EP1954842A1 - Verfahren zur herstellung von warmband mit mehrphasengefüge - Google Patents

Verfahren zur herstellung von warmband mit mehrphasengefüge

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Withdrawn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)
French (fr)
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/de
Withdrawn legal-status Critical Current

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

Definitions

  • the invention relates to a method for the production of hot strip with TRIP steel (transform-molded pjasticity) having a multi-phase structure with extremely good deformation properties from the hot-rolled state by controlled cooling after the last rolling stand.
  • the setting of the microstructure is complex with TRIP steels, because in addition to ferrite and bainite a third phase exists as retained austenite or after a subsequent deformation as martensite.
  • Today TRIP steels are usually produced in a two-stage annealing cycle. Starting material is hot or cold strip, in which by an annealing in the intercritical phase space, an approximately 50% ⁇ - 50% y - output structure is set. Due to the higher solubility of the austenite for carbon there is a higher carbon concentration. After the annealing treatment, rapid cooling takes place, past the ferrite and perlite areas into the bainite area, in which it is kept isothermal for some time.
  • the austenite partially converts to bainite and the remaining austenite is simultaneously further enriched in carbon.
  • the martensite start temperature M s is reduced to values below the ambient temperature and the retained austenite consequently also remains at ambient temperature.
  • the final structure consists of 40 - 70% ferrite, 15 - 40% bainite and 5 - 20% retained austenite.
  • TRIP steels The special effect of TRIP steels is the transformation of the metastable austenite to martensite * when an external plastic deformation occurs.
  • the transformation of austenite into martensite causes an increase in volume, which is not carried by austenite alone, but also by the surrounding microstructure constituents.
  • the ferritic matrix is plasticized, which in turn leads to higher solidification and overall leads to higher plastic strains.
  • the result for steels produced in this way is an extraordinary combination of high strength and high ductility, which makes them particularly suitable for use in the automotive industry.
  • EP 1 396 549 describes a process for producing a pearlite-free hot-rolled steel strip with TRIP properties in a continuous working process, in which a molten steel containing, in addition to iron and unavoidable impurities, 0.06-0.3% C ; 0.1-3.0% Si; 0.3-1.1% Mn (the sum of Si and Mn being 1.5- 3.5%) and 0.005-0.15% of at least one of the elements Ti or Nb as an essential component and optionally one or more several of the following elements max. 0.8% Cr; Max. 0.8% Cu; Max. Contains 1.0% Ni, is poured into thin slabs.
  • These thin slabs are annealed with a 850 to 1050 0 C amounting inlet temperature in an annealing furnace for an annealing time of 10 to 60 minutes at 1000 to 1200 0 C. After descaling, the thin slabs are then finish hot rolled in the range of 750 to 1000 0 C and then cooled to a reel temperature of 300 - to 530 0 C.
  • the controlled cooling is carried out in two stages with a cooling rate of the first stage of at least 150 K / s, preferably 300 K / s and a cooling pause of 4 to 8 seconds. Alternatively, it is proposed to carry out the controlled cooling continuously at a cooling rate of 10 to 70 K / s without stopping.
  • the cooling is controlled so that the hot strip in a first stage within 1 to 7 seconds to a temperature of about 80 0 C above and then by air cooling is cooled to reel temperature.
  • the presence of Ti and / or Nb is of importance, since these elements remain in solution until the start of hot rolling and improve their subsequent separation, inter alia, the grain fineness of the hot strip, an increase in retained austenite content and its stability.
  • the rolling strategy according to the invention is used to set a very fine Austenitkorns (d ⁇ 8 microns) in the last transformation, which acts accelerating in the following cooling section on the ferrite conversion.
  • the finish rolling of the strip therefore takes place at temperatures between 770 and 830 ° C. just above Ar 3 in the area of the metastable austenite.
  • the successful implementation of the cooling strategy requires compliance with certain limits of chemical composition in order to achieve the desired degree of conversion within the available short total cooling time.
  • the chemical analysis proposed for the production of TRIP steels therefore moves within the limits: 0.12 - 0.25% C, 0.05 - 1, 8% Si, 1, 0 - 2.0% Mn, balance Fe and usual accompanying elements.
  • the cooling strategy provides for two-stage cooling with either different cooling rates.
  • the start of the hold time at temperatures of 650 - 730 0 C is determined by the entry of the cooling curve in the ferrite region. In the following short cooling break then the desired conversion of austenite is at least 40% ferrite.
  • the second cooling stage is followed immediately by a cooling of the hot strip to a temperature between 320 to this hold time - 480 0 C. At this temperature, the conversion is made from austenite to at least 15% bainite.
  • the cooling strategy is determined by a well-defined predetermined cooling rate for both cooling stages.
  • a cooling rate of less than 30 K / s is not possible in the conventional cooling section of a cast roll mill because cooling time is greater than 150 K / s in such cooling sections of spaced-apart water cooling zones also can not be reached.
  • the hot strips of TRIP steel properties produced by the method of the invention for different strength levels with a yield ratio R p o, 2 / Rm in the range of 0.45 to 0.75 have the following property combinations of tensile strength R m and elongation at break A :
  • FIG. 2 shows a modified cooling section of the CSP system
  • FIG. 3 shows cooling curves for a dual-phase steel and a TRIP steel in a ZTU diagram.
  • the layout of a conventional CSP system 1 is shown schematically. It consists in the example shown in the conveying direction (in the drawing from left to right) from the main components, namely the casting machine with two strands 2, the strand guides 3, the equalizing ovens 4 with. a kiln ferry, a multi-stand rolling mill 6, the cooling section 10 and reels. 8
  • modified cooling section 10 of a CSP system 1 which is required for carrying out the cooling according to the invention and is already known for the production of dual-phase steel from EP 1 108 072 B1.
  • This behind the last finishing stand 6 'arranged modified cooling section 10 of the CSP system 1 has a plurality of spaced successively controllable water cooling zones 11 1 - 7 , 12 with Wassersprühköpfen 13 through which the upper band and the lower side of the strip hot strip 7 evenly with a certain amount of water is sprayed.
  • the positioning of the water cooling stages 11 1 - 7 , 12 within the cooling section 10, their number and their distance from each other and the number of Wassersprühköpfe 13 per water cooling stage 11 1 - 7 , 12 are chosen so that the desired cooling rate of the two cooling stages in advance variable can be adjusted to the water cooling 11 1 . 7 , 12 optimally adapted to the cooling conditions to be set. By controlling the sprayed amount of water can thus also during cooling, a necessary change in the cooling rate be made.
  • a further water cooling stage 12 is arranged, by means of which the second cooling stage is performed.
  • this water cooling stage 12 in contrast to the water cooling zones 111 -7 of the first cooling stage, there are a significantly larger number of water spray heads 13 in order to carry out forced intensive cooling in a shorter way.
  • the spatial distance between the last water cooling stage 11 7 of the first cooling stage and the water cooling stage 12 of the second cooling stage is chosen so large that sets the required hold time for the conversion of austenite according to the invention to at least 40% ferrite at the predetermined belt speed.
  • FIG. 3 is a ZTU diagram with the conversion lines for ferrite, perlite and bainite and with the temperature lines (20, 21, 22, 24) for AC 3 , Aci and M 8 .
  • horizontal displacement arrows 27 for the transformation lines and vertical displacement arrows 28 for the temperature lines it is indicated which influence existing or added alloying elements exert on the position of these transformation or temperature lines in the ZTU diagram.
  • the cooling curve 25 for the production of a dual-phase steel and the cooling curve 26 for the production according to the invention of a TRIP steel are shown by way of example in this ZTU diagram.
  • Cooling curve for a dual-phase steel 26 Cooling curve for a TRIP steel

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)
EP06806132A 2005-10-25 2006-10-10 Verfahren zur herstellung von warmband mit mehrphasengefüge Withdrawn EP1954842A1 (de)

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 (de) 2005-10-25 2006-10-10 Verfahren zur herstellung von warmband mit mehrphasengefüge

Publications (1)

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

Family

ID=37459318

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06806132A Withdrawn EP1954842A1 (de) 2005-10-25 2006-10-10 Verfahren zur herstellung von warmband mit mehrphasengefüge

Country Status (14)

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

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2180075B1 (en) * 2007-08-01 2017-05-03 Kabushiki Kaisha Kobe Seiko Sho High-strength steel sheet excellent in bendability and fatigue strength
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
BR112013009515B1 (pt) * 2010-10-22 2018-08-07 Nippon Steel & Sumitomo Metal Corporation Método de fabricação de corpo estampado a quente que tem uma parede vertical e corpo estampado a quente que tem uma parede vertical
WO2012053636A1 (ja) 2010-10-22 2012-04-26 新日本製鐵株式会社 ホットスタンプ成形体の製造方法及びホットスタンプ成形体
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
BR112013011409A2 (pt) * 2010-11-10 2016-08-02 Posco processo para fabricar aço trip de alta resistência laminado a frio/laminado a quente tendo uma resistência à tração de grau 590 mpa, funcionalidade superior e baixo desvio de propriedade mecânica
US10174392B2 (en) * 2011-07-06 2019-01-08 Nippon Steel & Sumitomo Metal Corporation Method for producing cold-rolled steel sheet
US20140205858A1 (en) * 2011-09-13 2014-07-24 Tata Steel Ijmuiden B.V. High strength hot dip galvanised steel strip
CZ303949B6 (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
US10227683B2 (en) * 2012-03-30 2019-03-12 Voestalpine Stahl Gmbh High strength cold rolled steel sheet
CZ2013282A3 (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
EP3260565B1 (en) * 2015-02-20 2019-07-31 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 (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
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
WO2018026014A1 (ja) 2016-08-05 2018-02-08 新日鐵住金株式会社 鋼板及びめっき鋼板
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
CN114645187A (zh) * 2022-01-29 2022-06-21 安阳钢铁股份有限公司 一种非调质950MPa级高强捆带钢及其生产方法
CN115976396B (zh) * 2022-12-30 2024-04-30 包头钢铁（集团）有限责任公司 一种高强度耐腐蚀集装箱用热轧钢带q550nqr1及其生产方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0295500B2 (en) * 1987-06-03 2003-09-10 Nippon Steel Corporation Hot rolled steel sheet with a high strength and a distinguished formability
US6190469B1 (en) * 1996-11-05 2001-02-20 Pohang Iron & Steel Co., Ltd. Method for manufacturing high strength and high formability hot-rolled transformation induced plasticity steel containing copper
BE1011149A3 (fr) * 1997-05-12 1999-05-04 Cockerill Rech & Dev Acier ductile a haute limite elastique et procede de fabrication de cet acier.
JP2000087141A (ja) * 1998-09-10 2000-03-28 Nkk Corp 残留オーステナイトを含有する薄物高張力熱延鋼帯の製造方法
JP3081197B1 (ja) * 1999-02-17 2000-08-28 株式会社神戸製鋼所 加工性と疲労特性に優れた高強度鋼板
DE19911287C1 (de) * 1999-03-13 2000-08-31 Thyssenkrupp Stahl Ag Verfahren zum Erzeugen eines Warmbandes
FR2796966B1 (fr) * 1999-07-30 2001-09-21 Ugine Sa Procede de fabrication de bandes minces en acier de type "trip" et bandes minces ainsi obtenues
FR2801061B1 (fr) * 1999-11-12 2001-12-14 Lorraine Laminage Procede de realisation d'une bande de tole laminere a chaud a tres haute resistance, utilisable pour la mise en forme et notamment pour l'emboutissage
CA2387322C (en) * 2001-06-06 2008-09-30 Kawasaki Steel Corporation High-ductility steel sheet excellent in press formability and strain age hardenability, and method for manufacturing the same
JP3764411B2 (ja) * 2002-08-20 2006-04-05 株式会社神戸製鋼所 焼付硬化性に優れた複合組織鋼板

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007048497A1 *

Also Published As

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

Similar Documents

Publication Publication Date Title
EP1954842A1 (de) Verfahren zur herstellung von warmband mit mehrphasengefüge
DE19911287C1 (de) Verfahren zum Erzeugen eines Warmbandes
EP0885974B1 (de) Verfahren zum Walzen von Warmband in einer CSP-Anlage
EP2690183B1 (de) Warmgewalztes Stahlflachprodukt und Verfahren zu seiner Herstellung
EP1918406B1 (de) Verfahren zum Herstellen von Stahl-Flachprodukten aus einem mit Bor mikrolegierten Mehrphasenstahl
EP1918402B1 (de) Verfahren zum Herstellen von Stahl-Flachprodukten aus einem ein Komplexphasen-Gefüge bildenden Stahl
WO2007014867A1 (de) Verfahren zur herstellung von kornorientiertem elektroband
EP1918403B1 (de) Verfahren zum Herstellen von Stahl-Flachprodukten aus einem ein martensitisches Gefüge bildenden Stahl
WO2007014868A1 (de) Verfahren zur herstellung von kornorientiertem elektroband
EP1305122A1 (de) Produktionsverfahren und -anlage zur erzeugung von dünnen flachprodukten
EP1319725B1 (de) Verfahren zum Herstellen von Warmband
WO2008052921A1 (de) Verfahren zum herstellen von stahl-flachprodukten aus einem mit silizium legierten mehrphasenstahl
DE102014005662A1 (de) Werkstoffkonzept für einen umformbaren Leichtbaustahl
EP1633894B1 (de) Verfahren und anlage zur herstellung von warmband mit dualphasengefüge
EP1396549B1 (de) Verfahren zum Herstellen eines perlitfreien warmgewalzten Stahlbands und nach diesem Verfahren hergestelltes Warmband
EP1974064A1 (de) Verfahren und vorrichtung zur einstellung gezielter eigenschaftskombinationen bei mehrphasenstählen
WO2008052920A1 (de) Verfahren zum herstellen von stahl-flachprodukten aus einem mit aluminium legierten mehrphasenstahl
EP1038978B1 (de) Verfahren zum Herstellen eines Warmbandes
DE102020214427A1 (de) Verfahren zum Herstellen eines Warmbandes mittels einer Gießwalzanlage
WO2001029273A1 (de) Verfahren zum herstellen eines warmbandes
EP0970256B1 (de) Warmwalzen von stahlband
EP2460596A1 (de) Verfahren zur Herstellung von hochfestem, niedrig legiertem Stahl mit Kupfer
WO2023016965A1 (de) Verfahren und vorrichtung zur herstellung eines hoch- und höchstfesten mehrphasenstahls
EP0185341B2 (de) Verfahren zur Erhöhung der Festigkeit von Bewehrungsstählen
DD289292A5 (de) Verfahren zur herstellung kaltverformter bewehrungsstaehle hoher festigkeit und verbesserter plastischer eigenschaften

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

17P Request for examination filed

Effective date: 20080222

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

RIN1 Information on inventor provided before grant (corrected)

Inventor name: OHLERT, JOACHIM

Inventor name: SPROCK, AUGUST

Inventor name: HENNIG, WOLFGANG

Inventor name: BILGEN, CHRISTIAN

17Q First examination report despatched

Effective date: 20080930

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SMS SIEMAG AG

DAX Request for extension of the european patent (deleted)
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

Effective date: 20131029

RIN1 Information on inventor provided before grant (corrected)

Inventor name: OHLERT, JOACHIM

Inventor name: HENNIG, WOLFGANG

Inventor name: BILGEN, CHRISTIAN

Inventor name: DIE ANDERE ERFINDER HABEN AUF IHRE NENNUNG VERZICH