資源描述：
《基于數(shù)值模擬的微注射成型澆注系統(tǒng)優(yōu)化設(shè)計(jì)》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫(kù)。
1、Abstract(3)Designtherunnersystemwithcurvedrunnerbasedontheaboveresults．Establishthestraightrunnersystemforcomparingwiththefillingresult．Bycomparingthepolymermeltfillingeffectinthesetworunnersystems，wefoundthatthenovelrunnersystemisnotverygoodtoimprove
2、theimbalancedfilling．FromthereasonofimbalancedflowandoptimizethenovelCHIVerunnersystem．Comparedthefillingresultofoptimizedrunnersystemwiththeformerresultagain，wefoundtheoptimizedrunnersystemisgoodtoimproveimbalancedfilling．Thepressuredistributionineac
3、hcavityisidentical．(4)Analyzingtheprocessofpolymermeltflowinoptimizedruunersystembysettinggatingsystemasaresearchobjective，theresultdemonstratethat：thethicknessoflowtemperaturelayerdistributeinmidplaneofoptimizedrunnersystemismoreuniformthanthestraigh
4、trunnersystematthesameinjectionrate．Meltflowsthroughcurvedrunnertosub-runnercomposedoftwoshares，oneisfromtheinnerofpreviousrunnerandtheotherismeltnearwallofpreviousrunner．Becauseofintenseshearoccurredincurvedrunner,weakenthetemperaturedifferenceabouts
5、ub—channelscausedbymeltstream，sothecurvedrunnerimprovethefillingbalance；thedistributionrangeofmelttemperatureonsecondarysub-runnerofcurvedrunnel"issmaller20％thanthecorrespondingstraightrunners，wimtheinjectionrateincreasing,therangebecomessmaller．Analy
6、sisoffillingresultpolymermeltinmulti-cavitiesunderthesetworunnersystems，attheendingoffillingprocess，thepressure—distributionofthefourthcavitiesisimbalanceinthestraightrunnersystem．Inwhichthepressureofthetwocavitiesnearsprueishigherthantheothercavities
7、．Butthefourcavitiesintheoptimizedcurvedrunnersystemhavemorebalancepressure-distribution．Weanalyzedimbalancedfillinginthesetwortlnnersystemswitllthreedifferentmaterials，andfoundtheoptimizedrunnersystemhavegeneralsignificancetoimprovetheimbalancedflowof
8、thesematerials．KeyWords：Micro—injectionmolding，F(xiàn)illingbalancing，Curvedflow,Numericalsimulation,ShearheatIV目錄目錄摘要???????????????????????????????????．．IAbstract．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．?．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．
