B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
182/149
B22D 1/00 (2006.01)
Patent
CA 2013128
FS 1421 ABSTRACT PURIFYING MOLTEN METAL The invention relates to a means of purifying molten metal, particularly molten steel during the continuous casting process. The molten metal flows in a tundish (1) passed one or more protuberances (4, 5) in the longitudinal sidewalls of the tundish, there being associated with the protuberances a partial barrier (8, 9) disposed towards the metal zone of arrival (6) and/or outlet (10), whereby the free-flow area of the tundish is reduced and metal flow velocity increased. In a preferred embodiment the metal flows underneath a first partial barrier, between a pair of diametrically-opposed sidewall protuberances and then over a second partial barrier. The metal flow is thereby directed upwards so that it can come into contact with a surface-covering layer of flux to remove inclusions.
Hitchens Ian
Keegan Neil John
British Stell Plc
Foseco International Limited
Gowling Lafleur Henderson Llp
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