铸件的气孔由于气体的来源和形成过程不同,特征亦不同,可分为“侵入性皮内气孔”、“析出性气孔”和“反应性气孔”。本文根据我厂Z15T-10Dg50闸阀体产生的缺陷,对“侵入性皮内气孔”进行探讨。一、“侵入性皮内气孔”产生的部位及其特征“侵入性皮内气孔”大多单个出现在铸型上 Casting pores due to the gas source and formation of different processes, the characteristics are also different, can be divided into “invasive skin intracavity”, “precipitated pores” and “reactive pores.” This article based on the defects of our factory Z15T-10Dg50 gate valve body, on the “invasive intradermal foramen” were discussed. First, the “invasive intradermal stomata” and the characteristics of the site generated “invasive intradermal stomata” mostly single in the mold