JPS5571157A - Method of manufacturing heat-resisting electric winding - Google Patents

Method of manufacturing heat-resisting electric winding

Info

Publication number
JPS5571157A
JPS5571157A JP14338078A JP14338078A JPS5571157A JP S5571157 A JPS5571157 A JP S5571157A JP 14338078 A JP14338078 A JP 14338078A JP 14338078 A JP14338078 A JP 14338078A JP S5571157 A JPS5571157 A JP S5571157A
Authority
JP
Japan
Prior art keywords
resisting
heat
winding
combined
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.)
Pending
Application number
JP14338078A
Other languages
Japanese (ja)
Inventor
Masahiko Sakai
Toru Koyama
Shinichi Toyoda
Toshikazu Narahara
Kazuo Goto
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP14338078A priority Critical patent/JPS5571157A/en
Publication of JPS5571157A publication Critical patent/JPS5571157A/en
Pending legal-status Critical Current

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  • Manufacture Of Motors, Generators (AREA)

Abstract

PURPOSE: To provide an insulated winding of high initial dielectric strength and good heat-resisting property, by winding a combined heat-resisting material integrated by a polyimide resin, impregnating the material with an epoxy-isocyanate resin of a prescribed equivalent ratio, and setting the latter resin.
CONSTITUTION: Different kinds of heat-resisting materials such as an organic heat- resisting film and an inorganic porous material are integrated with each other by a polyimide resin to prepare a combined heat-resisting material. This combined material is wound around a conductor and then impregnated with an insulating varnish which is prepared by mixing 1.0 equivalent of a polyfunctional epoxy compound with 1.5∼25.0 equivalents of a polyfunctional isocyanate compound. The insulating varnish is set. This results in providing a heat-resisting electric winding which excels in initial dielectric strength and heat-resisting property and can be applied to the class C insulation.
COPYRIGHT: (C)1980,JPO&Japio
JP14338078A 1978-11-22 1978-11-22 Method of manufacturing heat-resisting electric winding Pending JPS5571157A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14338078A JPS5571157A (en) 1978-11-22 1978-11-22 Method of manufacturing heat-resisting electric winding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14338078A JPS5571157A (en) 1978-11-22 1978-11-22 Method of manufacturing heat-resisting electric winding

Publications (1)

Publication Number Publication Date
JPS5571157A true JPS5571157A (en) 1980-05-29

Family

ID=15337422

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14338078A Pending JPS5571157A (en) 1978-11-22 1978-11-22 Method of manufacturing heat-resisting electric winding

Country Status (1)

Country Link
JP (1) JPS5571157A (en)

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