EP0943382A1 - Procédé et dispositif de contrÔle du débit calorifique dans une lingotière de coulée continue lors de la coulée de brames - Google Patents

Procédé et dispositif de contrÔle du débit calorifique dans une lingotière de coulée continue lors de la coulée de brames Download PDF

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Publication number
EP0943382A1
EP0943382A1 EP99104351A EP99104351A EP0943382A1 EP 0943382 A1 EP0943382 A1 EP 0943382A1 EP 99104351 A EP99104351 A EP 99104351A EP 99104351 A EP99104351 A EP 99104351A EP 0943382 A1 EP0943382 A1 EP 0943382A1
Authority
EP
European Patent Office
Prior art keywords
mold
water
temperature
over
width
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
EP99104351A
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German (de)
English (en)
Other versions
EP0943382B1 (fr
Inventor
Gerhard Arnolds
Lothar Parschat
Fritz-Peter Prof. Dr. Ing. Pleschiutschnigg
Uwe Plociennik
Joachim Schwellenbach
Hans Streubel
Adolf Zajber
Matthias Arzberger
Mertin Langer
Dirk Dr. Letzel
Hans Moll
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
SMS Demag 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
Application filed by SMS Schloemann Siemag AG, SMS Demag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0943382A1 publication Critical patent/EP0943382A1/fr
Application granted granted Critical
Publication of EP0943382B1 publication Critical patent/EP0943382B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/22—Controlling or regulating processes or operations for cooling cast stock or mould

Definitions

  • the invention relates to a method for producing slabs especially made of steel, with the help of a plate mold, which is made of water-cooled, adjustable narrow side walls that between water-cooled broad side walls can be clamped.
  • the invention also relates to a device for carrying out the Procedure.
  • formats of the dimensional range are used Cast 270-40mm thickness ⁇ 3,500-600mm width.
  • This range of slab dimensions covers the so-called standard slabs with the dimensions 270-150 mm thickness ⁇ 3.000-600 mm width which are cast exclusively with rectangular mold formats.
  • the thin slabs of the size range 150-40 mm thickness ⁇ 3,500-600 mm width are preferably cast mainly with a funnel mold.
  • Both molds use a dipping spout, SEN ( S ubmerge E ntry N ozzle), and continuous casting powder.
  • SEN S ubmerge E ntry N ozzle
  • the media between the middle of the strand and the mold cooling water determine the heat flow, which can be determined for a given amount of mold cooling water by the temperature absorption of the cooling water.
  • SEN The heat flow in the middle of the mold, i.e. in the area of the dip tube, SEN usually deviates from and is next to the SEN greater.
  • the cause of the different heat flows across the mold width are the various total resistances that affect the Formation of different partial resistances of the media steel / SEN / Slag film / copper plate / water boundary layer / water or Allow steel / slag film / copper plate / water to return.
  • a slab mold is described in the patent DE 195 29 931, that consists of at least three mutually independent cooling chamber segments exists, the separate in the mold exit Have connections for the independent supply of mold cooling water.
  • the object of the invention is to describe a process and a mold that enable the skin temperature of the Cu plates of the mold in the area of the mold level to be recorded 'online' in order to achieve an optimal level and distribution and constant temperature profile of the Cu plate skin in the mold level adjust even with changing copper plate thickness can.
  • the solution to the task is independent of the mold type, e.g. of the Vertical, vertical turn or circular mold. Also remains It does not matter whether the mold has a rectangular shape or a Has funnel shape in the mold level.
  • the continuous casting speed when using the inventive mold which preferably oscillates and is provided with a hydraulic oscillator drive between 0.5 and 10 m / min.
  • Figure 1 shows schematically a section through a mold plate 1 and a strand 2 in the casting direction.
  • the strand is poured with immersion spout (SEN) 4 and casting powder 5.
  • the mold 1 has the highest temperature 8 of, for example, 400 ° C at the level of the mold level (6) and represents the starting point for the 400 ° C isotherm (7 - 400 ° C), which is in the space between strand shells 9 and mold plate 1 , filled with solid and liquid pouring slag 10 expands.
  • the copper plate skin temperature has, for example, a distribution as shown in FIG. 1 (temperature diagram). From the pouring level in point 8, the temperatures drop both in the pouring direction 3 and against the pouring direction towards the top edge of the copper plate 12. B. from 50 ° C.
  • This temperature field between the mold plate and the strand shell with its distinctive and maximum temperature 8 of 400 ° C at mold level can be changed by changing the water cooling and / or Copper plate thickness can be influenced.
  • the temperature of the Cu plate in the mold level 8 can be reduced (T - Q 2 ) ⁇ (T - Q 1 ) and, in connection with this, the melting behavior of the mold powder, accompanied by a Crust formation 13, are influenced.
  • Figure 2 shows schematically the broadside copper plate with the Water box 6 of a rectangular mold. Part a) shows the View of the copper plate and drawing b) the section through the copper plate and water tank.
  • the copper plate 1 is on the water box via clamping screws 15 16 screwed.
  • the water box is in the lower area with cooling media, preferably with cooling water, in quantity and pressure over the Inlet 17 supplied.
  • the cooling water 19 flows through at a desired speed Checked outlet openings 20 in the cooling slots 21 of the copper plates in pressure and quantity / time, then through transition openings 22, introduced uniformly across the width of the water tank (16) are to flow into the upper distribution space 23. From from here the water is fed to the mold circuit via an outlet line 24, which is adjustable in pressure and quantity, and the water treatment fed.
  • the partial picture a) gives the non-uniform temperature distribution 25 over the active mold width 26 between the narrow sides 27 again.
  • This partial increase can be caused by the temperature measurement 22.1 in the transition openings 22 when known the amount of water can be determined.
  • the absolute temperature in the Copper plate skin and thus the partial temperature profile 28 over the mold length while using the partial Heat flows 22.1 in the ranges 1/1 'to n / n' can be adjusted using determined at least one thermocouple 29 in the copper plate become.
  • the thermocouples of a breakdown protection can preferably be used here be used.
  • Figure 2 does the task again clear.
  • Figure 3 is the invention for a rectangular mold shown.
  • the partial mold a) shows the mold skin temperature of the casting mirror 8 in the areas next to the diving spout 30 or in the diving spout area 31 by reducing the partial amount of water in zones 32 1/1 'to n / n' of range 30 have been adjusted as well as the absolute Temperature level 8 has been set to a certain value.
  • the combination of the thermocouples 29, the water temperature measurement 22.1 and the partial amounts of water in zones 32 allow the Check the temperature distribution 25 over the mold width and their absolute height.
  • the amounts of water in the respective water zones 32 can, for. B. by a slide plate 33 - Figure 3 b) - that a certain profile has the thermal profile with constant, partial water cooling corresponds and all the transition openings 22 in the upper Distribution room 23 of the water tank simultaneously detected, controlled become.
  • FIG. 4 shows the features of the invention in the case of a funnel mold, compared to the prior art in the left half of the sub-picture a).
  • the partial is exemplarily similar to that in FIG Water in the water zones 32 next to the immersion pouring area 30 below Consideration of the funnel 35 with its envelope 36 partially detected.
  • the water quantities can be controlled with the slide plate 33 or each transition opening 22 with a valve 34 be managed.
  • the advantage of the invention is again shown in FIG. 5 using the example of a Rectangular mold, compared with the prior art, shown.
  • the left partial image a) represents the temperature profile that arises 25 of the Cu plate skin temperature in the mold level 8 over the The width of the mold is shown.
  • the right part b) is the temperature profile 25 shown using the inventive features. It puts a constant temperature 8 in the mold level and at the same time a constant temperature field between the copper plate and the Strand shell 9 over the entire mold width. This can the absolute temperature level 38 simultaneously within certain limits to get voted.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
EP99104351A 1998-03-12 1999-03-04 Procédé et dispositif de contrôle du débit calorifique dans une lingotière de coulée continue lors de la coulée de brames Expired - Lifetime EP0943382B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19810672 1998-03-12
DE19810672A DE19810672B4 (de) 1998-03-12 1998-03-12 Verfahren und Stranggießkokille zum Erzeugen von Brammensträngen, insbesondere aus Stahl

Publications (2)

Publication Number Publication Date
EP0943382A1 true EP0943382A1 (fr) 1999-09-22
EP0943382B1 EP0943382B1 (fr) 2004-08-25

Family

ID=7860591

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99104351A Expired - Lifetime EP0943382B1 (fr) 1998-03-12 1999-03-04 Procédé et dispositif de contrôle du débit calorifique dans une lingotière de coulée continue lors de la coulée de brames

Country Status (3)

Country Link
EP (1) EP0943382B1 (fr)
AT (1) ATE274389T1 (fr)
DE (2) DE19810672B4 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1103323A2 (fr) * 1999-11-29 2001-05-30 SMS Demag AG Procédé et dispositif pour la coulée continue d'acier
EP1149648A1 (fr) * 2000-04-25 2001-10-31 SMS Demag AG Procédé et dispositif pour le contrôle thermique d'une lingotière de coulée continue
WO2002085555A2 (fr) * 2001-04-20 2002-10-31 Sms Demag Aktiengesellschaft Procede et dispositif de coulee continue de metal
US8162030B2 (en) 2008-06-25 2012-04-24 Sms Siemag Aktiengesellschaft Mold for casting metal
US20160082503A1 (en) * 2013-04-23 2016-03-24 Danieli & C. Officine Meccaniche Spa Apparatus for Continuous Casting
CN113351842A (zh) * 2021-05-19 2021-09-07 天津荣程联合钢铁集团有限公司 一种大断面板坯高效稳定的连铸生产工艺

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19956577A1 (de) 1999-11-25 2001-05-31 Sms Demag Ag Verfahren zum Stranggießen von Brammen, insbesondere von Dünnbrammen, sowie eine Vorrichtung zu dessen Durchführung
DE102009023677A1 (de) 2009-06-03 2010-12-09 Egon Evertz Kg (Gmbh & Co.) Verfahren zur Regelung der Flüssigkeitskühlung von Stranggießkokillen
DE102011114556A1 (de) * 2011-09-30 2013-04-04 Egon Evertz Kg (Gmbh & Co.) Kupfer-Kokille oder Kupfer-Kokillenplatte zum Stranggießen von Metallen oder Metalllegierungen
DE102012224132B4 (de) 2012-12-21 2023-10-05 Primetals Technologies Austria GmbH Überwachungsverfahren für eine Stranggießkokille mit Aufbau einer Datenbank
DE102014112206A1 (de) * 2014-08-26 2016-03-03 Peter Valentin Verfahren zum Stranggießen eines Metalls, insbesondere eines Stahls, und Vorrichtung zum Stranggießen
CN110369687B (zh) * 2019-08-02 2024-04-30 中国重型机械研究院股份公司 一种在线实时修正板坯断面梯形缺陷的智能装置及方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1916503A1 (de) * 1968-06-05 1970-01-29 Wiener Schwachstromwerke Gmbh Vorrichtung zum Stranggiessen mit einer die Durchlaufkokille umgebenden Kuehlvorrichtung
DE2160206A1 (de) * 1971-12-04 1973-06-14 Fischer & Porter Gmbh Anordnung zur kuehlwassermengenregelung bei kokillen in stranggiessanlagen
DE2415224A1 (de) * 1973-03-30 1974-10-10 Concast Ag Verfahren und vorrichtung zum steuern der kuehlleistung von schmalseitenwaenden bei plattenkokillen beim stranggiessen
DE19529931C1 (de) * 1995-08-02 1997-04-03 Mannesmann Ag Plattenkokille zur Erzeugung von Strängen aus Stahl

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4117073A1 (de) * 1991-05-22 1992-11-26 Mannesmann Ag Temperaturmessung brammenkokille
DE19722877C2 (de) * 1997-05-31 1999-09-09 Schloemann Siemag Ag Flüssigkeitsgekühlte Stranggießkokille

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1916503A1 (de) * 1968-06-05 1970-01-29 Wiener Schwachstromwerke Gmbh Vorrichtung zum Stranggiessen mit einer die Durchlaufkokille umgebenden Kuehlvorrichtung
DE2160206A1 (de) * 1971-12-04 1973-06-14 Fischer & Porter Gmbh Anordnung zur kuehlwassermengenregelung bei kokillen in stranggiessanlagen
DE2415224A1 (de) * 1973-03-30 1974-10-10 Concast Ag Verfahren und vorrichtung zum steuern der kuehlleistung von schmalseitenwaenden bei plattenkokillen beim stranggiessen
DE19529931C1 (de) * 1995-08-02 1997-04-03 Mannesmann Ag Plattenkokille zur Erzeugung von Strängen aus Stahl

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1103323A2 (fr) * 1999-11-29 2001-05-30 SMS Demag AG Procédé et dispositif pour la coulée continue d'acier
EP1103323A3 (fr) * 1999-11-29 2001-09-19 SMS Demag AG Procédé et dispositif pour la coulée continue d'acier
EP1149648A1 (fr) * 2000-04-25 2001-10-31 SMS Demag AG Procédé et dispositif pour le contrôle thermique d'une lingotière de coulée continue
WO2002085555A2 (fr) * 2001-04-20 2002-10-31 Sms Demag Aktiengesellschaft Procede et dispositif de coulee continue de metal
WO2002085555A3 (fr) * 2001-04-20 2003-02-13 Sms Demag Ag Procede et dispositif de coulee continue de metal
US8162030B2 (en) 2008-06-25 2012-04-24 Sms Siemag Aktiengesellschaft Mold for casting metal
US20160082503A1 (en) * 2013-04-23 2016-03-24 Danieli & C. Officine Meccaniche Spa Apparatus for Continuous Casting
CN113351842A (zh) * 2021-05-19 2021-09-07 天津荣程联合钢铁集团有限公司 一种大断面板坯高效稳定的连铸生产工艺

Also Published As

Publication number Publication date
EP0943382B1 (fr) 2004-08-25
DE59910316D1 (de) 2004-09-30
ATE274389T1 (de) 2004-09-15
DE19810672A1 (de) 1999-09-16
DE19810672B4 (de) 2006-02-09

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