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Tandish nozzles are critical refractory components used in the steelmaking process, positioned at the bottom of the tundish to guide molten steel into the casting mold. These nozzles play a vital role in controlling the flow of molten metal, maintaining its temperature, and preserving the steel’s composition throughout the casting process. Different types and shapes of nozzles are utilized depending on the specific requirements of the casting design in steel smelting operations.
The product in focus is a glass nozzle featuring a zirconia core and an alumina-graphite body, designed specifically for use in the casting and steel industries. This tandem glass nozzle comprises two key parts: a zirconia core with 96% purity and a body made from a blend of alumina silicate and graphite.
The nozzle is engineered to withstand temperatures up to 1650 degrees Celsius. Given that molten steel flows directly through the zirconia core, it is crucial that the core’s inner diameter remains unchanged, even under intense conditions, to prevent expansion due to corrosion. Any deformation could alter the flow rate of molten metal, potentially leading to significant operational risks and financial losses.
These nozzles are available in various dimensions, with the primary variation being the inner diameter of the core, which determines the output flow rate of the molten steel. The inner diameter options range from 11 to 17 mm, offering flexibility to meet different production needs.
