EP0006433B1 - Device for commanding the flow of molten metal from a tundish into a continuous casting mould - Google Patents

Device for commanding the flow of molten metal from a tundish into a continuous casting mould Download PDF

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Publication number
EP0006433B1
EP0006433B1 EP79101417A EP79101417A EP0006433B1 EP 0006433 B1 EP0006433 B1 EP 0006433B1 EP 79101417 A EP79101417 A EP 79101417A EP 79101417 A EP79101417 A EP 79101417A EP 0006433 B1 EP0006433 B1 EP 0006433B1
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EP
European Patent Office
Prior art keywords
control
lever
mechanical
proximity
transmission
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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.)
Expired
Application number
EP79101417A
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German (de)
French (fr)
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EP0006433A1 (en
Inventor
Robert Becus
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.)
Aciers Fins De L'est Francaise SA Ste
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Aciers Fins De L'est Francaise SA Ste
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Priority to AT79101417T priority Critical patent/ATE607T1/en
Publication of EP0006433A1 publication Critical patent/EP0006433A1/en
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Expired legal-status Critical Current

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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
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/18—Controlling or regulating processes or operations for pouring
    • B22D11/181—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level
    • 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
    • B22D41/16—Closures stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
    • B22D41/20—Stopper-rod operating equipment

Definitions

  • the invention relates to the adjustment of the flow rate of molten metal contained in a continuous casting distributor, or basket, and flowing in a metal solidification mold.
  • the action on the control member can be manual, but it is also known to automate it by a device for detecting the filling level of the mold.
  • Such an adjustment circuit, in closed mouth can be produced with the use of radioactive sources which are suitably arranged but which have a certain number of drawbacks in use.
  • a closed loop circuit based on the detection of radiation emitted by the liquid metal of the ingot mold, and experimented industrially on the continuous casting installation of the applicant together with the mechanical control object of the invention, eliminates these drawbacks, presents perfectly reliable operation, and ensures remarkable level stability in the mold. This result is obtained even in the case where pipes are used to protect the jet of liquid metal flowing between the distributor and the ingot mold, together with synthetic slags for covering the meniscus of liquid metal in the ingot mold.
  • the object of the invention is to improve the reliability of the complete installation, on the one hand by not unnecessarily exposing a delicate active member in the immediate vicinity of the casting, and on the other hand by ensuring that if however an incident occurs on a dispatcher can be quickly evacuated.
  • crank pin (9) with crank pin (10), the pinion (8), the support (7), the rack (6), the cross-member (5) and the stopper (4) constitute a mechanism (11) called hereinafter. coiled post.
  • a proximity control station 12 which comprises a first lever 13 and a second lever 14 both articulated on the same fixed axis 15, these two levers being able to be coupled together or decoupled to will by the introduction or removal of a spindle 16.
  • a control rod 17 of adjustable length is articulated at one end at a point 18 of the lever 13 while its other end 19, in the form of a fork with lateral opening, can be hooked on the crank pin 10 of the crank 9.
  • the end 20 of the second lever 14 is joined by a connecting rod 21 to a sliding device 22 actuated by a ball control under sheath 23, from a console remote control 24, in which the other end of the ball control 23 is fixed to another sliding device 25.
  • the latter is coupled by another link 26 to a third lever 27 articulated at a fixed point 28 at the same time as 'a fourth lever 29.
  • the third lever 27 can be actuated itself by means of a lateral articulation 30, and by means of a link 31, from a manual control lever 32 pivoting around a fixed axis 33 and containing the articulation 34 of the other end of the link 31.
  • a counterweight 35 acts on the lever 32 for manual control.
  • the device is advantageously completed by an emergency control constituted by a lever 40 which is fixed in the extension of the first lever 13.
  • the casting operation can begin with a manual action on the control 32 which freely ensures the transmission. of movement, the clutch 39 being at this time not excited.
  • the actuator 37 provides consequently the control of the movement of the stopper 4 at the same time as the movement of the lever 32.
  • control desk 24 with its delicate parts, in particular the electric actuator, the manual control and the counterweight is located at a distance from the molten metal. This results in greater safety for personnel during start-up and also better conservation of the equipment.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Continuous Casting (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Control Of Non-Electrical Variables (AREA)

Abstract

A device for regulating the flow through a plug of a dispensing vessel in a continuous casting installation, using the level of the metal bath in the receiving ingot mold, by means of a known electronic optical device. On each distributor there is a mechanical-reduction mechanism, with a purely mechanical proximity-control unit which is close to the casting unit and can be connected by a rapid coupling means to the mechanism. This control unit is actuated by a mechanical remote control from a remote-control console, which comprises both manual control and control by means of a servo-jack acting on the same mechanical transmission, while an emergency control is provided for acting directly on the proximity-control unit.

Description

L'invention concerne le réglage du débit de métal en fusion contenu dans un répartiteur de coulée continue, ou panier, et s'écoulant dans une lingotière de solidification du métal.The invention relates to the adjustment of the flow rate of molten metal contained in a continuous casting distributor, or basket, and flowing in a metal solidification mold.

Il est connu de régler ce débit au moyen d'éléments réfractaires tampon-busette. Le tampon, placé à l'extrémité d'une quenouille, obture plus ou moins l'orifice de la busette, par le réglage de la levée de la quenouille. Cette levée s'obtient par l'action d'un organe de commande fixé au répartiteur et relié à la quenouille.It is known to regulate this flow rate by means of refractory buffer-nozzle elements. The buffer, placed at the end of a stopper, more or less closes the orifice of the nozzle, by adjusting the lift of the stopper. This lifting is obtained by the action of a control member fixed to the distributor and connected to the stopper rod.

L'action sur l'organe de commande peut être manuelle, mais il est connu également de l'automatiser par un dispositif de détection de niveau de remplissage de la lingotière. Un tel circuit de réglage, en bouche fermée, peut être réalisé avec l'utilisation de sources radioactives convenablement disposées mais qui présentent un certain nombre d'inconvénients d'emploi. Un circuit en boucle fermée, basé sur la détection des rayonnements émis par le métal liquide de la lingotière, et expérimenté industriellement sur l'installation de coulée continue de la demanderesse conjointement à la commande mécanique object de l'invention, supprime ces inconvénients, présente un fonctionnement parfaitement fiable, et assure une stabilité remarquable du niveau dans la lingotière. Ce résultat est obtenu même dans le cas où l'on utilise des tubulures de protection du jet de métal liquide s'écoulant entre répartiteur et lingotière, conjointement à des laitiers synthétiques de couverture du ménisque de métal liquide dans la lingotière.The action on the control member can be manual, but it is also known to automate it by a device for detecting the filling level of the mold. Such an adjustment circuit, in closed mouth, can be produced with the use of radioactive sources which are suitably arranged but which have a certain number of drawbacks in use. A closed loop circuit, based on the detection of radiation emitted by the liquid metal of the ingot mold, and experimented industrially on the continuous casting installation of the applicant together with the mechanical control object of the invention, eliminates these drawbacks, presents perfectly reliable operation, and ensures remarkable level stability in the mold. This result is obtained even in the case where pipes are used to protect the jet of liquid metal flowing between the distributor and the ingot mold, together with synthetic slags for covering the meniscus of liquid metal in the ingot mold.

Il est de plus connu de concevoir le répartiteur de manière qu'il puisse être levé, abaissé, déplacé latéralement ou basculé, pour parer aux aléas du processus de coulée, ou aux nécessités de débuts et de fins de coulée. Ceci exige des liaisons facilement détachables entre les parties de commande attachées au répartiteur et celles reliées aux organes de commande, manuelle ou automatique.It is also known to design the distributor so that it can be raised, lowered, moved laterally or tilted, to deal with the vagaries of the casting process, or the needs of start and end of casting. This requires easily detachable connections between the control parts attached to the distributor and those connected to the control members, manual or automatic.

Pour permettre à la fois une commande manuelle à distance, par exemple en début et fin de coulée ou en cas d'incident, et l'asservissement au détecteur de niveau de la lingotière pour la marche normale, l'état de la technique impose donc

  • - soit que l'organe actif vérin ou servomoteur, soit fixé à dèmeure sur le répartiteur, avec découplage de son alimentation, par exemple électrique ou hydraulique, ce qui entraine que cet organe actif soit exposé à une température élevée et à des projections de métal en fusion,
  • - soit que l'organe actif soit situé à distance et relié au répartiteur par un organe de transmission mécanique tel qu'un flexible, comme dans le document DE-A-1 935 782, ce qui rend alors très difficile le découplage de la commande à distance, et même de la commande manuelle locale, ce qui explique qu'aucun découplage n'ait été prévu sur ce document.
To allow both manual remote control, for example at the start and end of casting or in the event of an incident, and enslavement to the level detector of the mold for normal operation, the state of the art therefore requires
  • - or that the actuator or actuator active member, is fixed at rest on the distributor, with decoupling of its supply, for example electric or hydraulic, which causes this active member to be exposed to a high temperature and to metal splashes in fusion,
  • - or that the active member is located remotely and connected to the distributor by a mechanical transmission member such as a hose, as in document DE-A-1 935 782, which then makes decoupling of the control very difficult remotely, and even local manual control, which explains why no decoupling has been provided for in this document.

Le but de l'invention est d'améliorer la fiabilité de l'installation complète, d'une part en n'exposant pas inutilement un organe actif délicat à proximité immédiate de la coulée, et d'autre part en faisant en sorte que si néanmoins un incident se produit sur un répartiteur on puisse l'évacuer rapidement.The object of the invention is to improve the reliability of the complete installation, on the one hand by not unnecessarily exposing a delicate active member in the immediate vicinity of the casting, and on the other hand by ensuring that if however an incident occurs on a dispatcher can be quickly evacuated.

La présente invention concerne un dispositif de réglage du débit d'un répartiteur dans une installation de coulée continue par asservissement au niveau du bain de métal dans la lingotière réceptrice par l'intermédiaire d'un dispositif optique électronique connu actionnant un vérin d'asservissement avec commande manuelle en parallèle, caractérisé par le fait qu'il comporte:

  • a) sur chaque répartiteur un mécanisme de manoeuvre du bouchon relativement simple et purement mécanique.
  • b) à un endroit proche du poste de coulée, un poste de commande de proximité purement mécanique,
  • c) à une certaine distance du précédent un pupitre de commande à distance comportant à la fois la commande manuelle et la commande par vérin d'asservissement agissant par l'intermédiaire d'une même transmission mécanique à distance sur le poste de commande de proximité,
  • d) une commande manuelle supplémentaire de secours disposée pour agir directement sur le poste de commande de proximité, enfin
  • e) un organe mécanique assurant à la fois
    • - la transmission au mécanisme de manoeuvre du mouvement produit au poste de commande de proximité par ledit vérin, par ladite commande manuelle à distance ou par ladite commande manuelle de secours selon le cas,
    • -l'accouplement et le désaccouplement rapide des deux ensembles reliés par cette transmission.
The present invention relates to a device for adjusting the flow rate of a distributor in a continuous casting installation by servo control at the level of the metal bath in the receiving ingot mold by means of a known electronic optical device actuating a servo actuator with manual control in parallel, characterized in that it comprises:
  • a) on each distributor a relatively simple and purely mechanical mechanism for operating the plug.
  • b) at a location close to the casting station, a purely mechanical proximity control station,
  • c) at a certain distance from the previous one a remote control console comprising both manual control and control by servo actuator acting by means of the same mechanical remote transmission on the proximity control station,
  • d) an additional manual emergency control arranged to act directly on the proximity control station, finally
  • e) a mechanical member ensuring both
    • - the transmission to the operating mechanism of the movement produced at the proximity control station by said jack, by said remote manual control or by said manual emergency control as appropriate,
    • -the quick coupling and uncoupling of the two assemblies connected by this transmission.

D'autres particularités de l'invention apparaissent dans la description qui va suivre d'un mode de réalisation pris comme exemple et représenté sur le dessin annexé, sur lequel la figure unique représente, en élévation avec coupe partielle, l'ensemble du dispositif.Other features of the invention appear in the following description of an embodiment taken as an example and shown in the accompanying drawing, in which the single figure shows, in elevation with partial section, the entire device.

On voit sur la figure un répartiteur de coulée 1 avec son trou de coulée 2 destiné à alimenter une lingotière 3, ce trou de coulée étant fermé par une quenouille 4 dont l'extrémité supérieure est réunie par une traverse 5 à une crémaillère 6 coulissant dans un support 7 solidaire de la structure du répartiteur 1. Sur cette crémaillère agit un pignon 8 calé sur le même arbre qu'une manivelle 9 à maneton 10.We see in the figure a tundish 1 with its tap hole 2 intended to feed a mold 3, this tap hole being closed by a stopper 4 whose upper end is joined by a crosspiece 5 to a rack 6 sliding in a support 7 secured to the structure of the distributor 1. On this rack acts a pinion 8 wedged on the same shaft as a crank 9 with crank pin 10.

La manivelle (9) à maneton (10), le pignon (8), le support (7), le crémaillère (6), le traverse (5) et la quenouille (4) constituent un mécanisme (11) appellé par le suite poste de cailée.The crank pin (9) with crank pin (10), the pinion (8), the support (7), the rack (6), the cross-member (5) and the stopper (4) constitute a mechanism (11) called hereinafter. coiled post.

Tout près de ce pose de coulée 11 se trouve un poste de commande de proximité 12 qui comporte un premier levier 13 et un deuxième levier 14 articulés tous les deux sur le même axe fixe 15, ces deux leviers pouvant être couplés entre eux ou découplés à volonté par la mise en place ou le retrait d'une broche 16. Une bielle de commande 17 de longueur réglable est articulée à une extrémité en un point 18 du levier 13 tandis que son autre extrémité 19, en forme de fourche à ouverture latérale, peut venir s'accrocher sur le maneton 10 de la manivelle 9. L'extrémité 20 du second levier 14 est réunie par une biellette 21 à un dispositif coulissant 22 actionné par une commande à billes sous gaine 23, à partir d'un pupitre de commande à distance 24, dans lequel l'autre extrémité de la commande à billes 23 est fixée à un autre dispositif coulissant 25. Ce dernier est couplé par une autre biellette 26 à un troisième levier 27 articulé en un point fixe 28 en même temps qu'un quatrième levier 29.Very close to this casting 11 is a proximity control station 12 which comprises a first lever 13 and a second lever 14 both articulated on the same fixed axis 15, these two levers being able to be coupled together or decoupled to will by the introduction or removal of a spindle 16. A control rod 17 of adjustable length is articulated at one end at a point 18 of the lever 13 while its other end 19, in the form of a fork with lateral opening, can be hooked on the crank pin 10 of the crank 9. The end 20 of the second lever 14 is joined by a connecting rod 21 to a sliding device 22 actuated by a ball control under sheath 23, from a console remote control 24, in which the other end of the ball control 23 is fixed to another sliding device 25. The latter is coupled by another link 26 to a third lever 27 articulated at a fixed point 28 at the same time as 'a fourth lever 29.

Le troisième levier 27 peut être actionné lui-même au moyen d'une articulation latérale 30, et par l'intermédiaire d'une biellette 31, à partir d'un levier de commande manuel 32 pivotant autour d'un axe fixe 33 et contenant l'articulation 34 de l'autre extrémité de la biellette 31. En même temps, un contrepoids 35 agit sur le levier 32 de commende manuelle.The third lever 27 can be actuated itself by means of a lateral articulation 30, and by means of a link 31, from a manual control lever 32 pivoting around a fixed axis 33 and containing the articulation 34 of the other end of the link 31. At the same time, a counterweight 35 acts on the lever 32 for manual control.

D'autre part, sur l'extrémité 36 du quatrième levier 29 s'articule l'extrémité d'un vérin électrique 37 lui-même articulé en un point fixe 38. Un embrayage électromagnétique 39 permet d'accoupler le troisième levier 27 avec le quatrième levier 29.On the other hand, on the end 36 of the fourth lever 29 is articulated the end of an electric actuator 37 itself articulated at a fixed point 38. An electromagnetic clutch 39 makes it possible to couple the third lever 27 with the fourth lever 29.

Enfin, le dispositif se complète avantageusement par une commande de secours constituée par un levier 40 qui est fixé dans le prolongement du premier levier 13.Finally, the device is advantageously completed by an emergency control constituted by a lever 40 which is fixed in the extension of the first lever 13.

Après mise en place du répartiteur, il suffit d'accrocher la biellette réglable 17 sur son maneton 10. Lorsque le répartiteur a été rempli de métal, l'opération de coulée peut commencer par une action manuelle sur la commande 32 qui assure librement la transmission du mouvement, l'embrayage 39 étant à ce moment non excité. On peut ensuite assurer la régulation automatique à partir du dispositif optique électronique usuel, non représenté, en couplant celui-ci avec le moteur du vérin électrique 37 et en alimentant en même temps l'excitation de l'embrayage électromagnétique 39. Le vérin 37 assure par conséquent la commande du mouvement de la quenouille 4 en même temps que le déplacement du levier 32.After installation of the distributor, it suffices to hang the adjustable link 17 on its crank pin 10. When the distributor has been filled with metal, the casting operation can begin with a manual action on the control 32 which freely ensures the transmission. of movement, the clutch 39 being at this time not excited. One can then ensure automatic regulation from the usual electronic optical device, not shown, by coupling it with the motor of the electric actuator 37 and at the same time supplying the excitation of the electromagnetic clutch 39. The actuator 37 provides consequently the control of the movement of the stopper 4 at the same time as the movement of the lever 32.

L'ensemble du pupitre de commande 24 avec ses parties délicates, notamment le vérin électrique, la commande manuelle et le contrepoids se trouve à distance du métal en fusion. Il en résulte une plus grande sécurité pour le personnel lors de la mise en marche et également une meilleure conservation du matériel.The whole of the control desk 24 with its delicate parts, in particular the electric actuator, the manual control and the counterweight is located at a distance from the molten metal. This results in greater safety for personnel during start-up and also better conservation of the equipment.

Toutefois, en cas de panne du dispositif électronique ou du vérin 37, l'embrayage 39 est automatiquement débrayé et l'on peut reprendre la commande manuelle au moyen du levier 32. Dans le cas ou même la commande à distance 23, ou encore ses leviers ou ses biellettes de transmission se trouveraient bloqués, on pourrait alors immédiatement retirer la broche 16 et continuer à coulér en agissant à la main sur la commande de secours 40.However, in the event of failure of the electronic device or of the actuator 37, the clutch 39 is automatically disengaged and the manual control can be resumed by means of the lever 32. In the case where even the remote control 23, or even its levers or its transmission rods would be blocked, we could then immediately remove pin 16 and continue to flow by acting by hand on the emergency control 40.

Enfin, en cas d'incident nécessitant l'évacuation d'urgence du répartiteur., la biellette 17 est découplée du maneton 10. Ce ci libère le répartiteur de toute liaison, tout en assurant la fermeture de la busette; le système tamponquenouille venant l'obturer sous l'action de son propre poids.Finally, in the event of an incident requiring the emergency evacuation of the distributor., The link 17 is decoupled from the crank pin 10. This releases the distributor from any connection, while ensuring the closure of the nozzle; the buffering system which closes it under the action of its own weight.

Claims (3)

1. A device for adjusting the flow of a tundish in a continuous casting installation by servo-control by the level of the metal bath in the receiving mould by means of a known electronic optical device actuating a servo-control ram with manual control in parallel, characterized in that it comprises:
a) on the tundish a purely mechanical mechanism (11) operating the stopper,
b) at a position near the pouring station (11), a purely mechanical proximity control station (12),
c) remote from the above, a remote control console (24) comprising both the manual control (32) and the servo-control ram (37) control acting through one single remote mechanical transmission (23) on the proximity control station (12),
d) an additional emergency manual control (40) designed to act directly on the proximity control station (12) and, finally,
e) a mechanical component (17) providing both
-the transmission to the operating mechanism (11) of the movement produced at the proximity control station (12) by the said ram (37), by the said remote manual control (32) or by the said emergency manual control (40) as the case may be,
-rapid coupling and uncoupling of the two assemblies (11, 12) connected by this transmission.
2. The device according to claim 1, characterized in that
-the said operating mechanism (11) comprises a vertical rack (6) and pinion (8) device, with the said rack (6) being connected by means of a cross member (5) to the stopper rod (4) whilst the said pinion (8) is fixed to a crank (9) with drive crank pin (10).
-the proximity control station (12) acts through a lever (13) having a hinge point (18),
-finally, the said mechanical component (17) providing both the transmission and the coupling is made up of a link (17) which can be adjusted in length and which has a first end hinged in conventional manner on the said hinge point (18) and a second end, shaped like a fork (19) with a side opening, hinging on the said drive crank pin (10) in such a way as to provide in a normal way the transmission between the said crank pin (10) and the said hinge point (18), whilst uncoupling is performed by swivelling the link (17) round the hinge point (18) and separating the said fork-shaped second end (19) and the said drive crank pin (10) using the said side opening.
3. The device according to claim 2, characterized in that the proximity control station (12) comprises a first lever (13) and a second lever (14) hinged round the same pin (15) which can be coupled together by a mechanical coupling device (16), with the first lever (13) bearing the hinge point (18) of the said first end of the link (17) whilst an extension (40) of the first lever (13) forms the emergency control,
-in that the control console (24) comprises a third (27) and a fourth (29) lever hinged round the same hingepin (28) which can be coupled together by an electromagnetic clutch (39), the third lever (27) being connected mechanically to the second lever (14) by means of sliding end pieces (25, 22) and links (26, 21) at the same time as being connected (this third lever (27)) to a main manual control lever (32) and to a counterweight (35) to balance the stopper rod (4) and
-in that the fourth lever (29) is operated by an electric ram (37), fed by the said electronic device and the operation of which simultaneously with energization of the said electromagnetic clutch (39) makes it possible to operate remote control of the level of the metal bath in the receiving mould (3).
EP79101417A 1978-06-28 1979-05-09 Device for commanding the flow of molten metal from a tundish into a continuous casting mould Expired EP0006433B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79101417T ATE607T1 (en) 1978-06-28 1979-05-09 DEVICE FOR CONTROLLING THE FLOW OF METAL FROM A DISTRIBUTION TANK TO A CONTINUOUS CASTING MOLD.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7819391 1978-06-28
FR7819391A FR2429632A1 (en) 1978-06-28 1978-06-28 DEVICE FOR ADJUSTING THE FLOW RATE OF A PLUG OF A DISPENSING CONTAINER IN A CONTINUOUS CASTING SYSTEM, BY CONTROLLING AT THE METAL BATH OF A RECEIVING LINGOTIERE

Publications (2)

Publication Number Publication Date
EP0006433A1 EP0006433A1 (en) 1980-01-09
EP0006433B1 true EP0006433B1 (en) 1982-01-27

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EP79101417A Expired EP0006433B1 (en) 1978-06-28 1979-05-09 Device for commanding the flow of molten metal from a tundish into a continuous casting mould

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US (1) US4271896A (en)
EP (1) EP0006433B1 (en)
JP (1) JPS5527488A (en)
AT (1) ATE607T1 (en)
CA (1) CA1141141A (en)
DE (1) DE2961947D1 (en)
ES (1) ES482430A1 (en)
FR (1) FR2429632A1 (en)
IN (1) IN149561B (en)
PL (1) PL124466B1 (en)
SU (1) SU961549A3 (en)
ZA (1) ZA792927B (en)

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FR2859929B1 (en) * 2003-09-23 2007-01-26 Realisations Tech Sert Soc Et METHOD FOR AUTOMATICALLY STARTING A CONTINUOUS CASTING PLANT AND ASSEMBLY FOR CARRYING OUT SAID METHOD
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US2832110A (en) * 1951-11-01 1958-04-29 Blaw Knox Co Ladle stopper control apparatus
US2753605A (en) * 1952-11-29 1956-07-10 Republic Steel Corp Apparatus for metering of molten metal by weight
US2753606A (en) * 1953-11-23 1956-07-10 Ind Equipment Company Tap raising and lowering mechanism for a foundry ladle
CH513690A (en) * 1970-06-08 1971-10-15 Patusa Ag Device for controlling a stopper of a casting container
CH551821A (en) * 1972-10-17 1974-07-31 Concast Ag PROCESS AND EQUIPMENT FOR REGULATING THE LEVEL OF THE MELT IN MOLDS OF CONTINUOUS CASTING PLANTS.
US3842894A (en) * 1973-01-17 1974-10-22 American Metal Climax Inc Automatic means for remote sweep-scanning of a liquid level and for controlling flow to maintain such level

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Publication number Publication date
CA1141141A (en) 1983-02-15
ES482430A1 (en) 1980-04-01
FR2429632A1 (en) 1980-01-25
PL216412A1 (en) 1980-03-10
PL124466B1 (en) 1983-01-31
JPS5527488A (en) 1980-02-27
SU961549A3 (en) 1982-09-23
IN149561B (en) 1982-01-23
EP0006433A1 (en) 1980-01-09
US4271896A (en) 1981-06-09
FR2429632B1 (en) 1983-02-25
ATE607T1 (en) 1982-02-15
DE2961947D1 (en) 1982-03-11
ZA792927B (en) 1980-06-25

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