Cause Analysis of VAR Process Auxiliary Electrode Fusing
Aiming at the problem of auxiliary electrode fusing in VAR process,this paper establishes a smelting three-dimensional model,and conducts numerical simulation analysis on the temperature field and force field of auxiliary electrode in VAR process to explore the root cause of auxiliary electrode fusing.The simulation results show that:the temperature of auxiliary electrode neck is only dozens of degrees,and the strain is very small,and the temperature generated under normal smelting parameters will not cause the neck to be pulled off;The field test shows that the fluctuation of air pressure is the fundamental cause of the auxiliary electrode fusing.
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