ZG0Cr13Ni4Mo铸造导叶孔洞缺陷的研究
Study on Porosity Defect of ZG0Cr13Ni4Mo Guide Vane Casting
匡 毅1， 沈仁坤2， 郭立辉1
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作者单位：1. 郑州机械研究所, 河南 郑州 450001; 2. 重庆云河水电股份有限公司, 重庆 400050
中文关键字：导叶；孔洞缺陷；分散缩孔；气孔
英文关键字： guide vane; porosity defect; dispersed shrinkage; gas-hole defect
中文摘要：对ZG0Cr13Ni4Mo铸造导叶热节附近出现的孔洞缺陷进行分析，结果表明，此类孔洞不是分散缩孔，而是内生式N2与CO复合型气孔缺陷。进而对此类缺陷提出相关防范措施。
英文摘要：The forming cause of porosity defect nearby hot spot of ZG0Cr13Ni4Mo guide vane casting was analyzed. The results show that the porosity is not dispersed shrinkage, but gas-hole caused by N2 and CO. Then responding measures availably solving gas-hole defect of the casting are put forward by practical production.