Electromagnetic inductor for generating a helical field

Details Electromagnetic inductor for generating a helical field Electromagnetic inductor for generating a helical field

1980-01-16

1982-03-30

Eisenzopf, Reinhard J.

Metal founding

Process

Shaping liquid metal against a forming surface

164504, B22D 2702

Patent

active

043219586

ABSTRACT:
An electromagnetic inductor for generating a helically moving magnetic field includes a first magnetic circuit having an annular core with radially inwardly projecting teeth and a winding for generating a rotating magnetic field, and a second magnetic circuit formed by foliated bars and a second winding comprising an axial series of circular coils for generating an axially moving field. The two fields combine to generate a field with helical movement. At least some consecutive teeth of the core are hollowed to provide axial grooves in which the foliated bars are disposed. The coils of the second winding are cylindrical and set inside the cylindrical volume defined by the teeth. The inductor is particularly adapted for the electromagnetic rabbling of a billet in a continuous casting process.

REFERENCES:
patent: 3693697 (1972-09-01), Tzavaras
patent: 3882923 (1975-05-01), Alberny et al.
patent: 4200137 (1980-04-01), Zavaras et al.

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