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叙述了有孤立热节铸件缩孔缺陷的现场工艺改进措施 ,对其产生的原因进行了分析和探讨。提高型壳焙烧温度和浇注温度以及降低钢水在型壳中的温度降可以减少和避免缩孔缺陷的产生
The article describes the improvement measures of on-site process for shrinkage defects of isolated hot-section castings, and analyzes the causes of the defects. Increasing the shell firing temperature and casting temperature and reducing the temperature drop of the molten steel in the shell can reduce and prevent the generation of shrinkage defects