针对实型铸造常发生的诸多铸造缺陷，如铸件变形、铸型塌箱、浇不足、机械粘砂、热粘砂、残渣、气孔、夹渣、热裂、增碳和增氢等，分别提出了其产生原因和防止方法。着重指出，这些缺陷大多与ＥＰＳ模样的物化性能、涂料性质、型砂及浇注工艺参数有关，只要选择好涂料和涂层厚度，控制好ＥＰＣ模样的成型，并优化设计铸造工艺参数，将会获得优良精美的铸件产品。 Aimed at the many casting defects that often occur in real casting, such as casting deformation, mold collapse, insufficient casting, mechanical sticking sand, hot sticky sand, residue, porosity, slag inclusion, thermal cracking, carbonation and hydrogenation The causes and prevention methods. It is emphasized that most of these defects are related to the physical and chemical properties of EPS, the nature of the coating, the type of sand and the parameters of the casting process. As long as the thickness of the coating and coating is selected, the shape of the EPC is controlled and the design parameters of the casting process are optimized, Exquisite casting products.