Insulated metallic strip and method for producing same

Details Insulated metallic strip and method for producing same Insulated metallic strip and method for producing same

1997-02-19

1999-05-18

Pianalto, Bernard

Coating processes

Solid particles or fibers applied

Uniting particles to form continuous coating with...

427295, 427435, 428209, 428457, B32B23/02

Patent

active

059049537

ABSTRACT:
An insulated metallic strip suitable for use in the coils of power transformers and method of producing the same. Following the extrusion of a flat metallic strip of conductive material for winding into a magnet coil, the flat strip having a predetermined thickness and first and second sides bounded by a pair of fully rounded edges, the method of insulating the strip of conductive material by supporting the flat strip in a level state at a predetermined temperature in a vacuum chamber and while in the vacuum chamber applying a liquid coating of resin to the entire first side of the strip and the pair of rounded edges and extending onto the second side of the strip from each of the edges a distance at least as great as about 0.25" to prevent turn to turn discharge. Applying a liquid coating of resin to the second side of the strip at a plurality of spaced areas between the coating extending around the edges, controlling the placement and thickness of the resin coating on the strip and curing the liquid coating of resin. A flat metallic strip of conductive material coated according to this method is also disclosed.

REFERENCES:
patent: 5359874 (1994-11-01), Buckley et al.
patent: 5406818 (1995-04-01), Linsenbardt et al.
patent: 5528820 (1996-06-01), Collier
Vacumat With UV Curing System--Reproduced from "Supply Lines" brochure published by E&R System Technik, Inc., Springfield, MA (No date avail.).
"Vacuum Coating Eliminates Waste, Emissions," Furniture Design & Manufacturing, Nov. 1992.

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