材料成型及控制工程专业英语配套教学课件刘瑛电子课件 Unit 15.ppt

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1、Unit15PlasticInjectionMolding注塑成型Objective3.2.4.1.Befamiliarwiththecomponentsofaplasticinjectionmachine;Mastertheverbsusedintheinjectionprocessdescribing;Showthecorrectorderoftheinjectionprocessusingsequencewords.Describetherelativepositionofthecomponents;WarmingupHousing/

2、Shell/casingofComputer,Printer,Telephone,Airconditionerandotherhouseholdappliance,Medicineboxesorbottles,Pens,Deskorganizer,stapler……AnswerManyitemsfoundinthehomearemadebythemeansofinjectionmolding.Workingroupsandlistasmanyitemsasyoucan.Task1TermStudyNowwatchVideo15-1andtr

3、ytolabelthepartswithnumbersinFig.15-1.Task2Fig.15-1PlasticInjectionmachinecomponents(1)MovingplatenorMoveableplaten(2)Moldormoldtool(3)FixedplatenorStationaryplaten(4)Barrel(5)Screw(6)Hopper(7)Heaterbands(8)BaseAnswerTermStudyAnswerKnowinghowtodescribetherelativepositionof

4、thecomponentsareveryimportantinEngineering.WhatVerbsdoyouusetoshowtherelativepositionofthefollowingpairs?Andthenwriteasentencetodescribeit.WatchVideo15-1againtohelpyoufindtheanswersifnecessary.(1)Base&alltheothercomponents:(2)Barrel&screw:(3)Barrel&heaterbands:(4)Mold&plat

5、ens:Task3TermStudy(1)Thebasesupportsthemoldingmachineandhousesmanyofthemachinecomponents.(2)Thebarrelhousesthescrew.(3)Thebarrelissurroundedbyheaterbands.(4)Thetwohalvesofmoldaremountedonthetwoplatens.AnswerTermStudyAnswerNowreadthetextandcompletethetable.Whichparagraphmen

6、tionsfollowinginformation?Thefirstonehasbeendoneforyou.Task4InformationParagraphNumberSizesofinjectionmachines2ThefunctionandmechanismsofInjectionsystemTheprocessofinjectionGeneralintroductionofinjectionmoldingTheelementsofthescrewTermStudyAnswerInformationParagraphNumberS

7、izesofinjectionmachines2ThefunctionandmechanismsofInjectionsystem3Theprocessofinjection4,6,7Generalintroductionofinjectionmolding1Theelementsofthescrew5TermStudyTextReadparagraph4,6,7againandlisttheverbsusedtodescribetheinjectionmoldingprocessinthetext.(1)feed(2)(3)(4)(5)(

8、6)(7)(8)(9)(10)(11)(12)Task5(1)feed(2)fill(3)enter(4)drive(5)power(6)drag(7)slide(8)push(