A method and apparatus for electromagnetic stirring of electrically conductive liquids

摘要

A method for electromagnetic stirring of electrically conductive liquids (2, 21, 22) in the liquid state and / or in the state of the start of the solidification of the liquid (2, 21, 22) with the use of a in the horizontal plane, a lorentz force (f_L) generating rotating magnetic field,characterized by the,that the direction of rotation (15, 16) of the rotating magnetic field in the horizontal plane at regular time intervals in the form of a period duration (t_P) is changed, wherein the frequency of the change in direction of the movement of the magnetic field vector h is set in such a way,that in the state of the mixing of the liquid fluid (2, 21, 22), a period duration (t_P) between two changes of direction of the magnetic field in a time interval (δt_Pm) as a function of the setting time (t_i.a.) with the condition 0.5 · ti.a. TPm 1.5 · ti.a. (I)is provided, andat the beginning of the state of the solidification of the liquid (2, 21, 22), a period duration (t_P) between two changes of direction of the magnetic field in a time interval (δt_Pe) as a function of the setting time t_i.a. with..