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1、附錄A外文翻譯—原文部分AluminumalloyprocessingAluminumalloymarketresearchThealuminumstrapisourcountrynationaleconomydevelopmentimportantbasismaterial,widelyappliesinprofessionsandsoonaviation,astronautics,building,printing,transportation,electron,chemicalindustry,food,medicine.Inrec
2、entyears,undertheeconomicalfastdevelopment'simpetus,ourcountryaluminumstrap'sinvestmentelevatedtemperatureunceasingly,thealuminumstrapconsumptionquantitycontinuedmaintainsthestablegrowth.Professionandsoonouterwallconstructionandinteriordecoration,aluminumfoilmanufacture,p
3、rinting,PSversion,manufacturingindustry,electricalappliances,foodpackingdemandsfurtherenhance,becometheprimemotorswhichthealuminumstrapconsumptionquantitygrows,simultaneously,thetransportationshippingindustryisbecomingthenewexpensepointofgrowth.Alongwiththeeconomicaldevel
4、opmentandconsumptionlevel'senhancement,thealuminumsheet,thebelt,thefoilconsumptionquantityassumesthetrendofescalation.Ourcountryaluminummaterialexpensepeakafter2005arrives,andachievesthepeakin2012,theyeardemandsurpasses10,000,000tons.Butthepresentourcountryaluminumsheetst
5、ripconsumptionquantity,averageperpersonexpendstheworldaveragelevel1/2,theboardstripexpenseisthedevelopedcountry1/10-1/34,highaccuracyaluminumsheetstripdependenceimportsolution.Moreovertheimportvolumelargescaleisgrowingeveryyear,expendsthegrowthmovementtobeobvious,therefor
6、ethemarketprospectfavors.TheeffectsofalloyingelementsThepropertiesandcharacteristicsofaluminum,suchasdensity,conductivity,corrosionresistance,finish,mechanicalproperties,andthermalexpansion,aremodifiedbytheadditionofalloyingelements.Theresultingeffectdependsupontheprincip
7、alalloyingelementsused,asdetailedinthetablebelow.WroughtAlloyDesignationMajorAlloyingElementsandTypicalAlloyCharacteristics1xxxSeriesMinimum99%aluminumHighcorrosionresistance.Excellentfinishability.Easilyjoinedbyallmethods.Lowstrength.Poormachinability.Excellentworkabilit
8、y.Highelectricalandthermalconductivity.2xxxSeriesCopperHighstrength.Relativelylowcorrosionresist
