GB1133162A - Improvements in electrical induction furnaces - Google Patents

Improvements in electrical induction furnaces

Info

Publication number
GB1133162A
GB1133162A GB10724/66A GB1072466A GB1133162A GB 1133162 A GB1133162 A GB 1133162A GB 10724/66 A GB10724/66 A GB 10724/66A GB 1072466 A GB1072466 A GB 1072466A GB 1133162 A GB1133162 A GB 1133162A
Authority
GB
United Kingdom
Prior art keywords
stirrer
coil
inductor unit
channel
polyphase
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
GB10724/66A
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.)
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
Priority claimed from SE3309/65A external-priority patent/SE316548B/xx
Application filed by ASEA AB, Allmanna Svenska Elektriska AB filed Critical ASEA AB
Publication of GB1133162A publication Critical patent/GB1133162A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/06—Crucible or pot furnaces heated electrically, e.g. induction crucible furnaces with or without any other source of heat
    • F27B14/061—Induction furnaces
    • F27B14/065—Channel type
    • 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
    • H05B6/16—Furnaces having endless cores
    • H05B6/20—Furnaces having endless cores having melting channel only
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Details (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

1,133,162. Electro-magnetic stirrers. ALLMANNA SVENSKA ELEKTRISKA AB. 11 March, 1966 [13 March, 1965], No. 10724/66. Heading B1C. An electric induction furnace has a hearth I and an inductor unit comprising a melt channel 2 embracing an induction heating coil 4 on an iron core 3; a single, 2- or polyphase stirrer to promote circulation through the channel 2 is placed outside the refractory furnace lining 5 at 6, 7 and/or 8. The stirrer may be coil wound, or plane wound in the manner of the stator of an asynchronous machine; it may be excited at mains frequency or at a lower frequency, which in the case of a polyphase stirrer may be 0.4 to 10 c.p.s. The stirrer is air or water cooled. In another embodiment (Figs. 3 and 4 not shown) the inductor unit is detachable; there are two heating coils with an additional channel between them; the leakage flux may be concentrated by laminations (27); and a shield (24) of non-ferromagnetic material extends along the inside of the magnetic casing of the unit and outside the stirrer to protect it from the influence of the main flux. The device may be constructed as a vacuum furnace or placed in an evacuated enclosure, when the stirrer and/or coil and yoke of the inductor unit are preferably under atmospheric pressure to avoid glow discharges.
GB10724/66A 1965-03-13 1966-03-11 Improvements in electrical induction furnaces Expired GB1133162A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE3309/65A SE316548B (en) 1965-03-13 1965-03-13
SE1240629X 1965-03-13

Publications (1)

Publication Number Publication Date
GB1133162A true GB1133162A (en) 1968-11-13

Family

ID=26654432

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10724/66A Expired GB1133162A (en) 1965-03-13 1966-03-11 Improvements in electrical induction furnaces

Country Status (2)

Country Link
DE (1) DE1240629B (en)
GB (1) GB1133162A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102901352A (en) * 2012-11-01 2013-01-30 洛阳双瑞达特铜有限公司 Method for repairing melting groove copper mold for inductor of core frequency induction furnace
WO2014202966A1 (en) * 2013-06-21 2014-12-24 Emp Technologies Limited Metallurgical apparatus
CN110982990A (en) * 2019-12-17 2020-04-10 广德因达电炉成套设备有限公司 Molten metal heating stirring and argon blowing treatment device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021121030A1 (en) 2021-08-12 2023-02-16 Otto Junker Gesellschaft mit beschränkter Haftung Device for inductively heating molten metal, multi-chamber melting furnace for melting metal scrap and method for melting metal scrap

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1098972B (en) * 1952-09-20 1961-02-09 Asea Ab Electromagnetic agitator for metal baths in metallurgical ovens and procedures for operating the agitator
GB913029A (en) * 1960-05-21 1962-12-12 Asea Ab Low frequency induction furnace of the melting channel type

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102901352A (en) * 2012-11-01 2013-01-30 洛阳双瑞达特铜有限公司 Method for repairing melting groove copper mold for inductor of core frequency induction furnace
WO2014202966A1 (en) * 2013-06-21 2014-12-24 Emp Technologies Limited Metallurgical apparatus
GB2515475B (en) * 2013-06-21 2016-08-31 Emp Tech Ltd Metallurgical apparatus
CN110982990A (en) * 2019-12-17 2020-04-10 广德因达电炉成套设备有限公司 Molten metal heating stirring and argon blowing treatment device

Also Published As

Publication number Publication date
DE1240629B (en) 1967-05-18

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