Estimation of Mold Powder Consumption in Continuous Casting

The inflow phenomena of mold powder between mold and solidified shell are very important for continuous casting opreation and quality of cast products.in this experimenral study, mold powder consumption was measured with a apparatus called 'mold simulator'using several kinds of mold powders. Based on the results from the experiments, the following fidings were obtained. Mold powder consumption, Q, was affected by the powder properties, powder viscosity, η, crystallization temperature, Tcs, and also affected by the mold oscillation, amplitude, A, and frequency, f and casting speed, Vc, and deformation ratio βof sinusoidal curve to non-sinusoidal. As the result, the next equation of mold powder consumption was obatined.Q = K·βA0.4/Tcs1.6√ηVccos-1(-1000Vc/2πfA)This equation can be used to find the adequate operation conditions when the mold powder properties and the amplitude of mold oscillation are changed.