Mathematical Modeling On The Inverse Heat Transfer Of Continuous Casting

Continuous casting is the primary method for steel manufacturing, and it yields 98%steel production in developed countries. China's percentage is more than 90%, but there is still a long way in improving quality and productivity, compared with developed countries. Especially for some special steel, the technology is far from maturity. So the current urgent task for scientific researchers is to optimize the continuous casting technique, improve product quality and efficiency.Numerical simulation on continuous casting is an effective method to optimize the process. However, the current accuracy of temperature simulation is limited by many factors, among which, secondary cooling boundary conditions poses enormous influence on the calculation accuracy. Domestic and foreign scholars have conducted many researches on the secondary cooling related issue Modeling; data collection and inverse model are all among their interest.In this paper, a monitoring system on casting surface temperature is designed (particularly for square casting billet), that helps to collect accurate temperature and have been applied in a steel plant.Also in this paper, a secondary cooling model is proposed, utilizing the inverse heat transfer method. The measured temperature is used to calibrate the model. And all these bring an accurate performance that is applicable in practical manufacturing.Meanwhile, the simulation is performed through the finite element method, and a software package is developed. In actual problem attacking, the location of F-EM equipment for continuous casting is successfully estimated, and the suggestion value adopted by a steel plant. The productions see a quality improvement in billet casting.