Process and apparatus for direct chill casting

Details Process and apparatus for direct chill casting Process and apparatus for direct chill casting

2008-10-06

2011-11-15

Kerns, Kevin P (Department: 1735)

Metal founding

Means to shape metallic material

Continuous or semicontinuous casting

C164S487000

Reexamination Certificate

active

08056611

ABSTRACT:
In one embodiment, an apparatus for direct chill casting of metal includes an open ended mold cavity formed by a casting surface with an upper end and a lower end, a refractory sleeve located at the upper end of the mold cavity being adapted to receive molten metal, a coolant delivery system below the lower end of the mold for supplying coolant to chill the descending hot metal body, and a boron nitride ring mounted between the refractory sleeve and the peripheral wall of the mold cavity. Another embodiment further includes a downspout instead of a refractory sleeve that is located at the upper end of the mold cavity being adapted to receive molten metal having a flow control rod or a floating baffle where the flow control rod controls the amount of molten metal to enter the mold cavity.

REFERENCES:
patent: 4693296 (1987-09-01), King
patent: 5176197 (1993-01-01), Hamaguchi et al.
patent: 5518063 (1996-05-01), Wagstaff et al.
patent: 2 082 950 (1982-03-01), None

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