GB2019778A - A Mica Insulating Foil and Method for its Manufacture - Google Patents

A Mica Insulating Foil and Method for its Manufacture

Info

Publication number
GB2019778A
GB2019778A GB7914343A GB7914343A GB2019778A GB 2019778 A GB2019778 A GB 2019778A GB 7914343 A GB7914343 A GB 7914343A GB 7914343 A GB7914343 A GB 7914343A GB 2019778 A GB2019778 A GB 2019778A
Authority
GB
United Kingdom
Prior art keywords
adhesive
epoxy resin
fabric
impregnated
resin
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.)
Granted
Application number
GB7914343A
Other versions
GB2019778B (en
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.)
AEG Isolier und Kunststoff GmbH
Original Assignee
AEG Isolier und Kunststoff GmbH
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 AEG Isolier und Kunststoff GmbH filed Critical AEG Isolier und Kunststoff GmbH
Publication of GB2019778A publication Critical patent/GB2019778A/en
Application granted granted Critical
Publication of GB2019778B publication Critical patent/GB2019778B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B19/00—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica
    • B32B19/02—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica the layer of fibres or particles being impregnated or embedded in a plastic substance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B19/00—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica
    • B32B19/06—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/024—Woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B26/14—Polyepoxides
    • 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
    • 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
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
    • B32B2315/10—Mica

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Textile Engineering (AREA)
  • Insulating Bodies (AREA)
  • Inorganic Insulating Materials (AREA)

Abstract

An impregnated mica insulating foil for insulating electrical machines comprises a mica paper (17) secured to an open weave fabric (11) e.g. of glass fibres by means of an epoxy resin adhesive and impregnated with an impregnating resin e.g. a hardener-free epoxy resin, the epoxy resin adhesive coating the fabric completely except in the regions between warp and weft threads which remain open to leave at least 50% of the surface of the mica paper adjacent the fabric unmoistened by the adhesive and the epoxy resin being non-adhesive at room temperature and soluble in the impregnating resin. The invention also includes a method of producing the insulating foil wherein the fabric 1 is passed through a bath 2 of the adhesive solution, air blasted at 3 to free the interstices of adhesive, dried at 4 and calendered by rollers 5, 6 to the mica paper strip 7 impregnated with resin by roller 8. <IMAGE>
GB7914343A 1978-04-26 1979-04-25 Mica insulating foil and a method for its manufacture Expired GB2019778B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2818193A DE2818193C2 (en) 1978-04-26 1978-04-26 Process for the production of an impregnable mica insulating film

Publications (2)

Publication Number Publication Date
GB2019778A true GB2019778A (en) 1979-11-07
GB2019778B GB2019778B (en) 1982-06-23

Family

ID=6038005

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7914343A Expired GB2019778B (en) 1978-04-26 1979-04-25 Mica insulating foil and a method for its manufacture

Country Status (5)

Country Link
AT (1) AT369204B (en)
BE (1) BE875627A (en)
DE (1) DE2818193C2 (en)
FR (1) FR2424653A1 (en)
GB (1) GB2019778B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0604804A2 (en) * 1992-12-28 1994-07-06 Asea Brown Boveri Ag Insulating tape and method for producing the same
EP0878894A1 (en) * 1997-05-16 1998-11-18 Abb Research Ltd. Insulation of a stator winding
EP2418079A1 (en) * 2010-08-11 2012-02-15 Hitachi Ltd. Dry mica tape and instruction coils manufactured therewith
EP2762512A1 (en) * 2013-02-04 2014-08-06 Siemens Aktiengesellschaft Reaction accelerator for a copolymerization, electrical insulation tape, electrical insulation body and consolidation body
US10821680B2 (en) * 2012-12-21 2020-11-03 Cytec Industries Inc. Curable prepregs with surface openings
CN111976038A (en) * 2020-06-30 2020-11-24 湖北平安电工股份有限公司 Hot die pressing production method of mica special-shaped piece

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19912667A1 (en) * 1999-03-20 2000-09-28 Micafil Ag Zuerich Insulating tape for winding an electrical conductor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1423986A (en) * 1964-11-27 1966-01-07 Alsthom Cgee Flexible mica paper tapes reinforced with a frame
GB1169193A (en) * 1966-07-07 1969-10-29 Micanite & Insulators Co Ltd Improvements in and relating to Electrical Insulation
DE1614058A1 (en) * 1967-05-11 1970-06-04 Licentia Gmbh High voltage winding insulation
DE1613273A1 (en) * 1967-10-02 1971-01-21 Licentia Gmbh High voltage winding insulation
US3586557A (en) * 1968-01-08 1971-06-22 Westinghouse Electric Corp Micaceous insulation and electrical apparatus insulated therewith
CH547001A (en) * 1971-04-08 1974-03-15 Schweizerische Isolawerke METHOD OF MANUFACTURING A WINDING TAPE FOR THE INSULATION OF ELECTRIC MACHINERY.

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0604804A2 (en) * 1992-12-28 1994-07-06 Asea Brown Boveri Ag Insulating tape and method for producing the same
EP0604804A3 (en) * 1992-12-28 1996-11-13 Asea Brown Boveri Insulating tape and method for producing the same.
EP0878894A1 (en) * 1997-05-16 1998-11-18 Abb Research Ltd. Insulation of a stator winding
EP2418079A1 (en) * 2010-08-11 2012-02-15 Hitachi Ltd. Dry mica tape and instruction coils manufactured therewith
US8669473B2 (en) 2010-08-11 2014-03-11 Hitachi, Ltd. Dry mica tape and insulation coils manufactured therewith
US10821680B2 (en) * 2012-12-21 2020-11-03 Cytec Industries Inc. Curable prepregs with surface openings
EP2762512A1 (en) * 2013-02-04 2014-08-06 Siemens Aktiengesellschaft Reaction accelerator for a copolymerization, electrical insulation tape, electrical insulation body and consolidation body
WO2014118077A2 (en) 2013-02-04 2014-08-07 Siemens Aktiengesellschaft Reaction accelerator for a copolymerisation, electrical-insulation tape, electrical-insulation body, and consolidation body
WO2014118077A3 (en) * 2013-02-04 2014-12-31 Siemens Aktiengesellschaft Reaction accelerator for a copolymerisation, electrical-insulation tape, electrical-insulation body, and consolidation body
RU2656340C2 (en) * 2013-02-04 2018-06-05 Сименс Акциенгезелльшафт Copolymerisation catalyst, electrical insulation tape, electrical insulation sheath and sealant
US10087198B2 (en) 2013-02-04 2018-10-02 Siemens Aktiengesellschaft Reaction accelerator for a copolymerisation, electrical-insulation tape, electrical-insulation body, and consolidation body
CN111976038A (en) * 2020-06-30 2020-11-24 湖北平安电工股份有限公司 Hot die pressing production method of mica special-shaped piece

Also Published As

Publication number Publication date
ATA258279A (en) 1982-04-15
AT369204B (en) 1982-12-10
GB2019778B (en) 1982-06-23
DE2818193A1 (en) 1979-11-08
FR2424653A1 (en) 1979-11-23
BE875627A (en) 1979-08-16
DE2818193C2 (en) 1984-03-29

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee