GB615150A - Improvements in and relating to eddy current heating - Google Patents

Improvements in and relating to eddy current heating

Info

Publication number
GB615150A
GB615150A GB2254146A GB2254146A GB615150A GB 615150 A GB615150 A GB 615150A GB 2254146 A GB2254146 A GB 2254146A GB 2254146 A GB2254146 A GB 2254146A GB 615150 A GB615150 A GB 615150A
Authority
GB
United Kingdom
Prior art keywords
workpiece
coil
induction
conductor
platform
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
GB2254146A
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.)
HUGH MITCHELL NELSON
General Electric Co PLC
Original Assignee
HUGH MITCHELL NELSON
General Electric Co PLC
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 HUGH MITCHELL NELSON, General Electric Co PLC filed Critical HUGH MITCHELL NELSON
Priority to GB2254146A priority Critical patent/GB615150A/en
Publication of GB615150A publication Critical patent/GB615150A/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
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/101—Induction heating apparatus, other than furnaces, for specific applications for local heating of metal pieces
    • H05B6/102—Induction heating apparatus, other than furnaces, for specific applications for local heating of metal pieces the metal pieces being rotated while induction heated
    • 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
    • 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
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/101—Induction heating apparatus, other than furnaces, for specific applications for local heating of metal pieces

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Induction Heating (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

615,150. Induction-heating apparatus. GENERAL ELECTRIC CO., Ltd., and NELSON, H. M. July 29, 1946, Nos. 22541 and 37131. [Class 39 (iii)] [Also in Group XXXV] The power input to a workpiece being heat treated is kept substantially constant by effecting relative movement between the workpiece and induction, coil, or between two concentrically arranged electromagnetically coupled conductors, the inner conductor surrounding the workpiece. In one embodiment, the workpiece 14, Fig. 1, is supported on a platform 13 and surrounded by the induction coil 15 which is supplied from a D.C. source 2 and oscillation generator 1. Wattmeter 6, arranged in the D.C. supply circuit, has its moving element 7 co-operating with contact 8 or 9 depending on the power passing therethrough, the contacts being arranged in circuit with a reversible electric motor 10. The motor is connected through gearing to platform 13 and thereby moves the workpiece towards or away from the coil 15. Alternatively the conductor 19 having an inducing portion 16 surrounding the workpiece and in fixed relation therewith may have relative motion with respect to the coil 20 as described. Further, the coil 20 may move, or may be in series-connected halves which move towards or away from each other. In a further embodiment when a number of similar workpieces are to be treated, the heating time to reach the Curie point is determined and the conductor 19 moved automatically, after this time, into greater inductive relationship with the coil 20.
GB2254146A 1946-07-29 1946-07-29 Improvements in and relating to eddy current heating Expired GB615150A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2254146A GB615150A (en) 1946-07-29 1946-07-29 Improvements in and relating to eddy current heating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2254146A GB615150A (en) 1946-07-29 1946-07-29 Improvements in and relating to eddy current heating

Publications (1)

Publication Number Publication Date
GB615150A true GB615150A (en) 1949-01-03

Family

ID=10181076

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2254146A Expired GB615150A (en) 1946-07-29 1946-07-29 Improvements in and relating to eddy current heating

Country Status (1)

Country Link
GB (1) GB615150A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2868902A (en) * 1958-03-19 1959-01-13 Prec Metalsmiths Inc Induction heater control
US2949523A (en) * 1957-10-17 1960-08-16 Gen Motors Corp Dielectric heating apparatus
US2971754A (en) * 1958-07-16 1961-02-14 Ohio Crankshaft Co Control of high frequency induction heating
FR2191393A1 (en) * 1972-06-26 1974-02-01 Elphiac Sa INDUCTION HEATING DEVICE.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2949523A (en) * 1957-10-17 1960-08-16 Gen Motors Corp Dielectric heating apparatus
US2868902A (en) * 1958-03-19 1959-01-13 Prec Metalsmiths Inc Induction heater control
US2971754A (en) * 1958-07-16 1961-02-14 Ohio Crankshaft Co Control of high frequency induction heating
FR2191393A1 (en) * 1972-06-26 1974-02-01 Elphiac Sa INDUCTION HEATING DEVICE.

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