EP0893168B1 - Verfahren zur Herstellung von 0.5 mm dicken Warmband in einer Warmbandstrasse - Google Patents
Verfahren zur Herstellung von 0.5 mm dicken Warmband in einer Warmbandstrasse Download PDFInfo
- Publication number
- EP0893168B1 EP0893168B1 EP98250221A EP98250221A EP0893168B1 EP 0893168 B1 EP0893168 B1 EP 0893168B1 EP 98250221 A EP98250221 A EP 98250221A EP 98250221 A EP98250221 A EP 98250221A EP 0893168 B1 EP0893168 B1 EP 0893168B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- ingoing
- outlet
- tandem
- wound
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 238000004804 winding Methods 0.000 claims description 18
- 238000005096 rolling process Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 6
- 238000003860 storage Methods 0.000 description 3
- 238000009749 continuous casting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 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
- 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
- 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
- B21B1/22—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 plates, strips, bands or sheets of indefinite length
- B21B1/30—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 plates, strips, bands or sheets of indefinite length in a non-continuous process
- B21B1/32—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 plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
- B21B1/34—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 plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work by hot-rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/004—Heating the product
- B21B2045/006—Heating the product in vacuum or in inert atmosphere
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4998—Combined manufacture including applying or shaping of fluent material
- Y10T29/49988—Metal casting
- Y10T29/49991—Combined with rolling
Definitions
- the invention relates to a method for producing thin hot-rolled Steel strip with a final thickness of ⁇ 1 mm from strip-shaped cast material in successive steps in which the one leaving the casting plant froze Pre-material divided into pre-strip lengths and in a continuous furnace Rolling temperature is heated to it in a reversing tandem-Steckel stand group as well as the subsequent finishing train.
- Document EP-A-0 734 793 describes such a method with which sheet thicknesses of 1 mm and more can be achieved.
- the object of the present invention is to provide a method for producing extreme thin finished tape, preferably about 0.5 mm thick, to create that with a few Scaffolding, i.e. low investment costs, has a high system capacity and that without capacity restrictions also for thicker belt dimensions (thicker than 1.2 mm) can be used.
- the invention therefore consists in the fact that an approximately 90 mm thick or thinner slab is generated at the exit of the casting machine using scissors or other Sub-devices is divided into finite lengths.
- the resulting slab goes through e.g. a roller hearth furnace and is tempered evenly on a rough road fed.
- the roughing mill consists of a descaling device, a tandem Steckel scaffolding group with winding furnaces arranged on both sides or one itself directly to the winding device connected to the outlet-side Steckel furnace two superimposed ovens, as it is known as a Cremonabox.
- the Cremonabox has an upper and a lower changing option, which alternately can be used.
- the slab emerging from the roller hearth furnace is first descaled and then in the two Steckel stands of the tandem Steckel stand group in two passes greatly reduced in thickness that they are arranged in the winding furnace on the outlet side can be wound up.
- the next stitch is carried out again in reverse operation the tandem Steckel scaffolding group, with the supporting strip in the inlet side arranged winding furnace is guided.
- the surface can be descaled once more.
- a Descaling can also be done before the last (third) reversing stitch To prevent scale from rolling into the material.
- the third reverse stitch is again in the direction of the finishing train in the two Steckel stands, so that the support band has experienced a total of six reduction stitches. Following that the outgoing opening tape is wound up in the "Cremonabox" mentioned above.
- the furnace body is pivoted and the pre-strip end that now becomes the opening head, scissors are fed to the scrap head separate.
- the supporting strip is then further processed by a welding machine (the first is necessary for the second opening act) and a opening act store the end of which is another descaling device to again remove any scale that has arisen in the meantime.
- the band is reduced to a thickness that ensures safe transport of the band over the Outfeed roller conveyor guaranteed up to the reel.
- the tapes again later in the continuous rolling divided to achieve the desired waist sizes and weights.
- the welding together of the cropped Pre-tapes are carried out with the pre-tapes stationary. After the tape from Haspel is taken, the necessary in the pre-roll storage in front of the finishing train The pre-strip length is saved, which is necessary for welding the second opening act to the first opening act is necessary. So during the first If the strip is rolled in the finishing train, it becomes the second in the roughing train simultaneously The supporting strip is rolled and wound up in the lower oven of the Cremonabox.
- the supporting strip is attached to the The end of the first band welded on.
- the Pre-strip storage in front of the finishing train without the rolling process in the finishing train must be interrupted.
- the now empty upper oven of the Cremonabox swings back to the recording position, ready for the third opening act to be, which in turn simultaneously with the rolling process of the second strip in the Finishing line is generated.
- the finished strip thickness can be adjusted by means of the settings of the finishing train reduced and the rolling speed increased accordingly. To this The goal is to achieve 0.5 mm thick hot strip in austenitic Roll temperature level.
- the quick-cut shears in front of the reel enable the endless belt to be closed again divide and create a desired waist size.
- the store in front of the Finishing line filled, so the time required for the welding process of the the next opening to the just rolled opening. This process always runs in the same rhythm.
- the second heated pre-strip store is preferably under protective gas and is arranged directly in front of the finishing train.
- the capacity of the opening memory is according to the run-out speed of the finished strip and the time required designed to weld the leading ends.
- the finished strip should be thick be brought back to a size that allows easy unthreading Finishing line and safe transport via the exit roller table.
- Supporting tape in the tandem Steckel scaffolding group in 6 passes to a thickness of for example 3 mm is rolled.
- the casting machine capacity and the rolling capacity of the roughing and finishing train will be is designed to ensure continuous operation and the desired thermal and geometric requirements for the finished strip be fulfilled.
- 1 and 1 ' denotes a ladle turret, which is upstream of the continuous casting plant 2 and 2 'and this with casting melt provided.
- the continuous caster has a flame cutting machine at its outlet end or a pair of scissors 3 and 3 ', with the help of which the continuously cast Material strand is divided into slabs.
- These slabs run into one Roller hearth furnace 4 and 4 ', where they are uniform over their cross-section Temperature.
- the ferry 5 With the ferry 5 the slabs from the Plant section 1 'to 4' transported into the rolling mill line. That way the 2 casting machines connected to the rolling mill.
- the slab After passing through the Roller hearth furnace, the slab is descaled in a scale washer 6 and then the Tandem-Steckel scaffolding group 7 supplied.
- the material After the first pass through this Framework group, the material is wound in the winding furnace 8 on the outlet side - as claimed - also as a buffer for the opening act serving "Cremonaofen" can then be in reverse operation in the scaffolding group 7 to be further reduced.
- This run that will be Material wound in the inlet-side winding furnace 9.
- the third pass through the Scaffolding group 7 reduces the material to the desired pre-strip thickness.
- This Supporting tape is recorded in the winding device 10 and temporarily stored. which consists of 2 superimposed ovens, each with a winding mandrel Recording of the opening act.
- the housings of these ovens are like this trained that they are pivotable to the end of the strap in the correct position for the subsequent work steps.
- the ovens serve as Buffer to make short process irregularities in the subsequent To compensate for sections of the system and may also be used as "plug-in ovens" at the first reversing stitches used. In the latter case, there is no outlet side Coiling furnace 8.
- the sliver is alternately fed to a pair of scissors 11 from the winding device, which scoops the head of the opening act.
- the scooped supporting tape goes through one Welding machine 12, where it is also the scooped end of the previous one Pre-strip is welded, a loop tower 13 and a scale washer 14, then in a multi-stand finishing train 15 to the desired finished strip to be rolled.
- the belt runs through the outlet roller table 16 with integrated belt cooling 17 a quick cut shear 18 to a reel device 19 where it is wound up.
- Bundaustragewagen 20 and other facilities such as binding machine 21, scales 22, and marking device 23 follow.
- the finished bundle is by means of Bundle transport device 24 transported and stored in the bundle bearing 25.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Description
Claims (6)
- Verfahren zur Herstellung von dünnem warmgewalzten Stahlband mit einer Enddicke < 1 mm aus bandförmig gegossenem Vormaterial in aufeinander folgenden Schritten, bei dem das die Gießanlage verlassende erstarrte Vormaterial in Vorbandlängen aufgeteilt und in einem Rollenherdofen (4,4') auf Walztemperatur erwärmt wird, um es in einer reversierend betriebenen Tandem-Steckel-Gerüstgruppe (7) sowie anschließender Fertigstraße (15) auszuwalzen,
dadurch gekennzeichnet,a. daß das ≦ 90 mm dick gegossene Vormaterial nach dem Entzundern (6) der Oberfläche auf der Tandem-Steckel-Gerüstgruppe (7) in 6 Stichen gewalzt wird, wobei das Vormaterial nach dem ersten und zweiten Durchlauf in einlauf- und auslaufseitig der Tandem-Steckel-Gerüstgruppe (7) angeordneten Wickelöfen (8, 9) auf- und abgewickelt wird,b. daß das Vorband nach dem dritten Durchlauf durch die Tandem-Steckel-Gerüstgruppe (7) in einer als Zwischenspeicher für das Vorband dienenden auslaufseitigen Wickeleinrichtung (10) mit zwei übereinanderliegenden Öfen aufgehaspelt wird,c. daß gleichzeitig mit dem Aufhaspeln des ersten Bundes ein zweites Bund aus dem Zwischenspeicher der auslaufseitigen Wickeleinrichtung (10) abgewickelt wird, dessen geschopftes vorderes Ende an das geschopfte hintere Ende des bereits abgewickelten Vorbandes angeschweißt wird,d. daß das zu einem endlosen Band zusammengeschweißte Vorband durch einen zweiten Vorbandspeicher (13) hindurch der Fertigstraße zugeführt wird, die das Vorband auf die gewünschte Fertigbanddicke reduziert. - Verfahren zur Herstellung von dünnem warmgewalztem Stahlband nach Anspruch 1,
dadurch gekennzeichnet, daß als auslaufseitig angeordneter Wickelofen (8) gemäß Merkmal a. die als Zwischenspeicher für das Vorband dienende auslaufseitigen Wickeleinrichtug (10) gemäß Merkmal b.verwendet wird - Verfahren zur Herstellung von dünnem warmgewalztem Stahlband nach Anspruch 1 und 2,
dadurch gekennzeichnet, daß das Zusammenschweißen (12) der geschopften Vorbänder im Stillstand erfolgt. - Verfahren zur Herstellung von dünnem warmgewalztem Stahlband nach Anspruch 1 bis 3,
dadurch gekennzeichnet, daß der zweite beheizte Vorbandspeicher (13) unter Schutzgas steht und direkt vor der Fertigstraße (15) angeordnet ist, und daß die Kapazität des Vorbandspeichers (12) entsprechend der Auslaufgeschwindigkeit des Fertigbandes und der benötigten Zeit zum Verschweißen der Vorbandenden ausgelegt ist - Verfahren zur Herstellung von warmgewalztem Stahlband nach Anspruch 1 bis 4,
dadurch gekennzeichnet, daß das Vorband in der Tandem Steckel-Gerüstgruppe (7) in 6 Stichen bis auf eine Dicke von 3 mm gewalzt wird. - Verfahren zur Herstellung von dünnem warmgewalztem Stahlband nach Anspruch 1 bis 5,
dadurch gekennzeichnet, daß die Gießmaschinenkapazität und die Walzkapazität der Vor- und Fertigstraße so ausgelegt ist, daß ein kontinuierlicher Betrieb gewährleistet ist und die gewünschten thermischen und geometrischen Anforderungen an das Fertigband erfüllt werden.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1997132538 DE19732538A1 (de) | 1997-07-23 | 1997-07-23 | Warmbandstraße für 0,5 mm dickes Warmband |
DE19732538 | 1997-07-23 | ||
DE1997149716 DE19749716A1 (de) | 1997-10-31 | 1997-10-31 | Warmbandstraße für 0,5 mm dickes Warmband |
DE19749716 | 1997-10-31 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0893168A2 EP0893168A2 (de) | 1999-01-27 |
EP0893168A3 EP0893168A3 (de) | 1999-03-31 |
EP0893168B1 true EP0893168B1 (de) | 2002-05-22 |
Family
ID=26038644
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98250221A Expired - Lifetime EP0893168B1 (de) | 1997-07-23 | 1998-06-18 | Verfahren zur Herstellung von 0.5 mm dicken Warmband in einer Warmbandstrasse |
Country Status (4)
Country | Link |
---|---|
US (1) | US6023835A (de) |
EP (1) | EP0893168B1 (de) |
JP (1) | JPH1177111A (de) |
DE (1) | DE59804172D1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI288676B (en) * | 2002-07-06 | 2007-10-21 | Sms Demag Ag | Method and casting roller plant for the semi-endless or endless rolling by casting of a metal in particular a steel strip which may be transversely cut as required after solidification |
CN101293258B (zh) * | 2007-04-25 | 2010-12-01 | 宝山钢铁股份有限公司 | 中薄板坯连铸连轧生产热轧带钢的方法 |
CN101391264B (zh) * | 2007-09-19 | 2011-02-02 | 中冶赛迪工程技术股份有限公司 | 一种薄中板连铸连轧生产的工艺方法 |
DE102010010156A1 (de) * | 2010-03-04 | 2011-09-08 | Kirchhoff Automotive Deutschland Gmbh | Verfahren zur Herstellung eines Formteiles mit mindestens zwei Gefügebereichen unterschiedlicher Duktilität |
CN104550237B (zh) * | 2014-11-28 | 2016-09-21 | 中冶南方工程技术有限公司 | 用于生产棒线材和型材的连铸-直接轧制装置及方法 |
CN112974519B (zh) * | 2021-03-31 | 2024-06-14 | 武钢集团昆明钢铁股份有限公司 | 一种节约型焊接无头轧制棒材生产线工艺布置及生产方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2225223A1 (en) * | 1973-04-10 | 1974-11-08 | Nippon Kokan Kk | Program-controlled continuous cold-rolled strip - with variable storage unit synchronised with uncoiling and rolling speeds |
US5121873A (en) * | 1990-06-06 | 1992-06-16 | Hitachi Ltd. | Method of and apparatus for joining hot materials to be rolled to each other as well as continuous hot rolling method and system |
IT1244295B (it) * | 1990-07-09 | 1994-07-08 | Giovanni Arvedi | Processo ed impianto per l'ottenimento di nastri di acciaio avvolti, aventi caratteristiche di laminati a freddo ottenuti direttamente in linea di laminazione a caldo |
US5540074A (en) * | 1994-12-07 | 1996-07-30 | Ipsco Enterprises Inc. | Unitary assembly of peripheral devices for use with steckel mill |
DE19512953A1 (de) * | 1995-03-28 | 1996-10-02 | Mannesmann Ag | Verfahren und Vorrichtung zur Herstellung von warmgewalztem Stahlband |
AT403169B (de) * | 1995-04-13 | 1997-11-25 | Voest Alpine Ind Anlagen | Haspelofen für ein warmband |
DE19514475A1 (de) * | 1995-04-19 | 1996-10-24 | Schloemann Siemag Ag | Steckel-Walzwerk |
NL1000693C2 (nl) * | 1995-06-29 | 1996-12-31 | Hoogovens Staal Bv | Inrichting voor het vervaardigen van een stalen band. |
DE19538341A1 (de) * | 1995-09-06 | 1997-03-13 | Schloemann Siemag Ag | Warmbandproduktionsanlage für das Walzen von dünnem Walzband |
ATE189627T1 (de) * | 1995-09-06 | 2000-02-15 | Schloemann Siemag Ag | Warmbandproduktionsanlage für das walzen von dünnem walzband |
-
1998
- 1998-06-18 DE DE59804172T patent/DE59804172D1/de not_active Expired - Lifetime
- 1998-06-18 EP EP98250221A patent/EP0893168B1/de not_active Expired - Lifetime
- 1998-07-16 JP JP10201612A patent/JPH1177111A/ja active Pending
- 1998-07-22 US US09/120,777 patent/US6023835A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE59804172D1 (de) | 2002-06-27 |
US6023835A (en) | 2000-02-15 |
EP0893168A2 (de) | 1999-01-27 |
EP0893168A3 (de) | 1999-03-31 |
JPH1177111A (ja) | 1999-03-23 |
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