C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 35/58 (2006.01) B22D 41/18 (2006.01) B22D 41/54 (2006.01) C04B 35/56 (2006.01) C04B 35/66 (2006.01)
Patent
CA 2062307
ABSTRACT OF THE DISCLOSURE EROSION, THERMAL SHOCK AND OXIDATION RESISTANT REFRACTORY COMPOSITIONS A refractory material possessing excellent erosion, thermal shock and oxidation resistance, as well as resistance to oxide build up useful in continuous casting of steel for use in such articles as tundish shrouds, particularly for slagline sleeves, bore liners and upper seating areas in such shrouds, as well as for stopper rod noses. The material consists of the following by weight: (a) carbon, from about 4% to about 50%; (b) one or more members selected from the group consisting of zirconium di-boride and titanium di-boride in an amount of from about 10% to about 90%: and (c) one or more members selected from the group consisting of zirconia, SiAlON, clay, alumina, magnesia, silica, silicon carbide, silicon nitride, boron nitride, mullite and chromia in an amount of from about 10% to about 80%.
Hoggard Dale B.
Robinson Quentin K.
Gowling Lafleur Henderson Llp
Vesuvius Crucible Company
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