Casting is molding method of pouring molten liquid metal into the mold cavity for getting the necessary parts or ingot after solidification and cooling.When the liquid metal is poured into the mold cavity, temperature is passed to the cavity The process of castings formation in cavity is controlled by the heat and also transfer heat to the environment through mold . Changes of temperature are important external manifestation. The internal temperatures distribution of mold and casting change as time goes on....