GB705954A - Process for the manufacture of steel poor in nitrogen by the converter process - Google Patents

Process for the manufacture of steel poor in nitrogen by the converter process

Info

Publication number
GB705954A
GB705954A GB23725/51A GB2372551A GB705954A GB 705954 A GB705954 A GB 705954A GB 23725/51 A GB23725/51 A GB 23725/51A GB 2372551 A GB2372551 A GB 2372551A GB 705954 A GB705954 A GB 705954A
Authority
GB
United Kingdom
Prior art keywords
converter
manufacture
oxygen
blast
per cent
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
GB23725/51A
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 Oberhausen AG
Original Assignee
Huettenwerk Oberhausen 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 Oberhausen AG filed Critical Huettenwerk Oberhausen AG
Publication of GB705954A publication Critical patent/GB705954A/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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/04—Removing impurities other than carbon, phosphorus or sulfur

Landscapes

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

Abstract

In a process for the manufacture of low-nitrogen steel, molten pig iron from the blast-furnace is blown with a blast of oxygen, or containing more oxygen than does air, to reduce the silicon content and produce an acid slag before being charged into the converter. The silicon content is preferably reduced from above 0.5 per cent. to below 0.35 per cent. or even to below 0.20 per cent. in the pre-treatment, and an oxygen-enriched blast may also be used in the converter. The pretreatment may take place in an auxiliary converter without the addition of slag-forming materials.
GB23725/51A 1950-10-14 1951-10-11 Process for the manufacture of steel poor in nitrogen by the converter process Expired GB705954A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE705954X 1950-10-14

Publications (1)

Publication Number Publication Date
GB705954A true GB705954A (en) 1954-03-24

Family

ID=6617040

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23725/51A Expired GB705954A (en) 1950-10-14 1951-10-11 Process for the manufacture of steel poor in nitrogen by the converter process

Country Status (1)

Country Link
GB (1) GB705954A (en)

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