China Plastics ›› 2008, Vol. 22 ›› Issue (05): 87-90 .DOI: 10.19491/j.issn.1001-9278.2008.05.019

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Optimum Design of Runner System for LCD TV Underprops without Weld Lines

XIAO Fang-cheng,OU Xiang-lin,hU Hai-tao,WU Shi-jian   

  1. College of Polymer Science and Engineering, Sichuan University, Chengdu 610065 ,China
  • Received:2008-03-09 Revised:1900-01-01 Online:2008-05-25 Published:2008-05-25

Abstract: The mechanism of weld line formation in LCD TV underprops molded by traditional runner system was analyzed. In a novel design of runner system, the melt would pass two gates and meet in a second runner and subsequently fill the mould in the form of an expansion flow. The melt flow process in the molding of LCD TV underprops was analyzed using Moldflow software. It was found that the novel design could effectually avoid the weld line formation in the products.

Key words: LCD TV underprop, no weld line technology, injection molding, runner system, optimum design