EP1047510B1 - Procede et installation de production continue de produits plats et minces lamines a chaud - Google Patents

Procede et installation de production continue de produits plats et minces lamines a chaud Download PDF

Info

Publication number
EP1047510B1
EP1047510B1 EP98962221A EP98962221A EP1047510B1 EP 1047510 B1 EP1047510 B1 EP 1047510B1 EP 98962221 A EP98962221 A EP 98962221A EP 98962221 A EP98962221 A EP 98962221A EP 1047510 B1 EP1047510 B1 EP 1047510B1
Authority
EP
European Patent Office
Prior art keywords
stand
strip
train
hot strip
rolled
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
EP98962221A
Other languages
German (de)
English (en)
Other versions
EP1047510A1 (fr
Inventor
Harald Wehage
Ulrich Skoda-Dopp
Horst Jacobi
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.)
Salzgitter AG
SMS Siemag AG
Original Assignee
Salzgitter AG
SMS Demag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Salzgitter AG, SMS Demag AG filed Critical Salzgitter AG
Publication of EP1047510A1 publication Critical patent/EP1047510A1/fr
Application granted granted Critical
Publication of EP1047510B1 publication Critical patent/EP1047510B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • B21B1/22—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 plates, strips, bands or sheets of indefinite length
    • B21B1/24—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 plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
    • B21B1/26—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 plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
    • 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
    • B21B45/02—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 lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B2045/0212—Cooling devices, e.g. using gaseous coolants using gaseous coolants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2201/00—Special rolling modes
    • B21B2201/02—Austenitic rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2201/00—Special rolling modes
    • B21B2201/04—Ferritic rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2201/00—Special rolling modes
    • B21B2201/16—Two-phase or mixed-phase rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2273/00—Path parameters
    • B21B2273/06—Threading
    • B21B2273/08—Threading-in or before threading-in

Definitions

  • the invention relates to a production method and a system for endless Production of hot rolled thin flat products from thin cast Band, consisting of a single-skid road, a multi-skid Finishing line, an outfeed roller table with facilities for cooling the hot strip and the cooling devices upstream and downstream winding machines for Winding up the hot strip.
  • slabs are used as the starting material a thickness greater than 120 mm or thin slabs with thicknesses between 40 and 120 mm used.
  • the rolling mills generally consist of a single or multi-stand rough street in which the slabs in several Rolling passes are reduced in reverse operation, as well as a multi-stand Prefabricated street or a Steckel scaffold.
  • the hot strip length is either between a preliminary and a Finishing line, by speed-up in the finishing line or by coiler in front and reached behind the Steckel scaffold. In these cases it is a discontinuous process, i.e. Rough and finishing lines generally work decouples and roll the individual slabs.
  • the former consist of a multi-stand finishing train with an outfeed roller table Devices for cooling the hot strip to winding temperature and Winding machines for winding up the hot strip.
  • the plants for thin slabs> 65 mm exist due to the same final thickness necessary larger deformation work from a single or multi-stand Vorstrasse with more than one roll pass and a multi-stand finishing train as well as an outfeed roller table with facilities for cooling the hot strip Winding temperature and winding machines for winding the hot strip. Between There are facilities for heating and / or winding in the front and finishing lines of the preliminary strip, which is the necessary entry temperature of the hot strip into the Ensure the finishing train over the length of the hot strip.
  • the rolling mills are generally designed and operated so that the Forming in the individual stitches fully austenitic or mixed austenitic-ferritic.
  • the rolling temperature is above that in all passes GOS line of the iron-carbon diagram, with the finish rolling temperature in the last scaffolding of the finishing train to achieve a fine-grained structure should be above the GOS line.
  • the rolling temperature is in the last Scaffolding of the finishing train below the GOS line in the range from approx. 810 to 890 ° C.
  • This can be achieved with the same final thickness by lowering the Furnace outlet temperature of the slabs can be reached, which increases the proportion of in Solution micro-alloy elements is reduced and the quality of the Hot strip lowers.
  • There is also a reduction in the rolling speed without a lowering of the furnace outlet temperature of the slabs is possible, whereby a the rolling stock is cooled more intensely. But that leads to the disadvantage of one reduced production. It is also possible to combine both measures with the disadvantages already mentioned.
  • the final rolling temperature is reduced to a minimum 720 ° C through those already mentioned for mixed austenitic-ferritic rolling Measures including their disadvantages.
  • the ferritic area is only in the Last two to three passes were achieved, causing the decrease in this area is low.
  • the conversion point lies (in the middle) within the finishing street and shifts as a result of temperature influences between the scaffolds Rolling force drops due to the lower deformation resistance of the material in the leads ferritic temperature range. This is disadvantageous for the roll bending and Roller adjustment systems to ensure thickness, profile and contour as well Flatness of the hot strip, as these systems measure the rolling force as Use output signal.
  • EP 0 761 325 A1 is behind a multi-stand rolling mill Outfeed roller table, facilities for cooling the hot strip and downstream Winding machines for winding up the austenitic rolled hot strip second downstream single or multi-stand rolling mill for ferritic rolling proposed by hot strip. That in the first multi-stand rolling mill The hot strip is initially austentitically deformed with the help of the between the two Mills arranged devices for cooling in the ferritic Cooled temperature range.
  • the downstream single or multi-stand rolling mill is used exclusively for ferritic rolling, which practically means two rolling trains are required, which represents a high investment in plant technology.
  • EP 0 761 326 A1 proposes a production plant consisting of a multi-stand rolling mill, an outfeed roller table with facilities for cooling of the hot strip and downstream winding machines, in which at least that the first scaffold is designed as a reversing scaffold with at least one coiler are upstream and downstream, between the upstream reel furnace and the following reversing frame a controllable cooling device is provided. After this Rolling the hot strip in the austenitic temperature range becomes the hot strip cooled in the ferritic temperature region by means of the controllable cooling device and wound up in the reel furnace. The structural transformation takes place in the reel furnace. Then it is reversed by the one downstream of the coiler Rolled mill in the ferritic temperature range. Austenitic rolling is not cooled. The hot strip can be between the Rolling mills are heated. Different arrangements of scaffolding and Coiler furnaces are proposed. The characteristic is in any case Reverse operation, making the proposed production facility not endless can roll continuously. Increase the additional reel furnace (s) required the plant engineering effort.
  • Production plants for rolling hot strip are also known Thin slabs in which a single or multi-stand rough road facilities for cooling and heating are subordinate. These facilities are one Multi-stand finishing train with an outfeed roller table, facilities for cooling and winding machines for winding the hot strip downstream.
  • At least two roll passes are made in austenitic in the Vorstrasse Temperature range, either in multiple stands in continuous operation or in a single stand in reverse operation.
  • the hot strip is used in the facilities Cooling between the roughing and finishing lines to the temperature of the respective one Temperature range cooled and then ferritic or in the finishing train mixed austenitic-ferritic finish-rolled.
  • All known or proposed production systems is the run of the Starting material through a furnace or an inductive heating system for Purpose of heating or temperature compensation across thickness and width or the homogenization of the starting material before rolling together.
  • the known production plants need facilities for descaling the Starting material before the first stitch and before the finishing train.
  • the need the descaling of the starting material before the first stitch results from the scaling of the surface of the starting material during this Pass through a heating, equalizing or homogenizing furnace or one inductive heating system.
  • the need for descaling before The finishing mill results from the secondary scaling of the hot strip in the Area of the Vorstrasse and between the Vorstrasse and Fertigstrasse.
  • the production process in the known or proposed production facilities is discontinuous or in the case of welding hot strip after Vorides only continuously in the finishing train.
  • Roll gap lubrication can be carried out in the scaffolding of the roughing and finishing train known production plants only after tapping the raw material or of the hot strip in the respective scaffolding, otherwise the Gripping condition is not guaranteed.
  • the associated with the roll gap lubrication Reduction The friction between the rolling stock and the roll leads to a reduction in the Resistance to deformation and thereby the rolling force, the rolling moment and the required drive power.
  • the surface quality of the hot strip is elevated.
  • these advantages do not arise for the tapping piece of the Hot strip, which after rolling out a considerable part of the length of the Makes up hot strip.
  • the production facilities for the Load condition can be designed without roll gap lubrication.
  • the object of the invention is to: Production plant for the austenitic, the mixed austenitic-ferritic and the ferritic rolling of thin hot strip in an endlessly fully continuous To create a process that eliminates the aforementioned drawbacks and problems and on which all three previously mentioned technologies can be realized
  • the task is solved with a production plant of the type mentioned at the beginning Art according to the invention in that the cast in a thickness of 5 - 18 mm Belt before reaching the single-deck forecourt under a protective gas atmosphere controlled cooled and the pre-rolled hot strip in one of the rough streets downstream device either controlled cooled, heated or on Temperature is maintained and the edges of the hot strip are reheated.
  • the production process is specially designed for rolling thin cast strip all three possible technologies, i.e. the austenitic, the austenitic-ferritic and the ferritic rolling.
  • the austenitic the austenitic-ferritic and the ferritic rolling.
  • the rolling temperature in the austenite region is in the single-stand forecourt by variably controlled cooling of the casting belt in front of the Vorstrasse set.
  • the thickness is 5 to 18 mm under an adjustable protective gas atmosphere required parameters temperature, austenite starting grain size, the degree of Scale and chemical composition of the scale before the first Roll stitch set.
  • carbon steels, low-alloy steels are low Carbonized steels and microalloyed steels through a material-dependent acceptance from 45 to 70% in the single-armed Vorstrasse in connection with the in austenitic range of variably adjustable rolling temperature and which adapts to the Forming subsequent cooling, heating or maintaining the temperature until Recrystallize entry into the multi-stand finishing train and the initial grain size of the casting belt with one stitch greatly reduced, but at least halved becomes.
  • the Rolling temperature before the multi-stand finishing train through the behind the roughing train arranged device for controllable cooling, heating or holding the Hot strip temperature optionally in the austenite or ferrite area or in the Transition range from austenite to ferrite is selectively adjustable.
  • the rolling temperature in the hot strip becomes a fine-grained structure grain size classes 6 - 10 according to DIN 50601.
  • the material-dependent high decrease of 45 - 70% in the one-stand forelevel and the variably controllable cooling, heating or maintaining the temperature of the Hot strip is the recrystallized hot strip before it enters the finishing train and greatly reduced the starting grain size of the casting belt.
  • ferritic is endless and the mixed austenitic-ferritic endless continuously rolled hot strip immediately after the exit from the last scaffolding of the multi-stand finishing train in heat-insulated Winding machines wound into a bundle and one homogeneous across the bundle width is subjected to slow cooling.
  • the thin casting belt is provided with a starting piece, suggested that the approach piece be the open scaffolding of the Vorstrasse and the Multi-stand finishing train passes undeformed in the rolling direction and with scissors is separated from the rest of the casting line.
  • the rollers already during the closing of the open scaffolding of the single scaffold road and the multi-stand finishing train to the final thickness required for rolling to lubricate the intended nip.
  • the roll gap lubrication during the entire rolling time takes place, the wear on the work rolls decreases, which means that the thickness and profile of the total hot strip length can be improved and the service life of the rollers is increased.
  • the single-arm Vorstrasse and the multi-stand finishing train on the for rolling the required final thickness values provided and after chopping the while of the rolling process rolled hot strip by means of scissors the stationary Condition of fully continuous endless rolling of thin casting belt has been reached and the austenitic, mixed austenitic-ferritic or ferritically rolled Hot strip can be cut into bundle lengths using scissors.
  • the invention provides that the degree of scaling on the Surface of the raw material and the chemical composition of the Tinder by controllable cooling of the casting belt under a protective gas atmosphere is specifically set until the first roll pass.
  • the invention results in an overall system concept with which in an optimal manner a fully continuous endless rolling process can be realized, all three possible rolling technologies for the production of hot strip, i.e. the austenitic, which allows mixed austenitic-ferritic and ferritic rolling.
  • a production system with which continuous and continuous casting of thin casting tape Strip material with small thicknesses both austenitic and ferritic as well as mixed austenitic-ferritic with a total decrease of at least 65% based on the entire system can be manufactured is in the single drawing figure shown and will be described below.
  • It consists of one Thin slab caster 12, a first device 2 for cooling the casting belt under protective gas, a single-stand Vorstrasse 3, a multi-stand finishing train 5, a second device 4 for optionally cooling, heating or holding the Temperature of the hot strip between roughing and finishing mill, a pair of scissors 6 for Cutting the hot strip from bundle to bundle, using a run-out roller table Means 8 for cooling the rolled hot strip and one of the finishing train 5 downstream winding machines 10 for winding the finished tape
  • the rolling process begins with the targeted cooling of the solidified Casting belt with a thickness of 5 to 18 mm under an adjustable protective gas atmosphere, whereby the technologically required parameters temperature, austenite starting grain size Degree of scaling and the chemical composition of the scale before first roll pass can be set
  • the approach piece of the thin casting belt passes through the open undeformed Scaffolding of the single-stand Vorstrasse 3 and the multi-stand finishing street 5 in Rolling direction 11 and with the scissors 6 downstream of the finishing train remaining casting belt separated with one or more cuts.
  • a roller gap lubrication can be applied to the stands while the stands are still being closed Roll gaps provided for rolling the required final thickness as the gripping condition is due to the continuous up to the nip position increasing decrease is guaranteed.
  • the source material is endless in the single-storey Vorstrasse 3 with a material-dependent decrease of 45 to 70% for carbon steels, low alloy Steels, low-carbon and micro-alloyed steels in a horizontal stitch in austenitic temperature range rolled.
  • edges of the casting belt are in front of the horizontal stitch in a single-stand Vor No 3 flanged vertical frame using special compression calibers slightly deformed, which means that the casting belt is simultaneously centered in the single-arm Vorstrasse arrives.
  • the hot strip passes through a device 4 for controllable Cooling, heating or maintaining the temperature, thereby reducing the temperature of the Hot strip before entering the multi-stand finishing train 5 targeted in the austenite or is adjustable in the ferrite area or in the transition area from austenite to ferrite
  • the material-dependent high decrease of 45 - 70% in the single-storey Vorstrasse 3 and the means 4 for controllable cooling, heating or holding the Temperature adjustable temperature of the hot strip is the hot strip before its entry into the finishing train recrystallized and the starting grain size of the Casting belt greatly reduced.
  • the hot strip is processed with a total material-dependent decrease of more than 50% to thin hot strip rolled, which in connection with the specifically adjustable rolling temperature fine-grained structure after rolling.
  • the ferritic and the mixed austenitic-ferritic endless fully continuous Rolled hot strip is insulated immediately after the finishing train Winding machines 7 wound into a bundle.
  • the austenitic, endless, fully continuously rolled hot strip runs through Leaving the finishing train 5, a cooling section 8 with forced cooling of and then a device for cooling the hot strip Winding temperature with targeted structural transformation.
  • the production system is adjusted once after starting up, after which one constant high quality of the hot strip over its length in the endless fully continuous process is achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Formation And Processing Of Food Products (AREA)

Claims (17)

  1. Procédé de production pour engendrer sans fin des produits plats laminés à chaud à partir de feuillard coulé de façon mince dans une installation constituée d'un train ébaucheur (3) à une cage, d'un train finisseur (5) à plusieurs cages, d'un train de rouleaux de sortie ayant des dispositifs (8, 9) pour refroidir le feuillard chaud, ainsi que des machines d'enroulement (7, 10) disposées en amont et en aval pour enrouler le feuillard chaud,
    caractérisé en ce que le feuillard coulé à une épaisseur de 5 - 18 mm est refroidi de façon commandée avant d'atteindre le train ébaucheur (3) à une cage sous une atmosphère de gaz protecteur et le feuillard chaud prélaminé est refroidi, réchauffé ou maintenu à température de façon commandée au choix dans un dispositif (4) disposé en aval du train ébaucheur (3), et les bords du feuillard chaud sont réchauffés.
  2. Procédé de production selon la revendication 1,
    caractérisé en ce que la température de laminage se trouvant dans le domaine austénitique dans le train ébaucheur (3) à une cage est réglée par refroidissement commandé de façon variable du feuillard coulé avant le train ébaucheur (3).
  3. Procédé de production selon la revendication 1 et la revendication 2,
    caractérisé en ce que des aciers au carbone, des aciers faiblement alliés, des aciers faiblement carburés et des aciers micro-alliés recristallisent par une réduction dépendant de la matière de 45 à 70 % dans le train ébaucheur (3) à une cage en relation avec la température de laminage pouvant être réglée de façon variable dans le domaine austénitique et le refroidissement, chauffage ou maintien de la température (4), se raccordant à la déformation, jusqu'à l'entrée dans le train finisseur (5) à plusieurs cages, et la taille des grains initiale du feuillard coulé est fortement diminuée en uniquement une passe, mais au moins divisée par deux.
  4. Procédé de production selon la revendication 1 et la revendication 2,
    caractérisé en ce que la température de laminage avant le train finisseur (5) à plusieurs cages est réglable de façon visée par le dispositif (4) agencé derrière le train ébaucheur (3) pour le refroidissement, le chauffage ou le maintien de la température du feuillard chaud pouvant être commandé, au choix, dans le domaine austénitique ou dans le domaine ferritique ou dans le domaine de transition de l'austénite à la ferrite.
  5. Procédé de production selon les revendications 1 à 4,
    caractérisé en ce qu'une structure à grains fins des classes de taille de grains 6 - 10 selon DIN 50601 est engendrée dans le feuillard chaud par une réduction totale dépendant de la matière supérieure à 50 % dans le train finisseur (5) à plusieurs cages en relation avec la température de laminage pouvant être réglée de façon visée.
  6. Procédé de production selon les revendications 1 à 5,
    caractérisé en ce que le feuillard chaud laminé de façon totalement continu sans fin de façon ferritique et sans fin de façon mélangée austénitique-ferritique est enroulé en la bobine directement après la sortie de la dernière cage du train finisseur (5) à plusieurs cages dans des machines d'enroulement (7) isolées thermiquement et est soumis à un refroidissement lent homogène sur la largeur de la bobine.
  7. Procédé de production selon les revendications 1 à 5,
    caractérisé en ce que le feuillard chaud laminé de façon totalement continue sans fin de façon austénitique est tout d'abord refroidi de façon forcée du haut (8) après la sortie de la dernière cage du train finisseur (5) à plusieurs cages, et le feuillard chaud est ensuite refroidi (9) à la température d'enroulement pour une transformation de structure visée.
  8. Procédé de production selon les revendications 1 à 5,
    caractérisé en ce que le feuillard coulé mince est muni d'une pièce de démarrage qui passe les cages ouvertes du train ébaucheur (3) à une cage et du train finisseur (5) à plusieurs cages de façon non déformée dans la direction de laminage et est séparée du feuillard coulé restant par la cisaille (6).
  9. Procédé de production selon les revendications 1 à 5 et 8,
    caractérisé en ce que les cages ouvertes du train ébaucheur (3) à une cage et du train finisseur (5) à plusieurs cages, après la séparation de la pièce de démarrage du feuillard coulé mince au moyen de la cisaille (6), sont fermées sur les emprises des cylindres prévues pour le laminage de l'épaisseur finale nécessaire, et la pièce, laminée pendant le processus de fermeture, du feuillard chaud est soit coupée à l'aide d'une cisaille (6), soit enroulée au moyen des machines d'enroulement (7, 10).
  10. Procédé de production selon les revendications 1 à 9,
    caractérisé en ce que, pour diminuer le frottement entre la matière laminée et les cylindres et, ainsi, pour diminuer les forces de laminage, les moments de laminage et pour augmenter la qualité de surface sur toute la longueur du feuillard chaud laminé, les cylindres sont déjà lubrifiés pendant la fermeture des cages ouvertes du train ébaucheur (3) à une cage et du train finisseur (5) à plusieurs cages sur les emprises des cylindres prévues pour le laminage de l'épaisseur finale nécessaire.
  11. Procédé de production selon la revendication 10,
    caractérisé en ce que la lubrification des emprises des cylindres est effectuée pendant toute la durée de laminage.
  12. Procédé de production selon les revendications 1 à 5 et 8 à 11,
    caractérisé en ce que, après la fermeture des emprises des cylindres du train ébaucheur (3) à une cage et du train finisseur (5) à plusieurs cages aux valeurs prévues pour le laminage de l'épaisseur finale nécessaire et après la coupe de la pièce de feuillard chaud laminée pendant le processus de fermeture au moyen de la cisaille (6), l'état stationnaire du laminage sans fin totalement continu est atteint par le feuillard coulé mince, et le feuillard chaud laminé de façon austénitique, mélangé austénitique-ferritique ou ferritique est séparé en longueurs de bobine au moyen de la cisaille (6).
  13. Procédé de production selon les revendications 1 à 3,
    caractérisé en ce que, pour augmenter la qualité des bords et la précision du profil du feuillard chaud, les bords du feuillard coulé mince sont déformés dans une cage verticale bridée au train ébaucheur (3) à une cage à calibre à refouler spécial avec une faible réduction avant la passe horizontale et, simultanément, le feuillard coulé mince entre de façon centrale dans le train ébaucheur (3) à une cage.
  14. Procédé de production selon les revendications 1 à 13,
    caractérisé en ce que la matière de départ ou le feuillard chaud est laminé de façon non réversible en raison du processus de production totalement continu, sans fin.
  15. Procédé de production selon les revendications 1 à 14,
    caractérisé en ce que l'installation de production, en raison du processus de production totalement continu, sans fin, est réglée une fois après le démarrage, grâce à quoi une qualité élevée constante du feuillard chaud est atteinte sur sa longueur.
  16. Procédé de production selon les revendications 1 à 15,
    caractérisé en ce que le degré de calaminage sur la surface de la matière de départ et la composition chimique de la calamine sont réglés de façon visée jusqu'à la première passe de laminage par le refroidissement réglable du feuillard coulé sous une atmosphère de gaz protecteur.
  17. Installation de production pour la mise en oeuvre du procédé selon l'invention selon une ou plusieurs des revendications 1 à 16, constituée d'une machine de coulée (12) pour produire un feuillard coulé ayant une épaisseur de 5 - 18 mm, d'un dispositif pour refroidir le feuillard coulé sous un gaz protecteur (2), d'un train ébaucheur (3) à une cage, d'un train finisseur (5) à plusieurs cages, d'un dispositif (4) pour le refroidissement, chauffage ou maintien de la température du feuillard chaud, au choix, entre le train ébaucheur (3) et le train finisseur (5), d'une cisaille (6) pour séparer le feuillard chaud de bobine en bobine, d'un train de rouleaux de sortie ayant des dispositifs pour refroidir (8, 9) le feuillard chaud laminé, et de machines d'enroulement (7, 10) disposées en aval du train finisseur pour l'enroulement du feuillard fini.
EP98962221A 1997-12-17 1998-11-03 Procede et installation de production continue de produits plats et minces lamines a chaud Expired - Lifetime EP1047510B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19758108 1997-12-17
DE19758108A DE19758108C1 (de) 1997-12-17 1997-12-17 Produktionsverfahren und -anlage zur endlosen Erzeugung von warmgewalzten dünnen Flachprodukten
PCT/DE1998/003259 WO1999030847A1 (fr) 1997-12-17 1998-11-03 Procede et installation de production continue de produits plats et minces lamines a chaud

Publications (2)

Publication Number Publication Date
EP1047510A1 EP1047510A1 (fr) 2000-11-02
EP1047510B1 true EP1047510B1 (fr) 2002-04-24

Family

ID=7853523

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98962221A Expired - Lifetime EP1047510B1 (fr) 1997-12-17 1998-11-03 Procede et installation de production continue de produits plats et minces lamines a chaud

Country Status (9)

Country Link
US (1) US6527882B1 (fr)
EP (1) EP1047510B1 (fr)
JP (1) JP4677097B2 (fr)
AT (1) ATE216639T1 (fr)
AU (1) AU745206B2 (fr)
CA (1) CA2314171C (fr)
DE (2) DE19758108C1 (fr)
ES (1) ES2172948T3 (fr)
WO (1) WO1999030847A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008013488A1 (de) 2007-03-09 2008-09-11 Sms Demag Ag Vorrichtung zur Dickenmessung und Verfahren hierfür
DE102008061206A1 (de) 2008-01-15 2009-07-16 Sms Demag Ag Verfahren zur Herstellung von Bändern aus Metall und Produktionsanlage zur Durchführung des Verfahrens
DE102009032358A1 (de) 2008-12-09 2010-06-10 Sms Siemag Ag Verfahren zur Herstellung von Bändern aus Metall und Produktionsanlage zur Durchführung des Verfahrens
WO2010066412A1 (fr) 2008-12-09 2010-06-17 Sms Siemag Ag Procédé de production de bandes métalliques et installation de production pour la mise en oeuvre du procédé

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1303873B1 (it) * 1998-11-26 2001-03-01 Demag Italimpianti Spa Laminatoio a caldo per nastri sottili
DE19926228B4 (de) * 1999-06-10 2004-09-23 Vaw Aluminium Ag Verfahren zum Herstellen eines aus einem gewalzten Aluminiumwerkstoff erzeugten flächigen Guts und Verwendung des flächigen Guts zur Herstellung von Fahrzeugteilen
DE10038292A1 (de) * 2000-08-05 2002-02-14 Sms Demag Ag Produktionsverfahren und -anlage zur Erzeugung von dünnen Flachprodukten
JP2004306111A (ja) * 2003-04-09 2004-11-04 Ishikawajima Harima Heavy Ind Co Ltd 熱間圧延設備
DE102005052774A1 (de) * 2004-12-21 2006-06-29 Salzgitter Flachstahl Gmbh Verfahren zum Erzeugen von Warmbändern aus Leichtbaustahl
ITMI20060666A1 (it) * 2006-04-05 2007-10-06 Danieli Off Mecc Impianto di laminazione
JP5271512B2 (ja) * 2007-06-18 2013-08-21 Ｉｈｉメタルテック株式会社 熱間圧延装置
DE102007056192A1 (de) * 2007-11-21 2009-05-28 Sms Demag Ag Verfahren und Vorrichtung zum Herstellen eines Bandes aus Metall
AT506065B1 (de) * 2007-11-22 2009-06-15 Siemens Vai Metals Tech Gmbh Verfahren zum kontinuierlichen austenitischen walzen eines in einem kontinuierlichen giessprozess hergestellten vorbandes und kombinierte giess- und walzanlage zur durchführung des verfahrens
DE102009036378A1 (de) * 2009-08-06 2011-02-17 Sms Siemag Ag Verfahren und Vorrichtung zum Herstellen eines mikrolegierten Stahls, insbesondere eines Röhrenstahls
EP2305392A1 (fr) * 2009-10-05 2011-04-06 Siemens Aktiengesellschaft Procédé de laminage de matériaux de laminage et train de laminage doté d'au moins une cage de laminoir pour le laminage thermomécanique de matériaux de laminage
EP2656932A1 (fr) * 2012-04-26 2013-10-30 Siemens Aktiengesellschaft Laminage thermomécanique d'une plaque d'aluminium
DE102013214940A1 (de) 2013-07-30 2015-02-05 Sms Siemag Ag Gießwalzanlage und Verfahren zum Herstellen von Brammen
RU2643003C1 (ru) * 2013-12-26 2018-01-29 Поско Устройство и способ непрерывного литья и прокатки стального листа
CN103722015A (zh) * 2013-12-31 2014-04-16 一重集团大连设计研究院有限公司 热轧带钢生产线在线调宽设备
KR101736573B1 (ko) * 2015-06-03 2017-05-17 주식회사 포스코 연주압연방법 및 연주압연장치
IT201700028732A1 (it) * 2017-03-15 2018-09-15 Danieli Off Mecc Impianto combinato di colata continua e laminazione di nastri metallici a caldo
CN107413850B (zh) * 2017-06-28 2019-02-01 钢铁研究总院 用于直接轧制方矩形钢坯的输送过程铸轧衔接方法
CN113714293A (zh) * 2020-05-26 2021-11-30 上海梅山钢铁股份有限公司 一种基于热连轧机的铁素体生产极薄带钢的卷取方法
WO2022053482A1 (fr) * 2020-09-08 2022-03-17 Sms Group Gmbh Installation et procédé de coulée continue et de laminage ultérieur d'un feuillard d'acier
CN112496031B (zh) * 2020-11-17 2023-03-24 中冶赛迪上海工程技术有限公司 一种棒材高效轧制工艺及生产线
EP4015099B1 (fr) * 2020-12-15 2024-10-16 Primetals Technologies Austria GmbH Fabrication efficace en énergie d'un feuillard à chaud ferritique dans une installation composite de coulée et de laminage
CN115716086B (zh) * 2022-12-09 2023-11-21 中冶南方工程技术有限公司 热轧超薄带钢无头连铸连轧生产机组及其生产方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62234613A (ja) * 1986-04-01 1987-10-14 Kobe Steel Ltd 移送金属板の加熱制御装置
BR9404223A (pt) * 1993-04-26 1995-11-21 Nippon Steel Corp Chapa de aço fina tendo uma excelente capacidade de estitamento-flangeamento e processo para a produção da mesma
JPH08309406A (ja) * 1995-05-15 1996-11-26 Hitachi Ltd 連鋳直結熱間圧延システム
EP0753359B1 (fr) * 1995-07-10 2001-06-06 Kawasaki Steel Corporation Procédé et dispositif pour le laminage final en continu d'une bande en acier chaud
DE19531538A1 (de) * 1995-08-25 1997-02-27 Schloemann Siemag Ag Warmbandproduktionsanlage für ferritisches Walzen und Verfahren zur Erzeugung von ferritischem Walzband
US5743125A (en) * 1995-09-06 1998-04-28 Sms Schloemann-Siemag Aktiengesellschaft Hot strip production plant for rolling thin rolled strip
DE19540978A1 (de) * 1995-11-03 1997-05-07 Schloemann Siemag Ag Produktionsanlage zum kontinuierlichen- oder diskontinuierlichen Auswalzen von Warmband
DE19600990C2 (de) * 1996-01-14 1997-12-18 Thyssen Stahl Ag Verfahren zum Warmwalzen von Stahlbändern
DE19605008A1 (de) * 1996-01-30 1997-07-31 Mannesmann Ag Verfahren zum Walzen von Warmband, insbesondere Warmbreitband
DE19613718C1 (de) * 1996-03-28 1997-10-23 Mannesmann Ag Verfahren und Anlage zur Herstellung von warmgewalztem Stahlband
NL1003293C2 (nl) * 1996-06-07 1997-12-10 Hoogovens Staal Bv Werkwijze en inrichting voor het vervaardigen van een stalen band.
GB2322320A (en) * 1997-02-21 1998-08-26 Kvaerner Metals Cont Casting Continuous casting with rolling stages separated by a temperature controlling stage
FR2795005B1 (fr) * 1999-06-17 2001-08-31 Lorraine Laminage Procede de fabrication de toles aptes a l'emboutissage par coulee directe de bandes minces, et toles ainsi obtenues

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008013488A1 (de) 2007-03-09 2008-09-11 Sms Demag Ag Vorrichtung zur Dickenmessung und Verfahren hierfür
WO2008110330A1 (fr) 2007-03-09 2008-09-18 Sms Siemag Ag Dispositif de mesure d'épaisseur et procédé associé
DE102008061206A1 (de) 2008-01-15 2009-07-16 Sms Demag Ag Verfahren zur Herstellung von Bändern aus Metall und Produktionsanlage zur Durchführung des Verfahrens
DE102009032358A1 (de) 2008-12-09 2010-06-10 Sms Siemag Ag Verfahren zur Herstellung von Bändern aus Metall und Produktionsanlage zur Durchführung des Verfahrens
WO2010066412A1 (fr) 2008-12-09 2010-06-17 Sms Siemag Ag Procédé de production de bandes métalliques et installation de production pour la mise en oeuvre du procédé
KR101332196B1 (ko) * 2008-12-09 2013-11-25 에스엠에스 지마크 악티엔게젤샤프트 금속 스트립 제조 방법 및 이 방법을 실행하기 위한 생산 시스템
TWI421138B (zh) * 2008-12-09 2014-01-01 Sms Siemag Ag 製造金屬帶的方法及實施此方法的生產設備
CN102245319B (zh) * 2008-12-09 2014-11-26 Sms西马格股份公司 用于制造由金属制成的带的方法和用于执行该方法的生产设备

Also Published As

Publication number Publication date
CA2314171C (fr) 2007-04-24
DE19758108C1 (de) 1999-01-14
AU745206B2 (en) 2002-03-14
JP4677097B2 (ja) 2011-04-27
AU1749399A (en) 1999-07-05
EP1047510A1 (fr) 2000-11-02
ES2172948T3 (es) 2002-10-01
CA2314171A1 (fr) 1999-06-24
JP2002508253A (ja) 2002-03-19
ATE216639T1 (de) 2002-05-15
US6527882B1 (en) 2003-03-04
WO1999030847A1 (fr) 1999-06-24
DE59803943D1 (de) 2002-05-29

Similar Documents

Publication Publication Date Title
EP1047510B1 (fr) Procede et installation de production continue de produits plats et minces lamines a chaud
EP0889762B1 (fr) Procede pour fabriquer un feuillard d'acier lamine a chaud
DE3241745C2 (de) Verfahren zum Herstellen von warmgewalztem Stahlband aus stranggegossenem Vormaterial in unmittelbar aufeinanderfolgenden Arbeitsschritten
EP0771596B1 (fr) Installation pour laminer à chaud des bandes en continu ou en discontinu
EP1951451B1 (fr) Procede de fabrication d'un feuillard d'acier lamine a chaud et installation combinee de coulee et de laminage en vue de la mise en oeuvre du procede
EP0761326B1 (fr) Installation pour la production d'une bande mince laminée à chaud
EP1305122B1 (fr) Procede et installation de fabrication de produits plats minces
DE202011110913U1 (de) Anlage zur Herstellung von flachgewalzten Produkten
EP0666122A1 (fr) Procédé et installation pour la fabrication de bandes d'acier laminées à chaud à partir d'ébauches coulées en continu
WO2021013488A1 (fr) Fabrication d'une bande d'acier pouvant être emboutie dans une installation combinée de coulée et de laminage
DE19600990C2 (de) Verfahren zum Warmwalzen von Stahlbändern
DE4041206C2 (de) Verfahren und Anlage zur Herstellung von warmgewalztem Stahlband, insbesondere für Edelstähle aus stranggegossenem Vormaterial
EP0761325B1 (fr) Installation et procédé pour la production d'une bande d'acier ferritique laminée à chaud
DE19512953A1 (de) Verfahren und Vorrichtung zur Herstellung von warmgewalztem Stahlband
DE19538341A1 (de) Warmbandproduktionsanlage für das Walzen von dünnem Walzband
EP0823294A1 (fr) Procédé de fabrication d'une bande en acier basse et ultra basse de teneur en carbon
EP1059125A2 (fr) Procédé pour la fabrication de bandes métalliques
DE10025080A1 (de) Verfahren zum Herstellen von Metallband
WO2022179890A1 (fr) Installation intégrée de coulée-laminage et procédé de fabrication d'une bande chaude ayant une épaisseur finale < 1,2 mm sur l'installation intégrée de coulée-laminage
EP3725450A2 (fr) Procédé et dispositif de fabrication d'une matière composite multicouche
EP3943210A1 (fr) Installation composite de coulée et de laminage destinée à la fabrication d'une bande finie laminée à chaud à partir d'un acier fondu

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: 20000529

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE DE ES FR GB IT LU NL SE

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 20010910

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE ES FR GB IT LU NL SE

REF Corresponds to:

Ref document number: 216639

Country of ref document: AT

Date of ref document: 20020515

Kind code of ref document: T

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

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

Effective date: 20020426

REF Corresponds to:

Ref document number: 59803943

Country of ref document: DE

Date of ref document: 20020529

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2172948

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20030127

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 59803943

Country of ref document: DE

Representative=s name: ANWALTSKANZLEI MEISSNER & MEISSNER, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 59803943

Country of ref document: DE

Owner name: SALZGITTER AG, DE

Free format text: FORMER OWNERS: SALZGITTER AG, 38239 SALZGITTER, DE; SMS SIEMAG AKTIENGESELLSCHAFT, 40237 DUESSELDORF, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 59803943

Country of ref document: DE

Owner name: SMS GROUP GMBH, DE

Free format text: FORMER OWNERS: SALZGITTER AG, 38239 SALZGITTER, DE; SMS SIEMAG AKTIENGESELLSCHAFT, 40237 DUESSELDORF, DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 18

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 19

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 20

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

Ref country code: LU

Payment date: 20171120

Year of fee payment: 20

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

Ref country code: DE

Payment date: 20171121

Year of fee payment: 20

Ref country code: NL

Payment date: 20171120

Year of fee payment: 20

Ref country code: FR

Payment date: 20171121

Year of fee payment: 20

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

Ref country code: ES

Payment date: 20171220

Year of fee payment: 20

Ref country code: GB

Payment date: 20171123

Year of fee payment: 20

Ref country code: BE

Payment date: 20171120

Year of fee payment: 20

Ref country code: AT

Payment date: 20171121

Year of fee payment: 20

Ref country code: IT

Payment date: 20171124

Year of fee payment: 20

Ref country code: SE

Payment date: 20171120

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59803943

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MK

Effective date: 20181102

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20181102

REG Reference to a national code

Ref country code: BE

Ref legal event code: MK

Effective date: 20181103

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK07

Ref document number: 216639

Country of ref document: AT

Kind code of ref document: T

Effective date: 20181103

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

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 EXPIRATION OF PROTECTION

Effective date: 20181102

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20220127

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 EXPIRATION OF PROTECTION

Effective date: 20181104