BRPI0407236A - Process for manufacturing a cold rolled ferrite-martensitically biphasic steel strip and strip obtained - Google Patents

Process for manufacturing a cold rolled ferrite-martensitically biphasic steel strip and strip obtained

Info

Publication number
BRPI0407236A
BRPI0407236A BR0407236-7A BRPI0407236A BRPI0407236A BR PI0407236 A BRPI0407236 A BR PI0407236A BR PI0407236 A BRPI0407236 A BR PI0407236A BR PI0407236 A BRPI0407236 A BR PI0407236A
Authority
BR
Brazil
Prior art keywords
strip
cold rolled
steel strip
martensitically
manufacturing
Prior art date
Application number
BR0407236-7A
Other languages
Portuguese (pt)
Inventor
Antoine Moulin
Original Assignee
Usinor
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 Usinor filed Critical Usinor
Publication of BRPI0407236A publication Critical patent/BRPI0407236A/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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236—Cold 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys 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
    • 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
    • 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0273—Final recrystallisation annealing
    • 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
    • C21D1/185—Hardening; Quenching with or without subsequent tempering from an intercritical temperature
    • 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

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)

Abstract

"PROCESSO DE FABRICAçãO DE UMA TIRA DE AçO BIFáSICO DE ESTRUTURA FERRITO-MARTENSìTICA, LAMINADA A FRIO E TIRA OBTIDA". A presente invenção refere-se a um processo de fabricação de uma tira de aço bifásico de estrutura ferrito-martensítica, laminada a frio no qual lamina-se a quente uma placa cuja composição química compreende, em peso 0,010 % <243> C <243> 0,100% 0,050 % <243> Mn <243> 1,0% 0,010 % <243> Cr <243> 1,0% 0,010 % <243> Si <243> 0,50% 0,001 % <243> P <243> 0,20% 0,010 % <243> AI <243> 0,10% N <243> 0,010% o resto sendo ferro e impurezas que resultam da elaboração, o dito processo compreendendo em seguida as etapas que consistem em: - bobinar a tira a quente obtida a uma temperatura compreendida entre 550 e 850<198>C, e depois - em laminar a frio a tira com uma taxa de redução compreendida entre 60 e 90 %, e depois - em recozer a tira de modo contínuo no domínio intercrítico, e - em resfriar a mesma até a temperatura ambiente, em uma ou várias etapas, a velocidade de resfriamento entre 600<198>C e a temperatura ambiente estando compreendida entre 100<198>C/s e 1500<198>C/s, - e eventualmente fazer a mesma ser submetida a um revenido a uma temperatura inferior a 300<198>C, as operações de recozimento e de resfriamento sendo conduzidas de tal modo para que a tira compreenda finalmente 1 a 15 % de martensita, e à tira de aço assim formada."MANUFACTURING PROCESS OF A BPHASIC STEEL STRUCTURE OF FERRITO-MARTENSTICAL, COLD LAMINATED STRUCTURE AND OBTAINED STRUCTURE". The present invention relates to a process for the manufacture of a cold rolled ferrite martensitic biphasic steel strip in which a hot plate is formed, the chemical composition of which comprises by weight 0.010% <243> C <243 > 0.100% 0.050% <243> Mn <243> 1.0% 0.010% <243> Cr <243> 1.0% 0.010% <243> Si <243> 0.50% 0.001% <243> P <243 > 0.20% 0.010% <243> AI <243> 0.10% N <243> 0.010% the rest being iron and impurities resulting from the elaboration, said process further comprising the steps consisting of: hot strip obtained at a temperature of between 550 and 850 ° C, and then - by cold rolling the strip with a reduction rate of between 60 and 90%, and then - annealing the strip continuously in the domain. and - cooling it to room temperature in one or several steps, the cooling rate between 600 <198> C and room temperature being between 100 <198> C / s and 1500 <198> C / s and - possibly causing it to temper at a temperature below 300 ° C, annealing and cooling operations being conducted such that the strip finally comprises 1 to 15% martensite, and steel strip thus formed.

BR0407236-7A 2003-02-05 2004-01-30 Process for manufacturing a cold rolled ferrite-martensitically biphasic steel strip and strip obtained BRPI0407236A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0301358A FR2850671B1 (en) 2003-02-05 2003-02-05 PROCESS FOR MANUFACTURING A DUAL-PHASE STEEL BAND HAVING A COLD-ROLLED FERRITO-MARTENSITIC STRUCTURE AND A BAND OBTAINED THEREFROM
PCT/FR2004/000209 WO2004079022A1 (en) 2003-02-05 2004-01-30 Method of producing a cold-rolled band of dual-phase steel with a ferritic/martensitic structure and band thus obtained

Publications (1)

Publication Number Publication Date
BRPI0407236A true BRPI0407236A (en) 2006-01-31

Family

ID=32696392

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0407236-7A BRPI0407236A (en) 2003-02-05 2004-01-30 Process for manufacturing a cold rolled ferrite-martensitically biphasic steel strip and strip obtained

Country Status (16)

Country Link
US (1) US20060144482A1 (en)
EP (1) EP1592816B1 (en)
JP (1) JP4528769B2 (en)
KR (1) KR101091021B1 (en)
CN (1) CN100465299C (en)
BR (1) BRPI0407236A (en)
CA (1) CA2514736C (en)
ES (1) ES2831249T3 (en)
FR (1) FR2850671B1 (en)
HU (1) HUE052206T2 (en)
MX (1) MXPA05008189A (en)
PL (1) PL206109B1 (en)
RU (1) RU2341566C2 (en)
UA (1) UA87454C2 (en)
WO (1) WO2004079022A1 (en)
ZA (1) ZA200505968B (en)

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US7442268B2 (en) * 2004-11-24 2008-10-28 Nucor Corporation Method of manufacturing cold rolled dual-phase steel sheet
US7959747B2 (en) * 2004-11-24 2011-06-14 Nucor Corporation Method of making cold rolled dual phase steel sheet
US7608155B2 (en) * 2006-09-27 2009-10-27 Nucor Corporation High strength, hot dip coated, dual phase, steel sheet and method of manufacturing same
US11155902B2 (en) 2006-09-27 2021-10-26 Nucor Corporation High strength, hot dip coated, dual phase, steel sheet and method of manufacturing same
MX2010003835A (en) * 2007-10-10 2010-05-13 Nucor Corp Complex metallographic structured steel and method of manufacturing same.
CN101768697B (en) * 2008-12-31 2012-09-19 宝山钢铁股份有限公司 Method for manufacturing oriented silicon steel with one-step cold rolling method
CN101781739A (en) * 2010-03-18 2010-07-21 武汉钢铁(集团)公司 Automobile cold-rolled dual-phase steel with tensile strength of 500 MPa
CN102115808B (en) * 2010-11-17 2013-04-24 山东钢铁股份有限公司 Ferrite region rolling temperature control system
CN103459619B (en) * 2011-03-22 2015-06-10 日立金属株式会社 Method for winding hot-rolled maraging steel strip
PL2730666T3 (en) * 2011-07-06 2018-11-30 Nippon Steel & Sumitomo Metal Corporation Method for producing a cold-rolled steel sheet
KR20200106559A (en) 2011-11-28 2020-09-14 아르셀러미탈 인베스티가시온 와이 데살롤로 에스엘 High silicon bearing dual phase steels with improved ductility
JP2013181183A (en) * 2012-02-29 2013-09-12 Jfe Steel Corp High strength cold rolled steel sheet having low in-plane anisotropy of yield strength, and method of producing the same
WO2013160928A1 (en) * 2012-04-23 2013-10-31 Ｊｆｅスチール株式会社 High-strength steel sheet and method for manufacturing same
RU2491357C1 (en) * 2012-05-10 2013-08-27 Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Национальный исследовательский технологический университет "МИСиС" Method to produce sheet steel
CN102703815A (en) * 2012-06-19 2012-10-03 东北大学 A kind of 600MPa grade hot-rolled dual-phase steel and its preparation method
WO2014081779A1 (en) * 2012-11-20 2014-05-30 Thyssenkrupp Steel Usa, Llc Process for manufacturing ferritic hot rolled steel strip
US9790567B2 (en) 2012-11-20 2017-10-17 Thyssenkrupp Steel Usa, Llc Process for making coated cold-rolled dual phase steel sheet
WO2014081776A1 (en) * 2012-11-20 2014-05-30 Thyssenkrupp Steel Usa, Llc Process for making cold-rolled dual phase steel sheet
WO2014145536A1 (en) * 2013-03-15 2014-09-18 Am/Ns Calvert Llc New high strength bake hardenable low alloy steel and process for manufacture thereof
RU2529323C1 (en) * 2013-06-27 2014-09-27 Открытое акционерное общество "Северсталь" (ОАО "Северсталь") Manufacturing method of zinc-plated strip for following application of polymer coating
DE102013013067A1 (en) * 2013-07-30 2015-02-05 Salzgitter Flachstahl Gmbh Silicon-containing microalloyed high-strength multiphase steel having a minimum tensile strength of 750 MPa and improved properties and processes for producing a strip of this steel
DE102013224851A1 (en) * 2013-12-04 2015-06-11 Schaeffler Technologies AG & Co. KG chain element
CN103952523B (en) * 2014-04-15 2016-01-20 东北大学 A kind of continuous annealing method of martensite ferrite dual phase steel cold rolled sheet
EP3164516B1 (en) 2014-07-03 2019-04-24 ArcelorMittal Method for producing an ultra high strength coated or not coated steel sheet and obtained sheet
WO2016118945A1 (en) * 2015-01-23 2016-07-28 Alcoa Inc. Aluminum alloy products
AU2016293582A1 (en) 2015-07-15 2018-02-01 Ak Steel Properties, Inc. High formability dual phase steel
WO2017109542A1 (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
WO2017109538A1 (en) * 2015-12-21 2017-06-29 Arcelormittal Method for producing a steel sheet having improved strength, ductility and formability
WO2017109541A1 (en) * 2015-12-21 2017-06-29 Arcelormittal Method for producing a high strength coated steel sheet having improved ductility and formability, and obtained coated steel sheet
CN105401071B (en) * 2015-12-22 2017-12-29 武汉钢铁有限公司 A kind of 500MPa levels car Galvanized Dual Phase Steel and production method
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Also Published As

Publication number Publication date
UA87454C2 (en) 2009-07-27
JP4528769B2 (en) 2010-08-18
EP1592816A1 (en) 2005-11-09
ZA200505968B (en) 2006-06-28
EP1592816B1 (en) 2020-10-14
CN100465299C (en) 2009-03-04
RU2005127577A (en) 2006-02-10
CA2514736C (en) 2012-12-04
PL377834A1 (en) 2006-02-20
KR101091021B1 (en) 2011-12-09
CN1748039A (en) 2006-03-15
FR2850671A1 (en) 2004-08-06
HUE052206T2 (en) 2021-04-28
MXPA05008189A (en) 2005-10-05
ES2831249T3 (en) 2021-06-08
FR2850671B1 (en) 2006-05-19
CA2514736A1 (en) 2004-09-16
RU2341566C2 (en) 2008-12-20
KR20050095782A (en) 2005-09-30
US20060144482A1 (en) 2006-07-06
WO2004079022A1 (en) 2004-09-16
JP2006520431A (en) 2006-09-07
PL206109B1 (en) 2010-07-30

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B25G Requested change of headquarter approved

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Owner name: USINOR (FR)

B25D Requested change of name of applicant approved

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B25D Requested change of name of applicant approved

Owner name: ARCELORMITTAL FRANCE (FR)

B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: INDEFIRO O PEDIDO DE ACORDO COM O(S) ARTIGO(S) 8O E 13 DA LPI

B12B Appeal against refusal [chapter 12.2 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]
B16C Correction of notification of the grant [chapter 16.3 patent gazette]