GB1131064A - A method of making electrical resistance elements - Google Patents

A method of making electrical resistance elements

Info

Publication number
GB1131064A
GB1131064A GB50824/65A GB5082465A GB1131064A GB 1131064 A GB1131064 A GB 1131064A GB 50824/65 A GB50824/65 A GB 50824/65A GB 5082465 A GB5082465 A GB 5082465A GB 1131064 A GB1131064 A GB 1131064A
Authority
GB
United Kingdom
Prior art keywords
oxide
microns
metal oxide
dispersion
weight
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
GB50824/65A
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.)
Victory Engineering Corp
Original Assignee
Victory Engineering Corp
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 Victory Engineering Corp filed Critical Victory Engineering Corp
Publication of GB1131064A publication Critical patent/GB1131064A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/04—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/04—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient
    • H01C7/042—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient mainly consisting of inorganic non-metallic substances
    • H01C7/043—Oxides or oxidic compounds
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49082—Resistor making
    • Y10T29/49099—Coating resistive material on a base

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermistors And Varistors (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

1,131,064. Thermistors. VICTORY ENG. CORP. 30 Nov., 1965 [10 Feb., 1965], No. 50824/65. Heading H1K. Metal oxide thermistors are made by forming a dispersion of particles of metal oxide or metal oxide forming materials, having three distinct size-range fractions the largest of which has an average particle diameter not exceeding 1À5 microns, in a solution of a binder vehicle comprising a polymer having an hydroxyl content. The dispersion is deposited on a flat surface, levelled with a doctor blade and dried, and is then fired to sinter the oxide. The coherent flake so formed may then be cleaned by ultrasonic means, and may have electrodes applied to opposite faces, e.g. by vacuum evaporation of aluminium, gold, silver, platinum or other metals or alloys. In the preferred embodiment the metal oxide particles comprise a ground mixture of manganese oxide, nickel oxide and cobalt oxide, the three size fractions having average diameters of not more than 1À5 microns, 1À0 microns and 0À5 microns respectively and being present in equal amounts by weight. The binder vehicle preferably consists of volatile and non- volatile components. The non-volatile component comprises a polyvinyl butyral resin having a chain length of not more than 500 Š, an hydroxyl content of the order of 20% by weight and an acetate content of the order of 2À5% by weight, and a polyvinyl alcohol polymer also having a chain length not exceeding 500 Š. The volatile component preferably comprises a mixture of methyl alcohol, amyl acetate and toluol. After formation and levelling of the dispersion on an optical flat a suitably shaped blank may be cut and dried with absorbent paper. The blank is then covered by a refractory powder and fired. Alternatively the blank may be laid on a substrate of ceramic, metal or silicon, and cemented thereto by application of a solvent prior to firing.
GB50824/65A 1965-02-10 1965-11-30 A method of making electrical resistance elements Expired GB1131064A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US431695A US3359632A (en) 1965-02-10 1965-02-10 Method of making a thermistor

Publications (1)

Publication Number Publication Date
GB1131064A true GB1131064A (en) 1968-10-23

Family

ID=23713043

Family Applications (1)

Application Number Title Priority Date Filing Date
GB50824/65A Expired GB1131064A (en) 1965-02-10 1965-11-30 A method of making electrical resistance elements

Country Status (2)

Country Link
US (1) US3359632A (en)
GB (1) GB1131064A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106828021A (en) * 2017-03-03 2017-06-13 镇江海姆霍兹传热传动***有限公司 Auto heater temperature sensor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3444501A (en) * 1966-05-16 1969-05-13 Ibm Thermistor and method of fabrication
DE2348589C2 (en) * 1973-09-27 1982-04-01 Robert Bosch Gmbh, 7000 Stuttgart Oxide ceramic resistor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2633521A (en) * 1949-06-28 1953-03-31 Bell Telephone Labor Inc High-temperature coefficient resistor and method of making it
US2674583A (en) * 1949-12-23 1954-04-06 Bell Telephone Labor Inc High temperature coefficient resistors and methods of making them
GB874257A (en) * 1960-03-02 1961-08-02 Controllix Corp Improvements in or relating to circuit-breaker actuating mechanisms
US3019198A (en) * 1961-01-18 1962-01-30 Du Pont Thermistor composition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106828021A (en) * 2017-03-03 2017-06-13 镇江海姆霍兹传热传动***有限公司 Auto heater temperature sensor

Also Published As

Publication number Publication date
DE1590868B2 (en) 1973-01-25
DE1590868A1 (en) 1970-04-16
US3359632A (en) 1967-12-26

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