Solidification time of plate aluminum alloy castings in gravity die casting

摘要

The effects of the temperature of metal mold and the coat thickness on the solidification time of aluminum alloy castings in gravity die casting were investigated theoretically and experimentally. Plate aluminum alloy casting was cast by thegravity die casting. The experimental data showed that the solidification times of the casting increased as the thickness of coat and the temperature of the metal mold increased. One-dimensional analysis of the solidification of the casting with heatresistance of the coat and that at the interface between the casting and the coat was carried out. It was found that the effects of the interfacial heat resistance on the solidification time of the casting was large and that the temperature change at thecasting surface was not significant.