Effect of ionization on voltage drop and frequency of drop short-circuits in vacuum arc remelting of high-alloy steels

摘要

Experiment on vacuum arc remelting of 380 mm diameter electrode of alloy steel into 465 mm diameter mould was performed in the industrial conditions. Static model of changing voltage drop at arc depending on duration of relaxation period of ionization has been developed. The offered model can be used for optimum control of process of vacuum arc remelting.