GB612742A - Improvements in refractory bodies with a layer of lustrous carbon - Google Patents

Improvements in refractory bodies with a layer of lustrous carbon

Info

Publication number
GB612742A
GB612742A GB16549/46A GB1654946A GB612742A GB 612742 A GB612742 A GB 612742A GB 16549/46 A GB16549/46 A GB 16549/46A GB 1654946 A GB1654946 A GB 1654946A GB 612742 A GB612742 A GB 612742A
Authority
GB
United Kingdom
Prior art keywords
carbon
layer
chamber
bodies
tubular bodies
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
GB16549/46A
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.)
Philips Lamps Ltd
Koninklijke Philips NV
Original Assignee
Philips Lamps Ltd
Philips Gloeilampenfabrieken NV
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 Philips Lamps Ltd, Philips Gloeilampenfabrieken NV filed Critical Philips Lamps Ltd
Publication of GB612742A publication Critical patent/GB612742A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/20—Conductive material dispersed in non-conductive organic material
    • H01B1/24—Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon or silicon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Dispersion Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Furnace Details (AREA)

Abstract

612,742. Electric heating resistances. PHILIPS LAMPS, Ltd. May 31, 1946, No. 16549. Convention date, Feb. 20, 1942. [Class 39 (iii)] [Also in Group XXXVI] A layer of lustrous carbon is deposited on refractory insulating tubular bodies 6, more particularly in the manufacture of electrical resistances, by passing the tubular bodies 6 in succession through a cool-walled chamber 1 filled with a neutral gas and into which a cool gaseous carbon compound is introduced, the said bodies being simultaneously heated from within to the temperature necessary for the separation and deposition of carbon thereupon. The tubular bodies 6 slide on an electrically conducting rod 9, which has a contracted part 10 for ' localized heating and extends through the chamber 1 from an inlet pipe 4 to an outlet pipe 5. The pipes 4 and 5 are furnished with lateral branches 7 and 8 through which the neutral gas, e.g. nitrogen, is introduced into the chamber 1. A carbon layer having a resistance of approximately 2,400 ohms is stated to be deposited on a tubular body having an external diameter of 4 mms. and a length of 25 mms. by passing the body through nitrogen containing ¢ per cent of C2H2 and heating the body to a temperature of 1100‹ C. for one minute.
GB16549/46A 1942-02-20 1946-05-31 Improvements in refractory bodies with a layer of lustrous carbon Expired GB612742A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL612742X 1942-02-20

Publications (1)

Publication Number Publication Date
GB612742A true GB612742A (en) 1948-11-17

Family

ID=19788158

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16549/46A Expired GB612742A (en) 1942-02-20 1946-05-31 Improvements in refractory bodies with a layer of lustrous carbon

Country Status (1)

Country Link
GB (1) GB612742A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2958899A (en) * 1953-10-09 1960-11-08 Int Resistance Co Apparatus for deposition of solids from vapors
US3057325A (en) * 1959-04-01 1962-10-09 Western Electric Co Carbon deposition apparatus
US3164487A (en) * 1960-04-26 1965-01-05 Atomic Energy Authority Uk Methods of producing carbonimpregnated artefacts

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2958899A (en) * 1953-10-09 1960-11-08 Int Resistance Co Apparatus for deposition of solids from vapors
US3057325A (en) * 1959-04-01 1962-10-09 Western Electric Co Carbon deposition apparatus
US3164487A (en) * 1960-04-26 1965-01-05 Atomic Energy Authority Uk Methods of producing carbonimpregnated artefacts

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