期刊文献+

利用聚合物PVT关系在线控制技术的实验研究 被引量:2

Experimental study of on-line control technique by polymer PVT relationships
下载PDF
导出
摘要 为了提高注射成型过程的控制精度,研发了一种利用聚合物PVT(压力-比容-温度)关系在线控制技术,分别在制品质量重复精度、模具温度的变化、制品质量变化、模腔熔体压力和温度的变化情况等方面做了详细的分析和讨论.研究发现,这种在线控制技术利用控制熔体压力和温度关系实现了对熔体比容的控制,从而可以大幅度提高制品质量重复精度. To improve the control accuracy of injection molding process,an on-line control technique by polymer PVT relationships was presented.Several issues,including the variation of mold temperature and its influence,the part mass repeatability and mass variation,the variation of cavity pressure and temperature,were analyzed.The specific volume control by controlling the relationship of pressure and temperature was realized by the technique,which could improve the part quality repeatability greatly.
出处 《材料科学与工艺》 EI CAS CSCD 北大核心 2011年第3期144-148,共5页 Materials Science and Technology
基金 国家科技支撑计划(2007BAF13B01) 国家自然科学基金(50973009)
关键词 注射成型 聚合物PVT关系 在线控制 模腔熔体温度 模具温度 injection molding polymer PVT relationships on-line control cavity temperature mold temperature
  • 相关文献

参考文献6

  • 1KAMAL M R, VARELA A E, PATTERSON W I. Control of part weight in injection molding of amor- phous thermoplastics [ J ]. Polymer Engineering and Science, 1999, 39(5) : 940 -952.
  • 2ORZECHOWSKI S, PARIS A, DOBBIN C J B. A process monitoring and control system for injection molding using nozzle - based pressure and temperature sensors [ J ]. Journal of Injection Molding Technolo- gy, 1998, 2(3) : 141 - 148.
  • 3Gao F, PATYERSON W I, KAMAL M R. Cavity pressure dynamics and selftuning control for filling and packing phases of thermoplastics injection molding [J ]. Polymer Engineering and Science, 1996, 36 (9): 1272-1285.
  • 4YAKEMOTO K, SAKAI T, MAEKAWA Z, HAMA- DA H. Adaptive holding pressure control based on the prediction of polymer temperature in a mold cavity [ C ]. Annual Technical Conference -- ANTEC, 1993, 39 : 2192 - 2202.
  • 5SHETH H R, NUNN R E. An adaptive control meth- odology for the injection molding process. Part 1 : Ma- terial data generation [J]. Journal of Injection Mold- ing Technology, 1998, 2(2) : 86 -94.
  • 6SHETH H R, NUNN R E. An adaptive control meth- odology for the injection molding process. Part 3 : Ex- perimental application [J]. Journal of Injection Mold- ing Technology, 2001, 5(3) : 141 -151.

同被引文献13

引证文献2

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部