Insulating refractory fiber composition and articles for use in

Details Insulating refractory fiber composition and articles for use in Insulating refractory fiber composition and articles for use in

1976-02-02

1977-03-29

Hayes, Lorenzo B.

Compositions: coating or plastic

Coating or plastic compositions

Molds and mold coating compositions

106 3823, 106 3827, 106 68, 106 69, 164123, 249202, 252 62, B28B 736

Patent

active

040147045

ABSTRACT:
An insulating composition useful for riser sleeves, hot tops, ladle liners, and the like articles for use in 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.degree. F can be readily handled by the articles of this composition. They also afford superior heat insulating properties and in the form of riser sleeves allow molten metal in a riser to remain molten for a longer period before solidification.

REFERENCES:
patent: 3230056 (1966-01-01), Arant et al.
patent: 3300322 (1967-01-01), De Greer
patent: 3456914 (1969-07-01), Konrad et al.
patent: 3800111 (1974-03-01), Holmstrom

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