EP4640888A4 - Kaltgewalztes stahlblech und verfahren zur herstellung davon - Google Patents

Kaltgewalztes stahlblech und verfahren zur herstellung davon

Info

Publication number
EP4640888A4
EP4640888A4 EP23907602.9A EP23907602A EP4640888A4 EP 4640888 A4 EP4640888 A4 EP 4640888A4 EP 23907602 A EP23907602 A EP 23907602A EP 4640888 A4 EP4640888 A4 EP 4640888A4
Authority
EP
European Patent Office
Prior art keywords
cold
production
steel sheet
rolled steel
rolled
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
EP23907602.9A
Other languages
English (en)
French (fr)
Other versions
EP4640888A1 (de
Inventor
Jong-Pan Kong
Eun-Young Kim
Sang-Ho 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.)
Posco Holdings Inc
Original Assignee
Posco Co 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 Posco Co Ltd filed Critical Posco Co Ltd
Publication of EP4640888A1 publication Critical patent/EP4640888A1/de
Publication of EP4640888A4 publication Critical patent/EP4640888A4/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
    • 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
    • C22C38/18—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
    • C22C38/28—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
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/22—Electroplating: Baths therefor from solutions of zinc
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/34—Pretreatment of metallic surfaces to be electroplated
    • C25D5/36—Pretreatment of metallic surfaces to be electroplated of iron or steel
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • C25D7/06—Wires; Strips; Foils
    • C25D7/0614—Strips or foils
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
EP23907602.9A 2022-12-20 2023-12-14 Kaltgewalztes stahlblech und verfahren zur herstellung davon Pending EP4640888A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020220179685A KR102883695B1 (ko) 2022-12-20 2022-12-20 냉연강판 및 그 제조방법
PCT/KR2023/020691 WO2024136316A1 (ko) 2022-12-20 2023-12-14 냉연강판 및 그 제조방법

Publications (2)

Publication Number Publication Date
EP4640888A1 EP4640888A1 (de) 2025-10-29
EP4640888A4 true EP4640888A4 (de) 2026-04-22

Family

ID=91589471

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23907602.9A Pending EP4640888A4 (de) 2022-12-20 2023-12-14 Kaltgewalztes stahlblech und verfahren zur herstellung davon

Country Status (6)

Country Link
EP (1) EP4640888A4 (de)
JP (1) JP2025541885A (de)
KR (1) KR102883695B1 (de)
CN (1) CN120344695A (de)
MX (1) MX2025005148A (de)
WO (1) WO2024136316A1 (de)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2687620A1 (de) * 2011-03-18 2014-01-22 Nippon Steel & Sumitomo Metal Corporation Stahlblech für heissgestanzte elemente und verfahren zu seiner herstellung
EP3305930A1 (de) * 2015-05-26 2018-04-11 Nippon Steel & Sumitomo Metal Corporation Stahlblech und verfahren zur herstellung davon
WO2018117544A1 (ko) * 2016-12-23 2018-06-28 주식회사 포스코 항복비가 낮고 균일연신율이 우수한 템퍼드 마르텐사이트 강 및 그 제조방법
WO2020250098A1 (en) * 2019-06-12 2020-12-17 Arcelormittal A cold rolled martensitic steel and a method of martensitic steel thereof
WO2022042622A1 (zh) * 2020-08-27 2022-03-03 宝山钢铁股份有限公司 一种具有超高屈强比的吉帕级贝氏体钢及其制造方法
KR102412400B1 (ko) * 2020-08-10 2022-06-24 주식회사 포스코 우수한 점용접성, 강도 및 성형성을 갖는 냉연강판 및 그 제조방법
EP4067524A1 (de) * 2020-01-31 2022-10-05 JFE Steel Corporation Stahlplatte, element und verfahren zur herstellung dieser stahlplatte und dieses elements
EP4079918A1 (de) * 2019-12-19 2022-10-26 Posco Abriebfester stahl mit hervorragender schneidrissbeständigkeit und verfahren zu seiner herstellung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5365216B2 (ja) * 2008-01-31 2013-12-11 Ｊｆｅスチール株式会社 高強度鋼板とその製造方法
JP5402191B2 (ja) 2009-04-15 2014-01-29 Ｊｆｅスチール株式会社 伸びフランジ性に優れた超高強度冷延鋼板およびその製造方法
JP4977879B2 (ja) * 2010-02-26 2012-07-18 Ｊｆｅスチール株式会社 曲げ性に優れた超高強度冷延鋼板
JP4947176B2 (ja) * 2010-03-24 2012-06-06 Ｊｆｅスチール株式会社 超高強度冷延鋼板の製造方法
JP6291289B2 (ja) 2013-03-06 2018-03-14 株式会社神戸製鋼所 鋼板形状および形状凍結性に優れた高強度冷延鋼板およびその製造方法
KR101620744B1 (ko) * 2014-12-05 2016-05-13 주식회사 포스코 고항복비형 초고강도 냉연강판 및 그 제조방법
KR101998652B1 (ko) * 2015-03-18 2019-07-10 제이에프이 스틸 가부시키가이샤 고강도 냉연 강판 및 그의 제조 방법
JP6835046B2 (ja) 2018-07-31 2021-02-24 Ｊｆｅスチール株式会社 薄鋼板及びその製造方法
CN115003839A (zh) * 2020-01-22 2022-09-02 日本制铁株式会社 钢板及其制造方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2687620A1 (de) * 2011-03-18 2014-01-22 Nippon Steel & Sumitomo Metal Corporation Stahlblech für heissgestanzte elemente und verfahren zu seiner herstellung
EP3305930A1 (de) * 2015-05-26 2018-04-11 Nippon Steel & Sumitomo Metal Corporation Stahlblech und verfahren zur herstellung davon
WO2018117544A1 (ko) * 2016-12-23 2018-06-28 주식회사 포스코 항복비가 낮고 균일연신율이 우수한 템퍼드 마르텐사이트 강 및 그 제조방법
WO2020250098A1 (en) * 2019-06-12 2020-12-17 Arcelormittal A cold rolled martensitic steel and a method of martensitic steel thereof
EP4079918A1 (de) * 2019-12-19 2022-10-26 Posco Abriebfester stahl mit hervorragender schneidrissbeständigkeit und verfahren zu seiner herstellung
EP4067524A1 (de) * 2020-01-31 2022-10-05 JFE Steel Corporation Stahlplatte, element und verfahren zur herstellung dieser stahlplatte und dieses elements
KR102412400B1 (ko) * 2020-08-10 2022-06-24 주식회사 포스코 우수한 점용접성, 강도 및 성형성을 갖는 냉연강판 및 그 제조방법
WO2022042622A1 (zh) * 2020-08-27 2022-03-03 宝山钢铁股份有限公司 一种具有超高屈强比的吉帕级贝氏体钢及其制造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2024136316A1 *

Also Published As

Publication number Publication date
MX2025005148A (es) 2025-06-02
KR102883695B1 (ko) 2025-11-10
JP2025541885A (ja) 2025-12-23
EP4640888A1 (de) 2025-10-29
CN120344695A (zh) 2025-07-18
WO2024136316A1 (ko) 2024-06-27
KR20240097541A (ko) 2024-06-27

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