Rotary In-Mold Stirring in a Cylindrical Continuous Casting Geometry

An analysis of in-mold rotary electromagnetic stirring forces and induced power is presented for a multilayer round continuous casting geometry. The required fields, forces, and power are derived using a convenient multilayer model that neglects end effects. Stirring characteristics are presented as a function of melt resistivity, slip, frequency, and mold wall thickness. Means of scaling these results to other round geometries are described, and the application of the model to the round corner square geometry is discussed.