EP1536900B2 - Procede pour debuter un procedure de coulee - Google Patents

Procede pour debuter un procedure de coulee Download PDF

Info

Publication number
EP1536900B2
EP1536900B2 EP03798105A EP03798105A EP1536900B2 EP 1536900 B2 EP1536900 B2 EP 1536900B2 EP 03798105 A EP03798105 A EP 03798105A EP 03798105 A EP03798105 A EP 03798105A EP 1536900 B2 EP1536900 B2 EP 1536900B2
Authority
EP
European Patent Office
Prior art keywords
casting
strip
velocity
speed
starting
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 - Lifetime
Application number
EP03798105A
Other languages
German (de)
English (en)
Other versions
EP1536900B1 (fr
EP1536900A1 (fr
Inventor
Gerald Hohenbichler
Gerald Eckerstorfer
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.)
SIEMENS VAI METALS Technologies GmbH
Original Assignee
Siemens VAI Metals Technologies GmbH Austria
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=29274633&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1536900(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens VAI Metals Technologies GmbH Austria filed Critical Siemens VAI Metals Technologies GmbH Austria
Priority to AT03798105T priority Critical patent/ATE312676T1/de
Priority to SI200330195T priority patent/SI1536900T1/sl
Publication of EP1536900A1 publication Critical patent/EP1536900A1/fr
Publication of EP1536900B1 publication Critical patent/EP1536900B1/fr
Application granted granted Critical
Publication of EP1536900B2 publication Critical patent/EP1536900B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
    • 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
    • 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
    • B22D11/161—Controlling or regulating processes or operations for automatic starting the casting process

Definitions

  • the invention relates to a method for starting a casting process in a Zweiwalzeng screen thanks without the application of a Anfahrstranges.
  • essentially cooled molds with a continuous mold cavity are used, in which the molten metal introduced on the input side solidifies, at least in the area of contact with the mold cavity walls.
  • a substantially solidified metal strand is withdrawn from the mold.
  • a first filling of the mold cavity is carried out with molten metal, in particular a predominantly vertical orientation of the mold cavity a completely solidified initial piece must be achieved so that the molten metal does not flow through the mold uncontrollably and exits from it.
  • the casting thickness of the metal strand to be produced, the solidification conditions and the amount of heat which can be dissipated through the Ferm cavity walls during the short residence time in the mold are of considerable importance.
  • a starting strand is usually introduced into the mold before the start of casting, which largely but not necessarily completely closes the outlet cross section of the mold cavity and only after the formation of a solid compound of the introduced melt with the Anfahrstrangkopf and a pronounced strand shell with sufficient thickness along the mold cavity walls with a pair of driving rollers from the mold is discharged.
  • This start-up requires at least a new Anfahrstrangkopf coupled to the Anfahrstrang at each restart of the caster.
  • Such a Anfahrstrang as it is used in formed by Breitseitanofficen and narrow side walls strip steel casting molds, for example, from US-A 4,719,960 known.
  • a starter line for the special application in a two-roll lapping plant is in EP-A 208 642 described.
  • This Anfahrstrang contains a dummy head with two flanges formed by thin metal strips, which abut the lateral surfaces of the casting rolls and thus form a space for receiving the inflowing molten metal.
  • the Aus disciplinen the Anfahrstranges and the cast strip from the casting gap formed by the casting rolls takes place.
  • a dummy bar is not absolutely necessary because the open casting gap is bridged within a very short time due to the rapid solidification of the molten metal at the mold walls. Start-up procedures in which no start-up train is required are also already known several times.
  • a starting method is known, in which the two cooperating casting rolls are brought to a start position before pouring, in which no casting gap is present and the casting rolls stand still. Immediately after the start of the melt supply and a first strand shell formation on the two lateral surfaces of the casting rolls they are moved apart on the Railg fauxspalt (strip thickness) and brought the Gleß Ober along a start-up curve on operating casting speed.
  • a starting process with stationary casting rolls is very unreliable because the is-pouring in the melt space can not be measured with the necessary accuracy to the narrowest cross section between the casting rolls. Therefore, neither an increase in force between the two casting rolls nor the degree of filling of the mold is reasonably controllable.
  • a different degree of solidification of the melt along the bandwidth and in particular near the side plate can cause significant Kell Struktur by solidified metal above the narrowest cross-section and subsequently lead to side plate damage. Furthermore, in such a starting method with standing casting rolls, there is an increased risk for sectional strand-shell adhesives in sections on the lateral surface of the casting rolls.
  • a casting method for a two-roll caster is known in which, before the start of the supply of melt, the casting gap between the two casting rolls is set to a value reduced with respect to the operating casting nip.
  • the supply of melt occurs in rotating casting rolls, wherein the casting speed is adjusted so that the thickness of the produced strip is greater than the previously set casting gap.
  • the tendency to drip metal melt is reduced by a reduced casting gap.
  • the ones described above with regard to the JP-A 61-266159 described disadvantages to an increasing extent, in particular the tendency to side plate damage.
  • Object of the present invention is therefore, To avoid the disadvantages of the prior art described above and to propose a method for starting a casting in a two-roll casting device and a device for carrying out the method, wherein the passage of molten metal through the casting gap can be kept low and at the same time the tendency to form wedge and Thickening at the beginning of the cast strip is avoided as possible. At the same time a separation of a first piece of the cast strip, which does not meet the quality requirements of a continuous production to be achieved by the subsequently produced under largely stationary operating conditions band without the need for mechanical separation devices are required.
  • the casting speed is always determined by the casting roll peripheral speed since the strand shells formed and adhered to the casting roll shells are transported at this velocity through the narrowest cross section between the casting rolls and bonded together.
  • the start casting speed is a low casting speed at which, due to the extended residence time of the forming strand shells in the melt space, an increased strand shell growth occurs and therefore the downwardly open casting gap can be bridged particularly quickly.
  • the banding casting speed is a casting speed which depends in particular on the current liquid metal casting level and also on the solidification conditions and the casting roll separation force required due to the steel analysis, in which strip formation and removal of the formed strip take place downwards and are maintained at the largely constant strip forming conditions can be.
  • the molten metal is continuously filled up to the level of the operating casting level, with the belt forming speed continuously increasing with increasing casting level.
  • the casting gap is kept in the claimed process during the entire starting process on the value of the operating casting thickness, there are additional benefits: By a reduced start-casting speed, a low band throughput is achieved until complete achievement of the target Radiog informLites and kept such a small amount of rejects , Furthermore, the operating casting thickness, which is not reduced in the starting phase, causes less interference, which, as a result of solidification on the narrow side walls, leads to widening of the casting gap when passing through the casting cross section and possibly uncontrolled tearing of the cast strand.
  • the starting casting speed is chosen smaller than half the operating casting speed, the casting rolls usually rotate.
  • the starting phase can also be initiated with standing casting rolls, so that the start casting speed at the beginning of the feeding of molten metal is still 0 m / min and the casting rolls are then rapidly accelerated.
  • a start casting speed in this range allows a good timing between the melt feed to the attainment of the operating pouring level and the ramp-up of the start casting speed to a belting casting speed that approximates the operating casting speed. This is accomplished by a moderate, steady increase in casting roll peripheral speed to a belting casting speed that matches a measurable target casting level To ensure reliable banding (strand shell formation on the casting roll surfaces in the molten pool). Accordingly, the belt-forming casting speed is adjusted or regulated in accordance with a measurable target casting level.
  • Another way of optimally adjusting the banding casting speed is to control the banding casting speed in response to the release force occurring between the casting rolls.
  • the separating force acting between the two casting rolls is, for a given casting gap, a measure of the strand shell thickness and the current solidification state in the narrowest cross section between the casting rolls. It is higher as the solidification process in this area progresses.
  • the predominantly rising metal bath level in the start phase which has a significant influence on strand shell formation, is also taken into account here.
  • the measured values of a bath level measurement and a separation force measurement can also be used in combination.
  • the band-separating casting speed is to be understood as the casting speed at which the first part of the cast metal strip, which was produced under unsteady casting conditions in the starting phase of the casting process and is thus to be regarded as scrap material, is separated from the continuously following metal strip produced under largely stationary casting conditions.
  • This separation takes place according to a possible embodiment exclusively under the action of the dead weight of the narrowest cross section between the casting rollers leaving down hanging starting piece of the cast metal strip by tearing it in the casting gap by increasing the casting speed on the belt separation casting speed, the solidification conditions and thus the mechanical properties of the cast strip in G confusequerites, especially by reducing the tensile strength, so changed that the strip in this cross-section tears off without additional mechanical measures.
  • the separation of the cast metal strip at tape release casting speed can be accomplished by the action of a gravitational action increased tape tension applied by a driver assembly located downstream of the casting nip of the two-roll caster.
  • An improvement in the separation conditions can be achieved by superposing a short-term increase in casting thickness by 5 to 40% on the increase in casting speed to the strip-separation casting speed.
  • the belt separation casting speed is higher than the operation casting speed, preferably 5% to 40% higher than the operation casting speed.
  • This belt separation casting speed is set briefly as soon as approximately stationary casting conditions are reached. It is preferred that even a consistent strip quality is ensured.
  • the strip separation casting speed is expediently set in the starting phase when the molten metal in the melting chamber has essentially reached the desired operating casting level.
  • the casting speed is increased to approximately the operating casting speed before reaching the desired operating pouring mirror in the melting chamber.
  • the proposed method allows the steady state casting operation to be achieved within 5 to 60 seconds after the start of metal melt feed into the melt space.
  • At least reference data of the instantaneous casting speed and the current G foolador let the molten metal in the melting space and / or the instantaneous separation force between the casting rolls and / or the gap width between the casting rolls and / or the strip thickness of the cast metal strip determined continuously during the casting start and fed to a computing unit and generated from these reference data including a mathematical model for the starting process manipulated variables for the casting speed, for the position of a Bandleit stimulate and for the transport speed of the cast metal strip in a belt conveyor and transmitted to the drive units of these devices become.
  • the separation conditions for the separation of the first piece of the cast metal strip in the casting cross-section are improved when using the mathematical model based on current input data such as steel grade, operating casting thickness, temperature ratios, quality related Solidification conditions, etc., in addition a manipulated variable for the distance positioning of the two casting rolls to each other, in particular an increased starting casting thickness, is generated.
  • the quality of the metal strip produced can be continually optimized and adapted to changing operating conditions in general and during the casting process if the mathematical model comprises a metallurgical model for forming a specific microstructure in the cast metal strip and / or for influencing the geometry of the cast metal strip.
  • a two-roll caster equipped in this way enables the acquisition of current production data from the steelmaking process and their joint processing with measurement data at the caster in a computer model for optimizing the starting process.
  • a separating force measuring device for determining the instantaneous, caused essentially by the banding separating force between the two casting rolls or a position-measuring device for determining the instantaneous gap width between the casting rolls or a measuring device for determining the instantaneous strip thickness is used.
  • Each of these measurements provides reference data which at least indirectly produce a mathematically describable relationship with the strand shell formation in the melt pool and thus with the metal strand formation in the narrowest cross section between the casting rolls and which can therefore be used in a mathematical model to calculate manipulated variables in order to minimize or minimize the starting process Optimized in terms of shape and trackability of the strip breaking edge.
  • a further improvement of the starting method can be achieved by combining at least two of these measuring methods, wherein the measurements are carried out simultaneously and processed in a correspondingly expanded mathematical model.
  • a further optimization of the method results when at least one of the two casting rolls is coupled to a casting roll adjusting device and the computing unit is additionally connected by a signal line to a casting roll adjusting device for setting a starting casting thickness.
  • the casting format preferably the operating casting thickness
  • the steel production taken characteristic data such as the superheating temperature of the melt, and measured data on the system in the process model
  • the present method and the associated two-roll caster is suitable for casting molten metals, preferably Fe-containing metal alloys, in particular for steels.
  • a two-roll caster with the necessary for carrying out the method according to the invention Facilities is in Fig.1 shown schematically. It consists of two in a horizontal plane at a distance from each other and equipped with an internal cooling, not shown, casting rolls 1, 2. These are rotatably supported in shaft bearings 3, 4 and coupled with rotary actuators 5, 6, the opposing rotation of the casting rolls 1, 2 to G confusewalzenachsen 1 ', 2' with a controllable peripheral speed, which corresponds to the casting speed allow. To determine the instantaneous casting speed, at least one of the casting rolls 1, 2 or the associated rotary drives 5, 6 or the cast metal strip itself is assigned a speed measuring device 34.
  • One of the two casting rolls 2 is slidably supported in the horizontal plane transversely to the casting roll axis 2 'and coupled to a casting roll adjusting device 7, whereby the distance between the two casting rolls 1, 2 is adjustable adjustable to each other.
  • side plates 8 are pressed against the front side, which together with a portion of the lateral surfaces 9, 10 of the rotating casting rolls form a melting chamber 11 for receiving molten metal 12.
  • the molten metal 12 is continuously and regulated introduced from an intermediate vessel 13 through a dip tube 14 in the melt space 11, so that during the stationary casting operation, the melt supply through the Tauchrohrauslässe in submerged form, ie always below a held at a constant level casting mirror 15.
  • a level measuring device 16 arranged above the melting space 11, a continuous monitoring of the level of the casting mirror takes place.
  • the solid shell shells 19, 20 formed on the lateral surfaces 9, 10 of the casting rolls in the melting chamber 11 are connected in the casting gap 18 to a substantially solidified metal strip 21, which is conveyed downwardly from the casting gap 18 by the rotational movement of the casting rolls 1, 2, by a downstream one pivotable Bandleit recognized 22 and tape guide rollers 23 is deflected in a substantially horizontal transport direction and one of a pair of drive rollers belt conveyor 24 is discharged from the Zweiwalzengit listening.
  • the arc-shaped Bandleit Vietnamese 22 is connected to a drive unit 25, which makes it possible to pivot the Bandleit Vietnamese 22 from a retreat position A to an operating position B and back.
  • the tape guide is in the retraction position A and is pivoted after the separation of a first piece of the cast metal strip in the operating position B and can remain there during the entire stationary production process.
  • a scrap receiving carriage 26 is arranged, in which at most initially dripping metal melt and the first portion of the cast strip can be collected and transported away if necessary.
  • the scrap receiving trolley can also be designed without wheels. It may be positioned within a chamber wall enclosing the path of the cast metal strip from the casting rolls to the first driver. Also, this first portion of the cast strip does not necessarily fall directly into the scrap receiving trolley, but can also be fed indirectly thereto.
  • the cast metal strip After the cast metal strip emerges from the belt transport device 24 equipped with a drive unit 27, it is finished in further processing devices 28 (not illustrated in detail) and finally wound into bundles 29 and / or cut into sheets.
  • the further treatment devices 28 may be formed, for example, by rolling stands, trimming devices, surface treatment devices, thermal treatment devices of various kinds, such as heating devices, holding ovens, temperature compensation furnaces, and cooling sections.
  • the Zweiwalzengitinnate is equipped with a computing unit 36, which makes it possible to automatically perform the starting process in response to predetermined input variables and determined on the device current metrics.
  • a computing unit 36 which makes it possible to automatically perform the starting process in response to predetermined input variables and determined on the device current metrics.
  • optimal manipulated variables such as the start casting speed v gSt , the position of the belt guide , the drive speed of the belt conveyor and possibly the starting casting thickness D St and other control variables are generated in the arithmetic unit and the starting process continuously controlled and supervised.
  • Manipulated variables which are generated from the arithmetic unit 36 for carrying out the starting process, are based on measurement data from the casting plant that are currently collected and that directly or indirectly have a connection with the strand shell growth.
  • Predestined for this purpose are the instantaneous level of the casting mirror 15, ie the level of the casting mirror in the melting space 11, which can be determined continuously by means of a level-measuring device 16.
  • the release force F Tr between the two casting rolls 1, 2 represents a reaction force on the passed strand shells and also provides a reference value for the degree of solidification in the narrowest cross section between the casting rolls. It is to be determined with a separating force measuring device 30, which is associated with the casting roll bearings 3, 4 or incorporated in the G confusewalzenverstell issued 7.
  • Another way to determine a reference size provides the instantaneous gap width G between the casting rolls, which is closely related to the release force F Tr , since a higher separation force increased radial deflection of the casting rolls 1, 2 causes each other or their deformation.
  • This can be measured directly by a position measuring device 31 on the casting rolls or indirectly via a strip thickness measuring device 32.
  • the simultaneous measurement and processing of the measurement data of several of the measuring systems described minimizes the time required for the start of the system and in particular increases the quality of the strip breaking edge of the subsequent metal strip with regard to their geometry and their ability to be guided through the plant, as well as the quality of the product produced from the start of production.
  • the solidification conditions on the lateral surfaces 9, 10 of the two casting rolls and in the casting gap 18 at steady-state casting speed and at belt separation casting speed are in the FIGS. 2a and 2b compared.
  • the two casting rolls 1, 2 are set to a casting gap 18, which corresponds in particular to the stationary casting level and the operating casting thickness D of the desired cast metal strip.
  • the two strand shells 19, 20 are joined together and it forms at stationary casting conditions a solidified metal strip.
  • the V-shaped lines 37 illustrate the transition from 100% melt to a mixing area with an increasing solids content and the V-shaped line 38 illustrates the transition to 100% solids, thus the solidified strand part.
  • Fig. 2b Figure 12 shows the changed solidification conditions at a belt-separation casting speed which is increased over the operation-casting speed. This means that the peripheral speed of the casting rolls is increased. The cooling conditions were not changed. As a result, the available strand shell formation time in the melt space and thus the strand shell growth is reduced, so that the fürerstarrungspraxis 39 shifts in the casting direction and in G confusequerites either an increased proportion of liquid content is present and / or the average strip temperature is at least higher than at operating casting speed. In both cases, the tensile strength of the hanging down metal strip piece at the strip separation casting speed is reduced so far that the metal strip breaks off under the action of its weight in G confusequerites.
  • the casting speed is increased to such a high belt separation casting speed and then immediately lowered again so that no separation force is temporarily measured.
  • molten metal flows because of the lack of connection between the two strand shells and under the effect of ferrostatic pressure in the space below the narrowest cross section between the casting rolls after. This leads to a bulging of the metal strip and a considerable rewarming of the near-surface strip layers and to the demolition under the influence of the downside band weight.
  • the G confusetikpractic h Gsp can be measured only after reaching a certain degree of filling, since the melt space is constricted due to the casting roll arrangement to G confusequerites toward funnel-shaped and in this very narrow range a level measurement is not technically feasible. After a period of about 5 to 15 seconds, which can be variably selected, the operating pouring level h Betr is reached and maintained at this level.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

La présente invention concerne un procédé pour améliorer les conditions au début d'un processus de coulée dans un système de coulée à deux rouleaux, sans utiliser de fausse barre. Ce procédé consiste à régler une épaisseur de coulée de fonctionnement, à mettre en rotation les rouleaux de coulée à une vitesse périphérique qui correspond à une vitesse de coulée de début réduite par rapport à la vitesse de coulée de fonctionnement fixe, à amener une masse fondue métallique dans une chambre à masse fondue formée par les rouleaux de coulée en rotation et par les plaques latérales qui leur sont adjacentes, à former une bande métallique coulée présentant un format de section transversale prédéfini, sensiblement constant, tout en augmentant la vitesse de coulée jusqu'à une vitesse de coulée de formation de bande, à augmenter ensuite la vitesse de coulée jusqu'à une vitesse de coulée de séparation de bande, nettement supérieure à la vitesse de coulée permettant les conditions de solidification courantes, à séparer la bande métallique coulée, à régler la vitesse de coulée de fonctionnement fixe, à diriger la bande métallique coulée vers un système de transport de bande, puis à initier un fonctionnement de coulée fixe. La présente invention concerne également un système de coulée à deux rouleaux permettant de mettre en oeuvre ledit procédé.

Claims (19)

  1. Procédé de démarrage d'un processus de coulée dans un dispositif de coulée à deux cylindres sans barre d'amorce, caractérisé par les étapes suivantes :
    • réglage d'une épaisseur de coulée de fonctionnement (D) et mise en rotation des cylindres de coulée (1, 2) à une vitesse circonférentielle de cylindres de coulée qui équivaut à une vitesse de coulée de départ (VgSt) réduite par rapport à une vitesse stationnaire de coulée de fonctionnement (VgBetr),
    • acheminement de coulée métallique (12) dans une chambre de coulée (11) formée par les cylindres de coulée en rotation (1, 2) et les plaques latérales (8) les touchant et formation d'une bande métallique coulée (21) ayant un format de section transversale prédéfini sensiblement constant avec augmentation simultanée de la vitesse de coulée (vg) jusqu'à une vitesse de coulée de formation de bande (VgBb),
    • augmentation consécutive de la vitesse de coulée (vg) jusqu'à une vitesse de coulée de sectionnement de bande (vgTr) qui est significativement plus élevée qu'une vitesse de coulée (vg) suffisante pour les conditions momentanées de solidification et sectionnement de la bande métallique (21) coulée jusqu'à ce moment,
    • réglage d'une vitesse stationnaire de coulée de fonctionnement (VgBetr),
    • réorientation de la bande métallique coulée suivante (21) vers un dispositif de transport de bande (24) et début du fonctionnement en coulée stationnaire.
  2. Procédé selon la revendication 1, caractérisé en ce que la vitesse de coulée de démarrage (VgSt) est inférieure à la moitié de la vitesse de coulée de fonctionnement (vgBetr).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la vitesse de coulée de démarrage (VgSt) s'élève à moins d'environ 12 m/min.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la vitesse de coulée de démarrage (vgSt) s'élève encore à 0 m/min. au début de l'acheminement de coulée métallique et s'accélère ensuite.
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la vitesse de coulée de formation de bande (vgBb) se règle en fonction d'un niveau théorique mesurable de coulée (hGsp).
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la vitesse de coulée de formation de bande (vgBb) équivaut sensiblement à la vitesse stationnaire de coulée de fonctionnement (vgBetr).
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la vitesse de coulée de formation de bande (vgBb) se règle en fonction de la force de sectionnement (FTr) apparaissant entre les cylindres de coulée.
  8. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la vitesse de coulée de sectionnement de bande (vgTr) est supérieure à la vitesse de coulée de formation de bande (vgBb) et/ou la vitesse de coulée de fonctionnement (vgBetr).
  9. Procédé selon l'une quelconque des revendications 1 à 7, caractérisé en ce que la vitesse de coulée de sectionnement de bande (vgTr) est de 5 % à 40 % supérieure à la vitesse de coulée de formation de bande (vgBb) et/ou la vitesse de coulée de fonctionnement (vgBetr).
  10. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'à l'augmentation de la vitesse de coulée jusqu'à la vitesse de coulée de sectionnement de bande (vgTr) se superpose une augmentation de brève durée de l'épaisseur de coulée (D) à raison de 5 à 40 %.
  11. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la vitesse de coulée de sectionnement de bande (vgTr) est réglée dès que la coulée métallique de la chambre de coulée (11) a atteint sensiblement le niveau théorique de coulée de fonctionnement (hGsp).
  12. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le sectionnement de la bande métallique coulée se fait à la vitesse de coulée de sectionnement de bande (vgTr) par cassure de la bande coulée sous l'effet du poids propre de la bande métallique dans le canal de coulée (18) entre les cylindres de coulée (1, 2).
  13. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le sectionnement de la bande métallique coulée se fait à la vitesse de coulée de sectionnement de bande (vgTr) sous l'effet d'une traction accrue de la bande.
  14. Procédé selon l'une quelconque des revendication précédentes, caractérisé en ce que la vitesse de coulée (vg) augmente jusqu'à atteindre approximativement la vitesse de coulée de fonctionnement (vgBetr) au moins pendant un laps de temps avant d'atteindre le niveau théorique de coulée de fonctionnement (hgsp) dans la chambre de coulée (11).
  15. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le fonctionnement en coulée stationnaire est atteint dans les 5 à 60 secondes après le premier acheminement de coulée métallique dans la chambre de coulée (11).
  16. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au démarrage d'un processus de coulée pour la fabrication d'une bande métallique très mince, une épaisseur de coulée de démarrage (DSt) accrue par rapport à l'épaisseur de coulée de fonctionnement (D) est réglée et que cette épaisseur de coulée de démarrage est ramenée au plus tôt après formation d'une bande métallique coulée d'un format de section transversale prédéfini sensiblement constant à l'épaisseur de coulée de fonctionnement (D).
  17. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins des données de référence de vitesse de coulée (vg) et de hauteur momentanée de niveau de coulée momentanée et/ou de force momentanée de sectionnement (FTr) entre les cylindres de coulée et/ou de largeur de canal (G) entre les cylindres de coulée et/ou d'épaisseur de bande de la bande métallique coulée sont déterminées en continu pendant le démarrage de la coulée et acheminées à une unité de calcul (36) et qu'à partir de ces données de référence, en faisant intervenir un modèle mathématique pour le processus de démarrage, des grandeurs de réglage pour la vitesse de coulée, pour la position d'un dispositif de guidage de bande (22) et pour la vitesse de transport de la bande métallique coulée dans un dispositif de transport de bande (24) sont générées et communiquées aux unités de commande (5, 6, 25, 27) de ces dispositifs.
  18. Procédé selon la revendication 15, caractérisé en ce qu'à partir du modèle mathématique, on génère en plus une grandeur de réglage pour le positionnement en espacement des cylindres de coulée (1, 2) l'un par rapport à l'autre, notamment une épaisseur de coulée de démarrage (DSt).
  19. Procédé selon la revendication 15 ou 16, caractérisé en ce que le modèle mathématique est un modèle métallurgique servant à constituer une certaine structure dans la bande métallique coulée et/ou à influer sur la géométrie de la bande métallique coulée.
EP03798105A 2002-09-12 2003-08-18 Procede pour debuter un procedure de coulee Expired - Lifetime EP1536900B2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT03798105T ATE312676T1 (de) 2002-09-12 2003-08-18 Verfahren und vorrichtung zum starten eines giessvorganges
SI200330195T SI1536900T1 (sl) 2002-09-12 2003-08-18 Postopek in naprava za zacetek postopka litja

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT13672002 2002-09-12
AT0136702A AT411822B (de) 2002-09-12 2002-09-12 Verfahren und vorrichtung zum starten eines giessvorganges
PCT/EP2003/009110 WO2004028725A1 (fr) 2002-09-12 2003-08-18 Procede et dispositif pour debuter un processus de coulee

Publications (3)

Publication Number Publication Date
EP1536900A1 EP1536900A1 (fr) 2005-06-08
EP1536900B1 EP1536900B1 (fr) 2005-12-14
EP1536900B2 true EP1536900B2 (fr) 2012-08-15

Family

ID=29274633

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03798105A Expired - Lifetime EP1536900B2 (fr) 2002-09-12 2003-08-18 Procede pour debuter un procedure de coulee

Country Status (9)

Country Link
US (1) US7156153B2 (fr)
EP (1) EP1536900B2 (fr)
KR (1) KR101143384B1 (fr)
CN (1) CN100577326C (fr)
AT (1) AT411822B (fr)
AU (1) AU2003258624B2 (fr)
DE (1) DE50301955D1 (fr)
MX (1) MXPA05002697A (fr)
WO (1) WO2004028725A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT412539B (de) 2003-05-06 2005-04-25 Voest Alpine Ind Anlagen Zweiwalzengiesseinrichtung
AT501044B8 (de) * 2004-10-29 2007-02-15 Voest Alpine Ind Anlagen Verfahren zum herstellen eines gegossenen stahlbandes
WO2007048250A1 (fr) * 2005-10-28 2007-05-03 Novelis Inc. Homogénéisation et traitement thermique de métaux coulés
US7562540B2 (en) * 2006-06-16 2009-07-21 Green Material Corporation Fiberizing device for producing fibers from molten waste
JP5103916B2 (ja) * 2007-02-01 2012-12-19 株式会社Ｉｈｉ 双ロール鋳造機の操業方法及びサイド堰支持装置
EP2581150A1 (fr) 2011-10-12 2013-04-17 Siemens Aktiengesellschaft Dispositif de laminage par coulée avec refroidissement cryogène des laminoirs par coulée
JP6511968B2 (ja) * 2015-06-03 2019-05-15 日産自動車株式会社 双ロール式縦型鋳造装置及び双ロール式縦型鋳造方法
CN104942251B (zh) * 2015-07-01 2017-01-11 重庆大学 炼钢厂连铸机的开浇时间确定方法
EP3202502A1 (fr) * 2016-02-04 2017-08-09 Primetals Technologies Germany GmbH Reglage de position de bande
US10618107B2 (en) 2016-04-14 2020-04-14 GM Global Technology Operations LLC Variable thickness continuous casting for tailor rolling
CN108145112B (zh) * 2016-12-05 2020-01-21 上海梅山钢铁股份有限公司 基于液位自动控制的板坯连铸塞棒控流自动开浇工艺

Citations (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5956950A (ja) † 1982-09-28 1984-04-02 Nippon Kokan Kk <Nkk> 金属板の連続鋳造方法
JPS59215257A (ja) † 1983-05-20 1984-12-05 Ishikawajima Harima Heavy Ind Co Ltd 双ロール式連鋳方法
JPS6064754A (ja) † 1983-09-19 1985-04-13 Hitachi Ltd 薄帯板の連続鋳造方法及び装置
JPS6064753A (ja) † 1983-09-19 1985-04-13 Hitachi Ltd 双ロ−ル式鋳造機の鋳造方法及びその装置
JPS61232044A (ja) † 1985-04-05 1986-10-16 Mitsubishi Heavy Ind Ltd 薄板連続鋳造方法
JPS61232045A (ja) † 1985-04-05 1986-10-16 Mitsubishi Heavy Ind Ltd 薄板連続鋳造方法
JPS61266159A (ja) † 1985-05-21 1986-11-25 Mitsubishi Heavy Ind Ltd 薄板連続鋳造装置の運転方法
JPS6297749A (ja) † 1985-10-24 1987-05-07 Mitsubishi Heavy Ind Ltd 薄板連続鋳造方法
US4702300A (en) † 1985-03-15 1987-10-27 Hitachi, Ltd. Double drum type continuous casting machine
JPS6349347A (ja) † 1986-08-13 1988-03-02 Ishikawajima Harima Heavy Ind Co Ltd 双ロ−ル回転数制御方法
JPS63290654A (ja) † 1987-05-22 1988-11-28 Nisshin Steel Co Ltd 薄板連続鋳造方法
JPS6434553A (en) † 1987-07-31 1989-02-06 Mitsubishi Heavy Ind Ltd Method for controlling molten steel level in continuous casting machine
JPH01154850A (ja) † 1987-12-10 1989-06-16 Ishikawajima Harima Heavy Ind Co Ltd 双ロール式連鋳機の板厚制御方法
US5031688A (en) † 1989-12-11 1991-07-16 Bethlehem Steel Corporation Method and apparatus for controlling the thickness of metal strip cast in a twin roll continuous casting machine
US5052467A (en) † 1989-08-03 1991-10-01 Nippon Steel Corporation Control device and a control method for twin-roll continuous caster
EP0450775A2 (fr) † 1990-04-04 1991-10-09 Ishikawajima-Harima Heavy Industries Co., Ltd. Procédé et dispositif de coulage d'une bande
WO1992002321A1 (fr) † 1990-08-03 1992-02-20 Davy Mckee (Poole) Limited Dispositif de coulee de metal a double cylindre
JPH04167950A (ja) † 1990-11-01 1992-06-16 Toshiba Corp 双ロール式連続鋳造機の制御方法および装置
US5191927A (en) † 1990-11-22 1993-03-09 Mitsubishi Jukogyo Kabushiki Kaisha Method and apparatus for detecting a sheet thickness in a continuous casting machine
JPH05169205A (ja) † 1991-10-25 1993-07-09 Kobe Steel Ltd 双ロール式連続鋳造機の鋳造速度制御方法
KR930006638B1 (ko) † 1991-12-28 1993-07-22 포항제철 주식회사 강의 연속주조 자동 제어방법
US5287912A (en) † 1991-11-21 1994-02-22 Ishikawajima-Harima Heavy Industries Company Limited Strip casting
JPH06114504A (ja) † 1992-10-09 1994-04-26 Nippon Steel Corp 双ドラム薄板連続鋳造法
WO1995009708A1 (fr) † 1993-10-07 1995-04-13 Fata Hunter, Inc. Procede de coulee a cylindres a calibrage fin
WO1997034718A1 (fr) † 1996-03-19 1997-09-25 Ishikawajima-Harima Heavy Industries Company Limited Absorbeurs de chaleur sans contact pour la coulee en bandes
US5706882A (en) † 1994-12-29 1998-01-13 Usinor-Sacilor Control process for twin-roll continuous casting
EP0903191A2 (fr) † 1997-09-18 1999-03-24 Ishikawajima-Harima Heavy Industries Co., Ltd. Installation de coulée de bandes
KR19990051823A (ko) † 1997-12-20 1999-07-05 이구택 쌍롤형 박판주조장치에서의 주조롤 속도 조정방법 및 장치
US5927375A (en) † 1996-11-07 1999-07-27 Usinor Of Puteaux Continuous casting process between rolls
WO1999048636A1 (fr) † 1998-03-25 1999-09-30 Voest-Alpine Industrieanlagenbau Gmbh Installation et procede de coulee en continu d'un ruban mince
US5988258A (en) † 1997-03-27 1999-11-23 Ishikawajima-Harima Heavy Industries Company Limited Casting metal strip
US6085183A (en) † 1995-03-09 2000-07-04 Siemens Aktiengesellschaft Intelligent computerized control system
EP1025934A2 (fr) † 1999-02-05 2000-08-09 Ishikawajima-Harima Heavy Industries Co., Ltd. Procédé de coulage à deux cylindres de tôle en ruban
WO2001039914A1 (fr) † 1999-12-01 2001-06-07 Ishikawajima-Harima Heavy Industries Company Limited Bande en acier de moulage
KR20020017028A (ko) † 2000-08-28 2002-03-07 이구택 쌍롤형 박판주조 제어장치 및 방법
EP1372890A1 (fr) † 2001-03-26 2004-01-02 Danieli & C. Officine Meccaniche SpA Procede de cisaillage d'une bande metallique pendant la phase de coulee

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0138059A1 (fr) * 1983-09-19 1985-04-24 Hitachi, Ltd. Procédé et dispositif pour couler une bande métallique entre deux cylindres
FR2582971B1 (fr) 1985-06-07 1987-09-25 Siderurgie Fse Inst Rech Procede et mannequin d'extraction d'un produit de coulee continue entre cylindres
DE3603190A1 (de) 1986-02-03 1987-08-06 Schloemann Siemag Ag Anfahrkopf fuer eine stahlbandgiessanlage
DE3608503C2 (de) * 1986-03-14 1994-09-01 Stopinc Ag Verfahren zum automatischen Angießen eines Stranges einer Stranggießanlage
JPH01133644A (ja) * 1987-11-20 1989-05-25 Ishikawajima Harima Heavy Ind Co Ltd 双ロール式連鋳機における鋳造開始方法
JPH01166865A (ja) * 1987-12-24 1989-06-30 Ishikawajima Harima Heavy Ind Co Ltd 双ロール連鋳法
CN1010776B (zh) * 1989-04-20 1990-12-12 北京市海淀区农业科学研究所 有机-无机复合肥料
GB9512561D0 (en) * 1995-06-21 1995-08-23 Davy Distington Ltd A method of casting metal strip
EP0903190B1 (fr) * 1997-09-18 2003-04-16 Castrip, LLC Installation de coulée de bandes
AUPQ291199A0 (en) 1999-09-17 1999-10-07 Bhp Steel (Jla) Pty Limited Strip casting
KR100406380B1 (ko) * 1999-12-23 2003-11-19 주식회사 포스코 쌍롤식 박판주조기를 이용한 박판제조방법

Patent Citations (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5956950A (ja) † 1982-09-28 1984-04-02 Nippon Kokan Kk <Nkk> 金属板の連続鋳造方法
JPS59215257A (ja) † 1983-05-20 1984-12-05 Ishikawajima Harima Heavy Ind Co Ltd 双ロール式連鋳方法
JPS6064754A (ja) † 1983-09-19 1985-04-13 Hitachi Ltd 薄帯板の連続鋳造方法及び装置
JPS6064753A (ja) † 1983-09-19 1985-04-13 Hitachi Ltd 双ロ−ル式鋳造機の鋳造方法及びその装置
US4702300A (en) † 1985-03-15 1987-10-27 Hitachi, Ltd. Double drum type continuous casting machine
JPS61232044A (ja) † 1985-04-05 1986-10-16 Mitsubishi Heavy Ind Ltd 薄板連続鋳造方法
JPS61232045A (ja) † 1985-04-05 1986-10-16 Mitsubishi Heavy Ind Ltd 薄板連続鋳造方法
JPS61266159A (ja) † 1985-05-21 1986-11-25 Mitsubishi Heavy Ind Ltd 薄板連続鋳造装置の運転方法
JPS6297749A (ja) † 1985-10-24 1987-05-07 Mitsubishi Heavy Ind Ltd 薄板連続鋳造方法
JPS6349347A (ja) † 1986-08-13 1988-03-02 Ishikawajima Harima Heavy Ind Co Ltd 双ロ−ル回転数制御方法
JPS63290654A (ja) † 1987-05-22 1988-11-28 Nisshin Steel Co Ltd 薄板連続鋳造方法
JPS6434553A (en) † 1987-07-31 1989-02-06 Mitsubishi Heavy Ind Ltd Method for controlling molten steel level in continuous casting machine
JPH01154850A (ja) † 1987-12-10 1989-06-16 Ishikawajima Harima Heavy Ind Co Ltd 双ロール式連鋳機の板厚制御方法
US5052467A (en) † 1989-08-03 1991-10-01 Nippon Steel Corporation Control device and a control method for twin-roll continuous caster
US5031688A (en) † 1989-12-11 1991-07-16 Bethlehem Steel Corporation Method and apparatus for controlling the thickness of metal strip cast in a twin roll continuous casting machine
EP0450775A2 (fr) † 1990-04-04 1991-10-09 Ishikawajima-Harima Heavy Industries Co., Ltd. Procédé et dispositif de coulage d'une bande
WO1992002321A1 (fr) † 1990-08-03 1992-02-20 Davy Mckee (Poole) Limited Dispositif de coulee de metal a double cylindre
JPH04167950A (ja) † 1990-11-01 1992-06-16 Toshiba Corp 双ロール式連続鋳造機の制御方法および装置
US5191927A (en) † 1990-11-22 1993-03-09 Mitsubishi Jukogyo Kabushiki Kaisha Method and apparatus for detecting a sheet thickness in a continuous casting machine
JPH05169205A (ja) † 1991-10-25 1993-07-09 Kobe Steel Ltd 双ロール式連続鋳造機の鋳造速度制御方法
US5287912A (en) † 1991-11-21 1994-02-22 Ishikawajima-Harima Heavy Industries Company Limited Strip casting
KR930006638B1 (ko) † 1991-12-28 1993-07-22 포항제철 주식회사 강의 연속주조 자동 제어방법
JPH06114504A (ja) † 1992-10-09 1994-04-26 Nippon Steel Corp 双ドラム薄板連続鋳造法
WO1995009708A1 (fr) † 1993-10-07 1995-04-13 Fata Hunter, Inc. Procede de coulee a cylindres a calibrage fin
US5706882A (en) † 1994-12-29 1998-01-13 Usinor-Sacilor Control process for twin-roll continuous casting
US6085183A (en) † 1995-03-09 2000-07-04 Siemens Aktiengesellschaft Intelligent computerized control system
WO1997034718A1 (fr) † 1996-03-19 1997-09-25 Ishikawajima-Harima Heavy Industries Company Limited Absorbeurs de chaleur sans contact pour la coulee en bandes
US5927375A (en) † 1996-11-07 1999-07-27 Usinor Of Puteaux Continuous casting process between rolls
US5988258A (en) † 1997-03-27 1999-11-23 Ishikawajima-Harima Heavy Industries Company Limited Casting metal strip
EP0903191A2 (fr) † 1997-09-18 1999-03-24 Ishikawajima-Harima Heavy Industries Co., Ltd. Installation de coulée de bandes
KR19990051823A (ko) † 1997-12-20 1999-07-05 이구택 쌍롤형 박판주조장치에서의 주조롤 속도 조정방법 및 장치
WO1999048636A1 (fr) † 1998-03-25 1999-09-30 Voest-Alpine Industrieanlagenbau Gmbh Installation et procede de coulee en continu d'un ruban mince
EP1025934A2 (fr) † 1999-02-05 2000-08-09 Ishikawajima-Harima Heavy Industries Co., Ltd. Procédé de coulage à deux cylindres de tôle en ruban
WO2001039914A1 (fr) † 1999-12-01 2001-06-07 Ishikawajima-Harima Heavy Industries Company Limited Bande en acier de moulage
KR20020017028A (ko) † 2000-08-28 2002-03-07 이구택 쌍롤형 박판주조 제어장치 및 방법
EP1372890A1 (fr) † 2001-03-26 2004-01-02 Danieli & C. Officine Meccaniche SpA Procede de cisaillage d'une bande metallique pendant la phase de coulee

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Wechsler, R. et al., "The Castrip Process for Twin-Roll Casting of Steel Strip", September 2002, pages 69-74 †

Also Published As

Publication number Publication date
KR20050057316A (ko) 2005-06-16
MXPA05002697A (es) 2005-05-27
US7156153B2 (en) 2007-01-02
AU2003258624A1 (en) 2004-04-19
US20050224210A1 (en) 2005-10-13
EP1536900B1 (fr) 2005-12-14
AT411822B (de) 2004-06-25
AU2003258624B2 (en) 2008-11-20
CN1681613A (zh) 2005-10-12
WO2004028725A1 (fr) 2004-04-08
DE50301955D1 (de) 2006-01-19
ATA13672002A (de) 2003-11-15
EP1536900A1 (fr) 2005-06-08
KR101143384B1 (ko) 2012-05-23
CN100577326C (zh) 2010-01-06

Similar Documents

Publication Publication Date Title
EP1812185B1 (fr) Procede de production d&#39;une bande d&#39;acier coule
EP2627464B1 (fr) Procédé et installation de production à efficacité énergétique pour une bande d&#39;acier laminée à chaud
EP1536900B2 (fr) Procede pour debuter un procedure de coulee
EP3558563B1 (fr) Procede de fabrication de bandes bobinees sans fin laminees a chaud dans une installation combinee de coulee et de laminage, et installation combinee de coulee et de laminage
EP2441539A1 (fr) Procédé à sortie d&#39;énergie optimisée et installation de production d&#39;une bande chaude en acier
EP2441538A1 (fr) Dispositif de coulée continue doté d&#39;une réduction de barre dynamique
DE10042078A1 (de) Verfahren und Vorrichtung zum kontinuierlichen Gießen von Stahlband aus Stahlschmelze
EP2217394B1 (fr) Procédé et dispositif destinés à la fabrication d&#39;une bande de métal
EP3554744B1 (fr) Procédé et dispositif de régulation d&#39;une installation de coulée continue
EP3495086A1 (fr) Procédé et dispositif de fabrication d&#39;un matériau composite en forme de bande
EP1077782B1 (fr) Dispositif et procede de coulee de metal, proche des cotes finales
DE3440236C2 (fr)
WO2016165933A1 (fr) Installation de coulée et de laminage et procédé servant à faire fonctionner ladite installation
DE69323922T2 (de) Verfahren und Vorrichtung zum kontinuierlichen Giessen eines metallischen Bandes
EP3993921A1 (fr) Acheminement de matière fondue pour installations de coulée en bande
EP1289687B1 (fr) Procede et installation pour fabriquer une bande de metal
EP3173166B1 (fr) Procédé et dispositif de réglage de la largeur d&#39;une barre métallique coulée en continu
DE2853868C2 (de) Verfahren zum Stranggießen von Stahl sowie dementsprechend hergestellter Stahlstrang
EP0832990B1 (fr) Procédé pour fabriquer des barres metalliques revêtues, en particulier de bandes en acier
DE19814988A1 (de) Gießverfahren für ein dünnes Metallband
DE69000282T2 (de) Verfahren und vorrichtung zur herstellung von duennen metallprodukten mittels strangguss.
DE1292793C2 (de) Vorrichtung zum Abziehen eines Stahlstranges aus einer Strangkokille
EP1243362A2 (fr) Procédé et dispositif de fabrication de feuillard à chaud dans une machine de coulée continue de type à deux rouleaux
DE4404858A1 (de) Verfahren und Vorrichtung zum Gießen von Blechen und Bändern

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20050309

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051214

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051214

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051214

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051214

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

DAX Request for extension of the european patent (deleted)
REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 50301955

Country of ref document: DE

Date of ref document: 20060119

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060314

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060314

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060314

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20060301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060325

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060515

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060615

ET Fr: translation filed
REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060831

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: DANIELI & C. OFFICINE MECCANICHE SPA

Effective date: 20060913

Opponent name: CASTRIP, LLC

Effective date: 20060913

NLR1 Nl: opposition has been filed with the epo

Opponent name: DANIELI & C. OFFICINE MECCANICHE SPA

Opponent name: CASTRIP, LLC

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060818

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070831

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051214

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: SIEMENS VAI METALS TECHNOLOGIES GMBH & CO

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051214

NLT2 Nl: modifications (of names), taken from the european patent patent bulletin

Owner name: SIEMENS VAI METALS TECHNOLOGIES GMBH & CO

Effective date: 20081105

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: SIEMENS VAI METALS TECHNOLOGIES GMBH

RTI2 Title (correction)

Free format text: METHOD FOR COMMENCING A CASTING PROCESS

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20110914

Year of fee payment: 9

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 20120815

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 20120824

Year of fee payment: 10

REG Reference to a national code

Ref country code: DE

Ref legal event code: R102

Ref document number: 50301955

Country of ref document: DE

Effective date: 20120815

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20120809

Year of fee payment: 10

Ref country code: SE

Payment date: 20120809

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SI

Payment date: 20120725

Year of fee payment: 10

Ref country code: TR

Payment date: 20120725

Year of fee payment: 10

Ref country code: SK

Payment date: 20120817

Year of fee payment: 10

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20120815

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20120823

Year of fee payment: 10

REG Reference to a national code

Ref country code: SE

Ref legal event code: NAV

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20120806

Year of fee payment: 10

BERE Be: lapsed

Owner name: *VOEST-ALPINE INDUSTRIEANLAGENBAU G.M.B.H. & CO.

Effective date: 20120831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120815

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120831

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20130827

Year of fee payment: 11

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20130818

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130818

REG Reference to a national code

Ref country code: SK

Ref legal event code: MM4A

Ref document number: E 478

Country of ref document: SK

Effective date: 20130818

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20140430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130819

REG Reference to a national code

Ref country code: SI

Ref legal event code: KO00

Effective date: 20140401

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130818

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130902

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140818

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130818

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130819

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130818

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref country code: DE

Ref legal event code: R082

Ref document number: 50301955

Country of ref document: DE

Representative=s name: HEYERHOFF GEIGER & PARTNER PATENTANWAELTE PART, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 50301955

Country of ref document: DE

Owner name: PRIMETALS TECHNOLOGIES AUSTRIA GMBH, AT

Free format text: FORMER OWNER: VOEST-ALPINE INDUSTRIEANLAGENBAU GMBH & CO., LINZ, AT

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20210819

Year of fee payment: 19

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 50301955

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50301955

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230301