Trickle impregnation of small motors

Author

Thurman, Charles E.

Author_Institution

Electro-Mech Corp., Austin, TX, USA

Volume

5

Issue

3

fYear

1989

Firstpage

30

Lastpage

35

Abstract

Trickle impregnation is a method of coating the windings of armature and stator components with a solventless polyester or epoxy resin. The process involves preheating the windings, dispensing a measured amount of resin, and heat-curing the resin. The advantages of trickle impregnation are presented and the materials used (polyesters and epoxies) are detailed. Three machine configurations that have been designed to perform the trickle impregnating operations of heating cores and dispensing resin and described: dial type, flow-through ovens, single-station machines, and batch-process machines. Special considerations relating to resin dispensing are also discussed.<>

Keywords

machine insulation; machine windings; small electric machines; armature; batch-process machines; dial type; epoxy resin; flow-through ovens; heat-curing; machine configurations; preheating; resin dispensing; single-station machines; small motors; solventless polyester; stator components; trickle impregnation; Assembly; Coatings; Costs; Epoxy resins; Heating; Manufacturing processes; Stators; Thermal conductivity; Thermal resistance; Viscosity;

fLanguage

English

Journal_Title

Electrical Insulation Magazine, IEEE

Publisher

ieee

ISSN

0883-7554

Type

jour

DOI

10.1109/57.32447

Filename

32447