Method of manufacturing wound transformer cores

Details Method of manufacturing wound transformer cores Method of manufacturing wound transformer cores

1989-07-26

1990-11-27

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

336213, 336217, 336234, H01F 4106

Patent

active

049725734

ABSTRACT:
A method for manufacturing rectangular wound cores including a step of forming at least one developed lamination body by cutting off at least one ring-like lamination body, a step for applying adhesive agent to one of cut ends of each developed lamination body, a step forming lamination blocks each of which is comprised of plural lamination units shifted in the length-wise direction by a predetermined distance and a step for jointing both ends of each of lamination unit in an overlapping state by winding each lamination block around a shaping bobbin.

REFERENCES:
patent: 4646048 (1987-02-01), Hunt et al.
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: 4761630 (1988-08-01), Grimes et al.
patent: 4789849 (1988-12-01), Ballard et al.

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