摘要
保护件主要用于石油钻探机,起安全保护作用。以球墨铸铁保护件为研究对象,通过Pro/E和ProCAST相结合对该铸件原熔模铸造浇注过程进行数值模拟,找到产生缩孔、缩松等铸造缺陷的原因。改进浇注系统,并研究了浇注温度、充型速度、型壳预热温度对铸件质量的影响,通过分析获得最佳的工艺参数,铸件的浇注温度、充型速度、型壳预热温度分别为1300℃、0.460 m/s、800℃。对经过优化后的结果进行数值仿真,发现铸件的缩孔率值大幅度降低,并通过实际铸造生产验证。
The protective parts are mainly used in oil drilling machines and play a role in safety protection.Taking ductile iron protective parts as the research object,the casting process of the original investment casting was numerically simulated by combining Pro/E and ProCAST to find out the causes of casting defects such as shrinkage and dispersed shrinkage,improve the casting system,and study the effects of pouring temperature,filling speed and shell preheating temperature on casting quality.The optimal process parameters were obtained through analysis.The pouring temperature,filling speed and shell preheating temperature are 1300℃,0.460 m/s and 800℃,respectively.Numerical simulation was conducted on the optimized results,and it was found that the shrinkage rate of the casting was significantly reduced,which was verified through actual casting production.
作者
张晓光
彭彬
仓欣蕾
李远志
ZHANG Xiao-guang;PENG Bin;CANG Xin-lei;LI Yuan-zhi(College of Mechanical Engineering and Automation,Liaoning University of Technology,Jinzhou 121001,Liaoning,China)
出处
《铸造》
CAS
北大核心
2023年第11期1501-1505,共5页
Foundry
基金
辽宁省科学技术计划项目(省博士科研启动基金计划项目:2021-BS-261)。
关键词
熔模铸造
球墨铸铁
保护件
investment casting
ductile iron
protective parts
