耐热球铁管类铸件皮下气孔缺陷的成因及对策  

Cause of Formation and Countermeasure of Defect in Subcutaneous Gas Holes Heat-resisting Nodular Cast Iron Rubular Casting

作　　者：周文斌[1] 裴泽辉 刘志[1] 高一新[1] 李光辉[1] 

机构地区：[1]河南柴油机集团有限责任公司,河南洛阳471039

出　　处：《新技术新工艺》2007年第9期65-67,共3页New Technology & New Process

摘　　要：对导致耐热球铁管类铸件常出现皮下气孔铸造缺陷的影响因素:化学成分、黏结剂、浇注温度、型砂的透气性、浇注系统等进行了阐述。并根椐生产的实际情况提出了一些有效的防止措施。为了提高耐热球铁管类铸件的成品率,降低生产成本,解决皮下气孔的质量问题有巨大的实际意义。The paper expounds the following factors such as chemical composition,binder,casting temperature,Ventilate of casting sand,casting system and the like,which cause the fact that casting like heat-resisting nodular cast iron tubes often come about casting defect in subcutaneous gas holes and further provide some effective measure to protect in the light of actual producing process.

关 键 词：耐热球铁 管类铸件 皮下气孔 缺陷成因 对策 

分 类 号：TG174.44[金属学及工艺—金属表面处理]