GB1111402A - Improvements in or relating to induction furnaces - Google Patents

Improvements in or relating to induction furnaces

Info

Publication number
GB1111402A
GB1111402A GB36085/66A GB3608566A GB1111402A GB 1111402 A GB1111402 A GB 1111402A GB 36085/66 A GB36085/66 A GB 36085/66A GB 3608566 A GB3608566 A GB 3608566A GB 1111402 A GB1111402 A GB 1111402A
Authority
GB
United Kingdom
Prior art keywords
gas
inert
agitation
aug
agitating
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
GB36085/66A
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.)
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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 Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Publication of GB1111402A publication Critical patent/GB1111402A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
    • B22D1/002—Treatment with gases
    • B22D1/005—Injection assemblies therefor
    • 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
    • C21C5/5211—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace
    • C21C5/5217—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace equipped with burners or devices for injecting gas, i.e. oxygen, or pulverulent materials into the furnace
    • 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
    • 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
    • C21C7/0037—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by injecting powdered material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D11/00—Arrangement of elements for electric heating in or on furnaces
    • F27D11/06—Induction heating, i.e. in which the material being heated, or its container or elements embodied therein, form the secondary of a transformer
    • 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

Abstract

1,111,402. Agitating metal melts. L'AIR LIQUIDE, SOC. ANON. POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE. 11 Aug., 1966 [13 Aug., 1965; 27 June, 1966], No. 36085/66. Heading B1C. [Also in Division F4] A metallurgical induction furnace crucible 1 has in its lower portion at least one porous refactory plug 4 through which inert gas may be admitted to modify the electro-magnetic agitation currents; agitation by the gas may take place during, before or after the electromagnetic agitation. The gas may be inert or reactive. The crucible may have a cover (40, 42 Fig. 3, not shown) to conserve the atmosphere derived from an inert agitating gas; it may be provided with a gas inlet pipe (46). The winding 2 is energised by alternating current at 500-2,000 cycles/sec and gas is introduced at a rate of 0.2 to 2.1/min/cm<SP>2</SP> of plug surface in contact with the melt.
GB36085/66A 1965-08-13 1965-08-11 Improvements in or relating to induction furnaces Expired GB1111402A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR28232A FR1462261A (en) 1965-08-13 1965-08-13 Improvement in metallurgical processes using the induction furnace
FR57466A FR89979E (en) 1965-08-13 1966-04-13 Improvement in metallurgical processes using the induction furnace
FR67105A FR90445E (en) 1965-08-13 1966-06-27 Improvements in metallurgical processes using the induction furnace

Publications (1)

Publication Number Publication Date
GB1111402A true GB1111402A (en) 1968-04-24

Family

ID=61556818

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36085/66A Expired GB1111402A (en) 1965-08-13 1965-08-11 Improvements in or relating to induction furnaces

Country Status (6)

Country Link
BE (1) BE685316A (en)
CH (1) CH458419A (en)
DE (1) DE1508111B1 (en)
FR (3) FR1462261A (en)
GB (1) GB1111402A (en)
SE (1) SE315351B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023759A1 (en) * 1979-06-29 1981-02-11 William H. Moore Method of recycling steel scrap

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE328967B (en) * 1969-02-20 1970-09-28 Asea Ab
DE2818495B1 (en) * 1978-04-27 1979-10-04 Hans Horst Schmelz Und Giesste Process for melting aluminum or aluminum alloys in an induction channel melting furnace
FR2671563B1 (en) * 1991-01-11 1994-08-05 Air Liquide METALLURGICAL TREATMENT PROCESS.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE634450C (en) * 1933-11-08 1936-08-27 Siemens Schuckertwerke Akt Ges Melting tank
GB458025A (en) * 1934-05-09 1936-12-07 Ivar Rennerfelt Improvements in or relating to the refining of carbon-containing alloys and metals
FR1359312A (en) * 1963-03-14 1964-04-24 Siderurgie Fse Inst Rech Improvements to the degassing processes of molten metals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023759A1 (en) * 1979-06-29 1981-02-11 William H. Moore Method of recycling steel scrap

Also Published As

Publication number Publication date
DE1508111B1 (en) 1970-08-27
FR1462261A (en) 1966-04-15
SE315351B (en) 1969-09-29
BE685316A (en) 1967-02-10
CH458419A (en) 1968-06-30
FR89979E (en) 1967-09-22
FR90445E (en) 1967-12-08

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