Riser sleeve composition and article for use in casting...

Details Riser sleeve composition and article for use in casting... Riser sleeve composition and article for use in casting...

C - Chemistry, Metallurgy

04

B

22/135, 261/6

C04B 35/56 (2006.01)

Patent

CA 1059156

Abstract An insulating composition useful for riser sleeves for casting of molten ferrous metal is described. The composition comprises 30% to 50% refractory fiber, 1% to 35% granular silicon carbide, inorganic binder, organic binder, and refractory filler. Molten steel at temperatures on the order of 3,000°F can be readily handled by riser sleeves of this composition The riser sleeves of this invention also afford superior heat insulating properties and allow the molten metal in the riser to remain molten for a longer period.

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