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GB1208718A - Method of producing a strong, permeable, flexible micaceous insulation - Google Patents

Method of producing a strong, permeable, flexible micaceous insulation

Info

Publication number
GB1208718A
GB1208718A GB1214169A GB1214169A GB1208718A GB 1208718 A GB1208718 A GB 1208718A GB 1214169 A GB1214169 A GB 1214169A GB 1214169 A GB1214169 A GB 1214169A GB 1208718 A GB1208718 A GB 1208718A
Authority
GB
United Kingdom
Prior art keywords
micaceous
insulation
polyester
thermoplastic
reel
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
GB1214169A
Inventor
Dow Albert Rogers
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.)
CBS Corp
Original Assignee
Westinghouse Electric 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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Priority to GB1214169A priority Critical patent/GB1208718A/en
Publication of GB1208718A publication Critical patent/GB1208718A/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
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/48—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials
    • H01B3/50—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials fabric
    • 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
    • H01B3/04—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances mica

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Laminated Bodies (AREA)

Abstract

1,208,718. Micaceous laminates. WESTING- HOUSE ELECTRIC CORP. 7 March, 1969, No. 12141/69. Heading B5N. [Also in Division H1] A method of producing a strong, flexible, permeable micaceous insulation from a sheet or ribbon of micaceous material and a fibrous reinforcing substrate or backing comprises the steps of disposing a heat-shrinkable thermoplastic film 11, Fig. 1, between said micaceous sheet 10 and substrate 12 to form a composite and heating the composite to form voids 13 in the thermoplastic film whose thickness lies between 0À12 to 0À85 mils. The thermoplastic film may be polyester, polystyrene, polycarbonate, regenerated cellulose, ionomeric, α-olefinacid copolymer resins, polyamide, polyethylene, polypropylene, polymeric fluorinated ethylene, polyvinyl alcohol, polyvinyl chloride, polyvinyl fluoride, phenoxy resin or polysulphone, while the substrate may be cellulose, asbestos, glass, polyacrylate or polyester fibres, e.g. as paper, fibrous web or woven cloth. If a polyester film is used, then a backing with a higher melting point, such as an open weave glass cloth, must be used, while with a lower melting point film, a polyester fibre can be used. The composite insulation comprising mica paper from reel 21, Fig. 2, thermoplastic sheet from reel 20 and fibrous backing from reel 19 is passed over a heated roller 26 driven by a motor 28 after mica alone or with the thermoplastic sheath has been pre-heated at 25. A vent hood 29 is used. The insulation can be used for insulation of coils, conductors and electrical machine windings.
GB1214169A 1969-03-07 1969-03-07 Method of producing a strong, permeable, flexible micaceous insulation Expired GB1208718A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1214169A GB1208718A (en) 1969-03-07 1969-03-07 Method of producing a strong, permeable, flexible micaceous insulation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1214169A GB1208718A (en) 1969-03-07 1969-03-07 Method of producing a strong, permeable, flexible micaceous insulation

Publications (1)

Publication Number Publication Date
GB1208718A true GB1208718A (en) 1970-10-14

Family

ID=9999099

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1214169A Expired GB1208718A (en) 1969-03-07 1969-03-07 Method of producing a strong, permeable, flexible micaceous insulation

Country Status (1)

Country Link
GB (1) GB1208718A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0081154A1 (en) * 1981-12-02 1983-06-15 Alsthom Tape winding process for primary insulation of conductors
FR2556443A1 (en) * 1983-12-08 1985-06-14 Chicago Bridge & Iron Co RESERVOIR FOR STORING LIQUIDS AT CRYOGENIC TEMPERATURES, FILLING MATERIAL FOR SUCH A RESERVOIR AND METHOD OF MANUFACTURING SUCH A MATERIAL
CH696992A5 (en) * 2003-11-17 2008-02-29 Schweizerische Isola Werke Ag Mica tape, useful for insulating windings of rotating electric machines, comprises carrier, mica layer and adhesive comprising copolymer, produced from ethylene and/or alpha-olefin, and olefin comonomer
WO2009100471A1 (en) * 2008-02-11 2009-08-20 Isovolta Ag Method for producing mica-containing material and insulating material comprising said material
BE1020511A4 (en) * 2010-11-10 2013-12-03 Cogebi S A TIRE BASED ON MICA.
EP3389058A1 (en) * 2017-04-10 2018-10-17 Siemens Aktiengesellschaft Corona shielding band for electric high voltage machine
US10774244B2 (en) * 2015-07-17 2020-09-15 Siemens Aktiengesellschaft Solid insulation material
US10778058B2 (en) * 2016-03-09 2020-09-15 Siemens Aktiengesellschaft Solid insulation material
WO2024120545A1 (en) * 2023-01-10 2024-06-13 天蔚蓝电驱动科技(江苏)有限公司 Corona-resistant composite sheet for electric motor of new energy vehicle, and preparation method therefor
CN118342768A (en) * 2024-05-20 2024-07-16 苏州骏鼎达新材料科技有限公司 Composite heat insulation sleeve and manufacturing equipment and manufacturing method thereof

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0081154A1 (en) * 1981-12-02 1983-06-15 Alsthom Tape winding process for primary insulation of conductors
FR2556443A1 (en) * 1983-12-08 1985-06-14 Chicago Bridge & Iron Co RESERVOIR FOR STORING LIQUIDS AT CRYOGENIC TEMPERATURES, FILLING MATERIAL FOR SUCH A RESERVOIR AND METHOD OF MANUFACTURING SUCH A MATERIAL
CH696992A5 (en) * 2003-11-17 2008-02-29 Schweizerische Isola Werke Ag Mica tape, useful for insulating windings of rotating electric machines, comprises carrier, mica layer and adhesive comprising copolymer, produced from ethylene and/or alpha-olefin, and olefin comonomer
WO2009100471A1 (en) * 2008-02-11 2009-08-20 Isovolta Ag Method for producing mica-containing material and insulating material comprising said material
BE1020511A4 (en) * 2010-11-10 2013-12-03 Cogebi S A TIRE BASED ON MICA.
US10774244B2 (en) * 2015-07-17 2020-09-15 Siemens Aktiengesellschaft Solid insulation material
US10778058B2 (en) * 2016-03-09 2020-09-15 Siemens Aktiengesellschaft Solid insulation material
CN110692111A (en) * 2017-04-10 2020-01-14 西门子股份公司 Corona Guard Strips for High Voltage Motors
WO2018188843A1 (en) * 2017-04-10 2018-10-18 Siemens Aktiengesellschaft Corona protection tape for electrical high-voltage machine
EP3389058A1 (en) * 2017-04-10 2018-10-17 Siemens Aktiengesellschaft Corona shielding band for electric high voltage machine
CN110692111B (en) * 2017-04-10 2021-07-06 弗兰德有限公司 Corona Guard Strips for High Voltage Motors
WO2024120545A1 (en) * 2023-01-10 2024-06-13 天蔚蓝电驱动科技(江苏)有限公司 Corona-resistant composite sheet for electric motor of new energy vehicle, and preparation method therefor
CN118342768A (en) * 2024-05-20 2024-07-16 苏州骏鼎达新材料科技有限公司 Composite heat insulation sleeve and manufacturing equipment and manufacturing method thereof

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Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
414E Application relinquished (sect. 14/1949)
CSNS Application of which complete specification have been accepted and published, but patent is not sealed