Numerical Simulation during Expansion for Hot Rolling Sheet Strip

In order to analyze the procedure of hot rolling sheet strip, the model of expansion of coiler was simulated during sheet strip coiling with FEM. The base of conditions of hot rolling sheet strip coiling regulations, and studying the rules of displacement change law of sheet stripes nodes along coiler innermost layer during coiler expansion with different layer, layer of minimum and safety was yield, when the loop of sheet strip coiled was 2 or 3 layers, its head had the rather larger displacement, and when the loop was 4 or 5, its displacement was nearly a constant value. The studying results were references vales to constitute the least layer before coiler expansion for technicians in field engineering and increase coiling speed.