Experimental study of the continuous casting of a binary solution
Conference
DeZego, S, Jones, K, Burton, R et al. (1995). Experimental study of the continuous casting of a binary solution
. American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD, 306(4),
DeZego, S, Jones, K, Burton, R et al. (1995). Experimental study of the continuous casting of a binary solution
. American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD, 306(4),
A laboratory scale test facility has been designed to simulate solidification by using binary solutions (NH4Cl-H2O). The solid/liquid front evolution and the temperature distributions were recorded during the tests. Solidification for 10% and 30% NH4Cl-H2O solutions were conducted. The results showed totally different behavior of the solidification process between the two solutions. After reaching steady state, the hypoeutectic solution illustrated thick columnar dendrites in the mushy zone, with U-shaped temperature contours. It indicated that the warm fluid that was added penetrated deep along the centerline. On the other hand, the hypereutectic solution produced a wide open liquid pool, with short dendrites on the side walls. There existed a deep loose mushy zone at the bottom of the liquid pool, which was formed by the settling of equiaxed dendrites. Temperature gradients along the center line were observed for the hypereutectic solution due to the existence of stratified layers in the liquid pool.
