中国铸造2007，Vol.4Issue(2)：124-127,4.
Optimization of casting conditions for heat and abrasion resistant large grey iron castings
Optimization of casting conditions for heat and abrasion resistant large grey iron castings
S. M. Yoo 1Y. S. Cho 2C. C. Lee 2J. H. Kim 3C. H. Kim 3J. K. Choi1
作者信息
- 1. Center for e-Design, Korea Institute of Industrial Technology, Yeonsugu Sondodong 7-47, Incheon 406-800, Korea
- 2. Kwanghee Casting Mfg. Co., Seogu Kyungseodong 381-75, Incheon 404-170, Korea
- 3. R&D Center, Doosan Engine Co., Ltd., Sinchondong 69-3, Changwon 641-370, Korea
- 折叠
摘要
Abstract
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 nodefects in the castings were found and the productivity could be distinctly increased. The mechanical properties satisfied also the specification demanded.关键词
grey cast iron/numerical simulation/marine engine/cylinder liner/chill/casting design optimizationKey words
grey cast iron/numerical simulation/marine engine/cylinder liner/chill/casting design optimization分类
矿业与冶金引用本文复制引用
S. M. Yoo,Y. S. Cho,C. C. Lee,J. H. Kim,C. H. Kim,J. K. Choi..Optimization of casting conditions for heat and abrasion resistant large grey iron castings[J].中国铸造,2007,4(2):124-127,4.
