GB842889A - Improvements relating to induction melting furnaces and to inductors therefor - Google Patents

Improvements relating to induction melting furnaces and to inductors therefor

Info

Publication number
GB842889A
GB842889A GB31071/56A GB3107156A GB842889A GB 842889 A GB842889 A GB 842889A GB 31071/56 A GB31071/56 A GB 31071/56A GB 3107156 A GB3107156 A GB 3107156A GB 842889 A GB842889 A GB 842889A
Authority
GB
United Kingdom
Prior art keywords
coil
sections
contactors
transformer
separate
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
GB31071/56A
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.)
Ohio Crankshaft Co
Original Assignee
Ohio Crankshaft Co
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 Ohio Crankshaft Co filed Critical Ohio Crankshaft Co
Publication of GB842889A publication Critical patent/GB842889A/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
    • H05B6/06—Control, e.g. of temperature, of power
    • H05B6/067—Control, e.g. of temperature, of power for melting furnaces
    • 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
    • H05B6/26—Crucible furnaces using vacuum or particular gas atmosphere

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Induction Heating (AREA)

Abstract

842,889. Induction furnaces. OHIO CRANK SHAFT CO. Oct. 11, 1956 [June 29, 1956], No. 31071/56. Class 39(3). [Also in Group XXXV] A high-frequency induction furnace comprises an inductor coil 16 made in three separate one-turn sections A, B, C, and embedded in a refractory lining 14 surrounding a crucible 13; coolant tubes 17 are provided. The sections A, B, C are electrically connected independently of one another to an auto-transformer 19 energized from a high frequency power source, provision for varying the voltage across each coil section being made by manually operated contactors 25 interlocked or otherwise mechanically inter-connected to prevent the possibility of short-circuiting between the transformer tappings. Power factor correction condensers 29 are connected across the coil sections, and metering devices 30 enable the current flow in each section to be determined. The contactors may be electrically remotely controlled and they may be operated automatically in accordance with the current charges indicated by the meters. The independent control of separate coil sections permits compensation for the differing current distribution which normally occurs in a single-turn coil melting furnace. The furnace includes a housing 11 in which a vacuum may be established by means of a vacuum pump connection 12.
GB31071/56A 1956-06-29 1956-10-11 Improvements relating to induction melting furnaces and to inductors therefor Expired GB842889A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US842889XA 1956-06-29 1956-06-29

Publications (1)

Publication Number Publication Date
GB842889A true GB842889A (en) 1960-07-27

Family

ID=22184000

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31071/56A Expired GB842889A (en) 1956-06-29 1956-10-11 Improvements relating to induction melting furnaces and to inductors therefor

Country Status (1)

Country Link
GB (1) GB842889A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146186A (en) * 1983-08-25 1985-04-11 Electroheating Int Apparatus for electrically heating a metallic workpiece
CN103491663B (en) * 2013-10-10 2016-01-13 铜陵金威铜业有限公司 Channel induction furnace opens molten supply unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146186A (en) * 1983-08-25 1985-04-11 Electroheating Int Apparatus for electrically heating a metallic workpiece
CN103491663B (en) * 2013-10-10 2016-01-13 铜陵金威铜业有限公司 Channel induction furnace opens molten supply unit

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