GB1243162A - Installation for electro-slag remelting of metals in particular of steels - Google Patents

Installation for electro-slag remelting of metals in particular of steels

Info

Publication number
GB1243162A
GB1243162A GB5224/70A GB522470A GB1243162A GB 1243162 A GB1243162 A GB 1243162A GB 5224/70 A GB5224/70 A GB 5224/70A GB 522470 A GB522470 A GB 522470A GB 1243162 A GB1243162 A GB 1243162A
Authority
GB
United Kingdom
Prior art keywords
electrodes
voltage
current
phase
electro
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
GB5224/70A
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.)
Gebrueder Boehler and Co AG
Original Assignee
Gebrueder Boehler and Co AG
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 Gebrueder Boehler and Co AG filed Critical Gebrueder Boehler and Co AG
Publication of GB1243162A publication Critical patent/GB1243162A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • F27D11/08—Heating by electric discharge, e.g. arc discharge
    • 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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/0019—Circuit arrangements
    • H05B3/0023—Circuit arrangements for heating by passing the current directly across the material to be heated
    • 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)
  • Mechanical Engineering (AREA)
  • General 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)
  • Discharge Heating (AREA)
  • Furnace Details (AREA)

Abstract

1,243,162. Electro-slag refining supply systems. BOHLER & CO. A.G. GEB. 3 Feb., 1970 [3 Feb., 1969], No. 5224/70. Heading H2H. The electrodes 9, 9<SP>1</SP> of an electro-slag remelting apparatus are fed from a three phase A.C. supply RST by way of two parallel circuits comprising ON-OFF switches 2, 2<SP>1</SP>, step-down transformers 3, 31 and thyristor devices 6,6<SP>1</SP>, each of the thyristor devices being arranged to provide a single phase alternating voltage output having a square waveform, the outputs being connected one to each of the electrodes 9, 9<SP>1</SP> and commonly to the mould 14 of the remelting apparatus. The output voltages U 1 , U 2 of the thyristor devices 6, 6<SP>1</SP> are adjustably controllable by means of a device 7 infinitely between an in-phase relationship and an antiphase relationship. When the voltages U 1 , U 2 are in phase the voltage U E between the electrodes 9, 9<SP>1</SP> is zero, the current J E between the electrodes is zero and the current J B between the electrodes and the base 14 is a maximum. Conversely when the voltages U 1 , U 2 are antiphase, the voltage U E between the electrodes is a maximum, the current J E between the electrodes is a maximum and the current between the electrodes and the base is zero. Values of voltage and current between these figures are obtained by phase shifting the voltage U 1 relatively to the voltage U 2 . The electrodes may each comprise a group of electrodes in parallel and, if desired, more than two groups of electrodes may be provided which are energized in a sequence so as to produce a rotary field which causes a stirring effect in the slag and liquid metal. Furthermore the energization may be reversed to reverse the stirring effect.
GB5224/70A 1969-02-03 1970-02-03 Installation for electro-slag remelting of metals in particular of steels Expired GB1243162A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT102269A AT285839B (en) 1969-02-03 1969-02-03 Plant for electroslag remelting of metals, especially steels

Publications (1)

Publication Number Publication Date
GB1243162A true GB1243162A (en) 1971-08-18

Family

ID=3505034

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5224/70A Expired GB1243162A (en) 1969-02-03 1970-02-03 Installation for electro-slag remelting of metals in particular of steels

Country Status (13)

Country Link
JP (1) JPS5030564B1 (en)
AT (1) AT285839B (en)
BE (1) BE745408A (en)
CH (1) CH526639A (en)
CS (1) CS179358B2 (en)
DE (1) DE2003945C3 (en)
FR (1) FR2033817A5 (en)
GB (1) GB1243162A (en)
LU (1) LU60297A1 (en)
PL (1) PL80447B1 (en)
SE (1) SE359425B (en)
SU (1) SU366630A3 (en)
ZA (1) ZA70748B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1848248A1 (en) * 2006-04-21 2007-10-24 ABB Schweiz AG Arc furnace power supply
CN103088220A (en) * 2013-01-30 2013-05-08 东南大学 Three-phase-equilibrium electroslag refining furnace

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT307643B (en) * 1971-06-09 1973-05-25 Boehler & Co Ag Geb Electroslag remelting process and remelting device for the production of blocks from metal, in particular steel alloys
NO139796C (en) * 1977-09-26 1979-05-09 Elkem Spigerverket As DC DC OVEN.
RU2448173C2 (en) * 2009-09-24 2012-04-20 Сергей Маркович Нехамин Electroslag remelting method and device for its implementation
CN102703722B (en) * 2012-01-20 2013-08-21 苏州振吴电炉有限公司 Tower-type furnace end lifting mechanism of electro slag furnace

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE328357C (en) * 1914-02-24 1920-10-27 Joseph Lawton Dixon Circuit for electric ovens in which the electrodes are fed with transformed multiphase alternating current
DE1169050B (en) * 1961-05-16 1964-04-30 Demag Elektrometallurgie Gmbh Electric high-performance reduction furnace
DE1156520B (en) * 1962-07-06 1963-10-31 Heraeus Gmbh W C Device and method for operating an electric arc furnace
US3396229A (en) * 1964-06-22 1968-08-06 Asea Ab Device for inductive heating and/or stirring
AT309838B (en) * 1966-12-24 1973-09-10 Inst Elektroswarki Patona Plant for electroslag remelting of metals and alloys
FR1540339A (en) * 1967-03-20 1968-09-27 Loire Atel Forges Installation for the remelting of metals in electrically conductive slag, or in a controlled atmosphere
US3395237A (en) * 1967-05-03 1968-07-30 Harold S. Orton Electric resistance furnace
BE702317A (en) * 1967-08-04 1968-02-05

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1848248A1 (en) * 2006-04-21 2007-10-24 ABB Schweiz AG Arc furnace power supply
CN103088220A (en) * 2013-01-30 2013-05-08 东南大学 Three-phase-equilibrium electroslag refining furnace

Also Published As

Publication number Publication date
SE359425B (en) 1973-08-27
AT285839B (en) 1970-11-10
DE2003945A1 (en) 1970-08-06
ZA70748B (en) 1971-09-29
LU60297A1 (en) 1970-04-06
FR2033817A5 (en) 1970-12-04
DE2003945C3 (en) 1984-02-02
JPS5030564B1 (en) 1975-10-02
PL80447B1 (en) 1975-08-30
CS179358B2 (en) 1977-10-31
CH526639A (en) 1972-08-15
SU366630A3 (en) 1973-01-16
BE745408A (en) 1970-07-16
DE2003945B2 (en) 1978-06-01

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