GB695238A - Process for production of converter steel with low nitrogen content - Google Patents

Process for production of converter steel with low nitrogen content

Info

Publication number
GB695238A
GB695238A GB12082/51A GB1208251A GB695238A GB 695238 A GB695238 A GB 695238A GB 12082/51 A GB12082/51 A GB 12082/51A GB 1208251 A GB1208251 A GB 1208251A GB 695238 A GB695238 A GB 695238A
Authority
GB
United Kingdom
Prior art keywords
converter
oxygen
production
blow
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
GB12082/51A
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.)
Thyssen AG
Eisenwerke Gesellschaf Maximilianshuette mbH
Original Assignee
Eisenwerke Gesellschaf Maximilianshuette mbH
August Thyssen Huette 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 Eisenwerke Gesellschaf Maximilianshuette mbH, August Thyssen Huette AG filed Critical Eisenwerke Gesellschaf Maximilianshuette mbH
Publication of GB695238A publication Critical patent/GB695238A/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)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

In a process for the production of steel of low nitrogen content (0.004-0.008 per cent) in a converter of the Bessemer or similar type with blow-holes at the bottom, blowing takes place with the converter inclined, but not raised by more than 30 degrees above the lowest position of complete blow-hole submersion, part at least of the blowing being effected with oxygen-enriched air, the available oxygen, including that released from oxygen-containing materials such as ores or limestone during this period, being at least 30 per cent and preferably less than 60 per cent by volume of the blast. The oxygen is preferably employed for the last 1-3 minutes of the decarburizing period, and the converter has blow-holes of preferably 20-30 mm. in diameter some of which, if it is a Bessemer converter, may be blocked up. Specification 601,028 is referred to.
GB12082/51A 1948-10-01 1951-05-23 Process for production of converter steel with low nitrogen content Expired GB695238A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE695238X 1948-10-01

Publications (1)

Publication Number Publication Date
GB695238A true GB695238A (en) 1953-08-05

Family

ID=6607411

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12082/51A Expired GB695238A (en) 1948-10-01 1951-05-23 Process for production of converter steel with low nitrogen content

Country Status (1)

Country Link
GB (1) GB695238A (en)

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