Optimization of casting conditions for heat and abrasion resistant large grey iron castings

作     者：S. M. Yoo Y. S. Cho C. C. Lee J. H. Kim C. H. Kim J. K. Choi 

作者机构：Center for e-DesignKorea Institute of Industrial TechnologyYeonsugu Sondodong 7-47Incheon 406-800Korea Kwanghee Casting Mfg. Co.Seogu Kyungseodong 381-75Incheon 404-170Korea R&D Center Doosan Engine Co. Ltd. Sinchondong 69-3 Changwon 641-370 Korea 

出 版 物：《China Foundry》 (中国铸造（英文版）)

年 卷 期：2007年第4卷第2期

页      面：124-127页

核心收录：

学科分类：08[工学] 080203[工学-机械设计及理论] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 

主　　题：grey cast iron numerical simulation marine engine cylinder liner chill casting design optimization 

摘      要：Numerical simulation technology was applied for optimizing the casting design and conditions in large cast iron castings for marine engine. By the simulation of mold filling and solidification sequences the problems of the previous casting conditions were analyzed and marked improvements for large cylinder liner parts were derived from these results. Especially the amount and positions of chills were optimized to increase the mechanical properties and to minimize the shrinkage and microporosity in the castings. Ultrasonic testing, penetration testing and mechanical property testing were carried out for the parts with the modified casting conditions. It showed that no defects in the castings were found and the productivity could be distinctly increased. The mechanical properties satisfied also the specification demanded.