GB1068699A - Electrical resistor - Google Patents

Electrical resistor

Info

Publication number
GB1068699A
GB1068699A GB37330/65A GB3733065A GB1068699A GB 1068699 A GB1068699 A GB 1068699A GB 37330/65 A GB37330/65 A GB 37330/65A GB 3733065 A GB3733065 A GB 3733065A GB 1068699 A GB1068699 A GB 1068699A
Authority
GB
United Kingdom
Prior art keywords
resistive body
resistors
temperature
curing
resistive
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
GB37330/65A
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.)
Airco Inc
Original Assignee
Air Reduction Co Inc
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 Air Reduction Co Inc filed Critical Air Reduction Co Inc
Publication of GB1068699A publication Critical patent/GB1068699A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01B1/18—Conductive material dispersed in non-conductive inorganic material the conductive material comprising carbon-silicon compounds, carbon or silicon
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
    • 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
    • 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
    • H01C17/06573—Precursor compositions therefor, e.g. pastes, inks, glass frits characterised by the permanent binder
    • H01C17/06586—Precursor compositions therefor, e.g. pastes, inks, glass frits characterised by the permanent binder composed of organic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
    • H01C17/30—Apparatus or processes specially adapted for manufacturing resistors adapted for baking
    • 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
    • H01C7/001—Mass resistors
    • 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
    • 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
    • Y10T29/49087—Resistor making with envelope or housing

Abstract

1,068,699. Resistors. AIR REDUCTION CO. Inc. Sept. 1, 1965 [Nov. 10, 1964], No. 37330/65. Heading H1S. A method of making an electrical resistive body comprises mixing together 15-50% by weight solid silicone resin binder (e.g. a heat condensable alkyl aryl or an alkyl silicone), 50-85% filler (including pulverized silica, mica, wollastonite, asbestos fines, or glass fibres, or mixtures of these), and up to 10% powdered electrically conductive material (e.g. calcined carbon black or graphite); shaping the resistive body by moulding; and curing the resistive body at a temperature between 400‹ C. and 525‹ C. for a period of three to fifteen minutes. The body may be cured by baking in an oven, by infra-red radiation, or by microwave, and possibly in a nitrogen atmosphere. The body may be moulded under a pressure of 20,000 lbs./sq. in. The mixture may also include up to 1% catalyst to promote silicone polymerization, e.g. quaternary ammonium compound, quaternary@amine, hexamethylenetetramine, hexamethylenetetramine ethiodide, boron trifluoride, dicyandiamide, cobalt and manganese driers, or arsenic pentoxide. The mixture may also include an internal lubricant, e.g. zinc stearate, carnauba wax, to facilitate ejection from the mould. After or during the moulding process, and before curing, the resistive body may be precured at a temperature between 150‹ and 185‹ C. for a period of fifteen to thirty minutes. The resistor having the resistive body described above may be leadless with metal ends (Fig. 2) or it may have wire leads embedded in the central resistive body which is covered with an insulating jacket (Figs. 3, 4). An apparatus for curing the resistors at a temperature of 400-525‹ C., Fig. 1, includes an endless metal conveyer belt 40, driven by a motor 22 which drives a speed reducer 24, and having openings 60 to receive the resistors 62, and two infra-red radiant heaters 64 and 66 joined by walls 67 to provide a nitrogen funnel.
GB37330/65A 1964-11-10 1965-09-01 Electrical resistor Expired GB1068699A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US410091A US3382574A (en) 1964-11-10 1964-11-10 Method of making an electrical resistor

Publications (1)

Publication Number Publication Date
GB1068699A true GB1068699A (en) 1967-05-10

Family

ID=23623171

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37330/65A Expired GB1068699A (en) 1964-11-10 1965-09-01 Electrical resistor

Country Status (11)

Country Link
US (1) US3382574A (en)
AT (1) AT270806B (en)
BE (1) BE667242A (en)
DE (1) DE1465230A1 (en)
DK (1) DK116008B (en)
ES (1) ES317407A1 (en)
FR (1) FR1440529A (en)
GB (1) GB1068699A (en)
LU (1) LU49129A1 (en)
NL (1) NL6513572A (en)
SE (1) SE314428B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3445554A (en) * 1966-03-11 1969-05-20 Dow Corning Manufacture of silicon carbide ribbons
US3676925A (en) * 1970-07-28 1972-07-18 Matsushita Electric Ind Co Ltd Method for making molded carbon composition resistors
US3689618A (en) * 1970-08-05 1972-09-05 Air Reduction Use of an unadvanced silicone resin binder in resistor manufacture
US3680027A (en) * 1971-04-19 1972-07-25 Avnet Inc Ignition cable
US3808678A (en) * 1972-08-16 1974-05-07 Matsushita Electric Ind Co Ltd Method of making pressure-sensitive resistor element
US4101862A (en) * 1976-11-19 1978-07-18 K.K. Tokai Rika Denki Seisakusho Current limiting element for preventing electrical overcurrent
US4243624A (en) * 1979-05-21 1981-01-06 Exxon Research & Engineering Co. Method of making cathodes derived from ammonium-metal-chalcogen compounds
US4511524A (en) * 1981-02-23 1985-04-16 Champion Spark Plug Company Carbon resistor and method for producing same
US4433092A (en) * 1981-03-09 1984-02-21 Champion Spark Plug Company Green ceramic of lead-free glass, conductive carbon, silicone resin and AlPO4, useful, after firing, as an electrical resistor
US4606117A (en) * 1983-05-13 1986-08-19 Tdk Corporation Apparatus for automatically mounting chip type circuit elements on printed circuit boards
DE9103353U1 (en) * 1991-03-19 1991-06-20 Sillner, Georg, 8411 Zeitlarn, De
JP2008513572A (en) * 2004-09-17 2008-05-01 ダウ・コーニング・コーポレイション Siloxane composition, aggregate, and method for producing aggregate

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2526059A (en) * 1947-02-13 1950-10-17 Allen Bradley Co Fixed electrical resistor
US2529830A (en) * 1948-05-13 1950-11-14 Boston Woven Hose & Rubber Co Vulcanizing method and apparatus
US2795680A (en) * 1952-05-16 1957-06-11 Sprague Electric Co Printed resistors and inks
US3037266A (en) * 1957-01-30 1962-06-05 Allen Bradley Co Method for making sealed resistors
US3022213A (en) * 1958-02-13 1962-02-20 Michigan Res Lab Inc Conductive web and method of making same
US3003975A (en) * 1958-11-26 1961-10-10 Myron A Coler Conductive plastic composition and method of making the same

Also Published As

Publication number Publication date
DK116008B (en) 1969-12-01
FR1440529A (en) 1966-05-27
AT270806B (en) 1969-05-12
SE314428B (en) 1969-09-08
BE667242A (en) 1965-08-13
DE1465230A1 (en) 1969-04-03
ES317407A1 (en) 1966-05-16
LU49129A1 (en) 1965-09-21
US3382574A (en) 1968-05-14
NL6513572A (en) 1966-05-11

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