GB713246A - Process for the production of a steel with fixed nitrogen content - Google Patents

Process for the production of a steel with fixed nitrogen content

Info

Publication number
GB713246A
GB713246A GB1405250A GB1405250A GB713246A GB 713246 A GB713246 A GB 713246A GB 1405250 A GB1405250 A GB 1405250A GB 1405250 A GB1405250 A GB 1405250A GB 713246 A GB713246 A GB 713246A
Authority
GB
United Kingdom
Prior art keywords
oxygen
per cent
mixture
steel
nitrogen
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
GB1405250A
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 GB1405250A priority Critical patent/GB713246A/en
Publication of GB713246A publication Critical patent/GB713246A/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 the manufacture of steel having 0.003 to 0.01 per cent. nitrogen in an acid converter from an iron containing more than 0.2 per cent. silicon, or in a basic converter from an iron containing more than 0.6 per cent. phosphorus, comprises blowing the iron with a mixture of steam and an oxygen-containing gas composed essentially of oxygen and nitrogen, the steam content of the mixture being between 14.3 per cent. and 66.66 per cent. and the oxygen-containing gas having an oxygen content of 50-94 per cent. In the acid process the blowing may commence with air or oxygen-enriched air and change to the steam-oxygen-nitrogen mixture in the middle of the decarburization, and in the basic process the change may be made at the beginning of the dephosphorization. The mixture may, however, be used throughout the whole blow.
GB1405250A 1950-06-06 1950-06-06 Process for the production of a steel with fixed nitrogen content Expired GB713246A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1405250A GB713246A (en) 1950-06-06 1950-06-06 Process for the production of a steel with fixed nitrogen content

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1405250A GB713246A (en) 1950-06-06 1950-06-06 Process for the production of a steel with fixed nitrogen content

Publications (1)

Publication Number Publication Date
GB713246A true GB713246A (en) 1954-08-11

Family

ID=10034113

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1405250A Expired GB713246A (en) 1950-06-06 1950-06-06 Process for the production of a steel with fixed nitrogen content

Country Status (1)

Country Link
GB (1) GB713246A (en)

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