Method of making a transformer core comprising strips of amorpho

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

1991-09-18

1993-07-27

Hall, Carl E.

Metal working

Plural diverse manufacturing apparatus including means for...

Separate tool stations for selective or successive operation...

295648, 29609, 29738, H01F 4102

Patent

active

052301397

ABSTRACT:
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 apparatus preforming 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.

REFERENCES:
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patent: 5050294 (1991-09-01), Ballard et al.
patent: 5093981 (1992-03-01), Ballard et al.

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