Simulation analysis of mixing efficiency and uniformity of NdFeB magnetic powder based on EDEM

Taking the ZTH-200 clamp-type square cone NdFeB mixer as the research object, a calculation model of NdFeB powder mixing was established based on EDEM finite element analysis software. Material properties are defined in the simulation, and boundary conditions are loaded, solved and post-processed. The effects of different fill volumes and different mixer rotation speeds on mixing efficiency and uniformity were analyzed. The simulation results showed that 50% of the powder loading volume has the highest mixing efficiency. Appropriately increasing the powder mixing speed can improve the uniformity of magnetic powder mixing. If the powder mixing speed is low, the mixing time should be increased appropriately.