Abstract Scope |
In this work, a digital twin system is architected which predicts in real time the 3D temperature field, full-section reduction deformation and micro-structure evolution of the continuous casting. In temperature prediction, thermophysical parameters can be loaded in real time based on the specific location of the billet in 3D space, which ensured the prediction accuracy of solidification process. For deformation prediction, based on three-dimensional thermal/mechanical coupled FEM data-driven and mechanism-driven, a model for online prediction of deformation characteristics during the continuous casting process is established, with the calculation process employing nodal stress accumulation to determine pressure force. In micro-structure evolution, the precipitation of Mns, Ti(C, N) and ect were predicted by coupling microegregation with saturated solid solution product . In the practice, the digital twin system can control of process parameters rapidly, and it was appied in slab and bloom continuous casting process control more than 15 casters. |