连铸机在浇铸用铝脱氧的钢时,由于浇注时间很长,往往随浇注时间的增长,它的中间包水口逐渐被堵塞,钢流愈来愈细,最后甚至可以完全被堵死。堵塞物在生成一段时间后,可能突然脱落,被钢流冲入结晶器,造成钢流不稳,钢质恶化。六十年代以来,由于连铸工艺在国外的迅速 Caster casting aluminum deoxidation of steel, the casting time is very long, often with the pouring time, its tundish nozzle is gradually blocked, the steel flow more and more fine, and finally can be completely blocked. After the blockage is generated for a period of time, it may suddenly fall off and be dumped into the mold by the steel flow, resulting in unstable steel flow and deterioration of the steel. Since the sixties, due to the continuous casting process abroad rapidly