Based on the physical and mathematical models for electroslag heating on surface of roll core

the thermoelectricity field of slag pool in roll core surface heating system and its influencing factors have been simulated by using large- scale finite element software ANSYS. Study results show that there is a strong current area between the roll core surface and the electrode to rapidly heat the surface of roll core ； with increasing the voltage and the slag pool's depth

and decreasing the distance between electrode and roller

the electric field intensity of slag pool and the temperature of whole slag pool increase and the high temperature zone is centralized between roll and electrode ； with increasing the number of electrode

the distribution of electric field in system is more balancing.