针对某钢厂双辊薄带表面缺陷进行了两种水口选型的液面波动水模拟实验研究,结果表明,所实验的两种水口中,改进后的Ⅰ型水口相对较好。在其他条件相同时,Ⅰ型水口的混合情况最好、波动幅度总体较小,弯月面较为稳定。实践证明,薄带表面缺陷发生率由18.65%降低到了目前的5.52%,缺陷率大幅降低,满足了客户更高层次的需求。 Aiming at the double-roll strip surface defects of a steel mill, two kinds of nozzle variations were simulated and analyzed. The results show that the improved type I nozzle is relatively good among the two tested nozzles. In other conditions are the same, I type nozzle mixing the best, the overall volatility is smaller, the meniscus is more stable. Practice has proved that the incidence of ribbon surface defects reduced from 18.65% to the current 5.52%, a substantial reduction in defect rate to meet the customer a higher level of demand.