Casting steel strip
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United States of America Patent
Stats
-
Jul 10, 2001
Issued Date -
N/A
app pub date -
Jun 15, 1999
filing date -
Oct 28, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Continuous casting of steel strip in twin-roll caster comprising casting rolls (16). Molten steel is delivered by a delivery system comprising a distributor (18) and delivery nozzle (19) to casting pool (68) supported above the nip (69) between the casting rolls (16) which are rotated to deliver a solidified steel strip (20) downwardly from the nip. The casting pool is confined by side closures (56) comprising refractory plates to contact and dam the molten steel. To minimise reactions between carbon in the pool closures with oxygen containing compounds in the casting pool the side closure plates are made of refractory material containing a major proportion of a refractory aggregate and a minor proportion of graphite of at least 96% purity in the range of 10 to 30% by weight and an anti-oxidant additive being aluminium or an alloy thereof. The refractory aggregate may be comprised mainly of alumina.
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