KR20230162108A - 용철의 정련 방법 - Google Patents

용철의 정련 방법 Download PDF

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Publication number
KR20230162108A
KR20230162108A KR1020237037654A KR20237037654A KR20230162108A KR 20230162108 A KR20230162108 A KR 20230162108A KR 1020237037654 A KR1020237037654 A KR 1020237037654A KR 20237037654 A KR20237037654 A KR 20237037654A KR 20230162108 A KR20230162108 A KR 20230162108A
Authority
KR
South Korea
Prior art keywords
molten iron
iron
mass
treatment
gas
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
KR1020237037654A
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 KR20230162108A publication Critical patent/KR20230162108A/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
    • C21C7/068—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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/04—Removing impurities other than carbon, phosphorus or sulfur
    • 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
    • C21C5/28—Manufacture of steel in the converter
    • 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
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/35—Blowing from above and through the bath
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
KR1020237037654A 2021-05-26 2022-04-19 용철의 정련 방법 Pending KR20230162108A (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2021088031 2021-05-26
JPJP-P-2021-088031 2021-05-26
PCT/JP2022/018168 WO2022249798A1 (ja) 2021-05-26 2022-04-19 溶鉄の精錬方法

Publications (1)

Publication Number Publication Date
KR20230162108A true KR20230162108A (ko) 2023-11-28

Family

ID=84229902

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020237037654A Pending KR20230162108A (ko) 2021-05-26 2022-04-19 용철의 정련 방법

Country Status (8)

Country Link
US (1) US20240271233A1 (enrdf_load_stackoverflow)
EP (1) EP4328330A4 (enrdf_load_stackoverflow)
JP (1) JP7384294B2 (enrdf_load_stackoverflow)
KR (1) KR20230162108A (enrdf_load_stackoverflow)
CN (1) CN117377781A (enrdf_load_stackoverflow)
BR (1) BR112023024464A2 (enrdf_load_stackoverflow)
TW (1) TWI817507B (enrdf_load_stackoverflow)
WO (1) WO2022249798A1 (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102840642B1 (ko) * 2023-10-04 2025-07-31 현대제철 주식회사 냉연강판 및 그 제조방법

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000045013A (ja) 1998-07-29 2000-02-15 Sumitomo Metal Ind Ltd Ｒｈ真空精錬方法
JP2004211120A (ja) 2002-12-27 2004-07-29 Jfe Steel Kk 高清浄鋼の溶製方法
JP2007211298A (ja) 2006-02-09 2007-08-23 Jfe Steel Kk 溶鋼の脱窒方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2007373B2 (de) * 1970-02-18 1973-05-03 Eisenwerk-Gesellschaft Maximilianshütte mbH, 8458 Sulzbach-Rosenberg Verfahren und konverter zum herstellen ferritischer chromstaehle
US3754894A (en) * 1972-04-20 1973-08-28 Joslyn Mfg & Supply Co Nitrogen control in argon oxygen refining of molten metal
JPS58147509A (ja) * 1982-02-26 1983-09-02 Kawasaki Steel Corp ステンレス鋼の溶製方法
JPS5925916A (ja) * 1982-08-02 1984-02-10 Kawasaki Steel Corp 含クロム合金銑の精錬方法
JPS60194009A (ja) * 1984-03-14 1985-10-02 Kawasaki Steel Corp ステンレス鋼の溶製方法
JPS61223117A (ja) * 1985-03-29 1986-10-03 Kawasaki Steel Corp 溶融スラグ内金属酸化物の還元回収方法
JP3309395B2 (ja) * 1990-12-25 2002-07-29 住友金属工業株式会社 転炉精錬方法
JP2754983B2 (ja) * 1991-09-26 1998-05-20 住友金属工業株式会社 転炉精錬方法
JP5428447B2 (ja) * 2008-03-31 2014-02-26 Ｊｆｅスチール株式会社 Ｒｈ真空脱ガス装置における溶鋼の精錬方法
JP5526565B2 (ja) * 2009-03-09 2014-06-18 Ｊｆｅスチール株式会社 転炉製鋼法
JP5589688B2 (ja) * 2009-09-10 2014-09-17 Ｊｆｅスチール株式会社 溶銑の製造方法
JP5910579B2 (ja) * 2013-08-01 2016-04-27 Ｊｆｅスチール株式会社 極低窒素純鉄の溶製方法
CN109852766B (zh) * 2018-12-05 2020-11-03 敬业钢铁有限公司 一种rh炉精炼氢氧控制工艺
CN111270036A (zh) * 2020-04-05 2020-06-12 上海泰普星坦新材料有限公司 一种氢能直接还原生产海绵铁的系统和工艺方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000045013A (ja) 1998-07-29 2000-02-15 Sumitomo Metal Ind Ltd Ｒｈ真空精錬方法
JP2004211120A (ja) 2002-12-27 2004-07-29 Jfe Steel Kk 高清浄鋼の溶製方法
JP2007211298A (ja) 2006-02-09 2007-08-23 Jfe Steel Kk 溶鋼の脱窒方法

Also Published As

Publication number Publication date
WO2022249798A1 (ja) 2022-12-01
CN117377781A (zh) 2024-01-09
EP4328330A4 (en) 2024-10-30
JPWO2022249798A1 (enrdf_load_stackoverflow) 2022-12-01
BR112023024464A2 (pt) 2024-02-06
TWI817507B (zh) 2023-10-01
TW202246528A (zh) 2022-12-01
US20240271233A1 (en) 2024-08-15
JP7384294B2 (ja) 2023-11-21
EP4328330A1 (en) 2024-02-28

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Legal Events

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PA0105 International application

Patent event date: 20231031

Patent event code: PA01051R01D

Comment text: International Patent Application

PA0201 Request for examination
PG1501 Laying open of application
E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

Comment text: Notification of reason for refusal

Patent event date: 20250702

Patent event code: PE09021S01D