GB787098A - An improved method for the introduction of fine substances into baths of molten steel - Google Patents

An improved method for the introduction of fine substances into baths of molten steel

Info

Publication number
GB787098A
GB787098A GB26894/55A GB2689455A GB787098A GB 787098 A GB787098 A GB 787098A GB 26894/55 A GB26894/55 A GB 26894/55A GB 2689455 A GB2689455 A GB 2689455A GB 787098 A GB787098 A GB 787098A
Authority
GB
United Kingdom
Prior art keywords
molten steel
baths
introduction
improved method
blown
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
GB26894/55A
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.)
Rheinische Kalksteinwerke GmbH
Original Assignee
Rheinische Kalksteinwerke GmbH
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 Rheinische Kalksteinwerke GmbH filed Critical Rheinische Kalksteinwerke GmbH
Publication of GB787098A publication Critical patent/GB787098A/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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/064—Dephosphorising; Desulfurising
    • 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
    • C21C1/02—Dephosphorising or desulfurising
    • 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
    • C21C5/32—Blowing from above
    • 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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0037—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by injecting powdered material

Landscapes

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

Abstract

Lime or hydrated lime in the form of a dust or powder is blown into or on to the surface of a molten steel bath by means of an oxidizing gas blown through a lance. All the lime may be supplied through the lance or two parts thereof may be blown in and one part added in lump form. The gas used may be oxygen or carbon dioxide and it may also carry iron oxides or slag forming materials.
GB26894/55A 1954-09-30 1955-09-20 An improved method for the introduction of fine substances into baths of molten steel Expired GB787098A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE787098X 1954-09-30

Publications (1)

Publication Number Publication Date
GB787098A true GB787098A (en) 1957-12-04

Family

ID=6699172

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26894/55A Expired GB787098A (en) 1954-09-30 1955-09-20 An improved method for the introduction of fine substances into baths of molten steel

Country Status (1)

Country Link
GB (1) GB787098A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3076703A (en) * 1958-04-28 1963-02-05 Arbed Manufacture of steel
DE1608622B1 (en) * 1960-10-01 1969-12-11 Rheinische Kalksteinwerke Process for producing steel by refining pig iron
DE2252795A1 (en) * 1972-10-27 1974-05-22 Sueddeutsche Kalkstickstoff DESULFURIZING AGENT FOR METAL MELTING WITH WATER-RELEASING ADDITIVE
DE3004973A1 (en) * 1979-02-15 1980-08-21 Kawasaki Steel Co DESULFURING AGENT

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3076703A (en) * 1958-04-28 1963-02-05 Arbed Manufacture of steel
DE1608622B1 (en) * 1960-10-01 1969-12-11 Rheinische Kalksteinwerke Process for producing steel by refining pig iron
DE2252795A1 (en) * 1972-10-27 1974-05-22 Sueddeutsche Kalkstickstoff DESULFURIZING AGENT FOR METAL MELTING WITH WATER-RELEASING ADDITIVE
DE3004973A1 (en) * 1979-02-15 1980-08-21 Kawasaki Steel Co DESULFURING AGENT

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