Slag composition for fluid mold casting

Claim 1

A CASTING SLAG PARTICULARLY USEFUL IN THE MOLTEN CONDITION IN THE FLUID-MOLD INGOT CASTING OF MOLTEN METAL TO PRODUCE INGOTS HAVING GOOD SURFACE QUALITY, SAID MOTEN METAL CONSISTING ESSENTIALLY OF UP TO ABOUT 30% CHROMIUM, UP TO ABOUT 75% IRON, UP TO ABOUT 70% COPPER, UP TO ABOUT 10% COLUMBIUM, UP TO ABOUT 30% COBALT, UP TO ABOUT 10% MOLYBDENUM, UP TO ABOUT 6% TUNGSTEN, UP TO ABOUT 5% MANGANESE, UP TO ABOUT 4% SILICON, UP TO ABOUT 0.3% CARBON, UP TO ABOUT 2% VANADIUM, UP TO ABOUT 7.5% ALUMINUM, UP TO ABOUT 7.5% TITANIUM, UP TO ABOUT 7.2% ALUMINUM, UP TO ABOUT 7.5% TITANIUM, UP TO ABOUT 0.2% ZIRCONIUM, UP TO ABOUT 0.5% MAGNESIUM, THE BALANCE ESSENTIALLY NICKEL WITH THE NICKEL CONTENT BEING AT LEAST ABOUT 7% AND UP TO ABOUT 95% OF THE ALLOY AND THE SAID MOLTEN METAL BEING REACTIVE WITH CASTING SLAGS OF THE SILICATE TYPE AND PRODUCING WITH SILICATE TYPE SLAGS FLUID-MOLD INGOT CASINGS HAVING POOR SURFACE QUALITY, SAID CASING SLAG CONSISTING ESSENTIALLY OF ABOUT 40% TO ABOUT 45% ALUMINA, ABOUT 43% TO ABOUT 45% LIME, ABOUT 5% TO ABOUT 10% TITANIA, NOT MORE THAN ABOUT 1% MANAGENESE OXIDE, AND ABOUT 5% TO ABOUT 15% CRYOLITE.