Method of making dynamoelectric machines including metal filled

Details Method of making dynamoelectric machines including metal filled Method of making dynamoelectric machines including metal filled

1992-09-15

1993-06-01

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

310214, H02K 1510

Patent

active

052148394

ABSTRACT:
A high permeability slot wedge for a dynamoelectric machine with the wedge configured as an elongated bar of uniform cross-sectional configuration formed of a ferromagnetic material having modestly good electrically insulative properties comprising approximately by weight 60% to 80% relatively small ferromagnetic particles such as powdered iron, about 10% reinforcing glass fabric; and 15% to 20% unsaturated thermosetting plastic resin binder such as a polyester resin is disclosed. The ferromagnetic material is homogeneously distributed throughout the thermosetting plastic binder so that the permeability and resistivity of the resulting wedge is substantially uniform throughout.

REFERENCES:
patent: 872324 (1907-12-01), Bergman
patent: 1605112 (1926-11-01), Huggins
patent: 1684255 (1928-09-01), Bergman
patent: 3093764 (1963-06-01), King et al.
patent: 3447009 (1969-05-01), Keuth et al.
patent: 3976902 (1976-08-01), Simmonds
patent: 4427970 (1984-01-01), Richter et al.
patent: 4761581 (1988-08-01), Watanabe et al.

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