Abstract:

The supporting plane board for nozzle is the pivotal component in electro-magnetic cast-rolling technique. Its structural stability greatly affects the stability of nozzle plane. In this paper, a three-dimension finite element calculating model for thermo-stress coupling analysis is developed with the finite element software package AN- SYS and is used to calculate the practical thermo-stress distribution in the supporting nozzle plane board. The resuits show that there exists remarkable thermo-stress in the plane board and distinct stress concentration, and that the thermal displacement in the plane board is rather large, especially in the vertical direction, which may result in the deformation failure of the plane board. The calculated results accord well with the practical measurement, which verifies the effectiveness of the proposed model.

Key words: electro-magnetic cast-rolling, supporting nozzle plane board, temperature field, thermo-stress, thermal displacement