SE8305807D0 - INDUCTION HEATER FOR HEATING OF CIRCULATED PRODUCTS, SEPARATELY ROLLING STOCK - Google Patents

INDUCTION HEATER FOR HEATING OF CIRCULATED PRODUCTS, SEPARATELY ROLLING STOCK

Info

Publication number
SE8305807D0
SE8305807D0 SE8305807A SE8305807A SE8305807D0 SE 8305807 D0 SE8305807 D0 SE 8305807D0 SE 8305807 A SE8305807 A SE 8305807A SE 8305807 A SE8305807 A SE 8305807A SE 8305807 D0 SE8305807 D0 SE 8305807D0
Authority
SE
Sweden
Prior art keywords
heating
induction heater
switch
article
rolling stock
Prior art date
Application number
SE8305807A
Other languages
Swedish (sv)
Other versions
SE439718B (en
SE8305807L (en
Inventor
C Aronsson
Original Assignee
Spm Instr 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 Spm Instr Ab filed Critical Spm Instr Ab
Priority to SE8305807A priority Critical patent/SE439718B/en
Publication of SE8305807D0 publication Critical patent/SE8305807D0/en
Priority to DE8484850307T priority patent/DE3476314D1/en
Priority to EP19840850307 priority patent/EP0143091B1/en
Publication of SE8305807L publication Critical patent/SE8305807L/en
Publication of SE439718B publication Critical patent/SE439718B/en

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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F13/00—Apparatus or processes for magnetising or demagnetising
    • H01F13/006—Methods and devices for demagnetising of magnetic bodies, e.g. workpieces, sheet material
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Resistance Heating (AREA)
  • General Induction Heating (AREA)

Abstract

The invention relates to an induction heater for heating annular articles, and includes a U-shaped transformer core (1) and a magnetic yoke which can be lifted from the transformer and upon which the article to be heated can be fitted. When heating the article, mains current is supplied to a primary core (2) on the transformer core, via a first switch (4). In accordance with the invention, the switch (4) is connected in parallel with a PTC-resistor (5, or 5 min ) which when the switch (4) is broken, upon completion of the heating period, first conducts the primary current, which gradually decreases to an extremely low value of about 10 mA, due to the heating of the PTC-resistor (5,5 min ), causing demagnetization of the heated article.
SE8305807A 1983-10-21 1983-10-21 INDUCTION HEATER FOR HEATING OF CIRCULATED PRODUCTS, SEPARATELY ROLLING STOCK SE439718B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE8305807A SE439718B (en) 1983-10-21 1983-10-21 INDUCTION HEATER FOR HEATING OF CIRCULATED PRODUCTS, SEPARATELY ROLLING STOCK
DE8484850307T DE3476314D1 (en) 1983-10-21 1984-10-18 An induction heater for heating annular articles, particularly roller-bearings
EP19840850307 EP0143091B1 (en) 1983-10-21 1984-10-18 An induction heater for heating annular articles, particularly roller-bearings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8305807A SE439718B (en) 1983-10-21 1983-10-21 INDUCTION HEATER FOR HEATING OF CIRCULATED PRODUCTS, SEPARATELY ROLLING STOCK

Publications (3)

Publication Number Publication Date
SE8305807D0 true SE8305807D0 (en) 1983-10-21
SE8305807L SE8305807L (en) 1985-04-22
SE439718B SE439718B (en) 1985-06-24

Family

ID=20353002

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8305807A SE439718B (en) 1983-10-21 1983-10-21 INDUCTION HEATER FOR HEATING OF CIRCULATED PRODUCTS, SEPARATELY ROLLING STOCK

Country Status (3)

Country Link
EP (1) EP0143091B1 (en)
DE (1) DE3476314D1 (en)
SE (1) SE439718B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU622056B2 (en) * 1989-12-18 1992-03-26 Feeney, Charles Heating of bearings and the like
US5248865A (en) * 1989-12-18 1993-09-28 Tyler George W Apparatus for induction heating of bearings or the like
EP2728965B1 (en) 2008-09-30 2017-08-16 Aktiebolaget SKF Bearing heater
CN102280237A (en) * 2010-06-11 2011-12-14 吴昌德 Method for adjusting resistance values
US9810113B2 (en) 2015-03-09 2017-11-07 The Boeing Company Engine lubrication heating system
CN105118606B (en) * 2015-09-11 2017-05-31 浙江大学 For the demagnetization circuit and method of online elimination electromagnetic current transducer remanent magnetism

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2942162A (en) * 1953-07-02 1960-06-21 Maximilian C Becker Demagnetizers and methods for demagnetizing
DE1097059B (en) * 1959-10-12 1961-01-12 Kugelfischer G Schaefer & Co Process for the electrical-inductive heating of metal rings
US3845442A (en) * 1971-02-03 1974-10-29 Nichicon Capacitor Ltd Automatic degaussing device
CH621659A5 (en) * 1978-01-18 1981-02-13 Greiner Electronic Ag Method and device for inductive heating electrically conductive workpieces
AT365028B (en) * 1978-04-11 1981-12-10 Vertina Anstalt METHOD AND SYSTEM FOR INDUCTIVE HEATING OF METAL WORKPIECES

Also Published As

Publication number Publication date
EP0143091A1 (en) 1985-05-29
SE439718B (en) 1985-06-24
EP0143091B1 (en) 1989-01-18
SE8305807L (en) 1985-04-22
DE3476314D1 (en) 1989-02-23

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