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Radex is a range of insulating cover powders designed for use in the ladle or tundish to prevent heat loss during casting. Radex is a ver y lowdensity, free-flowing powder, formulated to reduce heat loss to a minimum. It is normally supplied in handleable bags for the Ladle/Tundish.
 ApplicationRadex powders are usually added to the ladle surface just before it leaves the secondary refining station to make its way to the continuous casting machine. In the tundish, it is added when the steel reaches 1/3 to 2/3 full. The application rate is sufficient to give a 25mm layer of powder on the surface of the steel. In the case of the tundish, it should be continually maintained to provide a ‘black’ cover throughout the casting process.
FunctionTemperature control of the steel is vital in continuous casting, particularly over long casting periods. Casting should be conducted as close as possible to ensure minimum segregation. To reduce the need to cast with high superheat, it is essential to have an efficient ladle or tundish insulating cover. The application of Radex powders minimises heat loss from the ladle and the tundish.
 Benefits