STRUCTURE OF TUNDISH FOR GUARANTEEING MANUFACTURE OF CLEAN STEEL DURING ECCENTRIC INJECTION BETWEEN LADLE AND TUNDISH IN CONTINUOUS CASTING PROCESS

摘要

PURPOSE: A structure of tundish is provided which reduces steel slab quality difference between both molds generated during injection of molten steel into eccentric position of tundish instead of center of tundish when injecting molten steel into tundish from ladle by changing structure of dams and weirs in tundish in the continuous casting process. CONSTITUTION: In a tundish(2) of the continuous casting process in which molten steel is cooled as molten steel is passing through molds(3) and second cooling section(6) after molten steel(4) in ladle(1) is injected into tundish through shroud nozzle(5), the structure of the tundish is characterized in that weirs(10) and dams(9) are sequentially positioned at a side of the tundish where a distance between the shroud nozzle and submerged entry nozzle is long, height of the dam is 0.25 to 0.31 H0, wherein the H0 is height of the surface level of molten steel, the dams and the weirs are positioned in order of dam, weir and dam again at a side of the tundish where a distance between the shroud nozzle and the submerged entry nozzle is short, and a residual molten steel discharge hole is formed a central lower part of the dam close to the submerged entry nozzle.