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US 6,550,528 B1Granted
Hot-top type continuous casting machine for hollow billet
AssigneeFurukawa Electric Co., Ltd.
InventorsTakahiko Ichiki, Nobuharu Shigemitsu, Katsumi Miyamoto, Masahiro Ito
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Abstract
Provided is a hot-top type continuous casting machine for stably producing hot metal hollow billets having a high quality, which comprises: (a) a molten metal holding part fed therein with molten metal; (b) a ring mold arranged being connected to the molten metal holding part; and (c) a core inserted in the hollow mold from thereabove, and composed of a low heat-conductive upper core and a high heat-conductive lower core to be cooled by coolant circulating therethrough.
Claims9
A hot-top type continuous casting machine for casting a hollow billet, comprising:
- (a) a molten metal holding part into which molten metal is fed;
- (b) a ring mold arranged being connected to the molten metal holding part;
- (c) a core, being provided for forming a hollow of the hollow billet, adapted to be inserted downwardly in the ring mold, which comprises a low heat-conductive upper core and a high heat-conductive lower core being adapted to be cooled by a coolant circulated therethrough;
- and,
- (d) a passage extending from the top of the core through the core to the lower core for feeding the coolant and another passage extending the top of the core through to the lower core for discharging the coolant to the top of the core after cooling the lower core.
2 more elements
Dependencies are inferred from the claim text.