摘要
内燃机作为一种应用广泛的动力源,在轻量化及性能要求不断提高的背景下,大功率内燃机的缸体、缸盖等结构复杂的薄壁铸件逐渐趋向于使用蠕墨铸铁以满足其对力学性能和导热性能的要求。但蠕墨铸铁生产工艺控制较难把握,保证其质量一致性和稳定性存在着一定的难度。综述了蠕墨铸铁中石墨的生长机理,总结了蠕墨铸铁生产技术以及组织性能控制的研究现状。提出了蠕墨铸铁的生产技术存在的问题和解决措施,并给出了蠕墨铸铁研究的发展方向建议。
As a kind of widely used power source,the thin-wall castings with complex structure such as cylinder block and cylinder head of high-power internal combustion engine tend to use compacted graphite iron(CGI)to meet the requirements of mechanical properties and thermal conductivity under the background of continuous improvement of lightweight and performance requirements.However,it is difficult to control the production process of CGI and ensure its quality consistency and stability.The growth mechanism of graphite in CGI was reviewed.The production technology and microstructure and property control of vermicular graphite cast iron were summarized.The problems existing in the production technology of CGI and the development direction of CGI is suggested.
作者
孙玉成
孟迪
姜爱龙
郑洪亮
田学雷
SUN Yucheng;MENG Di;JIANG Ailong;ZHENG Hongliang;TIAN Xuelei(State Key Laboratory of Engine Reliability Weichai Power Co.,Ltd.,Weifang 261061,China;Key Laboratory of Liquid Structure and Heredity of Materials,Ministry of Education,Shandong University,Jinan 250061,China)
出处
《铸造技术》
CAS
2019年第4期417-422,共6页
Foundry Technology
关键词
蠕墨铸铁
应用
组织
冷却速度
研究进展
compacted graphite iron
application
microstructure
cooling rate
research progress
作者简介
孙玉成(1982-),山东莱西人、博士、工程师.主要从事铸造工艺及铸造CAE技术、快速成型技术方面的工作.电话:86-536-2298840,Email:sunyuc@weichai.com.
