EP3089832B1 - Procédé et dispositif de fabrication d'une bande métallique par le procédé de laminage de coulée continue - Google Patents

Procédé et dispositif de fabrication d'une bande métallique par le procédé de laminage de coulée continue Download PDF

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Publication number
EP3089832B1
EP3089832B1 EP14824010.4A EP14824010A EP3089832B1 EP 3089832 B1 EP3089832 B1 EP 3089832B1 EP 14824010 A EP14824010 A EP 14824010A EP 3089832 B1 EP3089832 B1 EP 3089832B1
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EP
European Patent Office
Prior art keywords
strip
separating device
conveying direction
driver
conveying
Prior art date
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Active
Application number
EP14824010.4A
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German (de)
English (en)
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EP3089832A1 (fr
Inventor
Jürgen Merz
Heinz-Adolf MÜLLER
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SMS Group GmbH
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SMS Group GmbH
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Publication of EP3089832A1 publication Critical patent/EP3089832A1/fr
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Publication of EP3089832B1 publication Critical patent/EP3089832B1/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
    • B21B1/22—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
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/26—Special arrangements with regard to simultaneous or subsequent treatment of the material
    • B21C47/267—Scrap treatment
    • 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
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/006—Pinch roll sets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B41/00—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters
    • B21B41/08—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters without overall change in the general direction of movement of the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
    • B21C47/3433—Feeding or guiding devices not specially adapted to a particular type of apparatus for guiding the leading end of the material, e.g. from or to a coiler
    • B21C47/3441—Diverting the leading end, e.g. from main flow to a coiling device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/126—Accessories for subsequent treating or working cast stock in situ for cutting
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B15/0007—Cutting or shearing the product
    • B21B2015/0014—Cutting or shearing the product transversely to the rolling direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands

Definitions

  • the invention relates to a method for producing a metallic strip in a continuous casting roll process, in which first a slab is poured in a casting machine and fed to a downstream in the conveying direction of the strip finishing mill and rolled here. Furthermore, the invention relates to a device for carrying out the method.
  • a generic method or a generic device are off KR 20130053111 A known.
  • the present invention is accordingly used in cast-rolling plants which produce a finished strip from liquid metal in continuous operation. For such systems, a strategy is proposed which can be used if an interruption of the rolling operation in the finishing mill takes place intentionally or unintentionally.
  • Known casting mills convert liquid steel in a compact plant to hot strip. First, slabs of endless length are poured.
  • slabs are cut by means of scissors, which correspond in their dimensions to a desired hot-rolled size.
  • furnaces often designed as a roller hearth furnace, the slabs are conditioned in temperature. Subsequently, the slabs are individually fed to a rolling train and rolled. Subsequently, the strips are cooled in a cooling section and reeled. The leagues leave the rolling line for further processing.
  • the slabs are cut so that two or more bundles are produced from this slab can.
  • flying scissors are additionally arranged, which cuts the long hot strip, so that the desired waist size is achieved. This process reduces the number of threading and unthreading processes that are critical to rolling, allowing thinner hot strips to be produced more safely.
  • Disturbances can basically occur in all sub-aggregates, ie. H. in the area of the reel, the flying shear (s), the finishing train, the roller hearth furnace, etc.
  • torn ligament between the last two scaffolding so within a very short time leads to a jam between these scaffolding, which can only be eliminated by later manual activities. This requires time-consuming work with subsequent inspection and, if necessary, repair of the plant components.
  • the helmsman or the automation system stops rolling in the event of a fault.
  • the scaffolds are generally driven in the shortest possible time, all drives are stopped and the strand comes to a standstill. Since the slab is not divided up to the mold, there are cases where inevitably the casting machine comes to a standstill.
  • This unit is particularly critical to see. If the standstill takes too long, the steel solidifies in the mold and can only be removed very expensive or only with damage to the mold. An uncontrolled raising of the mold and the strand guide would usually lead to a strand breakthrough, so that the liquid steel pours over the aggregate and causes considerable damage. In particular, the strand guide rollers are sensitive to thermal overload during prolonged standstill.
  • the EP 2 259 886 B1 proposes in this regard to introduce a cut in the band, to bend the band foot which protrudes in the conveying direction upwards and to chop the following band.
  • this requires conceptually that the following strip material is still in motion.
  • Other or similar solutions as well as special aspects of the division of the slab or the band are in the EP 0 625 383 B1 , in the DE 198 56 767 A1 , in the DE 42 20 424 A1 , in the JP 0122 4102 A , in the JP 0527 7539 A , in the JP 6315 7750 A and in the JP 2001 276 910 A addressed.
  • the state of the art are still the KR 2013 0053111 A and the KR 2013 0053110 A to name a tape storage behind a separator for the tape.
  • the operation should not be interrupted as much as possible even during a planned roll change.
  • the strand is separated, the severed band is rolled out. Subsequently, slices are cut from the strand and transported away by means of a discharge device as scrap.
  • the scrap stacked behind the scissors can not necessarily be returned directly into the oven.
  • the scrap must then rather be divided in an intermediate step.
  • the scissors can not chop backwards. Furthermore, no scrap chute is present.
  • the invention is based on the object, the production line after the intended (for example, due to a roll change) or unintentional occurrence of production stoppage in the finishing mill safely, quickly and economically and preferably partially or Fully automatically return to the normal operating state.
  • Steel emerging from the mold and further out of the casting machine or the slabs or the strip cast therefrom should be removed as quickly as possible in order to minimize damage and downtimes.
  • the material removed from the plant ie the scrap
  • the material removed from the plant ie the scrap
  • the material removed from the plant ie the scrap
  • the material removed from the plant ie the scrap
  • the material removed from the plant ie the scrap
  • the material removed from the plant ie the scrap
  • the material removed from the plant ie the scrap
  • the material removed from the plant ie the scrap
  • the material removed from the plant ie the scrap
  • the material removed from the plant ie the scrap
  • the material removed from the plant ie the scrap
  • the material removed from the plant i
  • the parts which are produced in steps c) and d) are preferably removed into a collecting space.
  • step c) tape sections with a length in the conveying direction between 0.1 m and 5 m can be cut.
  • the apparatus for producing a metallic strip in a continuous casting roll process comprising a casting machine and a finished rolling mill downstream in the conveying direction of the strip, is characterized according to the invention in that a separating device is arranged between the casting machine and the finish rolling mill and that following in the conveying direction of the separating device a tape storage is arranged for receiving a tape portion, wherein in the conveying direction behind the separating device and before the tape storage, a driver is arranged, which is designed for conveying the tape in the tape storage, and wherein the driver is also designed to convey the tape back to the separating device ,
  • the separating device is preferably a drum shears. But it is also possible to use a pendulum scissors or a movable scissors.
  • a collecting space for strip parts is preferably arranged below the separating device.
  • a scrap chute may be arranged between the separating device and the collecting space.
  • a further driver may be arranged.
  • In the conveying direction in front of the separating device may continue to be arranged a furnace.
  • the concept can be used in all plant concepts with any combination of casting machine, roughing mill, furnace, intermediate rolling mill and finishing mill.
  • the invention provides that, in particular, a chopper scissors in combination with a tape storage is used.
  • the strip arriving from the casting machine is temporarily stored in the strip store.
  • a drum shears severed the tape.
  • a driver behind the separator promotes the tape in the tape storage. This creates a short gap.
  • the separating device divides the incoming strip into scrap pieces, which preferably slide over a scrap chute into a scrap disposal area.
  • a separator behind the caster separates the strand.
  • the remaining belt is accelerated and the separator (drum shears) parts it.
  • the strand which is now being poured, is cut into plates with the separating device behind the casting machine and pushed off by means of a discharge device.
  • the jam in the finishing train is removed, for example, it is disposed of manually.
  • the strip between the finishing train and the separating device drum shears
  • the strip between the finishing train and the separating device can then be moved backwards (ie against the conveying direction) from the tape storage by the separator and chopped by this.
  • the scrap pieces can be remelted directly.
  • the area between the drum shears and the finishing line can be cleared backwards.
  • the proposed construction is compact and can save energy.
  • the tape storage can also be used as Zugreglung.
  • a drum shears can dispose of the scrap quickly and efficiently.
  • Fig. 1 an example of a casting-rolling plant is sketched, which is designed as Voll-Konti-plant and which includes a casting machine 2 and a finish rolling mill 3 as central elements.
  • a roughing mill 12 is provided, to which - depending on the system concept - a furnace 11 (connecting roller table with heating function) connects.
  • Behind the furnace 11 follows the finished rolling mill 3.
  • Behind the finish rolling mill 3 is a cooling section 13 and a separator in the form of a flying shears 14.
  • the conveying direction F then at least one reel 15 and 16 follows.
  • a separator in the form of a pair of scissors 17 for the band 1 is arranged between the furnace 11 and the finished rolling mill 3 at a point 4.
  • the other pair of scissors (separating device) 14 behind the cooling section 13 and in front of the reels 15, 16 is arranged.
  • Fig. 1 is still a pair of scissors (separator) 17 to recognize, which is located behind the casting machine 2 and the furnace 11.
  • Fig. 2 is shown in more detail.
  • the in Fig. 2 shown plant part further shows that in the conveying direction F behind the separator 5, a tape storage 6 is arranged, which is indicated only schematically.
  • the tape 1 coming out of the oven 11 is conveyed by a driver 10.
  • the band 1 can be cut or cut through.
  • the separated tape 1 can then be conveyed into the tape storage 6.
  • the strip 1 is cut through at the position 4 by the separator 5. There is then a conveying of the part of the belt 1, which is located in the conveying direction F behind the separating device 5, in the tape storage 6, for which the driver 7 is used. After again cutting through or cutting through the strip 1 by means of the separating device 5, a chopping of the strip section can then be carried out, which follows from the casting machine 2.
  • the tape is in a conventional manner (see EP 2 259 886 B1 ) cut into parts, preferably with a defined length and discharged via a scrap chute 9 into a collecting space 8.
  • the band 1 located in the band memory 6 is counter to the conveying direction F by means of the driver 7 to the separator 5 fed back, shredded by means of the separator 5 and equally discharged into the collection chamber 8.
  • the proposed method can also be used in a deviating plant concept of a casting-rolling plant.

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

Claims (12)

  1. Procédé pour la fabrication d'une bande métallique (1) dans le procédé de coulée-laminage en continu, dans lequel on coule d'abord une brame dans une machine de coulée (2) et on l'achemine à un laminoir de finition (3) monté à la suite dans la direction de transport (F) de la bande (1) et on l'y soumet à un laminage, dans lequel, dans le cas d'une interruption de production planifiée ou non planifiée dans le laminoir de finition (3), on met en oeuvre les étapes suivantes dans lesquelles :
    a) on soumet la bande (1) à une découpe à un endroit (4) situé entre la machine de coulée (2) et le laminoir de finition (3) au moyen d'un mécanisme de séparation (5) ;
    b) on transporte le morceau de la bande (1) que l'on obtient après la découpe dans la direction de transport (F) dans un accumulateur de bande (6) au moyen d'un dispositif d'entraînement (7), le dispositif d'entraînement (7) étant disposé derrière le mécanisme de séparation (5) dans la direction de transport (F) ;
    c) on procède à une nouvelle découpe de la bande (1) au moyen du mécanisme de séparation (5) et on soumet le morceau de la bande (1) qui suit dans la direction de transport (F) au moyen du mécanisme de séparation (5) à une découpe fine pour obtenir des petits morceaux possédant de préférence une dimension longitudinale définie ;
    caractérisé en ce que
    le procédé présente l'étape supplémentaire dans laquelle :
    d) on soumet le morceau de bande accumulé à une découpe pour obtenir des petits morceaux possédant de préférence une dimension longitudinale définie, dans laguelle a lieu un transport dans le sens contraire à la direction de transport (F) de la bande (1) se trouvant dans l'accumulateur de bande (6) au moyen du dispositif d'entraînement (7) en direction du mécanisme de séparation (5) dans lequel a lieu la découpe fine du morceau de bande accumulé, au moyen du mécanisme de séparation (5).
  2. Procédé selon la revendication 1, caractérisé en ce que, à l'étape c), a lieu une évacuation des morceaux dans une chambre de récupération (8).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que, à l'étape d), a lieu une évacuation des morceaux dans une chambre de récupération (8).
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les étapes a) à d) de la revendication 1, sont mises en oeuvre dans cet ordre successif.
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que, à l'étape c) de la revendication 1, on procède à une découpe de morceaux de bande possédant une longueur dans la direction de transport (F) entre 0,1 m et 5 m.
  6. Dispositif pour la fabrication d'une bande métallique (1) dans le procédé de coulée-laminage en continu, comprenant une machine de coulée (2) et un laminoir de finition (3) monté à la suite dans la direction de transport (F) de la bande (1) pour la mise en oeuvre du procédé selon l'une quelconque des revendications 1 à 5, dans lequel un dispositif de séparation (5) est disposé entre la machine de coulée (2) et le laminoir de finition (3) ; dans lequel un accumulateur de bande (6) pour la réception d'un morceau de bande est disposé à la suite du mécanisme de séparation (5) dans la direction de transport (F) ; et dans lequel un dispositif d'entraînement (7) est disposé, dans la direction de transport (F), derrière le mécanisme de séparation (5) et devant l'accumulateur de bande (6), le dispositif d'entraînement (7) étant apte au transport de la bande (1) dans l'accumulateur de bande (6) ;
    caractérisé en ce que
    le dispositif d'entraînement (7) est également apte au transport de la bande (1) en arrière en direction du mécanisme de séparation (5).
  7. Dispositif selon la revendication 6, caractérisé en ce que le mécanisme de séparation (5) est une cisaille à tambour.
  8. Dispositif selon la revendication 6, caractérisé en ce que le mécanisme de séparation (5) est une cisaille à pendule ou une cisaille à guillotine.
  9. Dispositif selon l'une quelconque des revendications 6 à 8, caractérisé en ce qu'une chambre de récupération (8) pour des morceaux de bande est disposée en dessous du mécanisme de séparation (5).
  10. Dispositif selon la revendication 9, caractérisé en ce qu'une goulotte de débris (9) est disposée entre le mécanisme de séparation (5) et la chambre de récupération (8).
  11. Dispositif selon l'une quelconque des revendications 6 à 10, caractérisé en ce qu'un dispositif d'entraînement supplémentaire (10) est disposé dans la direction de transport (F) avant le mécanisme de séparation (5).
  12. Dispositif selon l'une quelconque des revendications 6 à 11, caractérisé en ce qu'un four (11) est disposé dans la direction de transport (F) avant le mécanisme de séparation (5).
EP14824010.4A 2014-01-03 2014-12-23 Procédé et dispositif de fabrication d'une bande métallique par le procédé de laminage de coulée continue Active EP3089832B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102014200021 2014-01-03
DE102014224231.2A DE102014224231A1 (de) 2014-01-03 2014-11-27 Verfahren und Vorrichtung zur Herstellung eines metallischen Bandes im kontinuierlichen Gießwalzverfahren
PCT/EP2014/079262 WO2015101577A1 (fr) 2014-01-03 2014-12-23 Procédé et dispositif de fabrication d'une bande métallique par le procédé de laminage de coulée continue

Publications (2)

Publication Number Publication Date
EP3089832A1 EP3089832A1 (fr) 2016-11-09
EP3089832B1 true EP3089832B1 (fr) 2017-10-11

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EP14824010.4A Active EP3089832B1 (fr) 2014-01-03 2014-12-23 Procédé et dispositif de fabrication d'une bande métallique par le procédé de laminage de coulée continue

Country Status (6)

Country Link
US (1) US9937539B2 (fr)
EP (1) EP3089832B1 (fr)
KR (1) KR101788081B1 (fr)
DE (1) DE102014224231A1 (fr)
RU (1) RU2640484C1 (fr)
WO (1) WO2015101577A1 (fr)

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JP2018518369A (ja) 2015-05-11 2018-07-12 エス・エム・エス・グループ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング 鋳造圧延方式において、金属的なストリップを製造するための方法
EP3974072B1 (fr) * 2020-09-24 2023-07-19 Primetals Technologies Austria GmbH Installation combinée de coulée et de laminage et procédé de fonctionnement de l'installation combinée de coulée et de laminage

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Publication number Publication date
EP3089832A1 (fr) 2016-11-09
KR20160098411A (ko) 2016-08-18
US20160325324A1 (en) 2016-11-10
DE102014224231A1 (de) 2015-07-09
KR101788081B1 (ko) 2017-11-15
RU2640484C1 (ru) 2018-01-09
US9937539B2 (en) 2018-04-10
WO2015101577A1 (fr) 2015-07-09

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