EP0893168A2 - Train pour bandes à chaud de 0,5 mm d'épaisseur - Google Patents

Train pour bandes à chaud de 0,5 mm d'épaisseur Download PDF

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Publication number
EP0893168A2
EP0893168A2 EP98250221A EP98250221A EP0893168A2 EP 0893168 A2 EP0893168 A2 EP 0893168A2 EP 98250221 A EP98250221 A EP 98250221A EP 98250221 A EP98250221 A EP 98250221A EP 0893168 A2 EP0893168 A2 EP 0893168A2
Authority
EP
European Patent Office
Prior art keywords
strip
steckel
rolled steel
tandem
rolled
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
Application number
EP98250221A
Other languages
German (de)
English (en)
Other versions
EP0893168B1 (fr
EP0893168A3 (fr
Inventor
Werner Dipl.-Ing. Kircher
Peter Dipl.-Ing. Jollet
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
Mannesmann 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
Priority claimed from DE1997132538 external-priority patent/DE19732538A1/de
Priority claimed from DE1997149716 external-priority patent/DE19749716A1/de
Application filed by Mannesmann AG filed Critical Mannesmann AG
Publication of EP0893168A2 publication Critical patent/EP0893168A2/fr
Publication of EP0893168A3 publication Critical patent/EP0893168A3/fr
Application granted granted Critical
Publication of EP0893168B1 publication Critical patent/EP0893168B1/fr
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
    • 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.
  • the object of the present invention is to provide a system for the production of extreme thin finished tape, preferably about 0.5 mm thick, to create the few Scaffolding, i.e. low investment costs, has a high system capacity and the without capacity restrictions also for thicker tape 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 reduced in thickness in two stitches in the two Steckel stands of the tandem Steckel stand group so that it can be wound up in the winding furnace arranged on the outlet side.
  • the next stitch takes place in reversing mode again with the tandem Steckel scaffolding group, the preliminary strip being fed into the winding furnace arranged on the inlet side.
  • the surface can be descaled once more before the second run of the preliminary strip into the scaffolding group. Descaling can also be done before the last (third) reversing stitch to prevent scale from rolling into the material.
  • the third reversing stitch is carried out again in the direction of the finishing train in the two Steckel stands, so that the supporting strip has undergone a total of six reducing stitches. Following this, the outgoing opening act is mentioned in the above Cremonabox "wound up.
  • 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 While 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 in the position to be ready for the third forehand 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 forehand. 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 denote a ladle turret, that of the continuous casting plant 2 and 2 is upstream and supplied with molten casting.
  • the continuous casting installation which is designed as a sheet continuous casting installation with a horizontal outlet, has a flame cutting machine or a pair of scissors 3 and 3 at its outlet end with which the continuously cast strand of raw material is divided into slabs. These slabs run into a roller hearth furnace 4 and 4 a where they are brought to a uniform temperature across their cross-section. With the ferry 5, the slabs from system section 1 to 4 transported to the rolling mill line. In this way the 2 casting machines are 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 fed to the tandem-Steckel stand group 7. After the first pass through this group of stands, the material is wound up in the outlet-side winding furnace 8, which, as claimed, also serves as the intermediate storage for the preliminary strip, as claimed Cremonaofen ", in order to subsequently be reduced again in the reversing mode in the stand group 7. After this pass, the material is wound up in the entry-side winding furnace 9.
  • the third pass through the stand group 7 reduces the material to the desired pre-strip thickness of the winding device 10 and temporarily stored, which consists of two superimposed furnaces, each of which is equipped with a winding mandrel for receiving the pre-strip
  • the ovens serve as temporary storage to compensate for short process irregularities in the subsequent sections of the plant and are also used as Steckelöfen "used in the first reversing stitches. In the latter case, the winding furnace 8 on the outlet side is omitted.
  • 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)
EP98250221A 1997-07-23 1998-06-18 Méthode pour produire des bandes à chaud de 0.5 mm d'épaisseur dans un train Expired - Lifetime EP0893168B1 (fr)

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 true EP0893168A2 (fr) 1999-01-27
EP0893168A3 EP0893168A3 (fr) 1999-03-31
EP0893168B1 EP0893168B1 (fr) 2002-05-22

Family

ID=26038644

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98250221A Expired - Lifetime EP0893168B1 (fr) 1997-07-23 1998-06-18 Méthode pour produire des bandes à chaud de 0.5 mm d'épaisseur dans un train

Country Status (4)

Country Link
US (1) US6023835A (fr)
EP (1) EP0893168B1 (fr)
JP (1) JPH1177111A (fr)
DE (1) DE59804172D1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0460655A2 (fr) * 1990-06-06 1991-12-11 Hitachi, Ltd. Procédé et appareil pour joindre des matières chaufées par laminage l'un sur l'autre et procédé et arrangement pour laminer à chaud continuellement
EP0734793A1 (fr) * 1995-03-28 1996-10-02 MANNESMANN Aktiengesellschaft Procédé et dispositif pour la production de bandes d'acier laminées à chaud
WO1996032509A1 (fr) * 1995-04-13 1996-10-17 Voest-Alpine Industrieanlagenbau Gmbh Four a devidoir pour feuillard a chaud
WO1997001401A1 (fr) * 1995-06-29 1997-01-16 Hoogovens Staal B.V. Installation pour la production de bandes d'acier
EP0761326A1 (fr) * 1995-09-06 1997-03-12 Sms Schloemann-Siemag Aktiengesellschaft Installation pour la production d'une bande mince laminée à chaud

Family Cites Families (5)

* Cited by examiner, † Cited by third party
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
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
DE19514475A1 (de) * 1995-04-19 1996-10-24 Schloemann Siemag Ag Steckel-Walzwerk
DE19538341A1 (de) * 1995-09-06 1997-03-13 Schloemann Siemag Ag Warmbandproduktionsanlage für das Walzen von dünnem Walzband

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0460655A2 (fr) * 1990-06-06 1991-12-11 Hitachi, Ltd. Procédé et appareil pour joindre des matières chaufées par laminage l'un sur l'autre et procédé et arrangement pour laminer à chaud continuellement
EP0734793A1 (fr) * 1995-03-28 1996-10-02 MANNESMANN Aktiengesellschaft Procédé et dispositif pour la production de bandes d'acier laminées à chaud
WO1996032509A1 (fr) * 1995-04-13 1996-10-17 Voest-Alpine Industrieanlagenbau Gmbh Four a devidoir pour feuillard a chaud
WO1997001401A1 (fr) * 1995-06-29 1997-01-16 Hoogovens Staal B.V. Installation pour la production de bandes d'acier
EP0761326A1 (fr) * 1995-09-06 1997-03-12 Sms Schloemann-Siemag Aktiengesellschaft Installation pour la production d'une bande mince laminée à chaud

Also Published As

Publication number Publication date
US6023835A (en) 2000-02-15
DE59804172D1 (de) 2002-06-27
EP0893168B1 (fr) 2002-05-22
JPH1177111A (ja) 1999-03-23
EP0893168A3 (fr) 1999-03-31

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