EP4520846A4 - Kaltgewalztes stahlblech und verfahren zur herstellung davon - Google Patents

Kaltgewalztes stahlblech und verfahren zur herstellung davon

Info

Publication number
EP4520846A4
EP4520846A4 EP22940873.7A EP22940873A EP4520846A4 EP 4520846 A4 EP4520846 A4 EP 4520846A4 EP 22940873 A EP22940873 A EP 22940873A EP 4520846 A4 EP4520846 A4 EP 4520846A4
Authority
EP
European Patent Office
Prior art keywords
cold
steel sheet
rolled steel
manufacturing same
manufacturing
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
EP22940873.7A
Other languages
English (en)
French (fr)
Other versions
EP4520846A1 (de
Inventor
Kyeong Min Kim
Hyun Seong Noh
Han Sol Maeng
Nam Hoon Goo
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 EP4520846A1 publication Critical patent/EP4520846A1/de
Publication of EP4520846A4 publication Critical patent/EP4520846A4/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
    • C21D1/22—Martempering
    • 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
    • C21D1/78—Combined heat-treatments not provided for above
    • 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
    • C21D8/0263—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 following 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
    • C21D8/0247—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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing 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
    • C21D2211/001—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
    • C21D2211/005—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)
EP22940873.7A 2021-06-29 2022-12-05 Kaltgewalztes stahlblech und verfahren zur herstellung davon Pending EP4520846A4 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR20210085014 2021-06-29
KR1020220054587A KR102811823B1 (ko) 2021-06-29 2022-05-03 냉연 강판 및 그 제조방법
PCT/KR2022/019627 WO2023214634A1 (ko) 2021-06-29 2022-12-05 냉연 강판 및 그 제조방법

Publications (2)

Publication Number Publication Date
EP4520846A1 EP4520846A1 (de) 2025-03-12
EP4520846A4 true EP4520846A4 (de) 2025-08-13

Family

ID=84924071

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22940873.7A Pending EP4520846A4 (de) 2021-06-29 2022-12-05 Kaltgewalztes stahlblech und verfahren zur herstellung davon

Country Status (5)

Country Link
EP (1) EP4520846A4 (de)
JP (1) JP2025516275A (de)
KR (1) KR102811823B1 (de)
CN (1) CN119137301A (de)
WO (1) WO2023214634A1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3144406A1 (de) * 2014-05-13 2017-03-22 Posco Hochfestes kaltgewalztes stahlblech mit hervorragender dehnbarkeit, feuerverzinktes stahlblech und verfahren zur herstellung davon
EP3438315A1 (de) * 2016-03-28 2019-02-06 Posco Hochfestes kaltgewalztes stahlblech mit hervorragender streckgrenze und duktilität, beschichtete stahlplatte und verfahren zur herstellung davon
EP3757242A1 (de) * 2018-02-19 2020-12-30 JFE Steel Corporation Hochfeste stahlplatte und herstellungsverfahren dafür

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2439290B1 (de) * 2010-10-05 2013-11-27 ThyssenKrupp Steel Europe AG Mehrphasenstahl, aus einem solchen Mehrphasenstahl hergestelltes kaltgewalztes Flachprodukt und Verfahren zu dessen Herstellung
JP5857909B2 (ja) * 2012-08-09 2016-02-10 新日鐵住金株式会社 鋼板およびその製造方法
SG11201707232TA (en) 2015-07-31 2017-10-30 Ismeca Semiconductor Holding Sa An assembly and method for handling components
KR101736635B1 (ko) * 2015-12-23 2017-05-17 주식회사 포스코 표면처리 특성 및 용접성이 우수한 고강도 냉연강판, 용융아연도금강판 및 이들의 제조방법
KR101808430B1 (ko) * 2016-06-21 2017-12-13 현대제철 주식회사 자동차용 냉연강판 및 이의 제조 방법
KR102387095B1 (ko) * 2017-12-26 2022-04-14 제이에프이 스틸 가부시키가이샤 고강도 냉연 강판 및 그의 제조 방법
EP3825432B1 (de) * 2018-08-22 2023-02-15 JFE Steel Corporation Hochfestes stahlblech und herstellungsverfahren dafür
WO2020109098A1 (en) * 2018-11-29 2020-06-04 Tata Steel Nederland Technology B.V. A method for producing a high strength steel strip with a good deep drawability and a high strength steel produced thereby
KR102468051B1 (ko) * 2020-10-23 2022-11-18 주식회사 포스코 연성이 우수한 초고강도 강판 및 그 제조방법
KR102372546B1 (ko) * 2021-07-27 2022-03-10 현대제철 주식회사 연신율이 우수한 초고강도 강판 및 그 제조방법

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3144406A1 (de) * 2014-05-13 2017-03-22 Posco Hochfestes kaltgewalztes stahlblech mit hervorragender dehnbarkeit, feuerverzinktes stahlblech und verfahren zur herstellung davon
EP3438315A1 (de) * 2016-03-28 2019-02-06 Posco Hochfestes kaltgewalztes stahlblech mit hervorragender streckgrenze und duktilität, beschichtete stahlplatte und verfahren zur herstellung davon
EP3757242A1 (de) * 2018-02-19 2020-12-30 JFE Steel Corporation Hochfeste stahlplatte und herstellungsverfahren dafür

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2023214634A1 *

Also Published As

Publication number Publication date
WO2023214634A1 (ko) 2023-11-09
EP4520846A1 (de) 2025-03-12
KR102811823B1 (ko) 2025-05-28
JP2025516275A (ja) 2025-05-27
CN119137301A (zh) 2024-12-13
KR20230004237A (ko) 2023-01-06

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Ipc: C22C 38/04 20060101AFI20250708BHEP

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