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1、注塑成型机工作原理及操作(Operationprincipleandoperationofinjectionmoldingmachine)OperationprincipleandoperationofinjectionmoldingmachineHttp://china.toocle.comDecember200902,09:41ChinaHydraulicMachineryNetworkBusinessAssociation,December,02hearingInjectionfunctionofacomplexshape,sizeprecisi
2、onorwithplasticmetalinsertisdense,iswidelyusedinnationaldefense,electronics,automotive,transportation,buildingmaterials,packaging,agriculture,education,healthanddailylifeinvariousfields.Theinjectionmoldingprocesshasgoodadaptabilitytovariousplasticsprocessing,highproductioncapaci
3、ty,andeasytorealizeautomation.Today,withtherapiddevelopmentoftheplasticsindustry,injectionmoldingmachinesoccupyanimportantpositionbothinquantityandinvariety,thusbecomingoneofthefastestgrowingandmostproductivemachinesinthecurrentplasticsmachineryindustry.Plasticinjectionmoldingte
4、chnologyisdevelopedaccordingtodiecastingprinciplefromtheendofnineteenthCenturyandthebeginningoftwentiethCentury.Itisoneofthemostpopularmethodsinplasticprocessingatpresent.Themethodisapplicabletoallthermoplasticsandsomethermosettingplastics(approximately1/3oftotalplastics).1、thew
5、orkingprincipleofinjectionmoldingmachineTheworkingprincipleofinjectionmoldingmachineandinjectionsyringewithsimilar,itistheuseofscrew(orpiston)thrust,theplasticizinggoodmoltenstate(i.e.viscousflow)plasticinjectedintothemoldcavityclosedgoodaftercuringstereotypesmadetheprocessofthe
6、products.Injectionmoldingisacycleprocess,eachcyclemainlyincludes:quantitativefeeding-meltplasticization-pressureinjection-moldcooling-dieopeningpieces.Takeouttheplasticpartsandthenclosethedieforthenextcycle.2、thestructureofinjectionmoldingmachineInjectionmoldingmachinebasedonpla
7、sticizingisdividedintotheplungertypeinjectionmoldingmachineandscrewtypeinjectionmoldingmachine,pressmachineanddrivemodecanbedividedintohydraulic,mechanicalandhydraulic-mechanical(rod)type,accordingtotheoperationmodeisdividedintoautomatic,semi-automaticandmanualinjectionmoldingma
8、chine.(1)horizontalinjectionmoldingmachine:This