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重型机床铸件底返雨淋浇注系统实验研究
引用本文:杜世忠,朱平顺,张国祥,任虎平,陆初觉.重型机床铸件底返雨淋浇注系统实验研究[J].兰州理工大学学报,1988(2).
作者姓名:杜世忠  朱平顺  张国祥  任虎平  陆初觉
作者单位:甘肃工业大学机械工程一系 (杜世忠,朱平顺,张国祥,任虎平),甘肃工业大学机械工程二系(陆初觉)
摘    要:本文研究底返雨淋式浇注系统。通过充型过程的水力模拟实验,测定了内浇口的流速、压力以及流量分配等物理参数,观察了充型过程中各局部的流动景象;在此基础上,考虑了底注时的充型效果,对其流动特性进行了理论分析,并对几种铸造缺陷的形成机理做了探讨,得出了一些与顶注式浇注系统截然不同的结论,并实现了机床床身类铸件底返雨淋浇注系统的计算机辅助设计。

关 键 词:底返雨淋浇注系统  水模拟实验  机床铸件

Investigation into Bottom Pencil Gating for Heavy Lathe Bed Casting
Du Shizhong,Zhu Pingshun,Zhang Gouxiang,Ren Huping First.Investigation into Bottom Pencil Gating for Heavy Lathe Bed Casting[J].Journal of Lanzhou University of Technology,1988(2).
Authors:Du Shizhong  Zhu Pingshun  Zhang Gouxiang  Ren Huping First
Institution:Du Shizhong,Zhu Pingshun,Zhang Gouxiang,Ren Huping First Department of Mechanical Engineering Lu Chujue Second Department of Mechanical Engineering
Abstract:In the investigation presented in this paper, bottom pencil gating for heavy lathe bed casting was studied. Using hydraulic simulation, the distribution behavior of pressure, velocity, and flow through gates having the same cross-sectional area and located along the divide-runners with equal interals was measured; and flow pattern in every part of the gating was observed. According to the data obtained, the flow behavior was analysed and the forming mechanism of some casting defects was approached. The results obtained were completely different from that of top gating. A software for bottom pencil gating system was set up and tbe CAD (computer aided design) of the gating system for heavy lathe bed casting was obtained.
Keywords:bottom pencil gating  hydraulic simulation  lathe bed casting    
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