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WO2000074867A1 - Procede et installation de laminage destines au laminage austenitiques de minces bandes - Google Patents

Procede et installation de laminage destines au laminage austenitiques de minces bandes Download PDF

Info

Publication number
WO2000074867A1
WO2000074867A1 PCT/EP2000/005088 EP0005088W WO0074867A1 WO 2000074867 A1 WO2000074867 A1 WO 2000074867A1 EP 0005088 W EP0005088 W EP 0005088W WO 0074867 A1 WO0074867 A1 WO 0074867A1
Authority
WO
WIPO (PCT)
Prior art keywords
rolling
strip
winding
stand
speed
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.)
Ceased
Application number
PCT/EP2000/005088
Other languages
German (de)
English (en)
Inventor
Bernd Krüger
Wolfgang Hennig
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
SMS Demag 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, SMS Demag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Priority to MXPA01012415A priority Critical patent/MXPA01012415A/es
Priority to EP00935166A priority patent/EP1183113A1/fr
Priority to JP2001501385A priority patent/JP2003501262A/ja
Priority to CA002375117A priority patent/CA2375117A1/fr
Priority to BR0011243-7A priority patent/BR0011243A/pt
Publication of WO2000074867A1 publication Critical patent/WO2000074867A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B21B1/24—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 continuous or semi-continuous process
    • B21B1/26—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 continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
    • 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
    • B21B2015/0057—Coiling the rolled product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2201/00—Special rolling modes
    • B21B2201/02—Austenitic rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2275/00—Mill drive parameters
    • B21B2275/02—Speed
    • B21B2275/06—Product speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2275/00—Mill drive parameters
    • B21B2275/02—Speed
    • B21B2275/08—Coiler speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
    • B21B37/76—Cooling control on the run-out table

Definitions

  • the invention relates to a method for austeni tic rolling of thin strips in hot strip mills, preferably in CSP plants, consisting of a multi-stand rolling mill, a roll out run with facilities for cooling the rolled strip and downstream winding machines for winding the strip.
  • Hot rolling plants for the production of strips are generally designed and operated today in such a way that the forming in the individual rolling stands is carried out austenitic. It is thus ensured that the rolling temperature in the individual roll stands is above the GOS line of the iron-carbon fdiagra ms. Only after the last rolling pass does cooling to the coiling temperature take place with structural change in the cooling section.
  • the final rolling temperature in the above-described processes is approximately 890 to 930 ° C.
  • the maintenance of the finish rolling temperature is controlled by changing the finish rolling speed, which has an influence on the natural cooling and on the heat supply by the rolling process.
  • This can also be used without problems for strip thicknesses above a minimum strip thickness which, depending on the rolling mill type, is of the order of 1.3 mm. If this strip thickness is undershot, the required rolling speed reaches values of more than 12 m / s, which can no longer be controlled in the free run on the run-out roll behind the rolling mill, since the hot strip on the run-out roll runs at this high speed can no longer run properly and cannot be reeled afterwards.
  • the first stand of the rolling mill is first designed as a reversing stand, to which at least one reel furnace is arranged upstream and downstream, a controllable cooling device being provided between the upstream reel furnace and the following reservation stand.
  • a winding machine for example a rotor reel
  • the first strip is then wound with its high exit speed on the first mandrel of the rotor reel to the first coil, then the mandrels of the rotor reel are pivoted through 180 °.
  • the first strip is now being unwound again at the slower transport speed (maximum 12.5 m / s) and transported to the underfloor reel via the outlet roller, the next strip is wound onto the second mandrel of the rotor reel with its high exit speed to the second coil .
  • the mandrels of the rotor reel are swiveled again by 180 ° and the next band can now be wound up. In this way, the winding and unwinding can be carried out continuously.
  • Transport speeds are possible at the same time and no disadvantages and problems are caused by an excessively high exit speed, even if the exit speed is> 12.5 m / s and is, for example, 20 m / s and the transport speed is ⁇ 12 , 5 m / s is significantly slower.
  • the measure of winding and unwinding does not have an influence on the slab or coil sequence, since according to the invention the next following strip is already being wound up during unwinding. Since the winding is finished faster than the simultaneous unwinding of the previous band due to the higher speed, the rotor reel is only pivoted by 180 ° when the unwinding process is finished. There is therefore a small pause in the wound coil, which advantageously leads to a temperature compensation of different strip areas.
  • Another advantage of the invention is that after winding and unwinding the tape ends are interchanged and now the original tape end is first led to the outlet roll for cooling.
  • a rolling mill for carrying out the method according to the invention has a winding machine, for example a rotor reel, which can be pivoted into the rolling line immediately behind the last rolling stand and before the runout is arranged and has two winding mandrels offset by 180 ° and is designed with its mandrels pivotable by 180 °.
  • a winding machine for example a rotor reel
  • FIG. 1 shows a section of a conventional rolling mill with a rotor reel according to the invention
  • FIG. 3 shows a plan view of a section of the rolling train according to FIG. 1,
  • Fig. 4 is a plan view of a section of a
  • Figure 1 shows a continuous caster 1 (it is a two-strand system), followed by a pair of scissors 2, a compensating furnace 3, another pair of scissors 4 and a multi-stand rolling mill 5. Behind the rolling mill 5 there is the run-out roller table 10 with devices 6 for cooling and finally a deflection roller 9 with a subsequent under-reel 7 for winding up the finished strip.
  • a rotor reel 8 with two winding mandrels 8 ', 8' 1 is pivoted into the rolling line in this conventional hot strip mill immediately behind the last rolling stand of the rolling mill 5. The strip from the roll stand, leaving the rolling line, is guided over the first deflection roller 9 ′ into this rotor reel 8 onto the mandrel 8 ′ as a winding strip 11.
  • the tape is fed back as an unwinding tape 12 via the second deflection roller 9''into the rolling line to the exit roller 10.
  • the two winding mandrels 8 ', 8''of the rotor reel 8 are designed to be drivable independently of one another, so that the different winding and unwinding speeds are made possible according to the invention.
  • FIG. 2 shows, schematically, adapted to FIG. 1, the strip speeds prevailing in the hot strip mill.
  • the thin slabs are poured at the speed v Bra (nm or v ß ) and moved into the compensating furnace 3 and the rolling mill 5.
  • the exit speed v Ha ⁇ 2en or v w follows, at which the finished rolled thin strip 11 in the Rotor reel 8 is wound up. From this rotor reel 8, the previous belt is then conveyed as unwinding belt 12 at the speed v jranS p 0 rt D2W - v ⁇ to the underfloor reel 7 via the outlet roll 10.
  • FIG. 3 shows a partial section of FIG. 1 in a schematic top view.
  • the band emerging from the roll stand 5 with the winding speed tv H - the winding band 11 - is wound onto the mandrel 8 'of the rotor reel 8.
  • the second mandrel 8 '' arranged behind the mandrel 8 'in the transport direction Rotor reel 8 unwinds the unwinding belt 12 at the transport speed t .
  • the two mandrels 8' and 8 '' are offset from one another by 180 °, so that each mandrel 8 ', 8 1 ' after one Change of position is in the same orientation as the previous mandrel.
  • the pivoting of the mandrels 8, 8 1 'to change the position can be carried out in any direction according to the double arrow 14 or in only one direction, for example only clockwise.
  • the reel 8 is arranged in the direction of the arrow 13 so that it can be swung in and out laterally into the rolling line.
  • the pivoting in and out is - not shown in the drawing figures - but also from below in the rolling line feasible.
  • FIG. 4 shows a further possible embodiment of the invention in a top view.
  • the two mandrels 8 ′, 8 ′′ are not arranged one behind the other in the transport direction, as in FIG. 3, but next to one another.
  • the change of position also takes place here by rotating the two mandrels 8 ′, 8 ′ ′′ by 180 ° in the direction of arrow 14, but now about the pivot point 16 arranged laterally next to the belt 11 and the unwinding belt 12.
  • the table below shows the resultant cycle times for the production of a thin strip using an example.
  • the invention is not limited to the examples shown and cited, but can be adapted to the given conditions in accordance with the design of an existing or a new hot strip mill, if the basic idea of the invention is retained, the thin strip with its high output immediately after rolling winding speed and unwinding at a correspondingly low speed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

L'invention concerne la production de minces bandes par des rouleaux austénitiques dans des trains à feuillards à chaud. Dans le cas d'une bande de très mince épaisseur, on a des vitesses de sortie (vW) élevées qui engendrent des difficultés dans les opérations d'usinage consécutives. Selon l'invention, la bande est enroulée, immédiatement à sa sortie de la dernière cage de laminoir du train de laminoirs (5), comme bande d'enroulement (11) sur une bobineuse rotor (8) à la vitesse de sortie (vW) puis elle est redéroulée comme bande de déroulement (12) à une vitesse de transport (vT) plus faible.
PCT/EP2000/005088 1999-06-04 2000-06-05 Procede et installation de laminage destines au laminage austenitiques de minces bandes Ceased WO2000074867A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
MXPA01012415A MXPA01012415A (es) 1999-06-04 2000-06-05 Metodo e instalacion de rolado para el rolado austenitico de bandas delgadas.
EP00935166A EP1183113A1 (fr) 1999-06-04 2000-06-05 Procede et installation de laminage destines au laminage austenitiques de minces bandes
JP2001501385A JP2003501262A (ja) 1999-06-04 2000-06-05 薄いストリップのオーステナイト状態圧延方法及びその設備
CA002375117A CA2375117A1 (fr) 1999-06-04 2000-06-05 Procede et installation de laminage destines au laminage austenitiques de minces bandes
BR0011243-7A BR0011243A (pt) 1999-06-04 2000-06-05 Processo e equipamento de laminação para a laminação austenìtica de faixas delgadas

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19925536.9 1999-06-04
DE1999125536 DE19925536A1 (de) 1999-06-04 1999-06-04 Verfahren und Walzanlage zum austenitischen Walzen von dünnen Bändern

Publications (1)

Publication Number Publication Date
WO2000074867A1 true WO2000074867A1 (fr) 2000-12-14

Family

ID=7910186

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/005088 Ceased WO2000074867A1 (fr) 1999-06-04 2000-06-05 Procede et installation de laminage destines au laminage austenitiques de minces bandes

Country Status (8)

Country Link
EP (1) EP1183113A1 (fr)
JP (1) JP2003501262A (fr)
CN (1) CN1364103A (fr)
BR (1) BR0011243A (fr)
CA (1) CA2375117A1 (fr)
DE (1) DE19925536A1 (fr)
MX (1) MXPA01012415A (fr)
WO (1) WO2000074867A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103170589B (zh) * 2013-02-01 2015-05-27 青岛云路新能源科技有限公司 一种非晶带材的在线卷取装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972603C (de) * 1950-08-03 1959-09-10 Kocks Gmbh Friedrich Kontinuierlich arbeitende Walzenstrasse zum Warmwalzen von Breitband
DE2251182A1 (de) * 1972-10-19 1974-05-02 Demag Ag Haspelvorrichtung zum abwickeln von bunden aus metall-, insbesondere aus stahlbaendern
JPH02268904A (ja) * 1989-04-10 1990-11-02 Sumitomo Metal Ind Ltd ライン分割による熱延鋼板製造方法
JPH0957303A (ja) * 1995-08-22 1997-03-04 Nippon Steel Corp 連続熱延設備
EP0870553A2 (fr) * 1997-04-10 1998-10-14 DANIELI & C. OFFICINE MECCANICHE S.p.A. Procédé et train de laminage pour produits plats et minces
WO1999003612A1 (fr) * 1997-07-15 1999-01-28 Danieli & C. Officine Meccaniche S.P.A. Machine a bobiner pour produit demi-fini lamine a chaud, comme une bande ou une feuille, et procede de bobinage associe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972603C (de) * 1950-08-03 1959-09-10 Kocks Gmbh Friedrich Kontinuierlich arbeitende Walzenstrasse zum Warmwalzen von Breitband
DE2251182A1 (de) * 1972-10-19 1974-05-02 Demag Ag Haspelvorrichtung zum abwickeln von bunden aus metall-, insbesondere aus stahlbaendern
JPH02268904A (ja) * 1989-04-10 1990-11-02 Sumitomo Metal Ind Ltd ライン分割による熱延鋼板製造方法
JPH0957303A (ja) * 1995-08-22 1997-03-04 Nippon Steel Corp 連続熱延設備
EP0870553A2 (fr) * 1997-04-10 1998-10-14 DANIELI & C. OFFICINE MECCANICHE S.p.A. Procédé et train de laminage pour produits plats et minces
WO1999003612A1 (fr) * 1997-07-15 1999-01-28 Danieli & C. Officine Meccaniche S.P.A. Machine a bobiner pour produit demi-fini lamine a chaud, comme une bande ou une feuille, et procede de bobinage associe

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
"A ROUND-UP OF CSP THIN SLAB", STEEL TIMES - INCORPORATING IRON & STEEL,GB,FUEL & METALLURGICAL JOURNALS LTD. LONDON, vol. 226, no. 5, 1 May 1998 (1998-05-01), pages 175 - 176,178, XP000755892, ISSN: 0039-095X *
PATENT ABSTRACTS OF JAPAN vol. 015, no. 025 (M - 1071) 21 January 1991 (1991-01-21) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 07 31 July 1997 (1997-07-31) *

Also Published As

Publication number Publication date
CN1364103A (zh) 2002-08-14
BR0011243A (pt) 2002-03-05
DE19925536A1 (de) 2000-12-07
MXPA01012415A (es) 2002-07-30
CA2375117A1 (fr) 2000-12-14
JP2003501262A (ja) 2003-01-14
EP1183113A1 (fr) 2002-03-06

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