EP0841994B1 - Verfahren zum betreiben einer stranggiessanlage - Google Patents

Verfahren zum betreiben einer stranggiessanlage Download PDF

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Publication number
EP0841994B1
EP0841994B1 EP96925644A EP96925644A EP0841994B1 EP 0841994 B1 EP0841994 B1 EP 0841994B1 EP 96925644 A EP96925644 A EP 96925644A EP 96925644 A EP96925644 A EP 96925644A EP 0841994 B1 EP0841994 B1 EP 0841994B1
Authority
EP
European Patent Office
Prior art keywords
slab
continuous casting
furnace
casting machine
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.)
Expired - Lifetime
Application number
EP96925644A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0841994A1 (de
Inventor
Fritz-Peter Pleschiutschnigg
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 EP0841994A1 publication Critical patent/EP0841994A1/de
Application granted granted Critical
Publication of EP0841994B1 publication Critical patent/EP0841994B1/de
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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • 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
    • 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
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/30—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control
    • B21B37/34—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control by hydraulic expansion of the rolls
    • 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets

Definitions

  • the invention relates to a method for operating a continuous caster with a stationary continuous casting machine that has a roller table with a Compensating oven is connected.
  • EP 0 264 459 B1 describes a process for producing hot-rolled steel strip Continuously cast slabs known in which the solidified cast strand in sections the same length is separated and these sections are successively introduced into an oven in which they are saved over a period of time in order to Roller table to be handed over to a rolling finishing train.
  • the liquefied material for Formation of the cast strand is cooled in the sheet guide of the continuous casting machine.
  • the exit temperature of the cast strand at the end of the sheet guide is still above 1150 ° C.
  • On the way from the mouth of the continuous casting machine to the entrance of the The cast furnace cools down and runs from the roller table at a temperature of about 1150 ° C on a runway located in the storage furnace.
  • the invention has set itself the goal of creating a method with which simple Average the casting parameters of a given production chain, consisting of Continuous caster, leveling furnace and rolling mill, are changeable while doing the Casting performance is retained at least.
  • the invention is based on the finding that when the continuous casting stage is combined with the Rolling stage in billet, slab and especially in Thin slab pouring the energy content of the strand directly behind the Continuous caster following temperature compensation furnace the roller hearth or Cross conveyor furnace is of great importance. Surprisingly, it turns out that the Energy content of the slab when entering the equalization furnace as a guide for the Operation of the entire system can be used.
  • the energy content of the Slab entering the compensating furnace to the desired rolling temperature of the generating hot strip set.
  • the oven can be operated so that the Strang no energy is to be supplied, but that it only to balance the Slab temperature is used.
  • the casting parameters set in such a way that the slab when the Compensating furnace of the desired rolling temperature of the hot strip to be produced corresponds.
  • the system now allows casting performance with constant casting thickness and to increase the maximum casting speed and the heat content of the Control slab entering slab.
  • the parameters are like this set that the swamp tip is always in the mouth area of the Belt casting machine is located.
  • active Cooling can be specified or removed by a heat Insulating device largely prevents heat radiation.
  • a metallurgical length of 9.3 m is provided.
  • Will the Solidification thickness from 60 to 50 mm by casting rolls or by converting the Continuous casting machine is reduced while maintaining the casting speed and taking into account that the radiation losses depending on the decreasing slab and at the same time the solidification time of a strand with decreasing thickness decreases with the square of half the thickness Production output reduced.
  • This temperature increase can lead to the slab in the area of Roller table in front of the equalization furnace by cooling to the desired one Slab temperature must be set at the furnace inlet.
  • FIG. 1 shows a continuous casting machine 10 with a stationary mold 11.
  • Strand S extends the swamp tip F to the mouth 13 of the Continuous casting machine 10.
  • the continuous casting machine 10 is followed by a roller table 21, which is one if possible short connection, for example a length of 10 m, to the equalization furnace 50 manufactures.
  • a transverse transport oven 51 is provided and in A roller hearth furnace 52 is provided in the lower part of the image.
  • the continuous casting machine 10 has a metallurgical length of 9.3 m
  • Roller table 21 has a length of 10 m
  • the slabs are by a Cross separator 22 separated to a length of about 43 m, so that the Transverse furnace 51 a length of around 45 m and the roller hearth furnace 52 a 150 m long.
  • a conventional rolling mill 60 is connected to the equalizing furnace 51 or 52 Production of hot strips of 1 mm thickness. For example, from a one. or two-stand preliminary stage with subsequent winding station and finishing train consist.
  • the slab thickness is reduced to 50 mm, the following situations arise: With the usual increase in the casting speed from 5 to 6 m / min and constant casting performance, the surface temperature of the slab drops and it enters the compensating furnace at only 1067 ° C. (point g)).
  • the strand can be isolated in the area of the roller table and thus the temperature reduction can be reduced (see arrow in direction III). In this case, this leads to a constant production quantity (see the straight line through points a) and k)).
  • the casting speed is increased more than with an increase in would correspond to the constant thickness of the slab, approximately to its maximum value brought and taking into account the setting of the swamp tip at the end of the Machine, so a temperature increase occurs, in the present case 1150 ° C expected when entering the equalization furnace (point h)). Should this temperature for the If the desired rolling process is too high, the strand can be heated by cooling be withdrawn.
  • the point i) shows the expected capacity temperature increases at a Slab thickness of 55 mm and a possible casting speed of 6 m / min.
  • the straight lines D show the conditions for the respective slab thicknesses, the Index indicates the thickness D in mm.
  • the circled values show the relative casting performance. For example, in Point k) a performance increase related to the casting performance in point a) by the Factor 1.2 possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Metal Rolling (AREA)
  • Continuous Casting (AREA)
  • Casting Devices For Molds (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Manufacturing And Processing Devices For Dough (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Supports For Plants (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Pinball Game Machines (AREA)
  • Body Structure For Vehicles (AREA)
  • Details Of Cameras Including Film Mechanisms (AREA)
EP96925644A 1995-07-31 1996-07-26 Verfahren zum betreiben einer stranggiessanlage Expired - Lifetime EP0841994B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19529046 1995-07-31
DE19529046A DE19529046A1 (de) 1995-07-31 1995-07-31 Verfahren und Einrichtung zum Betreiben einer Stranggießanlage
PCT/DE1996/001441 WO1997004891A1 (de) 1995-07-31 1996-07-26 Verfahren und einrichtung zum betreiben einer stranggiessanlage

Publications (2)

Publication Number Publication Date
EP0841994A1 EP0841994A1 (de) 1998-05-20
EP0841994B1 true EP0841994B1 (de) 2001-08-29

Family

ID=7768930

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96925644A Expired - Lifetime EP0841994B1 (de) 1995-07-31 1996-07-26 Verfahren zum betreiben einer stranggiessanlage

Country Status (15)

Country Link
US (1) US5915457A (ja)
EP (1) EP0841994B1 (ja)
JP (1) JP3043075B2 (ja)
KR (1) KR100304759B1 (ja)
CN (1) CN1132707C (ja)
AT (1) ATE204792T1 (ja)
AU (1) AU715643B2 (ja)
BR (1) BR9609824A (ja)
CA (1) CA2228445C (ja)
DE (4) DE19529046A1 (ja)
DK (1) DK0841994T3 (ja)
ES (1) ES2159750T3 (ja)
NZ (1) NZ313594A (ja)
RU (1) RU2138345C1 (ja)
WO (1) WO1997004891A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008055650A1 (de) 2008-10-29 2010-05-06 Sms Siemag Aktiengesellschaft Verfahren zur Minimierung des Energiebedarfs und des CO2 Ausstoßes bei Dünnbrammenanlagen

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3726506B2 (ja) * 1998-05-28 2005-12-14 Ｊｆｅスチール株式会社 鋼片の水冷方法
AU4596899A (en) * 1998-07-10 2000-02-01 Ipsco Inc. Method and apparatus for producing martensite- or bainite-rich steel using steckel mill and controlled cooling
EP1066898B1 (de) * 1999-07-06 2005-03-09 SMS Demag AG Verfahren zur Schmelzenführung in einer Stranggiessmaschine
DE10357363B4 (de) * 2003-12-09 2006-02-09 Ispat Industries Ltd., Taluka-Pen Verfahren und Anlage zum Gießen und unmittelbar anschließenden Walzen von Gießsträngen aus Metall, insbesondere aus Stahlwerkstoffen, vorzugsweise Dünnsträngen
WO2007061412A1 (en) * 2005-11-25 2007-05-31 Cache Folkman Cooling steel slabs to prevent surface cracking
IT1400913B1 (it) * 2010-06-24 2013-07-02 Danieli Off Mecc Procedimento e impianto di colata e laminazione per realizzare prodotti laminati metallici lunghi
ES2734851T3 (es) * 2010-07-26 2019-12-12 Primetals Tech Italy S R L Aparato y método para la producción de productos alargados de metal
AT512399B1 (de) * 2012-09-10 2013-08-15 Siemens Vai Metals Tech Gmbh Verfahren zum Herstellen eines mikrolegierten Röhrenstahls in einer Gieß-Walz-Verbundanlage und mikrolegierter Röhrenstahl
CN103302262B (zh) * 2013-06-25 2015-05-27 济钢集团有限公司 一种连铸板坯表面淬火工艺及所用装置
CN110303047B (zh) * 2019-07-08 2020-11-03 东北大学 一种连铸热芯轧制系统及方法
CN110681697A (zh) * 2019-09-20 2020-01-14 中冶赛迪工程技术股份有限公司 一种适应直接轧制的长材生产线工艺设备
DE102020205077A1 (de) * 2019-09-23 2021-03-25 Sms Group Gmbh Vorrichtung und Verfahren zur Herstellung und Weiterbehandlung von Brammen
CN114654175B (zh) * 2022-04-20 2023-09-19 浙江齐飞铝业有限公司 一种铝合金成型自动加工系统
CN115041655A (zh) * 2022-07-04 2022-09-13 重庆钢铁股份有限公司 一种防止高温下线铸坯弯曲的方法

Family Cites Families (15)

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Publication number Priority date Publication date Assignee Title
JPS5422777B2 (ja) * 1973-09-17 1979-08-09
JPS5918146B2 (ja) * 1978-06-29 1984-04-25 新日本製鐵株式会社 熱間圧延鋼材の製造方法
JPS5719144A (en) * 1980-07-10 1982-02-01 Nippon Steel Corp Conveying method for high-temperature ingot
JPS57127505A (en) * 1981-01-22 1982-08-07 Nippon Steel Corp Direct rolling manufacturing device for steel
JPS57202907A (en) * 1981-06-09 1982-12-13 Nippon Steel Corp Production of shape steel
JPH0620625B2 (ja) * 1985-09-17 1994-03-23 新日本製鐵株式会社 連続鋳造工程に於ける鋼スラブの温度調整方法
DE3823861A1 (de) * 1988-07-14 1990-01-18 Thyssen Stahl Ag Verfahren und anlage zum herstellen eines stahlbandes mit einer dicke von weniger als 10 mm
DE3839954A1 (de) * 1988-11-26 1990-05-31 Schloemann Siemag Ag Anlage zur herstellung von warmgewalztem stahlband
JP3152241B2 (ja) * 1990-06-12 2001-04-03 株式会社日立製作所 熱間薄板製造設備及び製造方法
AT398396B (de) * 1993-02-16 1994-11-25 Voest Alpine Ind Anlagen Verfahren zum herstellen eines bandes, vorstreifens oder einer bramme
ATE163370T1 (de) * 1993-05-17 1998-03-15 Danieli Off Mecc Produktionslinie zur herstellung von bändern und/oder blechen
EP0650790B2 (en) * 1993-10-29 2013-10-16 DANIELI & C. OFFICINE MECCANICHE S.p.A. Method for thermal surface treatment in a continuous casting machine
DE4402402B4 (de) * 1994-01-27 2004-05-13 Sms Demag Ag Verfahren zur Herstellung von warmgewalztem Stahlband aus stranggegossenem Vormaterial und Anlage zur Durchführung des Verfahrens
US5396695A (en) * 1994-03-22 1995-03-14 Danieli & C. Officine Meccaniche Spa Method of controlling a time period between continuously cast slabs entering a rolling stand
IT1280207B1 (it) * 1995-08-02 1998-01-05 Danieli Off Mecc Procedimento di colata continua per prodotti lunghi e relativa linea di colata continua

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008055650A1 (de) 2008-10-29 2010-05-06 Sms Siemag Aktiengesellschaft Verfahren zur Minimierung des Energiebedarfs und des CO2 Ausstoßes bei Dünnbrammenanlagen

Also Published As

Publication number Publication date
JPH11500360A (ja) 1999-01-12
AU6610796A (en) 1997-02-26
AU715643B2 (en) 2000-02-10
WO1997004891A1 (de) 1997-02-13
DE19680625D2 (de) 1998-07-23
RU2138345C1 (ru) 1999-09-27
EP0841994A1 (de) 1998-05-20
ES2159750T3 (es) 2001-10-16
KR19990036021A (ko) 1999-05-25
DE59607595D1 (de) 2001-10-04
US5915457A (en) 1999-06-29
BR9609824A (pt) 1999-07-06
JP3043075B2 (ja) 2000-05-22
CA2228445A1 (en) 1997-02-13
CN1192171A (zh) 1998-09-02
CA2228445C (en) 2001-09-04
DE19529046A1 (de) 1997-02-06
KR100304759B1 (ko) 2001-11-22
CN1132707C (zh) 2003-12-31
DK0841994T3 (da) 2001-10-08
NZ313594A (en) 1998-11-25
ATE204792T1 (de) 2001-09-15
DE19680625C1 (de) 2001-07-26

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