EP0823294A1 - Procédé de fabrication d'une bande en acier basse et ultra basse de teneur en carbon - Google Patents

Procédé de fabrication d'une bande en acier basse et ultra basse de teneur en carbon Download PDF

Info

Publication number
EP0823294A1
EP0823294A1 EP97250225A EP97250225A EP0823294A1 EP 0823294 A1 EP0823294 A1 EP 0823294A1 EP 97250225 A EP97250225 A EP 97250225A EP 97250225 A EP97250225 A EP 97250225A EP 0823294 A1 EP0823294 A1 EP 0823294A1
Authority
EP
European Patent Office
Prior art keywords
strip
rolling
low
temperature
carbon
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Withdrawn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
EP97250225A
Other languages
German (de)
English (en)
Inventor
Peter Ing. Meyer
Ulrich Dipl.-Ing. Skoda-Dopp
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.)
Vodafone GmbH
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
Application filed by Mannesmann AG filed Critical Mannesmann AG
Publication of EP0823294A1 publication Critical patent/EP0823294A1/fr
Withdrawn legal-status Critical Current

Links

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
    • B21B1/22—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
    • 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
    • B21B1/463—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 continuous process, i.e. the cast not being cut before rolling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • 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
    • B21B2201/00—Special rolling modes
    • B21B2201/04—Ferritic 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/021—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular fabrication or treatment of ingot or slab
    • C21D8/0215—Rapid solidification; Thin strip casting

Definitions

  • the invention relates to a method and a plant for producing tape low-carbon and ultra-low-carbon steels according to the generic term of Claims 1 and 4.
  • the intermediate strip which is hot-rolled in this way, is divided into partial lengths by means of band shears, which are wound into coils and later unwound again for further hot rolling.
  • the strip-like material is heated again by inductive heating to a hot rolling temperature above 1100 ° C .; the second hot rolling is carried out at temperatures above Ar 3 . This is followed immediately by cooling to a temperature below the transition point Ar 3, preferably in the range from 600 to 250 ° C.
  • the strip material thus produced is then finish-rolled by cold rolling on one or more stands connected in series and wound into coils.
  • the known method aims at the production of cold rolled strip with one as little energy expenditure as possible. To do this, use the method of casting close to the final dimension (thin slab production) and does that Hot rolling in part with the heat remaining from the continuous casting process out.
  • the object of the present invention is to provide a method and a system for Production of strips from low-carbon and ultra-low-carbon steels to create the kind mentioned in the beginning with the or in an endless process hot rolled ferritic strip can be produced using the casting heat, whereby a control element to achieve the recrystallization temperature in the bundle of over 700 ° C is created.
  • the invention proposes that the ferritic rolled finished strip is coiled into a bundle, with a coiling temperature ⁇ 700 ° C is set.
  • the reel temperature is ⁇ 700 ° C already during the last rolling passes and / or immediately before the reel is rewound
  • the tape is adjusted and the finished tape is wound up at this temperature.
  • the targeted setting of this temperature will be the previously missing Control facility created to take advantage of the casting and Rolling temperatures in the area below the ferritic rolling Conversion point (below 738 ° C) and on the other hand at minimum possible energy use the required reel temperature of over 700 ° C to reach.
  • Reel temperature of ⁇ 700 ° C during reeling and / or in the finished bundle adjust.
  • a facility for performing the above method is characterized by the features of claim 4 characterized.
  • the Heating device designed to heat the finished strip as an induction heater is. If namely the heating device in the area of the last roll stand (s) is arranged, so is a very quick response for temperature regulation required. This is determined by the intensity of the coils of an induction heating device enables.
  • the heating device is used to heat the federal government train tunnel furnace arranged behind the reel device. It can also Heater can be designed as a conventional hood furnace.
  • a targeted temperature profile e.g. the cooling can be carried out in the bunch. It also becomes even Temperature achieved in the coil, which is particularly quicker cooling outer turns or edges of the coil is very important.
  • the tunnel oven behind the reel can be arranged perpendicular to the rolling axis and at the same time serve as storage for the bundles.
  • a system is roughly shown schematically, which for Implementation of the method according to the invention is suitable.
  • the facility exists from the continuous casting device 1 for producing a thin slab 2, which in Subsequent arch structure of the casting plant after solidification into a horizontal Outlet direction is guided.
  • a device 10 is used to set one for the Rolling process defined piercing temperature by the from the rolling process resulting temperature maintained or by radiation of the thin slab is reduced. If the temperature coming from the casting process If thin slab is too low for piercing in the rolling mill, heat is added.
  • Hot rolling device 4 for producing an intermediate belt.
  • the the intermediate strip leaving the hot rolling device 4 is in a cooling device 5 subjected to an accelerated cooling by means of cooling liquid, the selected temperatures according to the invention can be set. That the The intermediate belt leaving the cooling device now has a temperature below 738 ° C and is at these temperatures in a finishing mill in at least three Roll passes ferritically rolled into a strip ⁇ 0.7 mm thick.
  • an inductive heating device 7 is provided on rolling mill 6, with which the finished belt is heated to a temperature ⁇ 700 ° C, with which the belt in the subsequent reel device is wound into a bundle. After The belt is reached with the help of the cross-cut shear to achieve the desired coil weight 8 separated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Metal Rolling (AREA)
EP97250225A 1996-08-05 1997-07-31 Procédé de fabrication d'une bande en acier basse et ultra basse de teneur en carbon Withdrawn EP0823294A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19632448 1996-08-05
DE1996132448 DE19632448A1 (de) 1996-08-05 1996-08-05 Verfahren und Anlage zur Herstellung von Band aus niedriggekohlten und ultraniedriggekohlten Stählen

Publications (1)

Publication Number Publication Date
EP0823294A1 true EP0823294A1 (fr) 1998-02-11

Family

ID=7802412

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97250225A Withdrawn EP0823294A1 (fr) 1996-08-05 1997-07-31 Procédé de fabrication d'une bande en acier basse et ultra basse de teneur en carbon

Country Status (2)

Country Link
EP (1) EP0823294A1 (fr)
DE (1) DE19632448A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999050463A1 (fr) * 1998-03-27 1999-10-07 Corus Staal Bv Procede de production d'un acier de formage ayant de bonnes caracteristiques de formage et acier de formage a basse teneur en carbone
WO2002011915A1 (fr) * 2000-08-05 2002-02-14 Sms Demag Aktiengesellschaft Procede et installation de fabrication de produits plats minces
WO2008110133A1 (fr) * 2007-03-12 2008-09-18 Sms Siemag Ag Procédé de traitement de tôles
US7832460B2 (en) 2005-04-07 2010-11-16 Giovanni Arvedi Process and system for manufacturing metal strips and sheets without discontinuity between continuous casting and rolling
WO2011076544A3 (fr) * 2009-12-23 2011-08-18 Sms Siemag Ag Procédé de laminage à chaud d'une brame et laminoir à chaud
AT509707A4 (de) * 2010-05-04 2011-11-15 Siemens Vai Metals Tech Gmbh Verfahren zum warmwalzen von stahlbändern und warmwalzstrasse
RU2463127C2 (ru) * 2007-11-22 2012-10-10 Сименс Фаи Металз Текнолоджиз Гмбх Способ непрерывного аустенитного проката изготовленной в процессе непрерывной отливки черновой полосы и комбинированная литейная и прокатная установка для выполнения способа

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1903554A1 (de) * 1968-01-24 1969-08-28 Sumitomo Metal Ind Verfahren zur Herstellung von warmgewalztem Bandstahl
DE3444038A1 (de) * 1984-12-03 1986-06-05 Ruhrgas Ag, 4300 Essen Haubenofen und verfahren zum waermebehandeln von behandlungsgut
EP0306076A1 (fr) * 1987-09-01 1989-03-08 Hoogovens Groep B.V. Fabrication de bandes d'acier formables
EP0370575A1 (fr) * 1988-11-24 1990-05-30 Hoogovens Groep B.V. Procédé pour la fabrication d'acier déformable
WO1992008557A1 (fr) * 1990-11-13 1992-05-29 Mannesmann Aktiengesellschaft Systeme et procede servant a former une bande mince et plate d'acier lamine a chaud
EP0499850A1 (fr) * 1991-02-06 1992-08-26 LOI Thermprocess GmbH Procédé et four continu pour le traitement thermique d'articles
DE4322924C1 (de) * 1993-07-05 1994-10-27 Mannesmann Ag Verfahren und Vorrichtung zum Herstellen von warmgewalztem kohlenstoffhaltigem Stahlband
DE19520832A1 (de) * 1994-10-20 1996-04-25 Mannesmann Ag Verfahren und Vorrichtung zur Herstellung von Stahlband mit Kaltwalzeigenschaften
DE19600990A1 (de) * 1996-01-14 1997-07-17 Thyssen Stahl Ag Verfahren zum Warmwalzen von Stahlbändern

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1903554A1 (de) * 1968-01-24 1969-08-28 Sumitomo Metal Ind Verfahren zur Herstellung von warmgewalztem Bandstahl
DE3444038A1 (de) * 1984-12-03 1986-06-05 Ruhrgas Ag, 4300 Essen Haubenofen und verfahren zum waermebehandeln von behandlungsgut
EP0306076A1 (fr) * 1987-09-01 1989-03-08 Hoogovens Groep B.V. Fabrication de bandes d'acier formables
EP0370575A1 (fr) * 1988-11-24 1990-05-30 Hoogovens Groep B.V. Procédé pour la fabrication d'acier déformable
WO1992008557A1 (fr) * 1990-11-13 1992-05-29 Mannesmann Aktiengesellschaft Systeme et procede servant a former une bande mince et plate d'acier lamine a chaud
EP0499850A1 (fr) * 1991-02-06 1992-08-26 LOI Thermprocess GmbH Procédé et four continu pour le traitement thermique d'articles
DE4322924C1 (de) * 1993-07-05 1994-10-27 Mannesmann Ag Verfahren und Vorrichtung zum Herstellen von warmgewalztem kohlenstoffhaltigem Stahlband
DE19520832A1 (de) * 1994-10-20 1996-04-25 Mannesmann Ag Verfahren und Vorrichtung zur Herstellung von Stahlband mit Kaltwalzeigenschaften
DE19600990A1 (de) * 1996-01-14 1997-07-17 Thyssen Stahl Ag Verfahren zum Warmwalzen von Stahlbändern

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999050463A1 (fr) * 1998-03-27 1999-10-07 Corus Staal Bv Procede de production d'un acier de formage ayant de bonnes caracteristiques de formage et acier de formage a basse teneur en carbone
WO2002011915A1 (fr) * 2000-08-05 2002-02-14 Sms Demag Aktiengesellschaft Procede et installation de fabrication de produits plats minces
KR100796645B1 (ko) * 2000-08-05 2008-01-22 에스엠에스 데마그 악티엔게젤샤프트 얇고 평탄한 제품을 제조하는 방법 및 장치
US7491276B2 (en) 2000-08-05 2009-02-17 Sms Demag Ag Production method and installation for producing thin flat products
US7832460B2 (en) 2005-04-07 2010-11-16 Giovanni Arvedi Process and system for manufacturing metal strips and sheets without discontinuity between continuous casting and rolling
WO2008110133A1 (fr) * 2007-03-12 2008-09-18 Sms Siemag Ag Procédé de traitement de tôles
CN101652195B (zh) * 2007-03-12 2013-01-23 Sms西马克股份公司 用于处理金属板的方法
RU2463127C2 (ru) * 2007-11-22 2012-10-10 Сименс Фаи Металз Текнолоджиз Гмбх Способ непрерывного аустенитного проката изготовленной в процессе непрерывной отливки черновой полосы и комбинированная литейная и прокатная установка для выполнения способа
WO2011076544A3 (fr) * 2009-12-23 2011-08-18 Sms Siemag Ag Procédé de laminage à chaud d'une brame et laminoir à chaud
CN102655959A (zh) * 2009-12-23 2012-09-05 Sms西马格股份公司 用于热轧制板坯的方法以及热轧机
KR101421976B1 (ko) * 2009-12-23 2014-07-22 에스엠에스 지마크 악티엔게젤샤프트 슬래브 열간 압연 방법 및 열간 압연기
RU2528560C2 (ru) * 2009-12-23 2014-09-20 Смс Зимаг Аг Способ горячей прокатки сляба и стан горячей прокатки
CN102655959B (zh) * 2009-12-23 2016-05-18 Sms集团有限责任公司 用于热轧制板坯的方法以及热轧机
AT509707B1 (de) * 2010-05-04 2011-11-15 Siemens Vai Metals Tech Gmbh Verfahren zum warmwalzen von stahlbändern und warmwalzstrasse
AT509707A4 (de) * 2010-05-04 2011-11-15 Siemens Vai Metals Tech Gmbh Verfahren zum warmwalzen von stahlbändern und warmwalzstrasse

Also Published As

Publication number Publication date
DE19632448A1 (de) 1998-02-12

Similar Documents

Publication Publication Date Title
DE69814513T2 (de) Walzverfahren und Walzstrasse für dünne Flacherzeugnisse
EP0804300B1 (fr) Procede et dispositif de production d'une feuille d'acier presentant les proprietes d'un produit lamine a froid
EP2035587B1 (fr) Procédé et dispositif de production de matériau de laminage de feuillards à chaud en acier au silicium à base de brames fines
DE3241745C2 (de) Verfahren zum Herstellen von warmgewalztem Stahlband aus stranggegossenem Vormaterial in unmittelbar aufeinanderfolgenden Arbeitsschritten
EP1951451B1 (fr) Procede de fabrication d'un feuillard d'acier lamine a chaud et installation combinee de coulee et de laminage en vue de la mise en oeuvre du procede
EP0889762B1 (fr) Procede pour fabriquer un feuillard d'acier lamine a chaud
DE69102280T2 (de) Verfahren und anlage zum herstellen von direkt einer warmwalzstrasse erzeugter stahlbandcoils mit kaltwalzeigenschaften.
EP1305122B1 (fr) Procede et installation de fabrication de produits plats minces
DE4402402B4 (de) Verfahren zur Herstellung von warmgewalztem Stahlband aus stranggegossenem Vormaterial und Anlage zur Durchführung des Verfahrens
EP1047510B1 (fr) Procede et installation de production continue de produits plats et minces lamines a chaud
WO2003064069A1 (fr) Procede et dispositif de production de feuillard lamine a chaud a partir d'aciers austenitiques inoxydables
EP0761326A1 (fr) Installation pour la production d'une bande mince laminée à chaud
DE68905572T2 (de) Verfahren zur herstellung von verformbarem stahl.
DE19600990C2 (de) Verfahren zum Warmwalzen von Stahlbändern
EP0595282B2 (fr) Procédé et installation pour la fabrication de bandes d'acier laminées à chaud, en particulier à partir d'une ébauche de bande coulée en continu
DE3525457C2 (de) Walzwerk zur Herstellung warmgewalzter Stahlbänder
DE19520832A1 (de) Verfahren und Vorrichtung zur Herstellung von Stahlband mit Kaltwalzeigenschaften
EP0823294A1 (fr) Procédé de fabrication d'une bande en acier basse et ultra basse de teneur en carbon
EP1641573B1 (fr) Dispositif pour la production de feuillard d'acier lamine a chaud, en particulier a partir d'ebauche en bande coulee en continu
DE102020214427A1 (de) Verfahren zum Herstellen eines Warmbandes mittels einer Gießwalzanlage
WO1999058263A1 (fr) Procede et systeme pour produire un feuillard d'acier
DE19538341A1 (de) Warmbandproduktionsanlage für das Walzen von dünnem Walzband
AT525283B1 (de) Verfahren zur Herstellung eines Dualphasenstahlbands in einer Gieß-Walz-Verbundanlage, ein mit dem Verfahren hergestelltes Dualphasenstahlband und eine Gieß-Walz-Verbundanlage
DE19749706C1 (de) Verfahren zur Herstellung von dünnem warmgewalztem Stahlband
EP0879100B1 (fr) Procede et dispositif pour le laminage reversible de feuillards metalliques

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT NL

17P Request for examination filed

Effective date: 19980701

AKX Designation fees paid

Free format text: DE ES FR GB IT NL

RBV Designated contracting states (corrected)

Designated state(s): DE ES FR GB IT NL

17Q First examination report despatched

Effective date: 19990511

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19991125