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US 4,730,659 AGranted
Casting apparatus
AssigneeIMI Refiners Limited
InventorsPeter J. Clark, Anthony W. Hudd, Stephen T. Bloor, Erling Roller
Life of this patent
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Abstract
Horizontal casting apparatus which includes a composite sleeve or ring at the entrance to the mould comprising a graphite inner portion and an insulating outer portion. The apparatus can optionally have an inert gas shield around the composite ring to protect the graphite component thereof against oxidation.
Claims7
In a mould assembly for the continuous horizontal casting of copper and copper alloys in which there is provided feed means to feed molten metal into a graphite lined horizontally disposed tube which forms the mould, the improvement which comprises:
- (i) a composite sleeve sealingly disposed axially between the feed means and the mould,
- (ii) the composite sleeve comprising a graphite inner ring and an outer ring of thermal insulating material engaged on the inner ring,
- (iii) the graphite inner ring being in contact with the graphite lining of the tube over part only of the thickness of the graphite lining, and
- (iv) the graphite inner ring forming a downstream facing annular shoulder at the entrance to the mould.
1 more element
Dependencies are inferred from the claim text.