GB515227A - Improvements relating to electric furnaces - Google Patents

Improvements relating to electric furnaces

Info

Publication number
GB515227A
GB515227A GB15915/38A GB1591538A GB515227A GB 515227 A GB515227 A GB 515227A GB 15915/38 A GB15915/38 A GB 15915/38A GB 1591538 A GB1591538 A GB 1591538A GB 515227 A GB515227 A GB 515227A
Authority
GB
United Kingdom
Prior art keywords
electrodes
bath
feet
charge
furnaces
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
GB15915/38A
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.)
ELECTRIC RESISTANCE FURNACE CO
Original Assignee
ELECTRIC RESISTANCE FURNACE 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 ELECTRIC RESISTANCE FURNACE CO filed Critical ELECTRIC RESISTANCE FURNACE CO
Publication of GB515227A publication Critical patent/GB515227A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00Ohmic-resistance heating
    • H05B3/60Heating arrangements wherein the heating current flows through granular powdered or fluid material, e.g. for salt-bath furnace, electrolytic heating
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00Ohmic-resistance heating
    • H05B3/02Details
    • H05B3/03Electrodes

Landscapes

  • Furnace Details (AREA)
  • Electrolytic Production Of Metals (AREA)

Abstract

515,227. Electric furnaces. ELECTRIC RESISTANCE FURNACE CO., Ltd. May 27. 1938, No. 15915. Convention date, July 21, 1937. [Class 39 (iii)] In salt bath and other furnaces in which current is passed through the charge the electrodes 2 are sufficiently close to one another and the current density is sufficiently high to produce effective electromagnetic circulation of the bath. With a bath 3 feet wide, 6 feet long, and 2 feet deep, and a consumption of 150 kw.. the electrodes are 12 inches long and ¢ inch to 1¢ inches apart. Electrodes 6 inches long may be employed and current densities of 50-125 amperes per square inch are referred to. The electrodes are further apart at their upper ends than at their lower ends and are clamped between supports 3, 4 by bolts 5. They should preferably be formed of non-magnetic material above the bath and of material which will not react with the charge where submerged. Electrodes of austenitic alloys, stainless steel, or graphite, and a composite electrode with an upper part of nickel chromium iron and a lower part of chrome iron are referred to. The furnace may be started by arranging granular carbon between the electrodes, a cavity to receive the carbon being chipped out in the solid salt between the upper parts of the electrodes if necessary.
GB15915/38A 1937-07-21 1938-05-27 Improvements relating to electric furnaces Expired GB515227A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US515227XA 1937-07-21 1937-07-21

Publications (1)

Publication Number Publication Date
GB515227A true GB515227A (en) 1939-11-29

Family

ID=21971827

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15915/38A Expired GB515227A (en) 1937-07-21 1938-05-27 Improvements relating to electric furnaces

Country Status (1)

Country Link
GB (1) GB515227A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2501354A1 (en) * 1981-03-04 1982-09-10 Manville Service Corp ELECTRIC OVEN FOR FUSION OF NON-HOMOGENEOUS LOAD AND MIXING OF MOLTEN MATERIAL, AND METHOD FOR OPTIMIZING FUSION OF OXIDE AND MIXING OXIDE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2501354A1 (en) * 1981-03-04 1982-09-10 Manville Service Corp ELECTRIC OVEN FOR FUSION OF NON-HOMOGENEOUS LOAD AND MIXING OF MOLTEN MATERIAL, AND METHOD FOR OPTIMIZING FUSION OF OXIDE AND MIXING OXIDE

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