Abstract:In the melting process of non-ferrous metals, melt stirring is one of the most important processes. According to the basic equation of Maxwell electromagnetics and chaos theory, combined with finite element method, a new electromagnetic stirring device based on DC excitation is designed in this paper, and the three-dimensional numerical model of multi-field coupling of DC electromagnetic stirring device is established. The distribution and morphological characteristics of magnetic field and flow field are simulated and analyzed by ANSYS software. During electromagnetic stirring, the alternating magnetic field can form the circumferential electromagnetic force, through which the non-ferrous metal melt can move. It is found that the circulating flow inside the melt and the shear flow near the groove wall are in conflict with each other. This phenomenon creates favorable conditions for the collision, friction and mixing of non-ferrous metals and reinforcement groups.