文档介绍：echnologyknowledge(feelgoodontop)(2011-5-822:51:00)shellmaterialPCPolycarbonate(Polycarbonate)cannotbeplatedPolycarbonateisathermoplasticengineeringplastic,polycarbonatehasexcellentelectricalinsulationpropertiesandmechanicalproperties,especiallytheimpactperformanceofthemostprominent,hightoughness,hightranspsrency(knownas"transparentmetal"),non-toxic,easymolding・Itcannotonlyreplacesomemetals,butalsoreplaceglass,mondailyapplicationsarediscs,eyelenses,waterbottles,bulletproofglass,goggles,bankbullets,glass,headlights,andsoonPChassuperiorperformanee,butitshighprice・Themobilephoneismostlyusedforshell,plasticmaterialandkeyboardABSengineeringplasticsSuitableforelectroplatingHeatresistanee/impactresistance(transparentABSopacityisnothigh)MobilephonesaremostlyusedforelectroplatedpartsPC+ABSPCandABSblendscanbegoodpropertiesofPCandABS,ontheonehandcanimprovetheheatresistance,impactresistanceandtensilestrengthofABS,ontheotherhandcanreducethecostofPCandmeltviscosity,improveprocessingperformance,reducethesensitivityofstressandimpactstrengthofproductsontheproductthickness・monlyknownasplexiglass,alsoknownasacrylicoracrylic・parablehighbrightness,toughness,noteasilydamaged;brightcolors,canmeetthedifferenttastesofpersonalitypursuit・Butitssolventresistanceispooranditisnotshockresistant(YiSui)China,sPMMAmainconsumerareasareadvertisinglightboxes,signs,lamps,bathtubs,meters,dailynecessities,furnitureandotherlow~endmarketsMobilephonesaremostlyusedforscreenlensandcameralensRubberRubber,softtexture,strongplasticityMobilephonesaremostlyusedforplugsandkeyboardsMetalTherearealsofewmodelsofmetalhousing,brushedaluminiumalloyhousing,stainlesssteelbatterycover,etc・ThecoloraluminumalloyistheresultofsurfaceoxidationTwo:MobileappearanceeffectinjectioncolorCostsavingpaintfreeparts,monblackandwhite,mostlyusedinlow-endmachinesTheappearanceofroughandsmoothtextureThesurfaceofthemoldpits,firepatterns,mattetexture・Thesparklinecancontrolthethickness,,thatis,inside