通过采取中间包透气水口、长水口、塞棒及挡渣墙氩保护工艺,钢中点状不均匀性类缺陷减少了0.000 3%,钢中夹渣类缺陷减少了0.020%,粗大颗粒夹杂类缺陷造成的板坯废品量减少了0.003 2%,有效地降低了钢水连铸中的板坯缺陷,创造了可观的经济价值。 By adopting the tundish breathable nozzle, the long nozzle, the stopper rod and the argon shielding technology of the slag wall, the defects of the nonuniformity in the steel point are reduced by 0.0003%, the defects of the slag in the steel are reduced by 0.020% Defects caused by the reduction of the amount of slab scrap 0.003 2%, effectively reducing the slab defects in the continuous casting of molten steel, creating considerable economic value.