摘要
针对制备难度高的大型高温高压离心锆泵铸件进行了铸造工艺探究。利用数控机加工制备石墨型,采用真空浇注,并设计合理的阻流截面比例来控制充型顺序,杜绝辅路浇口过早开启,实现液态金属充型时的高效排气,成功制备出结构尺寸大、壁厚、技术要求符合的高温高压锆泵体铸件。
The casting technology of large high temperature and high pressure centrifugal zirconium pump castings was studied.In this paper,the graphite type is prepared by CNC machining,the vacuum casting is adopted,and the reasonable proportion of choke section is designed to control the filling sequence,to eliminate the premature opening of the auxiliary gate,and realize the efficient exhaust when the liquid metal is filled,and the high temperature and high pressure zirconium pump castings with large structure size,wall thickness and technical requirements are successfully prepared,which meets the technical requirements..
作者
陈战考
李建华
殷莹
翟宇龙
CHEN Zhan-kao;LI Jian-hua;YIN Ying;ZHAI Yu-long(Xi'an Pump&Valve General Factory Co.,Ltd.,Xi'an Shaanxi 710025,China)
出处
《铸造设备与工艺》
2023年第3期8-12,共5页
Foundry Equipment & Technology
关键词
大型锆泵体
机加工石墨型
充型顺序
高效排气
large zirconium pump body
machined graphite type
filling sequence
efficient exhaust