摘要
通过对低温(-20℃、-40℃、-50℃、-60℃)球墨铸铁生产工艺进行系统的分析,对各工序提出了具体的控制措施。通过合理的化学成分配比及原辅材料选择,精细化熔炼及球化孕育控制,热处理工艺制定,提高了低温球墨铸铁QT400-18AL(-60℃)的力学性能,满足了轨道交通、风电、核电、南北极开发等领域高端装备制造业的需求。
Through analysis of the production process of ductile irons used at low temperature(-20 ℃,-40 ℃,-50 ℃,-60 ℃), some specific control measures were put forward for each process. Results indicated that the mechanical properties at low temperature(-60 ℃) of the ductile iron QT400-18 AL could be improved through accurately controlling chemical composition, the reasonable selection of raw and auxiliary materials, melting control, nodularizing& inoculation treatments, and proper heat treatment. meeting the requirements of high-end equipment manufacturing industries such as rail transit, wind power and nuclear power, etc.
作者
杨忠耀
杨金铭
孙清洲
周志强
YANG Zhong-yao;YANG Jin-ming;SUN Qing-zhou;ZHOU Zhi-qiang(Laizhou Xinzhongyao Machinery Co.,Ltd.,Yantai 261400,Shandong,China;School of Materials Science and Engineering,Shandong Jianzhu University,Jinan 250101,Shandong,China;CRRC Yongji Electric Co.,Ltd.,Yongji 044500,Shanxi,China)
出处
《铸造》
CAS
北大核心
2019年第1期60-62,共3页
Foundry
关键词
低温球墨铸铁
化学成分
熔炼控制
热处理
轨道交通
low temperature ductile iron
chemical composition
melting control
heat treatment
rail transit
