Method of making a transformer core comprising strips of...

Details Method of making a transformer core comprising strips of... Method of making a transformer core comprising strips of...

H - Electricity

01

F

H01F 41/02 (2006.01)

Patent

CA 2042253

Groups of amorphous steel strips, cut to appropriate length from a composite strip, are stacked in longitudinally-staggered relationship to form packets. The groups are made up by a process that comprises a pre-spooling operation that results in the strips and groups in each packet adhering together, even though dry. The individual packets are fed successively into a belt nester that includes a rotatable arbor and wrapping means that wraps the packets in superposed relationship about the arbor as the arbor rotates, thereby building up a hollow core form. The above-described adhesive effect precludes the strips and groups from shifting longitudinally while the packets are being wrapped about the arbor.

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