GB165465A - Improvements in or relating to the use of fluorspar in steel making - Google Patents

Improvements in or relating to the use of fluorspar in steel making

Info

Publication number
GB165465A
GB165465A GB1774519A GB1774519A GB165465A GB 165465 A GB165465 A GB 165465A GB 1774519 A GB1774519 A GB 1774519A GB 1774519 A GB1774519 A GB 1774519A GB 165465 A GB165465 A GB 165465A
Authority
GB
United Kingdom
Prior art keywords
added
spar
fluor
per cent
fluorspar
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
GB1774519A
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.)
FRANK CALVERT
Original Assignee
FRANK CALVERT
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 FRANK CALVERT filed Critical FRANK CALVERT
Priority to GB1774519A priority Critical patent/GB165465A/en
Publication of GB165465A publication Critical patent/GB165465A/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
    • 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)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

165,465. Calvert, F. July 16, 1919. Purifying and refining.-In the production of steel from pig and scrap in acid-lined open-hearth furnaces, and under a basic slag, a quantity of fluor-spar sufficient to neutralize the silicon content of the charge is added in stages after melting has begun. At the first stage, at least 25 per cent of the fluor-spar is added, and when the melting is completed lime and limestone are added. Another 25 per cent of fluor-spar is added during the boiling stage, which is continued until the carbon content is about 0.3 per cent above that required in the final product. The remainder of the fluor-spar is then added gradually, and the charge is finished quickly. During tapping, fluorspar may be. added to the metal in the ladle.; fluor-spar may also be added to the metal as it runs from the ladle to the ingot moulds.
GB1774519A 1919-07-16 1919-07-16 Improvements in or relating to the use of fluorspar in steel making Expired GB165465A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1774519A GB165465A (en) 1919-07-16 1919-07-16 Improvements in or relating to the use of fluorspar in steel making

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1774519A GB165465A (en) 1919-07-16 1919-07-16 Improvements in or relating to the use of fluorspar in steel making

Publications (1)

Publication Number Publication Date
GB165465A true GB165465A (en) 1921-07-07

Family

ID=10100480

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1774519A Expired GB165465A (en) 1919-07-16 1919-07-16 Improvements in or relating to the use of fluorspar in steel making

Country Status (1)

Country Link
GB (1) GB165465A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE891277C (en) * 1939-09-05 1953-09-28 Hoerder Huettenunion Ag Process for the production of low-viscosity, pure and low-gas alloyed or siliconized steels

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE891277C (en) * 1939-09-05 1953-09-28 Hoerder Huettenunion Ag Process for the production of low-viscosity, pure and low-gas alloyed or siliconized steels

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