Continuous casting of reactionary metals using a glass covering

Details Continuous casting of reactionary metals using a glass covering Continuous casting of reactionary metals using a glass covering

2008-01-29

2008-01-29

Johnson, Jonathan (Department: 1725)

Metal founding

Means to shape metallic material

Continuous or semicontinuous casting

C164S256000, C164S338100, C164S514000, C164S268000

Reexamination Certificate

active

07322397

ABSTRACT:
A seal for a continuous casting furnace having a melting chamber with a mold therein for producing a metal cast includes a passage between the melting chamber and external atmosphere. As the cast moves through the passage, the cast outer surface and the passage inner surface define therebetween a reservoir for containing liquid glass or other molten material to prevent the external atmosphere from entering the melting chamber. Particulate material fed into the reservoir is melted by heat from the cast to form the molten material. The molten material coats the cast as it moves through the passage and solidifies to form a coating to protect the hot cast from reacting with the external atmosphere. Preferably, the mold has an inner surface with a cross-sectional shape to define a cross-sectional shape of the cast outer surface whereby these cross-sectional shapes are substantially the same as a cross-sectional shape of the passage inner surface.

REFERENCES:
patent: 2858586 (1958-11-01), Brennan
patent: 2903759 (1959-09-01), Brennan
patent: 3396778 (1968-08-01), Jensen et al.
patent: 3470939 (1969-10-01), Coad
patent: 3888300 (1975-06-01), Guichard et al.
patent: 4024309 (1977-05-01), Pender
patent: 4391319 (1983-07-01), Heaslip et al.
patent: 6868896 (2005-03-01), Jackson et al.

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