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1、AnalysisandpreventionofinfluencingfactorsforheattreatmentqualityofdiepartsAbstract:inmachinerymanufacturing,dieduetopoorqualityofheattreatment,deformationdefectsandleadscrapcontrolmoldheattreatmentdeformationisakeyissueintheproduction.Conventionalheattreatme
2、ntofthemold,themoldsurfacetreatmenttechnologyandmoldheattreatment,hardnesstestingmethodtoanalyzethemoldheattreatmentdefects,explorethethedeformationdefectsfactorsmoldheattreatment,atthesametime,itispointedoutthatthepreventionmeasurestoimprovemoldqualityandse
3、rvicelife.Keywords:moldheattreatment;quality;factors;analysis0IntroductionCommonmoldintheheattreatment,particularlyinthemoldinthequenchingprocess,thetemperaturedifferencecausedduetotheinconsistenciesintheheatingandcoolingrateofthevariouspartsofthemoldsection
4、al,sothatthemoldcross-sectionalvolumeofthevariouspartsofswellingandshrinkageunevenness,organizationtransitionunevenness,therebycausing"organizationalstress.Wheninnerstressexceedstheyieldlimitofthemold,willcausedeformationofthemold.Therefore,thereductionandco
5、ntrolofsophisticatedmolddeformationisakeyissueintheproduction.1AconventionalheattreatmentmethodofamoldAnnealingisaheattreatmentprocessafterthesteelisheatedtoacertaintemperature,andincubatedforaperiodoftime,withthefurnacecooledslowly(orburiedinthefollowingthe
6、coolingsandorlime)to500°C,coolinginair.Thefullyannealedalsoknownasrecrystallizationannealing,generallyreferredtoasannealing,thisannealingismainlyusedforavarietyofcarbonandalloysteelforgingsandhot-rolledprofiles,thehypoeutectoidingredientssometimesusedforweld
7、ingstructure.CommonlyasthefinalheatofthelightqualityoftheworkpieceatProcessing,orasapre-heattreatmentofcertainworkpieces.BallannealingmainlyusedeutectoidcarbonsteelandalloyworkersWithsteel(suchas:manufactureofcuttingtools,measuringtools,moldsteels).Itsmainpu
8、rposeistoreducethehardness,toimprovethemachinability,andtoprepareforthesubsequentquenching.Stressreliefannealing,alsoknownaslow-temperatureannealing(annealingortemperingthisismainlyusedtoelimina
