EP1817125A2 - Procede et segment de rouleaux pour determiner la solidification a coeur et/ou l'extremite du cratere liquide lors de la coulee continue de metaux, notamment de materiaux a base d'acier - Google Patents

Procede et segment de rouleaux pour determiner la solidification a coeur et/ou l'extremite du cratere liquide lors de la coulee continue de metaux, notamment de materiaux a base d'acier

Info

Publication number
EP1817125A2
EP1817125A2 EP05790096A EP05790096A EP1817125A2 EP 1817125 A2 EP1817125 A2 EP 1817125A2 EP 05790096 A EP05790096 A EP 05790096A EP 05790096 A EP05790096 A EP 05790096A EP 1817125 A2 EP1817125 A2 EP 1817125A2
Authority
EP
European Patent Office
Prior art keywords
roller
cylinder units
piston
rollers
continuous casting
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.)
Withdrawn
Application number
EP05790096A
Other languages
German (de)
English (en)
Inventor
Axel Weyer
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
SMS Demag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP1817125A2 publication Critical patent/EP1817125A2/fr
Withdrawn legal-status Critical Current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
    • B22D11/16—Controlling or regulating processes or operations
    • 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
    • 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

Definitions

  • the invention relates to a method and a roller segment for determining the core solidification and / or the sump tip in the continuous casting of metals, in particular of steel materials, within a roller segment of a support roller frame, the upper rollers supporting the upper frame via disposed in the corners of a polygon hydraulic piston-cylinder units be set against the sub-rolls of a sub-frame to the respective strand thickness drivingly.
  • each segment frame is divided into two parts and the frame parts are clamped together by means of hydraulic piston-cylinder units.
  • each roller segment has four hydraulic cylinders which clamp in pairs opposing rollers for supporting and promoting the solidifying casting strand. At least one of these rollers is pressed as a drive roller for transferring the strand conveying forces with a defined contact force against the cast strand.
  • the roller gap between the roller conveyor of the fixed side and the roller conveyor of the loose side is detected by hydraulic cylinders with integrated electronic encoders or position sensors, measured and, if necessary, regulated.
  • a determination of the position of the sump tip in the interior of the casting strand takes place via the movement of the entire upper frame and / or an evaluation of the four position values in conjunction with the resultant force values of the four hydraulic cylinders. It has been found that this method of determining the sump tip and the preceding regions is not sufficiently accurate. In addition, the cost of non-position-controlled roller segments is very high.
  • the measured values for position or force rules for determining the position are determined by an independent pair of piston-cylinder units with external measuring device or internal measuring device for adjusting a rotationally driven, single top roller the core solidification and / or the sump tip are taken into account in the cast strand.
  • the obtained measurement results are advantageously used as a basis for extended procedural processes and functions for the operation and optimization of the setting parameters of the continuous casting and the continuous casting plant.
  • the specification of a position value with subsequent evaluation of the resulting force or specification of the force values with subsequent evaluation of the resulting position can be used as process-technical feedback of the strand properties or the position of the sump tip.
  • the determination of the exact position of the sump tip here can be improved in accuracy in contrast to the previously known approach to use the entire upper frame for measurement.
  • the application relates to position-controlled segments and independent installation for segments without position control. The equipment is made cheaper.
  • a presetting of an increased accuracy can be carried out according to further features in that the measured values are measured simultaneously on several (selected) roller segments with at least one pair of independent piston-cylinder units and all measured data are processed to a mean value.
  • the mechanical solution of the invention task is achieved in that in the upper frame an independent, for fastening an external Messeeinrich ⁇ device or at least a pair of hydraulic piston-cylinder units serving traverse is provided with a rotationally driven, individual upper roller for Mes ⁇ solution of the data for the cold strand or the hot extruding force.
  • the traverse can be designed with one or two hydraulic piston-cylinder units.
  • the piston-cylinder units are regulated in their position.
  • position sensors are integrated into the cylinders or an external measuring device is attached to the crossbeam.
  • a control system adopts the determined position values and regulates the desired cylinder position via a hydraulic valve.
  • the individual role can be regulated in the contact force.
  • pressure sensors are installed in the hydraulic cylinders (in both cylinder chambers) or in connecting lines (between control valve and cylinder). The cylinder set forces are controlled by the hydraulic control valve.
  • One embodiment provides that with an overall odd number of upper rollers and lower rollers, at least one middle upper roller and the opposite lower roller are driven.
  • roller segment with the features according to the invention in the casting direction as the last roller segment of the support roller frame.
  • position-controlled traverses as the last framework of a support roll stand, an optimization of the casting speed with maximum utilization of the continuous casting plant and maximum throughput is possible.
  • a risk due to bulging of the strand behind the continuous casting device at too high a set casting speed at which the liquid bottom leaves the strand guide is thereby avoided.
  • FIG. 1 shows an upper roller segment in perspective in an exploded view
  • FIG Fig. 2 is a perspective view of a unit of upper frame
  • Subframe which forms a Stütz ⁇ roll stand in succession in a row.
  • FIG. 1 and 2 show a roller segment 1 and Fig. 2, the roller segment 1 in the installed state in a part of the support roller frame 2.
  • An upper frame 3 carries the upper rollers 4.
  • In the corners 5a, 5b, 5c, 5d of a polygon are hyd ⁇ Raulische piston-cylinder units 6 mounted and connected to a sub-frame 7 via the piston.
  • the subframe 7 carries the lower roller 8.
  • the upper rollers 4 are in part lengths 4a, 4b and the lower rollers 8 in part lengths 8a, 8b executed and rotatably supported respectively by means of inner bearings 11 and outer bearings 12 and internally cooled.
  • the method for determining the core solidification and / or the position of the sump tip in the continuous casting of metals, in particular Stahlwerkstof ⁇ fen, is exercised such that an independent of the top rollers 4 and lower rollers 8, external measuring device 13 or at least one of the übri ⁇
  • an independent of the top rollers 4 and lower rollers 8 external measuring device 13 or at least one of the übri ⁇
  • the measured values for position or force rules for determining the position of Core solidification and / or the position of the sump tip in the cast strand are taken into account.
  • the f ⁇ driven single upper roller 4 has an upper stub shaft 15 and the opposite not engageable lower roller 8 a lower Wellen ⁇ stump 16, to the respective rotary actuators (not shown) are connected.
  • the measured values at a plurality of roller segments 1 with at least one respective pair 14 of independent piston-cylinder units 14a, 14b can be measured simultaneously and all measured data can be processed to a mean value.
  • the traverse 20 is equipped with lifting lugs 21, so that a structural unit consisting of the individual upper roller 4, the independent pair 14 of piston-cylinder units 6 and the measuring device 13 can be lifted or inserted by crane.
  • the pair 14 of the two piston-cylinder units 6 is connected via joints 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

L'invention concerne un procédé et un segment de rouleaux (1) pour déterminer la solidification à coeur et/ou l'extrémité du cratère liquide lors de la coulée continue de métaux, notamment de matériaux à base d'acier, à l'intérieur d'un segment de rouleaux (1) d'un train de rouleaux de support (2) dont le châssis supérieur (3) qui supporte les rouleaux supérieurs (4) peut être réglé en fonction de l'épaisseur de la barre par entraînement contre les rouleaux inférieurs (8) d'un châssis inférieur (7) par l'intermédiaire d'unités à piston et cylindre (6) hydrauliques disposées dans les angles (5a-5d) d'un polygone. L'objectif de l'invention est d'améliorer ce procédé et ce segment de rouleaux (1) pour qu'ils permettent d'obtenir une plus grande précision. A cet effet, par l'intermédiaire d'une paire indépendante (14) d'unités à piston et cylindre (6) comprenant un dispositif de mesure externe ou interne (13a, 13) pour le réglage d'un rouleau supérieur (4) individuel entraîné en rotation, les valeurs de mesure sont prise en considération lors du réglage de la position ou de la force pour définir l'emplacement de la solidification à coeur et/ou de l'extrémité du cratère liquide dans la barre coulée.
EP05790096A 2004-10-06 2005-09-29 Procede et segment de rouleaux pour determiner la solidification a coeur et/ou l'extremite du cratere liquide lors de la coulee continue de metaux, notamment de materiaux a base d'acier Withdrawn EP1817125A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004048618A DE102004048618A1 (de) 2004-10-06 2004-10-06 Verfahren und Rollensegment zum Bestimmen der Kernerstarrung und/oder der Sumpfspitze beim Stranggießen von Metallen, insbesondere von Stahlwerkstoffen
PCT/EP2005/010533 WO2006037555A1 (fr) 2004-10-06 2005-09-29 Procede et segment de rouleaux pour determiner la solidification a coeur et/ou l'extremite du cratere liquide lors de la coulee continue de metaux, notamment de materiaux a base d'acier

Publications (1)

Publication Number Publication Date
EP1817125A2 true EP1817125A2 (fr) 2007-08-15

Family

ID=35385721

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05790096A Withdrawn EP1817125A2 (fr) 2004-10-06 2005-09-29 Procede et segment de rouleaux pour determiner la solidification a coeur et/ou l'extremite du cratere liquide lors de la coulee continue de metaux, notamment de materiaux a base d'acier

Country Status (12)

Country Link
US (1) US20070251662A1 (fr)
EP (1) EP1817125A2 (fr)
JP (1) JP2008515638A (fr)
KR (1) KR20070057072A (fr)
CN (1) CN101035639A (fr)
CA (1) CA2582947A1 (fr)
DE (1) DE102004048618A1 (fr)
RU (1) RU2006132923A (fr)
TW (1) TW200615060A (fr)
UA (1) UA83551C2 (fr)
WO (1) WO2006037555A1 (fr)
ZA (1) ZA200605635B (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005028703A1 (de) * 2005-06-20 2006-12-28 Siemens Ag Verfahren zur Regelung und/oder Steuerung eines Anstellsegmentes in einer Stranggießanlage und Vorrichtung hierfür
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
DE102008014524A1 (de) * 2007-12-28 2009-07-02 Sms Demag Ag Stranggießanlage mit einer Vorrichtung zur Bestimmung von Erstarrungszuständen eines Gießstrangs und Verfahren hierfür
KR101220274B1 (ko) * 2007-12-31 2013-01-09 주식회사 포스코 주편 응고셀 측정기의 조립장치
AT506549B1 (de) * 2008-03-28 2011-06-15 Siemens Vai Metals Tech Gmbh Strangführungssegment
AT506824B1 (de) * 2008-05-26 2013-01-15 Siemens Vai Metals Tech Gmbh Mehrstrang-stranggiessanlage
DE102009031651A1 (de) * 2009-07-03 2011-01-05 Sms Siemag Aktiengesellschaft Verfahren zum Bestimmen der Lage der Sumpfspitze eines gegossenen Metallstrangs und Stranggießanlage
AT509352B1 (de) * 2010-02-05 2014-06-15 Siemens Vai Metals Tech Gmbh Strangführungssegment in kassettenbauweise mit einzelrollenanstellung
DE102010014347A1 (de) 2010-04-09 2011-10-13 Sms Siemag Ag Verfahren und Vorrichtung zum Einstellen der Lage der Sumpfspitze in einem Gießstrang
CN102205401B (zh) * 2011-05-19 2013-03-06 田陆 传感器定位装置及具有该装置的连铸坯液芯位置检测系统
KR101372640B1 (ko) 2011-12-27 2014-03-11 주식회사 포스코 분리형 세그먼트 및 이를 이용한 롤 교환 방법
DE102014202995A1 (de) 2013-09-16 2015-03-19 Sms Siemag Ag Rahmen für ein Strangführungssegment
CN104174706B (zh) * 2014-09-11 2016-11-23 浙江恒立数控科技股份有限公司 辊组下压量精密测量装置
AT516412B1 (de) * 2014-10-28 2017-07-15 Primetals Technologies Austria GmbH Strangführungsrolleneinheit für eine Stranggießmaschine
CN106552912A (zh) * 2016-11-28 2017-04-05 东北大学 一种连铸凝固末端重压下用增强型紧凑扇形段
CN109434056A (zh) * 2018-12-05 2019-03-08 东北大学 一种连铸坯凝固末端双单点重压下工艺
FI3894112T3 (fi) 2018-12-13 2025-10-03 Arcelormittal Menetelmä valumetallituotteen kraatteripään sijainnin määrittämiseksi
CN111570743B (zh) * 2020-05-12 2025-04-25 中国重型机械研究院股份公司 一种方坯连铸机重压下拉矫机、拉矫机液压控制系统及控制方法
CN115026250A (zh) * 2022-06-27 2022-09-09 东北大学 一种连铸大圆坯末端近液相线电磁搅拌工艺控制方法

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US5152334A (en) * 1990-05-02 1992-10-06 Mesta International Guide roll assembly and method of guiding cast strand
AT401744B (de) * 1993-10-14 1996-11-25 Voest Alpine Ind Anlagen Verfahren und anlage zum stranggiessen
DE19745056A1 (de) * 1997-10-11 1999-04-15 Schloemann Siemag Ag Verfahren und Anlage zur Erzeugung von Brammen in einer Stranggießanlage
AT3953U3 (de) * 2000-06-02 2001-04-25 Voest Alpine Ind Anlagen Strangführungselement und strangführungssegment mit integriertem strangführungselement
AT409465B (de) * 2000-12-12 2002-08-26 Voest Alpine Ind Anlagen Verfahren zum einstellen eines giessspaltes an einer strangführung einer stranggiessanlage
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
DE102004010038A1 (de) * 2004-03-02 2005-09-15 Sms Demag Ag Verfahren und Einrichtung zum Antreiben von Stützrollen einer Stranggießmaschine für flüssige Metalle, insbesondere für flüssige Stahlwerkstoffe

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Also Published As

Publication number Publication date
RU2006132923A (ru) 2008-03-20
TW200615060A (en) 2006-05-16
WO2006037555A1 (fr) 2006-04-13
DE102004048618A1 (de) 2006-04-13
KR20070057072A (ko) 2007-06-04
UA83551C2 (uk) 2008-07-25
CN101035639A (zh) 2007-09-12
ZA200605635B (en) 2007-09-26
US20070251662A1 (en) 2007-11-01
CA2582947A1 (fr) 2006-04-13
JP2008515638A (ja) 2008-05-15

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