The Influence of Nozzle Port Opening Width Parameter in Foreside-Control High Speed Injection Molding on Thin-wall Products，2007高分子材料加工国际学术会议（5.18-5.20 北京）-中国聚合物网,论文下载

The Influence of Nozzle Port Opening Width Parameter in Foreside-Control High Speed Injection Molding on Thin-wall Products

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Word文件

关键词：

The  Influence  Nozzle  Port  Opening  Width  Parameter
Foreside  Control  High  Speed  Injection  Molding  Thin
wall  Products

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516K

所属学科：

分子表征

来源：

2007高分子材料加工国际学术会议（5.18-5.20 北京）

简介：

Thin-wallinjectionmolding(TWIM),whichisdevelopingrapidlybasedonConventionalInjectionMolding(CIM),hasbecomeanimportantmanufacturingtechnologyfor3Cplasticindustry.Inordertoimplementingthin-wallpartinjectionmolding,injectionmoldingmachineshavetobeequippedwithahydraulicaccumulatorsystemtofillsuchthin-wallcavities.Asaresult,thecontrollabilityofthehydraulicsystembecomescritical.Inaddition,becauseofhighscrewadvancespeed,theinertiacannotbeignoredandscrewwillvibrateaboutitsfixingposition.Anewtypeofinjectionsystemwithaquickresponseinjectionsystembasedongiantmagnetostrictivematerials(GMM)isproposedinthispaper.Theinjectionsystemiscapableofimplementingthin-wallinjectionmoldingthroughcontrollingportwidthofnozzle,meanwhile,meltswithsufficientpre-compresspotentialenergyandconstantinjectionmolding.Theinfluenceofnozzleportopeningwidthparameterinforeside-controlhighspeedinjectionmoldingofthin-wallproductsoninjectionspeedunderdifferentpre-compressandinjectionpressureswasinvestigatedinthispaper.Variationsofthepercentageoffillingareawhichusedforevaluatingthemeltfrontadvancespeedwithnozzleportopeningwidthundervarioushydraulicpressurewasexplored.Theresultsobtainedfromthisstudyaresignificantinestablishmentofcontroltheoryforforeside-controlhighspeedinjectionmolding.

作者：

Xie Pengcheng, Ding Yumei, Chen Jun, Lai Shixing, Gen Libo, Yang Weimin

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2007-09-04 14:51:34

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