Study on Thermal Simulation Experiment of CSP Hot Rolling of Fe-3%Si Steel

The thermal simulation experiments of heating,hot rolling and coiling of Fe-3%Si steel are performed by simulating on site CSP process and environment.The recrystallization behavior of Fe-3%Si steel in the simulated CSP hot rolling process is studied by Gleeble-1500D thermal simulator.The results show that the process with the pass reduction of 45%-40%-40%-20%-35%-35% can obtain finer grains,so the dynamic recrystallization has accomplished better in this process.With the increase of coiling temperature,the average grain size becomes smaller.When the coiling temperature is 650℃,the grain size is relatively uniform.The results can provide an experimental basis for the study of thermal deformation behavior of grain-oriented silicon steel prepared by CSP process.