Thermal equilibrium equation for rolling casting process of AZ31 magnesium alloy was established under the two-dimensional rectangular coordinate system.Considering multiple factors of rolling casting process

orthogonal method of 4 level to 5 factors was used to analyze the numerical experiment with the pouring temperature

rolling speed

water cool intensity

roll gap

roll diameter.Based on the Fluent software of ANSYS

the temperature field in rolling casting process was simulate to understand influencing sequence of rolling parameters for magnesium alloy strip and to provide reference for the presentation of optimal technological parameters.The results show that the roll gap is the significant factors

and then casting speed

water cool intensity

roll diameter.The significant confidence level is 95%.