Analysis of the existing and development of a new design of partitions for a four-strand continuous casting machine

The relevance of the work. The design of the equipment of the tundish-mould system of a slab continuous casting machine (CCM) is considered. The analysis of the work of the structures of the equipment of the ladle chambers with the use of overflow partitions is carried out. Their presence provides a given orientation of the submerged streams of liquid steel, in the process of metal entering from the steel-pouring ladle into the intermediate and subsequent outflow of liquid metal into the mold. Improving the equipment of the system is aimed at the rational arrangement of the submerged steel jets in the pouring chamber of the tundish and reducing the load acting on the pouring hole stoppers. Purpose of work. Improving the design of baffles for the four-strand tundish of a slab caster to improve the quality of the poured metal and ensure the stability of the casting process based on the analysis of the hydrodynamics of steel flows. Novelty. A baffle and sills of pouring chambers are proposed, which exclude dynamic impact on the stopper of the pouring hole, as well as the protection of the metal receiver of the receiving chamber of the tundish in the form of a complete module, compactly located in the receiving chamber. The result of the work. The main principles of designing in the tundish - moold system are developed on the basis of the results of the analysis of the main dependencies for the hydrodynamics of steel flows. Practical significance. The use of a new design of the tundish: baffles and a metal receiver of the receiving chamber help to reduce the steel flow rates to acceptable values, as well as improve the quality of the resulting continuously cast billet.