潮型铸造时,由于冷铁不容易上涂料,因此使用时铸件常出现以下两种缺陷:(1)铸件容易形成局部白口;(2)冷铁表面容易反潮或生锈,在浇注过程中形成气体,而使铸件产生气孔等。我厂应用快干涂料涂在冷铁表面,经过实践证明效果良好,基本上解决了上面两个问 Tide-type casting, the cold iron is not easy to paint, so the use of castings often appear the following two defects: (1) the casting is easy to form a local white; (2) cold iron surface easily reverse tide or rust in the casting process In the formation of gas, leaving the casting porosity and so on. I plant application of quick-drying paint coated on the surface of chilled iron, proved effective by practice, basically solved the above two questions