EP4556138A4 - Cast steel slab, continuous casting process and process for producing cast steel slabs - Google Patents

Cast steel slab, continuous casting process and process for producing cast steel slabs

Info

Publication number
EP4556138A4
EP4556138A4 EP23862819.2A EP23862819A EP4556138A4 EP 4556138 A4 EP4556138 A4 EP 4556138A4 EP 23862819 A EP23862819 A EP 23862819A EP 4556138 A4 EP4556138 A4 EP 4556138A4
Authority
EP
European Patent Office
Prior art keywords
steel cast
cast granules
manufacturing
continuous casting
granules
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
EP23862819.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP4556138A1 (en
Inventor
Yoichi Ito
Kazuki NISHINAKA
Norichika Aramaki
Yuya Sato
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 EP4556138A1 publication Critical patent/EP4556138A1/en
Publication of EP4556138A4 publication Critical patent/EP4556138A4/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B22D11/108—Feeding additives, powders, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • 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
    • C21D6/001—Heat treatment of ferrous alloys containing Ni
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
    • 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
    • C22C38/02—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
    • C22C38/18—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
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron

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)
  • Continuous Casting (AREA)
  • Heat Treatment Of Steel (AREA)
EP23862819.2A 2022-09-09 2023-07-28 Cast steel slab, continuous casting process and process for producing cast steel slabs Pending EP4556138A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022143845 2022-09-09
PCT/JP2023/027675 WO2024053276A1 (ja) 2022-09-09 2023-07-28 鋼鋳片、連続鋳造方法及び、鋼鋳片の製造方法

Publications (2)

Publication Number Publication Date
EP4556138A1 EP4556138A1 (en) 2025-05-21
EP4556138A4 true EP4556138A4 (en) 2025-11-19

Family

ID=90192366

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23862819.2A Pending EP4556138A4 (en) 2022-09-09 2023-07-28 Cast steel slab, continuous casting process and process for producing cast steel slabs

Country Status (6)

Country Link
EP (1) EP4556138A4 (https=)
JP (1) JP7563626B2 (https=)
KR (1) KR20250044342A (https=)
CN (1) CN119789921A (https=)
TW (1) TWI856765B (https=)
WO (1) WO2024053276A1 (https=)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001081516A (ja) * 1999-09-17 2001-03-27 Nkk Corp 表面性状に優れたＮｉ含有鋼の熱間圧延方法
JP2009248099A (ja) * 2008-04-02 2009-10-29 Jfe Steel Corp Ｎｉ含有鋼鋳片及びＮｉ含有鋼の連続鋳造方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS608134B2 (ja) * 1980-07-23 1985-03-01 日本鋼管株式会社 含Ｎｉ低温用鋼の連続鋳造における表面疵防止方法
JPH01228644A (ja) * 1988-03-09 1989-09-12 Nippon Steel Corp 含Ｎｉ鋼の連続鋳造における表面割れ防止方法
JPH0768577B2 (ja) * 1989-03-24 1995-07-26 新日本製鐵株式会社 低温靭性の優れた大入熱溶接用鋼の製造方法
JP3215573B2 (ja) * 1994-06-27 2001-10-09 川崎製鉄株式会社 含ニッケル鋼の連続鋳造方法
JP3018911B2 (ja) 1994-07-20 2000-03-13 日本鋼管株式会社 高Ｎｉ鋼の連続鋳造方法
JP4586648B2 (ja) * 2005-06-28 2010-11-24 住友金属工業株式会社 加工性に優れた鋼板およびその製造方法
WO2018055799A1 (ja) * 2016-09-21 2018-03-29 Ｊｆｅスチール株式会社 鋼の連続鋳造方法
JP7032600B1 (ja) * 2021-09-01 2022-03-08 日本冶金工業株式会社 Ｆｅ－Ｎｉ系合金またはＮｉ基合金に用いる連続鋳造用モールドパウダーおよび連続鋳造方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001081516A (ja) * 1999-09-17 2001-03-27 Nkk Corp 表面性状に優れたＮｉ含有鋼の熱間圧延方法
JP2009248099A (ja) * 2008-04-02 2009-10-29 Jfe Steel Corp Ｎｉ含有鋼鋳片及びＮｉ含有鋼の連続鋳造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2024053276A1 *

Also Published As

Publication number Publication date
EP4556138A1 (en) 2025-05-21
TW202413666A (zh) 2024-04-01
KR20250044342A (ko) 2025-03-31
JPWO2024053276A1 (https=) 2024-03-14
WO2024053276A1 (ja) 2024-03-14
JP7563626B2 (ja) 2024-10-08
TWI856765B (zh) 2024-09-21
CN119789921A (zh) 2025-04-08

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Ipc: B22D 11/16 20060101ALI20251015BHEP

Ipc: C21D 8/02 20060101ALI20251015BHEP

Ipc: C21D 9/00 20060101ALI20251015BHEP

Ipc: C22C 38/00 20060101ALI20251015BHEP

Ipc: C22C 38/08 20060101ALI20251015BHEP

Ipc: C22C 38/54 20060101ALI20251015BHEP

Ipc: C22C 38/02 20060101ALI20251015BHEP

Ipc: C22C 38/06 20060101ALI20251015BHEP

Ipc: C22C 38/42 20060101ALI20251015BHEP

Ipc: C22C 38/44 20060101ALI20251015BHEP

Ipc: C22C 38/46 20060101ALI20251015BHEP

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