EP2991783A1 - Procédé de fabrication d'une bande métallique - Google Patents

Procédé de fabrication d'une bande métallique

Info

Publication number
EP2991783A1
EP2991783A1 EP14720168.5A EP14720168A EP2991783A1 EP 2991783 A1 EP2991783 A1 EP 2991783A1 EP 14720168 A EP14720168 A EP 14720168A EP 2991783 A1 EP2991783 A1 EP 2991783A1
Authority
EP
European Patent Office
Prior art keywords
sheet
strip
cooling
volume flow
rolling mill
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
EP14720168.5A
Other languages
German (de)
English (en)
Other versions
EP2991783B1 (fr
Inventor
August Sprock
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 Group GmbH
Original Assignee
SMS Group GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=51727301&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2991783(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by SMS Group GmbH filed Critical SMS Group GmbH
Publication of EP2991783A1 publication Critical patent/EP2991783A1/fr
Application granted granted Critical
Publication of EP2991783B1 publication Critical patent/EP2991783B1/fr
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B21B45/02—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 for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2201/00—Special rolling modes
    • B21B2201/06—Thermomechanical rolling

Definitions

  • Grain structure of the structure fine grain hardening positive on the strength and at the same time on the toughness properties. With a small grain size, the strength and toughness properties of the steel material are improved.
  • Another aspect concerns the flatness of the strip or sheet. The lower the temperature after cooling in the cooling section and the thicker the strip or sheet thickness, the more important the water application on the
  • the solution of this problem by the invention is characterized in that the strip or sheet is subjected immediately after passing the work rolls of the last stand an additional rapid cooling, wherein the cooling of the strip or sheet at least partially within the
  • the strip or sheet is preferably made by first casting a slab in a continuous casting plant, then placing it in an oven,
  • a steel strip or a steel sheet is preferably produced.
  • the strip may be steel strip to which alloying constituents are added.
  • the rolling mill is preferably a hot rolling mill.
  • the quick cooling preferably extends from the interior of the last
  • Roll stand of the rolling mill in the conveying direction ie in the rolling direction
  • the cooling device behind the last rolling stand of the rolling mill in the conveying direction preferably begins at a distance greater than 10 m.
  • a rapid cooling is arranged in the last frame of the finishing train.
  • the time between the passage of the last roll gap and the cooling of the strip or sheet is thus minimal.
  • the rapid cooling is preferably designed so that cooling rates above 1 000 K / s at the surface are possible.
  • the amounts of water are applied in such a way that optimum flatness results.
  • the rapid cooling measuring instruments for the thickness of the band or for the same temperature
  • the present invention allows the improved production of strips and sheets, in particular of metallic materials (especially steel and iron alloys) in hot and heavy plate mills.
  • the resulting grain structure is the result of recrystallization and recovery processes occurring in the material during forming.
  • Grain growth takes place especially after the last pass in a hot strip mill or in a heavy plate stand and can be prevented or reduced by the earliest possible cooling of the strip.
  • the present invention provides a response and describes a
  • Cast continuous casting then heated in a roller hearth to the desired oven temperature and immediately afterwards in the finishing mill (rolling mill) rolled down to the finished strip thickness (heating insert).
  • the slab can also be heated in the oven after a longer laytime and then further processed in the rolling mill (cold use).
  • the necessary furnace temperature depends essentially on the final thickness and bandwidth to be rolled as well as on the
  • Toughness results according to the Cottrell-Petch equation with the decrease in grain size. This can be in the form of a decrease in the DBTT transition temperature (Ductil Brittie Transition Temperature) or higher values in the
  • Amounts of water are adjusted so that arise on the band / Blechober- and - underside the same temperatures, optimum flatness is achieved, and the band / sheet edge is like the center of the tape flat on the roller table. However, it is necessary to increase the amount of water on the bottom.
  • the single figure shows schematically the last framework of a finishing train for producing a steel strip and a subsequent laminar cooling including coiler.
  • the figure shows the rolling stand 2 of a finishing train.
  • the strip 1 is rolled in the finishing train and leaves in the conveying direction F the last rolling stand 2.
  • Rolling stand 2 the belt 1 is cooled, using a quick-cooling 4 is used, which corresponds in structure to the classical construction.
  • a cooling medium (water) is sprayed onto the top and bottom of the belt 1.
  • the cooling device 3 is divided into 10 sections.
  • Embodiment amounts to about 9 m from the middle of the roll stand 2 amounts;
  • Embodiment at about 14 m behind the center of the rolling mill. 2
  • Behind the cooling device 3 is a reel device 5 for
  • Temperature measuring elements 6 and 7 determine the respective temperature at the corresponding location in order to be able to monitor the course of the process.
  • the proposed method is used in combination with a CSP plant with X-strands, oscillation and use of the tunnel kiln, or in a conventional hot rolling mill.

Abstract

L'invention concerne un procédé de fabrication d'une bande métallique (1) selon lequel la bande (1) est laminée dans un laminoir à plusieurs cages, est sortie derrière la dernière cage (2) du laminoir dans le sens de transport (F) et refroidie dans un dispositif de refroidissement (3). Pour obtenir une structure granulaire favorable et un degré de planéité élevé, selon l'invention la bande ou tôle (1) est soumise directement après le passage par les cylindres de travail de la dernière cage (2) de laminoir à un refroidissement rapide (4) supplémentaire, le refroidissement de la bande ou tôle (1) ayant encore lieu au moins en partie dans l'étendue de la dernière cage (2) de laminoir dans le sens de transport (F), le refroidissement rapide ayant lieu en appliquant un fluide de refroidissement par le haut et par le bas sur la bande ou tôle (1), le flux volumique de fluide de refroidissement appliqué par le bas sur la bande ou tôle (1) s'élevant au moins à 120 % du flux volumique de fluide de refroidissement appliqué par le haut sur la bande ou tôle (1).
EP14720168.5A 2013-05-03 2014-04-30 Procédé de fabrication d'une bande métallique Revoked EP2991783B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102013208145 2013-05-03
DE102013221072 2013-10-17
DE102013019698.1A DE102013019698A1 (de) 2013-05-03 2013-11-26 Verfahren zur Herstellung eines metallischen Bandes
PCT/EP2014/058935 WO2014177664A1 (fr) 2013-05-03 2014-04-30 Procédé de fabrication d'une bande métallique

Publications (2)

Publication Number Publication Date
EP2991783A1 true EP2991783A1 (fr) 2016-03-09
EP2991783B1 EP2991783B1 (fr) 2017-03-01

Family

ID=51727301

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14720168.5A Revoked EP2991783B1 (fr) 2013-05-03 2014-04-30 Procédé de fabrication d'une bande métallique

Country Status (8)

Country Link
US (1) US9833823B2 (fr)
EP (1) EP2991783B1 (fr)
JP (1) JP6138347B2 (fr)
KR (1) KR101759915B1 (fr)
CN (1) CN105324190B (fr)
DE (1) DE102013019698A1 (fr)
RU (1) RU2635500C2 (fr)
WO (1) WO2014177664A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021245355A1 (fr) 2020-06-04 2021-12-09 Constellium Neuf-Brisach Procede et equipement de refroidissement sur un laminoir reversible a chaud
FR3112296A1 (fr) 2020-07-07 2022-01-14 Constellium Neuf-Brisach Procédé et équipement de refroidissement sur un Laminoir réversible à chaud

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016002950A1 (de) 2016-03-11 2017-09-14 Rheinisch-Westfälische Technische Hochschule (Rwth) Aachen System zu extrakorporalen Elimination von Kohlenmonoxid
US20210331222A1 (en) * 2017-01-24 2021-10-28 Primetals Technologies Austria GmbH Casting-rolling installation and method for treating a workpiece by means of such an installation
IT201700039423A1 (it) * 2017-04-10 2018-10-10 Arvedi Steel Eng S P A Impianto e procedimento per la produzione in molteplici modalita' di nastri e lamiere d’acciaio
RU2686504C1 (ru) * 2018-10-01 2019-04-29 Акционерное общество "Выксунский металлургический завод" Способ производства рулонной полосы на широкополосном прокатном стане
DE102019203088A1 (de) 2019-03-06 2020-09-10 Sms Group Gmbh Verfahren zur Herstellung eines metallischen Bandes oder Blechs
DE102019220033A1 (de) * 2019-03-18 2020-09-24 Sms Group Gmbh Anlage und Verfahren zur Herstellung von metallischem Warmband

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JPS6022115A (ja) 1983-07-18 1985-02-04 Derufuai:Kk ポリゴンミラ駆動装置
JPS60221115A (ja) 1984-04-04 1985-11-05 Kobe Steel Ltd 鋼板冷却方法
JPS60243226A (ja) 1984-05-15 1985-12-03 Kawasaki Steel Corp 熱間圧延材の材質制御方法および装置
JPS6156722A (ja) 1984-08-28 1986-03-22 Kawasaki Steel Corp 熱延鋼板の熱間仕上圧延機出側直近急冷方法
SU1817714A3 (en) 1991-12-06 1993-05-23 Орско-Халиловский металлургический комбинат Method of cooling thick-sheet rolled metal
JP3508540B2 (ja) 1998-03-30 2004-03-22 Ｊｆｅスチール株式会社 鋼板冷却設備
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021245355A1 (fr) 2020-06-04 2021-12-09 Constellium Neuf-Brisach Procede et equipement de refroidissement sur un laminoir reversible a chaud
FR3112296A1 (fr) 2020-07-07 2022-01-14 Constellium Neuf-Brisach Procédé et équipement de refroidissement sur un Laminoir réversible à chaud
FR3112297A1 (fr) 2020-07-07 2022-01-14 Constellium Neuf-Brisach Procédé et équipement de refroidissement sur un Laminoir réversible à chaud

Also Published As

Publication number Publication date
RU2015151581A (ru) 2017-06-08
EP2991783B1 (fr) 2017-03-01
DE102013019698A1 (de) 2014-11-06
CN105324190A (zh) 2016-02-10
US20160082491A1 (en) 2016-03-24
KR101759915B1 (ko) 2017-07-20
WO2014177664A1 (fr) 2014-11-06
CN105324190B (zh) 2017-10-31
JP2016516590A (ja) 2016-06-09
RU2635500C2 (ru) 2017-11-13
KR20150139612A (ko) 2015-12-11
US9833823B2 (en) 2017-12-05
JP6138347B2 (ja) 2017-05-31

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