CA2314830A1 - Procede de fabrication de bandes minces en acier de type "trip", et bandes minces ainsi obtenues - Google Patents

Procede de fabrication de bandes minces en acier de type "trip", et bandes minces ainsi obtenues Download PDF

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Publication number
CA2314830A1
CA2314830A1 CA002314830A CA2314830A CA2314830A1 CA 2314830 A1 CA2314830 A1 CA 2314830A1 CA 002314830 A CA002314830 A CA 002314830A CA 2314830 A CA2314830 A CA 2314830A CA 2314830 A1 CA2314830 A1 CA 2314830A1
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CA
Canada
Prior art keywords
band
thin
degrees
steel
trip
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.)
Granted
Application number
CA002314830A
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English (en)
Other versions
CA2314830C (fr
Inventor
Thierry Iung
Odile Faral
Michel Faral
Michel Babbit
Christophe Issartel
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USINOR SA
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USINOR SA
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Publication date
Application filed by USINOR SA filed Critical USINOR SA
Publication of CA2314830A1 publication Critical patent/CA2314830A1/fr
Application granted granted Critical
Publication of CA2314830C publication Critical patent/CA2314830C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • 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
    • 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
    • C21D8/021—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 involving particular fabrication steps or treatments of ingots or slabs
    • 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 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
    • C21D8/0226—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
    • 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
    • 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

Landscapes

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

Abstract

L'invention a pour objet un procédé de fabrication de bandes minces en acier de type « TRIP », selon lequel: - on coule directement à partir d'acier liquide une bande d'épaisseur compri se entre 1,5 et 10 mm, préférentiellement 1 à 5 mm, ledit acier ayant la composition (en pourcentages pondéraux) C% compris entre 0,05 et 0,25, (Mn + Cu + Ni)% compr is entre 0,5 et 3, (Si + Al)% compris entre 0,1 et 4, (P + Sn + As + Sb)% inférieur o u égal à 0,1, (Ti + Nb + V + Zr + terres rares)% inférieur à 0,3, Cr% inférieur à 1, Mo% inférieur à 1, V% inférieur à 1, le reste étant du fer et des impuretés résultant de l'élaboration ; - on effectue un laminage à chaud en ligne de ladite bande à une température supérieure à la température Ar3 dudit acier avec un taux de réduction compri s entre 25 et 70%, en une ou plusieurs passes ; - on effectue un premier refroidissement forcé de ladite bande à une vitesse comprise entre 5 et 100.degree.C/s ; - on laisse séjourner la bande à des températures comprises entre 550 et 400.degree.C pendant le temps nécessaire pour que s'y produise une transformation bainitique avec une proportion d'austénite résiduelle supérieure à 5%, tout en évitant la formation de perlite, puis on interrompt cette transformation par un second refroidissement forcé de ladite bande qui l'amène à unetempérature inférieure à 400.degree.C ; - on effectue un bobinage de ladite bande à une température inférieure à 350.degree.C. L'invention a également pour objet une bande mince en acier de type « TRIP » susceptible d'être obtenue par le procédé précédent.
CA002314830A 1999-07-30 2000-07-17 Procede de fabrication de bandes minces en acier de type "trip", et bandes minces ainsi obtenues Expired - Fee Related CA2314830C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9910060A FR2796966B1 (fr) 1999-07-30 1999-07-30 Procede de fabrication de bandes minces en acier de type "trip" et bandes minces ainsi obtenues
FR9910060 1999-07-30

Publications (2)

Publication Number Publication Date
CA2314830A1 true CA2314830A1 (fr) 2001-01-30
CA2314830C CA2314830C (fr) 2009-03-17

Family

ID=9548832

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002314830A Expired - Fee Related CA2314830C (fr) 1999-07-30 2000-07-17 Procede de fabrication de bandes minces en acier de type "trip", et bandes minces ainsi obtenues

Country Status (9)

Country Link
US (1) US6328826B1 (fr)
EP (1) EP1072689B1 (fr)
JP (2) JP4684397B2 (fr)
KR (1) KR100656974B1 (fr)
AT (1) ATE263846T1 (fr)
BR (1) BR0003612A (fr)
CA (1) CA2314830C (fr)
DE (1) DE60009611T2 (fr)
FR (1) FR2796966B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118639118A (zh) * 2024-08-16 2024-09-13 鞍钢股份有限公司 高成形性485MPa级冷冲压汽车桥壳用钢及其生产方法

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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
US7117925B2 (en) * 2000-09-29 2006-10-10 Nucor Corporation Production of thin steel strip
DE60139491D1 (de) * 2000-09-29 2009-09-17 Nucor Corp Herstellung von dünnem stahlblech
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US7090731B2 (en) 2001-01-31 2006-08-15 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) High strength steel sheet having excellent formability and method for production thereof
WO2002061161A1 (fr) * 2001-01-31 2002-08-08 Kabushiki Kaisha Kobe Seiko Sho Feuillard en acier a haute resistance ayant une excellente formabilite, et son procede de production
KR100770950B1 (ko) * 2001-12-18 2007-10-26 주식회사 포스코 폭방향 잔류오스테나이트 안정화를 위한 권취 후 냉각방법
KR100782758B1 (ko) * 2001-12-24 2007-12-05 주식회사 포스코 폭방향 잔류오스테나이트 안정화를 위한 권취온도 설정 방법
FR2834722B1 (fr) * 2002-01-14 2004-12-24 Usinor Procede de fabrication d'un produit siderurgique en acier au carbone riche en cuivre, et produit siderurgique ainsi obtenu
FR2836930B1 (fr) * 2002-03-11 2005-02-25 Usinor Acier lamine a chaud a tres haute resistance et de faible densite
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FR2847270B1 (fr) * 2002-11-19 2004-12-24 Usinor Procede pour fabriquer une tole en acier resistant a l'abrasion et tole obtenue
FR2847271B1 (fr) 2002-11-19 2004-12-24 Usinor Procede pour fabriquer une tole en acier resistant a l'abrasion et tole obtenue
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PL1918406T3 (pl) * 2006-10-30 2009-10-30 Thyssenkrupp Steel Ag Sposób wytwarzania płaskich produktów stalowych z wielofazowej stali mikrostopowej z borem
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CN103302255B (zh) * 2012-03-14 2015-10-28 宝山钢铁股份有限公司 一种薄带连铸700MPa级高强耐大气腐蚀钢制造方法
CN103305770B (zh) * 2012-03-14 2015-12-09 宝山钢铁股份有限公司 一种薄带连铸550MPa级高强耐大气腐蚀钢带的制造方法
CN103305759B (zh) * 2012-03-14 2014-10-29 宝山钢铁股份有限公司 一种薄带连铸700MPa级高强耐候钢制造方法
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CN106521337B (zh) * 2016-11-17 2018-09-04 成都先进金属材料产业技术研究院有限公司 板坯流程生产相变诱导塑性钢的方法
CN106636931B (zh) * 2016-12-30 2018-05-18 北京科技大学 一种含δ-铁素体的TRIP钢的制备方法
CN106636925B (zh) * 2016-12-30 2018-05-18 北京科技大学 一种高强塑积冷轧trip钢及其制备方法
RU2679786C1 (ru) * 2017-11-13 2019-02-12 Сергей Александрович Ненашев СПОСОБ ТЕРМИЧЕСКОЙ ОБРАБОТКИ ХОЛОДНОКАТАНОЙ СТАЛЬНОЙ ЛЕНТЫ ТОЛЩИНОЙ 0,30-1,5 ММ ИЗ КОНСТРУКЦИОННОЙ СТАЛИ С ПРЕДЕЛОМ ПРОЧНОСТИ ПРИ РАСТЯЖЕНИИ 800 -1200МПа
RU2687620C2 (ru) * 2017-11-13 2019-05-15 Сергей Александрович Ненашев Способ обработки стальной упаковочной ленты
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Publication number Priority date Publication date Assignee Title
CN118639118A (zh) * 2024-08-16 2024-09-13 鞍钢股份有限公司 高成形性485MPa级冷冲压汽车桥壳用钢及其生产方法

Also Published As

Publication number Publication date
JP2011047054A (ja) 2011-03-10
KR100656974B1 (ko) 2006-12-15
JP4684397B2 (ja) 2011-05-18
CA2314830C (fr) 2009-03-17
DE60009611D1 (de) 2004-05-13
FR2796966A1 (fr) 2001-02-02
FR2796966B1 (fr) 2001-09-21
JP2001073040A (ja) 2001-03-21
US6328826B1 (en) 2001-12-11
ATE263846T1 (de) 2004-04-15
EP1072689B1 (fr) 2004-04-07
DE60009611T2 (de) 2005-03-31
EP1072689A1 (fr) 2001-01-31
KR20010021143A (ko) 2001-03-15
BR0003612A (pt) 2001-03-13

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