FR2417736A1 - CREUSET INDUCTION OVEN - Google Patents

CREUSET INDUCTION OVEN

Info

Publication number
FR2417736A1
FR2417736A1 FR7904026A FR7904026A FR2417736A1 FR 2417736 A1 FR2417736 A1 FR 2417736A1 FR 7904026 A FR7904026 A FR 7904026A FR 7904026 A FR7904026 A FR 7904026A FR 2417736 A1 FR2417736 A1 FR 2417736A1
Authority
FR
France
Prior art keywords
creuset
impedance
certain
power factor
induction oven
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.)
Granted
Application number
FR7904026A
Other languages
French (fr)
Other versions
FR2417736B1 (en
Inventor
Yngve Sundberg
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 FR2417736A1 publication Critical patent/FR2417736A1/en
Application granted granted Critical
Publication of FR2417736B1 publication Critical patent/FR2417736B1/fr
Granted 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • General Induction Heating (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Furnace Details (AREA)

Abstract

a. Four. b. Il comprend des dispositifs de mesure du facteur de puissance ou de l'impédance du four pendant son fonctionnement, ces dispositifs étant connectés à un transducteur émettant un signal quand le facteur de puissance ou quand l'impédance pendant la fusion est reste constant à une certaine valeur et n'a pas changé pendant une certaine durée réglable de manière convenable et/ou s'est abaissé à une certaine valeur réglable, le transducteur à signaux étant aussi complété, le cas échéant, par un dispositif pour diminuer la puissance quand l'un des signaux a été émis. c. Métallurgie.at. Oven. b. It includes devices for measuring the power factor or the impedance of the furnace during its operation, these devices being connected to a transducer emitting a signal when the power factor or when the impedance during melting has remained constant at a certain level. value and has not changed for a certain period of time which is suitably adjustable and / or has fallen to a certain adjustable value, the signal transducer also being supplemented, if necessary, by a device for reducing the power when the one of the signals has been emitted. vs. Metallurgy.

FR7904026A 1978-02-20 1979-02-16 CREUSET INDUCTION OVEN Granted FR2417736A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7801904A SE415127B (en) 1978-02-20 1978-02-20 WANT TO CHECK AND REGULATE THE OPERATION OF AN INDUCTION DEVICE MOTOD WITH ALTERNATING CURRENT AT FREQUENCY

Publications (2)

Publication Number Publication Date
FR2417736A1 true FR2417736A1 (en) 1979-09-14
FR2417736B1 FR2417736B1 (en) 1984-03-30

Family

ID=20334035

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7904026A Granted FR2417736A1 (en) 1978-02-20 1979-02-16 CREUSET INDUCTION OVEN

Country Status (6)

Country Link
JP (1) JPS54126611A (en)
DE (1) DE2904516C2 (en)
FR (1) FR2417736A1 (en)
GB (1) GB2017923B (en)
IT (1) IT1118379B (en)
SE (1) SE415127B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0087099A1 (en) * 1982-02-23 1983-08-31 Asea Ab Temperature control method for a channel induction furnace

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04122848A (en) * 1990-09-14 1992-04-23 Shinko Electric Co Ltd Detecting apparatus of time point of complete melting of metal in induction melting furnace
DE4322463A1 (en) * 1993-07-06 1995-01-12 Leybold Durferrit Gmbh Early-warning device for induction melting furnaces

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB650892A (en) * 1948-02-20 1951-03-07 Birlec Ltd Improvements in or relating to means for controlling the power-factor of induction heaters and similar appliances
GB671140A (en) * 1949-03-19 1952-04-30 Dow Corning Ltd Organo-silicon co-polymers and their manufacture
DE1057260B (en) * 1955-05-27 1959-05-14 Bbc Brown Boveri & Cie Method and device for monitoring induction crucible furnaces with regard to changes in crucible wall thickness
GB919850A (en) * 1958-06-23 1963-02-27 Sangamo Weston Improvements in or relating to power factor transducers
DE2042742A1 (en) * 1970-08-28 1972-04-20 Norddeutsche Affinerie Induction crucible oven - wall condition supervision by electric resistance circuit and wheatstone bridge

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1183613B (en) * 1958-05-16 1964-12-17 British Iron Steel Research Program control for electric arc furnaces
DE1132654B (en) * 1959-04-08 1962-07-05 Bbc Brown Boveri & Cie Measuring arrangement for measuring the induced power in induction ovens or other inductive heating devices

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB650892A (en) * 1948-02-20 1951-03-07 Birlec Ltd Improvements in or relating to means for controlling the power-factor of induction heaters and similar appliances
GB671140A (en) * 1949-03-19 1952-04-30 Dow Corning Ltd Organo-silicon co-polymers and their manufacture
DE1057260B (en) * 1955-05-27 1959-05-14 Bbc Brown Boveri & Cie Method and device for monitoring induction crucible furnaces with regard to changes in crucible wall thickness
GB919850A (en) * 1958-06-23 1963-02-27 Sangamo Weston Improvements in or relating to power factor transducers
DE2042742A1 (en) * 1970-08-28 1972-04-20 Norddeutsche Affinerie Induction crucible oven - wall condition supervision by electric resistance circuit and wheatstone bridge

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/74 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0087099A1 (en) * 1982-02-23 1983-08-31 Asea Ab Temperature control method for a channel induction furnace

Also Published As

Publication number Publication date
IT1118379B (en) 1986-02-24
GB2017923B (en) 1983-02-02
GB2017923A (en) 1979-10-10
JPS54126611A (en) 1979-10-02
IT7967357A0 (en) 1979-02-19
FR2417736B1 (en) 1984-03-30
SE415127B (en) 1980-09-08
DE2904516C2 (en) 1983-12-08
DE2904516A1 (en) 1979-08-23
SE7801904L (en) 1979-08-21

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Legal Events

Date Code Title Description
ST Notification of lapse