EP3225708A4 - Tôle d'acier à haute résistance et à haute ductilité - Google Patents

Tôle d'acier à haute résistance et à haute ductilité Download PDF

Info

Publication number
EP3225708A4
EP3225708A4 EP15862199.5A EP15862199A EP3225708A4 EP 3225708 A4 EP3225708 A4 EP 3225708A4 EP 15862199 A EP15862199 A EP 15862199A EP 3225708 A4 EP3225708 A4 EP 3225708A4
Authority
EP
European Patent Office
Prior art keywords
steel sheet
ductility steel
strength
strength high
ductility
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.)
Withdrawn
Application number
EP15862199.5A
Other languages
German (de)
English (en)
Other versions
EP3225708A1 (fr
Inventor
Toshio Murakami
Shigeo Otani
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Publication of EP3225708A1 publication Critical patent/EP3225708A1/fr
Publication of EP3225708A4 publication Critical patent/EP3225708A4/fr
Withdrawn legal-status Critical Current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
    • 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
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • 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
    • C21D8/0221—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
    • 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
    • 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
    • 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
    • C21D8/04—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 to produce plates or strips for drawing, e.g. for deep-drawing
    • 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
    • C21D8/04—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 to produce plates or strips for drawing, e.g. for deep-drawing
    • C21D8/0421—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 to produce plates or strips for drawing, e.g. for deep-drawing characterised by the working steps
    • 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
    • C21D8/04—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 to produce plates or strips for drawing, e.g. for deep-drawing
    • C21D8/0447—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 to produce plates or strips for drawing, e.g. for deep-drawing characterised by the heat treatment
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • 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
    • 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
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • 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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • 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
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • 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
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of 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
    • 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
    • C21D2211/008—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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/005—Heat treatment of ferrous alloys containing Mn
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/008—Heat treatment of ferrous alloys containing Si
    • 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
    • C21D8/04—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 to produce plates or strips for drawing, e.g. for deep-drawing
    • C21D8/0421—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 to produce plates or strips for drawing, e.g. 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 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
    • C21D8/04—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 to produce plates or strips for drawing, e.g. for deep-drawing
    • C21D8/0421—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 to produce plates or strips for drawing, e.g. for deep-drawing characterised by the working steps
    • C21D8/0436—Cold 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)
EP15862199.5A 2014-11-26 2015-11-25 Tôle d'acier à haute résistance et à haute ductilité Withdrawn EP3225708A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014238710A JP6282577B2 (ja) 2014-11-26 2014-11-26 高強度高延性鋼板
PCT/JP2015/083078 WO2016084847A1 (fr) 2014-11-26 2015-11-25 Tôle d'acier à haute résistance et à haute ductilité

Publications (2)

Publication Number Publication Date
EP3225708A1 EP3225708A1 (fr) 2017-10-04
EP3225708A4 true EP3225708A4 (fr) 2018-05-02

Family

ID=56074399

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15862199.5A Withdrawn EP3225708A4 (fr) 2014-11-26 2015-11-25 Tôle d'acier à haute résistance et à haute ductilité

Country Status (6)

Country Link
US (1) US20170268077A1 (fr)
EP (1) EP3225708A4 (fr)
JP (1) JP6282577B2 (fr)
KR (1) KR102111921B1 (fr)
CN (1) CN107002192B (fr)
WO (1) WO2016084847A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017109538A1 (fr) 2015-12-21 2017-06-29 Arcelormittal Procédé de production d'une tôle d'acier présentant une résistance, une ductilité et une aptitude au formage améliorées
WO2017208763A1 (fr) * 2016-05-30 2017-12-07 株式会社神戸製鋼所 Tôle d'acier à haute résistance et son procédé de production
CN108018484B (zh) * 2016-10-31 2020-01-31 宝山钢铁股份有限公司 抗拉强度1500MPa以上成形性优良的冷轧高强钢及其制造方法
WO2018115936A1 (fr) * 2016-12-21 2018-06-28 Arcelormittal Tôle d'acier revêtue et revenue présentant une excellente formabilité et son procédé de fabrication
WO2018115933A1 (fr) * 2016-12-21 2018-06-28 Arcelormittal Tôle d'acier laminée à froid à haute résistance présentant une formabilité élevée et son procédé de fabrication
WO2018115935A1 (fr) 2016-12-21 2018-06-28 Arcelormittal Tôle d'acier revêtue et revenue présentant une excellente formabilité et son procédé de fabrication
JP6860420B2 (ja) * 2017-05-24 2021-04-14 株式会社神戸製鋼所 高強度鋼板およびその製造方法
JP6849536B2 (ja) * 2017-05-31 2021-03-24 株式会社神戸製鋼所 高強度鋼板およびその製造方法
EP3688203B1 (fr) * 2017-09-28 2022-04-27 ThyssenKrupp Steel Europe AG Produit d'acier plat et son procédé de fabrication
CN113316656B (zh) * 2019-01-18 2022-11-04 杰富意钢铁株式会社 高强度热浸镀锌钢板及其制造方法
KR102616426B1 (ko) * 2019-12-20 2023-12-27 닛폰세이테츠 가부시키가이샤 Ni 도금 강판 및 Ni 도금 강판의 제조 방법
CN113308593B (zh) * 2021-05-28 2022-08-09 四川大学 一种基于碳配分和两步等温淬火的中碳硅锰低合金钢热处理工艺
CN117836459A (zh) * 2021-08-31 2024-04-05 杰富意钢铁株式会社 钢板、构件和它们的制造方法
CN114908287B (zh) * 2022-04-11 2023-04-14 武汉科技大学 一种低合金轻量化高强汽车用钢及生产方法
CN115896405A (zh) * 2022-09-05 2023-04-04 马鞍山钢铁股份有限公司 一种含异质奥氏体的快速加热热成形钢及其制造方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110186189A1 (en) * 2010-01-29 2011-08-04 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) High-strength cold-rolled steel sheet excellent in workability and method for manufacturing the same
JP2013032581A (ja) * 2011-07-06 2013-02-14 Nippon Steel & Sumitomo Metal Corp 冷延鋼板の製造方法
WO2013146087A1 (fr) * 2012-03-29 2013-10-03 株式会社神戸製鋼所 Procédé de fabrication d'acier laminé à froid haute résistance ayant une aptitude au façonnage exceptionnelle

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004022794A1 (fr) * 2002-09-04 2004-03-18 Colorado School Of Mines Procede de production d'acier a austenite residuelle
JP4109619B2 (ja) * 2003-12-16 2008-07-02 株式会社神戸製鋼所 伸び、及び伸びフランジ性に優れた高強度鋼板
JP2005336526A (ja) * 2004-05-25 2005-12-08 Kobe Steel Ltd 加工性に優れた高強度鋼板及びその製造方法
JP4716358B2 (ja) * 2005-03-30 2011-07-06 株式会社神戸製鋼所 強度と加工性のバランスに優れた高強度冷延鋼板およびめっき鋼板
JP5365112B2 (ja) * 2008-09-10 2013-12-11 Ｊｆｅスチール株式会社 高強度鋼板およびその製造方法
JP5418047B2 (ja) * 2008-09-10 2014-02-19 Ｊｆｅスチール株式会社 高強度鋼板およびその製造方法
JP2010065272A (ja) * 2008-09-10 2010-03-25 Jfe Steel Corp 高強度鋼板およびその製造方法
JP5400484B2 (ja) * 2009-06-09 2014-01-29 株式会社神戸製鋼所 伸び、伸びフランジ性および溶接性を兼備した高強度冷延鋼板
BR112012018697B1 (pt) * 2010-01-29 2018-11-21 Nippon Steel & Sumitomo Metal Corporation chapa de aço e método de produção da chapa de aço
JP5807368B2 (ja) 2010-06-16 2015-11-10 新日鐵住金株式会社 圧延方向に対して４５°の方向の均一伸びが極めて高い高強度冷延鋼板及びその製造方法
JP5589925B2 (ja) 2010-06-28 2014-09-17 新日鐵住金株式会社 伸びと均一塗装焼付硬化性能に優れた高強度薄鋼板およびその製造方法
JP5719545B2 (ja) 2010-08-13 2015-05-20 新日鐵住金株式会社 伸びとプレス成形安定性に優れた高強度薄鋼板

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110186189A1 (en) * 2010-01-29 2011-08-04 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) High-strength cold-rolled steel sheet excellent in workability and method for manufacturing the same
JP2013032581A (ja) * 2011-07-06 2013-02-14 Nippon Steel & Sumitomo Metal Corp 冷延鋼板の製造方法
WO2013146087A1 (fr) * 2012-03-29 2013-10-03 株式会社神戸製鋼所 Procédé de fabrication d'acier laminé à froid haute résistance ayant une aptitude au façonnage exceptionnelle
US20150101712A1 (en) * 2012-03-29 2015-04-16 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Method for manufacturing high-strength cold-rolled steel sheet with outstanding workability

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
YUN-CHUL JUNG ET AL: "Morphology and growth process of bainitic ferrite in steels", METALS AND MATERIALS (INSTITUTE OF METALS), vol. 4, no. 2, 1 March 1998 (1998-03-01), pages 125 - 134, XP055458188, ISSN: 1225-9438, DOI: 10.1007/BF03026029 *

Also Published As

Publication number Publication date
EP3225708A1 (fr) 2017-10-04
WO2016084847A1 (fr) 2016-06-02
KR20170070230A (ko) 2017-06-21
JP6282577B2 (ja) 2018-02-21
JP2016098427A (ja) 2016-05-30
US20170268077A1 (en) 2017-09-21
CN107002192B (zh) 2019-03-08
CN107002192A (zh) 2017-08-01
KR102111921B1 (ko) 2020-05-18

Similar Documents

Publication Publication Date Title
EP3124637A4 (fr) Élément de tôle d'acier formé à chaud à haute résistance
EP3225708A4 (fr) Tôle d'acier à haute résistance et à haute ductilité
EP3216886A4 (fr) Tôle d'acier galvanisée par immersion à chaud
EP3214197A4 (fr) Tôle d'acier hautement résistante, et procédé de fabrication de celle-ci
EP3112488A4 (fr) Tôle d'acier laminée à chaud à haute résistance et son procédé de fabrication
EP3214196A4 (fr) Tôle d'acier hautement résistante, et procédé de fabrication de celle-ci
EP3101147A4 (fr) Tôle d'acier laminée à froid à haute résistance, et son procédé de fabrication
EP3260565A4 (fr) Tôle d'acier laminée à chaud
EP3287532A4 (fr) Tôle d'acier électromagnétique orientée
EP3216887A4 (fr) Tôle d'acier galvanisée par immersion à chaud
EP3178949A4 (fr) Tôle d'acier à haute résistance ainsi que procédé de fabrication de celle-ci
EP3162908B8 (fr) Plaque d'acier laminée à chaud
EP3187613A4 (fr) Tôle d'acier laminée à froid de résistance élevée et son procédé de production
TWI563101B (en) Hot-formed steel sheet member
EP3187601A4 (fr) Tôle d'acier à haute résistance ainsi que procédé de fabrication de celle-ci
EP3216891A4 (fr) Tôle d'acier galvanisée par immersion à chaud
EP3330394A4 (fr) Tôle d'acier laminée à chaud à résistance élevée
EP3153598A4 (fr) Plaque d'acier laminée à chaud
PL3164513T3 (pl) Sposób wytwarzania blachy o wysokiej wytrzymałości i blacha otrzymana tym sposobem
EP3260566A4 (fr) Tôle d'acier laminée à chaud
EP3241921A4 (fr) Tôle d'acier galvanisée
EP3222741A4 (fr) Plaque d'acier très résistante et très ductile
EP3138936A4 (fr) Tôle d'acier à haute résistance et son procédé de production
EP3287537A4 (fr) Tôle d'acier électromagnétique orientée
EP3128038A4 (fr) Matériau d'acier d'estampage à chaud

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20170601

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
RIC1 Information provided on ipc code assigned before grant

Ipc: C21D 8/00 20060101ALI20180320BHEP

Ipc: C22C 38/16 20060101ALI20180320BHEP

Ipc: C22C 38/02 20060101ALI20180320BHEP

Ipc: C22C 38/12 20060101ALI20180320BHEP

Ipc: C22C 38/58 20060101ALI20180320BHEP

Ipc: C21D 9/46 20060101ALI20180320BHEP

Ipc: C22C 38/06 20060101ALI20180320BHEP

Ipc: C22C 38/18 20060101ALI20180320BHEP

Ipc: C22C 38/04 20060101ALI20180320BHEP

Ipc: C21D 1/20 20060101ALI20180320BHEP

Ipc: C22C 38/14 20060101ALI20180320BHEP

Ipc: C21D 6/00 20060101ALI20180320BHEP

Ipc: C21D 8/02 20060101ALI20180320BHEP

Ipc: C22C 38/00 20060101AFI20180320BHEP

Ipc: C22C 38/08 20060101ALI20180320BHEP

Ipc: C21D 8/04 20060101ALI20180320BHEP

A4 Supplementary search report drawn up and despatched

Effective date: 20180329

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20181030