EP4400614A4 - COLD ROLLED STEEL SHEET AND ITS MANUFACTURING PROCESS - Google Patents

COLD ROLLED STEEL SHEET AND ITS MANUFACTURING PROCESS Download PDF

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Publication number
EP4400614A4
EP4400614A4 EP22867200.2A EP22867200A EP4400614A4 EP 4400614 A4 EP4400614 A4 EP 4400614A4 EP 22867200 A EP22867200 A EP 22867200A EP 4400614 A4 EP4400614 A4 EP 4400614A4
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
EP22867200.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP4400614A1 (en
Inventor
Takafumi Yokoyama
Satoshi Hirose
Hiroyuki Tsuruoka
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
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of EP4400614A1 publication Critical patent/EP4400614A1/en
Publication of EP4400614A4 publication Critical patent/EP4400614A4/en
Pending legal-status Critical Current

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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/005—Heat treatment of ferrous alloys containing Mn
    • C—CHEMISTRY; METALLURGY
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    • 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
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    • 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
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    • 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
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    • 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
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    • 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
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    • C22C—ALLOYS
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    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
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    • C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
    • C—CHEMISTRY; METALLURGY
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    • C22C38/00—Ferrous alloys, e.g. steel alloys
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    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
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    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/22—Electroplating: Baths therefor from solutions of zinc

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  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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  • Oil, Petroleum & Natural Gas (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
EP22867200.2A 2021-09-09 2022-08-24 COLD ROLLED STEEL SHEET AND ITS MANUFACTURING PROCESS Pending EP4400614A4 (en)

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PCT/JP2022/031939 WO2023037878A1 (ja) 2021-09-09 2022-08-24 冷延鋼板およびその製造方法

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CN118726854A (zh) * 2024-06-27 2024-10-01 武汉钢铁有限公司 一种厚规格的冷轧高强钢及生产方法
CN119640153B (zh) * 2024-12-13 2025-08-26 燕山大学 一种高强高韧抗氧化热成形钢及其力学冶金制备方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013227657A (ja) * 2012-03-29 2013-11-07 Kobe Steel Ltd 鋼板形状に優れた高強度冷延鋼板の製造方法
WO2020162561A1 (ja) * 2019-02-06 2020-08-13 日本製鉄株式会社 溶融亜鉛めっき鋼板およびその製造方法
WO2021039776A1 (ja) * 2019-08-30 2021-03-04 Ｊｆｅスチール株式会社 鋼板、部材及びそれらの製造方法
EP3875625A1 (en) * 2018-10-31 2021-09-08 JFE Steel Corporation High-strength member, method for manufacturing high-strength member, and method for manufacturing steel sheet for high-strength member

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59211591A (ja) * 1983-05-14 1984-11-30 Kawasaki Steel Corp 耐食性などに優れたＺｎ−Ｆｅ−Ｐ系合金電気めつき鋼板
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
JP5482513B2 (ja) * 2010-06-30 2014-05-07 新日鐵住金株式会社 冷延鋼板およびその製造方法
WO2015151427A1 (ja) * 2014-03-31 2015-10-08 Ｊｆｅスチール株式会社 高降伏比高強度冷延鋼板およびその製造方法
JP6295893B2 (ja) 2014-08-29 2018-03-20 新日鐵住金株式会社 耐水素脆化特性に優れた超高強度冷延鋼板およびその製造方法
JP2016153524A (ja) 2015-02-13 2016-08-25 株式会社神戸製鋼所 切断端部での耐遅れ破壊特性に優れた超高強度鋼板
KR101987570B1 (ko) 2015-03-25 2019-06-10 제이에프이 스틸 가부시키가이샤 냉연 강판 및 그 제조 방법
KR101767780B1 (ko) * 2015-12-23 2017-08-24 주식회사 포스코 고항복비형 고강도 냉연강판 및 그 제조방법
KR102387095B1 (ko) * 2017-12-26 2022-04-14 제이에프이 스틸 가부시키가이샤 고강도 냉연 강판 및 그의 제조 방법

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013227657A (ja) * 2012-03-29 2013-11-07 Kobe Steel Ltd 鋼板形状に優れた高強度冷延鋼板の製造方法
EP3875625A1 (en) * 2018-10-31 2021-09-08 JFE Steel Corporation High-strength member, method for manufacturing high-strength member, and method for manufacturing steel sheet for high-strength member
WO2020162561A1 (ja) * 2019-02-06 2020-08-13 日本製鉄株式会社 溶融亜鉛めっき鋼板およびその製造方法
EP3922745A1 (en) * 2019-02-06 2021-12-15 Nippon Steel Corporation Hot-dip zinc-coated steel sheet and method for manufacturing same
WO2021039776A1 (ja) * 2019-08-30 2021-03-04 Ｊｆｅスチール株式会社 鋼板、部材及びそれらの製造方法
EP4001447A1 (en) * 2019-08-30 2022-05-25 JFE Steel Corporation Steel sheet, member, and methods for producing same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2023037878A1 *

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US20240263288A1 (en) 2024-08-08
CN117616144A (zh) 2024-02-27
WO2023037878A1 (ja) 2023-03-16
KR20240032929A (ko) 2024-03-12
MX2024000959A (es) 2024-02-09
JPWO2023037878A1 (https=) 2023-03-16
EP4400614A1 (en) 2024-07-17

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