EP1474252B1 - Verfahren zum endloswalzen eines im querschnitt als dünnbramme bemessenen, mit giessgeschwindigkeit erzeugten metallstrangs, insbesondere eines stahlstrangs, und zugehörige stranggiessmaschine - Google Patents

Verfahren zum endloswalzen eines im querschnitt als dünnbramme bemessenen, mit giessgeschwindigkeit erzeugten metallstrangs, insbesondere eines stahlstrangs, und zugehörige stranggiessmaschine Download PDF

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Publication number
EP1474252B1
EP1474252B1 EP03704481A EP03704481A EP1474252B1 EP 1474252 B1 EP1474252 B1 EP 1474252B1 EP 03704481 A EP03704481 A EP 03704481A EP 03704481 A EP03704481 A EP 03704481A EP 1474252 B1 EP1474252 B1 EP 1474252B1
Authority
EP
European Patent Office
Prior art keywords
rolling
casting machine
continuous casting
straightening
driver
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
EP03704481A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1474252A1 (de
Inventor
Wolfgang Henning
Karl Rittner
Sitki Altuntop
Manfred Kolakowski
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 EP1474252A1 publication Critical patent/EP1474252A1/de
Application granted granted Critical
Publication of EP1474252B1 publication Critical patent/EP1474252B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • B22D11/1226—Accessories for subsequent treating or working cast stock in situ for straightening 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B15/0007—Cutting or shearing the product
    • B21B2015/0014—Cutting or shearing the product transversely to the rolling direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2201/00—Special rolling modes
    • B21B2201/14—Soft reduction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B41/00—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters
    • B21B41/08—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters without overall change in the general direction of movement of the work

Definitions

  • the invention relates to a method for continuous rolling of a dimensioned in thin-slab, casting speed produced metal strand, in particular a steel strand which is bent in the cooling state, directed, cross-divided as needed and introduced after uniformity of the temperature in a first roll stand for rolling and relates to an associated Continuous casting machine (see eg JP-A 010 83353).
  • Such a method is used for so-called thin slabs whose cast thickness is about 50-90 mm and which are rolled out into strips.
  • energy and labor can be saved to a considerable extent.
  • two different methods are used, which, however, want to achieve the same result.
  • a thin slab of 90 mm is cast and reduced in several stages to a thickness of 15 mm.
  • the cooling occurring during the thickness reduction is compensated by a correspondingly long induction heating station again.
  • the thin slab is wound up and placed in a holding chamber. Thereafter, a roll can be unwound and rolled again in a hot rolling mill.
  • a funnel mold which forms a thin slab of about 50 mm thickness.
  • the outlet of the so-called CSP process represents a cross-cutting device in which cast slabs are cut to length, after which the individual lengths are brought to homogenization of the slab temperature in a compensation furnace.
  • a temporary standstill of the rolling train is compensated by the equalizing furnace in which the individual lengths remain.
  • the slabs can with higher speed than the casting speed are moved, so that there are gaps between the slabs.
  • an additional furnace length is provided as a buffer line. At a standstill of the rolling mill, the casting machine can continue to work until these spaces are filled up.
  • the need is e.g. determined by the roller life or at different from the rolling speed casting speed of the furnace length (so-called semi-endless rollers).
  • the design of the casting machine must be matched to the rolling principle. Later changes, such as a change to continuous rolling - otherwise cause large conversions to the foundations of the plant at the casting machine.
  • the invention has for its object to design the continuous casting plant from the beginning so that even later, the rolling process can be changed.
  • the aim is to make it possible to use the existing continuous casting machine later also the endless rolling.
  • the above object is achieved in that under support of a cast vertical and solidifying casting strand with a matched to the casting speed guide length, the casting strand in one or more sections and directed in a supported from below with a raised and lowered roll section loop in an approximately Guideway remotely located around the loop length is guided before the cross cutting.
  • the advantage of such a sling is a buffer which, in continuous rolling, compensates for speed differences between continuous casting and rolling. Provision has been made in the vertical strand guide that by adding a segment, the strand support can be extended for higher casting speeds.
  • the sling can be monitored.
  • casting speeds of about 8 to 12 m / min can be poured in view of the larger support length.
  • a thin slab having a solidification thickness of 50 to 70 mm can be produced.
  • the cast strand is bent in the outlet of the loop. As a result, due to a changing insertion angle, a different slack of the sling is taken into account.
  • the thin slab is pierced with a thickness of about 50 mm.
  • the continuous rolling may also be practiced so that if the casting thickness is greater than 50 mm, e.g. 60 to 70 mm, via an LCR (Liquid Core Reduction) the desired rolling thickness is reduced so far that the solidification in the existing strand support is terminated without extension. Also in this case, provision can be made for a corresponding speed-compensation loop / roll.
  • LCR Liquid Core Reduction
  • the associated continuous casting machine which is connected upstream of a rolling train during continuous rolling and on the cross-section as a thin slab sized metal, especially steel strand is pourable, with a vertical, parked on the casting speed strand support is provided to which at least one bending driver, a directional driver , connecting a cross-cutting device, a continuous furnace and the first rolling stand, is designed for endless rolling, in that between the bending driver and the straightening a free space extending from approximately zero level is provided, in which a maximum for a maximum sling of the cast strand provided raised and lowered roller portion is arranged.
  • the continuous casting mold used is a CSP funnel mold.
  • the continuous casting apparatus can be prepared for higher casting speeds by virtue of the fact that, with increasing casting speed, at least one further support segment can be installed.
  • the bending driver is initially arranged on a separate support structure.
  • the starter train system can be used with existing systems. Thus, in vertical casting machines, it is advantageous that a starter strand can be conveyed vertically downwards.
  • a transverse movable auxiliary roller table for the strand beginning and the starter strand head is provided.
  • the continuous casting machine 1 is a vertical casting apparatus, from which the casting strand 2 is withdrawn vertically from the continuous casting mold (not shown) and completely cooled in a strand support 3 between a series of strand support roll pairs 3a, whereby the casting strand 1 solidifies.
  • driving force is transmitted to the cast strand by at least two pull-out roller pairs 3b.
  • Underneath the pull-out roller pairs 3b is a bending roller 4, which bends the cast slab 2 out of the vertical, thereby decoupling the slab 2 and the starting strand 15.
  • the support roller 5 is Jacobhalterolle and support during decoupling and later supporting or unwinding of the cast slab 2 in the bow.
  • a free space 10 is formed in the foundation.
  • a straightening 6 which receives the casting strand 2 and straightens horizontally.
  • a cross-cutting device 7 which, as shown, may consist of a pair of scissors 7a, and then migrate the cast slab strand 2 or cast partial lengths in a continuous furnace 8 for homogenizing the temperature and for adjusting the rolling temperature.
  • the straightening 6 stands for the endless rolling at the zero level 9, on which also the straightening 6 stands for single slab rolling, position 17.
  • the straightening driver 6 can be displaced to provide the clearance 10 for the sling 11.
  • the cast slab 2 forms a loop 11 during endless rolling in order to enable the speed compensation between the casting and the rolling speed.
  • the loop 11 is supported by means of a raised and lowered roller portion 12.
  • another support segment 13 has been installed.
  • the bending driver 3b, 4 is first placed on a special support structure 14.
  • the Anfahrstrang 15 in a proven design perpendicular to the bending roller 5 over, driven and held by Anfahrstrang drive rollers 18 and by Anfahrstrang guides 19 and 20 led out of the casting line (Fig. 2).
  • the strand support 3 is used for a currently common casting speed of e.g. 6 m / min to e.g. 10 m height.
  • the subsequent bending driver 4 is together with the pullout roller pairs 3b on the support structure 14.
  • another support segment 13 is installed to drive higher casting speeds.
  • the bending driver 3b, 4, the support roller 5 and the cold strand driver system are laid down and then rest on the foundation, as shown in Fig. 3 can be seen.
  • the straightening driver 6 is moved from the dashed position 17 (FIG. 1) to the transverse dividing device 7. This creates the space for the loop 11, due to which the speed difference between casting and rolling can be compensated.
  • a flame cutting device 16 for an emergency cut can be arranged in the region of the bending driver 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Continuous Casting (AREA)
EP03704481A 2002-02-15 2003-01-28 Verfahren zum endloswalzen eines im querschnitt als dünnbramme bemessenen, mit giessgeschwindigkeit erzeugten metallstrangs, insbesondere eines stahlstrangs, und zugehörige stranggiessmaschine Expired - Lifetime EP1474252B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10206243 2002-02-15
DE10206243A DE10206243A1 (de) 2002-02-15 2002-02-15 Verfahren zum Endloswalzen eines im Querschnitt als Dünnbramme bemessenen, mit Gießgeschwindigkeit erzeugten Metallstrangs, insbesondere eines Stahlstrangs, und zugehörige Stranggießmaschine
PCT/EP2003/000831 WO2003068425A1 (de) 2002-02-15 2003-01-28 Verfahren zum endloswalzen eines im querschnitt als dünnbramme bemessenen, mit giessgeschwindigkeit erzeugten metallstrangs, insbesondere eines stahlstrangs, und zugehörige stranggiessmaschine

Publications (2)

Publication Number Publication Date
EP1474252A1 EP1474252A1 (de) 2004-11-10
EP1474252B1 true EP1474252B1 (de) 2007-02-28

Family

ID=27634967

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03704481A Expired - Lifetime EP1474252B1 (de) 2002-02-15 2003-01-28 Verfahren zum endloswalzen eines im querschnitt als dünnbramme bemessenen, mit giessgeschwindigkeit erzeugten metallstrangs, insbesondere eines stahlstrangs, und zugehörige stranggiessmaschine

Country Status (14)

Country Link
US (1) US20050167076A1 (ko)
EP (1) EP1474252B1 (ko)
JP (1) JP4447922B2 (ko)
KR (1) KR100971901B1 (ko)
CN (1) CN1283379C (ko)
AT (1) ATE355138T1 (ko)
AU (1) AU2003206789A1 (ko)
CA (1) CA2474973C (ko)
DE (2) DE10206243A1 (ko)
ES (1) ES2280727T3 (ko)
RU (1) RU2310529C2 (ko)
UA (1) UA84128C2 (ko)
WO (1) WO2003068425A1 (ko)
ZA (1) ZA200404046B (ko)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRM20050523A1 (it) * 2005-10-21 2007-04-22 Danieli Off Mecc Processo e impianto per la produzione di nastro metallico.
DE102007005778A1 (de) * 2006-03-09 2007-09-13 Sms Demag Ag Stranggießanlage und Verfahren zum Betreiben einer Stranggießanlage
ITRM20070150A1 (it) * 2007-03-21 2008-09-22 Danieli Off Mecc Processo e impianto per la produzione di nastro metallico
RU2481903C2 (ru) * 2008-12-09 2013-05-20 Смс Зимаг Аг Способ изготовления полос из металла и производственная установка для осуществления этого способа
DE102010050647A1 (de) * 2009-11-21 2011-05-26 Sms Siemag Aktiengesellschaft Anlage und Verfahren zum Gießen und Walzen von Metall
AT509831B1 (de) * 2010-04-30 2012-03-15 Siemens Vai Metals Tech Gmbh Verfahren und vorrichtung zur minimierung des bandzugs eines walzgutes
DE102010028922A1 (de) 2010-05-12 2011-11-17 Siemens Aktiengesellschaft Verfahren zur Einstellung einer Zugspannung für ein eine Anlage durchlaufendes Metallband, Steuer- und/oder Regeleinrichtung für eine Metallband verarbeitende Anlage, und Anlage zum Verarbeiten von Metallband
DE102012201395A1 (de) * 2012-02-01 2013-08-01 Sms Siemag Ag Verfahren zum Stranggießen eines metallischen Stranges in einer Stranggießanlage und Stranggießanlage
DE102012013425A1 (de) * 2012-07-03 2014-01-09 Salzgitter Flachstahl Gmbh Kontinuierlich arbeitende Bandgieß- und Walzanlage
AT522265B1 (de) * 2019-03-06 2021-12-15 Primetals Technologies Austria GmbH Umbau einer stranggiessanlage für knüppel- oder vorblockstränge

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861456A (en) * 1971-08-24 1975-01-21 United States Steel Corp Mechanism for controlling forces on a strand as it solidifies
JPS58173005A (ja) * 1982-04-02 1983-10-11 Kawasaki Steel Corp エンドレスロ−リング方法
JPS63309306A (ja) * 1987-06-11 1988-12-16 Hitachi Ltd 連続鋳造鋳片の圧延設備及び圧延方法
JPS6483353A (en) * 1987-09-24 1989-03-29 Hitachi Ltd Passing through apparatus for thin cast slab
AT392029B (de) * 1988-02-01 1991-01-10 Hulek Anton Stranggiessanlage zum stranggiessen von stahl
US5503217A (en) * 1990-07-23 1996-04-02 Davy Mckee (Sheffield) Limited Method of manufacturing metal strip
DE19731124C1 (de) * 1997-07-19 1999-01-21 Schloemann Siemag Ag Verfahren und Vorrichtung zur Erzeugung von beschichtetem Warm- und Kaltband
JP4542247B2 (ja) * 2000-08-08 2010-09-08 キャストリップ・リミテッド・ライアビリティ・カンパニー ストリップ連続鋳造装置及びその使用方法

Also Published As

Publication number Publication date
KR20040076862A (ko) 2004-09-03
KR100971901B1 (ko) 2010-07-23
AU2003206789A1 (en) 2003-09-04
CN1633341A (zh) 2005-06-29
CA2474973C (en) 2010-09-21
ATE355138T1 (de) 2006-03-15
RU2310529C2 (ru) 2007-11-20
DE10206243A1 (de) 2003-08-28
CN1283379C (zh) 2006-11-08
ES2280727T3 (es) 2007-09-16
RU2004127595A (ru) 2005-04-20
DE50306657D1 (de) 2007-04-12
US20050167076A1 (en) 2005-08-04
WO2003068425A1 (de) 2003-08-21
JP2005522327A (ja) 2005-07-28
JP4447922B2 (ja) 2010-04-07
ZA200404046B (en) 2005-04-07
CA2474973A1 (en) 2003-08-21
EP1474252A1 (de) 2004-11-10
UA84128C2 (ru) 2008-09-25

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