Numerical Simulation on ThermoMechanical Behavior of Strands in Continuous Casting Mold
KANG Li1,WANG Yang2,WANG Engang1,HE Jicheng1
1.Key Laboratory of National Education Ministry for Electromagnetic Processing of Materials, Northeastern University, Shenyang 110004, Liaoning,China;2.Shougang Co Ltd, Beijing 100043,China
Abstract:Based on solidification process of carbon steel in continuous casting mold and considering the contact behavior between the strands and mold, a fully thermo-mechanical coupled 3D static thermoelasticplastic FEM model was established using ANSYS software. The thermo and mechanical states in continuous casting mold were obtained, including temperature and stress distributions of strands, gas gap formation, and temperature field in the mold. The results show that the outer shell is compressed, and the inner shell is stretched. The stress of the out and inner shell are 3.11 MPa and 2.79 MPa, repectively. The stress of solidification interface is about 3MPa belonging to range of ultimate strength, which maybe result in cracks. The taper mold favors heat transfer. In contrast with no taper mold, the 0.7%/m taper mold can decrease the gap about 42%.