TANGIBLE MATERIAL FOR ADHERING NON-METALLIC INCLUSION, ITS MANUFACTURE, AND ELIMINATING METHOD FOR NON-METALLIC INCLUSION IN MOLTEN STEEL

摘要

PROBLEM TO BE SOLVED: To improve the quality of a cast piece by heightening the inclusion adhesive speed of an object and decreasing the inclusion efficiently when the non-metallic inclusion in a molten steel is removed by adhering to a refractory. ;SOLUTION: This tangible material 1 for adhering a non-metallic inclusion comprises one or, two or more kinds of powder 2 selected from sulfur, tellurium, selenium, and compounds thereof, and the balance of a refractory composed of alumina, zirconia, or magnesia and the like. The composition of sulfur, tellurium, or selenium is preferably 35 (at.%) or less. This material 1 is put in a molten steel, and the non-metallic inclusion is effectively eliminated by heightening the adhesion speed of the inclusion.;COPYRIGHT: (C)1999,JPO