注塑成型與模具知識(shí)介紹(編輯修改稿)
2025-02-23 16:49 本頁面
【文章內(nèi)容簡介】 s 在分子鏈之間Raise Temperature of Polymer TGLocked 固態(tài)Entanglements Stiff Flow難于流動(dòng) Easier Flow 較易流動(dòng)Melt Temperature 熔融溫度35302520151050.030 .060 .090 .120 .150 .180 .210 .240Wall Thickness in Inches壁厚 (In)MeltFlow(in.)LEXAN?101550 deg F.101 600 deg. FIncreased Melt Temperature yields increased However, Too High a Melt Temperature May Cause ,過高熔融溫度造成降解How is heat added to the polymer?外熱如何作用于高分子材料Electrical Heat: 電加熱Heater Bands 加熱帶Mechanical Heat 機(jī)械熱Screw Speed 螺桿速度Back Pressure 背壓Injection Pressure / Speed 注射速度 /壓力Injection MoldingBarrel UnitThe Reciprocating Screw(Filling) ThroatHeating CoilsNozzleHopperScrewBarrelForce, TorqueFrom Injection Unit料筒組件回轉(zhuǎn)式螺桿噴嘴螺桿加熱料斗加料口料筒來自注塑單元的力和力矩Drying? Drying temperature and time are an important key factor for good products in our production在生產(chǎn)得到好的產(chǎn)品， 干燥溫度和時(shí)間是一重要因素? Good Parts 良品 Typical Lexan (PC): 典型 PCMoisture Level: Less than % 121 0 C/3 ~ 4 Hrs水分含量小于 % 121 0 C/3 ~ 4 HrsDrying Temperature烘干溫度Injection Molding ProcessPart Cooling and SolidificationHot MeltCooled MoldSolid Part制件冷卻和固化熱熔體溫度較低的模具固化的制件Mold TemperatureMold Temperature is critical in
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