HOLLOW JET NOZZLE FOR CONTINUOUS STEEL CASTING

The invention relates to a continuous casting equipment for a flow of liquid steel from a tundish (2) into an ingot mould (1) through a hollow jet nozzle or HJN nozzle, comprising a deflector or dome (6) for diverting the incoming metal towards the side walls of the nozzle, said nozzle further inclu...

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Bibliographic Details
Main Authors DAMASSE JEAN MICHEL, NAVEAU PAUL
Format Patent
LanguageEnglish
Korean
Published 09.09.2009
Subjects
CASTING
CASTING OF METALS
CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
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Summary:The invention relates to a continuous casting equipment for a flow of liquid steel from a tundish (2) into an ingot mould (1) through a hollow jet nozzle or HJN nozzle, comprising a deflector or dome (6) for diverting the incoming metal towards the side walls of the nozzle, said nozzle further including means for injecting a metallic powder or a finely ground solid metallic material (13, 13A, 14) under said dome (6) in an injection area (15), and means for injecting a non-oxidant gas (16, 17) for creating and maintaining the hollow jet, characterised in that the powder injection means (13, 13A, 14) are independent and physically separated from the non-oxidant gas injection means (16, 17) so that during the operation, the non-oxidant gas is not used as a vector for powder injection.
Bibliography:Application Number: KR20097012282