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1、.AnalysisandpreventionofinfluencingfactorsforheattreatmentqualityofdiepartsAbstract:inmachinerymanufacturing,dieduetopoorqualityofheattreatment,deformationdefectsandleadscrapcontrolmoldheattreatmentdeformationisakeyissueintheproduction.Conventionalheattreatmentofthemold,themoldsurfacetreatme
2、nttechnologyandmoldheattreatment,hardnesstestingmethodtoanalyzethemoldheattreatmentdefects,explorethethedeformationdefectsfactorsmoldheattreatment,atthesametime,itispointedoutthatthepreventionmeasurestoimprovemoldqualityandservicelife.Keywords:moldheattreatment;quality;factors;analysis0Intro
3、ductionCommonmoldintheheattreatment,particularlyinthemoldinthequenchingprocess,thetemperaturedifferencecausedduetotheinconsistenciesintheheatingandcoolingrateofthevariouspartsofthemoldsectional,sothatthemoldcross-sectionalvolumeofthevariouspartsofswellingandshrinkageunevenness,organizationtr
4、ansitionunevenness,therebycausing"organizationalstress.Wheninnerstressexceedstheyieldlimitofthemold,willcausedeformationofthemold.Therefore,thereductionandcontrolofsophisticatedmolddeformationisakeyissueintheproduction.1AconventionalheattreatmentmethodofamoldAnnealingisaheattreatmentprocessa
5、fterthesteelisheatedtoacertaintemperature,andincubatedforaperiodoftime,withthefurnacecooledslowly(orburiedinthefollowingthecoolingsandorlime)to500°C,coolinginair.Thefullyannealedalsoknownasrecrystallizationannealing,generallyreferredtoasannealing,thisannealingismainlyusedforavarietyofcarbona
6、ndalloysteelforgingsandhot-rolledprofiles,thehypoeutectoidingredientssometimesusedforweldingstructure.CommonlyasthefinalheatofthelightqualityoftheworkpieceatProcessing,orasapre-heattreatmentofcertainworkpieces.BallannealingmainlyusedeutectoidcarbonsteelandalloyworkersWithsteel(suchas:manufac
7、tureofcuttingtools,measuringtools,moldsteels).Itsmainpurposeistoreducethehardness,toimprovethemachinability,andtoprepareforthesubsequentquenching.Stressreliefannealing,alsoknownaslow-temperatureannealing(annealingortemperingthisismainlyusedtoelimin
