GB1005629A - Electric heating elements for carburizing atmospheres - Google Patents

Electric heating elements for carburizing atmospheres

Info

Publication number
GB1005629A
GB1005629A GB21012/64A GB2101264A GB1005629A GB 1005629 A GB1005629 A GB 1005629A GB 21012/64 A GB21012/64 A GB 21012/64A GB 2101264 A GB2101264 A GB 2101264A GB 1005629 A GB1005629 A GB 1005629A
Authority
GB
United Kingdom
Prior art keywords
electric heating
heating elements
tubes
electric
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
GB21012/64A
Inventor
Donald Beggs
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.)
BRITISH FURNACES Ltd
Original Assignee
BRITISH FURNACES 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 BRITISH FURNACES Ltd filed Critical BRITISH FURNACES Ltd
Publication of GB1005629A publication Critical patent/GB1005629A/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
    • H05B3/62—Heating elements specially adapted for furnaces
    • H05B3/64—Heating elements specially adapted for furnaces using ribbon, rod, or wire heater
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/20—Carburising
    • C23C8/22—Carburising of ferrous surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D11/00—Arrangement of elements for electric heating in or on furnaces
    • F27D11/02—Ohmic resistance heating
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Furnace Details (AREA)

Abstract

1,005,629. Electric furnaces. BRITISH FURNACES Ltd. May 21, 1964 [Oct. 21, 1963], No. 21012/64. Heading H5H. An electric carburizing furnace for case hardening articles on a conveyer 25 has resistive elements 32 of tubular form, the insides of which are subjected to decarburizing conditions. This may be by circulating a fluid through the tubes, e.g. steam, or air with or without the products of combustion of natural gas, preferably at furnace temperature, or the tubes may be packed with a solid such as iron oxide. The alternative use of plate type elements is mentioned.
GB21012/64A 1963-10-21 1964-05-21 Electric heating elements for carburizing atmospheres Expired GB1005629A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US317613A US3259527A (en) 1963-10-21 1963-10-21 Electric heating elements for carburizing atmospheres

Publications (1)

Publication Number Publication Date
GB1005629A true GB1005629A (en) 1965-09-22

Family

ID=23234476

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21012/64A Expired GB1005629A (en) 1963-10-21 1964-05-21 Electric heating elements for carburizing atmospheres

Country Status (3)

Country Link
US (1) US3259527A (en)
FR (1) FR1412122A (en)
GB (1) GB1005629A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983003517A1 (en) * 1982-04-02 1983-10-13 Haglund, John, Helge Suspension device for resistor elements in furnaces

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1533964B2 (en) * 1967-03-23 1975-11-13 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt Oven for surface treatment of workpieces in protective or carrier gas
DE2206816C3 (en) * 1972-02-12 1981-12-10 Früngel, Frank, Dr.-Ing., Zürich Device for producing extremely fine-grained metallic surface structures
US3985946A (en) * 1975-02-18 1976-10-12 Sola Basic Industries, Inc. Removable heating element for high temperature furnaces
JPS5354136A (en) * 1976-10-28 1978-05-17 Ishikawajima Harima Heavy Ind Vacuum carburizing furnace
DE2756402C2 (en) * 1977-12-17 1982-11-04 Bulten-Kanthal AB, 73401 Hallstahammar Heat treatment furnace
US4299364A (en) * 1978-08-07 1981-11-10 General Signal Corporation Insulating module including a heater element support
US4387871A (en) * 1978-08-07 1983-06-14 General Signal Corporation Insulating module including a heater element support
US4597807A (en) * 1984-11-13 1986-07-01 Air Products And Chemicals, Inc. Accelerated carburizing method with discrete atmospheres
US5324415A (en) * 1989-06-09 1994-06-28 Blumenthal Robert N Apparatus and systems for analyzing a sample of treatment atmosphere having a carbon potential
US4966348A (en) * 1989-06-30 1990-10-30 Lindberg Corp. Method and apparatus for monitoring atmosphere in furnaces

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2768277A (en) * 1956-10-23 Electric furnace
US3179735A (en) * 1965-04-20 Resistance heated furnace
US2359157A (en) * 1943-05-22 1944-09-26 Westinghouse Electric & Mfg Co Gas-carburizing furnace
US2621218A (en) * 1951-06-06 1952-12-09 Dow Chemical Co Electric graphitizing furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983003517A1 (en) * 1982-04-02 1983-10-13 Haglund, John, Helge Suspension device for resistor elements in furnaces

Also Published As

Publication number Publication date
FR1412122A (en) 1965-09-24
US3259527A (en) 1966-07-05

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