EP1474252A1 - 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 stranggiessmaschineInfo
- Publication number
- EP1474252A1 EP1474252A1 EP03704481A EP03704481A EP1474252A1 EP 1474252 A1 EP1474252 A1 EP 1474252A1 EP 03704481 A EP03704481 A EP 03704481A EP 03704481 A EP03704481 A EP 03704481A EP 1474252 A1 EP1474252 A1 EP 1474252A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- casting
- strand
- rolling
- continuous
- 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.)
- Granted
Links
- 238000005266 casting Methods 0.000 title claims abstract description 54
- 238000005096 rolling process Methods 0.000 title claims abstract description 44
- 238000009749 continuous casting Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000002184 metal Substances 0.000 title claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 7
- 239000010959 steel Substances 0.000 title claims abstract description 7
- 238000005452 bending Methods 0.000 claims abstract description 17
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 238000005520 cutting process Methods 0.000 claims description 7
- 238000007711 solidification Methods 0.000 claims description 5
- 230000008023 solidification Effects 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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
- B22D11/1226—Accessories for subsequent treating or working cast stock in situ for straightening strands
-
- 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
-
- 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 the continuous rolling of a metal strand dimensioned in cross section as a thin slab and produced at the casting speed, in particular a steel strand which is bent, straightened in the cooling state, straightened, cross-divided as required and introduced into a first rolling stand for rolling after comparing the temperature and relates to an associated one continuous casting machine.
- Such a method is used for so-called thin slabs, the cast thickness of which is approximately 50-90 mm and which are rolled out into strips.
- energy and labor can be saved to a considerable extent.
- Two different methods are preferably used for this, but they want to achieve the same result.
- a thin slab of 90 mm is cast and reduced to a thickness of 15 mm in several rolling stages.
- the cooling that occurs during the thickness reduction is compensated for by a correspondingly long induction heating station.
- the thin slab is then wound up and placed in a warming chamber.
- a coil can then be unwound and rolled in a hot rolling mill.
- a funnel mold is used, which forms a thin slab approx. 50 mm thick.
- the end 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 a homogenization of the slab temperature in a compensation furnace.
- a temporary standstill of the rolling mill is compensated for by the leveling furnace, in which the individual lengths remain.
- the slabs can move at a higher speed than the casting speed so that there are gaps between the slabs.
- an additional furnace length is provided as a buffer section.
- the need is e.g. determined by the roller service life or, if the casting speed differs from the rolling speed, from the furnace length (so-called semi-endless rolling).
- the casting machine must be designed in accordance with the rolling principle. Later changes - such as a change to continuous rolling - otherwise large conversions on the casting machine up to the foundation of the plant.
- the invention has for its object to design the continuous casting plant from the beginning so that the rolling process can be changed even later.
- the aim is to enable continuous rolling later with the existing continuous casting machine.
- the object is achieved according to the invention in that, with the support of a vertically cast and solidifying casting strand with a guide length matched to the casting speed, the casting strand is bent in one or more sections and in a loop supported from below in a directional driver arranged approximately at the loop length the cross dividing is performed.
- the advantage of such a loop is a buffer, due to which speed differences between continuous casting and rolling can be compensated for in continuous rolling. Provisions have been made in the vertical strand guide that the strand support can be extended for higher casting speeds by adding a segment.
- the loop can be monitored. According to further features, in view of the larger support length, casting speeds of approx. 8 to 12 m / min can be used.
- the casting strand is bent in the loop outlet. As a result, a different sag of the sling is taken into account due to a changing insertion angle.
- the thin slab is pierced with a thickness of approximately 50 mm.
- endless rolling can also be practiced in such a way that with a casting thickness greater than 50 mm, e.g. 60 to 70 mm, via an LCR (Liquid Core Reduction) the desired roll thickness is reduced to such an extent that the solidification in the existing strand support is ended without extension.
- LCR Liquid Core Reduction
- the associated continuous casting machine which is connected upstream of a rolling train during continuous rolling and on which a metal, in particular steel strand, dimensioned as a thin slab, can be cast, with a vertical strand support which is adjusted to the casting speed and to which at least one bending driver, a straightening driver, is provided , connecting a cross-cutting device, a continuous furnace and the first rolling stand is designed for continuous rolling in that between the bending driver and the straightening driver there is a free space that extends downward from zero level, in which a low position for a maximum loop of the casting Strands provided lifting and lowering roller section is arranged.
- the continuous casting mold used is a CSP funnel mold.
- the continuous casting device can be prepared for higher casting speeds in that at least one further support segment can be installed as the casting speed increases.
- the bending driver is initially arranged on a separate support structure.
- the start-up line system can be used with existing systems. With vertical casting machines, it is advantageous that a starting strand can be conveyed vertically downwards.
- start-up line can be extended upwards to zero level behind the directional driver.
- Auxiliary roller table is provided for the start of the strand and the start-up strand head.
- Fig. 2 is a partial view of a vertical continuous casting machine with a short
- FIG. 3 the same partial view for endless operation, with extended strand guidance and the driver on the foundation.
- the continuous casting machine 1 is a vertical casting device, from which the casting strand 2 is withdrawn vertically from the continuous casting mold (not shown) and is completely cooled in a strand support 3 between a number of strand support roller pairs 3a, the casting strand 1 solidifying.
- Driving force is transmitted to the casting strand by at least two pull-out roller pairs 3b.
- the support roller 5 is the counter roller and support during decoupling and later the support or unwinding point of the cast slab 2 in the sheet.
- a free space 10 is formed in the foundation.
- the cast slab 2 forms a loop 11 during continuous rolling in order to enable the speed to be compensated for between the casting and the rolling speed.
- the sling 11 is supported by means of a roller section 12 which can be raised and lowered.
- a further support segment 13 has been installed at 8 to 12 m / min.
- the bending driver 3b, 4 is first placed on a special support structure 14.
- the tried-and-tested starting line 15 is passed vertically past the bending roller 5, driven and held out of the casting line by starting line drive rollers 18 and by starting line guides 19 and 20 (FIG. 2).
- the strand support 3 is used for a current casting speed of e.g. 6 m / min on e.g. 10 m high.
- the adjoining bending driver 4 stands on the support structure 14 together with the pull-out roller pairs 3b.
- a further support segment 13 is installed in order 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 can be seen in FIG. 3.
- the directional driver 6 is moved from the dashed position 17 (FIG. 1) to the cross-section device 7. This creates the space for the loop 11, on the basis of which the difference in speed between casting and rolling can be compensated.
- a flame cutting device 16 for an emergency cut can be arranged below the pull-out roller pairs 3b in the area of the bending driver 4.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Continuous Casting (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
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 |
DE10206243 | 2002-02-15 | ||
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 true EP1474252A1 (de) | 2004-11-10 |
EP1474252B1 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 (de) |
EP (1) | EP1474252B1 (de) |
JP (1) | JP4447922B2 (de) |
KR (1) | KR100971901B1 (de) |
CN (1) | CN1283379C (de) |
AT (1) | ATE355138T1 (de) |
AU (1) | AU2003206789A1 (de) |
CA (1) | CA2474973C (de) |
DE (2) | DE10206243A1 (de) |
ES (1) | ES2280727T3 (de) |
RU (1) | RU2310529C2 (de) |
UA (1) | UA84128C2 (de) |
WO (1) | WO2003068425A1 (de) |
ZA (1) | ZA200404046B (de) |
Families Citing this family (10)
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 |
US20120024434A1 (en) * | 2008-12-09 | 2012-02-02 | Rolf Franz | Method for producing strips of metal, and production line for performing the method |
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)
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 |
-
2002
- 2002-02-15 DE DE10206243A patent/DE10206243A1/de not_active Withdrawn
-
2003
- 2003-01-28 CN CNB038038803A patent/CN1283379C/zh not_active Expired - Fee Related
- 2003-01-28 AT AT03704481T patent/ATE355138T1/de not_active IP Right Cessation
- 2003-01-28 AU AU2003206789A patent/AU2003206789A1/en not_active Abandoned
- 2003-01-28 KR KR1020047008396A patent/KR100971901B1/ko not_active IP Right Cessation
- 2003-01-28 DE DE50306657T patent/DE50306657D1/de not_active Expired - Lifetime
- 2003-01-28 US US10/503,873 patent/US20050167076A1/en not_active Abandoned
- 2003-01-28 EP EP03704481A patent/EP1474252B1/de not_active Expired - Lifetime
- 2003-01-28 ES ES03704481T patent/ES2280727T3/es not_active Expired - Lifetime
- 2003-01-28 RU RU2004127595/02A patent/RU2310529C2/ru not_active IP Right Cessation
- 2003-01-28 UA UA20040907497A patent/UA84128C2/ru unknown
- 2003-01-28 JP JP2003567601A patent/JP4447922B2/ja not_active Expired - Fee Related
- 2003-01-28 CA CA2474973A patent/CA2474973C/en not_active Expired - Fee Related
- 2003-01-28 WO PCT/EP2003/000831 patent/WO2003068425A1/de active IP Right Grant
-
2004
- 2004-05-25 ZA ZA200404046A patent/ZA200404046B/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO03068425A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20050167076A1 (en) | 2005-08-04 |
RU2310529C2 (ru) | 2007-11-20 |
ATE355138T1 (de) | 2006-03-15 |
RU2004127595A (ru) | 2005-04-20 |
JP4447922B2 (ja) | 2010-04-07 |
UA84128C2 (ru) | 2008-09-25 |
KR20040076862A (ko) | 2004-09-03 |
CA2474973A1 (en) | 2003-08-21 |
ZA200404046B (en) | 2005-04-07 |
ES2280727T3 (es) | 2007-09-16 |
CN1633341A (zh) | 2005-06-29 |
KR100971901B1 (ko) | 2010-07-23 |
CN1283379C (zh) | 2006-11-08 |
DE50306657D1 (de) | 2007-04-12 |
WO2003068425A1 (de) | 2003-08-21 |
AU2003206789A1 (en) | 2003-09-04 |
DE10206243A1 (de) | 2003-08-28 |
JP2005522327A (ja) | 2005-07-28 |
EP1474252B1 (de) | 2007-02-28 |
CA2474973C (en) | 2010-09-21 |
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