GB717975A - Improvements in or relating to processes for the production of thomas steel - Google Patents

Improvements in or relating to processes for the production of thomas steel

Info

Publication number
GB717975A
GB717975A GB840052A GB840052A GB717975A GB 717975 A GB717975 A GB 717975A GB 840052 A GB840052 A GB 840052A GB 840052 A GB840052 A GB 840052A GB 717975 A GB717975 A GB 717975A
Authority
GB
United Kingdom
Prior art keywords
oxygen
per cent
bath
foreblow
soda
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
GB840052A
Inventor
Hans Kosmider
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.)
Huettenwerk Haspe AG
Original Assignee
Huettenwerk Haspe 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 Huettenwerk Haspe AG filed Critical Huettenwerk Haspe AG
Priority to GB840052A priority Critical patent/GB717975A/en
Publication of GB717975A publication Critical patent/GB717975A/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
    • 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

Landscapes

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

Abstract

Crude Thomas iron having more than 1 per cent. of phosphorus and more than 3 per cent. of carbon is blown with an oxygen-enriched blast containing 30-55 per cent. oxygen by volume under a soda, soda-lime, or lime slag and at a time corresponding to 40-70 per cent. of the foreblow from the beginning of the foreblow there is effected an additional supply of oxygen. The additional supply of oxygen may be obtained from ore, water vapour, or gaseous oxygen; in the latter case cooling additions are necessary to prevent rise in temperature of the bath. The amount of oxygen added will depend on the nitrogen required in the final bath but a usual amount is 12-13 cubic metres per metric ton of metal. A final addition of solid pig iron, hot or cold, or liquid pig iron may be made to deoxidize the bath.
GB840052A 1952-04-02 1952-04-02 Improvements in or relating to processes for the production of thomas steel Expired GB717975A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB840052A GB717975A (en) 1952-04-02 1952-04-02 Improvements in or relating to processes for the production of thomas steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB840052A GB717975A (en) 1952-04-02 1952-04-02 Improvements in or relating to processes for the production of thomas steel

Publications (1)

Publication Number Publication Date
GB717975A true GB717975A (en) 1954-11-03

Family

ID=9851818

Family Applications (1)

Application Number Title Priority Date Filing Date
GB840052A Expired GB717975A (en) 1952-04-02 1952-04-02 Improvements in or relating to processes for the production of thomas steel

Country Status (1)

Country Link
GB (1) GB717975A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2863756A (en) * 1956-10-22 1958-12-09 Huettenwerk Haspe A G Process for the production of highgrade thomas steel
US2893861A (en) * 1957-05-10 1959-07-07 Bot Brassert Oxygen Technik A Method of refining crude iron

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2863756A (en) * 1956-10-22 1958-12-09 Huettenwerk Haspe A G Process for the production of highgrade thomas steel
US2893861A (en) * 1957-05-10 1959-07-07 Bot Brassert Oxygen Technik A Method of refining crude iron

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