Patent ID: 6372014
Filing Date: 2002-04-16
Classification: C21C,Y02P

Abstract:
A treatment agent for a molten ferrous material comprising a mixture of high melting temperature particles and magnesium particles, said high melting temperature particles including metal particles that include at least two metals selected from the group consisting of aluminum, antimony, beryllium, boron, calcium, chromium, copper, iron, magnesium, manganese, nickel, rare earth metals, silicon, silver, sodium, strontium, tin, titanium, vanadium, zinc, zirconium, and mixtures thereof, said high melting temperature particles content of said mixture present in an effective amount to inhibit the conversion of said magnesium particles into molten magnesium prior to said magnesium particles entering said molten ferrous material, the ratio of said high melting temperature particles to said magnesium particles is about 10:90 to 95:5.