C - Chemistry – Metallurgy – 21 – C
Patent
C - Chemistry, Metallurgy
21
C
53/109
C21C 7/076 (2006.01) B22D 1/00 (2006.01) B22D 11/111 (2006.01) C22B 9/10 (2006.01)
Patent
CA 2015611
FS 1445 ABSTRACT METALLURGICAL FLUX COMPOSITIONS A metallurgical flux composition comprising calcium oxide, alumina, magnesium oxide and silica contains 22-35% by weight magnesium oxide and has a weight ratio of calcium oxide to magnesium oxide of from 0.6:1 to 2.5:1. The preferred composition contains 28-42% by weight calcium oxide, 13-21% by weight alumina, 22-35% by weight magnesium oxide and 3-8% by weight silica, preferably has a calcium oxide to magnesium oxide weight ratio of from 0.8:1 to 1.9:1 and preferably has a calcium oxide to silica weight ratio of from 6.0:1 to 7.5:1. The flux composition is particularly useful as a tundish cover in the continuous casting of steel.
Phillips Royston John
Tomkins Andrew John
Foseco International Limited
Gowling Lafleur Henderson Llp
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