GB458025A - Improvements in or relating to the refining of carbon-containing alloys and metals - Google Patents

Improvements in or relating to the refining of carbon-containing alloys and metals

Info

Publication number
GB458025A
GB458025A GB13497/35A GB1349735A GB458025A GB 458025 A GB458025 A GB 458025A GB 13497/35 A GB13497/35 A GB 13497/35A GB 1349735 A GB1349735 A GB 1349735A GB 458025 A GB458025 A GB 458025A
Authority
GB
United Kingdom
Prior art keywords
slag
current
refining
atmosphere
metals
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
GB13497/35A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB458025A publication Critical patent/GB458025A/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
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5241—Manufacture of steel in electric furnaces in an inductively heated furnace
    • 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
    • Y02P10/25—Process efficiency

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 refining carbon-containing metals and alloys in an induction furnace in the presence of a reducing atmosphere obtained by expelling the initial atmosphere by means of an inert gas or vapour and subsequently removing the inert gas &c. by the introduction of the reducing gas, the introduction and removal of the gas for expelling the atmosphere in the furnace is effected only when the bath has become practically motionless by cutting off the current and when a protecting slag layer has been formed due to the particles in the slag rising to the surface when the current is cut off. The charge is normally covered by a slag but if no slag is present a slag-forming substance is added before the current is cut off, the slag layer being removed before switching on the current again. Alternatively, when no slag is present, slag-forming substances in small amounts are added before cutting of the current, but this slag which forms a skin is not removed before the current is switched on again. Slag forming substances which are added comprise hydroxides or carbonates or mixtures thereof of the alkaline or alkaline earth metals. The process may be applied to the refining of iron or iron alloys such as ferrochromaluminium ferrochrommagnesium and ferrochromcalcium.
GB13497/35A 1934-05-09 1935-05-07 Improvements in or relating to the refining of carbon-containing alloys and metals Expired GB458025A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE458025X 1934-05-09

Publications (1)

Publication Number Publication Date
GB458025A true GB458025A (en) 1936-12-07

Family

ID=6539384

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13497/35A Expired GB458025A (en) 1934-05-09 1935-05-07 Improvements in or relating to the refining of carbon-containing alloys and metals

Country Status (1)

Country Link
GB (1) GB458025A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1508111B1 (en) * 1965-08-13 1970-08-27 Air Liquide Process for cleaning the melt in a metallurgical induction furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1508111B1 (en) * 1965-08-13 1970-08-27 Air Liquide Process for cleaning the melt in a metallurgical induction furnace

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