Numerical Simulation of the Solidification Process of Electroslag Remelting
This paper takes the electroslag remelting ingot(Ø400 mm×1200 mm hot-work die steel H13)as object to conduct simulation of the solidification process during electroslag remelting.The results show that the molten pool deepens with the increase of ingot height in the initial stage,and the shape of molten pool no longer changes with the ingot height in the later stage,then the casting speed and solidification speed reach a balance.The micro-structure simulation results show that the ESR ingot is mainly composed of vertical columnar crystal at the bottom,and columnar crystal at middle and top which have a certain angle with the axial direction and symmetrically distributed along the central axis.