使用混配土(Additrol)替代煤粉的型砂工艺,结合KW静压造型线铸件生产对型砂性能的实际要求,对型砂配方(如新砂、膨润土的加入量)进行了调整,对型砂性能如紧实率、水分、含泥量等参数进行了调整和优化。经生产验证,该工艺可提高型砂的综合性能,降低造型废型率、铸件废品率,降低了生产成本。 Using the sand with Additrol instead of pulverized coal and the practical requirements for the performance of the sand produced by KW static pressure forming line casting, the formulation of sand (such as the addition of new sand and bentonite) is adjusted. Real rate, moisture, mud content and other parameters were adjusted and optimized. The production proved that the process can improve the overall performance of sand, reduce the molding waste rate, casting scrap rate, reducing production costs.