D41/60—Pouring-nozzles with heating or cooling means

Definitions

  • the invention relates to the continuous casting of metals, in particular steel. More specifically, it relates to tubes made of refractory material called "nozzles" according to the preamble of claim 1 (WO-A- 88/06932) who, are usually connected by their upper end to the distributor serving as liquid metal reservoir, the lower end of which dips into the metal bath liquid contained in the ingot mold where the solidification of the metal product begins.
  • the first role of these nozzles is to protect from atmospheric oxidation the jet of liquid metal on its path between the container and the mold. They allow also, thanks to appropriate configurations of their lower end, to orient the liquid metal flows in the ingot mold favorably so that the solidification of the product is carried out under the best possible conditions.
  • the casting can take place in an ingot mold which must give the product a very elongated rectangular section, which usually designates it by the expression "flat product”.
  • This is the case when, in the steel industry, steel is poured under slab shape, i.e. products about 0.6 to 3 m wide and a thickness generally of the order of 20 cm, but which can go down to a few cm on certain recent installations called “thin slab casting machines”.
  • the ingot mold is composed of fixed walls of copper or alloy of copper, energetically cooled on their cold side which is not in contact with the metal. We are also experimenting with installations making it possible to obtain, directly by solidification of liquid metal, steel strips a few mm thick.
  • the terminal lower part of the nozzle is sometimes given a shape complex, elongated parallel to the long sides of the pouring space. She occupies therefore a significant proportion of this space, particularly in the case of casting thin products between cylinders. It also represents a mass of material refractory that must be carefully preheated before pouring, under penalty of freezing the metal inside or around the nozzle at the start of casting. This is all the more the case when the nozzle is, inside, equipped obstacles locally narrowing its section in order to impose losses on the metal loads which stabilize its flow.
  • the object of the invention is to provide users with a type of nozzle and a casting installation incorporating it, which makes it possible to overcome a large measurement of the thermal problems which we have just mentioned, without having to complicate exaggeratedly the construction and use of the nozzle.
  • the invention relates to a nozzle for the introduction of a liquid metal into a mold for continuous product casting of metal, of the type comprising a chimney the upper end of which is intended to be connected by means of attachment to the outlet nozzle of a container containing said liquid metal, and the lower end of which is connected to a part end of the nozzle equipped with orifices intended to distribute said liquid metal in the casting space defined by said ingot mold, characterized in that said part terminal has, in its upper zone, at least one opening intended to allow the interior of said end portion to be reheated by means of heating such as a burner.
  • the invention also relates to a continuous casting installation of metal products, of the type comprising a bottomless ingot mold on the walls energetically internally cooled defining a casting space, and a nozzle of refractory material connected by its upper end to a container containing a liquid metal, and the lower end of which brings said liquid metal into said pouring space, characterized in that said nozzle is of the type previously described.
  • This installation can in particular be a slab casting installation conventional or a thin strip casting installation, directly from metal liquid, such as casting between cylinders.
  • the invention consists in equipping a nozzle with at least less an opening allowing the passage of a device such as a burner which can heat the inside of the nozzle.
  • a device such as a burner which can heat the inside of the nozzle.
  • a corresponding number of openings must be provided. These burners can, if necessary, act both before and during casting.
  • the openings must, during casting, be kept permanently above the level of liquid metal, and can also be used to introduce additives in small quantities in the liquid metal, taking advantage, if necessary, of the action of burners to compensate for the heat losses due to this addition.
  • We can also, at start of casting, introduce into the metal, thanks to these openings, a powder exothermic favoring the start of casting or the fusion of solidifications parasites which thus become temporary.
  • the nozzle For effective use of this type of nozzle, it is essential to prevent air from passing through these openings and pollute the metal inside the nozzle. It is therefore highly recommended for this purpose enclose at least the lower part of the nozzle under a cover which ensures also environmental protection of the mold.
  • the invention is particularly suitable for the case where the nozzle has, in its lower part, a flared and elongated shape, this lower part being intended to be oriented parallel to the long sides of the mold.
  • the embodiment shown in Figures 1a and 1b relates to casting continuous of standard steel slabs, with a thickness of about 20 cm and a width between 0.6 and 3 m approximately.
  • the casting installation includes a liquid metal tank called "distributor", not shown.
  • Liquid steel flows from distributor, with a flow controllable by the operator, through an orifice provided in the bottom of the dispatcher. This orifice is extended by a tubular outlet nozzle 1 in a refractory material such as graphitized alumina, the interior space 2 of which is cylindrical, and to which is connected a nozzle 3 of a type according to the invention.
  • This nozzle 3 is made of a refractory material similar to the previous one, or of a material different, the nature of which takes account of the constraints of producing the nozzle 3 or physicochemical conditions prevailing in the mold. It has two parts, executed in one piece in the example shown.
  • the first part is a chimney 4 with an overall external shape cylindrical with diameter "d”, and whose cylindrical interior space 5 extends that of the outlet nozzle 1, being equal to or preferably slightly larger in diameter, so that any slight misalignment of the two spaces 2 and 5 is of no consequence on metal flows.
  • the connection between the outlet nozzle 1 and the chimney 4 of the nozzle 3 must be as tight as possible to avoid the creation of a suction current from the ambient atmosphere inside the nozzle 3. In the example shown, this connection is made by fixing to each other by means not shown of an upper ring 6 and a lower ring 7 which are supported on bearing surfaces 8, 9 respectively provided at the lower end of the outlet nozzle 1 and at the upper end of the chimney 4.
  • the second part of the nozzle 3, called the terminal part, has the functions of receive the liquid steel coming out of the chimney 4, and distribute it in the casting space defined by the ingot mold 10.
  • This ingot mold 10, which, as shown in the figures 1a, 1b, is suitable for the casting of steel slabs of conventional format, has as usually two long sides 11, 11 'and two short sides 12, 12', formed by walls of copper or copper alloy energetically cooled internally, and on which begins the solidification of the liquid metal. It gives the casting space 13 a constant rectangular cross section over its entire height.
  • the nozzle 3 retains a thickness "e" equal to the outside diameter "d" from the chimney 4, or little different from it.
  • the end part of the nozzle 3 has a pentagonal shape: when the nozzle 3 is in square, the bottom 14 is substantially horizontal, the side walls 15, 15 ', 15' ', 15' '' are substantially vertical, and these are connected to the lower end of the chimney 4 by oblique walls 16, 16 '.
  • these oblique walls 16, 16 'each have a opening 17, 17 '.
  • the function of these openings 17, 17 ' will be explained below; But they have, in principle, no role in the introduction of liquid metal into the space of casting 13.
  • This introduction is normally provided by series of openings in the bottom 14 and the side walls 15, 15 ', 15' ', 15' '' of the nozzle 3, and located so as to always be below level 18 of the surface of the liquid metal in ingot mold under normal casting conditions.
  • a first series of holes 19, 19 ' is provided on the side walls 15 '', 15 '' 'which face the long sides 11, 11' of the ingot mold 10. They produce currents which must preferably feed the meniscus, i.e.
  • these orifices 19, 19 ′ are distributed over the whole of the width of the walls 15 '', 15 '' ', and can be oriented horizontally, or be inclined so as to orient the liquid metal which passes through them in the direction of the meniscus.
  • a second series of orifices 20, 20 ' is formed on the side walls 15, 15' which form facing the short sides 12, 12 ′ of the mold 10. They are generally one in number per wall 15, 15 ', due to the small width thereof. They have the same function as orifices 19, 19 'of the first series.
  • a third series of orifices 21 is formed in the bottom 14, of so as to supply the lower part of the casting space 13 with hot metal.
  • these orifices 21 are oriented vertically, but one can imagine to orient them obliquely if that appears useful.
  • the nozzle 3 also includes, so recommended but not compulsory, an insert 22, placed in a housing 23 inside of the chimney 4, which locally shrinks the interior space 5 of the chimney 4.
  • This local shrinkage causes the metal to lose part of its energy, which which leads to better filling of the entire interior space of the nozzle 3 and all of its outlet orifices 19, 19 ', 20, 20', 21.
  • the flows of the metal outside of the nozzle 3 are thus carried out with better regularity, which is favorable the quality of the cast metal.
  • This insert 22 can, as shown, take the form of a tubular element with a smaller diameter than that of the chimney 4, but it is possible give it other forms, for example that of a stack of perforated pellets. It can also be placed at the upstream or downstream end of the chimney 4.
  • the installation is completed by a device ensuring protection against the ambient atmosphere of the space surrounding the ingot mold 10.
  • the use of such device is not essential on a conventional slab casting installation, because the liquid steel is protected from the atmosphere by the fully closed nozzle and by the cover powder.
  • the openings 17, 17 'of the nozzle 3 according to the invention cause the interior space of the nozzle 3 to be exposed to the ambient atmosphere, and it is therefore particularly important to carry out an inerting of this atmosphere to avoid oxidation of the metal.
  • the flange 25 of the mold 10 has on its entire periphery a flange 26 supporting a channel 27 containing a sealing material such as sand 28.
  • the latter can therefore support the upward-downward movements of the distributor and the nozzle 3, with which the depth of immersion of the nozzle 3 in the steel can be adjusted liquid, without the inerting of the environment of the mold 10 being affected.
  • This vertical travel is also compatible with oscillating movements vertical, which is classic to impose on the mold.
  • Such a way of ensuring this sealing is known in itself, and of course is not the only one possible.
  • the cover 29 is pierced with two openings 31, 31 ', the dimensions and locations allow to insert two burners 32, 32 'oriented in direction of the openings 17, 17 'formed in the nozzle 3. This gives the possibility for these burners to heat the liquid metal when it is inside same of the nozzle 3, each burner 32, 32 'being in charge of half of the nozzle 3.
  • the use of a single burner 32, 32 ′ could be envisaged, but it is clear that the homogeneity of the reheating is better if there are two, in particular if we use the partition 24 which physically separates the interior space from the terminal part of the nozzle 3 in two compartments.
  • Each of these burners has a gas inlet fuel 33, 33 'and a combustion gas inlet 34, 34'.
  • This oxidizer can be oxygen or, preferably, air, because a defective adjustment of the flow rate oxidizer which would impose an incomplete consumption of it would cause a less oxidation, both of the metal and of the refractories.
  • the use of plasma torches, for example, is also possible.
  • Each of these burners 32, 32 ' is provided with a flange 35, 35 'which enables the opening 31, 31' of the hood to be sealed 29 that it crosses.
  • the collar 35, 35 ' is, for this purpose, fixed to the cover 29 by means not shown.
  • burners 32, 32 ' only during the nozzle 3 preheating phase, during which they preheat particularly effective from the inside of the nozzle 3.
  • excellent preheating of the entire nozzle 3 can be achieved, understood from its interior space.
  • the molds have either flat parallel faces 2 to 2, either converging faces towards the outlet of the ingot mold, or mixed faces flat / concave.
  • the nozzle 3 is drawn in accordance with the outline horizontal of the pouring space 13.
  • Figures 2a, 2b show another example of implementation of the invention, applied to the casting of thin strips, with a thickness of the order of a few mm, when carried out between two energetically cooled cylinders.
  • Organs common in their functions and in their configuration between this example and that shown in Figures 1a, 1b are identified there by the same references.
  • the space of casting 13 of the mold is, as known, constituted by two cylinders 36, 36 ' close together, with horizontal axes, rotated in opposite directions around their axes. They are energetically cooled internally so that the solidification of the product flow begins on their external surfaces forming solidified skins which join at neck 37, i.e. where the cylinders are closest one of the other, to form the cast strip.
  • Liquid metal such as steel is confined laterally in this casting space by refractory side faces 38, 38 ' applied against the edges 40, 40 'of the cylinders 36, 36'.
  • a first series of orifices 41, 41 ' is formed on the side walls 15' ', 15 '' 'of the nozzle 39 which face the cylinders 36, 36'. They are spread over a width as large as possible. In particular if, as shown, they are oriented towards the high, they preferentially supply the area of first contact between the liquid metal and the cylinder with which they are close and provide the quantity of heat necessary for prevention of parasitic solidifications.
  • a second series of orifices 42, 42 ' is formed on the side walls 15, 15 ′ of the nozzle 39 which face the side faces 38, 38 ′ confining the pouring space 13. They too can direct the flows liquid metal up.
  • a cover 29 is provided which is integral with the upper ring 6 and pierced with two openings 31, 31 'allowing the passage of two burners 32, 32 '.
  • This cover 29 covers the pouring space, isolates it from the ambient atmosphere, and ensures the heating of the interior space of the nozzle 39 before and possibly during casting.
  • the channel 27 filled with sand 28 which receives the falling edge 30 of the cover 29 is supported on the lateral faces 38, 38 ′ by means of supports vertical 47, 47 '.
  • plumb with the cylinders 36, 36 ' are fixed shoes 48, 48 'whose lower surfaces conform to the shape of the surface outside of the cylinders 36, 36 ′ being at least a few mm apart.
  • a neutral gas is blown through these shoes 48, 48 'inside the spaces 49, 49 'separating them from cylinders 36, 36', in order to constitute a barrier gas to the penetration of air into the space surrounding the mold.
  • nozzle 50 is shown in the figures 3a and 3b. It is, like the previous nozzle 39, adapted in particular to the casting of thin strips between two cylinders. It is integrated into an inerting device for the casting space 13 similar to that previously described and shown in the Figures 2a, 2b. This nozzle 50 is formed of two separate parts.
  • the second part of the nozzle 50 is constituted by a basket 52 remotely enveloping the lower portion of the first part 51. It rests on spans 53, 53 'formed on the hooves 48, 48'. In its lower part, it also has a narrowing, so as to make it conform to the shape of the casting space 13 and to maintain a roughly uniform distance between each of its outer walls and the cylinder 36, 36 'to which it faces. So the liquid metal leaving the first part 51 of the nozzle 50, instead of flowing directly into the pouring space 13, first passes inside the basket 52. It leaves therefrom by a series orifices formed in the bottom 54 and the side walls 55, 55 ', 56, 56' of the basket 52.
  • the orifices 57, 57 ', 58, 58' orient it towards the lateral faces 38, 38 '
  • the orifices 59, 59' orient it towards the cylinders 36, 36 '
  • the orifices 60, 61, 62, 63, 64, 65 orient it towards the bottom of the casting space 13. It is possible, for this purpose, to have two orifices in the bottom 54 which are neighbors give converging directions to the liquid metal, so that the currents break each other. This results in a diffuse flow of the metal which avoids thus local impacts on the solidified skin which would lead to its heating, even to his reflow.
  • Such a basket 52 has several advantages. It constitutes a additional energy absorber, thus giving better stability to liquid metal flows into the casting space 13 and attenuates the fluctuations of the level 18 of its surface, all things going in the direction of improving the quality of cast products. On the other hand, it allows to retain a large part of the non-metallic inclusions and various impurities present in the liquid metal flowing out of the distributor: this allows products to flow better cleanliness. But in return, such a basket 52, if it was used on a type nozzle usual, would deteriorate the preheating of the nozzle since it would make it inaccessible by outside, after assembly, the bottom 14 of the first part 51 of the nozzle which it surrounded.
  • FIG. 1 Another advantage of the nozzles 3, 39, 50 according to the invention is that the presence openings 17, 17 'makes it possible to introduce addition elements therein, in the form solid matter or gas.
  • This introduction can be achieved through conduits 66, 66 'passing through the cover 29, and the end of which lower overhangs the openings 17, 17 '.
  • solid materials can be introduced under powder, granules, wire or cored wire, or small diameter lances allowing gas to be bubbled through the liquid metal.
  • conduits 66, 66 ' can also be used to introduce measuring instruments inside the nozzle 3, such as means for measuring the temperature of the liquid metal or its dissolved oxygen content, or a probe taking gas samples to check the correct inerting of the atmosphere in the nozzle 3. It is also possible to introduce through these conduits 66, 66 ' means for taking samples of liquid metal, such as glass tubes under vacuum.
  • the other types of nozzles described and represented can also be equipped with such conduits 66, 66 ', or functionally equivalent devices. For guarantee a good distribution of these additions inside the nozzle 3, 39, 50, it is better to use two conduits 66, 66 'rather than one, especially in the case where a partition 24 is used.
  • micro-additions alloying elements This gives us the possibility of making micro-additions alloying elements at a late stage of development by ensuring homogeneity of these additions better than if they were carried out in the mold.
  • the possibility of heating the metal during casting, thanks to the burners 32, 32 ', at the very place where these additions are made, allows effective compensation their possible endothermic effect on the liquid metal.
  • these micro-additions may have the functions in particular of finely adjusting the composition of the metal, improve its solidification conditions, modify the composition and morphology of non-metallic inclusions.
  • nozzles 3, 39, 50 Another advantage of the nozzles 3, 39, 50 according to the invention is that the openings 17, 17 'make their manufacture in one piece by compaction easy hot isostatic of the refractory material which constitutes them, including when it is desired give them a complex interior shape. This compaction is usually made around a core in one or more pieces, which must be able to be then removed without damaging the nozzle.
  • the openings 17, 17 'of the nozzles according to the invention allow precisely to successively remove the different parts of the core. But the realization of the entire nozzle according to the invention in a single piece is not mandatory, and we can plan to make the nozzle in several parts that we assemble to each other before the fitting of the nozzle on the distributor, or at the time of this installation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Nozzles (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Claims (14)

  1. Gießrohr (3, 39, 50) zum Einführen von Flüssigmetall in eine Stranggußform (10) für Metallprodukte, umfassend einen Stutzen (4), dessen oberes Ende dazu dient, mit Hilfe von Befestigungsmitteln (6, 7) mit dem Ausgangsgießrohr (1) eines Behälters verbunden zu werden, der das Flüssigmetall enthält, und dessen unteres Ende mit einem Endteil des Gießrohrs (3, 39, 50) verbunden ist, das mit Öffnungen (19, 20, 20', 21, 41, 42, 42', 43, 43', 44, 44', 45, 45', 46, 46' ) ausgestattet ist, die dazu dienen, das Flüssigmetall im Gießraum (13) zu verteilen, der durch die Stranggußform (10) gebildet ist, dadurch gekennzeichnet, daß der genannte Endteil in seinem oberen Bereich zumindest eine Öffnung (17, 17') aufweist, die dazu dient, das Aufheizen des Inneren des Endteils mit Hilfe von Heizmitteln, wie z.B. eines Brenners (32, 32'), zu ermöglichen.
  2. Gießrohr nach Anspruch 1, dadurch gekennzeichnet, daß es zwei der Öffnungen (17, 17') aufweist, und daß es im Innenraum seines Endteils eine Trennwand (24) aufweist, die lotrecht zum genannten Stutzen (4) angebracht ist und den genannten Innenraum in zwei Anteile unterteilt, von denen jedes lotrecht zu einer dieser Öffnungen (17, 17') angebracht ist.
  3. Gießrohr nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der genannte Endteil von einem Korb (52) umgeben ist, der mit Öffnungen (57, 57', 58, 58', 59, 59', 60, 61, 62, 63, 64, 65) versehen ist, durch welche das Flüssigmetall in den Gießraum (13) strömt.
  4. Gießrohr nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß es Befestigungsvorrichtungen für die Heizmittel (32, 32') auf dem Endteil des Gießrohres (3,39, 50) aufweist.
  5. Gießrohr nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß es Mittel (66, 66') zum Einbringen von Zusatzelementen, von Meßinstrumenten bzw. Mitteln zur Entnahme von Proben des Flüssigmetalls im Inneren des Endteils des Gießrohrs (3, 39, 50) aufweist.
  6. Gießrohr nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß es ein Einsatzstück (22) aufweist, das den Durchflußbereich des Flüssigmetalls im Stutzen (4) oder an einem seiner Enden örtlich verengt.
  7. Stranggußanlage für Metallprodukte, umfassend eine Stranggußform (10) ohne Boden und mit von der Innenseite stark abgekühlten Seitenwänden (11, 11', 12, 12', 36, 36'), die einen Gießraum (13) begrenzen, und ein Gießrohr (3, 39, 50) aus feuerfestem Material, das mit seinem oberen Ende mit einem Behälter verbunden ist, in dem sich Flüssigmetall befindet, und dessen unteres Ende das Flüssigmetall in den Gießraum (13) lenkt, dadurch gekennzeichnet, daß das genannte Gießrohr (3, 39, 50) dem Typ gemäß Anspruch 1 entspricht.
  8. Stranggußanlage nach Anspruch 7, dadurch gekennzeichnet, daß sie eine Abdeckung (29) aufweist, die den Gießraum (13) abdeckt, wobei die Abdeckung (29) mit zumindest einer Öffnung (31, 31') versehen ist, über welche Heizmittel, wie z.B. ein Brenner (32, 32'), eingeführt und in Richtung einer der Öffnungen (17, 17') des Gießrohrs (3, 39, 50) ausgerichtet werden können.
  9. Stranggußanlage nach Anspruch 8, dadurch gekennzeichnet, daß sie Mittel (66, 66') zum Einbringen von Zusatzelementen, von Meßinstrumenten bzw. Mitteln zur Entnahme von Proben des Flüssigmetalls im Inneren des Endteils des Gießrohrs (3, 39, 50) aufweist, und daß die Mittel (66, 66') durch die Abdeckung (29) hindurchführen.
  10. Stranggußanlage nach einem der Ansprüche 7 bis 9, dadurch gekennzeichnet, daß die Abdeckung (29) fest mit den Mitteln (6,8) zur Befestigung des Stutzens (4) am Ausgangsgießrohr (1) des Behälters, der das Flüssigmetall enthält, verbunden ist.
  11. Stranggußanlage nach einem der Ansprüche 7 bis 10, dadurch gekennzeichnet, daß sie einen Korb (52) aufweist, der mit Ausgangsöffnungen (57, 57', 58, 58', 59, 59', 60, 61, 62, 63, 64, 65) für das Flüssigmetall versehen ist und den Endteil des Gießrohrs (3, 39, 50) umschließt.
  12. Stranggußanlage nach einem der Ansprüche 7 bis 11, dadurch gekennzeichnet, daß sie für den Strangguß von Brammen geeignet ist.
  13. Stranggußanlage nach einem der Ansprüche 6 bis 11, dadurch gekennzeichnet, daß sie für den Strangguß von Bändern direkt aus dem Flüssigmetall geeignet ist.
  14. Stranggußanlage nach Anspruch 13, dadurch gekennzeichnet, daß sie aus einer Gießanlage zum Gießen zwischen zwei Walzen besteht.
EP96402272A 1995-11-23 1996-10-25 Giessrohr zum Einleiten eines flüssigen Metalles in einer Stranggiesskokille zum Giessen metallischer Produkte mit diesem ausgerüstete Stranggiessvorrichtung Expired - Lifetime EP0775543B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9513903 1995-11-23
FR9513903A FR2741555B1 (fr) 1995-11-23 1995-11-23 Busette pour l'introduction d'un metal liquide dans une lingotiere de coulee continue de produits metalliques, et installation de coulee continue de produits metalliques equipees d'une telle busette

Publications (2)

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EP0775543A1 EP0775543A1 (de) 1997-05-28
EP0775543B1 true EP0775543B1 (de) 1999-06-16

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US (1) US5794682A (de)
EP (1) EP0775543B1 (de)
JP (1) JPH09174209A (de)
KR (1) KR970025783A (de)
CN (1) CN1068806C (de)
AT (1) ATE181264T1 (de)
AU (1) AU702930B2 (de)
BR (1) BR9605674A (de)
CA (1) CA2190340A1 (de)
CZ (1) CZ286250B6 (de)
DE (1) DE69602906T2 (de)
DK (1) DK0775543T3 (de)
ES (1) ES2133188T3 (de)
FR (1) FR2741555B1 (de)
GR (1) GR3030845T3 (de)
PL (1) PL182099B1 (de)
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RU (1) RU2168391C2 (de)
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BR112014023803B1 (pt) * 2012-03-28 2022-05-10 Arcelormittal Investigación Y Desarrollo Sl Equipamento de fundição contínua e processo de fundição contínua de um metal líquido
KR102080604B1 (ko) * 2014-06-11 2020-02-24 아르베디 스틸 엔지니어링 에스.피.에이. 높은 질량 유량 분배를 위한 얇은 슬래브 노즐
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DE69602906T2 (de) 2000-01-13
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RO118058B1 (ro) 2003-01-30
CA2190340A1 (fr) 1997-05-24
UA41999C2 (uk) 2001-10-15
AU702930B2 (en) 1999-03-11
FR2741555B1 (fr) 1997-12-26
DK0775543T3 (da) 2000-01-17
PL182099B1 (pl) 2001-11-30
US5794682A (en) 1998-08-18
BR9605674A (pt) 1998-08-18
CZ344396A3 (en) 1997-06-11
TW320577B (de) 1997-11-21
ZA969706B (en) 1997-06-12
SK281997B6 (sk) 2001-10-08
AU7045396A (en) 1997-05-29
RU2168391C2 (ru) 2001-06-10
CN1068806C (zh) 2001-07-25
ATE181264T1 (de) 1999-07-15
FR2741555A1 (fr) 1997-05-30
KR970025783A (ko) 1997-06-24
CN1157196A (zh) 1997-08-20
GR3030845T3 (en) 1999-11-30
EP0775543A1 (de) 1997-05-28
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SK146496A3 (en) 1998-02-04
PL317147A1 (en) 1997-05-26

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