Refractory immersion spout

Details Refractory immersion spout Refractory immersion spout

1982-01-05

1984-01-03

Scherbel, David A.

Dispensing

Molten metal dispensing

222606, 164437, B22D 4108

Patent

active

044238339

ABSTRACT:
A refractory immersion spout includes a spout member having an upper portion and a lower portion. The spout member has a pouring channel and outlet openings extending laterally from the pouring channel. A refractory sleeve covers the outer surface of at least a portion of the lower portion of the spout member. The spout member comprises an extrusion product resulting from the extrusion of a material including 30-75% alumina and 10-30% carbon, with the carbon being aligned longitudinally of the spout member as a result of the extrusion. The sleeve comprises an isostatically compressed member formed of a highly refractory material. The thickness of the lower portion of the spout member is less than the thickness of the upper portion of the spout member, such reduction in thickness resulting from a reduction of the outer size of the spout member. The sleeve is cemented onto the outer surface of the lower portion of the spout member by an alumina-rich refractory cement.

REFERENCES:
patent: 4210264 (1980-07-01), Kondo
patent: 4257473 (1981-03-01), Mills

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