模具外文翻译-可适应系统的电动温度调节模具注塑成型.doc

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1、宁波大红鹰学院毕业设计（论文）外文翻译所在学院：机电学院班级：姓名：学号：指导教师：合作导师：2012年10月8日AdaptivesystemforelectricallydriventhermoregulationofmouldsforinjectionmouldingAbstractOneofthebasicproblemsinthedevelopmentandproductionprocessofmouldsforinjectionmouldingisthecontroloftemperaturecondit

2、ionsinthemould.Precisestudyofthermodynamicprocessesinmouldsshowed,thatheatexchangecanbemanipulatedbythermoelectricalmeans.Suchsystemupgradesconventionalcoolingsystemswithinthemouldorcanbeastandaloneapplicationforheatmanipulationwithinit.Inthepaper,theauthorswi

3、llpresentresultsoftheresearchproject,whichwascarriedoutinthreephasesanditsresultsarepatentedinA6862006patent.Thetestingstage,theprototypestageandtheindustrializationphasewillbepresented.Themainresultsoftheprojectweretotalandrapidon-linethermoregulationofthemo

4、uldoverthecycletimeandoverallinfluenceonqualityofplasticproductwithemphasisondeformationcontrol.Presentedapplicationcanpresentamilestoneinthefieldofmouldtemperatureandproductqualitycontrolduringtheinjectionmouldingprocess.1.Introduction,definitionofproblemDeve

5、lopmentoftechnologyofcoolingmouldsviathermoelectrical(TEM)meansderivesoutoftheindustrialpraxisandproblems,i.e.atdesign,toolmakingandexploitationoftools.Currentcoolingtechnologieshavetechnologicallimitations.Theirlimitationscanbelocatedandpredictedinadvancewith

6、finiteelementanalyses(FEA)simulationpackagesbutnotcompletelyavoided.Resultsofadiversestateoftheartanalysesrevealedthatallexistingcoolingsystemsdonotprovidecontrollableheattransfercapabilitiesadequatetofitintodemandingtechnologicalwindowsofcurrentpolymerprocess

7、ingtechnologies.Polymerprocessingisnowadayslimited(intermofshorteningtheproductioncycletimeandwithinthatreducingcosts)onlywithheatcapacitymanipulationcapabilities.Otherproductionoptimizationcapabilitiesarealreadydriventomechanicalandpolymerprocessinglimitation

8、s[3].1.1.ThermalprocessesininjectionmouldingplasticprocessingPlasticprocessingisbasedonheattransferbetweenplasticmaterialandmouldcavity.Withincalculationofheattransferoneshouldcons