The influence of electromagnetic stirring parameters of 160 mm x 160 mm cast billet on the stirring of molten steel and the flow field in the mould is studied by numerical simulation. The results show that with frequency 1. 0 ~ 5. 0 Hz

the magnetic induction intensity decreases with the increase of frequency and the variation is large. The electromagnetic force in molten steel is symmetrically distributed along the circumference. With current intensities (200 ~ 500 A)

the magnitude of magnetic induction increases with the increase of current intensities. The electromagnetic force fluctuates greatly in the direction of radius in the mould

and there are multiple wave peaks. The largest wave peak is 15 mm away from the copper tube of the mould

which has nothing to do with the intensity of stirring current. The electromagnetic force increases with the increase of the current. The electromagnetic stirring frequency of the billet mould shall be controlled be¬tween 3 Hz and 4. 5 Hz

and the current intensity shall be controlled between 300 A and 500 A.