一、铸件内在渗漏缺陷修复有些铸件(铸铁、铸钢及有色金属件)在使用过程中,要求具有一定的耐压密封性。但气缸体、缸盖、闸阀体、水泵体、密封容器罐等铸件,往往因零件本身结构的特殊性或铸造工艺不当,致使铸件存在不同程度的穿透性缩孔、缩松缺陷、从而直接影响铸件的使用性能。有些渗漏在毛坯加压检查中就可发现,但存在于内部的大量隐蔽性缺陷,只有当铸件毛坯在加工中才 First, the inherent casting defect repair Some castings (cast iron, cast steel and nonferrous metal parts) in the course of the request requires a certain pressure tightness. But the cylinder block, cylinder head, gate valve body, pump body, sealed container cans and other castings, often due to the particularity of the structure of the part itself or improper casting process, resulting in varying degrees of penetration of castings have shrinkage, shrinkage defects, and thus direct Affect the performance of castings. Some of the leaks can be found in the blank check, but there is a large number of hidden defects inside, only when the casting blank in the process