Study On The Stress And Contingency Field In Continuous Casting Of 0Cr13 Stainless Steel Slab

0Cr13 steel, one type of stainless steel, is liable to generate crack. Heat stress is one of the major reasons for the cracks. This experiment simulated the temperature field and stress field based on the equipment parameters and process parameters of the 0Cr13 steel thick slab continuous caster from TISCO, providing technical guidance for the establishment of the 0Cr13 steel thick slab cooling process.This paper firstly summarized the slab defects,second cooling system,thermo-stress model and survey of stress studying.Then the model of thermo-stress for continuous casting of slab was developed with considering stress condition of slab.At the same time material thermo-properties relating to temperature were considered.Through some investigation in product spot ,the temperature field and stress field of 1020×200mm slab were discussed in production casting speed.The simulation shows that thermo-stress is very great because of surface reheating of slab when the slab goes out of mold.It is the main reason of crack defects.Exterior shell bears tensile stress and interior shell bears compressive stress during the early stage of solidification.As casting speed and superheat increases , stress decreases.It is possible to describe the formation of crack and to estimate danger areas.Thereby rational cooling system should be adopted to decrease the temperature gradients to avoid crack formation.The simulation results to determine a reasonable production of continuous casting system has some help.