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ID:32923818
大小:223.74 KB
页数:15页
时间:2019-02-17
《VI-Casting Definitions and Terminology》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、CastingDefinitionsandTerminologyManufacturingMenu
2、CastingManufacturingServiceshttp://www.engineersedge.com/casting_definition.htmMyASNTLevelIIIVISelfStudyNotesCharlieChong/FionZhangAAs-CastCondition:Castingwithoutsubsequentheattreatment.CharlieChong/FionZhangBBackDraft:Reversetaperwhichwouldpr
3、eventremovalofapatternfromamoldoracorefromacoreboxBar,Flask:Aribinthecopeofatightflasktohelpsupportthesand.BackingSand:Thebulkofthesandintheflask.Thesandcompactedontopofthefacingsandthatcoversthepattern.Binder:Thebondingagentusedasanadditivetomoldorcoresandtoimpartstrengthofplasticityinadrysta
4、te.BlastingorBlastCleaning:Aprocessforcleaningorfinishingmetalobjectsbyuseofanairblastorcentrifugalwheelthatthrowsabrasiveparticlesagainstthesurfacesoftheworkpieces.Smallirregularparticlesofmetalareusedastheabrasiveingritblasting;sandinsandblasting;andsteelballsinshotblasting.Bleeder:Adefectwh
5、ereinacastinglackscompletenessduetomoltenmetaldrainingorleakingoutofsomepartofthemoldcavityafterpouringhasstopped.Burn-OnSand:Sandadheringtothesurfaceofthecastingthatisextremelydifficulttoremove.Burn-Out:Firingamoldatahightemperaturetoremovepatternmaterialresidue.CharlieChong/FionZhangCCasting
6、Yield:Theweightofcastingorcastingsdividedbythetotalweightofmetalpouredintothemold,expressedasapercent.CentrifugalCasting:Aprocessoffillingmoldsby1)pouringmetalintoasandorpermanentmoldthatisrevolvingabouteitheritshorizontaloritsverticalaxis;or2)pouringmetalintoamoldthatissubsequentlyrevolvedbef
7、oresolidificationofthemetaliscomplete.SeealsoCentrifugeCasting.CentrifugeCasting-Acastingtechnique.Cavity:TheportionofacastwhichformstheexternalshapeChaplet:Asmallmetalinsertorspacerusedinmoldstoprovidecoresupportduringthecastingprocess.Charge:Agivenweightofmetalintroducedintothecastingfurnace
8、.Chill:Ametalinsertinthesandmoldusedtoproducelocalchillingandequalizerateofsolidificationthroughoutthecasting.Cleaning:Removalofrunners,risers,flash,surplusmetalandsandfromacasting.CO2Process:Moldsandcoresmadewithsandcontainingsodiumsil
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