HEAT INSULATING AGENT FOR MOLTEN STEEL SURFACE

摘要

PURPOSE:To surely prevent the contamination of molten steel caused by a reaction between the air oxidation and a heat insulating agent and further, to provide the heat insulating agent without damage and erosion to a refractory. CONSTITUTION:Ca is contained at 0.1-20% as the outer percentage in the heat insulating agent containing 0.5-1.0 CaO/Al2O3, 5-<30% MgO and <=10% SiO2.