JPS5227009A - Production process of a1-si killed steel of high purity - Google Patents

Production process of a1-si killed steel of high purity

Info

Publication number
JPS5227009A
JPS5227009A JP10363975A JP10363975A JPS5227009A JP S5227009 A JPS5227009 A JP S5227009A JP 10363975 A JP10363975 A JP 10363975A JP 10363975 A JP10363975 A JP 10363975A JP S5227009 A JPS5227009 A JP S5227009A
Authority
JP
Japan
Prior art keywords
production process
high purity
killed steel
molten steel
metallic inclusions
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
JP10363975A
Other languages
Japanese (ja)
Inventor
Mitsuhiko Nishimura
Shunsuke Koike
Teruji Yamazaki
Toshinori Takahashi
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
Priority to JP10363975A priority Critical patent/JPS5227009A/en
Publication of JPS5227009A publication Critical patent/JPS5227009A/en
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
    • C21C7/072—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
    • 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
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4653—Tapholes; Opening or plugging thereof

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)

Abstract

PURPOSE:The above-mentioned process for promoting the separation by floating up the non-metallic inclusions suspending in the molten steel by stirring the molten steel and for removing the non-metallic inclusions floated up by collecting with non-oxidizing slag.
JP10363975A 1975-08-27 1975-08-27 Production process of a1-si killed steel of high purity Pending JPS5227009A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10363975A JPS5227009A (en) 1975-08-27 1975-08-27 Production process of a1-si killed steel of high purity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10363975A JPS5227009A (en) 1975-08-27 1975-08-27 Production process of a1-si killed steel of high purity

Publications (1)

Publication Number Publication Date
JPS5227009A true JPS5227009A (en) 1977-03-01

Family

ID=14359326

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10363975A Pending JPS5227009A (en) 1975-08-27 1975-08-27 Production process of a1-si killed steel of high purity

Country Status (1)

Country Link
JP (1) JPS5227009A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2606689A1 (en) * 1986-11-13 1988-05-20 Daussan & Co SCORING RETAINER CAP AND METHOD FOR ITS IMPLEMENTATION AND MANUFACTURE
CN102747185A (en) * 2012-06-27 2012-10-24 莱芜钢铁集团有限公司 Slag stopper for converter tapping

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5130522A (en) * 1974-09-09 1976-03-15 Nippon Steel Corp Koseijoko no seizohoho

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5130522A (en) * 1974-09-09 1976-03-15 Nippon Steel Corp Koseijoko no seizohoho

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2606689A1 (en) * 1986-11-13 1988-05-20 Daussan & Co SCORING RETAINER CAP AND METHOD FOR ITS IMPLEMENTATION AND MANUFACTURE
CN102747185A (en) * 2012-06-27 2012-10-24 莱芜钢铁集团有限公司 Slag stopper for converter tapping

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