Transverse Cooling Strength Distribution of Aluminum Alloy Twin-Roll Casting Rolls.

The ANSYS finite element software is introduced to simulate the cooling efficiency and thermal conductivity of the internal structure of the roll to study the influence of cooling water temperature, flow rate and aluminum melt on the roll temperature field and thermal conductivity. The research results show that in the process of casting and rolling, the aluminum melt is in contact with the rolls in the casting and rolling area, where the maximum temperature of the rolls is 520 °C. The temperature of the roll is gradually reduced to 40 °C, and then the roll continues to rotate until it enters the casting and rolling area, and the cycle is repeated. The reduction of the cooling water temperature could not significantly improve the roll temperature field. The increase of the cooling water flow rate can reduce the temperature field of the cooling water channel in the roll core. The temperature of aluminum melt at the exit of the casting nozzle can significantly increase the temperature field of the roll and the rolling temperature of the aluminum melt at the center of the roll gap, but it does not affect the temperature distribution at the exit of the roll gap after the aluminum melt is cooled by the roll. [ABSTRACT FROM AUTHOR]