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1、6063铝合金常见缺陷简析（Briefanalysisofcommondefectsin6063AluminiumAlloy）1strokes,scratches,bruisesAscratch,bruise,orbruiseisasurfacedamagethatoccurswhentheprofileflowsoutofthedieholeandincontactwiththetools,equipment,etc.insubsequentoperations.1.1mainreasonsSegregationofdebrisoringotsegregationonthesurfa
2、ceofingot.Therearealotofthingsoutoftheingotsurfacesegregationandingotwithouthomogenizationtreatmentorhomogenizationtreatmenteffectisnotgood,hardmetalparticlesiningotmemoryofacertainamount,intheextrusionprocessofmetalflowingthroughtheworkzone,thesemetalparticlessegregationorhardtodamageintheattac
3、hmentoftheworkorworksurfacewiththefinaltoscratchthesurfaceofprofile;Themoldcavityorworkbelthassundry,themoldworkbelthardnessislow,causestheworkbeltsurfacetobeinjuredwhenextruding,andscratchesthesectionbar;Theexposedtrackorpendulumbedhasexposedmetalorgraphite,andthereisahardinclusioninit.Whenitco
4、ntactswiththeprofile,itcausesthesurfaceoftheprofiletobescratched;Whenthesectionbarmovestheprofilefromthedischargetracktothependulumbed,theprofileisdamagedbecauseofthetoohighspeed;Ontherockingbed,peopledragtheprofiletomakeabrade;Betweenthesectionsinthetransportprocessofmutualfrictionorextrusionda
5、mage.1.2solutionsStrengthenthecontrolofingotquality;Toimprovethequalityofmouldrepair,regularnitridingofmoldandstrictimplementationofnitridingprocess;ThesoftfeltwillprofileandAIDSisolation,minimizethedamageprofileandauxiliarycontact;Fourth,theproductionshouldbehandledwithcare,asfaraspossibletoavo
6、idarbitrarydragorturnprofiles;Puttheprofilesinthematerialframeandtrytoavoidfriction.2mechanicalperformanceisnotqualified2.1mainreasonsWhentheextrusiontemperatureistoolow,theextrusionspeedistooslow,theoutlettemperatureoftheprofileintheextrudercannotreachthesolidsolutiontemperature,andcannotplayth
7、eroleofsolidsolutionstrengthening;Theprofileattheoutletofthefan,airisnotenough,resultinginslowcoolingrate,cannotmaketheprofileintheshortesttimeisreducedto200DEGC,thecoarseMg2Siearlyprecipitation,sothatthesolidsolutionphasere
