| Summary: | A technique is being developed for the fast
measurement of the liquidus temperature of
synthetic and industrial slags. The
technique involves using a type K
thermocouple centred within a nickel
cylinder to record the heating profile after
immersion of the cylinder into a molten
bath. Upon immersion of the cold cylinder
into the bath, a layer of slag freezes onto the
surface. When this melts away, the rate of
heating of the cylinder increases, and the
point of this increase provides an estimate of
the liquidus temperature of the slag. The
temperature data are logged and analysed
using a PC-based system, to detect this
point The technique is illustrated here for
iron saturated fayalite slags with various
additions of lime and magnesia, as well as
for industrial smelting slags.
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