清砂是铸造工作中最落后的工序,劳动强度大,条件差,生产率低。为改变这种状况,不少工厂采用水力清砂的新工艺。我省佛山水泵厂搞的比较早,去年我所在佛山召开了现场经验交流会。会后很多工厂都提出一定要把水力清砂搞上去,迅速改变我省清砂工序的落后面貌。 Sand-removing is the most backward process in foundry work. It has high labor intensity, poor conditions, and low productivity. In order to change this situation, many factories have adopted a new process of hydraulic sand removal. The Foshan Water Pump Factory in our province took a relatively early time. Last year, I held a field experience exchange meeting in Foshan. After the meeting, many factories proposed that they must use hydraulic sand cleaning to quickly change the backwardness of the sand cleaning process in our province.