GB1114550A - Improvements in method of making electrical heating elements - Google Patents

Improvements in method of making electrical heating elements

Info

Publication number
GB1114550A
GB1114550A GB54110/66A GB5411066A GB1114550A GB 1114550 A GB1114550 A GB 1114550A GB 54110/66 A GB54110/66 A GB 54110/66A GB 5411066 A GB5411066 A GB 5411066A GB 1114550 A GB1114550 A GB 1114550A
Authority
GB
United Kingdom
Prior art keywords
magnesium oxide
particles
heating elements
water bath
gas
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
GB54110/66A
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.)
General Electric Co
Original Assignee
General Electric 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 General Electric Co filed Critical General Electric Co
Publication of GB1114550A publication Critical patent/GB1114550A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/48—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F5/00—Compounds of magnesium
    • C01F5/02—Magnesia
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
    • H01B3/025—Other inorganic 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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49082—Resistor making
    • Y10T29/49087—Resistor making with envelope or housing
    • Y10T29/49089—Filling with powdered insulation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49082—Resistor making
    • Y10T29/49087—Resistor making with envelope or housing
    • Y10T29/49092—Powdering the insulation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Resistance Heating (AREA)

Abstract

1,114,550. Resistance heating elements. GENERAL ELECTRIC CO. 2 Dec., 1966 [3 Jan., 1966], No. 54110/66. Heading H5H. The magnesium oxide filling 12 of a metal sheathed heating element 11 is in the form of fused spherical particles (Fig. 3, not shown) and is made by introducing finely divided magnesium oxide into a plasma formed in a stream of gas in a radio-frequency induction torch, allowing the particles to fall through the plasma and then quenching them in a water bath. The gas must contain oxygen to a partial pressure of at least 0À1 atmosphere to prevent reduction of the oxide and is preferably two parts argon to one part oxygen. After recovery from the water bath, the particles of magnesium oxide are compacted around the heating coil by a swaging or rolling operation and then the metal sheath is fitted. This may be of lead for lowtemperature heaters or for high temperatures of " Inconel " (Registered Trade Mark).
GB54110/66A 1966-01-03 1966-12-02 Improvements in method of making electrical heating elements Expired GB1114550A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US518233A US3355802A (en) 1966-01-03 1966-01-03 Method of making electrical heating elements

Publications (1)

Publication Number Publication Date
GB1114550A true GB1114550A (en) 1968-05-22

Family

ID=24063125

Family Applications (1)

Application Number Title Priority Date Filing Date
GB54110/66A Expired GB1114550A (en) 1966-01-03 1966-12-02 Improvements in method of making electrical heating elements

Country Status (3)

Country Link
US (1) US3355802A (en)
FR (1) FR1505883A (en)
GB (1) GB1114550A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0195504A2 (en) * 1985-03-19 1986-09-24 Tateho Kagaku Kogyo Kabushiki Kaisha Electrically insulating filler for sheathed heaters

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2525441C3 (en) * 1975-06-07 1981-04-16 Dynamit Nobel Ag, 5210 Troisdorf Electrically insulating filling for an electric tubular heater
DE102021102893A1 (en) * 2021-02-08 2022-08-11 Türk & Hillinger GmbH Electrical heater and method of manufacturing an electrical heater

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2846537A (en) * 1954-03-03 1958-08-05 Wiegand Co Edwin L Electric heaters
US3007236A (en) * 1956-02-27 1961-11-07 Gen Electric Methods of making electric heating units
US3050833A (en) * 1958-05-19 1962-08-28 Thermal Mfg Company Method of making electrically insulated heating units
US3065436A (en) * 1960-07-12 1962-11-20 Mc Graw Edison Co Sheathed heating element
US3330034A (en) * 1962-04-13 1967-07-11 Westinghouse Electric Corp Method of forming an electrical heating element

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0195504A2 (en) * 1985-03-19 1986-09-24 Tateho Kagaku Kogyo Kabushiki Kaisha Electrically insulating filler for sheathed heaters
EP0195504A3 (en) * 1985-03-19 1987-01-14 Tateho Kagaku Kogyo Kabushiki Kaisha Electrically insulating filler for sheathed heaters
US4681862A (en) * 1985-03-19 1987-07-21 Tateho Kagaku Kogyo Kabushiki Kaisha Electrically insulating filler for sheathed heaters

Also Published As

Publication number Publication date
FR1505883A (en) 1967-12-15
DE1592116B2 (en) 1975-10-30
DE1592116A1 (en) 1970-10-29
US3355802A (en) 1967-12-05

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