Research on electromagnetic properties of electromagnetic stirring roller

Using computer simulation and test measurements, the relationship between the electromagnetic properties of an electromagnetic stirring roller and the roller structure parameters was analyzed and compared. The distribution of the magnetic field, magnitude of the electromagnetic force, and matched-load characteristics were systematically investigated at diferent parameter values for the induction coils, iron core, shield, and roller sleeve. The results indicate that the change in the electromagnetic force with stimng frequency is non-linear and has a maximum value higher than 10 Hz; the electromagnetic force largely depends on the diameter of the core; and there is a mutual restriction relationship between the two-phase imbalance and the electromagnetic force.