摘要
简述了ф760 mm大断面活塞的生产过程,解决单件大活塞生产中的砂箱、起吊高度、防止漏箱、材质等方面的问题。通过合理地设计造型、熔炼、浇注等工艺,结合一些大断面球铁件的生产经验,从原辅材料的选择,铁液化学成分的控制,合适的球化和孕育处理以及适当添加微量元素等方面控制措施,解决厚大断面球铁件易出现石墨球粗大、石墨球数少、开花状石墨、蠕虫状石墨等问题。应用这些措施,生产出了各项性能指标都合格的大活塞。
This paper briefly introduces the production process of large section of the piston diameter of 760 mm, solve the sand box, single piston in the production of large lifting height, to prevent leakage of tank, material and other aspects of the problem; through reasonable design, smelting, casting and other processmodeling, combined with the production of some heavy section ductile iron castings experience, from the raw and auxiliary materials selection, control of chemical composition of molten iron, suitable spheroidization and inoculation,the appropriate add trace elements such as measures to control, to solve theheavy section ductile iron parts prone to graphite, graphite ball number is lessbulky, blossom graphite, vermicular graphite and other issues. The application of these measures, the production out of the big piston various performance indicators are qualified.
出处
《中国铸造装备与技术》
CAS
2015年第6期24-27,共4页
China Foundry Machinery & Technology
关键词
厚大断面活塞
砂箱
造型
熔炼
材质
Thick Section Piston
Sand Box
Modeling
Melting
Material
