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

資料類(lèi)型：

Word文件

關(guān)鍵詞：

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

資料大?。?/td>

516K

所屬學(xué)科：

分子表征

來(lái)源：

2007高分子材料加工國(guó)際學(xué)術(shù)會(huì)議（5.18-5.20 北京）

簡(jiǎn)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

上傳時(shí)間：

2007-09-04 14:51:34

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595

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