EP4575008A4 - Dickes stahlblech und verfahren zur herstellung davon - Google Patents

Dickes stahlblech und verfahren zur herstellung davon

Info

Publication number
EP4575008A4
EP4575008A4 EP23854722.8A EP23854722A EP4575008A4 EP 4575008 A4 EP4575008 A4 EP 4575008A4 EP 23854722 A EP23854722 A EP 23854722A EP 4575008 A4 EP4575008 A4 EP 4575008A4
Authority
EP
European Patent Office
Prior art keywords
making
steel sheet
thick steel
thick
sheet
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
EP23854722.8A
Other languages
English (en)
French (fr)
Other versions
EP4575008A1 (de
Inventor
Masao Yuga
Yuya Sato
Shunichi Murakami
Yoshiaki Murakami
Hitoshi Sueyoshi
Yoshihiro Hyodo
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.)
JFE Steel Corp
Original Assignee
JFE 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 JFE Steel Corp filed Critical JFE Steel Corp
Publication of EP4575008A1 publication Critical patent/EP4575008A1/de
Publication of EP4575008A4 publication Critical patent/EP4575008A4/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
    • C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
    • C21D1/60—Aqueous agents
    • 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
    • C21D8/0247—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
    • C22C38/002—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
    • C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
    • 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
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • C22C38/14—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
    • C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with 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
    • 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
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
    • 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
    • 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
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
    • 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

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 Steel (AREA)
EP23854722.8A 2022-08-19 2023-06-27 Dickes stahlblech und verfahren zur herstellung davon Pending EP4575008A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/JP2022/031459 WO2024038612A1 (ja) 2022-08-19 2022-08-19 厚鋼板およびその製造方法
PCT/JP2023/023875 WO2024038684A1 (ja) 2022-08-19 2023-06-27 厚鋼板およびその製造方法

Publications (2)

Publication Number Publication Date
EP4575008A1 EP4575008A1 (de) 2025-06-25
EP4575008A4 true EP4575008A4 (de) 2025-12-03

Family

ID=89941475

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23854722.8A Pending EP4575008A4 (de) 2022-08-19 2023-06-27 Dickes stahlblech und verfahren zur herstellung davon

Country Status (6)

Country Link
EP (1) EP4575008A4 (de)
JP (1) JP7444343B1 (de)
KR (1) KR20250011693A (de)
CN (1) CN119731360A (de)
TW (1) TWI857697B (de)
WO (2) WO2024038612A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2025197191A1 (de) * 2024-03-19 2025-09-25
CN121161170A (zh) * 2025-11-19 2025-12-19 宝山钢铁股份有限公司 加工性及疲劳性优异的钢材及其制备方法和汽车零部件

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004300567A (ja) * 2003-03-19 2004-10-28 Kobe Steel Ltd 高張力鋼板およびその製造方法
JP2015190008A (ja) * 2014-03-28 2015-11-02 Ｊｆｅスチール株式会社 溶接熱影響部靭性に優れた非調質低降伏比高張力厚鋼板およびその製造方法
WO2017017961A1 (ja) * 2015-07-29 2017-02-02 Ｊｆｅスチール株式会社 冷延鋼板、めっき鋼板及びこれらの製造方法
EP3438311A1 (de) * 2016-03-31 2019-02-06 JFE Steel Corporation Dünnes stahlblech, verzinktes stahlblech, verfahren zur herstellung von warmgewalztem stahlblech, verfahren zur herstellung von kaltgewalztem vollhartem stahlblech, verfahren zur herstellung von wärmebehandeltem blech, verfahren zur herstellung von dünnem stahlblech und verfahren zur herstellung von verzinktem stahlblech

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06248337A (ja) 1993-02-25 1994-09-06 Nippon Steel Corp 溶接性の優れた低降伏比７８０Ｎ／ｍｍ２級高張力鋼の製造法
JP3602396B2 (ja) 2000-02-15 2004-12-15 株式会社神戸製鋼所 溶接性に優れた低降伏比高張力鋼板
JP5055774B2 (ja) * 2005-03-17 2012-10-24 Ｊｆｅスチール株式会社 高変形性能を有するラインパイプ用鋼板およびその製造方法。
JP2013129885A (ja) * 2011-12-22 2013-07-04 Jfe Steel Corp 脆性亀裂伝播停止特性に優れた高強度厚鋼板の製造方法
WO2015174530A1 (ja) * 2014-05-15 2015-11-19 新日鐵住金株式会社 熱間成形鋼板部材
JP6572876B2 (ja) * 2016-12-06 2019-09-11 Ｊｆｅスチール株式会社 低降伏比高張力厚鋼板およびその製造方法
KR102031451B1 (ko) * 2017-12-24 2019-10-11 주식회사 포스코 저온인성이 우수한 저항복비 고강도 강관용 강재 및 그 제조방법
JP6988836B2 (ja) * 2019-01-28 2022-01-05 Ｊｆｅスチール株式会社 超低降伏比高張力厚鋼板およびその製造方法
JP7260780B2 (ja) * 2019-06-17 2023-04-19 日本製鉄株式会社 大入熱溶接用高強度鋼板
JP7533408B2 (ja) * 2021-09-21 2024-08-14 Ｊｆｅスチール株式会社 鋼板およびその製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004300567A (ja) * 2003-03-19 2004-10-28 Kobe Steel Ltd 高張力鋼板およびその製造方法
JP2015190008A (ja) * 2014-03-28 2015-11-02 Ｊｆｅスチール株式会社 溶接熱影響部靭性に優れた非調質低降伏比高張力厚鋼板およびその製造方法
WO2017017961A1 (ja) * 2015-07-29 2017-02-02 Ｊｆｅスチール株式会社 冷延鋼板、めっき鋼板及びこれらの製造方法
EP3438311A1 (de) * 2016-03-31 2019-02-06 JFE Steel Corporation Dünnes stahlblech, verzinktes stahlblech, verfahren zur herstellung von warmgewalztem stahlblech, verfahren zur herstellung von kaltgewalztem vollhartem stahlblech, verfahren zur herstellung von wärmebehandeltem blech, verfahren zur herstellung von dünnem stahlblech und verfahren zur herstellung von verzinktem stahlblech

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2024038684A1 *

Also Published As

Publication number Publication date
KR20250011693A (ko) 2025-01-21
JPWO2024038684A1 (de) 2024-02-22
EP4575008A1 (de) 2025-06-25
TWI857697B (zh) 2024-10-01
WO2024038612A1 (ja) 2024-02-22
WO2024038684A1 (ja) 2024-02-22
TW202411438A (zh) 2024-03-16
JP7444343B1 (ja) 2024-03-06
CN119731360A (zh) 2025-03-28

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Ipc: C22C 38/42 20060101ALI20251027BHEP

Ipc: C22C 38/20 20060101ALI20251027BHEP

Ipc: C22C 38/22 20060101ALI20251027BHEP

Ipc: C22C 38/38 20060101ALI20251027BHEP

Ipc: C22C 38/32 20060101ALI20251027BHEP

Ipc: C22C 38/00 20060101ALI20251027BHEP

Ipc: C22C 38/08 20060101ALI20251027BHEP

Ipc: C22C 38/04 20060101ALI20251027BHEP

Ipc: C22C 38/14 20060101ALI20251027BHEP

Ipc: C21D 1/19 20060101ALI20251027BHEP

Ipc: C22C 38/02 20060101ALI20251027BHEP

Ipc: C21D 1/60 20060101ALI20251027BHEP

Ipc: C21D 9/46 20060101ALI20251027BHEP

Ipc: C22C 38/58 20060101ALI20251027BHEP

Ipc: C21D 1/78 20060101ALI20251027BHEP