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1、6063铝合金常见缺陷简析（Analysisofcommondefectsof6063aluminumalloy）1strokes,scratches,bruisesScratches,scratches,bumpsaresurfacedamagethatoccurswhentheprofileflowsoutofthedieholeandcontactswithtoolsandequipmentinsubsequentprocesses.1.1mainreasonsSegregationofimpuritiesoringotcompositiononthe
2、surfaceofingot.Therearealotofthingsoutoftheingotsurfacesegregationandingotwithouthomogenizationtreatmentorhomogenizationtreatmenteffectisnotgood,hardmetalparticlesiningotmemoryofacertainamount,intheextrusionprocessofmetalflowingthroughtheworkzone,thesemetalparticlessegregationorhar
3、dtodamageintheattachmentoftheworkorworksurfacewiththefinaltoscratchthesurfaceofprofile;Therearesundriesinthemoldcavityorworkbelt,andthehardnessoftheworkingbandofthedieislow,sothattheworkingsurfaceoftheworkingbeltisinjuredwhileextruding,andtheprofileisscratched;Theexposedmetalorgrap
4、hitestriphasahardinclusiononthetrackorpendulumbed,whichscratchesthesurfaceoftheprofilewhenitcontactswiththeprofile;(4)whenthecrossbarmovestheprofilefromthedischargingtracktothependulumbed,theprofileisdamagedduetotoofastspeed;(5)abrasioncausedbyartificiallydraggingprofilesonthependu
5、lumbed;Betweenthesectionsinthetransportprocessofmutualfrictionorextrusiondamage.1.2solutionsStrengthenthecontrolofingotquality;Toimprovethequalityofdierepair,regularnitridingofmouldandstrictimplementationofnitridingprocess;ThesoftfeltwillprofileandAIDSisolation,minimizethedamagepro
6、fileandauxiliarycontact;Fourth,theproductionshouldbehandledgently,asfaraspossibletoavoidarbitrarydragorflipprofiles;Inthematerialframereasonableplacementofprofiles,asfaraspossibletoavoidmutualfriction.2unqualifiedmechanicalproperties2.1mainreasonsWhentheextrusiontemperatureistoolow
7、andtheextrusionspeedistooslow,theoutlettemperatureoftheprofilecannotreachthesolidsolutiontemperatureattheextrusionmachine,anditcannotplaytheroleofsolidsolutionstrengthening;Theprofileattheoutletofthefan,airisnotenough,resultinginslowcoolingrate,cannotmaketheprofileintheshortesttime
8、isreducedto200DEGC,thecoar
