EP3341142A1 - Installation fonctionnant suivant le concept csp (compact strip production) et procédé de fonctionnement d'une telle installation - Google Patents

Installation fonctionnant suivant le concept csp (compact strip production) et procédé de fonctionnement d'une telle installation

Info

Publication number
EP3341142A1
EP3341142A1 EP16756979.7A EP16756979A EP3341142A1 EP 3341142 A1 EP3341142 A1 EP 3341142A1 EP 16756979 A EP16756979 A EP 16756979A EP 3341142 A1 EP3341142 A1 EP 3341142A1
Authority
EP
European Patent Office
Prior art keywords
rolling
semi
thickness
continuous operation
batch mode
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.)
Granted
Application number
EP16756979.7A
Other languages
German (de)
English (en)
Other versions
EP3341142B1 (fr
Inventor
Dieter Rosenthal
Christoph Klein
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 Group GmbH
Original Assignee
SMS Group GmbH
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
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Application filed by SMS Group GmbH filed Critical SMS Group GmbH
Publication of EP3341142A1 publication Critical patent/EP3341142A1/fr
Application granted granted Critical
Publication of EP3341142B1 publication Critical patent/EP3341142B1/fr
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Links

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
    • B21B1/466—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
    • B21B2201/08—Batch rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/004—Heating the product

Definitions

  • the invention relates to a system and a method for producing
  • Metal bands preferably steel bands, of a thickness of 0.8 to 3.0 mm, of pre-potted thin slabs with a thickness of 40 - 140 mm, in batch or semi-continuous operation.
  • the invention further relates to a method for operating such a system.
  • CSP-® stands for “Compact Strip Production.”
  • CSP-® stands for “Compact Strip Production.”
  • the liquid steel is cast into thin slabs, which after a
  • a hot strip produced on a CSP ® plant is characterized by a high quality, it has a uniform structure and homogeneous mechanical-physical properties over the entire strip length and width. The band geometry lies within the narrowest tolerances.
  • the invention relates to a system which can be operated both in batch mode and in semi-continuous operation, in particular can be switched between these modes.
  • the expert calls such a procedure of the system in which the emerging from the casting thin slab is shortened depending on the thickness and even before entering the downstream tunnel kiln to such a length that after leaving the rolling device in the downstream coiler a Coil can be wound with a predetermined length and a predetermined weight.
  • a so-called semi-continuous operation of the expert calls a driving style of such a system in which the thin slab is cut after leaving the casting machine so that a so-called Jumbobramme arises whose length usually corresponds to an integer multiple of a slab from the batch mode. From such a Jumbobramme, which after leaving the
  • Casting machine is also introduced into the tunnel kiln, is then in
  • Thin slabs have long been known to the skilled person for many years. The same applies to the CSP ® system concept.
  • EP 2 195 124 B1 describes a compact and flexible CSP® plant for continuous, semi-continuous and batch operation.
  • the system described here is designed so that it can be operated in all three possible modes for such types of plant, usually for batching two parallel casting machines are provided in front of the rolling device and a pair of scissors between the caster and the rolling device is arranged to the
  • WO 2011/141790 A2 describes a method and an installation for the production of flat rolled products, which also implements the CSP plant concept. Under certain conditions, switching between all three operating modes mentioned above will also be effected in this system.
  • Rolling mills in which the roll nips, if necessary provided with a bias, are completely closed in order, in the event of operational suspension of the respective rolling mills, under the influence of the rolling forces acting on the metal strip
  • disturbances can occur.
  • the initiation of a semi-continuous operation especially in higher-strength grades leads to disruption of the rolling operation, for example due to a not easily introducing the strip beginnings in the nip.
  • the semi-continuous operation can be used when the rolling device is warm and a final thickness in the target area of the minimum final thickness has already been reached in advance in the batch mode.
  • the first final thickness in the semi-continuous operation preferably corresponds to the final final thickness in batch mode, wherein by means of adjusting at least the roll gap of a roll stand, preferably a plurality of roll nips of the rolling stands of the rolling device, by means of so-called "flying-gauge-change" then the minimum Final thickness set and achieved in the thin strip.
  • the separation of the band takes place in coils with a behind the
  • Roller device arranged flying shears, which is arranged in front of the reel device, in particular the here commonly used underfloor reels.
  • the invention thus provides a method and a system with a correspondingly programmed control device, which enables the switching from batch mode to semi-continuous mode, in which a part of a pre-potted Jumbobramme, preferably at least half of the Jumbobramme, with the minimum end thickness can be produced without the need to bring the hot strip to operating temperature under the action of external energy; Rather, the setting of the operating temperature of the system according to the invention, in particular of their rolling, in batch mode or in semi-continuous operation during the production of metal strips by selecting the correct rolling speed.
  • the system of the invention is thus able to produce thin strips of a variety of steel grades both in batch mode and semi-continuous operation and this produce particularly low thicknesses energetically favorable.
  • the operating mode Batch mode is in principle for larger end thicknesses and the mode Semi-continuous mode for thinner or thinnest Thicknesses selected, the plant has a total capacity of about 4 million.
  • the rolling device has two groups of a plurality of rolling stands, in particular a first group with two rolling stands and a second group arranged downstream of the first group with up to five rolling stands. Between these groups of rolling stands, an induction heating can be arranged, which preferably consists of the
  • Rolling device and the entire rolling line is provided extendable. While induction heating is not used regularly in batch mode, induction heating can be used in semi-continuous operation, in particular in the case of induction heating
  • Rolling device used to keep the structure of the hot strip throughout the rolling process in the austenitic phase region.
  • Roller device stands.
  • the switching is preferably carried out after rolling a plurality, preferably of more than two, more preferably of between two to two and a half, individual slabs.
  • a standard size of z. B. has five individual slab lengths, produces at least half of the coils produced from the Jumbobramme in the desired minimum final thickness in semi-continuous operation.
  • a preferably flying scissors is arranged, with which the thin strip produced can be cut to the desired length for the coil.
  • Rolling device dimensioned so that it corresponds to at least the length of a jumbo booms for performing the semi-endless operation.
  • the length of a jumbobramme will correspond to a multiple of the length of a single slab, the length of the furnace, preferably of the tunnel kiln, being dimensioned such that a jumbobramme of five times the length of a long single slab
  • Leave casting machines with a thickness of 40 to 140 mm This provides a process that provides the greatest possible mix of products, both in terms of final thickness achievable and steel grades to be processed.
  • steel strip of the grade "low carbon steel” preferably steel strip with a thickness of 0.8 to 1, 2 mm in semi-continuous operation and steel strip with a thickness greater than 1, 2 mm in batch mode ,
  • the plant manufactures steel strip grade "medium-carbon steel”, preferably steel strip with a thickness of 1, 4 to 1, 8 mm in semi-continuous operation and steel strip with thickness greater than 1, 8 mm in batch mode is also preferred.
  • the plant manufactures steel strip of the grade "high carbon steel”, preferably steel strip with a thickness of 1, 4 to 2.0 mm in semi-continuous operation and steel strip with thicknesses greater than 2.0 mm is also preferred.
  • the plant manufactures steel strip of the "high-strength low-alloyed steel” grade preferably steel strip with a thickness of 1.4 to 2.0 mm in semi-continuous operation and with thicknesses greater than 2.0 mm in batch mode.
  • FIG. 1 is a schematic representation of a CSP ® plant according to the invention.
  • Figure 2 is a tabular listing of the producible strip thicknesses
  • Figure 1 shows a schematic representation of a CSP ® plant according to the invention, which is able to cast over the casting machine into thin slabs
  • At least the length of the upper tunnel kiln 3 is dimensioned such that at least one jumbobramme for carrying out a semi-continuous operation can be completely accommodated in the tunnel kiln 3.
  • the lower tunnel kiln 3 immediately downstream of the parallel casting machine 1 may also have this length, but must be at least equal to the length of a single slab for batch operation to be able to receive and heat this single slab when performing the batch operation.
  • the second tunnel kiln 3 can also serve as a buffer for the upper casting machine tunnel kiln arrangement 1, 3 via a suitable switching device between the tunnel kilns 3.
  • a scale scrubber 4 for removing surface scale is provided downstream of the upper tunnel kiln 3 and in front of the first roll stand group 5, thereby positively promoting rolling in the first group of rolling stands 5
  • Roll stand group 5 and the second roll stand group 8 is also a Induction heating 7 is arranged, which can preferably be removed from the rolling line, if the induction heater 7 is not required for carrying out the rolling process. This is regularly the case when the system according to the invention is run in batch mode, or when in semi-continuous operation bands with comparatively large thicknesses of 2 to 2.5 mm are to be produced.
  • a laminar cooling section 9 is arranged for setting the desired reeling temperature for the thin strip.
  • This laminar cooling section 9 is preferably provided with means for controllably increased cooling of the thin strip, usually liquid nozzles or nozzles capable of applying a mixture of air and a cooling liquid to the thin strip.
  • FIG. 2 shows, by way of example, a tabular listing of the steel grades that can be machined on the system according to the invention and in the method according to the invention and the strip thicknesses to be produced via the system, wherein it is also indicated which steel grades and which strip thicknesses in the semi-endless-roll mode and the batch mode operating mode can be produced.
  • "low-carbon steel" steel grades with final thicknesses greater than 1.4 mm can be used in batch mode and in the
  • Thickness range 0.8 mm to 1, 4 mm are produced in semi-continuous operation.
  • the steel grade "advanced high-strength steel” is again produced in the thickness range 1, 4 to 2.5 mm in semi-continuous operation.

Landscapes

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

Abstract

L'invention concerne une installation et un procédé de fabrication de bandes métalliques, de préférence de bandes d'acier, d'une épaisseur de 0,8 à 25 mm en fonctionnement par lots ou semi-continu, comportant au moins une machine de coulée (1) pour la coulée de brames minces et un dispositif de laminage (5, 8) disposé en aval de l'au moins une machine de coulée (1) et présentant plusieurs cages de laminoir pour le laminage des brames minces de manière à former des bandes métalliques d'épaisseur prédéfinie, ainsi qu'au moins un dispositif de bobinage (11) disposé en aval du dispositif de laminage (5, 6), une cisaille (6) et un four (3) étant disposés entre l'au moins une machine de coulée (1) et le dispositif de laminage (5, 8), le dispositif de laminage comprenant un dispositif de modification de l'emprise d'au moins une cage de laminoir pendant l'opération de laminage et un dispositif de commande étant prévu, lequel commande l'installation de telle sorte qu'une commutation du fonctionnement par lots au fonctionnement semi-continu ou inversement s'effectue en fonction de la qualité du métal, de préférence la qualité de l'acier, et de l'épaisseur souhaitée de la bande métallique à fabriquer, et que la commutation du fonctionnement par lots au fonctionnement semi-continu peut s'effectuer au cours de l'opération de laminage au moyen du dispositif de laminage.
EP16756979.7A 2015-08-28 2016-08-12 Procédé de fonctionnement d'une installation fonctionnant suivant le concept csp (compact strip production) Active EP3341142B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015216512.4A DE102015216512A1 (de) 2015-08-28 2015-08-28 Anlage nach dem CSP-Konzept sowie Verfahren zum Betreiben einer solchen Anlage
PCT/EP2016/069220 WO2017036769A1 (fr) 2015-08-28 2016-08-12 Installation fonctionnant suivant le concept csp (compact strip production) et procédé de fonctionnement d'une telle installation

Publications (2)

Publication Number Publication Date
EP3341142A1 true EP3341142A1 (fr) 2018-07-04
EP3341142B1 EP3341142B1 (fr) 2020-01-15

Family

ID=56800272

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16756979.7A Active EP3341142B1 (fr) 2015-08-28 2016-08-12 Procédé de fonctionnement d'une installation fonctionnant suivant le concept csp (compact strip production)

Country Status (4)

Country Link
EP (1) EP3341142B1 (fr)
DE (1) DE102015216512A1 (fr)
TW (1) TWI615210B (fr)
WO (1) WO2017036769A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110202106A (zh) * 2019-06-04 2019-09-06 甘肃酒钢集团宏兴钢铁股份有限公司 控制csp薄板连铸机生产中碳合金钢板坯表面裂纹的方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108405616B (zh) * 2018-03-07 2021-02-12 黑龙江工程学院 一种超声波辅助镁合金材料连铸连轧的制备方法及设备
DE102019207459A1 (de) * 2018-05-23 2019-11-28 Sms Group Gmbh Gieß-Walzanlage für den Batch- und Endlosbetrieb
CN109731914B (zh) * 2019-02-21 2020-07-24 江苏沙钢集团有限公司 一种改善双辊连铸轧带表面质量的轧制方法
IT202000000316A1 (it) 2020-01-10 2021-07-10 Danieli Off Mecc Metodo ed apparato di produzione di prodotti metallici piani

Family Cites Families (14)

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Publication number Priority date Publication date Assignee Title
GB2327375A (en) 1997-07-21 1999-01-27 Kvaerner Metals Cont Casting Continuous metal manufacturing method and apparatus therefore
CN1972764B (zh) 2005-04-07 2011-12-07 乔瓦尼·阿尔韦迪 连续铸造与轧制间非连续金属带材及板材制造工艺与设备
DE102006054932A1 (de) 2005-12-16 2007-09-13 Sms Demag Ag Verfahren und Vorrichtung zum Herstellen eines Metallbandes durch Gießwalzen
DE102006005635A1 (de) * 2006-02-08 2007-08-09 Sms Demag Ag Rollenherdofen zum Aufheizen und/oder Temperaturausgleichen von Stranggiessprodukten aus Stahl oder Stahllegierung und dessen Anordnung vor einer Warmband-Fertigwalzstrasse
DE102008029581A1 (de) 2007-07-21 2009-01-22 Sms Demag Ag Verfahren und Vorrichtung zum Herstellen von Bändern aus Silizum-Stahl oder Mehrphasenstahl
DE102008020412A1 (de) 2007-08-24 2009-02-26 Sms Demag Ag Verfahren und Vorrichtung zum Herstellen eines Metallbandes durch Gießwalzen
DE102008003222A1 (de) 2007-09-13 2009-03-19 Sms Demag Ag Kompakte flexible CSP-Anlage für Endlos-, Semi-Endlos- und Batchbetrieb
KR101331324B1 (ko) 2008-10-30 2013-11-20 지멘스 악티엔게젤샤프트 다중 스탠드 압연 트레인을 통과하는 압연 재료의 배출 두께 조정 방법, 개회로 제어 장치 및/또는 폐회로 제어 장치 및 압연 설비
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
IT1400002B1 (it) 2010-05-10 2013-05-09 Danieli Off Mecc Procedimento ed impianto per la produzione di prodotti laminati piani
EP2441540A1 (fr) * 2010-10-12 2012-04-18 Siemens VAI Metals Technologies GmbH Procédé et installation de production à efficience énergétique d'une bande chaude en acier
UA115172C2 (uk) 2013-03-08 2017-09-25 Смс Груп Гмбх Спосіб виготовлення металевої штаби за допомогою безперервного розливу і прокатки
DE102014213537A1 (de) * 2013-12-05 2015-06-11 Sms Siemag Ag Verfahren und Vorrichtung zur Herstellung eines metallischen Bandes im Gießwalzverfahren
WO2015092770A1 (fr) 2013-12-20 2015-06-25 Novelis do Brasil Ltda. Changement dynamique de réduction (dsr) pour réguler la température dans des laminoirs en tandem

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110202106A (zh) * 2019-06-04 2019-09-06 甘肃酒钢集团宏兴钢铁股份有限公司 控制csp薄板连铸机生产中碳合金钢板坯表面裂纹的方法

Also Published As

Publication number Publication date
EP3341142B1 (fr) 2020-01-15
DE102015216512A1 (de) 2017-03-02
WO2017036769A1 (fr) 2017-03-09
TWI615210B (zh) 2018-02-21
TW201711766A (zh) 2017-04-01

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