EP1918405B1 - Procédé pour la fabrication de produits plats à partir d'un acier à plusieurs phases allié en silice - Google Patents

Procédé pour la fabrication de produits plats à partir d'un acier à plusieurs phases allié en silice Download PDF

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Publication number
EP1918405B1
EP1918405B1 EP06123141A EP06123141A EP1918405B1 EP 1918405 B1 EP1918405 B1 EP 1918405B1 EP 06123141 A EP06123141 A EP 06123141A EP 06123141 A EP06123141 A EP 06123141A EP 1918405 B1 EP1918405 B1 EP 1918405B1
Authority
EP
European Patent Office
Prior art keywords
hot
rolled strip
strip
cold
rolled
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.)
Not-in-force
Application number
EP06123141A
Other languages
German (de)
English (en)
Other versions
EP1918405A1 (fr
Inventor
Brigitte Dr.-Ing. Hammer
Thomas Dr.-Ing. Heller
Johann Wilhelm Dr. Schmitz
Jochen Dr. Wans
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.)
ThyssenKrupp Steel Europe AG
Original Assignee
ThyssenKrupp Steel 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
Priority to ES06123141T priority Critical patent/ES2325964T3/es
Application filed by ThyssenKrupp Steel AG filed Critical ThyssenKrupp Steel AG
Priority to AT06123141T priority patent/ATE432375T1/de
Priority to DE502006003833T priority patent/DE502006003833D1/de
Priority to PL06123141T priority patent/PL1918405T3/pl
Priority to EP06123141A priority patent/EP1918405B1/fr
Priority to PCT/EP2007/061392 priority patent/WO2008052921A1/fr
Priority to US12/447,625 priority patent/US20100065161A1/en
Priority to CN2007800400604A priority patent/CN101528968B/zh
Priority to JP2009533824A priority patent/JP5350255B2/ja
Priority to KR1020097007487A priority patent/KR101461585B1/ko
Publication of EP1918405A1 publication Critical patent/EP1918405A1/fr
Application granted granted Critical
Publication of EP1918405B1 publication Critical patent/EP1918405B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • 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
    • C21D8/0421—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
    • C21D8/0436—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 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
    • C21D8/0473—Final recrystallisation annealing
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
    • 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

Claims (14)

  1. Procédé pour la fabrication de produits laminés plats en acier,
    - dans lequel un acier, qui forme une structure à plusieurs phases et présente la composition suivante (en % de poids) : C : 0,10 - 0,15 % Min : 0,80 - 1,20 % P : ≤ 0,030 % S : ≤ 0,004 % Si : 1,10 - 1,30 % Al : 0,0 - 0,05 % N : ≤ 0,0060 % Cr : 0, 30 - 0,60 % Ti : 0,080 - 0,120 % Nb : 0,040 - 0,060 % Mo : 0,150 - 0,250 %
    le complément étant du fer et des impuretés inévitables,
    est coulé en un feuillard coulé présentant une épaisseur de 1 à 4 mm,
    - dans lequel, le feuillard coulé est laminé à chaud, au cours d'une opération continue, avec un taux de déformation de plus de 20 % en ligne, à une température finale de laminage à chaud située dans une plage de 850 à 1000 °C, en un feuillard laminé à chaud d'une épaisseur de 0,5 à 3,2 mm, puis refroidi en une étape, et
    - dans lequel le feuillard laminé à chaud est bobiné à une température de bobinage de 450 à 700 °C,
    - de sorte que l'on obtienne un feuillard laminé à chaud, dont la résistance à la traction Rm est de 880 MPa au minimum, pour un allongement à la rupture A80 de 5 % au minimum.
  2. Procédé selon la revendication 1, caractérisé en ce que la largeur du feuillard laminé à chaud est supérieure à 1.200 mm, en particulier supérieure à 1.600 mm.
  3. Procédé selon l'une des revendications précédentes, caractérisé en ce que l'épaisseur du feuillard laminé à chaud est de 1,5 mm au maximum.
  4. Procédé selon l'une des revendications précédentes, caractérisé en ce que le feuillard laminé à chaud est laminé à froid en un feuillard laminé à froid d'une épaisseur de 0,5 à 1,4 mm.
  5. Procédé selon la revendication 4, caractérisé en ce que le feuillard laminé à froid est recuit à une température rouge de 750 à 805 °C.
  6. Procédé selon revendication 4 ou 5, caractérisé en ce que la résistance à la traction du feuillard laminé à froid est de 1000 MPa au minimum.
  7. Procédé selon l'une des revendications 4 à 6, caractérisé en ce que le feuillard laminé à froid présente un allongement à la rupture A50 de 5 % au minimum.
  8. Procédé selon la revendication 4, caractérisé en ce que le feuillard laminé à froid est recuit à une température rouge de 810 à 850 °C.
  9. Procédé selon revendication 4 ou 8, caractérisé en ce que la résistance à la traction du feuillard laminé à froid est supérieure à 800 MPa.
  10. Procédé selon l'une des revendications 4, 8 ou 9, caractérisé en ce que le feuillard laminé à froid présente un allongement à la rupture A50 de 5 % au minimum.
  11. Procédé selon l'une des revendications précédentes, caractérisé en ce que l'on pourvoit le feuillard laminé à chaud ou le feuillard laminé à froid d'un revêtement métallique.
  12. Procédé selon la revendication 11, caractérisé en ce que le revêtement métallique est un zingage.
  13. Procédé selon l'une des revendications précédentes, caractérisé en ce que, quand l'allongement à la rupture A80 du feuillard laminé à chaud obtenu est de 10 % au minimum, la température de bobinage est de 550 à 700 °C.
  14. Procédé selon l'une des revendications 1 à 12, caractérisé en ce que, quand la résistance à la traction Rm du feuillard laminé à chaud obtenu est de 1000 MPa au minimum, la température de laminage à chaud est de 900 à 1000 °C et la température de bobinage est de 450 à 550 °C.
EP06123141A 2006-10-30 2006-10-30 Procédé pour la fabrication de produits plats à partir d'un acier à plusieurs phases allié en silice Not-in-force EP1918405B1 (fr)

Priority Applications (10)

Application Number Priority Date Filing Date Title
AT06123141T ATE432375T1 (de) 2006-10-30 2006-10-30 Verfahren zum herstellen von stahl-flachprodukten aus einem mit silizium legierten mehrphasenstahl
DE502006003833T DE502006003833D1 (de) 2006-10-30 2006-10-30 Verfahren zum Herstellen von Stahl-Flachprodukten aus einem mit Silizium legierten Mehrphasenstahl
PL06123141T PL1918405T3 (pl) 2006-10-30 2006-10-30 Sposób wytwarzania płaskich produktów stalowych z wielofazowej stali stopowej z krzemem
EP06123141A EP1918405B1 (fr) 2006-10-30 2006-10-30 Procédé pour la fabrication de produits plats à partir d'un acier à plusieurs phases allié en silice
ES06123141T ES2325964T3 (es) 2006-10-30 2006-10-30 Procedimiento para fabricar productos planos de acero a partir de un acero multifasico aleado con silicio.
US12/447,625 US20100065161A1 (en) 2006-10-30 2007-10-24 Method for manufacturing flat steel products from silicon alloyed multi-phase steel
PCT/EP2007/061392 WO2008052921A1 (fr) 2006-10-30 2007-10-24 Procédé de fabrication de produits plats en acier à partir d'un acier multiphase allié à du silicium
CN2007800400604A CN101528968B (zh) 2006-10-30 2007-10-24 由硅合金化多相钢制造扁钢产品的方法
JP2009533824A JP5350255B2 (ja) 2006-10-30 2007-10-24 ケイ素合金化多相鋼からフラット鋼生成物を製造する方法
KR1020097007487A KR101461585B1 (ko) 2006-10-30 2007-10-24 실리콘으로 합금화된 다상 강으로부터 평판형 강 제품을 제조하는 방법

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06123141A EP1918405B1 (fr) 2006-10-30 2006-10-30 Procédé pour la fabrication de produits plats à partir d'un acier à plusieurs phases allié en silice

Publications (2)

Publication Number Publication Date
EP1918405A1 EP1918405A1 (fr) 2008-05-07
EP1918405B1 true EP1918405B1 (fr) 2009-05-27

Family

ID=37781961

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06123141A Not-in-force EP1918405B1 (fr) 2006-10-30 2006-10-30 Procédé pour la fabrication de produits plats à partir d'un acier à plusieurs phases allié en silice

Country Status (10)

Country Link
US (1) US20100065161A1 (fr)
EP (1) EP1918405B1 (fr)
JP (1) JP5350255B2 (fr)
KR (1) KR101461585B1 (fr)
CN (1) CN101528968B (fr)
AT (1) ATE432375T1 (fr)
DE (1) DE502006003833D1 (fr)
ES (1) ES2325964T3 (fr)
PL (1) PL1918405T3 (fr)
WO (1) WO2008052921A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10071416B2 (en) * 2005-10-20 2018-09-11 Nucor Corporation High strength thin cast strip product and method for making the same
EP2209926B1 (fr) * 2007-10-10 2019-08-07 Nucor Corporation Acier à structure métallographique complexe et son procédé de fabrication
WO2011100798A1 (fr) 2010-02-20 2011-08-25 Bluescope Steel Limited Nitratation d'acier au niobium et produit fabriqué par ce moyen
EP2439290B1 (fr) 2010-10-05 2013-11-27 ThyssenKrupp Steel Europe AG Acier à plusieurs phases, produit plat laminé à froid fabriqué à partir d'un tel acier à plusieurs phases et son procédé de fabrication
AT512399B1 (de) * 2012-09-10 2013-08-15 Siemens Vai Metals Tech Gmbh Verfahren zum Herstellen eines mikrolegierten Röhrenstahls in einer Gieß-Walz-Verbundanlage und mikrolegierter Röhrenstahl
KR102596515B1 (ko) 2014-12-19 2023-11-01 누코 코포레이션 열연 경량 마르텐사이트계 강판 및 이의 제조방법
IT201700010994A1 (it) * 2017-02-01 2018-08-01 Nova Ferr S R L Lama di taglio per un tagliaerba.

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Also Published As

Publication number Publication date
DE502006003833D1 (de) 2009-07-09
EP1918405A1 (fr) 2008-05-07
CN101528968A (zh) 2009-09-09
CN101528968B (zh) 2013-03-06
ES2325964T3 (es) 2009-09-25
JP2010508437A (ja) 2010-03-18
JP5350255B2 (ja) 2013-11-27
WO2008052921A1 (fr) 2008-05-08
PL1918405T3 (pl) 2009-10-30
US20100065161A1 (en) 2010-03-18
ATE432375T1 (de) 2009-06-15
KR20090090303A (ko) 2009-08-25
KR101461585B1 (ko) 2015-02-23

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