EFFECT OF Al AND Si ADDITIVES ON CORROSION RESISTANCE OF Al_2O_3-C REFRACTORIES IN MOLD COVER FLUX

摘要

Simulative study on corrosion of Al2O3-C refractories by mold cover flux has been carried outby means of immersion method.The results show that there fractory exhibits best resistance tothe flux corrosion while the ratio of additive Al and Si is approximately equal to one.In addi-tion,ZrO2-C specimens exhibit better corrosion resistance to mold cover.flux than Al2O3-Cspecimens.