GB777381A - Improvements in and relating to the conversion of pig iron - Google Patents

Improvements in and relating to the conversion of pig iron

Info

Publication number
GB777381A
GB777381A GB2895/55A GB289555A GB777381A GB 777381 A GB777381 A GB 777381A GB 2895/55 A GB2895/55 A GB 2895/55A GB 289555 A GB289555 A GB 289555A GB 777381 A GB777381 A GB 777381A
Authority
GB
United Kingdom
Prior art keywords
mixture
oxygen
per cent
carbon
blowing
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
GB2895/55A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB777381A publication Critical patent/GB777381A/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
    • 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

A process for converting pig-iron to steel by blowing with an oxidising gas containing at least 30 per cent oxygen comprises preheating the blowing mixture, during at least part of the process after the carbon has been reduced to at least 1.5 per cent, to such a temperature that the weight of reactive oxygen passing through each tuyere per minute does not exceed 1 kg when the mixture is oxygen-enriched air or 1.4 kg. when the mixture contains oxygen and carbon monoxide. The mixture, or one or its constituents may be heated before or after the blower and the heated mixture may be used before the carbon has been reduced to 1.5 per cent. The method of calculating the temperature required under different conditions is given.
GB2895/55A 1954-04-14 1955-01-31 Improvements in and relating to the conversion of pig iron Expired GB777381A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU777381X 1954-04-14

Publications (1)

Publication Number Publication Date
GB777381A true GB777381A (en) 1957-06-19

Family

ID=19733486

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2895/55A Expired GB777381A (en) 1954-04-14 1955-01-31 Improvements in and relating to the conversion of pig iron

Country Status (1)

Country Link
GB (1) GB777381A (en)

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