Numerical Simulation of Temperature Field in 6061 Aluminum Alloy Vertical Twin-Roll Casting Process

摘要

Due to the lightweight production technology of automobiles, the demand for aluminum alloys is increasing. Therefore, the casting speed is increased to improve the production efficiency, but the high-speed continuous casting makes it difficult to control the casting and rolling process. In this paper, a two-dimensional mathematical model of the 6061 aluminum alloy double-roller pool domain is established. The flow, heat transfer and solidification process in molten pool were simulated by FLUENT software using finite volume method. The simulation calculations were carried out for different process parameters (casting speed, cooling strength and casting temperature), and the influence of different process conditions on temperature field distribution and freezing point position was analyzed to determine the reasonable process parameters of the material under high-speed casting conditions. Numerical calculations are performed by the solidification/melting model of the FLUENT software to provide guidance for the 6061 aluminum alloy twin roll casting.