GB669922A - Improvements relating to the manufacture of steel - Google Patents

Improvements relating to the manufacture of steel

Info

Publication number
GB669922A
GB669922A GB14304/49A GB1430449A GB669922A GB 669922 A GB669922 A GB 669922A GB 14304/49 A GB14304/49 A GB 14304/49A GB 1430449 A GB1430449 A GB 1430449A GB 669922 A GB669922 A GB 669922A
Authority
GB
United Kingdom
Prior art keywords
steel
aluminium
bessemer
manufacture
kgs
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
GB14304/49A
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.)
HUETTENWERKE RUHRORT MEIDERICH
Original Assignee
HUETTENWERKE RUHRORT MEIDERICH
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 HUETTENWERKE RUHRORT MEIDERICH filed Critical HUETTENWERKE RUHRORT MEIDERICH
Publication of GB669922A publication Critical patent/GB669922A/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
    • C21C5/04—Manufacture of hearth-furnace steel, e.g. Siemens-Martin steel

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

In a process for the manufacture of steel there is added to Siemens-Martin steel, steel made by the converter process which, after conversion has been treated outside the converter with silicon and/ or aluminium under a reducing slag. Basic Bessemer steel of which the phosphorus and nitrogen contents have been reduced or acid Bessemer steel which has been dephosphorized may be used. The Bessemer metal may be poured into a first ladle and from this into a second ladle in as large a stream as possible at the same time additions of ferrosilicon and/or aluminium are made under a white slag of finely ground lime and fluorspar. 75-5000 kgs of 90 per cent ferrosilicon and 100-500 kgs of aluminium may be added per 100 tons of steel. The mixed steel produced is stated to be superior to Siemens-Martin steel of the same composition.
GB14304/49A 1949-03-11 1949-05-27 Improvements relating to the manufacture of steel Expired GB669922A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE669922X 1949-03-11

Publications (1)

Publication Number Publication Date
GB669922A true GB669922A (en) 1952-04-09

Family

ID=6590290

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14304/49A Expired GB669922A (en) 1949-03-11 1949-05-27 Improvements relating to the manufacture of steel

Country Status (1)

Country Link
GB (1) GB669922A (en)

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