EP0030910B1 - Pouring tubes for continuous electrorotative casting of metals - Google Patents

Pouring tubes for continuous electrorotative casting of metals Download PDF

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Publication number
EP0030910B1
EP0030910B1 EP80630055A EP80630055A EP0030910B1 EP 0030910 B1 EP0030910 B1 EP 0030910B1 EP 80630055 A EP80630055 A EP 80630055A EP 80630055 A EP80630055 A EP 80630055A EP 0030910 B1 EP0030910 B1 EP 0030910B1
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EP
European Patent Office
Prior art keywords
vanes
nozzles according
central tube
nozzles
metal
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.)
Expired
Application number
EP80630055A
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German (de)
French (fr)
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EP0030910A1 (en
Inventor
Paul Metz
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.)
Arcelor Luxembourg SA
Original Assignee
Arbed SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arbed SA filed Critical Arbed SA
Priority to AT80630055T priority Critical patent/ATE4965T1/en
Publication of EP0030910A1 publication Critical patent/EP0030910A1/en
Application granted granted Critical
Publication of EP0030910B1 publication Critical patent/EP0030910B1/en
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
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/50—Pouring-nozzles
    • B22D41/507—Pouring-nozzles giving a rotating motion to the issuing molten metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B22D11/11—Treating the molten metal
    • B22D11/114—Treating the molten metal by using agitating or vibrating means
    • B22D11/115—Treating the molten metal by using agitating or vibrating means by using magnetic fields

Definitions

  • the present invention relates to plunging nozzles used in electrorotative continuous casting of liquid metals, in particular steel.
  • the rotation of the liquid metal has certain advantages compared to static casting, in particular that of bringing a favorable modification to the solidification structure by eliminating the basaltic zone in favor of a finer solidification structure.
  • the most rational way to carry out the stirring or the rotation of the metal not yet solidified, as well at the level of the ingot mold as in the zone of the secondary cooling, consists in putting the metal in movement by mechanical, pneumatic way or with l using an electromagnetic field.
  • the latter can be created by one or more inductors that are positioned around the mold or even below it, to generate fields of specific configurations.
  • the inclusions tend to collect in the area of the axis of the bar and to be sucked into the liquid metal under the effect of the vortex. creates. This produces a product having an axial zone with too high a concentration of inclusions.
  • the object of the invention therefore consisted in imagining and developing a device allowing the conduct of a continuous electrorotative casting with protection of the metal surface by slag, while avoiding the risks described which are linked to the vortex effect due when the metal rotates in the mold.
  • plunging nozzles which consist in particular of a central tube comprising an upper part in which the pouring jet ends and a lower part which plunges into the liquid metal and which are characterized in that they include external blades to the central tube, radial with respect to the axis of the ingot mold, which blades press against the central tube and plunge at least partially under the surface of the liquid metal.
  • the idea is at the base of the present invention consists in using a device which does not significantly hamper the actual rotation of the liquid metal continuously cast, while opposing a mechanical brake to the zone which comprises the surface of the metal on which floats a slag or protective slag.
  • This mechanical brake therefore acts in particular on the area of the metal-slag interface in the sense that it immobilizes the latter, which prevents the formation of a vortex due to the rotation of the liquid metal, and thereby eliminates the entrainment within the metal of non-metallic particles.
  • a nozzle which has 4 blades extending either towards the middle of the 4 walls of the mold, or towards the 4 corners of the latter.
  • the dimensions of the blades are chosen according to the arrangement of the nozzle in the ingot mold so that the ends of the blades approach substantially the walls respectively of the corners of the ingot mold, without however touching them. It has proven to be advantageous to size the blades so that the length of the assembly (2 blades + diameter of the nozzle tube) corresponds to 50-95% of the length, respectively of the width or even to the diagonal of the mold. It is understood that the length of the blades will be limited according to the flowability of the metal, to avoid solidification of the latter in the area of the surface of the bath.
  • a first embodiment of the nozzles according to the invention provides blades in the form of a parallelepiped, while according to a second embodiment the blades may have fins which touch the central tube of the nozzle and which are directed towards the bottom. These fins help to slow down the rotation of the metal in the critical zone i.e. at the metal-slag interface as well as below said zone.
  • a third embodiment provides fins which have a helical shape directed upside down in the direction of the rotary movement which is printed on the liquid metal.
  • the nozzles can also be provided, according to a particularly advantageous embodiment, with a mechanical drive system which imparts to them a rotational movement in the opposite direction to that which is caused to be carried out with liquid metal. .
  • the nozzles according to the invention may on the one hand be in one piece. On the other hand it is it is it is possible to mount the blades individually on a ring which surrounds the central tube of a conventional nozzle. This second possibility brings a certain flexibility and savings since it allows the use of ordinary known nozzles.
  • FIG. 1 shows a view from above on a nozzle according to the invention
  • FIG. 2 shows a side section through the same nozzle
  • FIGS. 3 and 4 show side sections of nozzles which have blades with straight fins resp. helical.
  • FIG. 1 In fig. 1 is shown the section of an ingot mold (1 a) resp. (1 b) in which there is a nozzle according to the invention, which comprises a central pipe (2) and 4 blades (3).
  • the distance from the end of a blade facing a wall of the mold (1 a) can be less than the distance between the end of a blade and a corner of the mold (1 b) , due to the fact that there can be less eddy in the areas of the corners of the molds than in the areas along the middle parts of the walls.
  • Fig. 4 shows a nozzle having blades (3) with fins (5) of helical shape. This helical shape is usefully directed upside down in the direction of rotation (R) of the metal, so that the slag particles are pushed up during the rotation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Molten metal is introduced in a continuous-casting system downwardly into a mold through a nozzle opening downwardly into the mold at an axis to form in the mold a body of molten metal having an upper surface carrying impurities above the mouth of the mold. The body of molten metal is rotated about the axis in the mold. The nozzle is provided generally at the level of the upper surface of the body of molten metal with radially outwardly projecting vanes that prevent the body from rotating about the axis at the upper surface, thereby preventing inclusions from being sucked into the body of molten metal.

Description

La présente invention concerne des busettes plongeantes utilisées en coulée continue électrorotative de métaux liquides, en particulier de l'acier.The present invention relates to plunging nozzles used in electrorotative continuous casting of liquid metals, in particular steel.

En coulée continue la mise en rotation du métal liquide présente des avantages certains par rapport à la coulée statique, notamment celui d'apporter une modification favorable à la structure de solidification en supprimant la zone basaltique au bénéfice d'une structure de solidification plus fine.In continuous casting the rotation of the liquid metal has certain advantages compared to static casting, in particular that of bringing a favorable modification to the solidification structure by eliminating the basaltic zone in favor of a finer solidification structure.

La manière la plus rationnelle pour exécuter le brassage ou la mise en rotation du métal non encore solidifié, tant au niveau de la lingotière que dans la zone du refroidissement secondaire, consiste à mettre le métal en mouvement par voie mécanique, pneumatique ou encore a l'aide d'un champ électromagnétique. Ce dernier peut être cree par un ou plusieurs inducteurs que l'on positionne autour de la lingotière ou encore en-dessous de celle-ci, pour engendrer des champs de configurations spécifiques.The most rational way to carry out the stirring or the rotation of the metal not yet solidified, as well at the level of the ingot mold as in the zone of the secondary cooling, consists in putting the metal in movement by mechanical, pneumatic way or with l using an electromagnetic field. The latter can be created by one or more inductors that are positioned around the mold or even below it, to generate fields of specific configurations.

Toutefois, surtout dans le cas de la mise en rotation autour de l'axe de coulée, les inclusions ont tendance à se rassembler dans la zone de l'axe de la barre et à être aspirées dans le métal liquide sous l'effet du vortex crée. On obtient de ce fait un produit présentant une zone axiale à concentration trop élevée en inclusions.However, especially in the case of the rotation around the axis of casting, the inclusions tend to collect in the area of the axis of the bar and to be sucked into the liquid metal under the effect of the vortex. creates. This produces a product having an axial zone with too high a concentration of inclusions.

Le risque d'une telle pollution de l'acier coulé en continu et mis en rotation est d'autant plus élevé que l'on prévoit de protéger la surface de l'acier liquide par des laitiers de compositions choisies, p.ex. dans le cadre d'un traitement du métal par ajoutes de calmants et/ou d'éléments d'alliage.The risk of such pollution of steel continuously cast and rotated is all the higher when it is planned to protect the surface of the liquid steel by slags of selected compositions, eg in as part of a metal treatment by adding painkillers and / or alloying elements.

Suivant la nuance du métal à couler et le traitement en lingotière éventuellement choisi il est connu d'introduire le métal en fusion en-dessous du niveau du bain dans la lingotière au moyen d'une busette dont l'orifice est immergé de sorte à réduire le risque d'entraînement de laitier par effet vortex au sein du métal qui existe lors du déversement du jet de coulée dans le centre de rotation. Or, l'effet vortex ne saurait être éliminé à l'aide des busettes connues qui consistent généralement en une espèce d'entonnoir dont la partie inférieure plonge sous la surface de l'acier liquide. Etant donné que le métal tourne autour des parois immergées de la busette, l'effet vortex subsiste et l'on peut observer qu'il y a entraînement de particules de laitier au sein du métal.Depending on the nuance of the metal to be poured and the treatment in the ingot mold if desired, it is known to introduce the molten metal below the level of the bath into the ingot mold by means of a nozzle, the orifice of which is immersed so as to reduce the risk of slag entrainment by vortex effect within the metal which exists during the pouring of the pouring jet into the center of rotation. However, the vortex effect cannot be eliminated using known nozzles which generally consist of a kind of funnel, the lower part of which dips beneath the surface of the liquid steel. Since the metal rotates around the immersed walls of the nozzle, the vortex effect remains and it can be observed that there is entrainment of slag particles within the metal.

Le but de l'invention consistait donc à imaginer et à développer un dispositif permettant la conduite d'une coulée continue électrorotative avec protection de la surface du métal par des laitiers, tout en évitant les risques décrits qui sont liés à l'effet vortex dû à la mise en rotation du métal dans la lingotière.The object of the invention therefore consisted in imagining and developing a device allowing the conduct of a continuous electrorotative casting with protection of the metal surface by slag, while avoiding the risks described which are linked to the vortex effect due when the metal rotates in the mold.

Ce but est pleinement atteint par des busettes plongeantes qui consistent notamment en un tube central comportant une partie supérieure dans laquelle aboutit le jet de coulée et une partie inférieure qui plonge dans le métal liquide et qui sont caractérisées en ce qu'elles comprennent des pales exterieur au tube central, radiales par rapport à l'axe de la lingotière, lesquelles pales s'appuient contre le tube central et plongent du moins partiellement sous la surface du métal liquide.This object is fully achieved by plunging nozzles which consist in particular of a central tube comprising an upper part in which the pouring jet ends and a lower part which plunges into the liquid metal and which are characterized in that they include external blades to the central tube, radial with respect to the axis of the ingot mold, which blades press against the central tube and plunge at least partially under the surface of the liquid metal.

L'idée est à la base de la présente invention consiste à utiliser un dispositif qui ne gêne pas notablement la mise en rotation proprement dite du métal liquide coulé en continu, tout en opposant un frein mécanique à la zone qui comprend la surface du métal sur laquelle surnage une scorie ou des laitiers protecteurs. Ce frein mécanique agit donc en particulier sur la zone de l'interface métal-laitier dans ce sens qu'il immobilise ce dernier, ce qui empêche la formation d'un vortex dû à la rotation du métal liquide, et par là supprime l'entraînement au sein du métal de particules non-métalliques.The idea is at the base of the present invention consists in using a device which does not significantly hamper the actual rotation of the liquid metal continuously cast, while opposing a mechanical brake to the zone which comprises the surface of the metal on which floats a slag or protective slag. This mechanical brake therefore acts in particular on the area of the metal-slag interface in the sense that it immobilizes the latter, which prevents the formation of a vortex due to the rotation of the liquid metal, and thereby eliminates the entrainment within the metal of non-metallic particles.

Suivant l'invention on peut prévoir une busette qui comporte 4 pales s'étendant soit vers les milieux des 4 parois de la lingotière, soit vers les 4 coins de celle-ci. Les dimensions des pales sont choisies selon la disposition de la busette dans la lingotière de manière à ce que les extrémités des pales se rapprochent sensiblement des parois respectivement des coins de la lingotière, sans toutefois les toucher. Il s'est avéré avantageux de dimensionner les pales de manière à ce que la longueur de l'ensemble (2 pales + diamètre du tube de la busette) corresponde à 50-95% de la longueur, respectivement de la largeur ou encore à la diagonale de la lingotière. Il est bien entendu que l'on limitera la longueur des pales selon la coulabilité du métal, pour éviter une solidification de ce dernier en zône de la surface du bain.According to the invention, it is possible to provide a nozzle which has 4 blades extending either towards the middle of the 4 walls of the mold, or towards the 4 corners of the latter. The dimensions of the blades are chosen according to the arrangement of the nozzle in the ingot mold so that the ends of the blades approach substantially the walls respectively of the corners of the ingot mold, without however touching them. It has proven to be advantageous to size the blades so that the length of the assembly (2 blades + diameter of the nozzle tube) corresponds to 50-95% of the length, respectively of the width or even to the diagonal of the mold. It is understood that the length of the blades will be limited according to the flowability of the metal, to avoid solidification of the latter in the area of the surface of the bath.

Une première forme d'exécution des busettes suivant l'invention prévoit des pales en forme d'un parallélépipède, tandis que selon une deuxième forme d'exécution les pales peuvent présenter des ailettes qui attouchent le tube central de la busette et qui sont dirigées vers le bas. Ces ailettes contribuent à freiner la rotation du métal en zone critique c.à.d. à l'interface métal-laitier ainsi qu'en dessous de ladite zone. Une troisième forme d'exécution prévoit des ailettes qui présentent une forme hélicoïdale dirigée à l'envers du sens du mouvement rotatoire que l'on imprime au métal liquide.A first embodiment of the nozzles according to the invention provides blades in the form of a parallelepiped, while according to a second embodiment the blades may have fins which touch the central tube of the nozzle and which are directed towards the bottom. These fins help to slow down the rotation of the metal in the critical zone i.e. at the metal-slag interface as well as below said zone. A third embodiment provides fins which have a helical shape directed upside down in the direction of the rotary movement which is printed on the liquid metal.

Dans cet ordre d'idées on peut également doter les busettes suivant une forme d'exécution particulièrement avantageuse, d'un système mécanique d'entraînement qui leur imprime un mouvement de rotation de sens opposé à celui que l'on fait exécuter au métal liquide.In this order of ideas, the nozzles can also be provided, according to a particularly advantageous embodiment, with a mechanical drive system which imparts to them a rotational movement in the opposite direction to that which is caused to be carried out with liquid metal. .

Les busettes suivant invention peuvent d'une part être d'une seule pièce. D'un autre côté il est possible de monter les pales individuellement sur un anneau qui entoure le tube central d'une busette conventionnelle. Cette deuxième possibilité apporte une certaine flexibilité et des économies étant donné qu'elle permet l'utilisation de busettes ordinaires connues.The nozzles according to the invention may on the one hand be in one piece. On the other hand it is it is possible to mount the blades individually on a ring which surrounds the central tube of a conventional nozzle. This second possibility brings a certain flexibility and savings since it allows the use of ordinary known nozzles.

D'autres avantages apparaîtront de la description des dessins où la fig. 1 montre une vue d'en haut sur une busette suivant l'invention, la fig. 2 représente une coupe latérale à travers la même busette, tandis que les fig. 3 et 4 montrent des coupes latérales de busettes qui comportent des pales présentant des ailettes droites resp. hélicoïdales.Other advantages will appear from the description of the drawings in which FIG. 1 shows a view from above on a nozzle according to the invention, FIG. 2 shows a side section through the same nozzle, while FIGS. 3 and 4 show side sections of nozzles which have blades with straight fins resp. helical.

En fig. 1 il est représenté la section d'une lingotière (1 a) resp. (1 b) dans laquelle se trouve une busette suivant l'invention, qui comporte un tuyau central (2) et 4 pales (3). On remarque que la distance de l'extrémité d'une pale faisant face à une paroi de la lingotière (1 a) peut être plus petite que la distance entre l'extrémité d'une pale et un coin de la lingotière (1 b), en raison du fait que l'on peut prévoir moins de remous dans les zones des coins des lingotières que dans les zones longeant les parties médianes des parois. On est donc libre de prévoir les mêmes busettes disposées soit en croix, suivant (1 a), soit en diagonale suivant (1 b), à l'intérieur d'une lingotière de coulée continue.In fig. 1 is shown the section of an ingot mold (1 a) resp. (1 b) in which there is a nozzle according to the invention, which comprises a central pipe (2) and 4 blades (3). Note that the distance from the end of a blade facing a wall of the mold (1 a) can be less than the distance between the end of a blade and a corner of the mold (1 b) , due to the fact that there can be less eddy in the areas of the corners of the molds than in the areas along the middle parts of the walls. We are therefore free to provide the same nozzles arranged either crosswise, along (1 a), or diagonally along (1b), inside a mold for continuous casting.

En fig. 2 on reconnaît les pales (3) en coupe latérale et la fig. 3 montre des pales (3) comportant des ailettes (4). On se rend facilement compte du rôle que jouent ces ailettes (4) dans le freinage de la rotation du métal situé immédiatement en dessous de l'interface métal-laitier (I). Ce freinage réduit donc la propension à l'entraînement de particules de laitier au sein du métal.In fig. 2 we recognize the blades (3) in side section and fig. 3 shows blades (3) comprising fins (4). It is easy to see the role that these fins (4) play in braking the rotation of the metal located immediately below the metal-slag interface (I). This braking therefore reduces the propensity for entrainment of slag particles within the metal.

La fig. 4 montre une busette présentant des pales (3) à ailettes (5) de forme hélicoïdale. Cette forme hélicoïdale est utilement dirigée à l'envers du sens de la rotation (R) du métal, si bien que les particules de laitier sont refoulées vers le haut au cours de la rotation.Fig. 4 shows a nozzle having blades (3) with fins (5) of helical shape. This helical shape is usefully directed upside down in the direction of rotation (R) of the metal, so that the slag particles are pushed up during the rotation.

Il est évident que rien n'empêche dans le present contexte de prévoir des busettes dont la partie terminale du tube, submergée, présente une courbure dans le sens de la rotation, afin d'accentuer celle-ci, grâce à la force dynamique du jet de coulée. Bien qu'une telle courbure augmente la propension à la formation d'un vortex à la surface du métal mis en rotation, les busettes dotées suivant l'invention de pales droites, à ailettes droites ou hélicoïdales et le cas échéant d'un système mécanique d'entraïnement rotatif, sont parfaitement capables d'agir de manière effective à l'encontre de cette perturbation.It is obvious that nothing prevents in the present context from providing nozzles whose end part of the tube, submerged, has a curvature in the direction of rotation, in order to accentuate it, thanks to the dynamic force of the jet. of casting. Although such a curvature increases the propensity for the formation of a vortex on the surface of the metal rotated, the nozzles provided according to the invention with straight blades, with straight or helical fins and if necessary a mechanical system of rotary drive, are perfectly capable of acting effectively against this disturbance.

Claims (10)

1. Nozzles for continuous electrorotative casting of molten metals, especially steel, that comprise a central tube (2) having an upper part wherein the liquid metal is introduced and a lower part plunging in the cast metal, characterized in that they are provided with vanes (3) projecting outwardly to the central tube (2) and radially to the axis of the casting mould, which vanes are resting against the central tube (2) and plunge at least partly under the liquid metal surface.
2. Nozzles according to claim 1, characterized in that four vanes (3) extend to the middles of the casting mould sides.
3. Nozzles according to claim 1, characterized in that four vanes (3) extend to the casting mould corners.
4. Nozzles according to the claims 1-3, characterized in that the total of two vanes plus the diameter of the central tube of a nozzle is equal to 50-95% of the casting mould diameter resp. diagonal.
5. Nozzles according to the claims 1-4, characterized in that the vanes (3) are parallel- epipedal.
6. Nozzles according to the claims 1-5, characterized in that the vanes (3) have wings (4, 5) leaning against the central tube and stretching downwardly.
7. Nozzles according to claim 6, characterized in that the wings (5) are helically twisted in a direction opposite to the rotation of the liquid metal.
8. Nozzles according to claims 1-7, characterized in that they are provided with a mechanical system that rotates them in an opposite sense to that (R) of the liquid metal.
9. Nozzles according to claims 1-8, characterized in that they are made in one single piece.
10. Nozzles according to the claims 1-8, characterized in that the vanes are mounted on a collar fitting over the central tube (2) of a conventional nozzle.
EP80630055A 1979-12-17 1980-11-26 Pouring tubes for continuous electrorotative casting of metals Expired EP0030910B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80630055T ATE4965T1 (en) 1979-12-17 1980-11-26 SLIDE TUBES FOR ELECTRIC ROTARY CONTINUOUS CASTING OF METALS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU82001 1979-12-17
LU82001A LU82001A1 (en) 1979-12-17 1979-12-17 DIVING NOZZLES USED IN CONTINUOUS ELECTROROTATIVE METAL CASTING

Publications (2)

Publication Number Publication Date
EP0030910A1 EP0030910A1 (en) 1981-06-24
EP0030910B1 true EP0030910B1 (en) 1983-10-12

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EP80630055A Expired EP0030910B1 (en) 1979-12-17 1980-11-26 Pouring tubes for continuous electrorotative casting of metals

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US (1) US4387761A (en)
EP (1) EP0030910B1 (en)
AT (1) ATE4965T1 (en)
CA (1) CA1153864A (en)
DE (1) DE3065321D1 (en)
LU (1) LU82001A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SI3317034T1 (en) * 2015-07-02 2020-09-30 Vesuvius U S A Corporation Tundish outlet modifier
CN108247033B (en) * 2018-01-17 2020-07-21 武汉科技大学 Rotational flow water feeding port for continuous casting tundish
EP3900855A1 (en) * 2020-04-21 2021-10-27 Refractory Intellectual Property GmbH & Co. KG Rotatable insert and submerged nozzle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB748709A (en) * 1953-06-22 1956-05-09 Siegfried Junghans Improvements in or relating to a method of continuously casting metals by means of cooled throughflow moulds
FR2150723A1 (en) * 1971-09-01 1973-04-13 Centrifugation Et Continuous casting of circular bars - rotation of molten metal in mould improves properties of cast bar
FR2156373A1 (en) * 1971-10-16 1973-05-25 Nippon Steel Corp Spin caster mechanism - for molten metal
FR2156751A1 (en) * 1971-10-21 1973-06-01 Voest Ag

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1802884B2 (en) * 1968-10-12 1973-04-05 Demag Ag, 4100 Duisburg PROCESS FOR FEEDING THE CAST METAL INTO THE CONTINUOUS CASTING COCIL OF A METAL, IN PARTICULAR STEEL CONTINUOUS CASTING PLANT
CA887556A (en) * 1968-12-12 1971-12-07 Breckenridge Jack Method and apparatus for providing slag for continuous casting molds

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB748709A (en) * 1953-06-22 1956-05-09 Siegfried Junghans Improvements in or relating to a method of continuously casting metals by means of cooled throughflow moulds
FR2150723A1 (en) * 1971-09-01 1973-04-13 Centrifugation Et Continuous casting of circular bars - rotation of molten metal in mould improves properties of cast bar
FR2156373A1 (en) * 1971-10-16 1973-05-25 Nippon Steel Corp Spin caster mechanism - for molten metal
FR2156751A1 (en) * 1971-10-21 1973-06-01 Voest Ag

Also Published As

Publication number Publication date
LU82001A1 (en) 1981-07-23
DE3065321D1 (en) 1983-11-17
ATE4965T1 (en) 1983-10-15
CA1153864A (en) 1983-09-20
US4387761A (en) 1983-06-14
EP0030910A1 (en) 1981-06-24

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