PRODUCTION OF ZIRCONIA-QUALITY NOZZLE FOR POURING MOLTEN METAL

摘要

PURPOSE:To improve durability of a zirconia-quality nozzle for pouring molten metal in continuous casting, etc. CONSTITUTION:The zirconia raw material partially stabilized with CaO, MgO or Y2O3 is blended in grainular state and to this, solution containing almost 5-50wt.% SiO2 component is added at 0.1-1wt.% to manufacture a sintering body of the nozzle for pouring the molten metal.