EP0980295A1 - Procede et dispositif de production de brames d'acier - Google Patents

Procede et dispositif de production de brames d'acier

Info

Publication number
EP0980295A1
EP0980295A1 EP98932038A EP98932038A EP0980295A1 EP 0980295 A1 EP0980295 A1 EP 0980295A1 EP 98932038 A EP98932038 A EP 98932038A EP 98932038 A EP98932038 A EP 98932038A EP 0980295 A1 EP0980295 A1 EP 0980295A1
Authority
EP
European Patent Office
Prior art keywords
width
strand
adjusting
actuating force
elements
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
EP98932038A
Other languages
German (de)
English (en)
Other versions
EP0980295B1 (fr
Inventor
Horst Von Wyl
Ingo Schubert
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
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 Mannesmann AG filed Critical Mannesmann AG
Publication of EP0980295A1 publication Critical patent/EP0980295A1/fr
Application granted granted Critical
Publication of EP0980295B1 publication Critical patent/EP0980295B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
    • 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
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/20—Controlling or regulating processes or operations for removing cast stock

Definitions

  • the invention relates to a method for producing slabs of steel, in which the strand leaves a mold with liquid melt enclosed by the strand shell and in a downstream strand guide the mouth width of guide rollers mounted in scaffolding is adjusted by adjusting elements connecting the lower and upper frame, and one associated device for this.
  • DE 26 12 094 C2 discloses a device for changing the distance of frame or scaffold parts of a strand guide which are opposite one another in pairs and which are connected by tie rods and in which bushes are provided which can be rotated with the aid of pressure cylinders.
  • the movable frame parts are through
  • interchangeable spacers between the movable frame part and the inner bushings can be used for setting a predetermined roller distance.
  • the distance between the guide rollers can also be continuously adjusted.
  • Continuous casting stands are known from US Pat. No. 3,891,025, which are hydraulically adjustable and whose jaw width is measured by position sensors and a servo unit can be set.
  • the main aim of the subject of this patent is only to apply sufficient contact pressure for the transport of the strand or to set the mouth width.
  • the invention has set itself the goal of creating a method and an apparatus with which the mouth width with simple
  • Averaging can be set exactly over the entire strand guide and, moreover, the current position of the sump tip within the slab can be determined. Furthermore, the device should be able to safely guide the cold strand with a simple structure.
  • the invention achieves the aim by the characterizing features of method claim 1 and device claims 6 and 8.
  • the mouth width is changed with an oscillation around a predeterminable center line of the desired slab thickness.
  • the amplitude of the oscillating jaw width is set in a size that prevents plastic deformation of the strand shell.
  • the current jaw width is recorded via displacement measuring elements and fed to a computer.
  • the actuating force of the adjusting elements for the infinitely variable change of the mouth width is determined and also fed to the computer.
  • the amplitude is monitored by means of a computer program and as the amplitude of the actuating force increases, the jaw width is set to a predeterminable dimension and / or the jaw width of the guide rollers is guided in a pressure-controlled manner via at least one of the adjusting elements which continuously adjust the jaw width.
  • the amplitude of the actuating force is a measure of the solidification of the strand. This means that a relatively small amplitude of the actuating force is encountered when the strand shell is still thin and there is a large liquid sump. The amplitude reaches its greatest value when the strand has solidified.
  • the detection of the amplitude of the actuating force thus provides a reliable measure of detecting the current position of the swamp tip and carrying out a dynamic soft reduction.
  • this can be represented in the quasi-static measurement in two simple curves Fi and F 2 , which overall represents a shape of an angle with two legs.
  • the optimal pressure distribution can also be found on the strand shell and the liquid sump enveloped by it.
  • the optimal jaw width can be set in such a way that the oscillation detects whether the trend towards larger or smaller jaw widths away from the optimal jaw width occurs and then counteracted with targeted measures.
  • the actuating force F relates to the internal width s in the form of a hysteresis curve.
  • the deformation work of a segment during the stroke i.e. the area within the hysteresis curve can be calculated using evaluation software and conclusions can be drawn about the strand consistency.
  • the hysteresis curve has a relatively small area overall when the shell is still thin and the sump is relatively large.
  • the hysteresis curve has a relatively large area as the shell continues to grow and the sump volume decreases.
  • the hysteresis takes on a particularly slim form when the strand is completely solidified.
  • the invention achieves an optimization of the production performance in qualitative and quantitative respects, namely with regard to the qualitative optimization through always optimally carried out soft reduction (locally, dynamic soft reduction) and with regard to the quantitative optimization of the production performance through the possibility of the machine length to be able to make maximum use of it while maintaining high operational reliability.
  • Fig. 4 shows the formation of the hysteresis curve
  • FIG. 1 shows in the upper part of the picture the diagram of a continuous casting plant with a mold 11, at the mouth of which a slab B emerges and is guided by stands 21.1 to 21.5.
  • the slab the strand shell of which gradually solidifies, there is a sump S up to a sump tip S s .
  • adjustment elements 31 are only shown in the framework 21.4.
  • a scaffold 21 which has an upper frame 22 and a lower frame 23, which determine the mouth width between the guide rollers 24 arranged on them via adjusting elements 31.
  • One of the guide rollers is a drive roller 25, the function of which is described in more detail in FIG.
  • the adjusting elements have a pull rod 32 which is regularly fastened in the subframe 23 and has a piston 33 at its opposite end which is guided in a cylinder 34.
  • the individual stands 21 have at least four adjusting elements 31, the cylinders 34 of which are connected to an actuator 35.
  • the adjusting element 31 is equipped with a displacement measuring element, which is connected to a displacement measuring transducer, which is connected to a computer for measurement purposes.
  • the cylinder 34 is equipped with a pressure measuring element 43, which is connected to a pressure sensor 44, which is also connected to the computer by measuring technology.
  • the computer 45 works together with the actuator 35.
  • the actuator is connected to an oscillator.
  • the mouth width is plotted against time in the upper part of the picture.
  • the mouth width is changed by the desired slab thickness (center line c).
  • the desired slab thickness In the present case it is a sine wave.
  • other forms of vibration are also possible and provided.
  • the positioning force F is plotted over time in the lower part of the picture.
  • the actuating force has a relatively small amplitude.
  • the amplitude of the actuating force has increased significantly.
  • the dependence of the actuating force F / mouth width S shows a hysteresis, which essentially has the shape of an angle with two legs with a vertex P. In the area of the point, the optimal mouth width is expected.
  • the sump of type ⁇ has a thin shell with a sump of low viscosity
  • the type ß has a significantly thicker shell and at the same time a sump with high viscosity
  • type ⁇ has solidified overall.
  • the image representations shown here show a uniform distribution of the hysteresis and thus the optimal mouth width once s ⁇ or also s p .
  • FIG. 5 shows a scaffold in three different operating states.
  • the item numbers correspond to those already listed in the pictures above.
  • the upper part of the picture is the normal casting operation, in which a position control is carried out on all cylinders.
  • a drivable guide roller is provided at the scaffold entrance on the upper frame.
  • the operation is shown when the strand has solidified.
  • the cylinders for the adjusting elements arranged in the region of the drivable guide roller are pressure-controlled and the cylinders shown downstream are position-controlled.
  • the upper frame of the scaffold is slanted for the transport of the cold strand in such a way that the drive roller has direct contact with the cold strand and the cylinders of the adjusting elements, which are moved by the Drive roller are arranged away, position controlled. Their position is adjusted so that they have no contact with the cold strand during transportation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Basic Packing Technique (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Heat Treatment Of Steel (AREA)
  • Coating With Molten Metal (AREA)
  • Cell Electrode Carriers And Collectors (AREA)
  • Metal Rolling (AREA)

Abstract

La présente invention concerne un procédé de production de brames d'acier, selon lequel la barre quitte une lingotière avec la fusion liquide qu'elle contient et, dans un guide de coulée placée en aval, l'ouverture de mâchoire des rouleaux de guidage placés en échauffaudage est réglée sans à-coups par des éléments reliant les cadres inférieur et supérieur, procédé qui se décompose comme suit: a) modification de l'ouverture de mâchoire (s) par balancement autour d'une ligne médiane (c) prédéterminée, de telle sorte que les effets dynamiques sur les rouleaux de guidage soient négligeables; b) réglage de l'amplitude (A) du balancement de l'ouverture de mâchoire sur une grandeur telle qu'elle n'entraîne pas de déformation plastique de la lingotière; c) détermination de l'ouverture réelle de la mâchoire (s); d) détermination simultanée de la puissance de manoeuvre (F) des éléments de réglage, ainsi que de l'amplitude (A) de la puissance de manoeuvre; et e) pour une amplitude croissante (A) de la puissance de manoeuvre (F), réglage de l'ouverture de mâchoire (s) sur une mesure prédéterminée et/ou guidée par réglage sous pression sur au moins un élément de réglage.
EP98932038A 1997-05-07 1998-04-27 Procede et dispositif de production de brames d'acier Expired - Lifetime EP0980295B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19720768 1997-05-07
DE19720768A DE19720768C1 (de) 1997-05-07 1997-05-07 Verfahren und Vorrichtung zum Erzeugen von Brammen aus Stahl
PCT/DE1998/001198 WO1998050185A1 (fr) 1997-05-07 1998-04-27 Procede et dispositif de production de brames d'acier

Publications (2)

Publication Number Publication Date
EP0980295A1 true EP0980295A1 (fr) 2000-02-23
EP0980295B1 EP0980295B1 (fr) 2001-10-17

Family

ID=7829787

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98932038A Expired - Lifetime EP0980295B1 (fr) 1997-05-07 1998-04-27 Procede et dispositif de production de brames d'acier

Country Status (10)

Country Link
US (1) US6701999B2 (fr)
EP (1) EP0980295B1 (fr)
KR (1) KR100531125B1 (fr)
AT (1) ATE206973T1 (fr)
AU (1) AU8209098A (fr)
BR (1) BR9809604A (fr)
DE (2) DE19720768C1 (fr)
ID (1) ID20520A (fr)
TW (1) TW404869B (fr)
WO (1) WO1998050185A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003070399A1 (fr) * 2002-02-22 2003-08-28 Sms Demag Aktiengesellschaft Procede et dispositif de coulee continue et de faconnage direct d'un metal, notamment d'une barre de coulee en materiaux a base d'acier
WO2008095456A1 (fr) * 2007-02-05 2008-08-14 Sms Siemag Ag Dispositif de coulée continue pour la production de brames d'acier
WO2011124466A1 (fr) 2010-04-09 2011-10-13 Sms Siemag Ag Procédé et dispositif pour ajuster la position de l'extrémité du cratère liquide dans une barre de coulée

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19809807C2 (de) * 1998-03-09 2003-03-27 Sms Demag Ag Anstellverfahren für ein Rollensegment einer Stranggießanlage
DE10039016B4 (de) * 2000-08-10 2010-02-25 Sms Siemag Aktiengesellschaft Verfahren zum Erzeugen von Brammen aus Stahl
DE10042079A1 (de) * 2000-08-26 2002-04-25 Sms Demag Ag Stranggießanlage mit Soft-Reduction-Strecke
DE10057160A1 (de) * 2000-11-16 2002-05-29 Sms Demag Ag Verfahren und Vorrichtung zum Herstellen von Dünnbrammen
AT409465B (de) * 2000-12-12 2002-08-26 Voest Alpine Ind Anlagen Verfahren zum einstellen eines giessspaltes an einer strangführung einer stranggiessanlage
DE10122118A1 (de) * 2001-05-07 2002-11-14 Sms Demag Ag Verfahren und Vorrichtung zum Stranggiessen von Blöcken, Brammen und Dünnbrammen
TWI253360B (en) * 2001-12-18 2006-04-21 Sms Demag Ag Feed opening adjustment of segments for continuous casting systems
DE10224533A1 (de) * 2002-05-31 2003-12-18 Sms Demag Ag Verfahren zur Ermittlung der Reibkraft bei einem erzwungenen Schwingungen ausgesetzten System
DE10349962B3 (de) * 2003-10-24 2005-06-02 Ingo Dr. Schubert Anordnung zur Ermittlung der Konsistenz eines Gießstranges in einer Stranggießalage und/oder Maulweite derselben
DE102004002783A1 (de) * 2004-01-20 2005-08-04 Sms Demag Ag Verfahren und Einrichtung zum Bestimmen der Lage der Sumpfspitze im Gießstrang beim Stranggießen von flüssigen Metallen, insbesondere von flüssigen Stahlwerkstoffen
DE102004054296B4 (de) * 2004-11-09 2021-11-11 Sms Group Gmbh Steuer- und / oder Regeleinrichtung für ein Stützrollengerüst einer Stranggießvorrichtung für Metalle, insbesondere für Stahlwerkstoffe
DE102005037138A1 (de) * 2005-08-06 2007-02-08 Sms Demag Ag Verfahren und Vorrichtung zum präzisen Positionieren einer Anzahl zusammenwirkender Walz- oder Rollenelemente
DE102006016375B4 (de) * 2006-04-05 2023-02-16 Sms Group Gmbh Verfahren und Einrichtung zum Bestimmen der Kernerstarrung und/oder der Sumpfspitze beim Stranggießen von Metallen, insbesondere von Stahlwerkstoffen
DE102007016045A1 (de) * 2007-03-30 2008-10-02 Sms Demag Ag Vorrichtung zum hydraulischen Anstellen von Bauteilen
RU2362650C2 (ru) * 2007-06-26 2009-07-27 Общество с ограниченной ответственностью "Уралмаш-Инжиниринг" Способ регулирования скорости слитка в роликовом аппарате машины непрерывного литья заготовок
DE102008015008B4 (de) * 2008-03-19 2024-02-01 Sms Group Gmbh Verfahren zum Betreiben einer Strangführungseinrichtung
JP5600929B2 (ja) * 2008-12-10 2014-10-08 Ｊｆｅスチール株式会社 連続鋳造鋳片の製造方法
DE102009031651A1 (de) 2009-07-03 2011-01-05 Sms Siemag Aktiengesellschaft Verfahren zum Bestimmen der Lage der Sumpfspitze eines gegossenen Metallstrangs und Stranggießanlage
DE102012009870A1 (de) * 2012-05-15 2013-11-21 Sms Siemag Ag Verfahren und Strangführung zur Beeinflussung der Erstarrung des teilweise noch flüssigen Kernes während des Stranggießens
CN103048242A (zh) * 2013-01-21 2013-04-17 中冶赛迪电气技术有限公司 连铸坯固相率和凝固末端的检测方法及检测装置
US10888920B2 (en) * 2016-12-08 2021-01-12 Aktiebolaget Skf Monitoring and control system for continuous casting machine
CN110303129B (zh) * 2019-06-26 2021-03-09 山东钢铁股份有限公司 一种宽厚板坯的制造方法
EP3878574A1 (fr) * 2020-03-13 2021-09-15 Primetals Technologies Austria GmbH Détermination de l'état des rouleaux de guidage de barre par évaluation des vibrations
IT202200006581A1 (it) * 2022-04-04 2023-10-04 Danieli Off Mecc Segmento di un dispositivo di soft reduction per eseguire una soft reduction di bramme
CN114918393B (zh) * 2022-06-09 2024-07-19 吉林建龙钢铁有限责任公司 一种控制中、低碳钢结晶器液位周期性波动的方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1213575B (de) * 1962-06-29 1966-03-31 Demag Ag Richtmaschine fuer Stranggiessanlagen
US3891025A (en) * 1972-06-29 1975-06-24 Schloemann Siemag Ag Apparatus for withdrawing a casting and feeding a dummy bar in a continuous casting machine for steel
US4030533A (en) * 1974-06-24 1977-06-21 Nippon Steel Corporation Continuous casting system
AT335649B (de) * 1975-03-25 1977-03-25 Voest Ag Strangfuhrung an einer stranggiessanlage
DE3106531A1 (de) * 1981-02-21 1982-09-09 SMS Schloemann-Siemag AG, 4000 Düsseldorf Treib- und richtmaschine fuer stranggiessanlagen
US4953614A (en) * 1987-04-09 1990-09-04 Herbert Lemper Modular continuous caster
US5152334A (en) * 1990-05-02 1992-10-06 Mesta International Guide roll assembly and method of guiding cast strand
US5488987A (en) * 1991-10-31 1996-02-06 Danieli & C. Officine Meccaniche Spa Method for the controlled pre-rolling of thin slabs leaving a continuous casting plant, and relative device
DE4341719C2 (de) * 1993-12-03 2001-02-01 Mannesmann Ag Einrichtung zum Stranggießen von Stahl
US6044895A (en) * 1993-12-21 2000-04-04 Siemens Aktiengesellschaft Continuous casting and rolling system including control system
JP3008821B2 (ja) * 1994-07-29 2000-02-14 住友金属工業株式会社 薄鋳片の連続鋳造方法および装置
US6102101A (en) * 1995-10-18 2000-08-15 Sumitomo Metal Industries, Ltd. Continuous casting method and apparatus thereof
DE69601409T2 (de) * 1995-11-28 1999-09-02 Danieli & C. Officine Meccaniche S.P.A. Verfahren und Vorrichtung zum geregelten Vorwalzen von aus einer Stranggiessanlage austretenden Dünnbramme

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9850185A1 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003070399A1 (fr) * 2002-02-22 2003-08-28 Sms Demag Aktiengesellschaft Procede et dispositif de coulee continue et de faconnage direct d'un metal, notamment d'une barre de coulee en materiaux a base d'acier
US7121323B2 (en) 2002-02-22 2006-10-17 Sms Demag Ag Method and device for the continuous casting and direct shaping of a metal strand, in particular a steel cast strand
WO2008095456A1 (fr) * 2007-02-05 2008-08-14 Sms Siemag Ag Dispositif de coulée continue pour la production de brames d'acier
WO2011124466A1 (fr) 2010-04-09 2011-10-13 Sms Siemag Ag Procédé et dispositif pour ajuster la position de l'extrémité du cratère liquide dans une barre de coulée

Also Published As

Publication number Publication date
DE59801786D1 (de) 2001-11-22
US6701999B2 (en) 2004-03-09
DE19720768C1 (de) 1999-01-14
AU8209098A (en) 1998-11-27
ATE206973T1 (de) 2001-11-15
US20030145976A1 (en) 2003-08-07
BR9809604A (pt) 2000-10-03
ID20520A (id) 1999-01-07
EP0980295B1 (fr) 2001-10-17
KR20010012379A (ko) 2001-02-15
TW404869B (en) 2000-09-11
KR100531125B1 (ko) 2005-11-24
WO1998050185A1 (fr) 1998-11-12

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