GB1415504A - Coreless induction furnace refining and melting apparatus and processes - Google Patents

Coreless induction furnace refining and melting apparatus and processes

Info

Publication number
GB1415504A
GB1415504A GB2492872A GB2492872A GB1415504A GB 1415504 A GB1415504 A GB 1415504A GB 2492872 A GB2492872 A GB 2492872A GB 2492872 A GB2492872 A GB 2492872A GB 1415504 A GB1415504 A GB 1415504A
Authority
GB
United Kingdom
Prior art keywords
power
frequency
source
induction furnace
processes
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
GB2492872A
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.)
APV Paralec Ltd
Original Assignee
APV Paralec Ltd
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 APV Paralec Ltd filed Critical APV Paralec Ltd
Priority to GB2492872A priority Critical patent/GB1415504A/en
Priority to DE2326515A priority patent/DE2326515A1/en
Priority to US363351A priority patent/US3867563A/en
Priority to LU67659A priority patent/LU67659A1/xx
Priority to FR7319081A priority patent/FR2189976B3/fr
Priority to IT24608/73A priority patent/IT987908B/en
Priority to NL7307339A priority patent/NL7307339A/xx
Priority to BE131546A priority patent/BE800063A/en
Priority to ES415256A priority patent/ES415256A1/en
Publication of GB1415504A publication Critical patent/GB1415504A/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
    • 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)
  • General Induction Heating (AREA)
  • Furnace Details (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

1415504 Supply circuits for induction furnaces A P V PARALEC Ltd 22 May 1973 [26 May 1972] 24928/72 Heading H2H A coreless induction furnace having a single inductor coil is operated at a high frequency and power to melt the charge and at a low frequency and power during refining, the furnace having either a single variable frequency source or a plurality of sources producing power at different frequencies, a plurality of power factor correction capacitor units, are associated with each power source in the latter case, and switching means for connecting the coil to selected capacitor units and to the power source. Power is supplied at frequencies in the range 50-10,000 Hz; when two sources only are used, the lower frequency is 50 Hz, the higher 500 Hz. A single frequency source may comprise a rotary type frequency converter or a static thyristor frequency inverter.
GB2492872A 1972-05-26 1972-05-26 Coreless induction furnace refining and melting apparatus and processes Expired GB1415504A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
GB2492872A GB1415504A (en) 1972-05-26 1972-05-26 Coreless induction furnace refining and melting apparatus and processes
DE2326515A DE2326515A1 (en) 1972-05-26 1973-05-24 CORNLESS INDUCTION FURNACE FOR THE SMELTING AND / OR REFINING OF METALS AND / OR METAL ALLOYS AND PROCESS FOR REFINING AND / OR MELTING OF METAL AND / OR METAL ALLOYS
US363351A US3867563A (en) 1972-05-26 1973-05-24 Refining apparatus and processes
LU67659A LU67659A1 (en) 1972-05-26 1973-05-24
FR7319081A FR2189976B3 (en) 1972-05-26 1973-05-25
IT24608/73A IT987908B (en) 1972-05-26 1973-05-25 EQUIPMENT AND PROCEDURE FOR THE MELTING AND REFINING OF METALS
NL7307339A NL7307339A (en) 1972-05-26 1973-05-25
BE131546A BE800063A (en) 1972-05-26 1973-05-25 IMPROVEMENTS RELATING TO REFINING AND MELTING PROCESSES AND APPARATUS,
ES415256A ES415256A1 (en) 1972-05-26 1973-05-25 Refining apparatus and processes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2492872A GB1415504A (en) 1972-05-26 1972-05-26 Coreless induction furnace refining and melting apparatus and processes

Publications (1)

Publication Number Publication Date
GB1415504A true GB1415504A (en) 1975-11-26

Family

ID=10219503

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2492872A Expired GB1415504A (en) 1972-05-26 1972-05-26 Coreless induction furnace refining and melting apparatus and processes

Country Status (9)

Country Link
US (1) US3867563A (en)
BE (1) BE800063A (en)
DE (1) DE2326515A1 (en)
ES (1) ES415256A1 (en)
FR (1) FR2189976B3 (en)
GB (1) GB1415504A (en)
IT (1) IT987908B (en)
LU (1) LU67659A1 (en)
NL (1) NL7307339A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3008972C2 (en) * 1980-03-08 1984-08-30 Vorwerk & Sohn Gmbh & Co Kg, 5600 Wuppertal Run-flat ring for pneumatic vehicle tires
US4525665A (en) * 1982-08-06 1985-06-25 Smalley Daniel S Induction furnace monitor
US4612498A (en) * 1982-08-06 1986-09-16 Smalley Daniel S Induction furnace fault locator
GB2232832B (en) * 1989-06-14 1993-11-10 Inductotherm Europ Induction Melting
NZ233841A (en) * 1990-05-29 1993-01-27 Transflux Holdings Ltd Continuous flow transformer water heater
FR2665249A1 (en) * 1990-07-26 1992-01-31 Dauphine Ets Bonmartin Laminoi Furnace for smelting by induction in a cold crucible
JPH07335380A (en) * 1994-06-04 1995-12-22 Horiba Ltd High frequency induction heating device, and its power supply circuit
US6163019A (en) * 1999-03-05 2000-12-19 Abb Metallurgy Resonant frequency induction furnace system using capacitive voltage division
DE19939778C2 (en) * 1999-08-21 2001-09-13 Schott Glas Device for melting and / or refining inorganic compounds

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3536983A (en) * 1967-12-12 1970-10-27 Inductotherm Corp Frequency multiplier and stirring circuit for an induction furnace

Also Published As

Publication number Publication date
IT987908B (en) 1975-03-20
FR2189976B3 (en) 1976-05-21
BE800063A (en) 1973-09-17
NL7307339A (en) 1973-11-28
FR2189976A1 (en) 1974-01-25
ES415256A1 (en) 1976-02-01
DE2326515A1 (en) 1973-12-06
US3867563A (en) 1975-02-18
LU67659A1 (en) 1973-07-26

Similar Documents

Publication Publication Date Title
GB1255789A (en) Improvements in or relating to high frequency power supply units
GB1415504A (en) Coreless induction furnace refining and melting apparatus and processes
GB1166789A (en) Means for Producing Unidirectional Flow of Molten Metal in a Container
GB1083421A (en) Improvements in "power control circuits"
GB1415634A (en) Power control means for a single phase induction melting or heating furnace
GB1555366A (en) Power control system for single phase induction melting orheating furnace
US3472941A (en) Coreless induction furnace and method of melting and stirring metals in this furnace
ES384021A1 (en) System for charging electric-arc furnaces
ZA724881B (en) Electrical circuit for controlling the energization of an inductive load
GB1297067A (en)
GB980934A (en) Circuit for controlling the power of inductive heating or melting equipment
ES431104A1 (en) Apparatus for movement of charge within an electric smelting furnace
ES406643A1 (en) Current and frequency control system for electrical discharge machining apparatus
FR2089340A5 (en) Electric furnace
JPS5276741A (en) Controlling method of highfrequency invertor
JPS51128749A (en) Method of induction heating for range
ES371776A1 (en) Furnaces with bipolar electrodes for the production of metals, particularly aluminum, through electrolysis of molten salts, equipped with auxiliary heating facilities
GB1153962A (en) An Inductor Arrangement For Surface Hardening Flanged Shafts
GB1316515A (en) Circuit arrangement for a timing mechanism for a cooking appliance
SU477562A1 (en) Single phase melting induction crucible furnace
EG11866A (en) Method and electric arc furnace for the continuous melting of iron rich material
FR2029177A5 (en) Furnace electricity supply device for under - slag smelting
FR2139916A1 (en) Electroslag remelting furnace - for preparing several ingots from one melt
GB1157813A (en) Inverters
JPS5314436A (en) Induction heating system

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees