UA90436C2 - METHOD For producing Hot rolled Strips with multiphase STRUCTURE AND hot strip - Google Patents

METHOD For producing Hot rolled Strips with multiphase STRUCTURE AND hot strip

Info

Publication number
UA90436C2
UA90436C2 UAA200807183A UAA200807183A UA90436C2 UA 90436 C2 UA90436 C2 UA 90436C2 UA A200807183 A UAA200807183 A UA A200807183A UA A200807183 A UAA200807183 A UA A200807183A UA 90436 C2 UA90436 C2 UA 90436C2
Authority
UA
Ukraine
Prior art keywords
hot
austenite
hot strip
strip
ferrite
Prior art date
Application number
UAA200807183A
Other languages
Russian (ru)
Ukrainian (uk)
Inventor
Вольфганг Хенниг
Аугуст Шпрок
Йоахим ОЛЕРТ
Кристиан БИЛЬГЕН
Original Assignee
Смс Зимаг Акциенгезелльшафт
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 Смс Зимаг Акциенгезелльшафт filed Critical Смс Зимаг Акциенгезелльшафт
Publication of UA90436C2 publication Critical patent/UA90436C2/en

Links

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
    • C21D8/04—Modifying 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
    • C21D8/041—Modifying 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
    • C21D8/0415—Rapid solidification; Thin strip casting
    • 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
    • C21D8/04—Modifying 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
    • 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
    • C21D1/20—Isothermal quenching, e.g. bainitic hardening
    • 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
    • C21D8/021—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
    • 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
    • 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
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0263—Modifying 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
    • 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
    • C21D8/04—Modifying 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
    • C21D8/0421—Modifying 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
    • C21D8/0426—Hot 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
    • C21D8/04—Modifying 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
    • C21D8/0447—Modifying 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
    • C21D8/0463—Modifying 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
    • 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
    • C21D2211/001—Austenite
    • 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
    • C21D2211/002—Bainite
    • 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

Landscapes

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

Abstract

A method for the production of hot strip referred to as TRIP steel (transformation induced plasticity), with a multiphase structure and with outstandingly good deformation properties along with high strengths, from the hot-rolled state, the invention proposes a method which is earned oat with a predetermined chemical composition of the steel grade used within the limits 0.12 - 0.25 % C; 0.05 - 1.8 % Si; 1.0 - 2.0 % Mn; the remainder Fe and customary accompanying elements and with a combined railing and cooling strategy in such a way mat a structure comprising 40 – 70 % ferrite, 15 – 45 % bainite and 5 – 20 % residual austenite is obtained, wherein the finish rolling of the hot strip (7) is performed to set a very fine austenite grain (d<8 μm) in the final forming operation (6') at temperatures between 770 and 830 °C just above Ar3 in the region of the metastable austenite, and a controlled two-stage cooling (10, 11, 12) is carried out after the last rolling stand (6') of the hot strip (7) to a strip temperature in the range of bainite formation of 320 – with a holding time of about 650 – , the beginning of which is determined by the entry of the cooling curve into the feritte region and the duration of which is determined by the transformation of the austenite into at least 40 % ferrite.
UAA200807183A 2005-10-25 2006-10-10 METHOD For producing Hot rolled Strips with multiphase STRUCTURE AND hot strip UA90436C2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005051052A DE102005051052A1 (en) 2005-10-25 2005-10-25 Process for the production of hot strip with multiphase structure

Publications (1)

Publication Number Publication Date
UA90436C2 true UA90436C2 (en) 2010-04-26

Family

ID=37459318

Family Applications (1)

Application Number Title Priority Date Filing Date
UAA200807183A UA90436C2 (en) 2005-10-25 2006-10-10 METHOD For producing Hot rolled Strips with multiphase STRUCTURE AND hot strip

Country Status (14)

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

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KR101181028B1 (en) * 2007-08-01 2012-09-07 가부시키가이샤 고베 세이코쇼 High-strength steel sheet excellent in bendability and fatigue strength
DE102010050647A1 (en) * 2009-11-21 2011-05-26 Sms Siemag Aktiengesellschaft Plant and method for casting and rolling metal
CN102133579B (en) * 2010-01-27 2013-05-01 中国钢铁股份有限公司 Steel blank hot rolling process reducing generation of etch pit
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
WO2012053642A1 (en) 2010-10-22 2012-04-26 新日本製鐵株式会社 Method for manufacturing hot stamped body having vertical wall, and hot stamped body having vertical wall
CN103314120B (en) 2010-10-22 2014-11-05 新日铁住金株式会社 Process for producing hot stamp molded article, and hot stamp molded article
WO2012064129A2 (en) * 2010-11-10 2012-05-18 (주)포스코 Method for manufacturing high-strength cold-rolled/hot-rolled trip steel having a tensile strength of 590 mpa grade, superior workability, and low mechanical-property deviation
MX363038B (en) * 2011-07-06 2019-03-01 Nippon Steel & Sumitomo Metal Corp Method for producing cold-rolled steel sheet.
MX2014002922A (en) * 2011-09-13 2014-05-21 Tata Steel Ijmuiden Bv High strength hot dip galvanised steel strip.
CZ2011612A3 (en) * 2011-09-30 2013-07-10 Západoceská Univerzita V Plzni Method of achieving TRIP microstructure in steels by deformation heat
CN104169444B (en) * 2012-03-30 2017-03-29 奥钢联钢铁有限责任公司 The method of high strength cold rolled steel plate and this steel plate of production
CN102586562B (en) * 2012-03-30 2013-08-21 河北钢铁集团有限公司 Production process for shock-proof disaster-relieving hot rolled transformation-induced plasticity (TRIP) steel plates
CZ304832B6 (en) * 2013-04-13 2014-11-26 Západočeská Univerzita V Plzni Heat treatment process of TRIP steel half-finished products
CN103898404B (en) * 2014-04-28 2015-12-09 莱芜钢铁集团有限公司 A kind of vanadium micro-alloying hot-rolled transformation induction plasticity steel and preparation method
CN104233092B (en) * 2014-09-15 2016-12-07 首钢总公司 A kind of analysis of producing hot rolled TRIP and preparation method thereof
WO2016132542A1 (en) * 2015-02-20 2016-08-25 新日鐵住金株式会社 Hot-rolled steel sheet
CN105063309B (en) * 2015-07-31 2017-11-17 首钢总公司 A kind of method for improving low-carbon microalloy hardness of steel
WO2017109538A1 (en) 2015-12-21 2017-06-29 Arcelormittal Method for producing a steel sheet having improved strength, ductility and formability
WO2017109540A1 (en) * 2015-12-21 2017-06-29 Arcelormittal Method for producing a high strength steel sheet having improved ductility and formability, and obtained steel sheet
CN106048176B (en) * 2016-06-06 2019-01-08 日照宝华新材料有限公司 Method based on ESP bar strip continuous casting and rolling flow path production low-carbon hot-rolling TRIP steel
CN105821190B (en) * 2016-06-06 2019-01-08 日照宝华新材料有限公司 Method based on carbon analysis of producing hot rolled TRIP in the production of ESP bar strip continuous casting and rolling flow path
BR112019000766B8 (en) 2016-08-05 2023-03-14 Nippon Steel & Sumitomo Metal Corp STEEL SHEET
KR101917448B1 (en) * 2016-12-20 2018-11-09 주식회사 포스코 High strength hot-rolled steel sheet having excellent weldability and ductility, and mathod for manufacturing same
CN108531811B (en) * 2018-05-16 2020-05-01 东北大学 Preparation method of cast-rolled TRIP steel thin strip
RU2689348C1 (en) * 2018-06-26 2019-05-27 Публичное акционерное общество "Северсталь" (ПАО "Северсталь") Method for production of hot-rolled high-strength rolled metal
AT525283B1 (en) * 2021-10-29 2023-02-15 Primetals Technologies Austria GmbH Method for producing a dual-phase steel strip in a combined casting and rolling plant, a dual-phase steel strip produced using the method and a combined casting and rolling facility
CN114645187A (en) * 2022-01-29 2022-06-21 安阳钢铁股份有限公司 Non-quenched and tempered 950 MPa-grade high-strength strapping steel and production method thereof
CN115976396B (en) * 2022-12-30 2024-04-30 包头钢铁（集团）有限责任公司 High-strength corrosion-resistant hot rolled steel strip Q550NQR1 for container and production method thereof

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JP2000087141A (en) * 1998-09-10 2000-03-28 Nkk Corp Production of thin high tensile hot rolled steel strip containing residual austenite
JP3081197B1 (en) * 1999-02-17 2000-08-28 株式会社神戸製鋼所 High strength steel sheet with excellent workability and fatigue properties
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Also Published As

Publication number Publication date
AU2006308245B2 (en) 2010-09-30
CN101297049B (en) 2012-01-11
EP1954842A1 (en) 2008-08-13
AU2006308245A1 (en) 2007-05-03
CA2625564A1 (en) 2007-05-03
TW200724690A (en) 2007-07-01
DE102005051052A1 (en) 2007-04-26
JP5130221B2 (en) 2013-01-30
JP2009512783A (en) 2009-03-26
US20090214377A1 (en) 2009-08-27
KR20080063307A (en) 2008-07-03
AU2006308245A2 (en) 2008-06-19
RU2398028C2 (en) 2010-08-27
ZA200802524B (en) 2009-06-24
WO2007048497A1 (en) 2007-05-03
CN101297049A (en) 2008-10-29
RU2008120667A (en) 2009-12-10
BRPI0617753A2 (en) 2011-08-02

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