Composite refractory member

Details Composite refractory member Composite refractory member

1987-04-15

1989-06-27

Kastler, Scott

Dispensing

Molten metal dispensing

Flow controllers or assists

266287, B22D 4108

Patent

active

048421723

ABSTRACT:
A composite refractory member includes at least one insert formed of an oxide ceramic material having a high resistance to molten material. The insert defines a discharge opening or other molten material contacting surface. A base structure encloses and supports the insert and is formed by molding a chemically setting refractory concrete including a refractory granulate of low-iron sintered magnesia with a MgO content of over 80 weight percent. Mold cores extend into the refractory concrete during molding such that the molded structure has expansion joints which later are filled with mortar.

REFERENCES:
patent: 4314659 (1982-02-01), Shapland
patent: 4586699 (1986-05-01), Bachmann et al.
patent: 4717128 (1988-01-01), Bruckner et al.
patent: 4728013 (1988-03-01), Winkelmann et al.
Special Refractories, Henson, American Foundryman, pp. 64-70, 5/47.

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