FR2044628A1 - Refining steel in open hearth furnaces - Google Patents

Refining steel in open hearth furnaces

Info

Publication number
FR2044628A1
FR2044628A1 FR6908787A FR6908787A FR2044628A1 FR 2044628 A1 FR2044628 A1 FR 2044628A1 FR 6908787 A FR6908787 A FR 6908787A FR 6908787 A FR6908787 A FR 6908787A FR 2044628 A1 FR2044628 A1 FR 2044628A1
Authority
FR
France
Prior art keywords
melt
degrees
open hearth
hearth furnaces
refining steel
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.)
Withdrawn
Application number
FR6908787A
Other languages
French (fr)
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.)
MO TRUDOVO
Original Assignee
MO TRUDOVO
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 MO TRUDOVO filed Critical MO TRUDOVO
Priority to FR6908787A priority Critical patent/FR2044628A1/en
Publication of FR2044628A1 publication Critical patent/FR2044628A1/en
Withdrawn legal-status Critical Current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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

Scrap and flux are added to the melt during blowing and the basic melt is cast onto a flux already in the hearth to form a primary slag. The melt is brought to 1550 degrees-1575 degrees C and blown with O2 while scrap is added at a rate ensuring the maintenance of melt temps. of at least 1500 degrees C. The furnace may be a Martin furnace. The process is quicker than prior art processes.
FR6908787A 1969-03-25 1969-03-25 Refining steel in open hearth furnaces Withdrawn FR2044628A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6908787A FR2044628A1 (en) 1969-03-25 1969-03-25 Refining steel in open hearth furnaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6908787A FR2044628A1 (en) 1969-03-25 1969-03-25 Refining steel in open hearth furnaces

Publications (1)

Publication Number Publication Date
FR2044628A1 true FR2044628A1 (en) 1971-02-26

Family

ID=9031235

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6908787A Withdrawn FR2044628A1 (en) 1969-03-25 1969-03-25 Refining steel in open hearth furnaces

Country Status (1)

Country Link
FR (1) FR2044628A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1302804A (en) * 1961-10-06 1962-08-31 Yawata Iron & Steel Co Method of operating a siemens-martin oven

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1302804A (en) * 1961-10-06 1962-08-31 Yawata Iron & Steel Co Method of operating a siemens-martin oven

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Legal Events

Date Code Title Description
ST Notification of lapse