KR20240010004A - 용철의 탈인 방법 - Google Patents

용철의 탈인 방법 Download PDF

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Publication number
KR20240010004A
KR20240010004A KR1020237043468A KR20237043468A KR20240010004A KR 20240010004 A KR20240010004 A KR 20240010004A KR 1020237043468 A KR1020237043468 A KR 1020237043468A KR 20237043468 A KR20237043468 A KR 20237043468A KR 20240010004 A KR20240010004 A KR 20240010004A
Authority
KR
South Korea
Prior art keywords
molten iron
iron
dephosphorization
slag
mass
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
KR1020237043468A
Other languages
English (en)
Korean (ko)
Inventor
후토시 오가사와라
료 가와바타
Original Assignee
제이에프이 스틸 가부시키가이샤
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 제이에프이 스틸 가부시키가이샤 filed Critical 제이에프이 스틸 가부시키가이샤
Publication of KR20240010004A publication Critical patent/KR20240010004A/ko
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/064—Dephosphorising; Desulfurising
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising
    • C21C1/025—Agents used for dephosphorising or desulfurising
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/527—Charging of the electric furnace
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/54—Processes yielding slags of special composition
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/068—Decarburising
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/072—Treatment with gases
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/10—Handling in a vacuum
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C2300/00—Process aspects
    • C21C2300/08—Particular sequence of the process steps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
KR1020237043468A 2021-05-26 2022-04-19 용철의 탈인 방법 Pending KR20240010004A (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JPJP-P-2021-088400 2021-05-26
JP2021088400 2021-05-26
PCT/JP2022/018163 WO2022249797A1 (ja) 2021-05-26 2022-04-19 溶鉄の脱りん方法

Publications (1)

Publication Number Publication Date
KR20240010004A true KR20240010004A (ko) 2024-01-23

Family

ID=84229949

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020237043468A Pending KR20240010004A (ko) 2021-05-26 2022-04-19 용철의 탈인 방법

Country Status (8)

Country Link
US (1) US20240229177A1 (https=)
EP (1) EP4324940A4 (https=)
JP (1) JP7302749B2 (https=)
KR (1) KR20240010004A (https=)
CN (1) CN117396614A (https=)
BR (1) BR112023024387A2 (https=)
TW (1) TWI823400B (https=)
WO (1) WO2022249797A1 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2026014527A1 (ja) * 2024-07-12 2026-01-15 Ｊｆｅスチール株式会社 溶鉄の脱りん方法
WO2026014528A1 (ja) * 2024-07-12 2026-01-15 Ｊｆｅスチール株式会社 溶鉄の脱りん方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61291913A (ja) 1985-06-20 1986-12-22 Nippon Kokan Kk <Nkk> 溶鋼の脱燐方法
JPH08225880A (ja) 1995-01-16 1996-09-03 Kct Technol Gmbh 合金鋼の製造方法および合金鋼の製造プラント
JP2005089839A (ja) 2003-09-18 2005-04-07 Jfe Steel Kk 溶鋼の溶製方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56216A (en) * 1979-06-16 1981-01-06 Chobe Taguchi Dephosphoration of iron steel
EP0104841B1 (en) * 1982-09-23 1986-07-30 National Research Development Corporation Removing phosphorous from iron
JP3671769B2 (ja) * 1999-09-30 2005-07-13 住友金属工業株式会社 精錬時のスラグフォーミングの抑制方法
BR0213573B1 (pt) * 2002-08-27 2013-11-12 Método para produção de ferro fundido com baixo teor de fósforo
CN108950131B (zh) * 2018-07-10 2020-04-28 娄永琰 一种h13模具钢的冶炼及还原脱磷方法
CN111748673B (zh) * 2020-06-02 2021-06-11 北京科技大学 一种电弧炉炼钢用多功能氢氧烧嘴及供能控制方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61291913A (ja) 1985-06-20 1986-12-22 Nippon Kokan Kk <Nkk> 溶鋼の脱燐方法
JPH08225880A (ja) 1995-01-16 1996-09-03 Kct Technol Gmbh 合金鋼の製造方法および合金鋼の製造プラント
JP2005089839A (ja) 2003-09-18 2005-04-07 Jfe Steel Kk 溶鋼の溶製方法

Also Published As

Publication number Publication date
JP7302749B2 (ja) 2023-07-04
TWI823400B (zh) 2023-11-21
BR112023024387A2 (pt) 2024-02-15
US20240229177A1 (en) 2024-07-11
EP4324940A4 (en) 2024-11-20
JPWO2022249797A1 (https=) 2022-12-01
CN117396614A (zh) 2024-01-12
TW202246531A (zh) 2022-12-01
EP4324940A1 (en) 2024-02-21
WO2022249797A1 (ja) 2022-12-01

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