EP3060365B1 - Cristalliseur pour coulée en continu et procédé de production correspondant - Google Patents

Cristalliseur pour coulée en continu et procédé de production correspondant Download PDF

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Publication number
EP3060365B1
EP3060365B1 EP14793898.9A EP14793898A EP3060365B1 EP 3060365 B1 EP3060365 B1 EP 3060365B1 EP 14793898 A EP14793898 A EP 14793898A EP 3060365 B1 EP3060365 B1 EP 3060365B1
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EP
European Patent Office
Prior art keywords
component
crystallizer
welding
grooves
longitudinal
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Not-in-force
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EP14793898.9A
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German (de)
English (en)
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EP3060365A1 (fr
Inventor
Gianbruno LUVARA'
Alfredo Poloni
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.)
Danieli and C Officine Meccaniche SpA
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Danieli and C Officine Meccaniche SpA
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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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/055—Cooling the moulds
    • 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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/057—Manufacturing or calibrating the moulds

Definitions

  • the present invention concerns a crystallizer for continuous casting provided with a plurality of channels made in its walls and through which a cooling liquid is made to pass.
  • the crystallizer can be used in the iron and steel industry to cast billets or blooms of any type and section, preferably square or rectangular, but also polygonal in general, or round.
  • applications of the crystallizer to cast thin, medium or thick slabs are not excluded.
  • Crystallizers for casting billets or blooms having a tubular body inside which a liquid metal is cooled. It is also known to provide that the tubular body is provided, in the thickness of its walls and for at least part of its longitudinal development, with a plurality of channels of a shape and size suitable for the passage of a cooling liquid. The channels can be interconnected to each other to define a closed cooling circuit.
  • the operations to make the cooling channels on the length of the tubular crystallizer are particularly complex and costly in terms of time and equipment used. They require complex holing and finishing operations to define passage channels which optimize the flow of the cooling liquid. These entail high costs and long production times of the crystallizer.
  • Crystallizers for billets, blooms or slabs comprising a first component, or internal component, with an oblong development, and a second component, or external component associated externally and in contact with the external surface of the first component.
  • the first component and the second component can both be tubular in shape and be inserted one inside the other to define the casting cavity, or they can both consist of plates disposed resting one against the other to define the section shape of a wall of the crystallizer.
  • the first component is provided, on its external perimeter surface, with a plurality of grooves open toward the outside and made along at least a part of its length.
  • the second component is associated with the first component by means of mechanical connection means, for example using bolts, pins, nuts, tie rods or similar, to maintain a close contact between the external surface of the first (internal) component and the internal surface of the second (external) component.
  • the grooves are therefore closed externally by the internal wall of the second component, thus defining closed channels through which the cooling liquid is made to circulate during use.
  • the first internal component consists of plates provided with a plurality of holes made through in their thickness
  • the second external component also consisting of plates
  • connection elements for example, welded screws or studs disposed in a mating position with the position of the through holes
  • the first component and the second component are coupled to each other by inserting the connection elements in the through holes and clamping them for example with threaded nuts.
  • crystallizers with multiple components and provided with cooling channels are described, by way of example, in documents JP-A-2000.107836 , GB-A-2.055.644 and DE-A-39.42.704 .
  • these known solutions are also particularly complex and costly to make, because of the difficult mechanical working needed.
  • the second external component can comprise a plurality of plates, each of which is associated with an external surface portion of the first internal component by means of said connection means.
  • the operations to assemble the first and the second component are particularly complex and long. Indeed, to guarantee the correct hydraulic seal of the cooling channels in each surface zone containing the grooves, it is necessary to provide a large number of connection means and perimeter seals with O-rings to guarantee the seal of the cooling water by the grooves. This is necessary to take into account the different thermal dilations to which the first component is subjected with respect to the second component.
  • One purpose of the present invention is to make a crystallizer for continuous casting that guarantees that high-quality cast products are obtained, and also allows to cast products with high productivity and in total safety.
  • Another purpose is to make a crystallizer for continuous casting that has a highly efficient heat exchange and long working life.
  • Another purpose of the present invention is to perfect a method to make a crystallizer for continuous casting of the type indicated above that is simple and quick to make and allows to reduce the production costs of the crystallizer.
  • the Applicant has devised, tested and embodied the present invention to overcome the shortcomings of the state of the art and to obtain these and other purposes and advantages.
  • a crystallizer for continuous casting comprises at least a wall provided with a first component, or internal component, having a surface in which a plurality of grooves is made, separated by protruding portions.
  • the wall is also provided with a second component, or external component, coupled to the surface of the first component to close the grooves and to define cooling channels suitable to allow the passage of a cooling liquid.
  • longitudinal welding beads or segments are made, without using any filler material, in order to reciprocally connect the first component and the second component and to define the cooling channels.
  • welding means that the join zones between the first and second component are subjected, only in the join zone, to a high thermal energy such as to obtain a localized fusion of the materials between the first component and the second component, so as to obtain a reciprocal union thereof.
  • the welding is the concentrated electronic beam type.
  • the thermal energy needed for melting the material can be obtained, merely by way of example and not restrictive of the present invention, due to the Joule effect, by ultrasounds, laser beam, known as laser beam welding, by an electronic beam, or by other forms of thermal energy production.
  • Welding using longitudinal welding beads between the protruding portions of the first component and the coupling surface of the second component with the first component guarantees a water-tight seal of the cooling channels even in the case of high working pressures to which the cooling liquid is subjected during use.
  • other beads may also be provided, for example transverse or with other geometries, able to increase the heat exchange.
  • connection means such as for example threaded connections which as well as increasing the number of components that make up the crystallizer, also increase its production times and its costs.
  • removable type connections can be used during the manufacture of the crystallizer.
  • the grooves extend longitudinally along a longitudinal axis and the longitudinal welding beads extend for a large part of the length of the second component, that is, for at least half the overall length of the second component.
  • the present invention also concerns the method for making a crystallizer for continuous casting as described above.
  • a portion of a wall 11 of a crystallizer 10 for continuous casting is shown, by way of example, which comprises a first component 12, internal during use, and a second component 13, external during use.
  • the first component 12 comprises a first surface 14, internal during use, which during the normal functioning of the crystallizer 10 is in contact with the metal material that is cast, and a second surface 15, opposite the first surface 14 and external during use.
  • a plurality of grooves 16 are made in the second surface 15 of the first component 12, and develop along a longitudinal axis Z.
  • the longitudinal axis Z substantially coincides with the direction in which, during use, the metal material is cast.
  • the grooves 16 are open toward the outside along the longitudinal axis Z and are separated by protruding portions 17, each of which defines the lateral walls of two adjacent grooves 16 and, with their protruding zone, that is, the outermost one, the interface zone with the first component 12.
  • the grooves 16 have a substantially rectangular section shape, possibly with rounded edges, although other section shapes are not excluded.
  • the grooves 16 have a trapezoid section shape, that is, dovetailed.
  • the grooves 16 are disposed with the larger base of the trapezoid section facing toward the internal part of the crystallizer 10, and with the smaller base of the trapezoid section facing toward the second surface 15. In this way the heat exchange capacity toward the internal part of the crystallizer 10 is increased, given the greater heat exchange surface and the greater quantity of cooling liquid in circulation.
  • the second component 13 is coupled to the second surface 15 of the first component 12, to close the grooves 16 laterally and to define cooling channels 20 in which a cooling liquid is made to circulate, as will be described hereafter.
  • the cooling channels 20 are configured to resist pressure stresses exerted by the cooling liquid of about 20 bar.
  • the second component 13 is located resting against the protruding portions 17 of the first component 12.
  • the second component 13 is coupled with the first component 12 by welding techniques, without using filler materials, and which provide to make longitudinal welding beads, hereafter welding beads 21, between the second component 13 and the protruding portions 17 of the first component 12, so as to ensure the mechanical and hydraulic seal of the cooling channels 20.
  • the welding beads 21 have a penetration depth P of the welding in the protruding portions 17 that is comprised between 3mm and 10mm, preferably between 4mm and 7mm, even more preferably between 4.5mm and 6mm.
  • the welding beads 21 extend along the longitudinal axis Z for at least a part of the overall length of the second component 13, that is, for at least half the length of the second component 13, for example for a length comprised between 60% and 100% of the overall length of the crystallizer 10.
  • a preferred form of embodiment of the present invention provides that the welding beads 21 extend continuously for the entire length of the crystallizer 10, that is, for the entire length of the second component 13.
  • Some forms of embodiment of the present invention can provide that, in correspondence with at least some of the protruding portions 17 of the first component 12, more than one welding bead 21 is made.
  • the welding beads 21 have a width comprised between 2mm and 8mm, preferably between 2mm and 6mm, more preferably between 3mm and 5mm.
  • the welding beads 21 can have a width equal to or less than the width of each protruding portion 17.
  • the crystallizer 10 comprises a plurality of walls 11, in this case four walls 11, reciprocally connected.
  • first components 12 of each of the walls 11 are made in a single body with each other, to define a tubular body 22 with a substantially rectangular tubular section, in this case square, in which, during use, the metal to be cast passes.
  • Providing a tubular body 22 in a single body not only increases the mechanical resistance to deformations but also allows to obtain a continuous heat exchange over the whole cross section of the crystallizer 10. In fact, in this case, possible discontinuities are prevented, which alter the heat transfer capacity and which generate zones of differentiated cooling in the crystallizer. Such zones would be particularly harmful for the final quality of the metal product cast.
  • Beveled edges 24 are made on the external surface of the tubular body 22, which connect the adjacent first components 12 to each other.
  • angle of the beveled edges 24 is comprised between 30° and 60°, preferably between 40° and 50°, in this case about 45°.
  • the internal perimeter surface of the tubular body 22 has perimeter edges that are suitably rounded to prevent, in said zones, any intensification of the cooling action on the metal cast.
  • the tubular body 22 has a polygonal section shape, chosen also depending on the type of metal product that the crystallizer 10 has to obtain. In this case too, the edges between adjacent walls 11 are suitably beveled.
  • each side of the first component 12 the respective second components 13 are connected, in the way indicated above.
  • the second components 13, in the form of embodiment shown in fig. 2 each comprise a plate 23, substantially flat, with an overall length equal to or less than the longitudinal extension of the grooves 16, and a width L less than the width B of the wall 11.
  • a reciprocal separation gap G is defined between them.
  • the reciprocal separation gap G between the plates 23 is defined by the thickness of the adjacent plates 23 and the beveled edge 24.
  • each plate 23 is connected to the tubular body 22 so as to prevent any reciprocal contact with the other plates 23 adjacent to it, even when the crystallizer 10 dilates thermally.
  • edges can be compared to a hinge around which two adjacent walls 11 can mutually rotate following both thermal and mechanical stresses to which the crystallizer 10 is subjected during use.
  • each of the walls 11 may also be made in a single body with each other, to define another tubular body 25 into which the tubular body 22 is inserted.
  • the wall 11 therefore has a substantially tubular configuration, open at its two ends.
  • This solution allows to define a crystallizer 10 that is extremely compact and resistant to mechanical and thermal stresses.
  • the wall 11 described above constitutes a part of a crystallizer 10 of the type with plates, an example of which is shown in fig. 4 .
  • the first component 12 and the second component 13 both have a mainly flat development, except for possible shaped portions, for example to allow the insertion of a nozzle for the molten metal.
  • the wall 11 in its entirety has a substantially flat shape.
  • the first component 12, as in figs. 1-4 can be made of copper or its alloys, such as a copper-silver alloy, or a copper-chrome-zirconium alloy or copper-nickel-beryllium.
  • the first surface 14 of the first component 12 can be covered with a covering layer with the function of increasing resistance to wear, and also to allow low-friction sliding of the molten metal.
  • the covering layer is made of material comprising an alloy of chrome or nickel-chrome.
  • the second component 13 can be made of a copper-silver alloy or copper-chrome-zirconium or tin bronze or aluminum bronze.
  • the first component 12 has a thickness comprised between 15mm and 25mm, while the second component 13 has a thickness comprised between 4mm and 10mm.
  • the ends of the crystallizer 10 are in turn connected to support and oscillation means 26 of the crystallizer 10 as shown in fig. 5 .
  • Each of the support and oscillation means 26, connected to one of the ends of the tubular body 22, comprises a first flange 27 and a second flange 28, disposed one above the other and reciprocally connected to each other.
  • hydraulic seal means 29 are interposed, in this case an O-ring.
  • the grooves 16 extend for a determinate length which is less than the whole longitudinal development of the second component 13.
  • each groove 16 is in turn connected to respective connection channels 30 made in the second flange 28.
  • the connection channels 30 are in turn connected to the cooling circuit to determine the circulation of the cooling liquid.
  • the ends of the grooves 16 terminate at the upper part rounded toward the connection channels 30, to reduce the losses of load due to the flow of the cooling liquid.
  • the method to make the crystallizer 10 for continuous casting shown in figs. 1 and 2 provides a first step of making the first component 12, a second step of making the second component 13 and a third step in which the first component 12 and the second component 13 are coupled with each other.
  • the first step of making the first component 12, in this case the tubular body 22, provides that, starting from a tubular section bar, already shaped and with the desired shape and sizes, the grooves 16 are made on its external surface 15.
  • the grooves 16 are made by chip removal operations, for example using a multi-toothed miller to reduce execution times.
  • Making the grooves 16 is particularly easy and quick compared with making the cooling channels 20 directly in the thickness of the wall 11.
  • An operation is also provided to make the beveled edges 24, for example by operations to remove material.
  • tubular body 22 is curved with respect to its axis of development, with a radius of curvature substantially equal to that of the continuous casting line.
  • the curving operation is obtained by plastic deformation with the aid of a mold and/or press.
  • the second step provides to make the second components 13 to be coupled with the first components 12.
  • the second components 13, in the form of plates 23, are obtained by shearing to size a flat plate.
  • a first pair of plates 23, which during use are disposed opposite each other, is sheared with a substantially rectangular plan shape, while the other pair of plates 23 is sheared so as to follow the curvature conferred on the tubular body 22 in the first step.
  • the third step it is provided to couple the first component 12 and the second component 13 with each other.
  • the welding beads 21 can be made using one of the welding techniques chosen from a group comprising laser welding, electronic beam welding, ultrasound welding, resistance welding, plasma welding, friction stir welding (FSW).
  • welding techniques chosen from a group comprising laser welding, electronic beam welding, ultrasound welding, resistance welding, plasma welding, friction stir welding (FSW).
  • the welding can be the fiber laser type which allows to reach wavelengths less than or equal to 1 ⁇ m, particularly efficacious for making welding beads 21 on copper materials or alloys thereof.
  • the third step comprises a sub-step of pre-heating the second component 13, and possibly also the first component 12, before the welding is carried out.
  • Preheating can be made up to a maximum temperature of about 400°C, preferably comprised between 150 and 250°C. It is obvious that the intensity of heating must be such that it does not modify the micro-crystalline structure of the materials and their mechanical properties.
  • the welding step proper it is possible to use a protection gas to protect the welding bath, so that it does not come into contact with the oxygen and therefore oxidation is prevented.
  • the welding can be carried out in a controlled atmosphere environment.
  • the crystallizer 10 has a tubular conformation and is provided with a first end 32, or entrance end, and a second end 33, or exit end, opposite the first end 32, into/from which respectively the metal material cast is introduced and discharged.
  • the first end 32 can be provided with at least an attachment seating 34, configured to allow to connect the crystallizer 10 to the support and oscillation means 26.
  • the first component 12 and the second component 13 are both defined by the walls 11 of a respective tubular body, as shown in figs. 3 and 6 .
  • the first component 12 is defined by the walls 11 of a tubular body 22 and on its external surface the plates 23 are associated, which constitute the second component 13, for example as described with reference to figs. 2 and 7 .
  • the crystallizer 10 comprises a covering layer 31 that is wound on the surface, external during use, of the crystallizer 10, and for at least part of its length.
  • the covering layer 31 exerts on the second component 13 an action of compression and of containing the dilations.
  • the covering layer 31 ensure the connection resistance of the plates 23 and the first component 12.
  • the covering layer 31 is wound for only a part of the length of the crystallizer 10, for example for a length comprised between 20% and 50% of its overall length starting from the entrance end 32.
  • the covering layer 31 is wound over the entire length of the crystallizer 10.
  • the covering layer 31 When the covering layer 31 is associated with the external surface of the crystallizer 10 in proximity to the first end 32, it confers on the crystallizer 10 a predefined mechanical resistance in proximity to the zone of the meniscus, that is, in correspondence with the zone where the free level of the molten metal is positioned.
  • the covering layer 31 is wound on the external surface of the crystallizer 10 in a more internal zone than that where there is the attachment seating 34, evaluated along the longitudinal extension of the crystallizer.
  • the covering layer 31 starts at least 50mm from the end edge of the first end 32.
  • the covering layer 31 can comprise a plurality of filaments, tightly wound one adjacent to the other, overlapping and drowned in a polymeric covering material, for example a polymer resin.
  • the filaments can be made of a material chosen from at least carbon fibers, glass fibers, aramid fibers, Kevlar or similar or comparable fibers.
  • the polymer resin can be the type that is resistant to high temperatures, that is, equal to or more than 100°C, for example a polymer chosen from the group comprising polyamide, epoxy or polyester resins.
  • the covering layer 31 can be obtained using filament winding techniques.
  • the covering layer 31 can be obtained using fibers pre-impregnated with polymer resin which is then polymerized.
  • the covering layer 31 can develop axially, that is, parallel to the longitudinal axis Z, for a height of at least 300mm or more, and has a thickness variable between 8mm and 20mm.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Claims (16)

  1. Cristalliseur pour coulée continue comprenant au moins une paroi (11) munie d'un premier composant (12) ayant une surface externe (15) dans laquelle sont formées une pluralité de rainures (16), séparées par des parties faisant saillie (17), et d'un composant (13) couplé à ladite surface externe (15) du premier composant (12) pour fermer lesdites rainures (16) et définir des canaux de refroidissement (20) appropriés pour permettre le passage d'un liquide de refroidissement, caractérisé en ce qu'entre ledit second composant (13) et lesdites parties faisant saillie (17) dudit premier composant (12) sont réalisés des cordons de soudure longitudinaux (21), sans utiliser un quelconque matériau de remplissage, afin de connecter de manière réciproque ledit premier composant (12) et ledit second composant (13) et de définir lesdits canaux de refroidissement (20).
  2. Cristalliseur selon la revendication 1, caractérisé en ce que ledit soudage est choisi dans un groupe comprenant un soudage par faisceau laser, un soudage par faisceau électronique, un soudage par ultrasons, un soudage par résistance, un soudage par plasma, un soudage par friction-malaxage.
  3. Cristalliseur selon la revendication 1 ou 2, caractérisé en ce que lesdites rainures (16) s'étendent longitudinalement le long d'un axe longitudinal (Z) et en ce que lesdits cordons de soudure longitudinaux (21) s'étendent sur au moins une partie de la longueur dudit second composant (13).
  4. Cristalliseur selon la revendication 3, caractérisé en ce que lesdits cordons de soudure longitudinaux (21) s'étendent de manière continue sur toute la longueur dudit second composant (13).
  5. Cristalliseur selon l'une quelconque des revendications précédentes, caractérisé en ce que lesdits cordons de soudure longitudinaux (21) ont une profondeur de pénétration (P) de la soudure dans lesdites parties faisant saillie (17) comprise entre 3 mm et 10 mm, de préférence entre 4 mm et 7 mm, de manière encore plus préférée entre 4,5 mm et 6 mm.
  6. Cristalliseur selon l'une quelconque des revendications précédentes, caractérisé en ce qu'en correspondance avec au moins certaines desdites parties faisant saillie (17) du premier composant (12) sont réalisés plus d'un cordon de soudure longitudinal (21).
  7. Cristallisateur selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend une pluralité de parois (11) connectées de manière réciproque, et en ce que les premiers composants (12) de chacune desdites parois (11) sont réalisés dans un corps unique les uns par rapport aux autres de manière à définir un corps tubulaire (22) dans lequel le métal à couler passe en cours d'utilisation.
  8. Cristalliseur selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il a une forme sensiblement tubulaire et en ce qu'il comprend une couche de recouvrement (31) qui est enroulée sur sa surface, de manière externe en cours d'utilisation, et sur au moins une partie de sa longueur.
  9. Cristalliseur selon la revendication 8, caractérisé en ce qu'il est pourvu d'une première extrémité (32) et d'une seconde extrémité (33) opposée à la première extrémité (32), et en ce que ladite couche de recouvrement (31) est associée à proximité de ladite première extrémité (32).
  10. Cristalliseur selon la revendication 8 ou 9, caractérisé en ce qu'il comprend une pluralité de filaments enroulés étroitement les uns à côté des autres, se chevauchant et noyés dans un matériau polymère de recouvrement.
  11. Méthode de fabrication d'un cristalliseur (10) pour coulée continue comprenant une première étape de fabrication d'un premier composant (12), au cours de laquelle, sur une surface (15) de celui-ci, une pluralité de gorges (16) sont réalisées, séparées par des parties faisant saillie (17), une deuxième étape de fabrication d'un second composant (13) et une troisième étape de couplage du second composant (13) à ladite surface (15) du premier composant (12) afin de fermer lesdites rainures (16), pour définir des canaux de refroidissement (20) appropriés pour permettre le passage d'un liquide de refroidissement et pour former au moins une paroi (11) dudit cristalliseur (10), caractérisé en ce que pendant ladite troisième étape, entre ledit second composant (13) et lesdites parties faisant saillie (17) dudit premier composant (12) sont réalisés des cordons de soudure longitudinaux (21), sans utiliser de matériau de remplissage, afin de connecter de manière réciproque ledit premier composant (12) et ledit second composant (13) et de définir ledit canaux de refroidissement (20).
  12. Méthode selon la revendication 11, caractérisée en ce que les cordons de soudure longitudinaux (21) sont réalisés en utilisant l'une des techniques de soudage choisie dans un groupe comprenant un soudage laser et un soudage par faisceau électronique, un soudage par ultrasons, un soudage par résistance, un soudage par plasma, un soudage par friction-malaxage.
  13. Méthode selon la revendication 11 ou 12, caractérisée en ce que ladite troisième étape comprend une sous-étape de préchauffage du second composant (13), et éventuellement aussi du premier composant (12), avant que le soudage ne soit effectué.
  14. Méthode selon les revendications 11 à 13, caractérisée en ce qu'il est prévu de réaliser ledit cristalliseur (10) de forme sensiblement tubulaire et d'enrouler une couche de recouvrement (31) sur la surface, de manière externe en cours d'utilisation, dudit cristalliseur (10) et sur au moins une partie de sa longueur.
  15. Méthode selon la revendication 14, caractérisée en ce que ladite couche de recouvrement (31) est enroulée sur la surface externe dudit cristalliseur (10) à proximité d'une première extrémité (32).
  16. Méthode selon la revendication 14 ou 15, caractérisée en ce que lors de l'enroulement de ladite couche de recouvrement (31), il est prévu d'enrouler une pluralité de filaments les uns à côté des autres, se chevauchant et noyés dans un matériau polymère de recouvrement.
EP14793898.9A 2013-10-23 2014-10-22 Cristalliseur pour coulée en continu et procédé de production correspondant Not-in-force EP3060365B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000137A ITUD20130137A1 (it) 2013-10-23 2013-10-23 Cristallizzatore per colata continua e metodo per la sua realizzazione
PCT/IB2014/065541 WO2015059652A1 (fr) 2013-10-23 2014-10-22 Cristalliseur pour coulée en continu et procédé de production correspondant

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EP3060365A1 EP3060365A1 (fr) 2016-08-31
EP3060365B1 true EP3060365B1 (fr) 2019-06-05

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IT (1) ITUD20130137A1 (fr)
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Publication number Priority date Publication date Assignee Title
ITUB20150498A1 (it) * 2015-05-05 2016-11-05 Danieli Off Mecc Cristallizzatore per la colata continua
DE102016124801B3 (de) * 2016-12-19 2017-12-14 Kme Germany Gmbh & Co. Kg Kokillenplatte und Kokille
IT201700027045A1 (it) 2017-03-10 2018-09-10 Em Moulds S P A A Socio Unico Cristallizzatore per colata continua e metodo per ottenere lo stesso
CN108838352B (zh) * 2018-05-25 2023-08-22 中冶连铸技术工程有限责任公司 一种双水套结构的结晶器
CN109940141A (zh) * 2019-04-25 2019-06-28 芜湖新兴铸管有限责任公司 方坯结晶器在线调整工艺

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