EP1474252B1 - Procede de laminage continu d'un boyau de metal, notamment d'un boyau d'acier, produit a une vitesse de coulee et dont la section est celle d'une fine brame, et machine de coulee continue correspondante - Google Patents
Procede de laminage continu d'un boyau de metal, notamment d'un boyau d'acier, produit a une vitesse de coulee et dont la section est celle d'une fine brame, et machine de coulee continue correspondante Download PDFInfo
- 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
Links
- 238000005266 casting Methods 0.000 title claims abstract description 41
- 238000005096 rolling process Methods 0.000 title claims abstract description 41
- 238000009749 continuous casting Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 6
- 239000010959 steel Substances 0.000 title claims abstract description 6
- 239000002184 metal Substances 0.000 title abstract description 6
- 238000005452 bending Methods 0.000 claims abstract description 17
- 238000005520 cutting process Methods 0.000 claims description 9
- 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
- 238000010276 construction Methods 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 3
- 239000007858 starting material Substances 0.000 description 4
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004519 manufacturing process 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
Images
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)
Claims (16)
- Procédé de laminage continu d'une barre de coulée dimensionnée dont la section transversale est celle d'une brame mince, coulée et se solidifiant à la verticale, à une vitesse de coulée (2), notamment d'une barre d'acier que l'on cintre (4), que l'on dresse (6), que l'on divise si besoin est à la transversale (7) à l'état de refroidissement, et que l'on introduit après homogénéisation de la température (8) dans une première cage de laminoir pour le laminage, caractérisé en ce que
sous appui avec une longueur de guidage adaptée à la vitesse de coulée, on cintre la barre de coulée (2) sur une ou sur plusieurs section(s) et en ce que dans une boucle soutenue par le dessous par un tronçon de cylindre (12) pouvant être relevé et abaissé, la barre est guidée avant sa division à la transversale dans le chassoir à dresser (6) disposé à distance de l'extrémité de la boucle. - Procédé selon la revendication 1,
caractérisé en ce que
on surveille la boucle (11) dans la ou les section(s) de dressage. - Procédé selon la revendication 1 ou 2,
caractérisé en ce que
on procède à la coulée à une vitesse de coulée de 8 à 12 m/minute. - Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que,
on créé une brame mince avec une épaisseur de solidification de 50 à 70 mm. - Procédé selon l'une quelconque des revendications 1 à 4,
caractérisé en ce que
on redresse la barre de coulée (2), à la sortie de la boucle (11). - Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce que,
lorsqu'on augmente la vitesse de coulée à la vitesse d'introduction du cylindre dans la première cage de laminoir, on perce la brame mince (2) avec une épaisseur d'environ 50 mm. - Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce que,
si l'épaisseur de coulée est supérieure à 50 mm, on réduit l'épaisseur de laminage souhaitée via une réduction du noyau liquide, jusqu'à ce que la solidification à coeur dans l'appui de barre (3) soit achevée. - Machine de coulée continue qui est montée en amont d'un train de laminoir, et sur laquelle on peut couler une barre de coulée (2) dont la section transversale est celle d'une brame mince, notamment une barre d'acier, un appui de barre (3) vertical, adapté à la vitesse de coulée étant prévu, auquel se raccorde au moins un chassoir à cintrer (4), un chassoir à dresser (6), un dispositif de division transversale (7), un four à passage continu (8) et la première cage de laminoir, caractérisée en ce que
entre le chassoir à cintrer (4) et le chassoir à dresser (6) on a prévu un espace libre (10), s'étendant environ du niveau zéro (9) vers le bas, dans lequel est disposé un tronçon de cylindre (12) pouvant être relevé et abaissé, prévu dans une position basse pour une boucle maximale (11) de la barre de coulée (2). - Machine de coulée continue selon la revendication 8,
caractérisée en ce que
on surveille la formation de la boucle (11) par le chassoir à dresser (6) et donc la compensation de vitesse de coulée/laminage. - Machine de coulée continue selon l'une quelconque des revendication 8 ou 9,
caractérisée en ce que
la lingotière de coulée continue utilisée est une lingotière CSP en forme d'entonnoir. - Machine de coulée continue selon l'une quelconque des revendications 8 à 10, caractérisée en ce que,
si la vitesse de coulée augmente, on peut intégrer au moins un segment d'appui (13) supplémentaire. - Machine de coulée continue selon l'une quelconque des revendications 8 à 11, caractérisée en ce que,
le chassoir à cintrer (4) est d'abord disposé sur une structure d'appui (14) séparée. - Machine de coulée continue selon l'une quelconque des revendications 8 à 12, caractérisée en ce que,
une fausse barre (15) peut être évacuée à la verticale vers le bas. - Machine de coulée continue selon l'une quelconque des revendications 8 à 12, caractérisée en ce que,
la fausse barre (15) peut être sortie vers le haut, au niveau zéro (9) derrière le chassoir à dresser (6). - Machine de coulée continue selon l'une quelconque des revendications 8 à 14, caractérisée en ce que,
sur le niveau zéro (9), on a prévu un train de rouleaux secondaire pour le début de la barre (15) et pour la tête de la fausse barre. - Machine de coulée continue selon l'une quelconque des revendications 8 à 15, caractérisée en ce que,
dans la zone du chassoir à cintrer (4), on a prévu un dispositif d'oxycoupage (16) déclenchable pour une coupe d'urgence.
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 (fr) | 2002-02-15 | 2003-01-28 | Procede de laminage continu d'un boyau de metal, notamment d'un boyau d'acier, produit a une vitesse de coulee et dont la section est celle d'une fine brame, et machine de coulee continue correspondante |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1474252A1 EP1474252A1 (fr) | 2004-11-10 |
EP1474252B1 true EP1474252B1 (fr) | 2007-02-28 |
Family
ID=27634967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03704481A Expired - Lifetime EP1474252B1 (fr) | 2002-02-15 | 2003-01-28 | Procede de laminage continu d'un boyau de metal, notamment d'un boyau d'acier, produit a une vitesse de coulee et dont la section est celle d'une fine brame, et machine de coulee continue correspondante |
Country Status (14)
Country | Link |
---|---|
US (1) | US20050167076A1 (fr) |
EP (1) | EP1474252B1 (fr) |
JP (1) | JP4447922B2 (fr) |
KR (1) | KR100971901B1 (fr) |
CN (1) | CN1283379C (fr) |
AT (1) | ATE355138T1 (fr) |
AU (1) | AU2003206789A1 (fr) |
CA (1) | CA2474973C (fr) |
DE (2) | DE10206243A1 (fr) |
ES (1) | ES2280727T3 (fr) |
RU (1) | RU2310529C2 (fr) |
UA (1) | UA84128C2 (fr) |
WO (1) | WO2003068425A1 (fr) |
ZA (1) | ZA200404046B (fr) |
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/fr 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/fr not_active Expired - Fee Related
- 2003-01-28 WO PCT/EP2003/000831 patent/WO2003068425A1/fr active IP Right Grant
-
2004
- 2004-05-25 ZA ZA200404046A patent/ZA200404046B/en unknown
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 |
EP1474252A1 (fr) | 2004-11-10 |
UA84128C2 (ru) | 2008-09-25 |
KR20040076862A (ko) | 2004-09-03 |
CA2474973A1 (fr) | 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 (fr) | 2003-08-21 |
AU2003206789A1 (en) | 2003-09-04 |
DE10206243A1 (de) | 2003-08-28 |
JP2005522327A (ja) | 2005-07-28 |
CA2474973C (fr) | 2010-09-21 |
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