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1、表面覆层技术在模具制造中的应用ApplicationofsurfacecoatingtechnologyindiemanufacturingJianPingCui[Abstract]claddingtechnologyasawaytoimprovethesurfacequalityofmold,greatlyimprovedtheservicelifeofthemold.Themainprincipleistheuseofphysicalvapordeposition(PVD),plasmacoatingtechnology,multiplelayerco
2、mpositetechnology,formingareinforcinglayeronthesurfaceofthemould,metalceramicfilm,thisfilmhasthefunctionofabrasionresistance,corrosionresistance,becausethismembraneusedmaterialsandaluminum,zincandothermetalaffinityorreactionsolution,soitcangreatlyimprovetheperformanceofdiecastingd
3、ieanddiebondingphenomenondoesnotoccur.Coatingtechnology,physicalvapordeposition(PVDTechnology)1IntroductionDomesticmoldindustryhasdevelopedrapidly,theoutputvaluehasreachedabout50000000000yuan,theservicelifeofthedieisrelativelylow,onlytheequivalentofforeign1/3-1/5,duetothequalityof
4、themoldsurfacecausedbythelossofoverabillionyuanayear.Thesurfacequalityofthemoldhasagreatinfluenceontheservicelifeofthedie.Threereasonsforthedamageofdiesandthelimitationofdielifeareasfollows:1)theviscosity(soldering)andchemicalerosiondamageofliquidmetalaluminum.2)wearandcorrosion.3
5、)thermalfatiguecracking.Pointedoutthattherelevantdomesticaluminummeltinglosstest,whenthemoldmaterialhardnessis45HRC,aluminummeltinglosswithoutsurfacetreatmentrateashighas54.90%,whenusingsaltbathSulphonitrocarburizingplusPVDtreatment,meltingratedecreasedto0.10%.Itcanbeseenthattheef
6、fectofsurfacetreatmentisobviousAluminumAlloyworkpiececastingdieHEFgroupsteeringoperatingsystemforcarsinthetappet(38CDV5,equivalenttoH13steel)isdepositedonthesurfaceofCERTESSSD3mthickcoating,thehardnesscanreach4000~4500HV,usingtemperaturecanreach800DEGC,butalsoantiAluminumAlloybond
7、,servicelifeincreasedto100thousandtimes.Isnot6~7timesofdepositionprocesstappet.Thesurfacecoatingtechnologyasamethodtoimprovethesurfacequalityofthemold,theresearchhasbeencarriedoutintheworldfamousresearchinstitutionsanduniversities,technologyisrelativelymature,hasbeenused,hasachiev
8、edverygoodbenefits.Ourresearchint
