EP2444177A1 - Pouring tube for liquid metal - Google Patents

Pouring tube for liquid metal Download PDF

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Publication number
EP2444177A1
EP2444177A1 EP10188179A EP10188179A EP2444177A1 EP 2444177 A1 EP2444177 A1 EP 2444177A1 EP 10188179 A EP10188179 A EP 10188179A EP 10188179 A EP10188179 A EP 10188179A EP 2444177 A1 EP2444177 A1 EP 2444177A1
Authority
EP
European Patent Office
Prior art keywords
tube
transverse plane
casting
volume
threshold distance
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.)
Withdrawn
Application number
EP10188179A
Other languages
German (de)
French (fr)
Inventor
Damien Delsine
Mariano Collura
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.)
Vesuvius Group SA
Original Assignee
Vesuvius Group SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Vesuvius Group SA filed Critical Vesuvius Group SA
Priority to EP10188179A priority Critical patent/EP2444177A1/en
Priority to TW100137617A priority patent/TWI517913B/en
Priority to CN201180050693.XA priority patent/CN103180068B/en
Priority to AU2011317852A priority patent/AU2011317852B2/en
Priority to JP2013534194A priority patent/JP5960706B2/en
Priority to ES11779094.9T priority patent/ES2488867T3/en
Priority to EP11779094.9A priority patent/EP2629909B1/en
Priority to KR1020137012876A priority patent/KR101802006B1/en
Priority to MX2013004262A priority patent/MX342771B/en
Priority to US13/880,426 priority patent/US9517505B2/en
Priority to ARP110103874A priority patent/AR083486A1/en
Priority to PL11779094T priority patent/PL2629909T3/en
Priority to UAA201303671A priority patent/UA111597C2/en
Priority to PCT/EP2011/005248 priority patent/WO2012052164A1/en
Priority to RU2013122032/02A priority patent/RU2573852C2/en
Priority to CA2811798A priority patent/CA2811798A1/en
Priority to BR112013009377A priority patent/BR112013009377B1/en
Priority to PT117790949T priority patent/PT2629909E/en
Publication of EP2444177A1 publication Critical patent/EP2444177A1/en
Priority to ZA2013/02253A priority patent/ZA201302253B/en
Priority to CL2013000955A priority patent/CL2013000955A1/en
Priority to EG2013040654A priority patent/EG27089A/en
Withdrawn legal-status Critical Current

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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
    • 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
    • B22D41/502—Connection arrangements; Sealing means therefor
    • 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
    • B22D41/56—Means for supporting, manipulating or changing a pouring-nozzle

Definitions

  • the present invention relates to the technical field of continuous casting of liquid metal. It relates in particular to a tube for the flow of liquid metal from a metallurgical vessel.
  • liquid metal casting plant including liquid steel
  • metal is transferred from a first metallurgical vessel to a second container.
  • the metal is transferred from a ladle to a tundish, or from a tundish to casting molds.
  • a tube such as a pocket tube, which is held in abutment against the first container, for example against a control valve disposed on the bottom of this container. container.
  • the present invention is intended to provide a safer casting installation.
  • the upstream part of the tube With the form proposed above for the upstream part of the tube, it is possible to limit the splashing or to make them less dangerous at the moment when the tube which is attached or withdrawn during casting crosses the jet of molten metal.
  • the jet which crosses the tube is oriented downwards on both sides of the tube, which is less dangerous than when the end is flat and thick, even concave, in which case the jet is projected towards the top of the tube and may reach an operator, especially at the level of the face.
  • the upstream portion has surfaces capable of channeling the jet to the downstream portion of the tube.
  • the parts of the jet ricocheting on the inner surface of the upstream part have a high probability of crossing then another part of this surface then to flow to the inside the upstream part, thus avoiding that they are projected outside the tube.
  • the frustoconical volume of alpha angle defines a first exclusion zone, in which there is no wall of the tube, ensuring that the upstream portion is sufficiently flared to collect a large portion of the jet leaving the container.
  • the second volume defined by the trapezoid whose sides form the beta angle ensures on the one hand that the upstream part is not too flared, in which case the parts of the jet bouncing inside the upstream part would risk to be projected to the outside of the tube, on the other hand that the outer surface of the upstream portion does not have a projection intersecting the jet, likely to ricochet the metal to the top of the tube.
  • the width of the upper end and the second volume are defined as a function of the outlet diameter of the jet in the downstream part, which is particularly interesting. Indeed, the value of these parameters is defined more precisely because it turns out that the narrower the jet, the more one must have a limited width and volume, and vice versa.
  • the upstream and downstream directions are defined with reference to the direction of flow of the liquid. Furthermore, it is understood that the axial direction of the tube is coincident with the direction of gravity when the tube is, in the necked position, bearing against the container. It is also understood that the expression "the upstream part is included inside a volume” means that the material delimiting the tube, namely a refractory material, is located inside this volume. The inner surface of the tube is designated by the surface delimiting the casting channel of the tube. Note that the tube can be attached directly against the container, or indirectly, when it is attached to an integral intermediate piece of the container. Note also that the upper end of the tube is a connecting end of the tube to the container, which corresponds to the top of the tube in the axial direction.
  • the invention also relates to an assembly of a tube as defined above and a metal frame for receiving the upper end of the tube.
  • the metal frame comprises a receiving housing of the upper end of the tube, the housing having a bottom extending substantially in the transverse direction, the width in the radial direction is less than half the outlet diameter of the tube.
  • the metal frame is attached to the metallurgical vessel, the frame including a seal with the vessel.
  • This metal frame is for example reported below a valve regulating the casting carried by the container. It is particularly interesting to report the tube on such a metal frame rather than directly on the control valve, as this keeps the tube in the casting position during movement of a movable plate of the valve.
  • the invention further relates to a metal frame for an assembly as defined above, for receiving a tube for the flow of liquid metal.
  • the container 18 is a distribution basin and the tube 10 a jet protection tube for transferring the metal from the distributor 18 to a continuous casting mold (for example a billet mold; not shown in the figures).
  • the tube 10 delimits a pouring channel 12, having a casting axis X, coinciding with the vertical direction Z when the tube is in the casting position, against the container 18.
  • the tube 10 comprises a downstream portion 14, disposed on the side d where the liquid metal comes out, and an upstream part 16, disposed on the side from which the liquid metal enters the tube, on the side of the container 18.
  • the downstream portion 14 is cylindrical, its inner surface and its outer surface each having as a guide curve a circle whose center is on the casting axis and for a straight line directing the casting axis X.
  • the inner surface of the downstream part, delimiting the pouring channel 12, has an inside diameter D out , called output diameter.
  • the diameter D out is between 20 and 50 mm (millimeters), for example around 25 mm.
  • the outer diameter may be between 50 and 90 mm, for example close to 60 mm.
  • the upstream portion 16 is defined as the portion of the tube 10 between an upper transverse plane P sup and a lower transverse plane P inf .
  • the upper transverse plane P sup corresponds to the transverse plane tangential to the upper end 20 of the tube. This end 20 corresponds to the top of the tube 10, it is intended to be connected to the container 18, directly or via a valve or a metal frame.
  • the lower transverse plane P inf is a plane parallel to the plane P sup and lying at a distance L from the upper transverse plane P sup .
  • the distance L is said threshold distance, it has a dimension greater than four times the exit diameter D out (L ⁇ 4xD out), preferably about 5 times (L ⁇ 5xD out). It will be understood that the transverse planes P inf and P sup are parallel planes perpendicular to the casting axis X.
  • the upstream portion 16 is further flared.
  • the upper end 20 of the upstream portion has a generally convex shape in the axial direction X. It has a surface 20a of intersection with the upper transverse plane P sup , visible on the figure 4a .
  • the width e of the surface 20a in the radial direction Y is less than half the output diameter D out (e ⁇ 0.5 ⁇ D out ). This width e can be close to 0 when the vertex is extremely thin and the intersection surface 20a corresponds almost to a circle, or be larger when the apex is a little wider, as illustrated by the apex 20 'of the figure 4b , for which the intersection surface 20 'has the shape of a ring of thickness e in the radial direction Y.
  • the upstream part is included inside a first volume, corresponding to the complementary part of a frustoconical volume of revolution V 1 , illustrated in particular on the figure 2 .
  • This frustoconical volume of revolution V 1 has its axis axis X casting and its generator forms an angle alpha ( ⁇ ) greater than 5 ° with the casting axis X.
  • the small base 22 of the frustoconical volume V 1 corresponds to the intersection surface of the lower transverse plane P inf with the casting channel 12.
  • the angle alpha is more precisely between 5 and 15 °, preferably between 5 and 10 °, in this example close to 7 °.
  • the upstream part 16 is furthermore included inside a second volume V 2 illustrated in FIG. figure 2 .
  • the large base 28 of the trapezium 24 is in the lower transverse plane P inf , and the two nonparallel sides 30, 32 of the trapezium 24 together form a beta angle ( ⁇ ), visible on the figure 3 .
  • This beta angle is less than 30 °. More precisely, it is between 10 and 30 °, preferably between 15 and 25 °, and in this example close to 20 °.
  • the shape of the upstream part 16 makes it possible to considerably limit the splashing when the tube 10 is returned or withdrawn without stopping the casting illustrated by the jet 34.
  • the few splashes are directed downwards at a slight angle. incidence, which limits the risks of reaching an operator or damaging the installation.
  • the tube 10 may be attached directly to the container 18, for example fitted on a casting element such as a collecting nozzle 36 or on a control valve carried by the container 18.
  • the tube 10 is received by a metal frame 38 for receiving the upper end 20 of the tube.
  • the metal frame 38 comprises a housing 40 for receiving the upper end 20 of the tube, the housing having a horizontal bottom, extending substantially in the transverse direction Y, and whose width in the radial direction is less than half the diameter D out of exit, so as to receive and position the end 20 of the tube.
  • the housing 40 has a flared wall, of substantially complementary shape to the outer surface of the volume V 2 .
  • This frame 38 ' also has a housing 40' for receiving the tube, provided with a horizontal bottom 42 ', having a width complementary to the width of the top 20 of the tube, and a flared wall 44' of substantially complementary shape on the outer surface of the volume V 2 .
  • the metal frame 38, 38 ' is attached to the metallurgical vessel 18, the frame including a seal 45 to the vessel.
  • This metal frame is for example attached by a holding device 46 below the collecting nozzle 36, which makes it possible to standardize the connection between the tube 10 and the collecting nozzle 36.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Continuous Casting (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Tires In General (AREA)
  • Combined Devices Of Dampers And Springs (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

The tube (10) comprises a downstream part (14), and an upstream part (16) that is defined as a part of the tube lying between an upper transverse plane, which is tangent to an upper end of the tube and a lower transverse plane located at a threshold distance from the upper transverse plane. The tube defines a runner (12) having a casting axis and an outlet diameter. The threshold distance has a dimension, which is five times greater than the outlet diameter. The upstream part is flared so that its upper end has a general convex form in an axial direction. The tube (10) comprises a downstream part (14), and an upstream part (16) that is defined as a part of the tube lying between an upper transverse plane, which is tangent to an upper end of the tube and a lower transverse plane located at a threshold distance from the upper transverse plane. The tube defines a runner (12) having a casting axis and an outlet diameter. The threshold distance has a dimension, which is five times greater than the outlet diameter. The upstream part is flared so that its upper end has a general convex form in an axial direction and has a surface of intersection with the upper transverse plane of which a width in a radial direction is less than the half of the outlet diameter. The upstream part is included within: a first volume corresponding to a complementary part of a rotating tapered volume having casting axis, where a generator of the complementary part forms an alpha angle (alpha ) of 7[deg] with the casting axis; and a second volume, which is bounded by a rotating surface generated by an isosceles trapeze rotating around the casting axis. A small base (22) of the tapered volume corresponds to the surface of intersection of the transverse plane with the runner. A small base of the trapeze is present in the upper transverse plane. A center of the upper end of the tube and a width for dimension are equal to half of the outlet diameter. A large base of the trapeze is located in the lower transverse plane, and the two non-parallel sides of the trapeze form assembly at a beta angle (beta ) of 20[deg] . Independent claims are included for: (1) an assembly including a tube and a metal frame for receiving an upper end of a tube; and (2) a metal frame.

Description

La présente invention concerne le domaine technique de la coulée continue de métal liquide. Elle se rapporte en particulier à un tube pour l'écoulement de métal liquide depuis un récipient métallurgique.The present invention relates to the technical field of continuous casting of liquid metal. It relates in particular to a tube for the flow of liquid metal from a metallurgical vessel.

On connaît dans l'état de la technique une installation de coulée de métal liquide, notamment d'acier liquide, dans laquelle on transfère du métal depuis un premier récipient métallurgique vers un second récipient. Par exemple, on transfère le métal depuis une poche de coulée vers un répartiteur, ou bien depuis un répartiteur vers des moules de coulée. Pour le transfert de liquide entre les deux récipients, on utilise en général un tube, tel qu'un tube de poche, que l'on maintient en appui contre le premier récipient, par exemple contre une valve de régulation disposée sur le fond de ce récipient.It is known in the state of the art a liquid metal casting plant, including liquid steel, in which metal is transferred from a first metallurgical vessel to a second container. For example, the metal is transferred from a ladle to a tundish, or from a tundish to casting molds. For the transfer of liquid between the two containers, use is generally made of a tube, such as a pocket tube, which is held in abutment against the first container, for example against a control valve disposed on the bottom of this container. container.

Généralement lorsqu'on rapporte le tube de coulée contre le récipient, la coulée est arrêtée. Toutefois, il arrive que l'on rapporte ou retire le tube au cours de la coulée de métal, par exemple pour éviter un durcissement du métal dû à l'arrêt de la coulée, ou encore dans le cas où l'on utilise des plaques de régulation, sans fermeture possible.Generally, when pouring the pour tube against the container, the casting is stopped. However, it sometimes happens that the tube is brought back or removed during the pouring of metal, for example to prevent hardening of the metal due to the stoppage of the casting, or in the case where plates are used. regulating, without closing possible.

Or, il est risqué de rapporter ou retirer le tube en cours de coulée, car les éclaboussures du jet peuvent blesser un opérateur.However, it is risky to bring back or withdraw the tube during casting because splashing of the jet can hurt an operator.

La présente invention a notamment pour but de proposer une installation de coulée plus sûre.The present invention is intended to provide a safer casting installation.

A cet effet, l'invention a notamment pour objet un tube pour l'écoulement de métal liquide depuis un récipient métallurgique, le tube délimitant un canal de coulée ayant un axe de coulée, le tube comprenant une partie aval, dans laquelle le canal de coulée présente un diamètre appelé diamètre de sortie, et une partie amont, que l'on définit comme la partie du tube se trouvant entre un plan transversal supérieur, tangent à l'extrémité supérieure du tube, et un plan transversal inférieur, se trouvant à une distance du plan transversal supérieur dite distance seuil, la distance seuil ayant une dimension supérieure à quatre fois le diamètre de sortie, la partie amont étant évasée. Le tube étant configurée de telle sorte que :

  • son extrémité supérieure a une forme générale convexe dans la direction axiale et présente une surface d'intersection avec le plan transversal supérieur dont la largeur (e) dans la direction radiale est inférieure à la moitié du diamètre de sortie,
  • la partie amont est incluse à l'intérieur d'un premier volume correspondant à la partie complémentaire d'un volume tronconique de révolution ayant pour axe l'axe de coulée et dont la génératrice forme un angle alpha (α) supérieur à 5° avec l'axe de coulée, la petite base du volume tronconique correspondant à la surface d'intersection du plan transversal inférieur avec le canal de coulée,
  • la partie amont est incluse à l'intérieur d'un second volume, délimité par une surface de révolution engendrée par un trapèze isocèle tournant autour de l'axe de coulée, la petite base du trapèze se trouvant dans le plan transversal supérieur, ayant pour centre le centre de l'extrémité supérieure du tube et pour dimension une largeur égale à la moitié du diamètre de sortie, la grande base du trapèze se trouvant dans le plan transversal inférieur, et les deux côtés non parallèles du trapèze formant ensemble un angle bêta (β) inférieur à 30°.
For this purpose, the subject of the invention is in particular a tube for the flow of liquid metal from a metallurgical vessel, the tube defining a pouring channel having a casting axis, the tube comprising a downstream portion, in which the flow channel casting has a diameter called exit diameter, and an upstream portion, which is defined as the portion of the tube located between an upper transverse plane, tangential to the upper end of the tube, and a lower transverse plane, located at a distance from the upper transverse plane said threshold distance, the threshold distance having a dimension greater than four times the output diameter, the upstream portion being flared. The tube being configured so that:
  • its upper end has a generally convex shape in the axial direction and has an intersection surface with the upper transverse plane whose width (e) in the radial direction is less than half the output diameter,
  • the upstream part is included inside a first volume corresponding to the complementary part of a frustoconical volume of revolution having as axis the casting axis and whose generatrix forms an angle alpha (α) greater than 5 ° with the casting axis, the small base of the frustoconical volume corresponding to the intersection surface of the lower transverse plane with the pouring channel,
  • the upstream part is included inside a second volume, delimited by a surface of revolution generated by an isosceles trapezoid rotating around the casting axis, the small base of the trapezium being in the upper transverse plane, having as its centers the center of the upper end of the tube and for dimension a width equal to half of the output diameter, the large base of the trapezium being in the lower transverse plane, and the two non-parallel sides of the trapezoid together forming a beta angle (β) less than 30 °.

Grâce à la forme proposée ci-dessus pour la partie amont du tube, on peut limiter les éclaboussures ou les rendre moins dangereuses au moment où le tube qui est rapporté ou retiré en cours de coulée croise le jet de métal liquide. En particulier, grâce à la forme convexe et à la largeur réduite de l'extrémité supérieure, le jet qui croise le tube est orienté vers le bas de part et d'autre du tube, ce qui est moins dangereux que lorsque l'extrémité est plate et épaisse, voire concave, auxquels cas le jet est projeté vers le haut du tube et risque d'atteindre un opérateur, tout particulièrement au niveau du visage. En outre, grâce à la longueur relativement importante de la partie évasée et au fait qu'elle se trouve dans un certain volume, la partie amont présente des surfaces susceptibles de canaliser le jet vers la partie aval du tube. En effet, grâce au volume proposé ci-dessus pour la partie amont évasée, les parties du jet qui ricochent sur la surface interne de la partie amont ont de fortes probabilités de croiser ensuite une autre partie de cette surface puis de s'écouler à l'intérieur de la partie amont, évitant ainsi qu'elles soient projetées à l'extérieur du tube. En particulier, le volume tronconique d'angle alpha définit une première zone d'exclusion, dans laquelle il n'y a aucune paroi du tube, garantissant que la partie amont est suffisamment évasée pour pouvoir recueillir une partie importante du jet sortant du récipient. En outre, le second volume défini par le trapèze dont les côtés forment l'angle bêta garantit d'une part que la partie amont n'est pas trop évasée, auquel cas les parties du jet rebondissant à l'intérieur de la partie amont risqueraient d'être projetées vers l'extérieur du tube, d'autre part que la surface extérieure de la partie amont ne présente pas de saillie croisant le jet, susceptible de faire ricocher le métal vers le haut du tube.With the form proposed above for the upstream part of the tube, it is possible to limit the splashing or to make them less dangerous at the moment when the tube which is attached or withdrawn during casting crosses the jet of molten metal. In particular, thanks to the convex shape and the reduced width of the upper end, the jet which crosses the tube is oriented downwards on both sides of the tube, which is less dangerous than when the end is flat and thick, even concave, in which case the jet is projected towards the top of the tube and may reach an operator, especially at the level of the face. In addition, due to the relatively large length of the flared portion and the fact that it is in a certain volume, the upstream portion has surfaces capable of channeling the jet to the downstream portion of the tube. Indeed, thanks to the volume proposed above for the flared upstream part, the parts of the jet ricocheting on the inner surface of the upstream part have a high probability of crossing then another part of this surface then to flow to the inside the upstream part, thus avoiding that they are projected outside the tube. In particular, the frustoconical volume of alpha angle defines a first exclusion zone, in which there is no wall of the tube, ensuring that the upstream portion is sufficiently flared to collect a large portion of the jet leaving the container. In addition, the second volume defined by the trapezoid whose sides form the beta angle ensures on the one hand that the upstream part is not too flared, in which case the parts of the jet bouncing inside the upstream part would risk to be projected to the outside of the tube, on the other hand that the outer surface of the upstream portion does not have a projection intersecting the jet, likely to ricochet the metal to the top of the tube.

On notera que la largeur de l'extrémité supérieure et que le second volume sont définis en fonction du diamètre de sortie du jet dans la partie aval, ce qui est particulièrement intéressant. En effet, la valeur de ces paramètres est définie de façon plus précise car il se trouve que plus le jet est étroit, plus l'on doit avoir une largeur et un volume restreints, et inversement.It will be noted that the width of the upper end and the second volume are defined as a function of the outlet diameter of the jet in the downstream part, which is particularly interesting. Indeed, the value of these parameters is defined more precisely because it turns out that the narrower the jet, the more one must have a limited width and volume, and vice versa.

On comprend que les directions amont et aval sont définies en référence au sens de l'écoulement du liquide. Par ailleurs, on comprend que la direction axiale du tube est confondue avec la direction de la gravité lorsque le tube est, en position de couilée, en appui contre le récipient. On comprend également que l'expression « la partie amont est incluse à l'intérieur d'un volume » signifie que la matière délimitant le tube, à savoir un matériau réfractaire, se trouve à l'intérieur de ce volume. On désigne la surface intérieure du tube par la surface délimitant le canal de coulée du tube. On notera que le tube peut être rapporté directement contre le récipient, ou bien indirectement, lorsqu'il est rapporté sur une pièce intermédiaire solidaire du récipient. On notera par ailleurs que l'extrémité supérieure du tube est une extrémité de raccord du tube au récipient, qui correspond au sommet du tube dans la direction axiale.It is understood that the upstream and downstream directions are defined with reference to the direction of flow of the liquid. Furthermore, it is understood that the axial direction of the tube is coincident with the direction of gravity when the tube is, in the necked position, bearing against the container. It is also understood that the expression "the upstream part is included inside a volume" means that the material delimiting the tube, namely a refractory material, is located inside this volume. The inner surface of the tube is designated by the surface delimiting the casting channel of the tube. Note that the tube can be attached directly against the container, or indirectly, when it is attached to an integral intermediate piece of the container. Note also that the upper end of the tube is a connecting end of the tube to the container, which corresponds to the top of the tube in the axial direction.

Le tube peut en outre comporter l'une ou plusieurs des caractéristiques suivantes, prises seules ou en combinaison les unes avec les autres.

  • La distance seuil a une dimension voisine de cinq fois le diamètre de sortie.
  • L'angle alpha est compris entre 5 et 15°, de préférence entre 5 et 10°, de préférence voisin de 7°.
  • L'angle bêta est compris entre 10 et 30°, de préférence entre 15 et 25°, de préférence voisin de 20°.
The tube may further comprise one or more of the following features, taken alone or in combination with each other.
  • The threshold distance has a dimension close to five times the exit diameter.
  • The angle alpha is between 5 and 15 °, preferably between 5 and 10 °, preferably close to 7 °.
  • The beta angle is between 10 and 30 °, preferably between 15 and 25 °, preferably close to 20 °.

L'invention a également pour objet un ensemble d'un tube tel que défini ci-dessus et d'un cadre métallique de réception de l'extrémité supérieure du tube.The invention also relates to an assembly of a tube as defined above and a metal frame for receiving the upper end of the tube.

De préférence, le cadre métallique comprend un logement de réception de l'extrémité supérieure du tube, le logement présentant un fond s'étendant sensiblement dans la direction transversale, dont la largeur dans la direction radiale est inférieure à la moitié du diamètre de sortie du tube.Preferably, the metal frame comprises a receiving housing of the upper end of the tube, the housing having a bottom extending substantially in the transverse direction, the width in the radial direction is less than half the outlet diameter of the tube.

De préférence également, le cadre métallique est rapporté sur le récipient métallurgique, le cadre comprenant un joint d'étanchéité avec le récipient. Ce cadre métallique est par exemple rapporté en-dessous d'une valve de régulation de la coulée portée par le récipient. Il est particulièrement intéressant de rapporter le tube sur un tel cadre métallique plutôt que directement sur la valve de régulation, car cela permet de garder le tube en position de coulée au cours du déplacement d'une plaque mobile de la valve.Also preferably, the metal frame is attached to the metallurgical vessel, the frame including a seal with the vessel. This metal frame is for example reported below a valve regulating the casting carried by the container. It is particularly interesting to report the tube on such a metal frame rather than directly on the control valve, as this keeps the tube in the casting position during movement of a movable plate of the valve.

L'invention a par ailleurs pour objet un cadre métallique pour un ensemble tel que défini ci-dessus, pour la réception d'un tube pour l'écoulement de métal liquide.The invention further relates to a metal frame for an assembly as defined above, for receiving a tube for the flow of liquid metal.

L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux dessins dans lesquels :

  • la figure 1 est une vue en coupe axiale d'un tube selon un mode de réalisation,
  • la figure 2 est une vue agrandie de la partie amont du tube de la figure 1,
  • la figure 3 est une vue agrandie de la figure 2,
  • les figures 4a et 4b sont des vues similaires à celle de la figure 3, illustrant deux types d'extrémités du tube,
  • la figure 5 est une vue en coupe axiale d'une partie d'une installation de coulée et du tube de la figure 1, au moment où il est rapporté sur le récipient métallurgique,
  • la figure 6 est une vue en perspective de dessous d'un cadre métallique recevant le tube de la figure 1, et
  • la figure 7 est une vue en perspective de dessous d'une partie d'une installation de coulée et du tube de la figure 1, au moment où il est rapporté sur le cadre métallique de la figure 6.
The invention will be better understood on reading the description which follows, given solely by way of example and with reference to the drawings in which:
  • the figure 1 is an axial sectional view of a tube according to one embodiment,
  • the figure 2 is an enlarged view of the upstream part of the tube of the figure 1 ,
  • the figure 3 is an enlarged view of the figure 2 ,
  • the Figures 4a and 4b are views similar to that of the figure 3 , illustrating two types of tube ends,
  • the figure 5 is an axial sectional view of a portion of a casting installation and the tube of the figure 1 when it is returned to the metallurgical vessel,
  • the figure 6 is a perspective view from below of a metal frame receiving the tube from the figure 1 , and
  • the figure 7 is a perspective view from below of a portion of a casting installation and the tube of the figure 1 , at the moment it is attached to the metal frame of the figure 6 .

On a représenté sur la figure 1 un tube 10 pour l'écoulement de métal liquide depuis un récipient métallurgique 18 dont une partie est visible sur la figure 5. Dans cet exemple, le récipient 18 est un bassin répartiteur et le tube 10 un tube de protection de jet permettant de transférer le métal depuis le répartiteur 18 vers une lingotière de coulée continue (par exemple un moule pour billettes ; non représenté sur les figures).We have shown on the figure 1 a tube 10 for the flow of liquid metal from a metallurgical vessel 18, a portion of which is visible on the figure 5 . In this example, the container 18 is a distribution basin and the tube 10 a jet protection tube for transferring the metal from the distributor 18 to a continuous casting mold (for example a billet mold; not shown in the figures).

Le tube 10 délimite un canal de coulée 12, ayant un axe de coulée X, confondu avec la direction verticale Z lorsque le tube est en position de coulée, contre le récipient 18. Le tube 10 comprend une partie aval 14, disposée du côté d'où le métal liquide ressort, et une partie amont 16, disposée du côté d'où le métal liquide entre dans le tube, du côté du récipient 18.The tube 10 delimits a pouring channel 12, having a casting axis X, coinciding with the vertical direction Z when the tube is in the casting position, against the container 18. The tube 10 comprises a downstream portion 14, disposed on the side d where the liquid metal comes out, and an upstream part 16, disposed on the side from which the liquid metal enters the tube, on the side of the container 18.

La partie aval 14 est cylindrique, sa surface intérieure et sa surface extérieure ayant chacune pour courbe directrice un cercle dont le centre est sur l'axe de coulée et pour droite directrice l'axe de coulée X. La surface intérieure de la partie aval, délimitant le canal de coulée 12, présente un diamètre intérieur Dout, appelé diamètre de sortie. De préférence, le diamètre Dout est compris entre 20 et 50 mm (millimètres), par exemple voisin de 25 mm. Le diamètre extérieur peut être compris entre 50 et 90 mm, par exemple voisin de 60 mm.The downstream portion 14 is cylindrical, its inner surface and its outer surface each having as a guide curve a circle whose center is on the casting axis and for a straight line directing the casting axis X. The inner surface of the downstream part, delimiting the pouring channel 12, has an inside diameter D out , called output diameter. Preferably, the diameter D out is between 20 and 50 mm (millimeters), for example around 25 mm. The outer diameter may be between 50 and 90 mm, for example close to 60 mm.

La partie amont 16 est définie comme la partie du tube 10 se trouvant entre un plan transversal supérieur Psup et un plan transversal inférieur Pinf. Le plan transversal supérieur Psup correspond au plan transversal tangent à l'extrémité supérieure 20 du tube. Cette extrémité 20 correspond au sommet du tube 10, elle est destinée à être raccordée au récipient 18, directement ou par l'intermédiaire d'une valve ou d'un cadre métallique. Le plan transversal inférieur Pinf est un plan parallèle au plan Psup et se trouvant à une distance L du plan transversal supérieur Psup. La distance L est dite distance seuil, elle a une dimension supérieure à quatre fois le diamètre de sortie Dout (L ≥ 4xDout), de préférence voisine de 5 fois (L ≊ 5xDout). On comprend que les plans transversaux Pinf et Psup sont des plans parallèles entre eux, perpendiculaires à l'axe de coulée X.The upstream portion 16 is defined as the portion of the tube 10 between an upper transverse plane P sup and a lower transverse plane P inf . The upper transverse plane P sup corresponds to the transverse plane tangential to the upper end 20 of the tube. This end 20 corresponds to the top of the tube 10, it is intended to be connected to the container 18, directly or via a valve or a metal frame. The lower transverse plane P inf is a plane parallel to the plane P sup and lying at a distance L from the upper transverse plane P sup . The distance L is said threshold distance, it has a dimension greater than four times the exit diameter D out (L ≥ 4xD out), preferably about 5 times (L ≊ 5xD out). It will be understood that the transverse planes P inf and P sup are parallel planes perpendicular to the casting axis X.

La partie amont 16 est par ailleurs évasée.The upstream portion 16 is further flared.

L'extrémité supérieure 20 de la partie amont a une forme générale convexe dans la direction axiale X. Elle présente une surface 20a d'intersection avec le plan transversal supérieur Psup, visible sur la figure 4a. La largeur e de la surface 20a dans la direction radiale Y est inférieure à la moitié du diamètre de sortie Dout (e ≤ 0,5xDout). Cette largeur e peut être voisine de 0 lorsque le sommet est extrêmement fin et que la surface d'intersection 20a correspond quasiment à un cercle, ou être plus importante lorsque le sommet est un peu plus large, comme illustré par le sommet 20' de la figure 4b, pour lequel la surface d'intersection 20'a a la forme d'un anneau d'épaisseur e dans la direction radiale Y.The upper end 20 of the upstream portion has a generally convex shape in the axial direction X. It has a surface 20a of intersection with the upper transverse plane P sup , visible on the figure 4a . The width e of the surface 20a in the radial direction Y is less than half the output diameter D out (e ≤ 0.5 × D out ). This width e can be close to 0 when the vertex is extremely thin and the intersection surface 20a corresponds almost to a circle, or be larger when the apex is a little wider, as illustrated by the apex 20 'of the figure 4b , for which the intersection surface 20 'has the shape of a ring of thickness e in the radial direction Y.

La partie amont est incluse à l'intérieur d'un premier volume, correspondant à la partie complémentaire d'un volume tronconique de révolution V1, illustré notamment sur la figure 2. Ce volume tronconique de révolution V1 a pour axe l'axe de coulée X et sa génératrice forme un angle alpha (α) supérieur à 5° avec l'axe de coulée X. La petite base 22 du volume tronconique V1 correspond à la surface d'intersection du plan transversal inférieur Pinf avec le canal de coulée 12. L'angle alpha est plus précisément compris entre 5 et 15°, de préférence entre 5 et 10°, dans cet exemple voisin de 7°.The upstream part is included inside a first volume, corresponding to the complementary part of a frustoconical volume of revolution V 1 , illustrated in particular on the figure 2 . This frustoconical volume of revolution V 1 has its axis axis X casting and its generator forms an angle alpha (α) greater than 5 ° with the casting axis X. The small base 22 of the frustoconical volume V 1 corresponds to the intersection surface of the lower transverse plane P inf with the casting channel 12. The angle alpha is more precisely between 5 and 15 °, preferably between 5 and 10 °, in this example close to 7 °.

La partie amont 16 est par ailleurs incluse à l'intérieur d'un second volume V2 illustré sur la figure 2. Le volume V2 est délimité par une surface de révolution engendrée par un trapèze isocèle 24 tournant autour de l'axe de coulée X, la petite base 26 du trapèze se trouvant dans le plan transversal supérieur Psup, ayant pour centre le centre C de l'extrémité supérieure 20 du tube et pour dimension une largeur E égale à la moitié du diamètre de sortie Dout (E = 0,5xDout). La grande base 28 du trapèze 24 se trouve dans le plan transversal inférieur Pinf, et les deux côtés non parallèles 30, 32 du trapèze 24 forment ensemble un angle bêta (β), visible sur la figure 3. Cet angle bêta est inférieur à 30°. Plus précisément, il est compris entre 10 et 30°,de préférence entre 15 et 25°, et dans cet exemple voisin de 20°.The upstream part 16 is furthermore included inside a second volume V 2 illustrated in FIG. figure 2 . The volume V 2 is delimited by a surface of revolution generated by a trapezium isosceles 24 rotating about the casting axis X, the small base 26 of the trapezium being in the upper transverse plane P sup , having as center the center C of the upper end 20 of the tube and for dimension a width E equal to half of the output diameter D out (E = 0.5xD out ). The large base 28 of the trapezium 24 is in the lower transverse plane P inf , and the two nonparallel sides 30, 32 of the trapezium 24 together form a beta angle (β), visible on the figure 3 . This beta angle is less than 30 °. More precisely, it is between 10 and 30 °, preferably between 15 and 25 °, and in this example close to 20 °.

Comme on peut le voir sur la figure 5, la forme de la partie amont 16 permet de limiter considérablement les éclaboussures lorsqu'on rapporte ou retire le tube 10 sans arrêter la coulée illustrée par le jet 34. En outre, les quelques éclaboussures sont orientées vers le bas selon un faible angle d'incidence, ce qui limite les risques d'atteindre un opérateur ou d'abîmer l'installation.As can be seen on the figure 5 , the shape of the upstream part 16 makes it possible to considerably limit the splashing when the tube 10 is returned or withdrawn without stopping the casting illustrated by the jet 34. In addition, the few splashes are directed downwards at a slight angle. incidence, which limits the risks of reaching an operator or damaging the installation.

Le tube 10 peut être rapporté directement sur le récipient 18, par exemple emboîté sur un élément de coulée tel qu'une busette collectrice 36 ou sur une valve de régulation portée par le récipient 18. Selon une réalisation particulièrement avantageuse, le tube 10 est reçu par un cadre métallique 38 de réception de l'extrémité supérieure 20 du tube.The tube 10 may be attached directly to the container 18, for example fitted on a casting element such as a collecting nozzle 36 or on a control valve carried by the container 18. In a particularly advantageous embodiment, the tube 10 is received by a metal frame 38 for receiving the upper end 20 of the tube.

Le cadre métallique 38 comprend un logement 40 de réception de l'extrémité supérieure 20 du tube, le logement présentant un fond horizontal, s'étendant sensiblement dans la direction transversale Y, et dont la largeur dans la direction radiale est inférieure à la moitié du diamètre Dout de sortie, de façon à pouvoir recevoir et positionner l'extrémité 20 du tube. Le logement 40 présente un paroi évasée, de forme sensiblement complémentaire à la surface extérieure du volume V2.The metal frame 38 comprises a housing 40 for receiving the upper end 20 of the tube, the housing having a horizontal bottom, extending substantially in the transverse direction Y, and whose width in the radial direction is less than half the diameter D out of exit, so as to receive and position the end 20 of the tube. The housing 40 has a flared wall, of substantially complementary shape to the outer surface of the volume V 2 .

Un autre exemple 38' de cadre métallique est illustré sur les figures 6, 7. Ce cadre 38' présente également un logement 40' de réception du tube, muni d'un fond horizontal 42', ayant une largeur complémentaire de la largeur du sommet 20 du tube, et d'une paroi évasée 44', de forme sensiblement complémentaire à la surface extérieure du volume V2.Another example 38 'of metal frame is illustrated on the Figures 6, 7 . This frame 38 'also has a housing 40' for receiving the tube, provided with a horizontal bottom 42 ', having a width complementary to the width of the top 20 of the tube, and a flared wall 44' of substantially complementary shape on the outer surface of the volume V 2 .

Comme on peut le voir sur les figures, le cadre métallique 38, 38' est rapporté sur le récipient métallurgique 18, le cadre comprenant un joint 45 d'étanchéité avec le récipient. Ce cadre métallique est par exemple rapporté par un dispositif de maintien 46 en-dessous de la busette collectrice 36, ce qui permet de standardiser la connexion entre le tube 10 et la busette collectrice 36.As can be seen in the figures, the metal frame 38, 38 'is attached to the metallurgical vessel 18, the frame including a seal 45 to the vessel. This metal frame is for example attached by a holding device 46 below the collecting nozzle 36, which makes it possible to standardize the connection between the tube 10 and the collecting nozzle 36.

On notera que l'invention n'est pas limitée aux exemples précédemment décrits.It should be noted that the invention is not limited to the examples described above.

On comprend que le tube 10 et le cadre 38, 38' permettent d'améliorer la sécurité d'une installation de coulée.It will be understood that the tube 10 and the frame 38, 38 'make it possible to improve the safety of a casting installation.

Claims (8)

Tube (10) pour l'écoulement de métal liquide depuis un récipient métallurgique (18), le tube délimitant un canal de coulée (12) ayant un axe de coulée (X), comprenant une partie aval (14), dans laquelle le canal de coulée présente un diamètre appelé diamètre de sortie (Dout), et une partie amont (16), que l'on définit comme la partie du tube se trouvant entre un plan transversal supérieur (Psup), tangent à l'extrémité supérieure (20) du tube, et un plan transversal inférieur (Pinf), se trouvant à une distance (L) du plan transversal supérieur (Psup) dite distance seuil, la distance seuil ayant une dimension supérieure à quatre fois le diamètre de sortie (Dout), la partie amont (16) étant évasée et étant configurée de telle sorte que : - son extrémité supérieure (20, 20') a une forme générale convexe dans la direction axiale (X) et présente une surface (20a, 20'a) d'intersection avec le plan transversal supérieur (Psup) dont la largeur (e) dans la direction radiale (Y) est inférieure à la moitié du diamètre de sortie (Dout), - la partie amont (16) est incluse à l'intérieur d'un premier volume correspondant à la partie complémentaire d'un volume tronconique de révolution (V1) ayant pour axe l'axe de coulée (X) et dont la génératrice forme un angle alpha (α) supérieur à 5° avec l'axe de coulée (X), la petite base (22) du volume tronconique (V1) correspondant à la surface d'intersection du plan transversal inférieur avec le canal de coulée (12), - la partie amont (16) est incluse à l'intérieur d'un second volume (V2), délimité par une surface de révolution engendrée par un trapèze isocèle (24) tournant autour de l'axe de coulée (X), la petite base (26) du trapèze se trouvant dans le plan transversal supérieur (Psup), ayant pour centre le centre (C) de l'extrémité supérieure (20) du tube et pour dimension une largeur (E) égale à la moitié du diamètre de sortie (Dout), la grande base (28) du trapèze se trouvant dans le plan transversal inférieur (Pinf), et les deux côtés non parallèles (30, 32) du trapèze formant ensemble un angle bêta (β) inférieur à 30°. Tube (10) for the flow of liquid metal from a metallurgical vessel (18), the tube defining a pouring channel (12) having a casting axis (X), comprising a downstream portion (14), in which the channel casting has a diameter called output diameter (D out ), and an upstream portion (16), which is defined as the portion of the tube located between an upper transverse plane (P sup ), tangent to the upper end (20) of the tube, and a lower transverse plane (P inf ), at a distance (L) of the upper transverse plane (P sup ) said threshold distance, the threshold distance having a dimension greater than four times the output diameter (D out ), the upstream portion (16) being flared and configured so that: its upper end (20, 20 ') has a generally convex shape in the axial direction (X) and has a surface (20a, 20'a) of intersection with the upper transverse plane (P sup ) whose width (e ) in the radial direction (Y) is less than half the output diameter (D out ), the upstream part (16) is included inside a first volume corresponding to the complementary part of a frustoconical volume of revolution (V 1 ) having as axis the casting axis (X) and whose generator forms an angle alpha (α) greater than 5 ° with the casting axis (X), the small base (22) of the frustoconical volume (V 1 ) corresponding to the intersection surface of the lower transverse plane with the casting channel ( 12) the upstream part (16) is included inside a second volume (V 2 ), delimited by a surface of revolution generated by an isosceles trapezium (24) rotating around the casting axis (X), the small base (26) of the trapezium lying in the upper transverse plane (P sup ), centered on the center (C) of the upper end (20) of the tube and for dimension a width (E) equal to half of the output diameter (D out ), the large base (28) of the trapezium lying in the lower transverse plane (P inf ), and the two non-parallel sides (30, 32) of the trapezoid together forming a lower beta angle (β) at 30 °. Tube selon la revendication précédente, dans lequel la distance seuil (L) a une dimension voisine de 5 fois le diamètre de sortie (Dout).Tube according to the preceding claim, wherein the threshold distance (L) has a dimension close to 5 times the output diameter (D out ). Tube selon l'une quelconque des revendications précédentes, dans lequel l'angle alpha est compris entre 5 et 15°, de préférence voisin de 7°.Tube according to any one of the preceding claims, wherein the angle alpha is between 5 and 15 °, preferably close to 7 °. Tube selon l'une quelconque des revendications précédentes, dans lequel l'angle bêta est compris entre 10 et 30°, de préférence voisin de 20°.Tube according to any one of the preceding claims, in which the beta angle is between 10 and 30 °, preferably close to 20 °. Ensemble d'un tube selon l'une quelconque des revendications précédentes et d'un cadre métallique (38, 38') de réception de l'extrémité supérieure du tube.Assembly of a tube according to any preceding claim and a metal frame (38, 38 ') for receiving the upper end of the tube. Ensemble selon la revendication précédente, dans lequel le cadre métallique comprend un logement (40, 40') de réception de l'extrémité supérieure du tube, le logement présentant un fond s'étendant sensiblement dans la direction transversale, dont la largeur dans la direction radiale est inférieure à la moitié du diamètre de sortie (Dout) du tube.Assembly according to the preceding claim, wherein the metal frame comprises a housing (40, 40 ') for receiving the upper end of the tube, the housing having a bottom extending substantially in the transverse direction, whose width in the direction radial is less than half the output diameter (D out ) of the tube. Ensemble selon l'une quelconque des revendications précédentes, dans lequel le cadre métallique (38, 38') est rapporté sur le récipient métallurgique (18), le cadre comprenant un joint (45) d'étanchéité avec le récipient (18).An assembly according to any one of the preceding claims, wherein the metal frame (38, 38 ') is attached to the metallurgical vessel (18), the frame including a seal (45) sealing with the vessel (18). Cadre métallique (38, 38') pour un ensemble selon l'une quelconque des revendications 5 à 7, pour la réception d'un tube pour l'écoulement de métal liquide.Metal frame (38, 38 ') for an assembly according to any of claims 5 to 7 for receiving a tube for liquid metal flow.
EP10188179A 2010-10-20 2010-10-20 Pouring tube for liquid metal Withdrawn EP2444177A1 (en)

Priority Applications (21)

Application Number Priority Date Filing Date Title
EP10188179A EP2444177A1 (en) 2010-10-20 2010-10-20 Pouring tube for liquid metal
TW100137617A TWI517913B (en) 2010-10-20 2011-10-18 Tube for pouring liquid metal, assembly of a tube and a metal frame and metal frame
PL11779094T PL2629909T3 (en) 2010-10-20 2011-10-19 Tube for pouring liquid metal and assembly of a tube and a metal frame.
PCT/EP2011/005248 WO2012052164A1 (en) 2010-10-20 2011-10-19 Tube for pouring liquid metal, assembly of a tube and a metal frame and metal frame.
JP2013534194A JP5960706B2 (en) 2010-10-20 2011-10-19 Tube for injecting liquid metal, assembly of tube and metal frame, and metal frame
ES11779094.9T ES2488867T3 (en) 2010-10-20 2011-10-19 Tube for pouring liquid metal and tube assembly and metal structure
EP11779094.9A EP2629909B1 (en) 2010-10-20 2011-10-19 Tube for pouring liquid metal and assembly of a tube and a metal frame.
KR1020137012876A KR101802006B1 (en) 2010-10-20 2011-10-19 Tube for pouring liquid metal, assembly of a tube and a metal frame and metal frame
MX2013004262A MX342771B (en) 2010-10-20 2011-10-19 Tube for pouring liquid metal, assembly of a tube and a metal frame and metal frame.
US13/880,426 US9517505B2 (en) 2010-10-20 2011-10-19 Tube for pouring liquid metal, assembly of a tube and a metal frame and metal frame
ARP110103874A AR083486A1 (en) 2010-10-20 2011-10-19 TUBE FOR LIQUID METAL VERTER, TUBE ASSEMBLY AND METAL STRUCTURE FOR THE TUBE ASSEMBLY
CN201180050693.XA CN103180068B (en) 2010-10-20 2011-10-19 Tube for pouring liquid metal, assembly of a tube and a metal frame and metal frame
UAA201303671A UA111597C2 (en) 2010-10-20 2011-10-19 FILLING PIPE, FLUID METAL INSTALLATION ASSEMBLY AND METAL FRAME FOR INSTALLATION OF THE TOP END OF THE FLOW PIPE
AU2011317852A AU2011317852B2 (en) 2010-10-20 2011-10-19 Tube for pouring liquid metal, assembly of a tube and a metal frame and metal frame.
RU2013122032/02A RU2573852C2 (en) 2010-10-20 2011-10-19 Liquid metal casting pipe, assembly of pipe and metal framework and metal framework
CA2811798A CA2811798A1 (en) 2010-10-20 2011-10-19 Tube for pouring liquid metal and assembly of a tube and a metal frame
BR112013009377A BR112013009377B1 (en) 2010-10-20 2011-10-19 pipe for pouring liquid metal from a metallurgical container, assembly of a pipe and a metal frame, and metal frame
PT117790949T PT2629909E (en) 2010-10-20 2011-10-19 Tube for pouring liquid metal and assembly of a tube and a metal frame.
ZA2013/02253A ZA201302253B (en) 2010-10-20 2013-03-26 Tube for pouring liquid metal,assembly of a tube and a metal frame and metal frame
CL2013000955A CL2013000955A1 (en) 2010-10-20 2013-04-09 Tube for pouring liquid metal from a metallurgical container comprising said tube defines a pouring channel that has a pouring axis comprising a downstream part in which the pouring channel has a diameter known as the outlet diameter and an upstream part; and set.
EG2013040654A EG27089A (en) 2010-10-20 2013-04-17 Tube for pouring liquid metal, assembly of a tube and a metal frame and metal frame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10188179A EP2444177A1 (en) 2010-10-20 2010-10-20 Pouring tube for liquid metal

Publications (1)

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EP2444177A1 true EP2444177A1 (en) 2012-04-25

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EP10188179A Withdrawn EP2444177A1 (en) 2010-10-20 2010-10-20 Pouring tube for liquid metal
EP11779094.9A Active EP2629909B1 (en) 2010-10-20 2011-10-19 Tube for pouring liquid metal and assembly of a tube and a metal frame.

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EP11779094.9A Active EP2629909B1 (en) 2010-10-20 2011-10-19 Tube for pouring liquid metal and assembly of a tube and a metal frame.

Country Status (20)

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US (1) US9517505B2 (en)
EP (2) EP2444177A1 (en)
JP (1) JP5960706B2 (en)
KR (1) KR101802006B1 (en)
CN (1) CN103180068B (en)
AR (1) AR083486A1 (en)
AU (1) AU2011317852B2 (en)
BR (1) BR112013009377B1 (en)
CA (1) CA2811798A1 (en)
CL (1) CL2013000955A1 (en)
EG (1) EG27089A (en)
ES (1) ES2488867T3 (en)
MX (1) MX342771B (en)
PL (1) PL2629909T3 (en)
PT (1) PT2629909E (en)
RU (1) RU2573852C2 (en)
TW (1) TWI517913B (en)
UA (1) UA111597C2 (en)
WO (1) WO2012052164A1 (en)
ZA (1) ZA201302253B (en)

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UA111597C2 (en) 2016-05-25
PT2629909E (en) 2014-08-27
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BR112013009377B1 (en) 2018-09-18
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TW201244851A (en) 2012-11-16
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US20130228597A1 (en) 2013-09-05
KR101802006B1 (en) 2017-11-27

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