Physical Modeling of Mold Heat Transfer during Continuous Casting

MasterThe present study investigated heat behavior in continuous casting mold by using a small-scale casting simulator. One of very important parameter related to heat transfer phenomenon, local heat flux density, was examined under different casting conditions. The casting conditions focused in this study were superheating temperatures and cooling water flow rate through the mold wall. The tests were conducted with samples of different steel grades (carbon steel and high alloyed steel). The experiment results were analyzed and compared with those investigated in previous studies. Among the results, the variation of local heat flux density with carbon content was found to be similar to that in a previous study. Besides, the results also showed that when superheating temperature or cooling water flow rate increased, local heat flux density increased. Therefore, the superheating temperature as well as cooling water flow rate should be considered carefully before casting to reduce problems in casting and defects on steel surface. High temperature microstructure of the steels was also observed to understand microstructure in the initial stage of solidification