摘要
介绍了球墨铸铁核乏燃料容器的国内外研究现状及容器铸件的制造技术要求,从铸造工艺、化学成分、原材料及熔炼处理、加强冷却条件等方面介绍了百吨级球墨铸铁核乏燃料容器的研究与实验进展。对百吨级球墨铸铁核乏燃料容器在不同铸造工艺下的凝固过程进行数值模拟分析,设计了45°模拟试块并实际测量了试块凝固过程中的温度场,解剖了模拟试块并测试其组织与性能。结果表明:在试验条件下,45°试块的凝固时间为3.42 h,其心部的常温力学性能均符合要求,-40℃冲击性能达到5.4 J/cm^2以上,满足容器铸件本体的指标要求,为百吨级球墨铸铁核乏燃料容器的生产研制提供了试验数据支持。
The domestic and abroad research status of ductile iron container for spent nuclear fuel and the technical requirements for container casting are reviewed in the paper.The research and development of 100-ton ductile iron container for spent nuclear fuel are introduced from several aspects of casting process,chemical composition,raw materials and smelting treatment,and stiengthening cooling conditions.The solidification process of 100-ton ductile iron container under different cooling conditions was analyzed by numerical simulation,the temperature curves of 45°test block during the solidification was measured,and the microstructures and mechanical properties of 45°test block were tested.The results show that the solidification time of 45°test block is 3.42 h,the mechanical properties can meet the requirements,and the impact properties at-40℃is 5.4 J/cm^2,which can meet the requirements of the container.The present research provides data reference for the production and development of 100-ton ductile iron container for spent nuclear fuel.
作者
李克锐
张亮亮
卫东海
曾艺成
李增利
陈昭
李桐
LI Ke-rui;ZHANG Liang-liang;WEI Dong-hai;ZENG Yi-cheng;LI Zeng-li;CHEN Zhao;LI Tong(Zhengzhou Research Institute of Mechanical Engineering Co.,Ltd.,Zhengzhou 450001,Henan,China)
出处
《铸造》
CAS
北大核心
2020年第7期709-715,共7页
Foundry
基金
核能开发科研项目:球墨铸铁核乏燃料运输容器研制。
关键词
百吨级
球墨铸铁
核乏燃料容器
模拟分析
组织性能
100-ton
ductile iron
container for spent nuclear fuel
simulation analysis
microstructure and properties
