EP0545104A2 - Procédé et dispositif pour coulée continue des lingots ou blooms - Google Patents

Procédé et dispositif pour coulée continue des lingots ou blooms Download PDF

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Publication number
EP0545104A2
EP0545104A2 EP92119157A EP92119157A EP0545104A2 EP 0545104 A2 EP0545104 A2 EP 0545104A2 EP 92119157 A EP92119157 A EP 92119157A EP 92119157 A EP92119157 A EP 92119157A EP 0545104 A2 EP0545104 A2 EP 0545104A2
Authority
EP
European Patent Office
Prior art keywords
spindles
casting
soft reduction
continuous casting
load
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
EP92119157A
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German (de)
English (en)
Other versions
EP0545104A3 (en
EP0545104B1 (fr
Inventor
Hans Streubel
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 Schloemann Siemag AG
Schloemann Siemag 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6445547&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0545104(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by SMS Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0545104A2 publication Critical patent/EP0545104A2/fr
Publication of EP0545104A3 publication Critical patent/EP0545104A3/de
Application granted granted Critical
Publication of EP0545104B1 publication Critical patent/EP0545104B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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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

Definitions

  • the invention relates to a method and a device for the continuous casting of slabs or blocks in a continuous casting plant with a soft reduction section, which can be adjusted individually or as a segment by means of hydraulic cylinders against one another and can be infinitely adjusted with respect to one another by means of spindles in their clear distance (jaw width).
  • the slabs or blocks produced in such continuous casting plants serve as the starting material for rolling mill products, such as in particular slabs or thin slabs for the production of sheets or strips.
  • a thickness reduction between 0.5 mm per meter and 3 mm per meter is carried out in a soft reduction section of the continuous casting plant in the area of final solidification.
  • the width of the mouth is adjusted according to the shrinking behavior of the strand over the length of the machine.
  • the pairs of rolls, individually or combined into segments are adjusted more closely beyond the shrinking behavior of the strand in order to be in the range of Residual solidification to achieve an improvement in internal quality.
  • Truss and roll deflections must be kept small across the strand width, for example through the use of split continuous casters.
  • the upper yoke is inclined from the inlet towards the outlet so that there is a smaller mouth width on the outlet side than on the inlet side.
  • the soft reduction no longer leads to an improvement in the internal structure of the cast strand if the strand has solidified before entering the soft reduction path or if it has not solidified at the end of the soft reduction path.
  • the strand should therefore run into this stretch with a targeted reduction in thickness with a residual sump and be solidified at the end of the soft reduction stretch.
  • this often fails due to the changing casting parameters, such as in particular the casting speed, the steel temperature, the steel quality and the secondary cooling, because the gap width set during the casting break or the clear distance in the soft reduction section only corresponds to a narrow casting speed range. If the residual solidification is not in the soft reduction section, there is no reduction in segregation and no compression of the core structure.
  • the invention has for its object to provide a method and an apparatus that with simple means a dynamic distance or mouth width adjustment even during the casting operation, i.e. enable under load, especially in adaptation to the changing position of the soft reduction section due to changing casting parameters.
  • the spindles are moved to a desired internal width reduced.
  • the desired jaw width can thus be adjusted continuously using the reduced-load spindles.
  • pressure transducers which enable a continuous force measurement, can be arranged between the spindles in the upper segment part and the lower segment part. Due to this astonishingly simple measure of pressure relief, an essentially load-free, inexpensive and reliable adjustment of the spindles inside and outside the cooling chamber of the continuous casting plant can be achieved.
  • Another significant advantage is that the length of the soft reduction section and the reduction in thickness can be adapted to the casting speed, ie at a lower casting speed the length of the soft reduction section is shortened and the thickness decrease in mm per meter; at higher speeds, however, the length of the soft reduction route is increased.
  • Adjust the thickness reduction within the soft reduction range differently and thus support the improvement of the internal quality.
  • the hydraulic pressure of the positioning cylinders can be reduced so much during casting that the force acting on the spindle can only be a fraction of the operating force - the maximum force that occurs during operation up to 100 t, if, for example the strand is solidified - corresponds, for example, to only 2 to 3 t, so that an opening width adjustment is possible in a simple manner, for which only a low drive power is required.
  • an excess of force can be determined and it can be deduced from the forces which occur where the strand still has a residual sump or where it has solidified and thus determine the position of the soft reduction path. This enables rapid process optimization in the sense that the exact position of the soft reduction section and the decrease in thickness can be determined as a function of essentially the casting speed, the secondary cooling and the steel quality.
  • the spindles can be based on pressure load cells. These indicate both the excess force from the segment or roller locking force that enables the determination of the soft reduction path and the relieved hydraulic pressure, which enables the spindles to be moved with reduced load during casting.
  • the spindles can be driven against a hydraulic stop which is subjected to a force which exceeds the locking or setting force is.
  • the hydraulics need to be depressurized to adjust the rollers to a new internal width dimension or a new clearance dimension, and the spindles can then be moved to the new dimension with reduced load.
  • a plunger is arranged between a spindle and a support of the lower yoke, which has a fixed stop in its cylinder space.
  • the plungers can be driven against their fixed stops with an excess of force, which support the spindles with a pressure exceeding the starting pressure.
  • the plungers are pressurized again until they come into contact with the pistons against the fixed stops; in this position the rollers then take the desired distance from each other.
  • rollers 2 In a continuous caster for casting slabs or blocks, not shown, numerous rollers 2, either individually or arranged in strand guide segments 1, form a guide, which may have a thickness reduction on an extruded strand 3 (see FIG. 3).
  • the rollers 2 can be adjusted to one another to the desired thickness 4 by means of hydraulic cylinders 5, the cylinder tubes 6 of which are fastened to the lower yoke 7 and the piston rods 8 of which engage the upper yoke 9 of the strand guide segment 1, as shown in FIGS. 1 and 2.
  • Each at the inlet and outlet 11 and 12 (see FIG. 3) of the strand guide segment 1 are paired associated pressure and adjusting spindles 16 adjustable by a motor 13, a gear 14 and drive shafts 15 (see FIG.
  • the thus reduced-load adjustment of the pressure spindles 16 makes it possible to adapt the rolls to be moved closer to one another in this zone than required as a result of the shrinkage of the strand, even during operation, to changing casting parameters in a continuous casting installation.
  • the soft reduction section is located where there is still a residual sump 27 in section 3, but after leaving the soft reduction section the section is completely solidified (cf. FIG. 3); it shifts - in relation to the direction of the strand - with changing casting parameters such as in particular different casting speeds up or down.
  • the forces are measured continuously by means of the pressure load cells 17 and can be inferred from measured values which differ from one another, where the strand 3 still has a residual sump 27 or where it has already solidified.
  • the upper yoke 9 is inclined towards the outlet 12 based on the measured values, so that the mouth width 25 is greater at the inlet 11 than at the outlet 12 (cf. Mouth width 26 in Fig. 3) results.
  • the wedge can be adjusted in accordance with the residual sump 27 so that the strand 3 within the solidification section is as short as possible before the solidification point - cf. in Fig. 3 the sump tip numbered 28 - a deformation with a decrease in thickness of e.g. 0.5 mm to 3 mm per meter.
  • the strand guide rollers 2 - regardless of whether they can be adjusted individually or as a segment against one another - can always be adjusted to changing casting parameters and / or one correspondingly Adjust the changing position of the sump tip 28.
  • position adjusters 29 are also assigned to the spindle adjusters, which - starting from a calibration value which e.g. can be reached by lowering the upper yoke 9 to fixed stops - allow a more or less wide opening at the inlet and outlet 11, 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Metal Rolling (AREA)
EP92119157A 1991-11-26 1992-11-09 Procédé et dispositif pour coulée continue des lingots ou blooms Revoked EP0545104B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4138740A DE4138740A1 (de) 1991-11-26 1991-11-26 Verfahren und vorrichtung zum stranggiessen von brammen oder bloecken
DE4138740 1991-11-26

Publications (3)

Publication Number Publication Date
EP0545104A2 true EP0545104A2 (fr) 1993-06-09
EP0545104A3 EP0545104A3 (en) 1993-06-30
EP0545104B1 EP0545104B1 (fr) 1997-04-02

Family

ID=6445547

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92119157A Revoked EP0545104B1 (fr) 1991-11-26 1992-11-09 Procédé et dispositif pour coulée continue des lingots ou blooms

Country Status (6)

Country Link
US (1) US5348074A (fr)
EP (1) EP0545104B1 (fr)
AT (1) ATE150993T1 (fr)
CA (1) CA2083804C (fr)
DE (2) DE4138740A1 (fr)
ES (1) ES2099784T3 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT401744B (de) * 1993-10-14 1996-11-25 Voest Alpine Ind Anlagen Verfahren und anlage zum stranggiessen
EP0875316A3 (fr) * 1997-04-24 1999-09-22 MANNESMANN Aktiengesellschaft Appareil pour l'extraction d'une barre
EP1068914A1 (fr) * 1999-07-16 2001-01-17 SMS Demag AG Procédé et dispositif pour couler un lingot métallique continu
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
KR100743492B1 (ko) * 1999-04-10 2007-07-30 에스엠에스 데마그 악티엔게젤샤프트 연속주조 슬래브, 특히 박 슬래브의 외형을 조절하는 방법및 장치
CN112355262A (zh) * 2020-11-09 2021-02-12 湖南工程学院 一种用于板坯连铸动态轻压下的控制装置

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2697182B1 (fr) * 1992-10-26 1995-01-13 Clecim Sa Dispositif pour le guidage d'une barre de coulée de la sortie de sa roue de coulée jusqu'à l'entrée d'un laminoir.
FR2728817A1 (fr) * 1994-12-29 1996-07-05 Usinor Sacilor Procede de regulation pour la coulee continue entre cylindres
DE19511113A1 (de) * 1995-03-25 1996-09-26 Schloemann Siemag Ag Strangführung einer Stranggießanlage für Dünnbrammen
AT404807B (de) * 1996-05-08 1999-03-25 Voest Alpine Ind Anlagen Stellvorrichtung zur einrichtung der lage von strangstützelementen
DE19627336C1 (de) * 1996-06-28 1997-09-18 Mannesmann Ag Verfahren zum Führen eines Stranges und Strangführung
DE19745056A1 (de) * 1997-10-11 1999-04-15 Schloemann Siemag Ag Verfahren und Anlage zur Erzeugung von Brammen in einer Stranggießanlage
DE19809807C2 (de) * 1998-03-09 2003-03-27 Sms Demag Ag Anstellverfahren für ein Rollensegment einer Stranggießanlage
DE19824366A1 (de) * 1998-05-30 1999-12-02 Schloemann Siemag Ag Strangführungssegment für Brammengießanlagen
DE19921296A1 (de) * 1999-05-07 2000-11-09 Sms Demag Ag Verfahren und Vorrichtung zum Herstellen von stranggegossenen Stahlerzeugnissen
DE19928196A1 (de) * 1999-06-19 2000-12-21 Sms Demag Ag Vorrichtung zum Einstellen von Führungssegmenten einer Stranggieß- bzw. Gießwalzanlage
DE10007706A1 (de) * 2000-02-19 2001-08-23 Sms Demag Ag Verfahren und Anlage zum Gießen von Vorprodukten in einer Stranggießanlage
DE10011689A1 (de) * 2000-03-10 2001-09-13 Sms Demag Ag Verfahren zum Stranggiessen von Brammen und insbesondere von Dünnbrammen
DE10040271A1 (de) * 2000-08-17 2002-02-28 Sms Demag Ag Vorrichtung zum Stranggießen von Metallen, insbesondere von Stahl
AT409465B (de) * 2000-12-12 2002-08-26 Voest Alpine Ind Anlagen Verfahren zum einstellen eines giessspaltes an einer strangführung einer stranggiessanlage
DE10118518A1 (de) * 2001-04-14 2002-10-24 Sms Demag Ag Formatdickenerhöhung für Dünnbrammen-Stranggießanlagen
DE10119550A1 (de) * 2001-04-21 2002-10-24 Sms Demag Ag Verfahren und Vorrichtung zum Herstellen von Stranggu-Vormaterial
DE10122118A1 (de) * 2001-05-07 2002-11-14 Sms Demag Ag Verfahren und Vorrichtung zum Stranggiessen von Blöcken, Brammen und Dünnbrammen
DE10153960A1 (de) * 2001-11-06 2003-05-22 Sms Demag Ag Verfahren und Gießmaschine zum Stranggießen von Knüppel- und Blockformaten oder dergleichen
KR100448916B1 (ko) * 2001-12-21 2004-09-16 재단법인 포항산업과학연구원 소프트 리덕션시 응고 완료점 검출 및 적정 리덕션량산정방법
JP4218383B2 (ja) * 2002-04-08 2009-02-04 住友金属工業株式会社 連続鋳造方法、連続鋳造装置および連続鋳造鋳片
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
DE102006048511A1 (de) * 2006-10-13 2008-04-17 Sms Demag Ag Strangführungsvorrichtung und Verfahren für deren Betrieb
BR112014016984B1 (pt) * 2012-01-12 2020-05-12 Nippon Steel & Sumikin Engineering Co., Ltd. Dispositivo de redução de peça fundida
ES2653556T3 (es) * 2013-05-02 2018-02-07 Nippon Steel & Sumitomo Metal Corporation Equipo de colada continua
JP2015226918A (ja) * 2014-05-30 2015-12-17 新日鐵住金株式会社 鋼の連続鋳造方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1166044A (en) * 1965-10-12 1969-10-01 G Sojuzny I Proekt Metall Zd O Improvements in and relating to a Guide Device in the Secondary Cooling Zone of a Continuous Metal Casting Machine
JPS59107756A (ja) * 1982-12-08 1984-06-22 Kawasaki Steel Corp 連鋳鋳片の軽圧下装置
EP0130887A1 (fr) * 1983-06-24 1985-01-09 Clecim Dispositif de support d'un produit coulé en sortie d'une lingotière pour coulée continueet procédé de reglage du dispositif
JPS607575B2 (ja) † 1978-01-20 1985-02-26 日立造船株式会社 連続鋳造設備におけるロ−ル間隔調整装置
EP0194656A1 (fr) * 1985-03-12 1986-09-17 MANNESMANN Aktiengesellschaft Dispositif pour la coulée continue de métal, en particulier d'acier
JPS62127147A (ja) † 1985-11-27 1987-06-09 Hitachi Zosen Corp 連続鋳造設備におけるロ−ルセグメント
EP0417492A2 (fr) * 1989-08-16 1991-03-20 Daido Tokushuko Kabushiki Kaisha Coulée continue verticale et appareil de coulée
JPH0650539B2 (ja) † 1989-11-30 1994-06-29 アメリカン テレフォン アンド テレグラフ カムパニー 文字認識用計算ネットワーク

Family Cites Families (6)

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Publication number Priority date Publication date Assignee Title
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
DE2416625C3 (de) * 1973-04-10 1978-12-21 Kobe Steel Ltd., Kobe, Hyogo (Japan) Vorrichtung zum Verriegeln der auswechselbaren Traversen eines Führungswalzengerüstes einer Stranggießanlage
US4056140A (en) * 1976-10-20 1977-11-01 United States Steel Corporation Method and mechanism for controlling forces in a continuous-casting machine
JPH067575B2 (ja) * 1986-05-02 1994-01-26 住友電気工業株式会社 多層配線法
JPH0620596B2 (ja) * 1987-09-14 1994-03-23 日立造船株式会社 水平連続鋳造設備における鋳片引抜き装置
JPH01205861A (ja) * 1988-02-10 1989-08-18 Nippon Steel Corp 連続鋳造設備における鋳片クランプ力制御方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1166044A (en) * 1965-10-12 1969-10-01 G Sojuzny I Proekt Metall Zd O Improvements in and relating to a Guide Device in the Secondary Cooling Zone of a Continuous Metal Casting Machine
JPS607575B2 (ja) † 1978-01-20 1985-02-26 日立造船株式会社 連続鋳造設備におけるロ−ル間隔調整装置
JPS59107756A (ja) * 1982-12-08 1984-06-22 Kawasaki Steel Corp 連鋳鋳片の軽圧下装置
EP0130887A1 (fr) * 1983-06-24 1985-01-09 Clecim Dispositif de support d'un produit coulé en sortie d'une lingotière pour coulée continueet procédé de reglage du dispositif
EP0194656A1 (fr) * 1985-03-12 1986-09-17 MANNESMANN Aktiengesellschaft Dispositif pour la coulée continue de métal, en particulier d'acier
JPS62127147A (ja) † 1985-11-27 1987-06-09 Hitachi Zosen Corp 連続鋳造設備におけるロ−ルセグメント
EP0417492A2 (fr) * 1989-08-16 1991-03-20 Daido Tokushuko Kabushiki Kaisha Coulée continue verticale et appareil de coulée
JPH0650539B2 (ja) † 1989-11-30 1994-06-29 アメリカン テレフォン アンド テレグラフ カムパニー 文字認識用計算ネットワーク

Non-Patent Citations (1)

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Title
PATENT ABSTRACTS OF JAPAN vol. 8, no. 227 (M-332)(1664) 18. Oktober 1984 & JP-A-59 107 756 ( KAWASAKI SEITETSU K.K. ) *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT401744B (de) * 1993-10-14 1996-11-25 Voest Alpine Ind Anlagen Verfahren und anlage zum stranggiessen
DE4436328C2 (de) * 1993-10-14 2002-09-19 Voest Alpine Ind Anlagen Verfahren und Anlage zum Stranggießen
DE4436328C5 (de) * 1993-10-14 2006-06-01 Voest-Alpine Industrieanlagenbau Gmbh Verfahren und Anlage zum Stranggießen
EP0875316A3 (fr) * 1997-04-24 1999-09-22 MANNESMANN Aktiengesellschaft Appareil pour l'extraction d'une barre
KR100743492B1 (ko) * 1999-04-10 2007-07-30 에스엠에스 데마그 악티엔게젤샤프트 연속주조 슬래브, 특히 박 슬래브의 외형을 조절하는 방법및 장치
EP1068914A1 (fr) * 1999-07-16 2001-01-17 SMS Demag AG Procédé et dispositif pour couler un lingot métallique continu
DE10033307C2 (de) * 1999-07-16 2002-04-18 Sms Demag Ag Verfahren und Einrichtung zum Gießen eines metallischen Endlosstranges
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
CN112355262A (zh) * 2020-11-09 2021-02-12 湖南工程学院 一种用于板坯连铸动态轻压下的控制装置

Also Published As

Publication number Publication date
DE59208291D1 (de) 1997-05-07
ATE150993T1 (de) 1997-04-15
EP0545104A3 (en) 1993-06-30
DE4138740A1 (de) 1993-05-27
ES2099784T3 (es) 1997-06-01
CA2083804C (fr) 2000-05-23
CA2083804A1 (fr) 1993-05-27
EP0545104B1 (fr) 1997-04-02
US5348074A (en) 1994-09-20

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