EP2651578B1 - Train de laminoir pour la production d'acier tubulaire et de bandes minces - Google Patents

Train de laminoir pour la production d'acier tubulaire et de bandes minces Download PDF

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Publication number
EP2651578B1
EP2651578B1 EP11799672.8A EP11799672A EP2651578B1 EP 2651578 B1 EP2651578 B1 EP 2651578B1 EP 11799672 A EP11799672 A EP 11799672A EP 2651578 B1 EP2651578 B1 EP 2651578B1
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EP
European Patent Office
Prior art keywords
strip
rolling train
rolling
train according
stands
Prior art date
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Active
Application number
EP11799672.8A
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German (de)
English (en)
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EP2651578A1 (fr
EP2651578B2 (fr
Inventor
Jürgen Seidel
Christoph Klein
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SMS Group GmbH
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SMS Siemag AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/004—Heating the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
    • B21B45/06—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing of strip material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
    • B21B1/463—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing

Definitions

  • the invention relates to a rolling train, in particular a CSP plant for the production of strip, in particular tubular steel, and / or thin strip, comprising a casting device for producing a thin slab and a rolling line for rolling the thin slab into a strip or thin strip.
  • CSP Cosmetic Strip Production plants are continuous casting plants where two separate process stages for the production of steel strip are closely linked, namely the casting of liquid steel into thin slabs in the casting plant and the rolling of thin slabs to steel strip in the rolling mill.
  • rolling of the previously cast strand is usually carried out directly by utilizing the casting heat or by adjusting the desired rolling temperature by means of a compensating furnace or a heating device between the casting plant and the rolling train.
  • Conventional rolling mills of a thick slab system have at least one roughing stand or heavy plate framework and one finishing mill behind this roughing stand or heavy plate framework at some distance. While in the roughing stand or heavy plate stand usually reversing the thin slab is rolled to an intermediate strip of predetermined thickness, the rolling takes place within the finishing train in tandem, to which the finishing train is formed as KontiStrplie. While the distance between the individual stands of such finishing lines is usually constant and is usually about 5.5 meters, the distance between the roughing stand and the first stand of the finishing train is usually many times higher to ensure the reversing rolling operation in the roughing stand or heavy plate stand to be able to. Distances between the roughing stand or plate mill and the finishing mill of about 50 meters or more are not uncommon in this context.
  • the rolling mill according to the invention in particular a CSP plant, preferably consists of a compact rolling mill for producing metal strips, mainly tubular steel and / or thin strip, in which the temperature is influenced by means of a rapid heating device, in particular induction heating, between two successive finishing stands Fi and Fi + 1 can be.
  • a rapid heating device in particular induction heating
  • a straightening unit preferably a roller leveler, between two successive finishing stands Fi and Fi + 1 is provided.
  • a pair of scissors and / or optionally a scale scrubber or other belt cooling device may be arranged between the stands Fi and Fi + 1. All facilities are placed so compactly that they fit into a framework distance between 5 and 25 m.
  • the scaffold Fi is present the Schnellaufloomvorraum preferably provided with actuators for influencing the tape buckles and / or ski on the tape head.
  • the roller straightening machine, and / or the scissors and the above-described actuators can be guaranteed in the limited space safe passage through the Schnelletzloomvorraum, in particular induction heating, with a minimum passage dimension in the thickness direction.
  • Due to the process high-speed heater, scissors and / or scale scrubber can be used depending on the product to be rolled or driven transversely out of the rolling line or there alternatively be arranged a roller table with or without thermal insulation or table.
  • the scissors between be provided to the scaffolds to be used at the head and / or at the end and to ensure as straight as possible heads and ends of the formed band.
  • a single-row scale washer is preferably provided, which is compact and preferably located in front of the scaffold Fi + 1 behind the Schnellaufloomvorraum.
  • the scale scrubber can be activated in front of the scaffold Fi + 1.
  • the scale washer can optionally be deactivated or driven out of the rolling line.
  • a rolling mill according to the invention preferably the rolling mill of a CSP plant with the appropriate additional aggregates of the installation space of a rolling mill reduced significantly.
  • additional units within the finishing train can support the rolling process in terms of both in terms of process control as well as in terms of microstructure adjustment in the rolled product advantageous.
  • These auxiliary units require little space in the sense of the invention and are arranged between two finishing stands, whose distance is 5 - 25 m. In other words the space requirement between two scaffolds with the additional aggregates is much smaller than the intermediate strip length rolled there.
  • the thin slab which is preferably produced in the casting apparatus of a CSP plant, preferably has a thickness of ⁇ 120 mm.
  • a CSP plant is provided, which is safe without the use of a reversing Vorgerüsts and preferably alone using a variety of finishing stands as a rolling mill able to produce the desired product range from the thick tube band to thin strip.
  • the method and production of tube tape in a CSP plant may be described.
  • the TM process (thermo-technical process) in CSP plants usually consists of the step of one or more transformations of the austenitic starting structure in the recrystallizing temperature range to produce a uniform, fine, recrystallized austenite microstructure, and the subsequent step of one or more transformations of the recrystallized, austenitic structure to produce as flat as possible, dislocation rich, non-recrystallized austenite structure (so-called pan-cake structure). These steps are also referred to as austenite conditioning.
  • the cooling of the austenitic microstructure conditioned by means of the first step for producing a fine-grained microstructure in the finished hot strip or hot sheet in the phase transformation takes place.
  • the microstructure of the finished hot strip or hot plate then consists of the combination of ferrite, perlite, bainite and martensite, wherein the content of these four structural components can be between 0% and 100% in each case:
  • thermo-mechanical hot rolling however, is that to produce the uniformly finely re-crystallized austenite grain in the recrystallizing region as large as possible deformation must be applied.
  • a finely recrystallized microstructure is characterized in that both the former, non-uniform casting structure and individual coarse grains or microstructure areas are completely converted into a uniform, finely recrystallized microstructure with a small scattering about the average grain size. Often, these conditions are not or not fully met and result in insufficient conditioned austenite structure.
  • step of hot rolling in the recrystallizing temperature range of austenite is followed by a step in the non-recrystallizing temperature range of austenite, with a large ratio of the thickness of the finished hot strip and / or hot plate and the thickness of the slab or intermediate strip, there is often little residual deformation for the subsequent forming operations in the thermomechanical treatment. Even when switching off individual scaffolding this is sometimes not sufficient to convert any remaining remains of the casting structure and individual coarse grains or microstructure areas in a uniform, flat pan-cake microstructure of non-recrystallized austenite grains. In this case too, there is insufficiently conditioned austenite.
  • insufficiently conditioned austenite leads disadvantageously in the finished hot strip or hot sheet to individual coarser grains outside the normal distribution around the mean grain size and / or to the structural regions whose substructure is characterized by small-angle grain boundaries.
  • microstructures lead to poorer mechanical properties of the finished strip or sheet, in particular to a reduced toughness.
  • the deformation in the recrystallizing region of the austenite is of decisive importance for the properties of the finished steel strip or sheet.
  • the degree of deformation required in the first step of the thermomechanical treatment can be partially replaced by a raised inlet temperature, this possibility is limited by the maximum oven temperature as well as the cooling in the roller contact and by thermal radiation between the stands, if involved in this step several scaffolds are.
  • a CSP system is preferred in which a heating device is arranged between at least two stands Fi and Fi + 1 of the rolling train, in particular between the first stand F1 and the second stand F2. If necessary, this heater can also be designed to be retractable out of the rolling train and into it. Particular preference is given to an induction heating device, in particular having one to four inductor elements. Overall, a compact design as possible with high power density is sought in such a heating device. This power density is preferably in a range of at least 1500 megawatts per square meter, preferably about 4000 megawatts per square meter, as measured by the power density actually introduced into the band or induced in the band. In this case, the term inductor element designates that component via which the power is introduced into the strip. One or a plurality of inductor elements may thus form an induction heater.
  • the rolling mill is preferably used as Konti Avenue, within which the above described in the embodiment described forming operations at high temperature and optionally with the support of the heating between finishing stands and optional cooling the rolling at low temperature is applied.
  • Konti no roughing stand or heavy plate framework, as is customary in a thick slab installation, is used.
  • the forming steps are coupled, that is, all scaffolding involved are simultaneously engaged after Dünnbrammen- or Swissbandeinlauf.
  • the rolling stands are driven in tandem operation, thus in a mode of operation in which the thin slabs or the intermediate belt simultaneously pass through all the rolling stands.
  • individual scaffolding can also be driven up and therefore not participate in the forming work.
  • a method can be used in which the cast strand does not have to be divided by cutting into slabs, but rather continuously, preferably through a tunnel furnace, the hot rolling mill and this rolled hot rolled, cooled and transversely divided only before the reel and then is wound up into coils.
  • This procedure reduces the amount of scrap because there are no head and foot ends of the band.
  • thinner strip thicknesses preferably with a thickness of. ⁇ 1 millimeter because the danger of cobbles from entering the last stands of the hot rolling mill is limited to starting up thin ribbons.
  • endless rolling is the Feeding speed of the first active stand reduced to the casting speed, which can lead to increased temperature losses before and / or during the hot rolling. Therefore, higher rolling temperatures and thus heating of the belt are required for rolling in order to avoid rolling end temperatures in ferrite phase and / or in two phase area austenite plus ferrite.
  • Such a method and the described devices also allow in principle the production of steel grades with reduced austenite phase region, for example with silicon contents of> 1.0 percent. Higher rolling temperatures are then required for rolling in order to reliably avoid rolling end temperatures in the ferrite phase and / or in the two-phase region austenite plus ferrite. Such steel grades can be readily prepared on the CSP plant according to the invention.
  • an induction heater is installed between the front scaffolds or retracted at least into the area between the front scaffolds.
  • induction heating is used between the first and second or / and the second and third stands of a finishing train.
  • Induction heating is characterized by a comparatively low passage dimension in the thickness direction and is a sensitive component.
  • skis or other band buckling or unevenness often occur on the head, which endanger safe passage of the tube belt or thin strip by the induction heating or other aggregates (scissors, tinder scrubber) between two finishing stands .
  • the above-mentioned ski-up or down phenomenon the threading of the pre-rolled intermediate band in a severely hamper subsequent framework. In the worst case, the intermediate belt damages aggregates between the two finishing stands.
  • the minimization or elimination of the ski can be done for example by means of suitable hold-down rollers or by means of a Biemtreibers.
  • the pre-rolled intermediate strip head is cut by means of a suitable shearing device.
  • a pre-rolled intermediate strip can also be tufted at the head and ends when thin finished strips are to be produced in batch mode.
  • a descaling in the rolling direction behind the heating of the intermediate belt optionally after passing through the belt by the heater and a downstream pair of driver rollers before entering the intermediate belt in one or more further finishing mills , This ensures that a virtually contamination-free thin strip or tubular strip can be finish rolled without tinder damaging the strip or strip surface.
  • the adjustment of the slab or strip cooling upstream of the rolling stand Fi can be carried out in such a way that as symmetrical a temperature profile as possible is produced over the thickness of the rolling stock or so is influenced by targeted temperature control of the ski.
  • a trimming of the slab temperatures at the top and bottom is also possible for this purpose before the scaffold with a heater.
  • the installation of a straightening unit can also prevent the occurrence of an odd band (ski, curvature, curvature) with particularly simple and controllable means.
  • This device for correcting or avoiding a ski or band curvature in the form of a straightening unit can be a Niederhalterolle, hold-down, Niederhalterstreben, a Biesheddingtreiber, tape head straightening channel or a tape head pressing device in addition to a Rollenrichtmaschine.
  • a ski can be cut out of the rolling stock by means of a pair of scissors.
  • the occurrence of unevennesses in the intermediate band can preferably be detected by means of suitable surface distance sensors.
  • suitable sensors are mechanical, optical or other sensors known to those skilled in the art.
  • suitable measures for eliminating or reducing the detected odd band curve can be initiated or the intermediate band or slab can again be rejected.
  • the heater can not be protected from damage by band bends only in the manner described above; Also damage, in particular of induction heaters by remaining on the belt or thin strip cooling water can be avoided by the use of suitable blow-off, which is also particularly advantageous between the rolling stands of the finishing train according to the invention or retractable into this place.
  • the abovementioned additional units and measures for controlling the skis can preferably be used in a CSP finishing line for various application examples. However, it is also the use between finishing stands of a conventional rolling mill conceivable and provided.
  • FIG. 1 shows a part of a hot rolling mill 2 in a first embodiment according to the invention, in which the metal strip 1 extends through a first illustrated rolling stand and designated as Fi + 1 second rolling stand.
  • the distance between the stands Fi and Fi + 1 corresponds to between 5 and 25 m.
  • the belt 1 enters an induction heater 8 and then a pair of driver rollers 12.
  • a strip tension (even before reaching the tape head in the following frame) applied to the tape 1 and also on the tape 1 remaining water can be easily squeezed.
  • the pair of drive rollers 12 helps to set a precise setting speed on the scaffold Fi + 1.
  • a tension measuring roller or a looper (not shown) is arranged between the stands to ensure mass flow.
  • a cooling section 11 is arranged, with which the heated in the heater 8 to a temperature above the recrystallization temperature band 1 is cooled for a previously heated use example in a temperature range in the non-recrystallizing region.
  • the two devices 8 and 12 can also be arranged vice versa.
  • the arrangement of driving roller pairs 12 in front of and behind the heating device 8 is conceivable.
  • FIG. 2 shows a further embodiment of a hot rolling mill 2 according to the invention, of which only the finishing stand Fi and the finishing stand Fi + 1 are shown.
  • a heating device 8 is arranged for rapid heating of the metal strip 1 by means of induction heating.
  • a device 14 for correction / prevention a ski on the intermediate belt, which has left the finishing stand Fi arranged.
  • Such a device 14 for correcting / avoiding ski-ups or downs may for example be a bending-course driver or a hold-down roller.
  • Such devices 14 are intended to correct, ie eliminate or at least reduce to an acceptable minimum, the phenomenon of, for example, a raised tape head after exiting a rolling stand (so-called ski-up). This is mainly to avoid downtime due to inaccurate or not successful threading the intermediate tape head in downstream units, such as the rapid heating device 8, other units (scissors, tinder scrubber) or any other rolling stand Fi + 1.
  • the hot rolling mill 2 comprises at least one rolling stand, preferably the first rolling stand Fi, separate and non-coupled drives for the upper work roll Fia and the lower work roll Fib.
  • FIG. 3 shows a third embodiment of a hot rolling mill 2 according to the invention, in which between the first illustrated rolling stand Fi and the second illustrated rolling stand Fi + 1, a device 14 for correcting a ski on the insects, followed by a Schnelletzloomvorraum 8 is arranged. Between the rapid heating device 8 and the mill stand Fi + 1, a scale scrubber 15 is again arranged, can be safely removed on the adhering to the surfaces of the belt 1 scale before the entry of the belt 1 in the mill stand Fi + 1.
  • this embodiment of the invention may additionally comprise a pair of driver rollers (not shown) and / or cooling (not shown).
  • FIG. 4 shows a fourth embodiment of a hot rolling mill 2 according to the invention, in which between the first illustrated rolling stand Fi and the second illustrated rolling stand Fi + 1 in the rolling direction W of the belt 1, a pair of scissors 13, a Schnelletzloomvorraum 8, a pair of drive rollers 12 and a tinder scrubber 15 are arranged.
  • the scissors 13 is mainly used for cutting the tape head and possibly the tape end, where rolling or bends (so-called skis) may occur.
  • the scissors 13 on the one hand replaces the ski correction / avoidance devices (not shown) shown in the previous embodiments, the scissors 13 also advantageously assists the further rolling process by cutting off tongues which have a deleterious effect on the barrel in the subsequent rolling process of the belt 1 and for the work rolls of the subsequent stands may have.
  • FIG. 5 shows a fifth embodiment of a hot rolling mill 2 according to the invention, in which a finishing stand Fi, a device 14 for correcting / avoiding a ski-up, a pair of scissors 13 and a rapid heating 8 are arranged in the rolling direction W of the strip 1.
  • the metal strip 1 After leaving the rapid heating, the metal strip 1 enters a pair of driver rolls 12, through which residual water resting on the strip 1 is squeezed.
  • the metal strip 1 After leaving the driver roller pair 12, the metal strip 1 enters the scale scrubber 15, in the residual scale, which has formed on the surfaces of the strip 1, safely before entry of the strip 1 in the finishing stand Fi + 1 is removed.
  • the hot strip 1 heated in advance in the rapid heating device 8 can be cooled again and rolled out to the finished strip thickness.
  • the quick heater 8 and the scissors 13 can be arranged in the direction of tape travel alternatively also arranged vice versa.
  • the rapid heating device 8 and the scale washer 15 can be arranged at the same location in the strip running direction and alternatively be pushed laterally into the rolling line, so that either the scale washer 15 or the rapid heating device 8 can be used.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Control Of Metal Rolling (AREA)

Claims (17)

  1. Train de laminoir pour la fabrication de bandes métalliques, de préférence d'acier pour tube et/ou de bandes minces, dans lequel, entre deux cages de finition (Fi, Fi+1) qui se succèdent, sont disposés un dispositif de chauffage rapide (8) et un agrégat d'addition supplémentaire, caractérisé en ce que la distance séparant les cages (Fi, Fi+1), entre lesquelles vient se disposer le dispositif de chauffage rapide (8), s'élève de 5 à 25 m, et en ce que ledit au moins un agrégat d'addition supplémentaire disposé en plus du dispositif de chauffage rapide (8) est un agrégat de dressage par étirage, de préférence une dresseuse à galets (14).
  2. Train de laminoir selon la revendication 1, caractérisé en ce que la cage de laminoir (Fi) montée en amont par rapport au dispositif de chauffage rapide (8) et/ou des zones situées avant et après cette cage de laminoir (Fi) sont équipées d'éléments de réglage pour Influencer le bombement de la bande et/ou le relèvement de la tête du produit laminé.
  3. Train de laminoir selon l'une quelconque des revendications précédentes, caractérisé en ce que les cages de laminoir (Fi, Fi+1) sont des cages de finition d'un train continu de préférence compact.
  4. Train de laminoir selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il s'agit de préférence d'un train de laminoir dans une installation CSP qui fabrique des brames minces dont l'épaisseur est égale ou inférieure à 120 mm.
  5. Train de laminoir selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un dispositif de chauffage, en particulier un dispositif de chauffage par induction, comprenant de préférence de 1 à 4 éléments inducteurs, est disposé entre la première est la deuxième cage (F1, F2) et/ou entre la deuxième et la troisième cage (F2, F3) ou peut venir s'insérer entre lesdites cages.
  6. Train de laminoir selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins une paire de galets d'entraînement est disposée entre une cage (Fi) et la cage suivante (Fi+1) ou peut venir s'insérer entre lesdites cages.
  7. Train de laminoir selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un mécanisme pour corriger ou pour éviter un relèvement de la tête du produit laminé sur la bande intermédiaire est disposé entre une cage (Fi) et la cage suivante (Fi+1), de préférence avant le dispositif de chauffage, ou peut venir s'insérer entre lesdites cages.
  8. Train de laminoir selon la revendication 7, caractérisé en ce que le mécanisme pour corriger ou pour éviter un relèvement de la tête du produit laminé représente un rouleau de maintien, une plaque de maintien, une traverse de maintien, un redresseur courbe, un canal redresseur de la tête du produit laminé ou un mécanisme de compression de la tête du produit laminé.
  9. Train de laminoir selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins une cage de laminoir (Fi) présente des entraînements séparés pour les cylindres de travail supérieur et inférieur (Fia, Fib).
  10. Train de laminoir selon l'une quelconque des revendications précédentes, caractérisé en ce que, avant une cage de laminoir (Fi), est disposé un refroidissement ou un chauffage de la bande, au moyen duquel on peut régler la distribution de température sur l'épaisseur de la brame, respectivement de la bande pour influencer le relèvement de la tête et le bombement du produit laminé.
  11. Train de laminoir selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une cage de laminoir (Fi) présente, du côté entrée, un réglage de à hauteur de la table, au moyen duquel on peut régler la position de défilement de la bande.
  12. Train de laminoir selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une cisaille est disposée entre au moins deux cages de laminoir (Fi, Fi+1) ou peut venir s'insérer entre lesdites cages.
  13. Train de laminoir selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un laveur de calamine est disposé entre au moins deux cages de laminoir (Fi, Fi+1) ou peut venir s'insérer entre lesdites cages.
  14. Train de laminoir selon l'une quelconque des revendications précédentes, caractérisé en ce que la distance qui sépare deux cages qui se succèdent (Fi, Fi+1) est inférieure à la longueur de la bande intermédiaire laminée entre les cages.
  15. Train de laminoir selon l'une quelconque des revendications précédentes, caractérisé en ce que des capots calorifuges sont disposés entre au moins deux cages de laminoir (Fi, Fi+1), en particulier à titre de remplacement pour des agrégats retirés au préalable entre les cages de laminoir (Fi, Fi+1), ou peuvent venir s'insérer entre lesdites cages.
  16. Train de laminoir selon l'une quelconque des revendications précédentes, caractérisé en ce que le train de laminoir est relié à un modèle de processus par lequel on peut commander et on peut ajuster les différentes mesures et les différents réglages pour influencer le relèvement de la tête du produit laminé.
  17. Train de laminoir selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de chauffage rapide est de structure compacte et la puissance volumique qui est induite dans la bande s'élève à au moins 1500 MW par mètre carré, de préférence à environ 4000 MW (+/-18 %) par mètre carré.
EP11799672.8A 2010-12-16 2011-12-14 Train de laminoir pour la production d'acier tubulaire et de bandes minces Active EP2651578B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010063279A DE102010063279A1 (de) 2010-12-16 2010-12-16 Walzstraße zur Röhrenstahl- und Dünnbanderzeugung
PCT/EP2011/072815 WO2012080368A1 (fr) 2010-12-16 2011-12-14 Train de laminoir pour la production d'acier tubulaire et de bandes minces

Publications (3)

Publication Number Publication Date
EP2651578A1 EP2651578A1 (fr) 2013-10-23
EP2651578B1 true EP2651578B1 (fr) 2015-01-28
EP2651578B2 EP2651578B2 (fr) 2022-02-16

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EP11799672.8A Active EP2651578B2 (fr) 2010-12-16 2011-12-14 Train de laminoir pour la production d'acier tubulaire et de bandes minces

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US (1) US20130263634A1 (fr)
EP (1) EP2651578B2 (fr)
CN (1) CN103249506B (fr)
DE (1) DE102010063279A1 (fr)
RU (1) RU2552802C2 (fr)
WO (1) WO2012080368A1 (fr)

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JP6023563B2 (ja) * 2012-11-19 2016-11-09 アイシン精機株式会社 ロール成形方法およびロール成形装置
DE102013219507A1 (de) * 2013-05-03 2014-11-06 Sms Siemag Aktiengesellschaft Warmwalzwerk
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US20130263634A1 (en) 2013-10-10
EP2651578A1 (fr) 2013-10-23
CN103249506A (zh) 2013-08-14
CN103249506B (zh) 2016-10-26
DE102010063279A1 (de) 2012-06-21
RU2013132544A (ru) 2015-01-27
RU2552802C2 (ru) 2015-06-10
WO2012080368A1 (fr) 2012-06-21
EP2651578B2 (fr) 2022-02-16

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