聚合物擠出口模熔體流動(dòng)數(shù)值模擬分析.pdf

1、青島科技大學(xué)碩士學(xué)位論文聚合物擠出口模熔體流動(dòng)數(shù)值模擬分析姓名：張延恒申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：化工過程機(jī)械指導(dǎo)教師：唐躍20030611塞魚塑墮些旦壁墮整墮墊墼焦堡墊坌塑一第五～第六章為實(shí)驗(yàn)研究部分，通過改變機(jī)頭形狀、物料種類和螺桿轉(zhuǎn)速對(duì)擠出機(jī)頭中的熔體流動(dòng)進(jìn)行了實(shí)驗(yàn)研究，對(duì)實(shí)驗(yàn)數(shù)據(jù)進(jìn)行了分析找出了最佳擠出條件。并利用測(cè)得的數(shù)據(jù)對(duì)計(jì)算機(jī)模擬的結(jié)果進(jìn)行了驗(yàn)證。關(guān)鍵詞：擠出口模塑料熔體有限元分析數(shù)值模擬NumericalSimulation

2、ofPolymericMeltFlowinDiesABSTRACTSinglescrewextrusionisdefinedasacontinuousprocessinwhichpolym融cmaterialsarechangedtoaviscousform，mixed，pumpedandpressurizedusingascrewandshapedtofinalformItisastandardoperationinthepolyme

3、rprocessingfieldandiswildlyusedformanyproducts：profiles，fibers，strips，films，etcItisalsoemployedinavarietyofmanufacturingfunctions，forexample，injectionmouldingandblowmouldingItisreportedthattheextrusionprocessingheadtheli

4、stofallinplasticprocessingWiththedevelopmentofthecomputertechniques，thecomputertechnologyismoreandmoreusedinpolymerprocessingForthecomplexityoftheextrusionmoulding，energeticsandtheologymustbeusedtostudyitIntheextrusionmo

5、ulding，thequalityandquantityoftheproductsareaffectedviolentlybythedistributionofthetemperature，pressureandvelocityInrecentyears，thedevelopmentofCAE(ComputerAidedEngineering)inpolymerprocessinghasbeenremarkable，anditisexp

6、ectedtobemorerealisticinpolymerprocessingTheaimofthepresentworkistodevelopanewcomputermodeltostlldytheflowofapolymermeltthroughthemeteringregionofadieandinthisarticle，afiniteelementmethodandcomputerprogramareemployedInch