Numerical Simulation on Solidification Process of Composite Roll Using Static Casting Process
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Key Words：Composite roll; Static state casting; Solidification process; Temperature field
Abstract：Based on the Fluent 6.3 simulation, the influence of different preheating temperature of roll core on the temperature field in shell metal of static solidification process at the same pouring temperature was calculated by the 2dimension solidification model. The results show that the characteristics of solidification process are different according to the variation of preheating temperature of roll core. The last solidification spot lies in the middle of shell metal when the preheating temperature of roll core is lower or at interfaces of shell metal and roll core when the preheating temperature of roll core is higher, respectively. The shell metal can tightly bond with the roll core to form the composite roll, if the preheating temperature of roll core is over 1 250 ℃.
