Research on Exothermic Coefficient between Foam Model and the Front of Liquid Metal during the Pouring Process in Evaporated Pattern Casting
Variation of parameters on the flow front of liquid metal in Evaporated Pattern Casting (EPC) is inferred using the basic theory. The results show that exothermic coefficient of EPC is proportional to the flux entering into the mould and the amount of consumed gas per unit volume EPC in evaporated pattern, and inverse to the horizontal cross-sectional area of casting and pouring temperature。 Meanwhile, the coefficient is changeable. However, the liquid flux entering into spruce is constant. This confirms the analogy relation of the Bell’s thermal transmission and the explanation to the general practices of EPC is also given.