GB1279478A - Heating element - Google Patents

Heating element

Info

Publication number
GB1279478A
GB1279478A GB60101/69A GB6010169A GB1279478A GB 1279478 A GB1279478 A GB 1279478A GB 60101/69 A GB60101/69 A GB 60101/69A GB 6010169 A GB6010169 A GB 6010169A GB 1279478 A GB1279478 A GB 1279478A
Authority
GB
United Kingdom
Prior art keywords
segment
conductors
furnace
connecting member
silicon carbide
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
GB60101/69A
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.)
Unifrax 1 LLC
Original Assignee
Carborundum 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 Carborundum Co filed Critical Carborundum Co
Publication of GB1279478A publication Critical patent/GB1279478A/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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H05B3/148—Silicon, e.g. silicon carbide, magnesium silicide, heating transistors or diodes
    • 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
    • H05B3/62—Heating elements specially adapted for furnaces
    • H05B3/64—Heating elements specially adapted for furnaces using ribbon, rod, or wire heater
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

Landscapes

  • Resistance Heating (AREA)

Abstract

1279478 Electric furnace heating elements CARBORUNDUM CO 9 Dec 1969 [16 Dec 1968] 60101/69 Heading H5H A three-phase star connected heating element 10 or 20 for an electric furnace comprises three tubular conductors 11, 12, 13 or 21, 22, 23, respectively, joined together with their ends closed by a common connecting member 14 or 24, each conductor preferably being of uniform outside diameter composed, at least in part, of silicon carbide and having a low resistance segment 15, 25, and a high resistance segment 16, 26. Connecting member 14, 24, is of silicon carbide and has a resistivity lower than that of the tubular conductors. Projections 19 on member 14 close the ends of conductors 11, 12, 13. Segment 15 is of carbonaceous material impregnated with silicon and has an aluminium coating 18 for terminal connections. Pins 17 prevent the element 10 from slipping into the furnace. Segment 16 is large grain silicon carbide, of preferred resistivity of 0À09 to 1À10 ohm cm., while the preferred resistivity of segment 15 is 0À002 to 0À003 ohm cm. (at room temperature). The inner diameter of segment 15 is less than that of segment 16. Segment 26 of element 20 has a uniform helical slit 27 in its wall. The conductors 21, 22, 23, fit through holes in a frusto-conical plug 29<SP>1</SP> in the furnace upper wall. The length of the connecting member 24 or 14 is no greater than the distance between the extreme portions of conductors 21 and 23 or 11 and 13, so that the elements 20 or 10 can be inserted through a hole in the furnace wall of the smallest possible size.
GB60101/69A 1968-12-16 1969-12-09 Heating element Expired GB1279478A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US78385168A 1968-12-16 1968-12-16

Publications (1)

Publication Number Publication Date
GB1279478A true GB1279478A (en) 1972-06-28

Family

ID=25130591

Family Applications (1)

Application Number Title Priority Date Filing Date
GB60101/69A Expired GB1279478A (en) 1968-12-16 1969-12-09 Heating element

Country Status (6)

Country Link
US (1) US3518351A (en)
JP (1) JPS4914019B1 (en)
BE (1) BE743172A (en)
DE (1) DE1962584C3 (en)
FR (1) FR2030863A5 (en)
GB (1) GB1279478A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU582555B2 (en) * 1983-11-18 1989-04-06 Tba Industrial Products Limited Glass fibre products
GB2349785A (en) * 1999-12-06 2000-11-08 Kanthal Ltd Electrical ceramic rod heating element
WO2009147436A1 (en) 2008-06-06 2009-12-10 Sandvik Materials Technology Uk Limited Electrical resistance heating elements
US7759618B2 (en) 2003-07-16 2010-07-20 Sandvik Materials Technology Uk Limited Silicon carbide heating elements
DE102009057926A1 (en) * 2009-12-11 2011-06-16 Continental Automotive Gmbh Method and device for protecting a vehicle from theft
WO2019213561A1 (en) * 2018-05-03 2019-11-07 I Squared R Element Company, Inc. Heating element system, method for assembly and use

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2067967A5 (en) * 1969-11-24 1971-08-20 Anvar
JPS4922951B1 (en) * 1970-12-28 1974-06-12
US3805024A (en) * 1973-06-18 1974-04-16 Irex Corp Electrical infrared heater with a coated silicon carbide emitter
US3859500A (en) * 1973-09-17 1975-01-07 Squared R Element Company Inc Heating element
US3859501A (en) * 1973-09-17 1975-01-07 Squared R Element Company Inc Three-phase heating element
US4101724A (en) * 1976-06-30 1978-07-18 Brown Boveri Corporation Furnace conversion method and apparatus
US4080510A (en) * 1976-11-18 1978-03-21 Btu Engineering Corporation Silicon carbide heater
US4159415A (en) * 1977-01-21 1979-06-26 Klein Tools, Inc. Electric slot furnace
US4132886A (en) * 1977-10-14 1979-01-02 Norton Company Heating element
FR2480419A1 (en) * 1980-04-09 1981-10-16 Mgr Sa Fours INSTALLATION AND METHOD FOR MELTING OR MAINTAINING A METAL MATERIAL BY IMMERSION RESISTANT ELEMENT IN METAL
US4336442A (en) * 1981-01-12 1982-06-22 Ppg Industries, Inc. Combination radiation and convection heater with convection current directing means
GB8321028D0 (en) * 1983-08-04 1983-09-07 Atomic Energy Authority Uk Resistance heaters
DE3600019A1 (en) * 1985-02-11 1986-08-14 Scantherm A/S, Fredrikstad METHOD FOR SUPPLYING HEATING ENERGY TO A METAL MELT AND HEATING ELEMENT USED THEREOF
US5271032A (en) * 1992-01-14 1993-12-14 Phillips Terrance D Lid heater for glass melter
AT404923B (en) * 1995-09-05 1999-03-25 Vae Ag TEST RADIATOR FOR CALIBRATING INFRARED DETECTORS
SE524966C2 (en) * 2002-04-05 2004-11-02 Sandvik Ab Tubular electrical resistance element
CN104270836B (en) * 2014-10-23 2016-06-08 南车株洲电机有限公司 A kind of motor and integrated form three-phase electricity heater thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2268691A (en) * 1939-03-20 1942-01-06 Swindell Dressler Corp Electrically heated furnace
US2725032A (en) * 1951-12-21 1955-11-29 Siemens Planiawerke Ag Apparatus for siliconizing silicon carbide bodies
DE1056297B (en) * 1957-09-16 1959-04-30 Siemens Planiawerke Ag Three-legged, star-connected heating element, preferably made of silicon carbide, for electrical resistance ovens operated with three-phase current
US3345597A (en) * 1963-08-27 1967-10-03 Kanthal Ab Electric heating resistors

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU582555B2 (en) * 1983-11-18 1989-04-06 Tba Industrial Products Limited Glass fibre products
GB2349785A (en) * 1999-12-06 2000-11-08 Kanthal Ltd Electrical ceramic rod heating element
GB2349785B (en) * 1999-12-06 2001-03-28 Kanthal Ltd Electrical heating elements
WO2001043505A1 (en) * 1999-12-06 2001-06-14 Kanthal Limited Electrical heating elements for example made of silicon carbide
US6723969B1 (en) 1999-12-06 2004-04-20 Kanthal Limited Electrical heating elements for example made of silicon carbide
US7759618B2 (en) 2003-07-16 2010-07-20 Sandvik Materials Technology Uk Limited Silicon carbide heating elements
WO2009147436A1 (en) 2008-06-06 2009-12-10 Sandvik Materials Technology Uk Limited Electrical resistance heating elements
US10129931B2 (en) 2008-06-06 2018-11-13 Sandvik Materials Technology Uk Limited Electrical resistance heating element
DE102009057926A1 (en) * 2009-12-11 2011-06-16 Continental Automotive Gmbh Method and device for protecting a vehicle from theft
WO2019213561A1 (en) * 2018-05-03 2019-11-07 I Squared R Element Company, Inc. Heating element system, method for assembly and use

Also Published As

Publication number Publication date
DE1962584A1 (en) 1970-06-25
DE1962584C3 (en) 1981-04-16
DE1962584B2 (en) 1980-07-31
FR2030863A5 (en) 1970-11-13
BE743172A (en) 1970-06-15
US3518351A (en) 1970-06-30
JPS4914019B1 (en) 1974-04-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years