GB1026627A - Improvements in or relating to resistance materials,and electrical resistors made therefrom - Google Patents

Improvements in or relating to resistance materials,and electrical resistors made therefrom

Info

Publication number
GB1026627A
GB1026627A GB31925/63A GB3192563A GB1026627A GB 1026627 A GB1026627 A GB 1026627A GB 31925/63 A GB31925/63 A GB 31925/63A GB 3192563 A GB3192563 A GB 3192563A GB 1026627 A GB1026627 A GB 1026627A
Authority
GB
United Kingdom
Prior art keywords
frit
metal
mixture
glass
fired
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
GB31925/63A
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.)
International Resistance Co
Original Assignee
International Resistance 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 International Resistance Co filed Critical International Resistance Co
Publication of GB1026627A publication Critical patent/GB1026627A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/062—Glass compositions containing silica with less than 40% silica by weight
    • C03C3/064—Glass compositions containing silica with less than 40% silica by weight containing boron
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
    • C03C10/0054—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing PbO, SnO2, B2O3
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
    • C03C8/02—Frit compositions, i.e. in a powdered or comminuted form
    • 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
    • H01B1/14—Conductive material dispersed in non-conductive inorganic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
    • H01C17/06—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base
    • H01C17/065—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base by thick film techniques, e.g. serigraphy
    • H01C17/06506—Precursor compositions therefor, e.g. pastes, inks, glass frits
    • H01C17/06513—Precursor compositions therefor, e.g. pastes, inks, glass frits characterised by the resistive component
    • H01C17/0652—Precursor compositions therefor, e.g. pastes, inks, glass frits characterised by the resistive component containing carbon or carbides

Abstract

A vitreous enamel comprises by weight 25-90% of a mixture of finely divided tungsten carbide and finely divided tungsten metal and 75-10% glass frit. The material may be applied to a body and fired thereon to form an electrical resistor. The mixture preferably consists of one part W metal per four parts tungsten carbide. The frit may be a borosilicate glass, e.g. of Pb, Bi, Cd, Ca or other alkaline earth metal. The batch ingredients may be e.g. boric acid, flint, and barium carbonate. The frit, carbide, and metal are preferably ball-milled to 1-2 m , mixed together, e.g. by ball-milling in water or an organic medium, e.g. butyl carbitol acetate with or without toluol. The material may be applied to the body by brushing, dipping, spraying or screen stencil application. The body and coating are then fired at 750-1000 DEG C., preferably in an inert atmosphere, e.g. Ar, He, N2 or a mixture of N2 and H2. The body may be e.g. glass, ceramic, porcelain, refractory, barium titanate, or steatite. A frit exemplified consists by weight of 48% BaO, 8% CaO, 23% B2O3 and 21% SiO2.
GB31925/63A 1962-08-28 1963-08-13 Improvements in or relating to resistance materials,and electrical resistors made therefrom Expired GB1026627A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US220068A US3180841A (en) 1962-08-28 1962-08-28 Resistance material and resistor made therefrom

Publications (1)

Publication Number Publication Date
GB1026627A true GB1026627A (en) 1966-04-20

Family

ID=22821910

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31925/63A Expired GB1026627A (en) 1962-08-28 1963-08-13 Improvements in or relating to resistance materials,and electrical resistors made therefrom

Country Status (4)

Country Link
US (1) US3180841A (en)
DE (1) DE1465704B2 (en)
DK (1) DK109098C (en)
GB (1) GB1026627A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2237802A (en) * 1989-11-08 1991-05-15 Stoves Ltd Improvements in or relating to compositions for vitreous enamelling and to methods of preparing and applying such compositions

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1006417A (en) * 1964-04-14 1965-09-29 Standard Telephones Cables Ltd Ceramic-metal seals
US3509072A (en) * 1968-02-13 1970-04-28 Trw Inc Non-linear,voltage variable electrical resistor
US3916366A (en) * 1974-10-25 1975-10-28 Dale Electronics Thick film varistor and method of making the same
US4057777A (en) * 1975-11-19 1977-11-08 Trw Inc. Termination for electrical resistor and method of making same
US4053866A (en) * 1975-11-24 1977-10-11 Trw Inc. Electrical resistor with novel termination and method of making same
US4137519A (en) * 1977-10-25 1979-01-30 Trw, Inc. Resistor material, resistor made therefrom and method of making the same
US4293838A (en) * 1979-01-29 1981-10-06 Trw, Inc. Resistance material, resistor and method of making the same
US4286251A (en) * 1979-03-05 1981-08-25 Trw, Inc. Vitreous enamel resistor and method of making the same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1105070A (en) * 1913-03-31 1914-07-28 Gage Electric Company Artificial resistance.
US1246165A (en) * 1914-05-16 1917-11-13 Charles Ruzicka Electrical-resistance material.
US2579366A (en) * 1948-11-12 1951-12-18 Cutler Hammer Inc Control circuit for multiple high resistance ignition electrode
US2855491A (en) * 1954-06-30 1958-10-07 Gen Electric Metal-ceramic electrical resistors
US2851376A (en) * 1956-04-25 1958-09-09 Goeppner Kaiserslautern Eisen Enamelling process
GB874257A (en) * 1960-03-02 1961-08-02 Controllix Corp Improvements in or relating to circuit-breaker actuating mechanisms

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2237802A (en) * 1989-11-08 1991-05-15 Stoves Ltd Improvements in or relating to compositions for vitreous enamelling and to methods of preparing and applying such compositions
GB2237802B (en) * 1989-11-08 1994-06-01 Stoves Ltd Improvements in or relating to methods of vitreous enamelling

Also Published As

Publication number Publication date
DE1465704B2 (en) 1971-04-08
DK109098C (en) 1968-03-18
DE1465704A1 (en) 1969-10-09
US3180841A (en) 1965-04-27

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