METHOD FOR DETECTING SLAG FLOW

This invention relates to a method for exactly detecting the inflow of slag into a molten steel stream when a molten steel is poured into an intermediate vessel such as a ladle or a tundish from a refining vessel such as a refining furnace or a ladle through a tap hole or a nozzle, by supplying an i...

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Bibliographic Details
Main Authors NOBUHIKO MORIOKA, KAZUHISA HAMAGAMI, SHIGERU OGURA
Format Patent
LanguageEnglish
Published 05.10.1989
Edition4
Subjects
CASTING
CASTING OF METALS
CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
CHEMISTRY
METALLURGY
METALLURGY OF IRON
PERFORMING OPERATIONS
POWDER METALLURGY
PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL
TRANSPORTING
TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
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Summary:This invention relates to a method for exactly detecting the inflow of slag into a molten steel stream when a molten steel is poured into an intermediate vessel such as a ladle or a tundish from a refining vessel such as a refining furnace or a ladle through a tap hole or a nozzle, by supplying an inert gas into the molten steel flow inside the nozzle from the side of the tap hole or the nozzle and detecting the inflow of slag on the basis of changes in the flow rate of the inert gas absorbed into the molten steel stream and a back pressure.
Bibliography:Application Number: AU19890032131