EP0078760A1 - Variable gate - Google Patents

Variable gate Download PDF

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Publication number
EP0078760A1
EP0078760A1 EP82630073A EP82630073A EP0078760A1 EP 0078760 A1 EP0078760 A1 EP 0078760A1 EP 82630073 A EP82630073 A EP 82630073A EP 82630073 A EP82630073 A EP 82630073A EP 0078760 A1 EP0078760 A1 EP 0078760A1
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EP
European Patent Office
Prior art keywords
cylinders
groove
opening
relative
sealing
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
EP82630073A
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German (de)
French (fr)
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EP0078760B1 (en
Inventor
Georges Mathgen
Charles Pruem
Robert Scherer
Roger Leick
Carlo Heintz
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Arcelor Luxembourg SA
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Arbed SA
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Priority to AT82630073T priority Critical patent/ATE17199T1/en
Publication of EP0078760A1 publication Critical patent/EP0078760A1/en
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Publication of EP0078760B1 publication Critical patent/EP0078760B1/en
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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
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D37/00—Controlling or regulating the pouring of molten metal from a casting melt-holding vessel
    • 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
    • B22D41/08—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like for bottom pouring

Definitions

  • the present invention relates to a tap hole device intended essentially for pouring liquid materials, in particular molten metallic or non-metallic materials, which device has a variable opening, in order to start, stop and adjust the material flow during casting.
  • the tap hole devices known in the metallurgical industry essentially comprise the conventional stopper systems with a stopper or a drawer.
  • the principle of these systems consists in that one enlarges resp. narrows the section of an orifice, removing resp. by gradually bringing an object, eg a plug or a plate, between the orifice and the material to be poured.
  • an object eg a plug or a plate
  • these systems only work well in the open or closed position.
  • the jets are highly dispersed which greatly hampers the quality of the casting. It is therefore useful to provide more efficient tap hole devices.
  • the object of the present invention is therefore to propose a taphole device allowing the start, the precise adjustment of the flow rate and the stopping of the pouring of molten material, by ensuring at all times identical geometric conditions at the outlet of the tap hole.
  • the device must be applicable to the casting of liquid metals and molten non-metallic materials.
  • the device according to the invention which is characterized in that two cylinders (A, B) with parallel axes and movable around their respective axes, have a common contact line and that at least one of the cylinders have a groove, while the other cylinder can be smooth.
  • the groove extends over a portion of the circumference of the cylinder, i.e. that it is oriented perpendicular to the axis and it has a profile and in particular a depth which varies so as to pass through a maximum.
  • the groove may have, according to a preferred embodiment, a pseudo-elliptical profile; one can nevertheless also provide simpler execution profiles, which however goes at the expense of the continuity of the geometry of the jet during the variation of the degree of opening of the taphole, as will be explained below.
  • the device according to the invention comprises means making it possible to drive the two cylinders synchronously, in order to position them so as to obtain the desired degree of opening of the tap hole.
  • means making it possible to drive the two cylinders synchronously, in order to position them so as to obtain the desired degree of opening of the tap hole.
  • the two cylinders with a pinion system and to provide a drive means which can be a simple lever or, in the case of more sophisticated applications, a servo-motor, acting on the one of the two cylinders.
  • means are provided for pressing the two cylinders against one another along their contact line. These means can, for example, be clamping screws. Additional means are also provided for sealing the two cylinders with respect to each other, which means may consist, for example, of a shaping in which one of the cylinders is nested in the other.
  • the main advantage of the device according to the invention obviously lies in the fact that it makes it possible to continuously vary the opening of the tap hole and to make precise adjustments to the poured flow rate.
  • an opening of any geometric shape can be obtained.
  • pseudo-elliptical grooves give a perfectly circular opening.
  • the axis of the orifice does not move.
  • FIG. 1 shows a perspective view of two cylinders each provided with a pseudo-elliptical groove
  • fig. lA, 1B, 1C and 1D showing longitudinal and transverse sections of the same cylinders in different positions
  • fig. 2 shows a perspective view of two cylinders where the grooves have a straight bottom
  • fig. 2A, 2B and 2C showing longitudinal and transverse sections of these cylinders in different positions and the configurations of the openings resulting from these positions
  • FIG. 3 schematically shows a longitudinal section and a cross section of a possible embodiment of the device according to the invention.
  • FIG. 1 shows two cylinders (A and B) which each have a groove (10) in pseudo-elliptical shape. Due to the variation in the profile of these grooves along the circumference of each cylinder, a rotation thereof, eg in the direction of the arrows, leads to a variation of the opening circumscribed by the profile of the superimposed grooves.
  • the position shown in fig. lA will result in maximum opening (01) as the depth of the grooves is greatest at the location of the contact line between the cylinders (A and B).
  • the cylinder (A) being turned counter-clockwise; this will result in the opening (02) of FIG. 1B.
  • Fig. 2 essentially represents the same cylinders as those. shown in fig. 1, with however another embodiment of the groove. This has a simple profile to obtain, since the bottom is straight, as shown in Figs. 2A, 2B and 2C. However, it is easy to see in fig. 2A that in this precise case only the position where the bottoms of the grooves are parallel to each other, there is an opening in the form of a circle, while any other position, such as that shown, in fig. 2B results in an elliptical or oval profile opening.
  • Fig. 2C shows the closed position of the tap hole. Note that the arrows that appear in Figs. 1A, B, C and 2A, B, C indicating the direction of flow of the material to be poured.
  • FIG. 3 there is shown schematically a possible embodiment of the device according to the invention.
  • the cylinders (A, B) each provided with a groove (10) in the form of a pseudo-ellipse, generating in their position as shown, a circular opening (0).
  • the fixing means (1 and 2) of the block (3) which acts as a bearing for the two cylinders.
  • the displacement in synchronous rotation of the two cylinders, in opposite direction with respect to each other, is ensured by the pinions (5).
  • the rotation device which is not shown, can be a lever, a jack, or a servo motor.
  • the pressure means (4) which can be eg clamping screws.
  • the cylinders can be executed either in metal, which will be the case during the casting of non-metallic molten materials, such as sand, slag, rocks, etc. ., in the context of the manufacture of glass, mineral wool or ceramic fibers, either in a refractory material when the device is applied in the casting of liquid metals, and when it is mounted under a casting ladle steelworks, under the hearth of an electric steelmaking or foundry furnace, under the basket-distributor of a continuous casting, or even on the discharge part of a converter.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Circuits Of Receivers In General (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Electrically Operated Instructional Devices (AREA)
  • Nozzles (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Forging (AREA)
  • Vehicle Body Suspensions (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Continuous Casting (AREA)
  • Junction Field-Effect Transistors (AREA)
  • Control Of Eletrric Generators (AREA)
  • Semiconductor Lasers (AREA)
  • Adhesive Tapes (AREA)

Abstract

1. Taphole device for the casting of fused metallic or non-metallic materials comprising two cylinders (A, B) having parallel axes and one common contact line and being rotatable around their axes in opposite directions relative to each other, each of the cylinders (A, B) having one groove (10) with a varying cross section extending each along a part of the circumference of each cylinder and the cylinders being positioned in a face-to-face alignment, so that the two grooves (10) cooperate to form a symmetrical opening with respect to the line of contact of said cylinders, characterized in that it includes means for sealing the cylinders with respect to one another as well as attachment means (1 and 2) and sealing means with respect to the vessel containing the molten material.

Description

La présente invention concerne un dispositif de trou de coulée destiné essentiellement à la coulée de matières liquides, en particulier de matières métalliques ou non-métalliques en fusion, lequel dispositif présente une ouverture variable, en vue de démarrer, d'arrêter et de régler le débit des matières lors de la coulée.The present invention relates to a tap hole device intended essentially for pouring liquid materials, in particular molten metallic or non-metallic materials, which device has a variable opening, in order to start, stop and adjust the material flow during casting.

Les dispositifs de trou de coulée connus dans l'industrie métallurgique comprennent essentiellement les systèmes classiques d'obturation à quenouille ou à tiroir. Le principe de ces systèmes consiste en ce que l'on agrandit resp. rétrécit la section d'un orifice, en enlevant resp. en amenant graduellement un objet, p.ex. un bouchon ou une plaque, entre l'orifice et la matière à couler. Comme la géométrie du jet de coulée est nécessairement affectée par les changements de la géométrie de l'orifice qui interviennent suivant ce principe, ces systèmes ne travaillent bien qu'en position ouverte ou fermée. Pour des ouvertures intermédiaires les jets sont fortement dispersés ce qui entrave fortement la qualité de la coulée. Il est donc utile de proposer des dispositifs de trou de coulée plus performants.The tap hole devices known in the metallurgical industry essentially comprise the conventional stopper systems with a stopper or a drawer. The principle of these systems consists in that one enlarges resp. narrows the section of an orifice, removing resp. by gradually bringing an object, eg a plug or a plate, between the orifice and the material to be poured. As the geometry of the casting jet is necessarily affected by the changes in the geometry of the orifice which occur according to this principle, these systems only work well in the open or closed position. For intermediate openings the jets are highly dispersed which greatly hampers the quality of the casting. It is therefore useful to provide more efficient tap hole devices.

Dans l'industrie de fabrication du verre ou d'autres substances à base de matières non-métalliques comportant une fusion des matiéres et une coulée, on se trouve essentiellement devant les mêmes problèmes que dans le cas de la coulée des métaux. Il est vrai qu'on a proposé des équipements de trou de coulée plus perfectionnés où la section de l'orifice peut être variée par le truchement du dépôt sur les parois du canal de coulée de couches plus ou moins épaisses de matière solidifiée, en prévoyant un réglage de la température du dit canal. Un tel équipement, comme il est décrit p.ex. dans le brevet luxembourgeois LU 82.177 du déposant, doit donc comporter un système de chauffage électrique, ainsi qu'un système de refroidissement qui tout en permettant un réglage du débit, ont un temps de réponse assez long et nécessitent une surveillance constante de leur équilibre thermique pour maintenir un jet d'un débit requis. De plus, aux faibles ouvertures, la géométrie du jet peut devenir irrégulière à cause d'inhomogénéités du dépôt.In the industry for the manufacture of glass or other substances based on non-metallic materials comprising a melting of materials and a casting, we are faced essentially with the same problems as in the case of casting of metals. It is true that more sophisticated taphole equipment has been proposed where the section of the orifice can be varied by means of the deposit on the walls of the runner of more or less thick layers of solidified material, by providing an adjustment of the temperature of said channel. Such equipment, as described, for example, in the applicant's Luxembourg patent LU 82,177, must therefore include an electric heating system, as well as a cooling system which, while allowing flow adjustment, has a time of fairly long response and require constant monitoring of their thermal equilibrium to maintain a jet of required flow. In addition, at small openings, the geometry of the jet can become irregular due to unevenness of the deposit.

Le but de la présente invention est donc de proposer un dispositif de trou de coulée permettant le démarrage, le réglage précis du débit et l'arrêt de la coulée de matières en fusion, en assurant à tout moment des conditions géométriques identiques à la sortie du trou de coulée. Le dispositif doit être applicable à la coulée de métaux liquides et de matières non-métalliques en fusion.The object of the present invention is therefore to propose a taphole device allowing the start, the precise adjustment of the flow rate and the stopping of the pouring of molten material, by ensuring at all times identical geometric conditions at the outlet of the tap hole. The device must be applicable to the casting of liquid metals and molten non-metallic materials.

Ce but est atteint par le dispositif suivant l'invention qui est caractérisé en ce que deux cylindres (A,B) à axes parallèles et mobiles autour de leurs axes respectifs, ont une ligne de contact commune et qu'au moins l'un des cylindres comporte une rainure, tandis que l'autre cylindre peut être lisse. La rainure s'étend sur une portion de la circonférence du cylindre, c.à.d. qu'elle est orientée perpendiculairement à l'axe et elle présente un profil et notamment une profondeur qui varie de manière à passer par un maximum.This object is achieved by the device according to the invention which is characterized in that two cylinders (A, B) with parallel axes and movable around their respective axes, have a common contact line and that at least one of the cylinders have a groove, while the other cylinder can be smooth. The groove extends over a portion of the circumference of the cylinder, i.e. that it is oriented perpendicular to the axis and it has a profile and in particular a depth which varies so as to pass through a maximum.

En usinant dans le corps d'un cylindre, mais de préférence dans les corps des deux cylindres, des rainures identiques d'un profil approprié et en superposant les deux cylindres de manière à ce que l'ouverture circonscrite par les profils des rainures soit symétrique, on crée un système permettant d'aboutir, par rotation des cylindres en contresens l'un par rapport à l'autre, à une variation de la section d'ouverture, tout en préservant une section homothétique à la section initiale.By machining in the body of a cylinder, but preferably in the bodies of the two cylinders, identical grooves of an appropriate profile and by superimposing the two cylinders so that the opening circumscribed by the profiles of the grooves is symmetrical , a system is created which makes it possible, by rotation of the cylinders in opposite directions with respect to each other, to a variation of the opening section, while preserving a section which is homothetic to the initial section.

Suivant l'invention la rainure peut présenter d'après une forme d'exécution préférée, un profil pseudo-elliptique; on peut néanmoins prévoir également des profils d'exécution plus simples, ce qui va cependant au dépens de la continuité de la géométrie du jet pendant la variation du degré d'ouverture du trou de coulée, comme il sera exposé plus bas.According to the invention the groove may have, according to a preferred embodiment, a pseudo-elliptical profile; one can nevertheless also provide simpler execution profiles, which however goes at the expense of the continuity of the geometry of the jet during the variation of the degree of opening of the taphole, as will be explained below.

Le dispositif suivant l'invention comporte des moyens permettant d'entrainer les deux cylindres de manière synchrone, afin de les positionner de façon à obtenir le degré d'ouverture désiré du trou de coulée. Pour ceci il suffit de munir les deux cylindres d'un système à pignons et de prévoir un moyen d'entrainement qui peut être un simple levier ou encore, dans le cas d'applications plus sophistiquées, un servo-moteur, agissant sur l'un des deux cylindres.The device according to the invention comprises means making it possible to drive the two cylinders synchronously, in order to position them so as to obtain the desired degree of opening of the tap hole. For this it suffices to provide the two cylinders with a pinion system and to provide a drive means which can be a simple lever or, in the case of more sophisticated applications, a servo-motor, acting on the one of the two cylinders.

En plus il est prévu suivant l'invention des moyens permettant de presser l'un contre l'autre les deux cylindres le long de leur ligne de contact. Ces moyens peuvent p.ex. être des vis de serrage. Il est également prévu des moyens supplémentaires d'étanchéisation des deux cylindres l'un par rapport à l'autre, lesquels moyens peuvent consister p.ex. en un façonnage suivant lequel l'un des cylindres est imbriqué dans l'autre.In addition, according to the invention, means are provided for pressing the two cylinders against one another along their contact line. These means can, for example, be clamping screws. Additional means are also provided for sealing the two cylinders with respect to each other, which means may consist, for example, of a shaping in which one of the cylinders is nested in the other.

L'avantage principal du dispositif suivant l'invention réside évidemment dans le fait qu'il permet de varier de façon continue l'ouverture du trou de coulée et de procéder à des ajustements précis du débit coulé. Suivant la configuration des rainures, on peut obtenir une ouverture de n'importe quelle forme géométrique. Ainsi des rainures en forme pseudo-elliptique donnent une ouverture parfaitement circulaire. En même temps l'axe de l'orifice ne se déplace pas.The main advantage of the device according to the invention obviously lies in the fact that it makes it possible to continuously vary the opening of the tap hole and to make precise adjustments to the poured flow rate. Depending on the configuration of the grooves, an opening of any geometric shape can be obtained. Thus pseudo-elliptical grooves give a perfectly circular opening. At the same time the axis of the orifice does not move.

Une représentation visuelle du dispositif suivant l'invention et de son principe, est fournie par la voie des dessins où la fig. 1 montre une vue en perspective de deux cylindres dotés chacun d'une rainure pseudo-elliptique; les fig. lA, 1B, 1C et 1D montrant des coupes longitudinales et transversales des mêmes cylindres en positions différentes la fig. 2 représente une vue en perspective de deux cylindres où les rainures présentent un fond droit; les fig. 2A, 2B et 2C montrant des coupes longitudinales et transversales de ces cylindres en positions différentes et les configurations des ouvertures résultant de ces positions et la fig. 3 montre de manière schématique une coupe longitudinale et une coupe transversale d'une forme d'exécution possible du dispositif suivant l'invention.A visual representation of the device according to the invention and of its principle is provided by means of the drawings in which FIG. 1 shows a perspective view of two cylinders each provided with a pseudo-elliptical groove; fig. lA, 1B, 1C and 1D showing longitudinal and transverse sections of the same cylinders in different positions fig. 2 shows a perspective view of two cylinders where the grooves have a straight bottom; fig. 2A, 2B and 2C showing longitudinal and transverse sections of these cylinders in different positions and the configurations of the openings resulting from these positions and FIG. 3 schematically shows a longitudinal section and a cross section of a possible embodiment of the device according to the invention.

En fig. 1 on a représenté deux cylindres (A et B) qui présentent chacun une rainure (10) en forme pseudo-elliptique. En raison de la variation du profil de ces rainures suivant la circonférence de chaque cylindre, une rotation de ceux-ci p.ex. suivant le sens des flèches, conduit à une variation de l'ouvertrue circonscrite par le profil des rainures superposées. Ainsi la position représentée en fig. lA, résultera en une ouverture maximum (01) comme la profondeur des rainures est la plus importante à l'endroit de la ligne de contact entre les cylindres (A et B). Pour arriver à une ouverture plus restreinte, il suffit de tourner les cylindres (A et B) en contresens, le cylindre (A) étant tourné dans le sens contraire à celui des aiguilles d'une montre; il en résultera l'ouverture (02) de la fig. 1B. En continuant ce mouvement, on aboutit à l'ouverture encore plus restreinte (03) de la fig. 1C et finalement à l'obturation totale du trou de coulée, comme le montre la fig. 1D.In fig. 1 shows two cylinders (A and B) which each have a groove (10) in pseudo-elliptical shape. Due to the variation in the profile of these grooves along the circumference of each cylinder, a rotation thereof, eg in the direction of the arrows, leads to a variation of the opening circumscribed by the profile of the superimposed grooves. Thus the position shown in fig. lA, will result in maximum opening (01) as the depth of the grooves is greatest at the location of the contact line between the cylinders (A and B). To arrive at a more restricted opening, it suffices to turn the cylinders (A and B) in the opposite direction, the cylinder (A) being turned counter-clockwise; this will result in the opening (02) of FIG. 1B. Continuing this movement, we arrive at the even more restricted opening (03) of FIG. 1C and finally to the total sealing of the tap hole, as shown in fig. 1D.

La fig. 2 représente essentiellement les mêmes cylindres que ceux. montrés en fig. 1, avec cependant une autre forme d'exécution de la rainure. Celle-ci présente un profil simple à obtenir, étant donné que le fond est droit, comme il ressort des fig. 2A, 2B et 2C. Or, il est facile de voir en fig. 2A que dans ce cas précis seule la position où les fonds des rainures sont parallèles entre eux, il y a ouverture en forme d'un cercle, tandis que toute autre position, comme p.ex. celle représentée, en fig. 2B résulte en une ouverture de profil elliptique ou oval.Fig. 2 essentially represents the same cylinders as those. shown in fig. 1, with however another embodiment of the groove. This has a simple profile to obtain, since the bottom is straight, as shown in Figs. 2A, 2B and 2C. However, it is easy to see in fig. 2A that in this precise case only the position where the bottoms of the grooves are parallel to each other, there is an opening in the form of a circle, while any other position, such as that shown, in fig. 2B results in an elliptical or oval profile opening.

La fig. 2C montre la position de fermeture du trou de coulée. A noter que les flèches qui apparaissent dans les fig. lA,B,C et 2A,B, C indiquant le sens du flux des matières à couler.Fig. 2C shows the closed position of the tap hole. Note that the arrows that appear in Figs. 1A, B, C and 2A, B, C indicating the direction of flow of the material to be poured.

En fig. 3 il est représenté de manière schématisée une forme d'exécution possible du dispositif suivant l'invention. On distingue les cylindres (A,B), dotés chacun d'une rainure (10) en forme d'une pseudo-ellipse, engendrant dans leur position telle que représentée, une ouverture (0) circulaire. On reconnaît les moyens de fixation (1 et 2) du bloc (3) qui fait office de palier pour les deux cylindres.In fig. 3 there is shown schematically a possible embodiment of the device according to the invention. We distinguish the cylinders (A, B), each provided with a groove (10) in the form of a pseudo-ellipse, generating in their position as shown, a circular opening (0). We recognize the fixing means (1 and 2) of the block (3) which acts as a bearing for the two cylinders.

Le déplacement en rotation synchrone des deux cylindres, en contresens l'un par rapport à l'autre, est assuré par les pignons (5). Le dispositif de rotation qui n'est pas représenté, peut être un levier, un vérin, ou un servo-moteur. On reconnaît également les moyens de pression (4) qui peuvent être p.ex. des vis de serrage.The displacement in synchronous rotation of the two cylinders, in opposite direction with respect to each other, is ensured by the pinions (5). The rotation device which is not shown, can be a lever, a jack, or a servo motor. We also recognize the pressure means (4) which can be eg clamping screws.

Suivant le mode d'application du dispositif selon l'invention, les cylindres peuvent être exécutés soit en métal, ce qui sera le cas lors de la coulée de matières non-métalliques en fusion, telles que le sable, les scories, les roches etc., dans le cadre de la fabrication du verre, de la laine minérale ou des fibres céramiques, soit en une matière réfractaire lorsque le dispositif est appliqué dans la coulée de métaux liquides, et qu'il est monté sous une poche de coulée d'aciérie, sous la sole d'un four électrique d'aciérie ou de fonderie, sous le panier-répartiteur d'une coulée continue, ou encore sur la partie de déversement d'un convertisseur.According to the mode of application of the device according to the invention, the cylinders can be executed either in metal, which will be the case during the casting of non-metallic molten materials, such as sand, slag, rocks, etc. ., in the context of the manufacture of glass, mineral wool or ceramic fibers, either in a refractory material when the device is applied in the casting of liquid metals, and when it is mounted under a casting ladle steelworks, under the hearth of an electric steelmaking or foundry furnace, under the basket-distributor of a continuous casting, or even on the discharge part of a converter.

Dans le cas de la coulée de matières non-métalliques il est utile de doter les cylindres métalliques d'un système de refroidissement à l'eau, en prévoyant des canaux (6) destinés à véhiculer l'eau de refroidissement.In the case of pouring non-metallic materials it is useful to provide the metallic cylinders with a water cooling system, by providing channels (6) intended to convey the cooling water.

Claims (11)

.. 1. Dispositif de trou de coulée destiné essentiellement à la coulée de liquides, en particulier de matières métalliques ou non-métalliques en fusion, lequel dispositif présente une ouverture variable en vue de démarrer, d'arrêter et de régler le débit des matières lors de la coulée, caractérisé en ce que deux cylindres (A,B) à axes parallèles et mobiles autour de leurs axes respectifs, ont une ligne de contact commune et qu'au moins l'un des cylindres (A,B) comporte une rainure (10) qui s'étend le long d'une partie de la circonférence du cylindre et dont la section varie le long de ladite circonférence de manière à passer par un maximum, tandis que l'autre cylindre peut présenter une surface lisse.1. A taphole device intended essentially for pouring liquids, in particular molten metallic or non-metallic materials, which device has a variable opening in order to start, stop and regulate the flow of materials during casting, characterized in that two cylinders (A, B) with parallel axes and movable around their respective axes, have a common contact line and that at least one of the cylinders (A, B) has a groove ( 10) which extends along a part of the circumference of the cylinder and whose section varies along said circumference so as to pass through a maximum, while the other cylinder may have a smooth surface. 2. Dispositif suivant la revendication 1, caractérisé en ce que, dans le cas de deux cylindres comportant chacun une rainure, ces dernières présentent un profil identique.2. Device according to claim 1, characterized in that, in the case of two cylinders each having a groove, the latter have an identical profile. 3. Dispositif suivant les revendications 1 et 2, caractérisé en ce que pour obtenir une ouverture circulaire, la rainure présente un profil pseudo-elliptique.3. Device according to claims 1 and 2, characterized in that to obtain a circular opening, the groove has a pseudo-elliptical profile. 4. Dispositif suivant les revendications 1-3, caractérisé en ce que les cylindres sont disposés l'un vis-à-vis de l'autre de manière à ce que les 2 rainures forment une ouverture symétrique par rapport à la génératrice de contact des dits cylindres, p.ex. une ouverture circulaire.4. Device according to claims 1-3, characterized in that the cylinders are arranged one opposite the other so that the 2 grooves form a symmetrical opening relative to the contact generator of so-called cylinders, eg a circular opening. 5. Dispositif suivant les revendications 1-4, caractérisé en ce qu'il comporte des moyens (5) permettant d'entraîner les deux cylindres de manière synchrone en contresens l'un par rapport à l'autre.5. Device according to claims 1-4, characterized in that it comprises means (5) for driving the two cylinders synchronously in opposite directions relative to each other. 6. Dispositif suivant les revendications 1-5, caractérisé en ce qu'il comporte des moyens (4) permettant de presser les deux cylindres l'un contre l'autre le long de leur ligne de contact.6. Device according to claims 1-5, characterized in that it comprises means (4) for pressing the two cylinders one against the other along their contact line. 7. Dipositif suivant les revendications 1-6, caractérisé en ce qu'il comprend des moyens d'étanchéisation des cylindres l'un par rapport à l'autre.7. Device according to claims 1-6, characterized in that it comprises means for sealing the cylinders relative to each other. 8. Dispositif suivant les revendications 1-7, caractérisé en ce qu'il comprend des moyens de fixation (1 et 2) et d'étanchéisa- tion par rapport au récipient renfermant la matière liquide à couler.8. Device according to claims 1-7, characterized in that it comprises fixing means (1 and 2) and sealing relative to the container containing the liquid material to be poured. 9. Dispositif suivant les revendications 1-8, caractérisé en ce que les cylindres sont exécutés en une matière réfractaire.9. Device according to claims 1-8, characterized in that the cylinders are made of a refractory material. 10. Dispositif suivant les revendications 1-8, caractérisé en ce que les cylindres sont exécutés en métal et comprennent des canaux (6) qui sont raccordés à un système de refroidissement à l'eau.10. Device according to claims 1-8, characterized in that the cylinders are made of metal and include channels (6) which are connected to a water cooling system.
EP82630073A 1981-11-04 1982-07-22 Variable gate Expired EP0078760B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82630073T ATE17199T1 (en) 1981-11-04 1982-07-22 ADJUSTABLE POURING OPENING.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU83734 1981-11-04
LU83734A LU83734A1 (en) 1981-11-04 1981-11-04 CASTING DEVICE WITH VARIABLE OPENING

Publications (2)

Publication Number Publication Date
EP0078760A1 true EP0078760A1 (en) 1983-05-11
EP0078760B1 EP0078760B1 (en) 1986-01-02

Family

ID=19729758

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82630073A Expired EP0078760B1 (en) 1981-11-04 1982-07-22 Variable gate

Country Status (9)

Country Link
EP (1) EP0078760B1 (en)
JP (1) JPS5888054A (en)
AT (1) ATE17199T1 (en)
CA (1) CA1186480A (en)
DE (1) DE3268274D1 (en)
DK (1) DK487882A (en)
FI (1) FI822763L (en)
LU (1) LU83734A1 (en)
NO (1) NO159350C (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0120802A1 (en) * 1983-03-01 1984-10-03 Arbed S.A. Tap hole device for furnaces or metallurgical vessels
GB2194023A (en) * 1986-08-15 1988-02-24 Geoflow Int Pty Ltd Valve
GB2214271A (en) * 1987-12-30 1989-08-31 Intellprop Corp Fluid flow control means
US4869406A (en) * 1987-11-12 1989-09-26 Paul Wurth S. A. Discharge control device
DE3809071A1 (en) * 1988-03-18 1989-09-28 Didier Werke Ag TURNING AND / OR SLIDING CLOSURE FOR A SPOUT OF A METAL MELT CONTAINING METAL, AND LOCKING PARTS FOR SUCH A LOCKING
GB2295638A (en) * 1994-11-30 1996-06-05 Brookmex Ltd Material flow device
IT201900018725A1 (en) * 2019-10-14 2021-04-14 Sacmi Dispensing head of a polymeric material and relative delivery method, method of transferring a dose of polymeric material.
CN114029480A (en) * 2021-11-19 2022-02-11 崔荣凯 Aluminum alloy casting device for metal manufacturing

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4768149B2 (en) * 2000-08-10 2011-09-07 Ｎｅｃエンジニアリング株式会社 Liquid crystal display element manufacturing apparatus
JP5425730B2 (en) * 2009-08-27 2014-02-26 本田技研工業株式会社 Viscous material application nozzle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2029105A (en) * 1933-12-23 1936-01-28 Universal Oil Prod Co Valve
DE1120226B (en) * 1959-02-21 1961-12-21 Kurt Vahlberg Throttle device with two rotatable rollers in the housing, each having a recess
FR1478920A (en) * 1965-05-06 1967-04-28 Stal Laval Apparat Ab Liquid metal casting device
GB1434768A (en) * 1973-06-07 1976-05-05 Westinghouse Brake & Signal Valve for particulate material

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2029105A (en) * 1933-12-23 1936-01-28 Universal Oil Prod Co Valve
DE1120226B (en) * 1959-02-21 1961-12-21 Kurt Vahlberg Throttle device with two rotatable rollers in the housing, each having a recess
FR1478920A (en) * 1965-05-06 1967-04-28 Stal Laval Apparat Ab Liquid metal casting device
GB1434768A (en) * 1973-06-07 1976-05-05 Westinghouse Brake & Signal Valve for particulate material

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0120802A1 (en) * 1983-03-01 1984-10-03 Arbed S.A. Tap hole device for furnaces or metallurgical vessels
GB2194023A (en) * 1986-08-15 1988-02-24 Geoflow Int Pty Ltd Valve
US4869406A (en) * 1987-11-12 1989-09-26 Paul Wurth S. A. Discharge control device
GB2214271A (en) * 1987-12-30 1989-08-31 Intellprop Corp Fluid flow control means
DE3809071A1 (en) * 1988-03-18 1989-09-28 Didier Werke Ag TURNING AND / OR SLIDING CLOSURE FOR A SPOUT OF A METAL MELT CONTAINING METAL, AND LOCKING PARTS FOR SUCH A LOCKING
US4932570A (en) * 1988-03-18 1990-06-12 Didier-Werke Ag Rotary and/or slide valve for a metallurgical vessel
GB2295638A (en) * 1994-11-30 1996-06-05 Brookmex Ltd Material flow device
IT201900018725A1 (en) * 2019-10-14 2021-04-14 Sacmi Dispensing head of a polymeric material and relative delivery method, method of transferring a dose of polymeric material.
WO2021074771A1 (en) * 2019-10-14 2021-04-22 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa System for transferring a dose di polymeric material and relative transfer method, method for supplying a dose of polymeric material.
CN114502352A (en) * 2019-10-14 2022-05-13 萨克米伊莫拉机械合作社合作公司 System for delivering a dose of a polymeric material and corresponding delivery method, method of providing a dose of a polymeric material
CN114029480A (en) * 2021-11-19 2022-02-11 崔荣凯 Aluminum alloy casting device for metal manufacturing

Also Published As

Publication number Publication date
JPH0356790B2 (en) 1991-08-29
FI822763L (en) 1983-05-05
DK487882A (en) 1983-05-05
DE3268274D1 (en) 1986-02-13
JPS5888054A (en) 1983-05-26
ATE17199T1 (en) 1986-01-15
NO159350B (en) 1988-09-12
NO159350C (en) 1988-12-21
CA1186480A (en) 1985-05-07
FI822763A0 (en) 1982-08-09
LU83734A1 (en) 1983-09-01
NO823649L (en) 1983-05-05
EP0078760B1 (en) 1986-01-02

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