GB939521A - A consumable electrode melting furnace and process - Google Patents

A consumable electrode melting furnace and process

Info

Publication number
GB939521A
GB939521A GB7720/61A GB772061A GB939521A GB 939521 A GB939521 A GB 939521A GB 7720/61 A GB7720/61 A GB 7720/61A GB 772061 A GB772061 A GB 772061A GB 939521 A GB939521 A GB 939521A
Authority
GB
United Kingdom
Prior art keywords
coil
crucible
centroid
pool
melting furnace
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
GB7720/61A
Inventor
Richard Evans Lyman
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.)
United States Steel Corp
Original Assignee
United States Steel Corp
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 United States Steel Corp filed Critical United States Steel Corp
Priority to GB7720/61A priority Critical patent/GB939521A/en
Publication of GB939521A publication Critical patent/GB939521A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B7/00—Heating by electric discharge
    • H05B7/02—Details
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/34—Arrangements for circulation of melts
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/02—Stirring of melted material in melting furnaces
    • 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)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Geology (AREA)
  • Metallurgy (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Electromagnetism (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Discharge Heating (AREA)

Abstract

939,521. Electromagnetic stirring. UNITED STATES STEEL CORPORATION. March 2, 1961, No. 7720/61. Class 86. [Also in Group XI] A consumable electrode melting furnace comprising a crucible 10 having a water jacket 15 and an electrode 12 which melts and drips into the crucible when an arc is struck, is provided with an electromagnetic stirring device consisting of a coil 21 surrounding the water-jacket of the crucible; when a high amperage direct current is passed through the coil, vertical lines of magnetic force M act on the radial lines I of current flow to stir the material in the pool 18. The coil is of axial length less than its outside diameter and can be raised and lowered on guide rods 23. In a melting process primarily for magnetic material, the height of the centroid of the coil is maintained below the surface of the pool 18 by a distance preferably 1/6 to 2/3 the mean diameter of the coil, which is energized at successive stages of the melting process to produce a vertical flux density of 30 to 300 gauss at its centroid with a current of 40 to 160 amperes. U.S.A. Specifications 2,640,860 and 2,798,107 are referred to.
GB7720/61A 1961-03-02 1961-03-02 A consumable electrode melting furnace and process Expired GB939521A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7720/61A GB939521A (en) 1961-03-02 1961-03-02 A consumable electrode melting furnace and process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7720/61A GB939521A (en) 1961-03-02 1961-03-02 A consumable electrode melting furnace and process

Publications (1)

Publication Number Publication Date
GB939521A true GB939521A (en) 1963-10-16

Family

ID=9838465

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7720/61A Expired GB939521A (en) 1961-03-02 1961-03-02 A consumable electrode melting furnace and process

Country Status (1)

Country Link
GB (1) GB939521A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0519319A1 (en) * 1991-06-20 1992-12-23 Asea Brown Boveri Ag Method of operating a direct current arc furnace
US5738823A (en) * 1995-07-24 1998-04-14 Asea Brown Boveri Ag Meltdown apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0519319A1 (en) * 1991-06-20 1992-12-23 Asea Brown Boveri Ag Method of operating a direct current arc furnace
CH682281A5 (en) * 1991-06-20 1993-08-13 Asea Brown Boveri
US5317591A (en) * 1991-06-20 1994-05-31 Asea Brown Boveri Ltd. Direct-current arc furnace
US5738823A (en) * 1995-07-24 1998-04-14 Asea Brown Boveri Ag Meltdown apparatus

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