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 pdf-document (160 kb) |
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| Summary |
NOZOLEX nozzle well filler is a free-flowing refractory
particular material used in the ladle or tundish sliding
gate to prevent skulling and steel freeze-off and ensure
easy opening at the start of casting. |
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| Description |
NOZOLEX is a highly refractory, granular product with
selected particle size and distribution which remains
flowable at high temperature, ensuring consistent and
trouble free ladle slide gate operation. |
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| Application |
For achieving the best results:
NOZOLEX should be pre-heated at around 100°C for
about an hour to drive out any physical moisture
The nozzle cavity should be cleaned of slag and any refractory
particles before application
The quantity of NOZOLEX to be applied should be carefully
determined so that the nozzle cavity is entirely filled,
with a slight mound at the nozzle top
NOZOLEX should be applied with a suitable applicator
to ensure that the product is applied at the proper place. |
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| Function |
Successful operation of ladle slide gate depends to a
large extent on the use of proper nozzle filling compounds
and operating conditions, as well as nozzle well block
geometry. To meet these demanding conditions, the nozzle
filling compounds should have sufficient refractoriness
to prevent sintering of the particles at high temperature,
and good flowability. |
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| Benefits |
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Good nozzle opening performance is ensured
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The need for oxygen lancing for opening the slide
gate nozzle is minimized |
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Well block and nozzle life is increased
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The life of the slide gate plate is extended
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Due to good nozzle opening performance, NOZOLEX
drastically reduces the incidence of ladle return
from the casting platform.
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