排气管铸件缩孔、缩松缺陷的解决
Solving of Porosity and Shrinkage Defects in Exhaust Manifold Casting
赖华清1， 王亚斌2， 刘安凌２
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作者单位：（1.常州信息职业技术学院 机电工程系，江苏 常州 213164；2. 东风汽车公司铸造一厂,湖北 十堰 442048）
中文关键字：排气管； 缩孔； 缩松； 铸造工艺
英文关键字：exhaust manifold; shrinkage hole; shrinkage porosity; casting process
中文摘要：通过对排气管铸件结构和原铸造工艺方案的分析，找出了铸件缩孔、缩松问题的原因。应用铸件均衡凝固技术，采取合理的工艺改进措施，有效地解决了生产初期铸件缩孔、缩松缺陷难题，取得了显著的经济效益。
英文摘要：Analyzing the part structure and the original casting process of exhaust manifold， the reasons for shrinkage and porosity were found. Applying the theory of proportional solidification, adopting the reasonable process measures, the casting defects, such as shrinkage and porosity during the trial production were effectively solved, the remarkable economic benefit was gained．