DE3851371D1 - Warmgewalztes hochfestes Stahlblech mit ausgezeichneter Umformbarkeit. - Google Patents

Warmgewalztes hochfestes Stahlblech mit ausgezeichneter Umformbarkeit.

Info

Publication number
DE3851371D1
DE3851371D1 DE3851371T DE3851371T DE3851371D1 DE 3851371 D1 DE3851371 D1 DE 3851371D1 DE 3851371 T DE3851371 T DE 3851371T DE 3851371 T DE3851371 T DE 3851371T DE 3851371 D1 DE3851371 D1 DE 3851371D1
Authority
DE
Germany
Prior art keywords
steel sheet
high strength
hot rolled
strength steel
excellent formability
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.)
Expired - Lifetime
Application number
DE3851371T
Other languages
English (en)
Other versions
DE3851371T3 (de
DE3851371T2 (de
Inventor
Osamu Kawano
Manabu Takahashi
Junichi Wakita
Kazuyoshi Esaka
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26384460&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3851371(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from JP63044527A external-priority patent/JPS6479345A/ja
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of DE3851371D1 publication Critical patent/DE3851371D1/de
Application granted granted Critical
Publication of DE3851371T2 publication Critical patent/DE3851371T2/de
Publication of DE3851371T3 publication Critical patent/DE3851371T3/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • 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
    • 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

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)
DE3851371T 1987-06-03 1988-06-01 Warmgewalztes hochfestes Stahlblech mit ausgezeichneter Umformbarkeit. Expired - Lifetime DE3851371T3 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP13806087 1987-06-03
JP138060/87 1987-06-03
JP63044527A JPS6479345A (en) 1987-06-03 1988-02-29 High-strength hot rolled steel plate excellent in workability and its production
JP44527/88 1988-02-29

Publications (3)

Publication Number Publication Date
DE3851371D1 true DE3851371D1 (de) 1994-10-13
DE3851371T2 DE3851371T2 (de) 1995-05-04
DE3851371T3 DE3851371T3 (de) 2004-04-29

Family

ID=26384460

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3851371T Expired - Lifetime DE3851371T3 (de) 1987-06-03 1988-06-01 Warmgewalztes hochfestes Stahlblech mit ausgezeichneter Umformbarkeit.

Country Status (3)

Country Link
US (2) US5017248A (de)
EP (1) EP0295500B2 (de)
DE (1) DE3851371T3 (de)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5338380A (en) * 1985-08-29 1994-08-16 Kabushiki Kaisha Kobe Seiko Sho High strength low carbon steel wire rods and method of producing them
CA1332210C (en) * 1985-08-29 1994-10-04 Masaaki Katsumata High strength low carbon steel wire rods and method of producing them
JP2952624B2 (ja) * 1991-05-30 1999-09-27 新日本製鐵株式会社 成形性とスポット溶接性に優れた高降伏比型熱延高強度鋼板とその製造方法および成形性に優れた高降伏比型熱延高強度鋼板とその製造方法
DE69323441T2 (de) * 1992-03-06 1999-06-24 Kawasaki Steel Co Herstellung von hoch zugfestem Stahlblech mit ausgezeichneter Streckbördel-Verformfähigkeit
EP0585843A3 (en) * 1992-08-28 1996-06-26 Toyota Motor Co Ltd High-formability steel plate with a great potential for strength enhancement by high-density energy treatment
SG43918A1 (en) * 1993-04-26 1997-11-14 Nippon Steel Corp Thin steel sheet having excellent stretch-flange ability and process for producing the same
US5470529A (en) * 1994-03-08 1995-11-28 Sumitomo Metal Industries, Ltd. High tensile strength steel sheet having improved formability
FR2748033B1 (fr) * 1996-04-26 1998-05-22 Lorraine Laminage Procede de realisation d'une bande de tole d'acier laminee a chaud a tres haute resistance utilisable pour la mise en forme et notamment pour l'emboutissage
WO1998023785A1 (fr) * 1996-11-28 1998-06-04 Nippon Steel Corporation Plaque d'acier a haute resistance mecanique dotee d'une forte resistance a la deformation dynamique et procede de fabrication correspondant
US6319338B1 (en) * 1996-11-28 2001-11-20 Nippon Steel Corporation High-strength steel plate having high dynamic deformation resistance and method of manufacturing the same
US6544354B1 (en) * 1997-01-29 2003-04-08 Nippon Steel Corporation High-strength steel sheet highly resistant to dynamic deformation and excellent in workability and process for the production thereof
BE1011149A3 (fr) * 1997-05-12 1999-05-04 Cockerill Rech & Dev Acier ductile a haute limite elastique et procede de fabrication de cet acier.
JP3039862B1 (ja) * 1998-11-10 2000-05-08 川崎製鉄株式会社 超微細粒を有する加工用熱延鋼板
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
BE1013359A3 (fr) * 2000-03-22 2001-12-04 Centre Rech Metallurgique Procede pour la fabrication d'une bande en acier multiphase laminee a chaud.
US6488790B1 (en) 2001-01-22 2002-12-03 International Steel Group Inc. Method of making a high-strength low-alloy hot rolled steel
DE50208550D1 (de) * 2002-08-28 2006-12-07 Thyssenkrupp Steel Ag Verfahren zum Herstellen eines perlitfreien warmgewalzten Stahlbands und nach diesem Verfahren hergestelltes Warmband
ATE526424T1 (de) 2003-08-29 2011-10-15 Kobe Steel Ltd Hohes stahlblech der dehnfestigkeit ausgezeichnet für die verarbeitung und proze für die produktion desselben
JP4716359B2 (ja) * 2005-03-30 2011-07-06 株式会社神戸製鋼所 均一伸びに優れた高強度冷延鋼板およびその製造方法
DE102005051052A1 (de) * 2005-10-25 2007-04-26 Sms Demag Ag Verfahren zur Herstellung von Warmband mit Mehrphasengefüge
JP5214905B2 (ja) * 2007-04-17 2013-06-19 株式会社中山製鋼所 高強度熱延鋼板およびその製造方法
CN101802238B (zh) * 2007-08-01 2012-05-23 株式会社神户制钢所 弯曲加工性和耐疲劳强度优异的高强度钢板
WO2013065346A1 (ja) * 2011-11-01 2013-05-10 Ｊｆｅスチール株式会社 曲げ特性と低温靭性に優れた高強度熱延鋼板およびその製造方法
FR3044953B1 (fr) 2015-12-10 2018-05-18 Reydel Automotive B.V. Dispositif de moule de thermoformage par aspiration et procede de fabrication le mettant en oeuvre

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5421917A (en) * 1977-07-20 1979-02-19 Nippon Kokan Kk <Nkk> Method of manufacturing non-quenched high-tensile steel having high toughness
JPS54132421A (en) * 1978-04-05 1979-10-15 Nippon Steel Corp Manufacture of high toughness bainite high tensile steel plate with superior weldability
JPS54163719A (en) * 1978-06-16 1979-12-26 Nippon Steel Corp Production of high tensile strength * low yield ratio and high extensibility composite textured steel panel with excellent workability
US4397698A (en) * 1979-11-06 1983-08-09 Republic Steel Corporation Method of making as-hot-rolled plate
JPS5767130A (en) * 1980-10-14 1982-04-23 Kawasaki Steel Corp Production of hot rolled dual phase high tensile steel plate
US4501626A (en) * 1980-10-17 1985-02-26 Kabushiki Kaisha Kobe Seiko Sho High strength steel plate and method for manufacturing same
JPS6043425A (ja) * 1983-08-15 1985-03-08 Nippon Kokan Kk <Nkk> 熱延高強度高加工性複合組織鋼板の製造方法
JPS60165320A (ja) * 1984-02-06 1985-08-28 Nippon Steel Corp 良加工性高張力熱延薄鋼板の製造方法
JPS60184664A (ja) * 1984-02-29 1985-09-20 Nippon Steel Corp 安定な残留オ−ステナイトを含む高延性高張力鋼
JPS60181230A (ja) * 1984-02-29 1985-09-14 Nippon Steel Corp 加工性に優れた高張力熱延鋼板の製造方法
JPS61136633A (ja) * 1984-12-06 1986-06-24 Kawasaki Steel Corp 非調質高張力鋼の製造法
EP0205828B1 (de) * 1985-06-10 1989-10-18 Hoesch Aktiengesellschaft Verfahren und Verwendung eines Stahles zur Herstellung von Stahlrohren mit erhöhter Sauergasbeständigkeit
JPH0641617B2 (ja) * 1986-06-24 1994-06-01 新日本製鐵株式会社 加工性に優れた熱延高強度鋼板の製造方法

Also Published As

Publication number Publication date
US5030298A (en) 1991-07-09
EP0295500A1 (de) 1988-12-21
US5017248A (en) 1991-05-21
DE3851371T3 (de) 2004-04-29
DE3851371T2 (de) 1995-05-04
EP0295500B1 (de) 1994-09-07
EP0295500B2 (de) 2003-09-10

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8366 Restricted maintained after opposition proceedings