GB893724A - Improvements in or relating to infra-red radiation heating elements - Google Patents

Improvements in or relating to infra-red radiation heating elements

Info

Publication number
GB893724A
GB893724A GB31085/58A GB3108558A GB893724A GB 893724 A GB893724 A GB 893724A GB 31085/58 A GB31085/58 A GB 31085/58A GB 3108558 A GB3108558 A GB 3108558A GB 893724 A GB893724 A GB 893724A
Authority
GB
United Kingdom
Prior art keywords
alumina
infra
gamma
tube
red
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
GB31085/58A
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.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil SA
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 CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Publication of GB893724A publication Critical patent/GB893724A/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
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/025—Mixtures of materials with different sizes
    • 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
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Resistance Heating (AREA)

Abstract

An infra-red transparent wall for an infra-red radiating heating element consists essentially of a sintered alumina or titanium oxide in grains smaller than 0,1 microns. In Example 1, a tube for housing a metal heating resistance is formed from gamma-alumina of mean grain size 0,02 to 0,03 microns by mixing with a mixture of turpentine oil and ceresine, extruding to form a tube, and sintering at 1100 DEG -1200 DEG C., the gamma-alumina being changed into alpha-alumina. The tube is sprayed with an aqueous suspension of an enamel powder containing at least 40% Pb, at least 20% SiO2, about 10% BrO3, and about 20% SnO and Al2O3, dried and fired at 500-1000 DEG C. The heater resistance is then inserted. In Example 2, a wall to be placed in front of an infra-red energy source consisting of a perforated porous ceramic refractory plate forming a gas burner is prepared by pressing a mixture of gamma-alumina and polyvinyl alcohol, sintering at 1100-1200 DEG C., and preferably enamelling. Specification 798,450 is referred to.
GB31085/58A 1957-10-18 1958-09-29 Improvements in or relating to infra-red radiation heating elements Expired GB893724A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR893724X 1957-10-18

Publications (1)

Publication Number Publication Date
GB893724A true GB893724A (en) 1962-04-11

Family

ID=9390235

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31085/58A Expired GB893724A (en) 1957-10-18 1958-09-29 Improvements in or relating to infra-red radiation heating elements

Country Status (1)

Country Link
GB (1) GB893724A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2157821A (en) * 1984-03-19 1985-10-30 Admiral Dev Co Radiant heaters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2157821A (en) * 1984-03-19 1985-10-30 Admiral Dev Co Radiant heaters

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