EP0231520B1 - Procédé et dispositif pour le raccordement d'un nouveau lingot continu dans une installation de coulée continue - Google Patents

Procédé et dispositif pour le raccordement d'un nouveau lingot continu dans une installation de coulée continue Download PDF

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Publication number
EP0231520B1
EP0231520B1 EP86118083A EP86118083A EP0231520B1 EP 0231520 B1 EP0231520 B1 EP 0231520B1 EP 86118083 A EP86118083 A EP 86118083A EP 86118083 A EP86118083 A EP 86118083A EP 0231520 B1 EP0231520 B1 EP 0231520B1
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EP
European Patent Office
Prior art keywords
mold
arrangement according
attachment coupling
cold
cold billet
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Expired - Lifetime
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EP86118083A
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German (de)
English (en)
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EP0231520A1 (fr
EP0231520B2 (fr
Inventor
Margrit Dr. Dislich
Johann Schruff
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Dislich Margrit Dr
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Dislich Margrit Dr
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Priority claimed from DE3629043A external-priority patent/DE3629043C2/de
Application filed by Dislich Margrit Dr filed Critical Dislich Margrit Dr
Publication of EP0231520A1 publication Critical patent/EP0231520A1/fr
Publication of EP0231520B1 publication Critical patent/EP0231520B1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/08—Accessories for starting the casting procedure

Definitions

  • the casting mold In continuous casting, the casting mold not only serves to form a specific cross-sectional shape of the casting strand, but because it is cooled, the molten metal solidifies in the peripheral region of the strand to form a so-called strand shell, the presence of which continues the casting strand into the downstream driving and straightening machine only made possible.
  • commissioning i.e. When casting on a continuous caster, it is not possible without auxiliary measures, as they were already mentioned at the beginning, to handle the leading end of the newly formed casting strand with its still molten core for further transport into the driving and straightening machine.
  • the new casting strand must therefore be connected to a cold strand, with the help of which it can be moved further into the driving and straightening machine.
  • connection of a new casting strand to a cold strand is referred to, then this process should relate both to the measures required when casting, i.e. starting a continuous casting installation, and to the measures when changing the batch, for example when the Plant to be transferred from one casting alloy to another.
  • This procedure has the disadvantage that the core of the beginning of the casting strand had to solidify in order to form a positive connection between the casting metal and the cold strand.
  • the cold strand supports cooling at the beginning of the casting strand, but it takes a relatively long time after opening the slide lock until the casting strand can be fed to the straightening machine. This is a considerable disadvantage when the slide closure of the intermediate container is open.
  • a sand-shaped slide filling compound is often arranged during continuous casting over the closed slide closure of the intermediate container, which is intended to prevent the molten metal from being introduced into the slide gap.
  • this slide filling compound first emerges from the outflow opening of the intermediate container and enters the casting mold.
  • this sand which has reached the end of the cold strand is whirled up and often contaminates a considerable initial section of the casting strand, which must therefore be discarded.
  • the transition from one casting alloy to another casting alloy during the operation of the continuous casting installation can be carried out continuously in that the intermediate container is charged with the new alloy before the previous filling has been completely used up. Although this does not lead to an interruption in production, it does lead to an undesired transition section in the casting line which has to be rejected and is difficult to identify for this purpose. It is therefore preferred to empty the intermediate container before loading with the new alloy. However, this leads to an interruption in the production flow. According to the known procedure, an auxiliary cold strand had to be used again, which led to considerable losses in production time.
  • the invention has for its object to propose a method and an arrangement for connecting a new casting strand in a continuous casting plant, which are primarily aimed at accelerating the tying process, but should also offer the possibility in special embodiments, on the one hand, the adverse influences possibly to minimize slider filling mass used and / or to simplify and accelerate the transition significantly when changing batches.
  • This object is achieved according to the invention in a method of the type described at the outset in that a hollow connecting sleeve which can be attached to the cold strand end and is open at the top and at least largely closed at its lower end is used as a connecting means between the cold strand and the casting strand, the wall cross-sectional shape of which is similar to the cross-sectional contour of the mold cavity and that the mold outlet is essentially closed by means of this connecting sleeve.
  • the arrangement according to the invention is characterized in a corresponding manner.
  • the thickness of the sleeve jacket should be such that the molten casting metal does not completely melt the sleeve jacket, but conversely the sleeve jacket has a cooling effect, and this is also the case by melting heat consumption during the partial melting of the connecting sleeve, which thus represents the first section of the strand shell being formed.
  • additional shot parts can be arranged in the connecting sleeve, which also preferably have the composition of the casting metal.
  • the connecting sleeve is easily attached to the end of the cold strand by inserting the cold strand itself or an extension pin connected to it through a corresponding opening in the bottom of the connecting sleeve and fixing it there with a transverse bolt which is through a transverse bore extends in the end of the cold strand or its extension pin.
  • a cross hole is the only means that must be provided for connection to the sleeve. For fastening it is sufficient if the cross bolt is so long that its protruding ends are supported on the bottom of the connecting sleeve.
  • the connecting sleeve When using this type of connection, the connecting sleeve must of course first be pushed onto the cold strand so far that the bolt can be pushed in and then pushed back until the bolt ends lie against their base. It is more appropriate to use a cross bolt, which is mounted in opposite bores of the sleeve wall. On the one hand, with such a design, the sleeve can be brought into its correct position immediately, on the other hand, the cross bolt is accessible from the outside in this way, so that it can be knocked out from the outside if the cold strand has fulfilled its task.
  • the connecting sleeve may be expedient to connect the connecting sleeve to the cold strand in such a position that its end extends into the interior thereof over a not inconsiderable region of the sleeve length.
  • the cold strand end itself also primarily contributes to the cooling of the first casting metal entering the sleeve. If, on the other hand, the cold strand end or its extension has a smaller diameter than the inside diameter of the sleeve, an annular space is hereby formed below the upper edge of the cold strand end, into which the pusher sand can first enter from the intermediate container.
  • a sand outlet opening in the annular space floor of the connecting sleeve may even consist of an annular gap which is produced in that the bottom opening of the connecting sleeve is kept somewhat larger than the cross section of the cold strand. If the annular space around the end of the cold strand is filled with shot parts to support the cooling effect, an additional sand outlet opening is hardly necessary, since the sand comes directly between the shot parts and is removed from the impact of the incoming casting metal, so that the sand is swirled into the liquid metal can no longer be done. It can be particularly expedient to additionally cover the annular space around the end of the cold strand above the inserted shot parts with a metal grid, which preferably also has the composition of the cast metal.
  • the connecting sleeve has a clear cross section which is at least the same size and design as the cross section of the mold outlet.
  • the connecting sleeve with the cold strand end stored in it and any scrap filling which may be present is placed with its upper edge surrounding the mold outlet against the underside of the mold and held in this position. This simultaneously completes the mold exit.
  • the connecting sleeve in this Embodiment has a relatively large diameter, the cold strand end does not need to be provided with an extension pin here, but can be inserted directly into the connecting sleeve through a corresponding opening in the bottom.
  • the variant of the arrangement according to the invention described here depends on the Cross-section of the auxiliary cold run used, since the sealing is achieved by the upper edge of the connecting sleeve.
  • the cold strand only has to be suitable for being able to be fed to the driving and straightening machine together with the casting strand.
  • the cross bolt is supported by the cold strand end in the wall of the connecting sleeve
  • the bottom of the connecting sleeve does not necessarily have to be fastened to it. It can in turn be attached to the cold strand.
  • a base can be provided which has a certain gap distance from the lower edge of the sleeve shell and whose diameter is larger than that of the sleeve shell, so that the base protrudes in an annular manner above it.
  • the connecting sleeve has a cross section which allows the sleeve to be inserted into the interior of the mold cavity.
  • a cross section which allows the sleeve to be inserted into the interior of the mold cavity.
  • the cold strand expediently has a cross section which roughly corresponds to the mold cavity or the casting strand, or is somewhat smaller. It is advantageous here if the cold strand end is provided with an extension pin which projects into the interior of the connecting sleeve. The extension pin can in turn be fixed in an axial bore in the cold strand end by a securing bolt.
  • the intermediate plate is used for the lower sealing of the annular space surrounding the connecting sleeve.
  • the intermediate plate is preferably designed as an insulating plate with a certain flexibility, which can consist of various suitable materials.
  • the protruding edge of the insulation board can also be used with shot parts to cool molten metal entering the gap outside the connecting sleeve.
  • the molten metal not only gets into the interior of the connecting sleeve during casting, but, as already mentioned, also into the gap between the connecting sleeve and the mold wall.
  • the melt penetrating there is cooled from two sides, namely on the one hand by the cooled mold wall and on the other hand by the wall material of the connecting sleeve.
  • This wall material further reduces the heat flow from the melt in the interior of the connecting sleeve to the cooled mold wall, so that a strand shell approach is formed particularly quickly by this arrangement, which allows the arrangement to be fed directly to the driving and straightening machine.
  • the entire arrangement of cold strand and connecting sleeve can be inserted into the continuous casting mold from the bottom, but in practice it has proven to be expedient to first pass the cold strand moving from below through the continuous casting mold until it protrudes from the inlet opening, then place the intermediate plate and the connecting sleeve on the cold strand end, connect the arrangement by means of the cross bolt and then move it back down into the interior of the mold cavity. It goes without saying that any dip tube possibly used in the continuous caster must first be removed from the mold inlet in order to bring it back into position after the connecting arrangement has been moved downwards.
  • the arrangement variant described so far is also particularly suitable for connecting the new casting strand when changing batches.
  • the casting strand must be stopped when the intermediate container becomes empty, so that its trailing end still remains in the continuous casting mold.
  • An extension pin or a prepared arrangement of a connecting sleeve, intermediate plate and extension pin with the extension pin is then inserted directly into the end of the casting strand with a still molten core.
  • the end of the strand is fixed around the extension pin, so that it is integrated into the end of the strand.
  • the arrangement according to the invention can then function as described above for restarting the system and connecting the new casting strand. In this way, a very quick batch change sel reached.
  • the trailing end of the preceding casting strand is also referred to as a cold strand in this procedure, even if it is not a cold strand used only in an auxiliary manner and does not yet have to have completely changed to the solidified state.
  • FIG. 1 The partial representation of a continuous caster in FIG. 1 shows the basic structure of a pan I, an intermediate container or tundish 2 and a continuous casting mold 3.
  • the intermediate container 2 is provided in its bottom with an outlet opening 4 with a slide closure 5 for the liquid metal.
  • a plug closure or a slide and plug closure or another closure means can also be used.
  • the plant is primarily used to produce cast steel.
  • the continuous casting mold 3 has a mold inlet 6, a mold outlet 7 and a mold cavity 8.
  • the continuous casting mold 3, shown only in the detail, is surrounded by a coolant 9 around the mold cavity 8.
  • a slide filling compound 10 essentially a certain sand mixture, is arranged which, when the slide 5 is closed, is to prevent the metal melt II located in the intermediate container 2 from entering the slide mechanism and moving it.
  • FIGS. 2 and 3 A first embodiment of an arrangement according to the invention, which can be in the position of circle A in FIG. 1, is shown in detail in FIGS. 2 and 3.
  • a connecting sleeve 14 which consists of a sleeve jacket 15 and a sleeve base 16.
  • the sleeve jacket 15 has a clear cross section which corresponds to that of the mold outlet 7, and the connecting sleeve 14 is arranged congruently with the mold outlet 7 under the mold 3.
  • the socket bottom 16 has a bottom opening 17 through which the cold strand 12 is inserted with its end 18 from below into the interior of the connecting sleeve 14.
  • a transverse bolt 20 is arranged in a transverse bore 19 of the cold strand end 18, the projecting ends of which abut against the socket bottom 16 and through which the cold strand end 18 is prevented from leaving the connecting sleeve 14.
  • the bottom opening 17 in the socket bottom 16 has a somewhat larger cross section than the cold strand end 18, so that an annular gap 21 remains, which, as will be described further below, serves as a sand outlet opening.
  • the sleeve jacket 15 can be provided with fasteners that allow the fixed and sealing positioning of the connecting sleeve 14 below the continuous casting mold 3. Suitable fasteners are available in the prior art. Only grooves 22 are indicated in the sleeve jacket 15, into which fastening hooks or clips (not shown) can engage. Some shot parts 23 are arranged inside the connecting sleeve 14.
  • the free-flowing slide filling compound 10 first reaches the connecting sleeve 14, and within it between the shot parts 23 to the bottom of the connecting sleeve 14, from where at least the essential part of the sand can exit through the sand outlet opening 21 from the connecting sleeve downwards.
  • the amount of sand remaining within the connecting sleeve and largely covered by the shot parts 23 is so small that it is not directly reached by the subsequent molten metal when it hits the connecting sleeve, which prevents contamination of the metal by the filler sand.
  • the tight contact of the connecting sleeve 14 on the underside 13 of the casting mold 3 prevents the metal melt from escaping from the mold and the connecting sleeve.
  • the first molten metal entering the connecting sleeve 14 is cooled by the sleeve wall 15 and the shot parts 23 and the cold strand end 18 itself, the melting of which consumes heat of fusion, so that a strand shell is formed parallel to the sleeve shell, including this, which forms a non-positive connection leads between the sleeve and the casting strand, so that only a short time later the cold strand 12 with the connecting sleeve 14 and the casting strand connected to the direction machine can be fed, whereby the continuous casting process is started.
  • the casting mold 3 has a circular cross section in the exemplary embodiment.
  • the mold can have a wide variety of cross-sectional configurations, depending on the product to be manufactured, and that the arrangement according to the invention can be adapted to each of these cross-sectional configurations by the sleeve jacket 15 having a corresponding cross-section, or else a cross section that is slightly larger than the cross section of the mold outlet.
  • the cold strand used alternatively for the arrangement shown has a substantially smaller cross section than the casting strand, which in the example is even rectangular. However, this is not essential. The only requirement is that the auxiliary cold strand used can be fed to the straightening machine.
  • FIGS. 4 and 5 differs from that according to FIGS. 2 and 3 in some features which are to be described below, for the rest parts which correspond to those of FIGS. 2 and 3 are the same Reference numerals.
  • the cold strand end 18 projects further into the connecting sleeve 14 than in the arrangement according to FIG. 2.
  • the cold strand end 18 is held by an elongated transverse bolt 24, the ends of which extend a little above the socket bottom in opposite bores 25 is mounted in the sleeve jacket 15. Due to the deeper insertion of the cold strand end 18, a deepened annular space 26 is created around it below the upper edge of the cold strand end 18 in the connecting sleeve 14. This annular space is partially filled with shot parts 23 and covered with a metal grid 26 above the shot parts.
  • the slide filling compound 10 emerging from the intermediate container when the continuous casting installation is poured on passes through the metal grid 26 between the shot parts 23 in the annular space 26 and is thus removed from the direct impact by the subsequent metal melt.
  • a sand outlet opening is not absolutely necessary in this embodiment, but can also be provided. Shot parts and metal grids, which preferably have the same composition as the cast metal, contribute to cooling the molten metal in the lower region of the connecting sleeve. Otherwise, the connection process of the new casting strand takes place as already described in connection with FIGS. 2 and 3.
  • the sleeve base 16 may be expedient to arrange the sleeve base 16 at a certain gap distance from the sleeve jacket 15. Small amounts of molten metal that may escape through this gap are stopped by the asbestos cord ring 27 resting on the socket base 16.
  • the sleeve base is larger than the outer cross section of the sleeve jacket. In addition, it is square, in contrast to the sleeve jacket. This shape can be useful for manufacturing reasons.
  • FIGS. 6 and 7 Another embodiment of the arrangement according to the invention is shown in FIGS. 6 and 7.
  • the connecting sleeve 14 used here consists solely of the sleeve casing 15, which has a somewhat smaller cross section than the mold cavity 8, so that the connecting sleeve 14 can be inserted into the interior of the mold cavity 8 while leaving a gap 28 between the sleeve casing 15 and the mold inner wall.
  • 6 shows the connecting sleeve 14 arranged in the interior of the mold cavity 8.
  • an extension pin 29 is provided for connecting the end of the cold strand 12 to the connecting sleeve 14, which has its lower end in an axial recess 30 in the end of the Cold strand 12 rests and is anchored there by means of a securing bolt 31 which extends through aligned bores 32 in the extension pin and in the cold strand.
  • the extension pin 29 is fastened within the connecting sleeve 14, as described for the cold strand end 18 in connection with FIG. 4.
  • an intermediate plate 33 made of an insulating material is arranged between the cold strand end 18 and the connecting sleeve 14, which protrudes like a collar over the outer circumference of the connecting sleeve 14 and extends as far as the inner mold wall extends.
  • the collar-like protrusion of this intermediate plate is also covered with shot parts for cooling the melt reaching there.
  • melt penetrating into the gap 28 is preferably cooled by the cooled mold wall as well as by the sleeve wall 15, where it solidifies and possibly melts in part with the sleeve wall 15, thereby forming the beginning of a strand shell which forms a non-positive connection with the connecting sleeve 14 comes in.
  • the shot parts 34 on the intermediate plate 33 outside the connecting sleeve 14 contribute to the solidification of the melt in the lower region of the gap space 28, whereby the melt is prevented from destroying the intermediate plate and from premature escape from the mold cavity.
  • the arrangement of cold strand and connecting sleeve with the connected new casting strand can be fed to the driving and straightening machine.
  • the arrangement shown in FIG. 6 is advantageously positioned by first moving the cold strand end 18 through the mold 3 from below, above the mold under 1 push the cross bolt with the sleeve arrangement and then the sleeve assembly is moved down into the interior of the mold. Since the connecting sleeve and the cold strand end are connected to one another in a non-displaceable manner, the arrangement can be held in the illustrated position by holding the cold strand 12 as long as required.
  • the arrangement described last can advantageously also be used for the rapid processing of a batch change, for example by inserting the extension pin 29 into the still molten core of the ending casting strand, whereupon after it is anchored by cooling the casting strand end from the completed casting process, the arrangement, as described above, can be provided for connecting the new casting strand.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Piles And Underground Anchors (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Claims (19)

1. Procédé pour le raccordement d'un nouveau lingot continu dans une installation de coulée continue avec un panier de coulée (tundish 2) pour le métal de coulée fondu (11), qui montre à son fond un orifice de coulée (4) fermant par des fermetures (5) et avec un lingotière de coulée continue refroidie qui est disposée au-dessous de l'orifice de coulée (4) et qui montre une entrée de la lingotière (6), une cavité de la lingotière (8) et une sortie inférieure de la lingotière (7), ainsi que, le cas échéant, avec un tube plongeur, qui est disposée entre l'orifice de coulée (4) et la lingotière (3) et qui avance dans la cavité de la lingotière (8), en quel (procédé) la sortie de la lingotière (7) est largement fermée du moins temporairement et, la fermeture (5) ouvrie, par solidification du métal de coulée (11) sortant de l'orifice de coulée, une connexion est etablie avec le bout (18) d'une fausse barre (12) portant des moyens de connexion, après quoi la fausse barre (12) avec le lingot continu attaché est ôtée en tirant, caractérisé en ce que, comme moyen de connexion, un manchon de raccordement creux (14) est utilisé que l'on peut attacher au bout de la fausse barre (18) et qui est ouvert en haut et fermé du moins largement au bout inférieur, dont le profil en travers de la paroi ressemble au contour en travers de la cavité de la lingotière (8), et que la sortie de la lingotière (7) est essentiellement fermée au moyen dudit manchon de raccordement.
2. Dispositif pour le raccordement d'un nouveau lingot continu dans une installation de coulée continue avec un panier de coulée (tundish 2) pour le métal de coulée fondu (11), qui montre à son fond un orifice de coulée (4) fermant par des fermetures (5) et avec un lingotière de coulée continue refroidie qui est disposée au-dessous de l'orifice de coulée (4) et qui montre une entrée de la lingotière (6), une cavité de la lingotière (8) et une sortie inférieure de la lingotière (7), ainsi que, le cas échéant, avec un tube plongeur, qui est disposée entre l'orifice de coulée (4) et la lingotière (3) et qui avance dans la cavité de la lingotière (8), quel (dispositif) montre des moyens pour fermer au moins largement la sortie de la lingotière (7) ainsi qu'une fausse barre (12), qui finit dans la zone de la lingotière et qui porte des moyens de connexion pour la formation d'une connexion avec le premier métal de coulée qui solidifiant (11), qui est sorti de l'orifice de coulée (11), caractérisé en ce que les moyens de connexion consistent en un manchon de raccordement creux (14), qui est en forme d'un pot, ouvert en haut et fermé du moins largement au bout inférieur, dont le profil en travers de la paroi ressemble au contour en travers de la cavité de la lingotière (8), et par quel manchon de raccordement, la sortie de la lingotière (7) est du moins largement formée.
3. Dispositif selon la revendication 2, caractérisé en ce que, pour l'attache de la fausse barre (12) au manchon de raccordement (14), le bout (18) de la fausse barre (12) lui-même ou un tenon d'allongement axial (29), étant relié à la fausse barre et d'une vue en coupe plus petite que celle de la fausse barre, sont introduits dans l'intérieur du manchon de raccordement par un orifice correspondant (17) au bout (16) du manchon de raccordement (14) en formant une cavité annulaire (26) vers la paroi intérieure du manchon le long d'un part de la langeur du manchon dans l'intérieur du manchon de raccordement (18) et là sont mis en sécurité contre un mouvement rétrograde par une cheville transversale (20, 24), qui traverse le bout de la fausse barre (18) ou le tenon d'allongement (19).
4. Dispositif selon la revendication 3, caractérisé en ce que les bouts de la cheville transversale (20) avançant du bout de la fausse barre (18) ou du tenon d'allongement (29) collent au fond (16) du manchon de raccordement (14).
5. Dispositif selon la revendication 3, caractérisé en ce que les bouts de la cheville transversale (24) avançant du bout de la fausse barre (18) ou du tenon d'allongement (29) sont logés en des alésages (25) étant en face l'un à l'autre à la paroi (15) du manchon de raccordement (14).
6. Dispositif selon l'une quelconque des revendications 3 à 5, caractérisé en ce que l'on a prévu un orifice pour la sortie du sable (21) au bout du manchon (16) de la cavité annulaire (26).
7. Dispositif selon la revendication 6, en quoi le bout de la fausse barre (18) est introduit dans l'intérieur du manchon, caractérisé en ce que l'orifice pour la sortie du sable est formé par une fente d'orifice (21) entre le bout de la fausse barre (18) et le fond du manchon (16).
8. Dispositif selon l'une quelconque des revendications 3 à 7, caractérisé en ce que la cavité annulaire (26) comprend des fragments de ferrailles (23), de préférence en métal de coulée.
9. Dispositif selon la revendication 8, caractérisé en ce que la cavité annulaire (26) est recouvrie au-dessus les fragments de ferrailles avec une grille (26), de préférence en matière du métal de coulée.
10. Dispositif selon l'une quelconque des revendications 3 à 9, avec un tenon d'allongement (29) au bout de la fausse barre (18), caractérisé en ce que le tenon d'allongement (29) est enchâssé dans un creux axial (30) du bout de la fausse barre (18) et qu'il est ancré dans ledit creux au moyen d'une cheville de sécurité (31) courant transversalement.
11. Dispositif selon l'une quelconque des revendications 3 à 8 avec un tenon d'allongement (29) au bout de la fausse barre (18) caractérisé en ce que le tenon d'allongement est incorporé dans le bout de la fausse barre.
12. Dispositif selon l'une quelconque des revendications 2 à 11, caractérisé en ce que le diamètre intérieur du manchon de raccordement (14) correspond au diamètre intérieur de la lingotière de coulée continue (3) et que le manchon de raccordement (14) est arrangé en coïncidence de la sortie de la lingotière (7) avec son bord supérieur par rapport au dessous (13) de la lingotière (3).
13. Dispositif selon la revendication 12, caractérisé en ce que le fond (16) du manchon de raccordement (14) constitue une distance de fente avec le bord inférieur de la nappe de manchon (15) et qu'il déborde la périphérie du manchon par sa périphérie en forment un gradin au bord et que le gradin au bord est garni de moyens, tels que des fragments de ferrailles, réprimant la fusion complète du métal de coulée.
14. Dispositif selon l'une quelconque des revendications 2 à 12, caractérisé en ce que l'on peut intercaler le manchon de raccordement (14) dans le creux de la lingotière (8) et que le manchon de raccordement est arrangé dans le creux de la lingotière.
15. Dispositif selon la revendication 14, caractérisé en ce qu'une fente à distance (28) est prévue entre la paroi intérieure de la lingotière et la paroi extérieure du manchon.
16. Dispositif selon la revendication 15, en quoi le bout de la fausse barre (18) est garni d'un tenon d'allongement, caractérisé en ce que l'on a arrangé entre le bout de la fausse barre (18) et la nappe de manchon (15) une plaque intermédiaire (33), de préférence en matériau isolant, qui déborde la périphérie du manchon à la manière d'un collet en fermant l'espace de fente (28) entre le manchon (14) et la paroi intérieure de la lingotière vers le bas.
17. Dispositif selon la revendication 16, caractérisé en ce que le collet débordant de la plaque intermédiaire (33) est garni des fragments de ferrailles (34), de préférence en métal de coulée.
18. Dispositif selon la revendication 16 ou 17, caractérisé en ce que la vue en coupe de la fausse barre correspond essentiellement à la vue en coupe du lingot et que le tenon d'allongement (29) est incorporé dans le bout de la fausse barre.
19. Dispositif selon l'une quelconque des revendications 2 à 17, caractérisé en ce que les éléments de construction de l'arrangement des manchons, à l'exception de la plaque intermédiaire en métal, consiste de préférence en métal de coulée.
EP86118083A 1986-01-03 1986-12-27 Procédé et dispositif pour le raccordement d'un nouveau lingot continu dans une installation de coulée continue Expired - Lifetime EP0231520B2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3600042 1986-01-03
DE3600042 1986-01-03
DE3629043A DE3629043C2 (de) 1986-01-03 1986-08-27 Anordnung für das Anbinden eines neuen Gießstranges in einer Stranggießanlage
DE3629043 1986-08-27

Publications (3)

Publication Number Publication Date
EP0231520A1 EP0231520A1 (fr) 1987-08-12
EP0231520B1 true EP0231520B1 (fr) 1990-08-08
EP0231520B2 EP0231520B2 (fr) 1993-10-13

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EP86118083A Expired - Lifetime EP0231520B2 (fr) 1986-01-03 1986-12-27 Procédé et dispositif pour le raccordement d'un nouveau lingot continu dans une installation de coulée continue

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EP (1) EP0231520B2 (fr)
DE (1) DE3673379D1 (fr)
ES (1) ES2016928T5 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3916287C1 (en) * 1989-05-19 1990-08-09 Dislich, Geb. Hoyer, Margrit, Dr., 4100 Duisburg, De Joining up dummy bar in continuous steel casting - by leaving gap between mould wall and sleeve, lining plate with paper or plastic foil etc.
EP0398378A3 (fr) * 1989-05-19 1992-04-08 Dislich, Margrit, Dr. Arrangement pour liaison d'une nouvelle billette en coulée continue
IT1291722B1 (it) * 1997-05-05 1999-01-21 Langonnaise S A H Dispositivo di testa per un processo di colata continua di billette
FR3009216B1 (fr) * 2013-11-13 2015-09-04 Aubert & Duval Sa Outillage de fixation d'une tete d'accrochage sur une electrode coulee dans un moule, installation et procede associes
CN113477895A (zh) * 2021-07-08 2021-10-08 攀钢集团攀枝花钢钒有限公司 用于小型连铸方坯结晶器的开浇启铸器及施工方法
CN114082905B (zh) * 2021-11-24 2023-03-24 广东韶钢松山股份有限公司 一种小方坯引锭头连接组合件及其装配方法
CN114632917B (zh) * 2022-03-18 2023-09-08 重庆钢铁股份有限公司 一种连铸机在线处理结晶器内坯壳的方法
CN115055655A (zh) * 2022-05-14 2022-09-16 江阴兴澄特种钢铁有限公司 一种超大规格连铸圆坯的开浇装置和方法
CN117300085A (zh) * 2023-10-11 2023-12-29 清远楚江高精铜带有限公司 一种成型模具、拉铸成型设备及使用方法
CN117415292B (zh) * 2023-11-01 2024-05-07 江苏兴成新材料有限公司 高精度铜带水平连铸机组自动化设备

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AT227394B (de) 1961-07-03 1963-05-10 Concast Ag Vorrichtung zum Lösen des Kaltstranges vom Anfahrkopf bei Stranggießanlagen

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FR1054527A (fr) * 1952-04-16 1954-02-11 Boehler & Co Ag Geb Procédé pour assurer l'étanchéité des coquilles pour coulée à la barre de métaux, en particulier de fer et d'acier
DE2611793C2 (de) * 1976-03-19 1985-10-24 Stoody Co., Santa Fe Springs, Calif. Anfahrkopf zum horizontalen Stranggießen und Verfahren zum Anfahren des horizontalen Stranggießens
GB2027374B (en) * 1978-06-20 1982-09-08 Kawasaki Steel Co Method of sequential continuous-casting of different grades of steel
FI832828A (fi) * 1983-08-05 1985-02-06 Proizv Obiedininie Uralmash Kolv foer anvaendning i formen pao en horisontell straenggjutningsmaskin foer framstaellning av runda tackor.

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AT227394B (de) 1961-07-03 1963-05-10 Concast Ag Vorrichtung zum Lösen des Kaltstranges vom Anfahrkopf bei Stranggießanlagen

Also Published As

Publication number Publication date
DE3673379D1 (de) 1990-09-13
EP0231520A1 (fr) 1987-08-12
ES2016928B3 (es) 1990-12-16
EP0231520B2 (fr) 1993-10-13
ES2016928T5 (es) 1995-08-16

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