Process for detecting outflow of slag

Details Process for detecting outflow of slag Process for detecting outflow of slag

C - Chemistry, Metallurgy

21

B

53/75

C21B 7/14 (2006.01) B22D 2/00 (2006.01) B22D 37/00 (2006.01) C21C 5/46 (2006.01) C21C 7/00 (2006.01)

Patent

CA 1337920

A method is disclosed for accurately detecting an outflow of a slag into a stream of a molten steel when the molten steel is poured from a first vessel such as a refining furnace or a ladle into an intermediate vessel such as a ladle or a tundish through a melt- discharging hole or a nozzle. At that time, an inert gas is fed into the stream of the molten steel in the nozzle through a side portion of the melt-discharging hole or the nozzle, and the detection is made based on a change in a flow rate of the inert gas sucked into the stream of the molten steel and/or in a back pressure.

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