Ladle covering compound

Details Ladle covering compound Ladle covering compound

1983-06-16

1984-07-31

Hayes, Lorenzo B.

Compositions: coating or plastic

Coating or plastic compositions

Molds and mold coating compositions

75 96, 106 3827, 106 84, 164123, 249111, 249197, 523140, 523145, B28B 734

Patent

active

044628340

ABSTRACT:
The exposed surface of a molten metal, ferrous or non-ferrous in a ladle is covered by an expanding insulating ladle covering compound that is capable of absorbing and removing non-metallic inclusions in a predictable volume. The compound includes burnt lime in amounts between 56% and 60% by weight, aluminum dross, including Al.sub.2 O.sub.3 in amounts between 22% and 30% by weight, fluorspar in amounts between 7% and 9% by weight, and acid treated graphite in amounts between 1% and 4% by weight.

REFERENCES:
patent: 2786771 (1957-03-01), Waterhouse et al.
patent: 3516821 (1970-06-01), Neu
patent: 3607234 (1971-09-01), Shimada et al.
patent: 3630267 (1971-12-01), Hlinka et al.
patent: 3923526 (1975-12-01), Takashima
patent: 4066446 (1978-01-01), Peck
patent: 4102690 (1978-07-01), Koper
patent: 4119468 (1978-10-01), Wiley
patent: 4261750 (1981-04-01), Foster

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