ANALYSIS OF BULGING AND STRAIN FOR CONTINUOUSLY CAST SLAB AS THERMOELASTIC CONTINUOUS BEAM

Thermoelastic bending theory for a continuous beam has been applied to the analysis of bulging and strain in the solidifying shell of a cont inuously cast slab. It has been proved that negative bulging may occur in the practical casting machine because of changes in roll pitch and roll misalignment. The effects of roll misalignment and pitch on bulg ing and strain in the solidifying shell have been analysed. The forces on support rolls have been computed. The above results are in agreeme nt with published theoretical and experimental analyses of strand defo rmation. IS/1335. (C) 1998 The Institute of Materials.