一、过去采取的方法过去我厂的铸件表面质量很不好,粘砂现象很严重。对此,我们采取过一些措施:(一)在造型面砂中加入适量的煤粉;(二)在砂型表面塗抹敷料(如抹石墨粉);(三)利用清砂滚筒清除铸件表面粘砂。这些措施虽然使铸件表面的光洁有些提高,但也存在着一些问题。像抹石墨粉时,粉尘较大,影响车间卫生与职工身体健康;另外, First, the method taken in the past I used to cast the casting surface quality is not good, sticky sand is very serious. In this regard, we have taken some measures: (a) in the modeling surface sand by adding an appropriate amount of coal; (b) in the sand surface dressing (such as wiping graphite powder); (c) the use of clear sand drum clear casting surface sticky sand . Although these measures improve the smoothness of the casting surface, there are still some problems. Like wiping graphite powder, dust larger, affecting plant health and staff health; In addition,