GB891839A - Improvements in or relating to the de-oxidation of steel - Google Patents

Improvements in or relating to the de-oxidation of steel

Info

Publication number
GB891839A
GB891839A GB33878/60A GB3387860A GB891839A GB 891839 A GB891839 A GB 891839A GB 33878/60 A GB33878/60 A GB 33878/60A GB 3387860 A GB3387860 A GB 3387860A GB 891839 A GB891839 A GB 891839A
Authority
GB
United Kingdom
Prior art keywords
steel
melt
oxidation
relating
fluorspar
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.)
Expired
Application number
GB33878/60A
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.)
Hoesch AG
Original Assignee
Hoesch AG
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 Hoesch AG filed Critical Hoesch AG
Publication of GB891839A publication Critical patent/GB891839A/en
Expired 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
    • C21C7/06—Deoxidising, e.g. killing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

Electric furnace steel is deoxidised by the addition to the furnace melt of a mixture of calcium carbide, fluorspar and ferro-silicon at the instant when the second or white slag is formed. The addition mixture consists of 70%-85% calcium carbide, 15%-7% of 75% ferro-silicon and 15%-8% fluorspar and is added to the melt in the proportion of 0,8% to 1,2% by weight of the melt.
GB33878/60A 1959-10-21 1960-10-03 Improvements in or relating to the de-oxidation of steel Expired GB891839A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE891839X 1959-10-21

Publications (1)

Publication Number Publication Date
GB891839A true GB891839A (en) 1962-03-21

Family

ID=6846050

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33878/60A Expired GB891839A (en) 1959-10-21 1960-10-03 Improvements in or relating to the de-oxidation of steel

Country Status (1)

Country Link
GB (1) GB891839A (en)

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