EP1633894B1 - Procede et installation pour produire un feuillard lamine a chaud a structure biphasee - Google Patents

Procede et installation pour produire un feuillard lamine a chaud a structure biphasee Download PDF

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Publication number
EP1633894B1
EP1633894B1 EP04739698.1A EP04739698A EP1633894B1 EP 1633894 B1 EP1633894 B1 EP 1633894B1 EP 04739698 A EP04739698 A EP 04739698A EP 1633894 B1 EP1633894 B1 EP 1633894B1
Authority
EP
European Patent Office
Prior art keywords
cooling
strip
ferrite
temperature
hot
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.)
Revoked
Application number
EP04739698.1A
Other languages
German (de)
English (en)
Other versions
EP1633894A2 (fr
Inventor
Karl-Ernst Hensger
Wolfgang Hennig
Tillmann BÖCHER
Christian Bilgen
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
ArcelorMittal Sestao SL
Original Assignee
SMS Group GmbH
Aceria Compacta de Bizkaia SA
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=33546580&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1633894(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by SMS Group GmbH, Aceria Compacta de Bizkaia SA filed Critical SMS Group GmbH
Publication of EP1633894A2 publication Critical patent/EP1633894A2/fr
Application granted granted Critical
Publication of EP1633894B1 publication Critical patent/EP1633894B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • 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
    • 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
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands
    • 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
    • C21D11/00—Process control or regulation for heat treatments
    • C21D11/005—Process control or regulation for heat treatments for cooling
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/02—Hardening articles or materials formed by forging or rolling, with no further heating beyond that required for the formation
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/005—Ferrite
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/008—Martensite

Definitions

  • a plant for carrying out the method of the invention is characterized by a conventional cooling section of a casting rolling plant, which is arranged behind the last finish rolling stand and has a plurality of controllable water cooling groups with water cooling bars arranged at a distance one behind the other.
  • the cooling bars present in each cooling group are arranged in such a way that a certain amount of water is applied evenly to the upper side of the strip and the underside of the strip of the hot strip.
  • the total amount of water is adjustable by switching individual chill bars on or off during rolling.
  • the number and arrangement of the activated water cooling bar can be variably pre-set to optimally adapt the entire cooling section to the cooling conditions to be set

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Claims (3)

  1. Procédé pour la fabrication d'un feuillard à chaud (10) comprenant une structure biphasique constituée par de la ferrite et de la martensite, dans lequel au moins 70 % de l'austénite sont transformés en ferrite, à partir de l'état laminé à chaud via un refroidissement contrôlé en deux étapes après le laminage de finition à une température du bain inférieure à la température de départ de la martensite dans un tronçon de refroidissement (1, 1') constitué par des groupes de refroidissement à l'eau (31-7, 4) disposés à distance les uns derrière les autres, caractérisé en ce que, en partant d'un acier dont la composition chimique est constituée par : de 0,01 à 0,08 % de C, 0,9 % de Si, de 0,5 à 1,6 % de Mn, 1,2 % de Al, de 0,3 à 1,2 % de Cr, le reste étant du Fe ainsi que les éléments résiduels habituels, pour obtenir un feuillard à chaud (10) comprenant une structure biphasique constituée par de 70 à 95 % de ferrite et de 30 à 5 % de martensite, possédant une résistance mécanique élevée et une capacité de déformation élevée (une résistance à la traction supérieure à 600 MPa, un allongement à la rupture d'au moins 25 %), dans le tronçon de refroidissement d'une installation de coulée continue :
    a) on met en oeuvre le refroidissement contrôlé en deux étapes depuis une température du bain du laminage de finition Tfinish dans laquelle A3 - 100 K < Tfinish < A3 - 50 K jusqu'à une température du bain du bobinage Tcoiling < 300 °C (< la température de départ de la martensite), la vitesse de refroidissement V1,2 dans les deux tronçons de refroidissement étant située entre V = 30 - 150 K/s, de préférence entre V = 50 - 90 K/s ;
    b) on met en oeuvre la première étape de refroidissement jusqu'à l'entrée de la courbe de refroidissement dans le domaine de la ferrite et on utilise ensuite les chaleurs de conversion libérées lors de la transformation de l'austénite en ferrite pour le maintien isotherme de la température du bain obtenue Tconst. avec un temps de maintien de 5 secondes jusqu'au début de la deuxième étape de refroidissement.
  2. Installation de coulée continue pour la fabrication d'un feuillard à chaud (10) comprenant une structure biphasique à partir de l'état laminé à chaud avec un tronçon de refroidissement (1, 1') disposé derrière la dernière cage de laminage de finition (2) comprenant plusieurs groupes de refroidissement à l'eau (31-7, 4) disposés à distance les uns derrière les autres pour la mise en oeuvre du procédé selon la revendication 1, caractérisée en ce que le tronçon de refroidissement (1, 1') présente une longueur habituelle (< 50 m) pour des installations de coulée continue conventionnelles et en ce que, au sein du tronçon de refroidissement, est disposé un nombre correspondant de groupes de refroidissement à l'eau réglables (3,1-7, 4), chacun des groupes de refroidissement à l'eau (3,1-7, 4) contenant plusieurs barres de refroidissement réglables via des soupapes commutables (7), avec lesquelles le côté supérieur de feuillard (10') et le côté inférieur de feuillard (10") du feuillard à chaud (10) qui défile peuvent être sollicités de manière uniforme avec une quantité d'eau, les quantités d'eau pour le côté supérieur de feuillard (10') et le côté inférieur de feuillard (10") pouvant également être réglées l'une par rapport à l'autre.
  3. Installation de coulée continue selon la revendication 2, caractérisée en ce que le dernier groupe de refroidissement à l'eau (4), pour le refroidissement du côté supérieur de feuillard (10') et le côté inférieur de feuillard (10") présente respectivement, en haut et en bas, huit soupapes commutables (7) pour quatre barres de refroidissement.
EP04739698.1A 2003-06-18 2004-06-08 Procede et installation pour produire un feuillard lamine a chaud a structure biphasee Revoked EP1633894B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10327383A DE10327383C5 (de) 2003-06-18 2003-06-18 Anlage zur Herstellung von Warmband mit Dualphasengefüge
PCT/EP2004/006170 WO2004111279A2 (fr) 2003-06-18 2004-06-08 Procede et installation pour produire un feuillard lamine a chaud a structure biphasee

Publications (2)

Publication Number Publication Date
EP1633894A2 EP1633894A2 (fr) 2006-03-15
EP1633894B1 true EP1633894B1 (fr) 2017-04-26

Family

ID=33546580

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04739698.1A Revoked EP1633894B1 (fr) 2003-06-18 2004-06-08 Procede et installation pour produire un feuillard lamine a chaud a structure biphasee

Country Status (14)

Country Link
US (1) US20070175548A1 (fr)
EP (1) EP1633894B1 (fr)
JP (1) JP5186636B2 (fr)
KR (1) KR20060057538A (fr)
CN (1) CN100381588C (fr)
CA (1) CA2529837C (fr)
DE (1) DE10327383C5 (fr)
EG (1) EG23893A (fr)
MY (1) MY136875A (fr)
RU (1) RU2346061C2 (fr)
TW (1) TWI300443B (fr)
UA (1) UA81329C2 (fr)
WO (1) WO2004111279A2 (fr)
ZA (1) ZA200509876B (fr)

Families Citing this family (11)

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CN100447260C (zh) * 2006-06-23 2008-12-31 宝山钢铁股份有限公司 盘式带钢快速冷却试验装置及其使用方法
EP2361699A1 (fr) 2010-02-26 2011-08-31 Siemens Aktiengesellschaft Procédé de refroidissement d'une tôle à l'aide d'un tunnel de refroidissement, tunnel de refroidissement et dispositif de commande et/ou de réglage pour un tunnel de refroidissement
DE102011000089A1 (de) * 2011-01-11 2012-07-12 Thyssenkrupp Steel Europe Ag Verfahren zum Herstellen eines warmgewalzten Stahlflachprodukts
CN103215420B (zh) * 2012-12-31 2015-02-04 西安石油大学 一种大变形管线钢双相组织的获取方法
CN104043660B (zh) * 2013-09-26 2015-09-30 北大方正集团有限公司 一种非调质钢的生产工艺
DE102017206540A1 (de) * 2017-04-18 2018-10-18 Sms Group Gmbh Vorrichtung und Verfahren zum Kühlen von Metallbändern oder -blechen
DE102017127470A1 (de) * 2017-11-21 2019-05-23 Sms Group Gmbh Kühlbalken und Kühlprozess mit variabler Abkühlrate für Stahlbleche
DE102017220891A1 (de) * 2017-11-22 2019-05-23 Sms Group Gmbh Verfahren zum Kühlen eines metallischen Guts und Kühlbalken
CN109576581A (zh) 2018-11-30 2019-04-05 宝山钢铁股份有限公司 一种高表面质量、低屈强比热轧高强度钢板及制造方法
CN110724801B (zh) * 2019-10-28 2021-02-12 重庆科技学院 Cr-Mo超高强钢在奥氏体和铁素体两相区等温热处理后直接深冷处理提高强韧性的方法
RU2724217C1 (ru) * 2020-02-04 2020-06-22 Антон Владимирович Шмаков Способ производства стального проката

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EP0280259A2 (fr) 1987-02-24 1988-08-31 Kawasaki Steel Corporation Méthode pour supprimer les fluctuations de la largeur d'une bande pendant le laminage à chaud
JPH02137608A (ja) 1988-11-15 1990-05-25 Nkk Corp 熱間圧延後の冷却方法
JPH04167916A (ja) 1990-10-30 1992-06-16 Sumitomo Metal Ind Ltd スプレー用給水圧力制御装置
JPH06190419A (ja) 1992-12-24 1994-07-12 Kawasaki Steel Corp ストリップの冷却方法
DE19513999A1 (de) 1995-04-13 1996-10-17 Sundwiger Eisen Maschinen Fertigungslinie und deren Verwendung zum Herstellen von Stahlband
EP0750049A1 (fr) 1995-06-16 1996-12-27 Thyssen Stahl Aktiengesellschaft Acier ferritique; sa fabrication et son utilisation
WO2001047648A2 (fr) 1999-12-27 2001-07-05 Siemens Aktiengesellschaft Procede et commande et/ou de reglage de la section de refroidissement d'un train a feuillards a chaud destine au laminage de bandes metalliques et dispositif associe
WO2003000940A1 (fr) 2001-06-20 2003-01-03 Siemens Aktiengesellschaft Procede de refroidissement d'un produit lamine a chaud et modele de ligne de refroidissement correspondant
GB2445749A (en) 2006-10-18 2008-07-23 Kobe Steel Ltd Dual-phase steel sheet

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EP0072867A1 (fr) 1981-02-20 1983-03-02 Kawasaki Steel Corporation Procede de fabrication d'une bande d'acier lamine a chaud presentant une resistance elevee a la traction ainsi qu'un faible module d'elasticite a cause de sa structure mixte
EP0280259A2 (fr) 1987-02-24 1988-08-31 Kawasaki Steel Corporation Méthode pour supprimer les fluctuations de la largeur d'une bande pendant le laminage à chaud
JPH02137608A (ja) 1988-11-15 1990-05-25 Nkk Corp 熱間圧延後の冷却方法
JPH04167916A (ja) 1990-10-30 1992-06-16 Sumitomo Metal Ind Ltd スプレー用給水圧力制御装置
JPH06190419A (ja) 1992-12-24 1994-07-12 Kawasaki Steel Corp ストリップの冷却方法
DE19513999A1 (de) 1995-04-13 1996-10-17 Sundwiger Eisen Maschinen Fertigungslinie und deren Verwendung zum Herstellen von Stahlband
EP0750049A1 (fr) 1995-06-16 1996-12-27 Thyssen Stahl Aktiengesellschaft Acier ferritique; sa fabrication et son utilisation
WO2001047648A2 (fr) 1999-12-27 2001-07-05 Siemens Aktiengesellschaft Procede et commande et/ou de reglage de la section de refroidissement d'un train a feuillards a chaud destine au laminage de bandes metalliques et dispositif associe
WO2003000940A1 (fr) 2001-06-20 2003-01-03 Siemens Aktiengesellschaft Procede de refroidissement d'un produit lamine a chaud et modele de ligne de refroidissement correspondant
GB2445749A (en) 2006-10-18 2008-07-23 Kobe Steel Ltd Dual-phase steel sheet

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Also Published As

Publication number Publication date
TWI300443B (en) 2008-09-01
TW200502405A (en) 2005-01-16
DE10327383C5 (de) 2013-10-17
CA2529837A1 (fr) 2004-12-23
CA2529837C (fr) 2012-08-21
RU2006101338A (ru) 2006-06-10
CN100381588C (zh) 2008-04-16
JP5186636B2 (ja) 2013-04-17
KR20060057538A (ko) 2006-05-26
WO2004111279A3 (fr) 2005-05-06
WO2004111279A2 (fr) 2004-12-23
UA81329C2 (en) 2007-12-25
EG23893A (en) 2007-12-13
US20070175548A1 (en) 2007-08-02
EP1633894A2 (fr) 2006-03-15
RU2346061C2 (ru) 2009-02-10
DE10327383B4 (de) 2010-10-14
ZA200509876B (en) 2006-11-29
JP2006527790A (ja) 2006-12-07
CN1820086A (zh) 2006-08-16
MY136875A (en) 2008-11-28
DE10327383A1 (de) 2005-02-10

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