EP0804300B1 - Procede et dispositif de production d'une feuille d'acier presentant les proprietes d'un produit lamine a froid - Google Patents

Procede et dispositif de production d'une feuille d'acier presentant les proprietes d'un produit lamine a froid Download PDF

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Publication number
EP0804300B1
EP0804300B1 EP95932632A EP95932632A EP0804300B1 EP 0804300 B1 EP0804300 B1 EP 0804300B1 EP 95932632 A EP95932632 A EP 95932632A EP 95932632 A EP95932632 A EP 95932632A EP 0804300 B1 EP0804300 B1 EP 0804300B1
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EP
European Patent Office
Prior art keywords
rolling
strip
cooling
process according
thickness
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
EP95932632A
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German (de)
English (en)
Other versions
EP0804300A1 (fr
Inventor
Fritz-Peter Pleschiutschnigg
Ingo Von Hagen
Wolfgang Bleck
Paul Splinter
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.)
SMS Siemag AG
Original Assignee
Mannesmann AG
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Priority claimed from DE19520832A external-priority patent/DE19520832A1/de
Application filed by Mannesmann AG filed Critical Mannesmann AG
Publication of EP0804300A1 publication Critical patent/EP0804300A1/fr
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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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/021—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular fabrication or treatment of ingot or slab
    • C21D8/0215—Rapid solidification; Thin strip casting
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot 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
    • 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
    • B21B1/30—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 non-continuous process
    • B21B1/32—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 non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
    • B21B1/34—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 non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work by hot-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
    • B21B1/46—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
    • B21B1/466—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 non-continuous process, i.e. the cast being cut before 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
    • B21B2201/12—Isothermic rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2201/00—Special rolling modes
    • B21B2201/14—Soft reduction
    • 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
    • B21B45/02—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
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
    • Y10T29/49988—Metal casting
    • Y10T29/49991—Combined with rolling

Definitions

  • the invention relates to a method for producing steel strip Cold rolling properties according to the preamble of claim 1 as well as a plant for carrying out this process.
  • EP 0 541 574 B1 discloses a generic method in which finished strip with cold rolling properties is produced directly in a hot rolling mill from a raw material produced by casting close to the final dimension. It provides that a thin slab strand with a maximum thickness of 100 mm is first produced in a continuous caster, with a rolling device being arranged directly behind the continuous casting mold, on which the casting strand is rolled to the solidification thickness with a liquid and solid core (casting rollers). The thin slab strand is then descaled and hot rolled to a thickness of 10 - 30 mm at temperatures above 1100 ° C on a rolling device with, for example, three stands. The intermediate strip, which is hot-rolled in this way, is divided into partial lengths using band shears.
  • the strip-shaped material Before further hot rolling, preferably before coiling, the strip-shaped material is heated again to a hot rolling temperature above 1100 ° C. by inductive heating. The second hot rolling is carried out at a temperature above Ar 3 . Immediately afterwards there is cooling to a temperature below Ar 3 , preferably to a temperature in the range 600-250 ° C. The strip material thus produced is then finish-rolled by cold rolling on one or more stands connected in series and wound into coils.
  • the known method aims at the production of cold rolled strip with one as little energy expenditure as possible.
  • the methods are used on the one hand casting close to final dimensions (thin slab production) and casting rolling, i.e. the reduction of the thickness of the hot casting strand with a partially still liquid core.
  • hot rolling becomes part of that from the continuous casting process remaining heat.
  • the disadvantage here is the need, despite the Use of the heat from the continuous casting an inductive heating of the provide band-shaped intermediate product for the second part of hot rolling have to.
  • the object of the invention is a method and a system for carrying it out specify in which a separate reheating of the band-shaped Intermediate product and the associated energy and plant costs be avoided.
  • the properties should be improved as far as possible of the material produced in the direction of cold rolling properties.
  • the present invention only a single contiguous Hot rolling process before, so there is no second hot rolling process and necessary inductive intermediate heating. Instead it is done According to the invention, hot rolling in a single pass, at the end accelerated cooling to a temperature in the range of 850 to 600 ° C. At this temperature is then at least by isothermal rolling three rolling passes, each with a thickness reduction of at least 35% done, the finished steel strip is generated and following this finish rolling accelerated to a temperature of no more than 100 ° C. In contrast, in the known method, the finish rolling takes place at a comparatively significantly lower temperature (approx. 250 to 600 ° C).
  • ⁇ T 0 to 20 ° C.
  • the method should expediently be operated in such a way that the heat input through a specially introduced deformation work ("speed up") is always above the expected heat loss through radiation and the Temperature control via targeted cooling between the rolling passes is ensured. If namely the actual temperature of the steel strip has fallen below a critical value during the rolling process, it is hardly possible anymore, by changing the rolling parameters Raising to achieve the desired value.
  • a melt from a steel preferably from a Deep-drawing steel, filled into an intermediate vessel (tundish) 11.
  • the intermediate vessel 11 leaves the molten steel contained in a continuous flow into one below Arranged continuous casting mold 12 flow, which is not shown Has liquid cooling and to form a casting strand consisting of Strand shell and liquid core leads.
  • the hot comes Casting strand in a arranged below the continuous casting mold 12 Casting roll device, the casting strand with the partially liquid core in thickness further reduced.
  • the thin slab strand 1 occurs with a thickness of 30 to 100 mm, preferably 40 to 70 mm from the casting roll device 13.
  • the Thickness reduction in casting rolling is at least 10%. preferably at least 30%.
  • the strand then arrives in a descaling device 19 which is preferably designed as a hydromechanical descaling.
  • Descaling has the thin slab strand 1 a temperature in the range of 1150 up to 900 ° C.
  • the thin slab strand 1 becomes one of the Descaling device 19 immediately downstream hot rolling device 15 supplied, in which a reduction in thickness of the thin slab strand 1 by at least 50 % to an intermediate band of maximum 20 mm, preferably 10 to 20 mm in thickness he follows.
  • the expediently two or three stands or else a reversing rolling mill it is normally recommended to switch on a separation unit, e.g. in Form a band scissors 17 around the intermediate band generated in the already mentioned To split part lengths.
  • the hot-rolled intermediate strip is according to the invention accelerated cooled down to a temperature in the range of 850 to 600 ° C.
  • the each Cooling temperature to be chosen suitably depends on the chemical one Composition of the steel used and according to the target Structure composition and according to the mechanical-technological to be achieved Properties in the finished belt.
  • the cooling takes place in a first cooling device 18 instead of the tape shears 17 directly in the diagram shown connected.
  • the roll stands are operated so that per Roll pass a reduction in the strip thickness by at least 25%. That the The finished strip leaving the rolling device has a maximum thickness of 2 mm, preferably a thickness of 0.5 to 1.5 mm.
  • the rolling device 24 (not shown) cooling devices e.g. in the form of Provide spray cooling that removes excess heat in a controlled manner.
  • the actual temperature of the steel strip in the rolling device 24 is by (not shown) Temperature sensors monitored. That emerging from the rolling device 24 Steel strip is accelerated in a second cooling device 25 immediately thereafter cooled down to a temperature of at most 100 ° C.
  • the accelerated Cooling is expediently carried out at a cooling rate in the range from 10 to 25 ° C / s.
  • the finished strip can be passed through a liquid cooling bath become.
  • spray cooling devices can also be used in a manner known per se Course of the roller table with the smallest possible roller spacing of less than 250 mm Find use.
  • the finished tape produced in this way should be used Removal can be wound up in the form of coils. There is a for this in the system diagram corresponding winding device 26 is provided.
  • Forming intermediate band coils has the advantage that one hand Intermediate material buffer is created, which makes the operation of the Permits rolling devices, and on the other hand the one for maintaining the temperature such a buffer material required compensation furnace 21 only a comparison small area.
  • the production route according to the invention leads to a particularly fine-grained one Microstructure formation compared to the result according to the method described in EP 0 541 574 B1 known method is clearly cheaper. It happens in the known method by reheating to 1100 ° C before the second hot rolling into one significant grain coarsening, which in the method according to the invention because of selected temperature range of 850 to 600 ° C is excluded. Another The difference in grain size formation comes from the different Finished rolling. In the method according to the invention takes place during the isothermal rolling, which is at the recrystallization threshold Temperatures occur at the prescribed overall degree of deformation of clearly over 90% another dynamic grain refinement with simultaneous strength and Toughness increase instead.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Steel (AREA)
  • Continuous Casting (AREA)

Claims (25)

  1. Procédé pour fabriquer un feuillard d'acier ayant des propriétés de laminage à froid, comprenant les étapes suivantes se déroulant l'une après l'autre dans le temps :
    a) à partir d'une matière en fusion d'acier, il est fabriqué, par coulée continue, une barre de brame mince ayant une épaisseur de 30-100 mm (épaisseur de solidification), un laminage de coulée, avec noyau liquide de la barre de coulée, étant effectué pour une réduction de l'épaisseur de la barre de coulée d'au moins 10% après la sortie de la barre de coulée de la coque de l'installation de coulée continue,
    b) la barre de brame mince fabriquée selon l'étape a) est décalaminée,
    c) la barre de brame mince décalaminée est traitée à des températures dans la plage de 1150-900 °C par laminage à chaud avec une réduction d'épaisseur d'au moins 50% en un feuillard intermédiaire ayant une épaisseur maximale de 20 mm,
    caractérisé par les autres étapes suivantes :
    d) après le laminage à chaud, il est effectué un refroidissement accéléré du feuillard intermédiaire à une température dans la plage de 850-600 °C,
    e) le feuillard intermédiaire refroidi est laminé par laminage isotherme à 850-600 °C dans un train finisseur, ayant au moins trois cages, en feuillards ayant une épaisseur maximale de 2 mm, une réduction de l'épaisseur de feuillard d'au moins 25% ayant lieu par passe de laminage,
    f) enfin, le feuillard d'acier laminé de façon isotherme est refroidi de façon accélérée à une température d'au plus 100 °C et avantageusement enroulé en bobine comme feuillard fini.
  2. Procédé selon la revendication 1,
    caractérisé en ce que la barre de brame mince est engendrée avec une épaisseur de solidification de 40-70 mm.
  3. Procédé selon une des revendications 1 ou 2,
    caractérisé en ce que la réduction de la barre de brame mince lors du laminage de coulée vaut au moins 20%, en particulier 30%.
  4. Procédé selon une des revendications 1 à 3,
    caractérisé en ce que la barre de brame mince est maintenue à température avant le laminage à chaud dans un four compensateur.
  5. Procédé selon une des revendications 1 à 4,
    caractérisé en ce que le feuillard intermédiaire est engendré avec une épaisseur de 10-20 mm.
  6. Procédé selon une des revendications 1 à 5,
    caractérisé en ce que le feuillard intermédiaire est subdivisé après l'étape d) en longueurs partielles et est enroulé en bobines.
  7. Procédé selon une des revendications 1 à 6,
    caractérisé en ce que le feuillard intermédiaire refroidi dans l'étape d) est maintenu dans un four compensateur avant le laminage isotherme à la température de refroidissement.
  8. Procédé selon une des revendications 1 à 7,
    caractérisé en ce que le laminage isotherme est effectué en quatre ou cinq passes.
  9. Procédé selon une des revendications 1 à 8,
    caractérisé en ce que le feuillard d'acier est laminé de façon isotherme à une épaisseur de 0,5-1,5 mm.
  10. Procédé selon une des revendications 1 à 9,
    caractérisé en ce que le refroidissement final du feuillard d'acier est effectué à une vitesse de refroidissement dans la plage de 10-25 °C/s.
  11. Procédé selon une des revendications 1 à 10,
    caractérisé en ce que le feuillard intermédiaire est décalaminé encore une fois directement avant le laminage isotherme.
  12. Procédé selon une des revendications 1 à 11,
    caractérisé en ce que le décalaminage est effectué à chaque fois par une voie hydromécanique.
  13. Procédé selon une des revendications 1 à 12,
    caractérisé en ce que la température du feuillard intermédiaire entre les passes individuelles de laminage, pour le laminage isotherme, est réglée par refroidissement, en particulier par refroidissement par projection.
  14. Procédé selon une des revendications 1 à 13,
    caractérisé en ce que, dans l'étape a), une matière en fusion d'un acier ayant une qualité d'emboutissage profond est utilisée.
  15. Installation pour la mise en oeuvre de ce procédé selon la revendication 1, comportant :
    un dispositif de coulée continue pour engendrer des brames minces (1),
    un dispositif de laminage de coulée (13) agencé directement derrière la coquille (12) du dispositif de coulée continue,
    un dispositif de décalaminage (19) agencé derrière le dispositif de laminage de coulée (13), et
    un dispositif de laminage à chaud (15) agencé de façon raccordée au dispositif de décalaminage (19), dispositif (15) qui est constitué d'au moins deux cages ou d'une cage réversible,
    caractérisée en ce que :
    derrière le dispositif de laminage à chaud (15), il est agencé un premier dispositif de refroidissement (18) pour le refroidissement accéléré du feuillard intermédiaire engendré dans le dispositif de laminage à chaud (15),
    derrière le premier dispositif de refroidissement (18), il est agencé un dispositif de laminage (24) pour le laminage isotherme, ayant au moins trois cages de laminoir, et
    directement derrière le dispositif de laminage (24), il est raccordé un second dispositif de refroidissement (25) pour le refroidissement accéléré du feuillard d'acier engendré.
  16. Installation selon la revendication 15,
    caractérisée en ce que le dispositif de décalaminage (19) est réalisé comme dispositif de décalaminage hydromécanique.
  17. Installation selon une des revendications 15 ou 16,
    caractérisée en ce qu'un four compensateur est agencé entre le dispositif de laminage de coulée (13) et le dispositif de laminage à chaud (15).
  18. Installation selon une des revendications 15 à 17,
    caractérisée en ce que, derrière le dispositif de laminage à chaud (15), il est agencé un appareil de coupe (cisaille 17) pour subdiviser le feuillard intermédiaire laminé à chaud en longueurs partielles.
  19. Installation selon la revendication 18,
    caractérisée en ce que, derrière le premier dispositif de refroidissement (18), il est agencé un dispositif d'enroulement (20) et un dispositif de déroulement (22) pour des bobines de feuillard intermédiaire.
  20. Installation selon une des revendications 18 ou 19,
    caractérisée en ce que, entre le premier dispositif de refroidissement (18) et le dispositif de laminage isotherme (24), en particulier entre le dispositif d'enroulement (20) et le dispositif de déroulement (22), il est agencé un appareil de chauffage (four compensateur 21) pour maintenir en température les longueurs partielles du feuillard intermédiaire.
  21. Installation selon une des revendications 15 à 20,
    caractérisée en ce qu'un dispositif de décalaminage (23) est agencé directement avant le dispositif de laminage isotherme (24).
  22. Installation selon une des revendications 15 à 21,
    caractérisée en ce que le dispositif de laminage à chaud (15) comporte trois cages.
  23. Installation selon une des revendications 15 à 22,
    caractérisée en ce que le dispositif de laminage isotherme (24) comporte quatre ou cinq cages.
  24. Installation selon une des revendications 15 à 23,
    caractérisée en ce que, derrière le second dispositif de refroidissement (25), il est agencé un dispositif de bobinage (26) pour enrouler le feuillard fini.
  25. Installation selon une des revendications 15 à 24,
    caractérisée en ce que des dispositifs de refroidissement, en particulier des dispositifs de refroidissement par projection, sont prévus entre les cages de laminoir du dispositif de laminage (24) pour le laminage isotherme pour le réglage en température.
EP95932632A 1994-10-20 1995-09-21 Procede et dispositif de production d'une feuille d'acier presentant les proprietes d'un produit lamine a froid Expired - Lifetime EP0804300B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE4438783 1994-10-20
DE4438783 1994-10-20
DE19520832A DE19520832A1 (de) 1994-10-20 1995-05-31 Verfahren und Vorrichtung zur Herstellung von Stahlband mit Kaltwalzeigenschaften
DE19520832 1995-05-31
PCT/DE1995/001347 WO1996012573A1 (fr) 1994-10-20 1995-09-21 Procede et dispositif de production d'une feuille d'acier presentant les proprietes d'un produit lamine a froid

Publications (2)

Publication Number Publication Date
EP0804300A1 EP0804300A1 (fr) 1997-11-05
EP0804300B1 true EP0804300B1 (fr) 1999-05-06

Family

ID=25941531

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JP (1) JP3807628B2 (fr)
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AU (1) AU686014B2 (fr)
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AT511657A1 (de) * 2011-06-24 2013-01-15 Siemens Vai Metals Tech Gmbh Inbetriebnahme einer fertigwalzstrasse in einer giess-walz-verbundanlage
AT511674A1 (de) * 2011-06-24 2013-01-15 Siemens Vai Metals Tech Gmbh Inbetriebnahme einer fertigwalzstrasse in einer giess-walz-verbundanlage
CN111589865A (zh) * 2020-05-26 2020-08-28 中冶赛迪工程技术股份有限公司 一种低屈强比薄带钢连铸连轧生产线及生产工艺

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GB9802443D0 (en) * 1998-02-05 1998-04-01 Kvaerner Metals Cont Casting Method and apparatus for the manufacture of light gauge steel strip
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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
DE10325955A1 (de) * 2003-06-07 2004-12-23 Sms Demag Ag Verfahren und Anlage zum Erzeugen von Stahlprodukten mit bester Oberflächenqualität
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CN103894572B (zh) * 2014-04-10 2016-09-07 北京科技大学 一种连铸坯预处理方法
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Publication number Priority date Publication date Assignee Title
AT511657A1 (de) * 2011-06-24 2013-01-15 Siemens Vai Metals Tech Gmbh Inbetriebnahme einer fertigwalzstrasse in einer giess-walz-verbundanlage
AT511674A1 (de) * 2011-06-24 2013-01-15 Siemens Vai Metals Tech Gmbh Inbetriebnahme einer fertigwalzstrasse in einer giess-walz-verbundanlage
AT511674B1 (de) * 2011-06-24 2013-04-15 Siemens Vai Metals Tech Gmbh Inbetriebnahme einer fertigwalzstrasse in einer giess-walz-verbundanlage
AT511657B1 (de) * 2011-06-24 2013-04-15 Siemens Vai Metals Tech Gmbh Inbetriebnahme einer fertigwalzstrasse in einer giess-walz-verbundanlage
CN111589865A (zh) * 2020-05-26 2020-08-28 中冶赛迪工程技术股份有限公司 一种低屈强比薄带钢连铸连轧生产线及生产工艺

Also Published As

Publication number Publication date
ATE179640T1 (de) 1999-05-15
JP3807628B2 (ja) 2006-08-09
JPH11511696A (ja) 1999-10-12
US5832985A (en) 1998-11-10
CA2202616A1 (fr) 1996-05-02
AU686014B2 (en) 1998-01-29
AU3561395A (en) 1996-05-15
CN1161009A (zh) 1997-10-01
EP0804300A1 (fr) 1997-11-05
WO1996012573A1 (fr) 1996-05-02
CN1062196C (zh) 2001-02-21
CA2202616C (fr) 2001-01-23

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