Method for making a transformer core comprising amorphous metal

Details Method for making a transformer core comprising amorphous metal Method for making a transformer core comprising amorphous metal

1990-01-11

1992-03-10

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

336213, 336234, H01F 4102

Patent

active

050939815

ABSTRACT:
This method of making a transformer core from strips of amorphous metal utilizes an arbor that has a longitudinal axis and an external surface surrounding the axis that includes a portion of concave configuration forming a depression in the external surface. A plurality of packets are assembled, each packet comprising a plurality of groups of amorphous metal strips, the groups in each packet (i) comprising many aligned amorphous metal strips and (ii) having transversely-extending edges that are staggered with respect to each other longitudinally of the packet. The packets are sequentially wrapped about the arbor in superposed relationship while the arbor is held against rotation, thereby building up a core form about the arbor. Each packet prior to its being wrapped about the arbor is located so that when wrapped, opposite ends of each group meet in overlapping relationship in a location angularly aligned with said surface portion of concave configuration.

REFERENCES:
patent: 3003225 (1961-10-01), Zinsky et al.
patent: 3049793 (1962-08-01), Cooper et al.
patent: 4024486 (1977-05-01), Klappert
patent: 4413406 (1983-11-01), Bennett 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.

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