GB1240272A - Improvements in induction furnaces - Google Patents

Improvements in induction furnaces

Info

Publication number
GB1240272A
GB1240272A GB4822268A GB4822268A GB1240272A GB 1240272 A GB1240272 A GB 1240272A GB 4822268 A GB4822268 A GB 4822268A GB 4822268 A GB4822268 A GB 4822268A GB 1240272 A GB1240272 A GB 1240272A
Authority
GB
United Kingdom
Prior art keywords
furnace
melt
slag
oct
tilted
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
GB4822268A
Inventor
Bengt Fredriksson
Kare Folgero
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
Allmanna Svenska Elektriska AB
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 ASEA AB, Allmanna Svenska Elektriska AB filed Critical ASEA AB
Publication of GB1240272A publication Critical patent/GB1240272A/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
    • C21C7/10—Handling in a vacuum
    • 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

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Abstract

1,240,272. Vacuum induction furnaces. ALLMANNA SVENSKA ELEKTRISKA A.B. 11 Oct., 1968 [13 Oct., 1967], No. 48222/68. Heading F4B. An hydraulically tiltable vacuum induction furnace for degassing steel, in which the melt flows through the secondary channels of one or more inductors (21, Fig. 1, not shown), detachably secured to the furnace bottom, comprises upper and lower sections 11, 12 gas-tightly secured together, and a gas-tight cover 13 provided with a hopper for adding solid alloying constituents through a valve 14a and evacuation and pressurized gas supply lines (not shown). On completion of degassing, melt is discharged through channel 17, to which a discharge spout 18 may be detachably secured in place of the usual closure plate 20, by the pressure of argon gas supplied above the melt surface. The furnace may also be tilted to the right. Protective gas supplied through porous plug 27 prevents reabsorption of harmful gases in the channel 17. The furnace is subsequently moved clear of the stationary cover 13 by being tilted to the left, and slag and metal residues are discharged through the thus uncovered top aperture around which a refractory slag runner (not shown) is attached. After scraping of slag deposits from the walls, and spray repairing of the hearth lining 12, a fresh charge of melt is added through the uncovered top aperture. All connections between detachable parts may be liquid-cooled and coated with magnesium chromite, to prevent the parts sintering together in use.
GB4822268A 1967-10-13 1968-10-11 Improvements in induction furnaces Expired GB1240272A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1405767A SE327053B (en) 1967-10-13 1967-10-13

Publications (1)

Publication Number Publication Date
GB1240272A true GB1240272A (en) 1971-07-21

Family

ID=20298444

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4822268A Expired GB1240272A (en) 1967-10-13 1968-10-11 Improvements in induction furnaces

Country Status (5)

Country Link
US (1) US3529069A (en)
DE (1) DE1802197B2 (en)
FR (1) FR1586247A (en)
GB (1) GB1240272A (en)
SE (1) SE327053B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3917241A (en) * 1973-01-15 1975-11-04 Lectromelt Corp Molten metal holding furnace system
DE3507648A1 (en) * 1985-03-05 1986-09-11 Klöckner-Humboldt-Deutz AG, 5000 Köln DEVICE AND METHOD FOR KEEPING LIQUID METAL MELS WARM
DE3530471A1 (en) * 1985-08-27 1987-03-05 Leybold Heraeus Gmbh & Co Kg INDUCTION OVEN WITH A BOTTOM BASE AND LID
DE4229764C2 (en) * 1992-09-05 2000-08-10 Ald Vacuum Techn Ag Closed induction furnace for melting and pouring fabrics

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2937789A (en) * 1953-10-16 1960-05-24 Ajax Magnethermic Corp Controlled metal dispensing
US3061655A (en) * 1958-11-12 1962-10-30 Shaw Process Dev Corp Electric arc furnaces
US3191247A (en) * 1959-09-08 1965-06-29 Lindberg Engineering Co Furnace ladling apparatus
US3160929A (en) * 1961-04-17 1964-12-15 Amsted Ind Inc Ladle pouring control
US3187394A (en) * 1961-09-18 1965-06-08 Ajax Magnethermic Corp Apparatus for pouring molten metal into molds
FR1488313A (en) * 1966-04-22 1967-07-13 Ct De Rech S De Pont A Mousson Advanced device for controlling liquid ladles

Also Published As

Publication number Publication date
SE327053B (en) 1970-08-10
DE1802197A1 (en) 1971-01-21
DE1802197B2 (en) 1971-07-22
FR1586247A (en) 1970-02-13
US3529069A (en) 1970-09-15

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