BE797642A - Refining pig iron - by injecting oxidant gas under the metal surface - Google Patents

Refining pig iron - by injecting oxidant gas under the metal surface

Info

Publication number
BE797642A
BE797642A BE6044084A BE6044084A BE797642A BE 797642 A BE797642 A BE 797642A BE 6044084 A BE6044084 A BE 6044084A BE 6044084 A BE6044084 A BE 6044084A BE 797642 A BE797642 A BE 797642A
Authority
BE
Belgium
Prior art keywords
metal surface
oxidant gas
gas under
pig iron
oxygen
Prior art date
Application number
BE6044084A
Other languages
French (fr)
Original Assignee
Centre Rech Metallurgique
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 Centre Rech Metallurgique filed Critical Centre Rech Metallurgique
Priority to BE6044084A priority Critical patent/BE797642A/en
Publication of BE797642A publication Critical patent/BE797642A/en

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
    • 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
    • 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
    • C21C5/34—Blowing through the bath

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Abstract

Gas is injected through the tuyeres in the base or side walls of the converter, at least 85 (90-95)% of the total oxygen is blown in during a first phase, the converter is turned off and the activity and temp. of the oxygen in the bath is measured almost instantaneously by an appropriate ultra-rapid detector, and without delay, by means of appropriate tables, the Fe content of the slag and in the metal phosphide is determined, and from these two values and by any known method, which takes account of the data resulting from the measure effected while turned off, and from the final result, there are determined the quantities of slag formers, e.g. FeSi, and the quantity of oxygen remaining to be blown in a second phase, necessary to obtain, at the end of the refining, steel and slage of desired temp. and compsn.
BE6044084A 1973-03-30 1973-03-30 Refining pig iron - by injecting oxidant gas under the metal surface BE797642A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BE6044084A BE797642A (en) 1973-03-30 1973-03-30 Refining pig iron - by injecting oxidant gas under the metal surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE6044084A BE797642A (en) 1973-03-30 1973-03-30 Refining pig iron - by injecting oxidant gas under the metal surface

Publications (1)

Publication Number Publication Date
BE797642A true BE797642A (en) 1973-07-16

Family

ID=3874419

Family Applications (1)

Application Number Title Priority Date Filing Date
BE6044084A BE797642A (en) 1973-03-30 1973-03-30 Refining pig iron - by injecting oxidant gas under the metal surface

Country Status (1)

Country Link
BE (1) BE797642A (en)

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