FR2428674A1 - Procede pour la production de tole d'acier laminee a froid a structure en phase double - Google Patents

Procede pour la production de tole d'acier laminee a froid a structure en phase double

Info

Publication number
FR2428674A1
FR2428674A1 FR7915424A FR7915424A FR2428674A1 FR 2428674 A1 FR2428674 A1 FR 2428674A1 FR 7915424 A FR7915424 A FR 7915424A FR 7915424 A FR7915424 A FR 7915424A FR 2428674 A1 FR2428674 A1 FR 2428674A1
Authority
FR
France
Prior art keywords
phase structure
double
rolled steel
cold
steel
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
FR7915424A
Other languages
English (en)
Other versions
FR2428674B1 (fr
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of FR2428674A1 publication Critical patent/FR2428674A1/fr
Application granted granted Critical
Publication of FR2428674B1 publication Critical patent/FR2428674B1/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C21D8/0273—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
    • 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
    • C21D2211/008—Martensite

Landscapes

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

Abstract

a. Le procédé de l'invention est destiné à produire des tôles d'acier laminés à froid à structure en phase double possédant un faible indice de flexion, un allongement important et une résistance à la traction de 35 à 50 kg/mm** 2. b. On lamine à chaud et à froid un acier contenant en particulier 0,01 à 0,05 % C, moins de 0,2 % Si, 1,7 à 2,5 % Mn, 0,01 à 0,10 % Al, maintient cet acier entre 730 et 850 degrés C pendant 20 secondes à 30 minutes, et le refroidit dans des conditions bien déterminées. c. On obtient par ce procédé une tôle d'acier à haute résistance générale et résistant bien aux chocs, facile à façonner, convenant bien pour les carrosseries de voitures automobiles.
FR7915424A 1978-06-16 1979-06-15 Procede pour la production de tole d'acier laminee a froid a structure en phase double Expired FR2428674B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53072802A JPS5836650B2 (ja) 1978-06-16 1978-06-16 引張強さ３５〜５０Ｋｇ／ｍｍ↑２、降伏比６０％未満で、高伸びを有する複合組織冷延鋼板の製造方法

Publications (2)

Publication Number Publication Date
FR2428674A1 true FR2428674A1 (fr) 1980-01-11
FR2428674B1 FR2428674B1 (fr) 1986-04-25

Family

ID=13499877

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7915424A Expired FR2428674B1 (fr) 1978-06-16 1979-06-15 Procede pour la production de tole d'acier laminee a froid a structure en phase double

Country Status (6)

Country Link
US (1) US4376661A (fr)
JP (1) JPS5836650B2 (fr)
BE (1) BE877004A (fr)
DE (1) DE2924167C2 (fr)
FR (1) FR2428674B1 (fr)
SE (1) SE446883B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2486101A1 (fr) * 1980-07-05 1982-01-08 Nippon Steel Corp Tole d'acier laminee a froid, de solidite elevee, formable par pressage de structure a deux phases et procede pour la production de cette tole

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5832218B2 (ja) * 1978-08-22 1983-07-12 川崎製鉄株式会社 プレス性とくに形状凍結性の優れた高張力鋼板の製造方法
JPS56108831A (en) * 1980-02-04 1981-08-28 Nisshin Steel Co Ltd Manufacture of low yield ratio, high tensile strength steel sheet plated with molten aluminum
US4770719A (en) * 1984-04-12 1988-09-13 Kawasaki Steel Corporation Method of manufacturing a low yield ratio high-strength steel sheet having good ductility and resistance to secondary cold-work embrittlement
US4619714A (en) * 1984-08-06 1986-10-28 The Regents Of The University Of California Controlled rolling process for dual phase steels and application to rod, wire, sheet and other shapes
DE3682128D1 (de) 1985-07-17 1991-11-28 Konishiroku Photo Ind Photographisches silberhalogenidmaterial.
JP3542946B2 (ja) * 2000-06-29 2004-07-14 新日本製鐵株式会社 加工性及びめっき密着性に優れた高強度鋼板及びその製造方法
WO2004027786A2 (fr) * 2002-09-20 2004-04-01 Enventure Global Technology Manchon protecteur conçu pour des tuyaux extensibles
US7959747B2 (en) * 2004-11-24 2011-06-14 Nucor Corporation Method of making cold rolled dual phase steel sheet
US7442268B2 (en) * 2004-11-24 2008-10-28 Nucor Corporation Method of manufacturing cold rolled dual-phase steel sheet
US8337643B2 (en) * 2004-11-24 2012-12-25 Nucor Corporation Hot rolled dual phase steel sheet
US11155902B2 (en) 2006-09-27 2021-10-26 Nucor Corporation High strength, hot dip coated, dual phase, steel sheet and method of manufacturing same
US7608155B2 (en) * 2006-09-27 2009-10-27 Nucor Corporation High strength, hot dip coated, dual phase, steel sheet and method of manufacturing same
US8435363B2 (en) 2007-10-10 2013-05-07 Nucor Corporation Complex metallographic structured high strength steel and manufacturing same
US20090236068A1 (en) * 2008-03-19 2009-09-24 Nucor Corporation Strip casting apparatus for rapid set and change of casting rolls
CN102015155B (zh) * 2008-03-19 2013-11-27 纽科尔公司 使用铸辊定位的带材铸造设备
US20090288798A1 (en) * 2008-05-23 2009-11-26 Nucor Corporation Method and apparatus for controlling temperature of thin cast strip
JP5092908B2 (ja) * 2008-06-02 2012-12-05 Ｊｆｅスチール株式会社 耐二次加工脆性に優れた高強度薄鋼板およびその製造方法
WO2023135550A1 (fr) 2022-01-13 2023-07-20 Tata Steel Limited Acier micro-allié à faible teneur en carbone laminé à froid et son procédé de fabrication

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2238767A1 (fr) * 1973-07-25 1975-02-21 Nippon Kokan Kk
FR2240294A1 (fr) * 1973-08-11 1975-03-07 Nippon Steel Corp
BE839471A (fr) * 1976-03-11 1976-07-01 Procede pour ameliorer la formabilite des aciers lamines a chaud

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS158627B2 (fr) 1967-11-07 1974-11-25
JPS4894618A (fr) * 1972-03-15 1973-12-05
US3857740A (en) * 1972-07-11 1974-12-31 Nippon Steel Corp Precipitation hardening high strength cold rolled steel sheet and method for producing same
SU435299A1 (ru) * 1973-01-12 1974-07-05 тельский институт черной металлургии И. П. Бардина Конструкционная сталь
US3944442A (en) * 1973-07-13 1976-03-16 The International Nickel Company, Inc. Air hardenable, formable steel
JPS5139524A (en) * 1974-10-01 1976-04-02 Kawasaki Steel Co Jikoshori nyoru kaifukugaichijirushiiteikofukuhikochoryokukohanno seizohoho
JPS5142012A (ja) * 1974-10-09 1976-04-09 Nippon Steel Corp Hizumijikokokanonosugureta kokyodoreienkohanno seizohoho
DE2526992C3 (de) * 1975-06-18 1980-06-19 Nippon Steel Corp., Tokio Verfahren zur Herstellung von warmgewalztem Stahlblech
US4033789A (en) * 1976-03-19 1977-07-05 Jones & Laughlin Steel Corporation Method of producing a high strength steel having uniform elongation
JPS5943531B2 (ja) * 1976-08-17 1984-10-23 新日本製鐵株式会社 加工性に優れた高強度冷延鋼板の製造法
US4159218A (en) * 1978-08-07 1979-06-26 National Steel Corporation Method for producing a dual-phase ferrite-martensite steel strip

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2238767A1 (fr) * 1973-07-25 1975-02-21 Nippon Kokan Kk
FR2240294A1 (fr) * 1973-08-11 1975-03-07 Nippon Steel Corp
BE839471A (fr) * 1976-03-11 1976-07-01 Procede pour ameliorer la formabilite des aciers lamines a chaud

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/78 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2486101A1 (fr) * 1980-07-05 1982-01-08 Nippon Steel Corp Tole d'acier laminee a froid, de solidite elevee, formable par pressage de structure a deux phases et procede pour la production de cette tole

Also Published As

Publication number Publication date
FR2428674B1 (fr) 1986-04-25
SE446883B (sv) 1986-10-13
BE877004A (fr) 1979-10-01
JPS54163721A (en) 1979-12-26
SE7905305L (sv) 1979-12-17
US4376661A (en) 1983-03-15
DE2924167C2 (de) 1983-12-22
DE2924167A1 (de) 1979-12-20
JPS5836650B2 (ja) 1983-08-10

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