Edge coating for amorphous ribbon transformer cores

Details Edge coating for amorphous ribbon transformer cores Edge coating for amorphous ribbon transformer cores

1992-11-17

1995-08-15

Ryan, Patrick J.

Stock material or miscellaneous articles

Spirally flat-wound strand or strip

428 98, 428246, 428221, 428398, 428400, 428416, 336213, H01F 4100

Patent

active

054417830

ABSTRACT:
The present invention relates to a process for edge coating amorphous ribbon transformer cores comprising the steps of applying to at least one face exclusive of the distributed gap portion, a first porous material having a porosity sufficient to permit a liquid having a viscosty greater than about 100,000 cps to impregnate the porous material to produce a composite structure; and applying a bonding material having a viscosity of at least about 100,000 cps to the first porous material such that the bonding material substantially contacts the core. Coated cores having good magnetic properties are also disclosed.

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patent: 4648929 (1987-03-01), Siman
patent: 4707678 (1987-11-01), Siman
patent: 4709471 (1987-12-01), Valencic et al.
patent: 4734975 (1988-04-01), Ballard et al.
patent: 4741096 (1988-05-01), Lee et al.
patent: 4789849 (1988-12-01), Ballard et al.
patent: 4790064 (1988-12-01), Ballard et al.

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