EP4534720A4 - Ultrahochfestes kaltgewalztes stahlblech und herstellungsverfahren dafür - Google Patents

Ultrahochfestes kaltgewalztes stahlblech und herstellungsverfahren dafür

Info

Publication number
EP4534720A4
EP4534720A4 EP22945040.8A EP22945040A EP4534720A4 EP 4534720 A4 EP4534720 A4 EP 4534720A4 EP 22945040 A EP22945040 A EP 22945040A EP 4534720 A4 EP4534720 A4 EP 4534720A4
Authority
EP
European Patent Office
Prior art keywords
ultra
steel sheet
rolled steel
manufacturing processes
strength cold
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.)
Pending
Application number
EP22945040.8A
Other languages
English (en)
French (fr)
Other versions
EP4534720A1 (de
Inventor
Ro Sa Kim
Hyun Seong Noh
Han Sol Maeng
Ho Yong Um
Gyu Jin Oh
Sang Wook Lee
Seong Kyung Han
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.)
Hyundai Steel Co
Original Assignee
Hyundai Steel Co
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 Hyundai Steel Co filed Critical Hyundai Steel Co
Publication of EP4534720A1 publication Critical patent/EP4534720A1/de
Publication of EP4534720A4 publication Critical patent/EP4534720A4/de
Pending 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
    • 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
    • C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
    • 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
    • C21D1/84—Controlled slow cooling
    • 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
    • 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
    • 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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/18—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
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
    • 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
    • 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
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C21D2211/005—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

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)
EP22945040.8A 2022-05-31 2022-12-05 Ultrahochfestes kaltgewalztes stahlblech und herstellungsverfahren dafür Pending EP4534720A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020220066960A KR102747793B1 (ko) 2022-05-31 2022-05-31 초고강도 냉연강판 및 그 제조방법
PCT/KR2022/019634 WO2023234502A1 (ko) 2022-05-31 2022-12-05 초고강도 냉연강판 및 그 제조방법

Publications (2)

Publication Number Publication Date
EP4534720A1 EP4534720A1 (de) 2025-04-09
EP4534720A4 true EP4534720A4 (de) 2025-11-19

Family

ID=89025153

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22945040.8A Pending EP4534720A4 (de) 2022-05-31 2022-12-05 Ultrahochfestes kaltgewalztes stahlblech und herstellungsverfahren dafür

Country Status (6)

Country Link
US (1) US20250092497A1 (de)
EP (1) EP4534720A4 (de)
JP (1) JP2025519191A (de)
KR (1) KR102747793B1 (de)
CN (1) CN119403949A (de)
WO (1) WO2023234502A1 (de)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2267176A1 (de) * 2008-02-08 2010-12-29 JFE Steel Corporation Hochfestes heissverzinktes stahlblech mit hervorragender verarbeitbarkeit und herstellungsverfahren dafür
EP3397785B1 (de) * 2015-12-29 2020-02-05 Arcelormittal Verfahren zur herstellung eines ultrahochfesten galvannealed-stahlblechs und hergestelltes galvannealed-stahlblech
KR20200075957A (ko) * 2018-12-18 2020-06-29 주식회사 포스코 강도와 연성의 밸런스 및 가공성이 우수한 강판 및 그 제조방법
WO2020221889A1 (en) * 2019-04-30 2020-11-05 Tata Steel Nederland Technology B.V. A high strength steel product and a process to produce a high strength steel product
WO2020254190A1 (en) * 2019-06-17 2020-12-24 Tata Steel Ijmuiden B.V. Method of heat treating a high strength cold rolled steel strip
US20220017985A1 (en) * 2018-12-18 2022-01-20 Arcelormittal Cold rolled and heat-treated steel sheet and method of manufacturing the same

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2683839B1 (de) * 2011-03-07 2015-04-01 Tata Steel Nederland Technology B.V. Verfahren zur herstellung von hochfestem formbarem stahl und damit hergestellter hochfester formbarer stahl
US9896751B2 (en) * 2011-07-29 2018-02-20 Nippon Steel & Sumitomo Metal Corporation High strength steel sheet and high strength galvanized steel sheet excellent in shapeability and methods of production of same
ES2651149T5 (es) * 2012-03-30 2021-02-15 Voestalpine Stahl Gmbh Chapa de acero de alta resistencia laminada en frío y procedimiento de fabricación de dicha chapa de acero
WO2017002883A1 (ja) * 2015-06-30 2017-01-05 新日鐵住金株式会社 高強度冷延鋼板、高強度溶融亜鉛めっき鋼板、および高強度合金化溶融亜鉛めっき鋼板
KR101859068B1 (ko) 2016-10-31 2018-06-28 한전케이디엔주식회사 선로 상태 판단 장치
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
WO2019003448A1 (ja) * 2017-06-30 2019-01-03 Ｊｆｅスチール株式会社 熱間プレス部材およびその製造方法ならびに熱間プレス用冷延鋼板
WO2019092482A1 (en) * 2017-11-10 2019-05-16 Arcelormittal Cold rolled heat treated steel sheet and a method of manufacturing thereof
KR102276740B1 (ko) * 2018-12-18 2021-07-13 주식회사 포스코 연성 및 가공성이 우수한 고강도 강판 및 그 제조방법
KR20220071035A (ko) * 2020-11-23 2022-05-31 현대제철 주식회사 초고강도 냉연강판 및 그 제조방법

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2267176A1 (de) * 2008-02-08 2010-12-29 JFE Steel Corporation Hochfestes heissverzinktes stahlblech mit hervorragender verarbeitbarkeit und herstellungsverfahren dafür
EP3397785B1 (de) * 2015-12-29 2020-02-05 Arcelormittal Verfahren zur herstellung eines ultrahochfesten galvannealed-stahlblechs und hergestelltes galvannealed-stahlblech
KR20200075957A (ko) * 2018-12-18 2020-06-29 주식회사 포스코 강도와 연성의 밸런스 및 가공성이 우수한 강판 및 그 제조방법
US20220017985A1 (en) * 2018-12-18 2022-01-20 Arcelormittal Cold rolled and heat-treated steel sheet and method of manufacturing the same
WO2020221889A1 (en) * 2019-04-30 2020-11-05 Tata Steel Nederland Technology B.V. A high strength steel product and a process to produce a high strength steel product
WO2020254190A1 (en) * 2019-06-17 2020-12-24 Tata Steel Ijmuiden B.V. Method of heat treating a high strength cold rolled steel strip

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2023234502A1 *

Also Published As

Publication number Publication date
WO2023234502A1 (ko) 2023-12-07
JP2025519191A (ja) 2025-06-24
KR102747793B1 (ko) 2024-12-31
EP4534720A1 (de) 2025-04-09
US20250092497A1 (en) 2025-03-20
KR20230166684A (ko) 2023-12-07
CN119403949A (zh) 2025-02-07

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