Simulation analysis of solidification modes of different steels

Abstract

Six tons of steel ingots that have three different temperature windows in the solid-liquid regions were simulated and studied via casting simulation software. The distributions of the porosity and crack in the steel ingots were simulated and predicted. The simulation results showed significant differences among the steel ingot solidification mode in different solid-liquid regions. The solidification mode converted from “U” type to “V” type as the change of temperature window range. The simulation results were strongly consistent with the experimental data. Based on these analysis, we optimized the casting procedure and verified its reliability by experiments. The porosity and crack were fully removed after optimization, which increased the quality of steel ingots and utilization ratio.