大型中空箱体铸件的消失模铸造工艺研究

Study on Lost Foam Casting Process for Large Hollow Box Carsting

以某铸造公司的九模拉丝机箱体铸件作为研究对象,在其铸造过程中,为避免或减少浇不足、塌箱等缺陷的产生,采取立浇道浇注、安置抽气管等工艺方法。结果显示,铸造的九模拉丝机箱体铸件没有抬箱、涨箱和塌箱的现象,其表面和结构尺寸也都符合要求。

Taking a nine-mold drawing machine box product of a casting Co. as a research object, In order to avoid or reduce defects suchas poured short, or sand crushing, certain techniques such as vertical pouring gate, setting exhaust pipe and etc were taken. The result shows that the produced nine-mold drawing machine box casting is out of sand lifting, or sand expanding, or sand crushing. And its surface and structural dimensions are also in line with requirements.