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外文资料翻译系别.专业.班级.姓名.学号.指导教师.2011年4月一、China’smoldindustryDuetohistoricalreasonsfortheformationofclosed,bigandcompleteenterprisefeatures,mostenterprisesinChinaareequippedwithmoldworkshop,infactorymatchingstatussincethelate70shaveamoldtheconceptofindustrializationandspecializationofproduction.Productionefficiencyisnothigh,pooreconomicreturns.Moldproductionindustryissmallandscattered,cross-industry,capital-intensive,professional,commercialandtechnicalmanagementlevelarerelativelylow.Accordingtoincompletestatistics,therearenowspecializedinmanufacturingmold,theproductsupportingmoldfactoryworkshop(factory)near17000,about600000employees,annualoutputvaluereached20billionyuanmold.However,theexistingcapacityofthemoldanddieindustrycanonlymeetthedemandof60%,stillcannotmeettheneedsofnationaleconomicdevelopment.Atpresent,thedomesticneedsoflarge,sophisticated,complexandlonglifeofthemoldalsorelymainlyonimports.Accordingtocustomsstatistics,in1997630millionU.S.dollarsworthofimportsmold,notincludingtheimportofmoldtogetherwiththeequipment;in1997only78millionU.S.dollarsexportmold.AtpresentthetechnologicallevelofChinaDie&MouldIndustryandmanufacturingcapacity,China'snationaleconomyintheweaklinksandbottlenecksconstrainingsustainableeconomicdevelopment.1、ResearchontheStructureofindustrialproductsmoldInaccordancewiththedivisionofChinaMouldIndustryAssociation,Chinamoldisdividedinto10basiccategories,which,stampingdieandplasticmoldingtwocategoriesaccountedforthemainpart.Calculatedbyoutput,present,Chinaaccountsforabout50%diestamping,plasticmoldingdieabout20%,WireDrawingDie(Tool)about10%oftheworld'sadvancedindustrialcountriesandregions,theproportionofplasticformingdiediegeneralofthetotaloutputvalue40%.Mostofourstampingdiemoldforthesimple,single-processmodeandmeetthemolds,precisiondie,precisionmulti-positionprogressivedieisalsooneofthefew,dielessthan100milliontimestheaveragelifeofthemoldreached100milliontimesthemaximumlifeofmorethanaccuracy3~5um,morethan50progressivestation,andtheinternationallifeofthedie600milliontimesthehighestaveragelifeofthedie50milliontimescomparedtothemid80sattheinternationaladvancedlevel.China'splasticmoldingmolddesign,productiontechnologystartedrelativelylate,theoverallleveloflow.Currentlyasinglecavity,asimplemoldcavity70%,andstilldominant.Asophisticatedmulti-cavitymoldplasticinjectionmold,plasticinjectionmoldhasbeenabletomulti-colorpreliminarydesignandmanufacturing.Mouldisabout80milliontimestheaveragelifespanisabout,themaindifferenceisthelargedeformationofmoldcomponents,excessburrsideofalarge,poorsurfacequality,erosionandcorrosionseriousmoldcavity,themoldcavityexhaustpoorandvulnerablesuchas,injectionmold5umaccuracyhasreachedbelowthehighestlifeexpectancyhasexceeded20milliontimes,thenumberhasmorethan100chambercavity,reachingthemid80stoearly90stheinternationaladvancedlevel.2、moldPresentStatusofTechnologyTechnicallevelofChina'smoldindustrycurrentlyuneven,withwidedisparities.Generallyspeaking,withthedevelopedindustrialcountries,HongKongandTaiwanadvancedlevel,thereisalargegap.TheuseofCAD/CAM/CAE/CAPPandothertechnicaldesignandmanufacturemolds,bothwideapplication,ortechnicallevel,thereisabiggapbetweenboth.IntheapplicationofCADtechnologydesignmolds,onlyabout10%ofthemoldusedinthedesignofCAD,asidefromdrawingboardstillhasalongwaytogo;intheapplicationofCAEdesignandanalysisofmoldcalculation,itwasjuststarted,mostofthegameisstillintrialstagesandanimation;intheapplicationofCAMtechnologymanufacturingmolds,first,thelackofadvancedmanufacturingequipment,andsecond,theexistingprocessequipment(includingthelast10yearstheintroductionofadvancedequipment)orcomputerstandard(IBMPCandcompatibles,HPworkstations,etc.)different,orbecauseofdifferencesinbytes,processingspeeddifferences,differencesinresistancetoelectromagneticinterference,networkingislow,onlyabout5%ofthemoldmanufacturingequipmentofrecentworkinthistask;intheapplicationprocessplanningCAPPtechnology,basicallyablankstate,basedontheneedforalotofstandardizationwork;inthemoldcommontechnology,suchasmoldrapidprototypingtechnology,polishing,electroformingtechnologies,surfacetreatmenttechnologyaspectsofCAD/CAMtechnologyinChinahasjuststarted.Computer-aidedtechnology,softwaredevelopment,isstillatlowlevel,theaccumulationofknowledgeandexperiencerequired.Mostofourmoldfactory,moldprocessingequipmentshopold,longinthelengthofcivilianservice,accuracy,lowefficiency,stillusetheordinaryforging,turning,milling,planing,drilling,grindingandprocessingequipment,mold,heattreatmentisstillinusesaltbath,box-typefurnace,operatingwiththeexperienceofworkers,poorlyequipped,highenergyconsumption.Renewalofequipmentisslow,technologicalinnovation,technologicalprogressisnotmuchintensity.Althoughinrecentyearsintroducedmanyadvancedmoldprocessingequipment,butaretooscattered,ornotcomplete,onlyabout25%utilization,equipment,someoftheadvancedfunctionsarenotgivenfullplay.Lackoftechnologyofhigh-qualitymolddesign,manufacturingtechnologyandskilledworkers,especiallythelackofknowledgeandbreadth,knowledgestructure,highlevelsofcompoundtalent
本文标题:箱体外文翻译-方案二
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