Numerical simulation and experimental verification of electromagnetic field of continuous casting copper crucible

The electromagnetic field of continuous casting square copper crucible was simulated by numerical simulation using Ansoft Maxwell in order to clarify the influence of current frequency and intensity on the distribution of magnetic flux density in the crucible. The simulation results showed that as the current frequency increases or current intensity decreases, the distribution of the magnetic flux density in each vertical position of the crucible hardly changed, but the value of the magnetic flux density was gradually reduced, and the magnitude of the decrease was decremented from the maximum position of the magnetic flux density to the upper and lower ends. The maximum value of the magnetic flux density in different axial directions was proportional to the current intensity. In the radial direction, the magnetic flux density of the surface of the crucible was large, and gradually decreased toward the inner layer. The magnetic field at the slit was higher than the middle portion of the ridge due to the reinforcing effect at the slit. The small coil method was used to measure the actual electromagnetic field distribution in the crucible. It can be found that the magnetic flux density in the crucible decreased from the crucible wall to the crucible center, which is consistent with the results of the numerical simulation.