The dipping nozzle for continuous casting and the continuous casting method of using that

摘要

Like the revolving style grant dipping nozzles the self-excitation vibration of flow inside the mold is controlled without using complicated mechanism, the dipping nozzle for continuous casting which makes the quality improvement and high efficient casting of the slab surface section possible is offered. Being the nozzle which possesses with the cylindrical substance and the emission hole of the pair which opposes to that bottom adjacent side wall, it possesses the ridge condition projection 1 it extends parallel to the emission direction which is projected to the nozzle cross section in the bottom inside, being the dipping nozzle features that aforementioned bottom is cascade condition cavity form below 50mm above largest depth 5mm for first continuous casting which, and the nozzle which possesses with the cylindrical substance and the emission hole of the pair which opposes to that bottom adjacent side wall, vis-a-vis the emission direction which is projected to the nozzle cross section or the longitudinal section the vertical emission holeThe cross-sectional area, is a dipping nozzle features that it has decreased facing toward the exit for second continuous casting which.