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GB1451287A - Induction furnace - Google Patents

Induction furnace

Info

Publication number
GB1451287A
GB1451287A GB720674A GB720674A GB1451287A GB 1451287 A GB1451287 A GB 1451287A GB 720674 A GB720674 A GB 720674A GB 720674 A GB720674 A GB 720674A GB 1451287 A GB1451287 A GB 1451287A
Authority
GB
United Kingdom
Prior art keywords
coil
legs
rings
feb
coils
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
GB720674A
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
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 filed Critical ASEA AB
Publication of GB1451287A publication Critical patent/GB1451287A/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
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/22—Furnaces without an endless core
    • H05B6/24—Crucible furnaces

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • General Induction Heating (AREA)

Abstract

1451287 Induction heating ALLMANNA SVENSKA ELEKTRISKA AB 18 Feb 1974 [19 Feb 1973] 7206/74 Heading H5H An induction furnace has at least one coil 11 and a yoke formed of at least one laminated iron ring 16, 17 in magnetic circuit with a plurality of laminated iron vertical yoke legs 12-15 spaced apart around the furnace and arranged externally of the coil or coils, the ring(s) 16, 17 being coaxial with the coil or coils 11 and defining a low reluctance magnetic circuit linking the legs. Rings 16, 17 have the same internal diameter as the coil and are constructed of abutting or closely spaced segments each consisting of laminations clamped between top and bottom plates (22, 23, Fig. 4 not shown) welded together through vertical intermediate members (24). The rings may be separated from the legs by electrically insulating material (Fig. 3, not shown). The rings may clamp the coil therebetween. The legs are spaced from the coil.
GB720674A 1973-02-19 1974-02-18 Induction furnace Expired GB1451287A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7302278A SE379618B (en) 1973-02-19 1973-02-19

Publications (1)

Publication Number Publication Date
GB1451287A true GB1451287A (en) 1976-09-29

Family

ID=20316662

Family Applications (1)

Application Number Title Priority Date Filing Date
GB720674A Expired GB1451287A (en) 1973-02-19 1974-02-18 Induction furnace

Country Status (4)

Country Link
JP (2) JPS49113243A (en)
DE (1) DE2405597A1 (en)
GB (1) GB1451287A (en)
SE (1) SE379618B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0639936A1 (en) * 1993-08-16 1995-02-22 Inductotherm Corp. Induction furnace having a modular induction coil assembly
US5430758A (en) * 1992-03-30 1995-07-04 Abb Patent Gmbh Magnetic yoke for an induction crucible furnace
FR2999967A1 (en) * 2012-12-20 2014-06-27 Alstom Hydro France Method for fixing skirt on turbine shaft of hydraulic machinery, involves moving metal part into zone at another zone of another metal part to fix former metal part on former zone of latter metal part
WO2017036438A1 (en) * 2015-09-01 2017-03-09 Abp Induction Systems Gmbh Induction crucible furnace and magnetic return element therefor

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2548856A1 (en) * 1983-07-08 1985-01-11 Saphymo Stel Device for fusion by direct induction in a segmented cold cage
DE9409470U1 (en) * 1994-06-14 1994-08-11 Abb Patent Gmbh, 68309 Mannheim Magnetic yoke with supporting body and insulating body
JP4155884B2 (en) * 2002-11-26 2008-09-24 学校法人東京電機大学 Electromagnetic induction heating device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5416794A (en) * 1990-01-31 1995-05-16 Inductotherm Corp. Induction furnace havng a modular induction coil assembly
US5430758A (en) * 1992-03-30 1995-07-04 Abb Patent Gmbh Magnetic yoke for an induction crucible furnace
EP0639936A1 (en) * 1993-08-16 1995-02-22 Inductotherm Corp. Induction furnace having a modular induction coil assembly
FR2999967A1 (en) * 2012-12-20 2014-06-27 Alstom Hydro France Method for fixing skirt on turbine shaft of hydraulic machinery, involves moving metal part into zone at another zone of another metal part to fix former metal part on former zone of latter metal part
WO2017036438A1 (en) * 2015-09-01 2017-03-09 Abp Induction Systems Gmbh Induction crucible furnace and magnetic return element therefor

Also Published As

Publication number Publication date
JPS49113243A (en) 1974-10-29
JPS5565799U (en) 1980-05-07
JPS5612794Y2 (en) 1981-03-24
SE379618B (en) 1975-10-13
DE2405597A1 (en) 1974-08-29

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee