EP0925850A2 - Procédé de laminage pour une bande métallique - Google Patents

Procédé de laminage pour une bande métallique Download PDF

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Publication number
EP0925850A2
EP0925850A2 EP98124113A EP98124113A EP0925850A2 EP 0925850 A2 EP0925850 A2 EP 0925850A2 EP 98124113 A EP98124113 A EP 98124113A EP 98124113 A EP98124113 A EP 98124113A EP 0925850 A2 EP0925850 A2 EP 0925850A2
Authority
EP
European Patent Office
Prior art keywords
strip
roll stand
rolling
compensating
band
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.)
Withdrawn
Application number
EP98124113A
Other languages
German (de)
English (en)
Other versions
EP0925850A3 (fr
Inventor
Dieter Dipl.-Ing. Ladda
Michael Dr.-Ing. Breuer
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 Schloemann Siemag AG
Schloemann Siemag 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 Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0925850A2 publication Critical patent/EP0925850A2/fr
Publication of EP0925850A3 publication Critical patent/EP0925850A3/fr
Withdrawn legal-status Critical Current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
    • B21B1/22—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
    • B21B1/224—Edge rolling of flat products
    • 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
    • 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
    • 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

Definitions

  • the present invention relates to a rolling process for a metal strip with a band cross-section, a band beginning, a band end and an intermediate band middle section, in particular a Steel band.
  • Such tapes are first in the prior art in one Upsetter compressed, so that the strip cross-section is in the form of a Dog bone with bulges on the band edges. After that the metal strip is in at least one work stand Rollers rolled. After rolling, the tape will be on his Skipped the beginning and end of the tape. Accordingly, one Continuous rolling mill at least one roll stand and one Staucher upstream of the rolling stand and one downstream of the rolling stand Scissors.
  • the tape runs its entire length should have a width that is as uniform as possible.
  • the width will again influenced by a variety of factors, for example Initial geometry of the band, the natural spread and the Constriction of the strip due to the strip tension within the rolling mill and on the way to the reel.
  • the middle section and the end of the band are usually the strips in front of the rolling mill by means of a Compression mill pre-compressed and then rolled.
  • a Compression mill pre-compressed and then rolled.
  • the beginning and end of the band are more compressed than the middle section of the band.
  • the unwanted ones are then Band shapes at the beginning and end of the band using cropping shears away.
  • Such upsetting structures are also used in finished streets Direct processing of thin slabs (slab thickness below 100 mm) the finishing streets.
  • a so-called dog bone profile is formed by upsetting. This often leads to something special when passing through the rolling mill Forms of the beginning and end of the band. At the end of the line there are, for example, so-called Beaver tails, pancakes and fish tails typical. Especially the fish tails at the end of the strip tend to roll thin strips for double or one-sided tearing. This will ensure process reliability the rolling mill affected.
  • the possible degree of compression is also limited at the beginning of the strip, since that Belt must be threaded securely into the rolling mill. Will the tape too compressed at the beginning of the tape, it can happen that it does not gets into the roll gap, but hits and stops on a roll.
  • the object of the present invention is therefore a To provide rolling process for a metal strip in which the end product is high quality and especially uniform Has width over its entire length, being a A high degree of process reliability should be achieved or maintained.
  • the task is solved for the rolling process in that the Metal strip after upsetting in a compensating stand is rolled that essentially only the strip edges are rolled, that the metal strip after upsetting or after rolling the Tape edges is skimmed and that the metal tape only after Rolling the band edges and skimming in at least one work stand is rolled with work rolls.
  • the continuous rolling mill is characterized by that the scissors either between the edger and him immediately downstream compensating roll stand or at most 20 m behind the compensating roll stand.
  • the compensating roll stand Since the compensating roll stand only has comparatively low forces the band must exercise, it is preferably for reasons of cost Two-roll mill stand designed.
  • the scissors preferably have at least two pairs of knives.
  • the beginning and end of the band can be skimmed off, for example, in such a way that the beginning or end of the band and the middle section of the band behind the work rolls have a uniform range.
  • the beginning or end of the band can also be skimmed off in this way be that threading the beginning of the strip into the work stand is facilitated or that when the metal strip emerges from the Work roll stand whose work rolls do not hit each other. This can be achieved in particular by changing the bandwidth seen continuously at the beginning of the strip in the direction of the strip increased and continuous at the end of the conveyor in the direction of travel decreases.
  • the rolling process is used particularly advantageously when the processed metal strip is taken directly from a continuous caster is, so that a continuous caster is arranged upstream of the edger.
  • a metal strip e.g. a steel band
  • the band 1 has one Band cross direction y a width. It runs from a band edge 13 to an opposite band edge 13. It also has one Cross section 5.
  • the tape 1 is in a continuous, shown schematically in Fig. 3 Rolled mill. 3, the tape is 1st first centered in a centering unit 6 in the belt transverse direction y. The strip 1 then passes through a descaler 7 in which the strip 1 is descaled. The strip 1 then passes through an edger 8 and a compensating roll stand 9. Between the edger 8 and the Compensating roll stand 9, scissors 10 are arranged, by means of which tape 1 at the beginning of the tape 2 and at the end of the tape 4 can. Behind the compensating roll stand 9 are work roll stands 11 arranged on a finishing train. The work stands 11 have of course work rolls 12 on.
  • the strip 1 is intended to pass through after passing through the work stands 11 if possible have a rectangular cross section 5.
  • the metal strip 1 in the edger 8 initially compressed so that the band cross-section 5 the shape of a dog bone shown in FIG. 2.
  • the metal band 1 therefore has 13 bulges at its band edges. It is on these places thicker than between the band edges 13.
  • the metal strip 1 is then rolled in such a way that essentially only the strip edges 13 are rolled. Outside the band edges 13 will either not or only a band thickness d reduced by a maximum of 5%.
  • the tapping of the metal strip 1 by the scissors 10 is used Increasing process security. In the present case, it happens before the compensating rollers, it could alternatively also be immediate done afterwards. After compensating rolling and tapping the strip 1 this is rolled by means of the work stands 11.
  • a separate compensating roll stand is used 9 used. Since this mill stand 9 is only relatively small Must exert forces on the metal strip 1, it is for reasons of cost preferably designed as a two-roll mill stand. This is shown in Fig. 3 also shown in this way.
  • the edger 8 can be arranged directly in front of the first of the work stands 11. This work roll stand 11 then serves as a compensating roll stand, because it is the rolling stand immediately downstream of the edger 8.
  • the scissors 10 is immediately behind the front of the work stands 11 at a distance D.
  • the distance D between this work stand 11 and Scissors 10 is a maximum of 20 m, but is preferably less than 10 m, e.g. only 3 to 5 m.
  • the scissors 10 also have two pairs of knives 14 so that the beginning of the band 2 and the end of the band 4 can be skimmed differently.
  • Band start 2 and Band end 4 can be skimmed, for example, that they more or taper to a lesser arrow shape. This will make 2 threading this strip start 2 into the rear of the work stands 11 relieved.
  • the beginning of the band 2 and the end of the band 4 can also be such be skimmed off that the entire strip 1 after the work rolling, that is, after exiting the rear work stand 11, one has a uniform bandwidth.
  • the unit described above from Staucher 8, compensating roll stand 9 and scissors 10 - the centering unit 6 and the descaler 7 are advantageous, but not absolutely necessary preferably, as shown in FIG. 5, a continuous caster 15 subordinate.
  • the continuous caster 15 is therefore the edger 8 upstream. From it, tape 1 is removed and directly the Rolling mill fed.
  • the Staucher 8, compensating roll stand 9 and scissors 10 existing unit is immediately behind the Continuous caster 15 arranged, so not only in front of the work stands 11, but even in front of a temperature compensation furnace 16. In this case too, the compensating roll stand 9 is preferred designed as a two-roll mill stand.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Control Of Metal Rolling (AREA)
EP98124113A 1997-12-23 1998-12-18 Procédé de laminage pour une bande métallique Withdrawn EP0925850A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19757486 1997-12-23
DE1997157486 DE19757486A1 (de) 1997-12-23 1997-12-23 Walzverfahren für ein Metallband

Publications (2)

Publication Number Publication Date
EP0925850A2 true EP0925850A2 (fr) 1999-06-30
EP0925850A3 EP0925850A3 (fr) 2002-12-04

Family

ID=7853148

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98124113A Withdrawn EP0925850A3 (fr) 1997-12-23 1998-12-18 Procédé de laminage pour une bande métallique

Country Status (2)

Country Link
EP (1) EP0925850A3 (fr)
DE (1) DE19757486A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103415357A (zh) * 2011-03-14 2013-11-27 西门子公司 用于轧制用整体铸件法制造的轧件的方法以及轧机机列，用于轧机机列的控制和/或调节装置，用于控制和/或调节装置的机器可读的程序代码模块以及存储媒介
DE102022212909A1 (de) 2022-11-30 2024-06-06 Sms Group Gmbh Verfahren zum Bearbeiten eines Gießstrangs

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19745727B4 (de) * 1997-10-16 2011-03-24 Sms Siemag Aktiengesellschaft Haspelanlage
DE19900779B4 (de) * 1999-01-12 2010-04-01 Sms Siemag Aktiengesellschaft Verfahren zum Walzen von Metallband und Anlage zur Durchführung des Verfahrens

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58215205A (ja) * 1982-06-08 1983-12-14 Kawasaki Steel Corp 熱間圧延方法
JPH0785802B2 (ja) * 1984-08-28 1995-09-20 石川島播磨重工業株式会社 圧延装置
JP2808348B2 (ja) * 1990-07-25 1998-10-08 川崎製鉄株式会社 ストリップの板端部形状の制御方法
DE4104001A1 (de) * 1991-02-09 1992-08-13 Schloemann Siemag Ag Verfahren und anlage zum auswalzen von durch stranggiessen hergestellten vorbaendern bzw. duennbrammen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103415357A (zh) * 2011-03-14 2013-11-27 西门子公司 用于轧制用整体铸件法制造的轧件的方法以及轧机机列，用于轧机机列的控制和/或调节装置，用于控制和/或调节装置的机器可读的程序代码模块以及存储媒介
US9381553B2 (en) 2011-03-14 2016-07-05 Siemens Aktiengesellschaft Method and rolling train for rolling a rolled stock produced in an ingot casting process, open- and/or closed-loop control device for a rolling train, machine-readable program code for an open- and/or closed-loop control device, and storage medium
DE102022212909A1 (de) 2022-11-30 2024-06-06 Sms Group Gmbh Verfahren zum Bearbeiten eines Gießstrangs
WO2024115360A1 (fr) 2022-11-30 2024-06-06 Sms Group Gmbh Procédé de traitement d'un brin de coulée

Also Published As

Publication number Publication date
DE19757486A1 (de) 1999-06-24
EP0925850A3 (fr) 2002-12-04

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