EP1954842A1 - Procede de fabrication d'une tole chaude presentant une structure multiphase - Google Patents

Procede de fabrication d'une tole chaude presentant une structure multiphase

Info

Publication number
EP1954842A1
EP1954842A1 EP06806132A EP06806132A EP1954842A1 EP 1954842 A1 EP1954842 A1 EP 1954842A1 EP 06806132 A EP06806132 A EP 06806132A EP 06806132 A EP06806132 A EP 06806132A EP 1954842 A1 EP1954842 A1 EP 1954842A1
Authority
EP
European Patent Office
Prior art keywords
cooling
hot strip
austenite
ferrite
strip
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Withdrawn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
EP06806132A
Other languages
German (de)
English (en)
Inventor
Wolfgang Hennig
August Sprock
Joachim Ohlert
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 Siemag AG
Original Assignee
SMS Demag 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 Demag AG filed Critical SMS Demag AG
Publication of EP1954842A1 publication Critical patent/EP1954842A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • C21D8/041Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing involving a particular fabrication or treatment of ingot or slab
    • C21D8/0415Rapid solidification; Thin strip casting
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18Hardening; Quenching with or without subsequent tempering
    • C21D1/19Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • C21D1/20Isothermal quenching, e.g. bainitic hardening
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/021Modifying 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
    • C21D8/0215Rapid solidification; Thin strip casting
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226Hot rolling
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0263Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • C21D8/0421Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
    • C21D8/0426Hot rolling
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • C21D8/0447Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment
    • C21D8/0463Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment following hot rolling
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D2211/00Microstructure comprising significant phases
    • C21D2211/001Austenite
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D2211/00Microstructure comprising significant phases
    • C21D2211/002Bainite
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D2211/00Microstructure comprising significant phases
    • C21D2211/005Ferrite

Abstract

L'invention concerne un procédé de fabrication, dans des conditions de lamination à chaud, d'une tôle chaude en acier TRIP (transformation induced plasticity) présentant une structure multiphase ayant à la fois une grande résistance et des propriétés de mise en forme particulièrement bonnes, ledit procédé étant réalisé à partir d'une composition chimique prédéterminée du type d'acier utilisé comprenant de 0,12 à 0,25 % de C ; de 0,05 à 1,8 % de Si ; de 1,0 à 2,0 % de Mn ; le reste étant du Fe ainsi que les éléments d'accompagnement usuels, par une combinaison de laminages et de refroidissements, afin d'obtenir une structure contenant de 40 à 70 % de ferrite, de 15 à 45 % de bainite et de 5 à 20 % de résidu d'austénite, le laminage de finition de la tôle chaude (7) permettant d'obtenir un grain d'austénite très fin (d < 8 µm) lors de la dernière transformation (6') à une température comprise entre 770 et 830 °C légèrement supérieure à Ar3 dans le domaine de l'austénite métastable, et un refroidissement contrôlé en deux étapes (10, 11, 12) étant effectué après le dernier laminage (6') de la tôle chaude (7) à une température de tôle dans le domaine de formation de bainite entre 320 et 480 °C, avec un temps de maintien aux environ de 650 à 730 °C, le début dudit temps de maintien étant déterminé par l'entrée de la courbe de refroidissement dans le domaine de la ferrite et sa durée étant déterminée par un taux d'austénite d'au moins 40 % de la ferrite.
EP06806132A 2005-10-25 2006-10-10 Procede de fabrication d'une tole chaude presentant une structure multiphase Withdrawn EP1954842A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005051052A DE102005051052A1 (de) 2005-10-25 2005-10-25 Verfahren zur Herstellung von Warmband mit Mehrphasengefüge
PCT/EP2006/009755 WO2007048497A1 (fr) 2005-10-25 2006-10-10 Procede de fabrication d’une tole chaude presentant une structure multiphase

Publications (1)

Publication Number Publication Date
EP1954842A1 true EP1954842A1 (fr) 2008-08-13

Family

ID=37459318

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06806132A Withdrawn EP1954842A1 (fr) 2005-10-25 2006-10-10 Procede de fabrication d'une tole chaude presentant une structure multiphase

Country Status (14)

Country Link
US (1) US20090214377A1 (fr)
EP (1) EP1954842A1 (fr)
JP (1) JP5130221B2 (fr)
KR (1) KR20080063307A (fr)
CN (1) CN101297049B (fr)
AU (1) AU2006308245B2 (fr)
BR (1) BRPI0617753A2 (fr)
CA (1) CA2625564A1 (fr)
DE (1) DE102005051052A1 (fr)
RU (1) RU2398028C2 (fr)
TW (1) TW200724690A (fr)
UA (1) UA90436C2 (fr)
WO (1) WO2007048497A1 (fr)
ZA (1) ZA200802524B (fr)

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CN101802238B (zh) * 2007-08-01 2012-05-23 株式会社神户制钢所 弯曲加工性和耐疲劳强度优异的高强度钢板
DE102010050647A1 (de) * 2009-11-21 2011-05-26 Sms Siemag Aktiengesellschaft Anlage und Verfahren zum Gießen und Walzen von Metall
CN102133579B (zh) * 2010-01-27 2013-05-01 中国钢铁股份有限公司 减少蚀坑产生的钢胚热轧制程
PL2631307T3 (pl) * 2010-10-22 2019-09-30 Nippon Steel & Sumitomo Metal Corporation Blacha stalowa cienka i sposób wytwarzania blachy stalowej cienkiej
US9896736B2 (en) 2010-10-22 2018-02-20 Nippon Steel & Sumitomo Metal Corporation Method for manufacturing hot stamped body having vertical wall and hot stamped body having vertical wall
CN103314120B (zh) 2010-10-22 2014-11-05 新日铁住金株式会社 热锻压成形体的制造方法及热锻压成形体
WO2012064129A2 (fr) * 2010-11-10 2012-05-18 (주)포스코 Procédé pour fabriquer un acier à plasticité induite par transformation laminé à froid/laminé à chaud de haute résistance ayant une résistance à la traction d'une valeur de 590 mpa, une excellente usinabilité, et un faible écart de propriété mécanique
PL2730666T3 (pl) * 2011-07-06 2018-11-30 Nippon Steel & Sumitomo Metal Corporation Sposób wytwarzania blachy stalowej cienkiej walcowanej na zimno
KR20140068186A (ko) * 2011-09-13 2014-06-05 타타 스틸 이즈무이덴 베.뷔. 고강도 용융침지아연도금 강 스트립
CZ2011612A3 (cs) 2011-09-30 2013-07-10 Západoceská Univerzita V Plzni Zpusob dosazení TRIP struktury ocelí s vyuzitím deformacního tepla
CN102586562B (zh) * 2012-03-30 2013-08-21 河北钢铁集团有限公司 一种防震抗灾用热轧trip钢板的生产工艺
JP6232045B2 (ja) * 2012-03-30 2017-11-15 フォエスタルピネ スタール ゲゼルシャフト ミット ベシュレンクテル ハフツングVoestalpine Stahl Gmbh 高強度冷間圧延鋼板およびそのような鋼板を作製する方法
CZ304832B6 (cs) * 2013-04-13 2014-11-26 Západočeská Univerzita V Plzni Způsob tepelného zpracování polotovarů z TRIP oceli
CN103898404B (zh) * 2014-04-28 2015-12-09 莱芜钢铁集团有限公司 一种钒微合金化热轧相变诱导塑性钢及制备方法
CN104233092B (zh) * 2014-09-15 2016-12-07 首钢总公司 一种热轧trip钢及其制备方法
US11401571B2 (en) * 2015-02-20 2022-08-02 Nippon Steel Corporation Hot-rolled steel sheet
CN105063309B (zh) * 2015-07-31 2017-11-17 首钢总公司 一种提高低碳微合金钢强度的方法
WO2017109540A1 (fr) * 2015-12-21 2017-06-29 Arcelormittal Procédé de fabrication d'une tôle d'acier à haute résistance ayant une ductilité et une aptitude au formage améliorées et tôle d'acier ainsi obtenue
CN105821190B (zh) * 2016-06-06 2019-01-08 日照宝华新材料有限公司 基于esp薄板坯连铸连轧流程生产中碳热轧trip钢的方法
CN106048176B (zh) * 2016-06-06 2019-01-08 日照宝华新材料有限公司 基于esp薄板坯连铸连轧流程生产低碳热轧trip钢的方法
MX2019000576A (es) 2016-08-05 2019-09-02 Nippon Steel Corp Lámina de acero y lámina de acero chapada.
KR101917448B1 (ko) * 2016-12-20 2018-11-09 주식회사 포스코 용접성 및 연성이 우수한 고강도 열연강판 및 이의 제조방법
CN108531811B (zh) * 2018-05-16 2020-05-01 东北大学 一种铸轧trip钢薄带的制备方法
RU2689348C1 (ru) * 2018-06-26 2019-05-27 Публичное акционерное общество "Северсталь" (ПАО "Северсталь") Способ производства горячекатаного проката повышенной прочности
AT525283B1 (de) * 2021-10-29 2023-02-15 Primetals Technologies Austria GmbH Verfahren zur Herstellung eines Dualphasenstahlbands in einer Gieß-Walz-Verbundanlage, ein mit dem Verfahren hergestelltes Dualphasenstahlband und eine Gieß-Walz-Verbundanlage
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See references of WO2007048497A1 *

Also Published As

Publication number Publication date
AU2006308245B2 (en) 2010-09-30
CA2625564A1 (fr) 2007-05-03
RU2398028C2 (ru) 2010-08-27
UA90436C2 (ru) 2010-04-26
AU2006308245A1 (en) 2007-05-03
BRPI0617753A2 (pt) 2011-08-02
KR20080063307A (ko) 2008-07-03
CN101297049B (zh) 2012-01-11
JP5130221B2 (ja) 2013-01-30
AU2006308245A2 (en) 2008-06-19
US20090214377A1 (en) 2009-08-27
JP2009512783A (ja) 2009-03-26
CN101297049A (zh) 2008-10-29
RU2008120667A (ru) 2009-12-10
WO2007048497A1 (fr) 2007-05-03
DE102005051052A1 (de) 2007-04-26
ZA200802524B (en) 2009-06-24
TW200724690A (en) 2007-07-01

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Inventor name: DIE ANDERE ERFINDER HABEN AUF IHRE NENNUNG VERZICH