Note hot water nozzle null for congruence drum type continuous casting device

摘要

PURPOSE:To prevent remelting of solidified part caused by poured molten metal flow in pouring basin by, for instance, communicating a pouring chamber in an outer nozzle and a molten metal flow buffering chamber through refractoriness partition plate having plural pieces of through holes. CONSTITUTION:In twin drum type continuous casting apparatus, molten metal caused to flow out from an inner nozzle 12 is caused to flow into the pouring chamber 16 in the outer nozzle 13 and further into the molten metal flow buffering chamber 19 through the through holes to thickness direction of the refractoriness partition plate 17. The molten flow is supplied into the pouring basin 52 from discharging holes 18 at both sides of cooling drums 50. Solidified shells grown on the drum surfaces S in both cooling drums 50 are progressed downward accompanied with rotation of the cooling drums 50 and integrated at kissing point K to complete the solidification of the whole thickness of a cast strip 53. Under condition of reliving flowing energy with three steps of buffering action through the partition plate 17 and the buffering chamber 19, and only to axial direction of the cooling drums 50, the molten metal supply into the pouring basin 52 can be executed. By this method, the remelting of the solidified shell and the remelting of solidified completing part can be prevented at the same time.