Method of curing vacuum pressure impregnated coils

Details Method of curing vacuum pressure impregnated coils Method of curing vacuum pressure impregnated coils

1974-06-21

1976-02-10

Newsome, J. H.

Coating processes

Electrical product produced

Welding electrode

427116, 427294, 427342, 427390, 264272, B05D 306, H01F 506

Patent

active

039378551

ABSTRACT:
After vacuum pressure impregnating an insulated coil with liquid polyester resin the outer surface of the combination is treated to cause a quick low temperature gellation of an outer shell of the resin to thereby encapsulate the remaining liquid portion. A subsequent high temperature cure is imposed for a relatively long period of time to solidify the liquid inner portion and to fully cure the resin throughout the insulation.

REFERENCES:
patent: 2829191 (1958-04-01), Rogers
patent: 2956613 (1960-10-01), Edelman et al.
patent: 2963747 (1960-12-01), Brown
patent: 3139657 (1964-07-01), Maly
patent: 3240848 (1966-03-01), Burke et al.
patent: 3369947 (1968-02-01), Mertens et al.
patent: 3531699 (1970-09-01), Peck
patent: 3778536 (1973-12-01), Smearing

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