水桶注塑模設(shè)計說明書1907

1計2345Wildfire4.067塑件的結(jié)構(gòu)分析表注塑機參數(shù)m00mm68擇澆口結(jié)構(gòu)形式的選擇9寸的確定表直澆口主流道參考尺寸dd3d4DD6D8的設(shè)計表主流道直徑參考表0~2030.520~404140~15051150~30062300~50082500~1500102圖主流道的幾何關(guān)系圖模具主視圖頂出系統(tǒng)設(shè)計yu表模板各部分主要結(jié)構(gòu)尺寸擇仿真加工驟參考資料2003-7.174-175.2002-9.2000-10.2005-4.致謝Pro/E、Cimatron,Secretofsuccessfulthin-wallmoldinghavingawallthicknesslessthan1mm.forlargeautomotiveparts,ngtimes,andmodificationtopart-ejectionandgatingarrangements.TheseprocesschangeshaveinturnpromptednewrationsinmoldmachineryandpartdesignMachineryconsiderationsStandardmoldingmachinerycanbeusedformanythin-wallthinnerparts.than0.5secandinjectionpressuresgreaterthan30,000pertydegradation.Fasterfillingandhigherarerequiredtodrivemoltenthermoplasticislessmaterialtocool.Cycletimescandropby50%withaggressivemHotrunnersandheatedspruebushingsareoftenusedinthin-wallmoldingtohelpminimizecycletime.inconventionalapplications,butduetothehigherpressuresofmoldwearwheninjectedintothecavityathighspeeds.]Infact,thethin-wallapproachisfrequentlyusedtosavemoneyonbebuilt,therebysavingmoneyoverthelifeofaprogram.Herearesomemoretipsontooldesignforthinwalls:Foraggressivethin-wallapplications,usesteelharderthanP20,especiallywhenhighwearanderosionareexpected.H-13andD-2steelshavebeensuccessfulingateinserts.Moldinterlockssometimescanstaveoffflexingandmisalignment.breakage.tiesandspruepinpushing.Considerstrategicplacementofsleeveandbladeknockouts.InjectionMoldingTroubleshooterAvoidPitfallsinMulti-MaterialingTheseconditionscanoccurwhetherthematerialscombinationsisandregrind,pigmentedandunpigmented,etc.subjectthatcannotbeexploredthoroughlyinashortarticle.Thethemoreimportantfactorsbearabriefdiscussion.dtemperaturesoft,thesecondmaterialcancompressandflashoverthefirstonmachineoneandinsertingitintothemoldofthesecondhrotatingtable.Evenwhenusingcompatiblematerials,thedelaytimetobetoocold.Ahigherparttemperatureisrecommendedforbetteraffected.Apartfromprocessconditions,materialchoice