| 摘要 |
PURPOSE: A submerged nozzle for continuous casting is provided to extend the service life of a tundish and prevent a submerged nozzle from being blocked by creating alumina using low melting point compound. CONSTITUTION: A submerged nozzle(10) for continuous casting comprises a CaO-ZrO2-C system material refractory. The CaO-ZrO2-C system material refractory is formed in an inner wall(11) of a submerged nozzle. The CaO-ZrO2-C system material refractory reacts with alumina in molten steel during continuous casting and creates low melting point compound. The CaO-ZrO2-C system material refractory is used as the supply source of CaO.
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