Thermo-mechanical Simulation and Parameters Optimization for Beam Blank Continuous Casting
The recent trends in the steel making processes are moving toward near net shape casting. The castings of strip, thin slab and beam blank are such typical examples. A great deal of research work on heat transfer and stress in continuous casting has been done. These models, however, have been confined to the continuous casting in the simple geometry. Unfortunately little information is available on the simulation of the beam blank casting, especially on the parameters optimization of this process. In order to ensure high quality and productivity, in this work, a coupled thermo-mechanical finite element model is developed to compute the temperature and stress profile in beam blank continuous casting. By comparing the calculated data with the metallurgical constraints, the key reason affected the beam blank quality can be found out. Then based on the subproblem approximation method, an optimization program is developed to search out the optimum cooling parameters. Those optimum parameters can meet all specified requirements but with a minimum expense of the operational and the design constraints, and can make it possible to run the caster at its maximum productivity, minimum cost and to cast defect free products. Now, online verifying of this optimization project has been put in practice, which can prove that it is very useful and efficient to control the real production. The commercial system ANSYS, which is based on finite elements, is applied to the numerical solution.
Beam blank Continuous casting Thermo-mechanical simulation Parameters optimization Subproblem approximation method
Wei CHEN Yu-zhu ZHANG Cai-jun ZHANG Li-guang ZHU Wen-gang LU Bao-xiang WANG Jin-hong Ma
Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Engi College of Metallurgy and Energy Engineering, Hebei Polytechnics University,Tangshan 063009, China JINXI Iron and Steel Co.Tangshan 063600, China. Tangshan Heavy Plate CO.LTD.,Tangshan 063600, China. Yanshan University, Qinhuangdao 066004, China
国际会议
郑州
英文
2007-10-23（万方平台首次上网日期，不代表论文的发表时间）