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英文原文1DiepositioninindustrialproductionMoldisahighvolumeproductswiththeshapetool,isthemainprocessofindustrialproductionequipment.Withmoldcomponents,withhighefficiency,goodquality,lowcost,savingenergyandrawmaterialsandaseriesofadvantages,withthemoldworkpiecespossesshighaccuracy,highcomplexity,highconsistency,highproductivityandlowconsumption,othermanufacturingmethodscannotmatch.Havealreadybecomeanimportantmeansofindustrialproductionandtechnologicaldevelopment.Thebasisofthemodernindustrialeconomy.Thedevelopmentofmodernindustrialandtechnologicalleveldependslargelyonthelevelofindustrialdevelopmentdie,sodieindustrytonationaleconomicandsocialdevelopmentwillplayanincreasingrole.March1989theStateCouncilpromulgatedonthecurrentindustrialpolicydecisionpointsinthemoldasthemachineryindustrytransformationsequenceofthefirst,productionandcapitalconstructionofthesecondsequenceafterthelargescalepowergenerationequipmentandthecorrespondingpowertransmissionequipment,establishtoolingindustryinanimportantpositioninthenationaleconomy.Since1997,theyhavetomoldanditsprocessingtechnologyandequipmentincludedinthecurrentnationalfocusonencouragingthedevelopmentofindustries,productsandtechnologiescatalogandtoencourageforeigninvestmentindustrydirectory.ApprovedbytheStateCouncil,from1997to2000,morethan80professionalmoldfactoryowned70VATrefundofpreferentialpoliciestosupportmoldindustry.AllthesehavefullydemonstratedthedevelopmentoftheStateCouncilandstatedepartmentstoolingindustryattentionandsupport.Moldaroundtheworldaboutthecurrentannualoutputof60billionU.S.dollars,Japan,theUnitedStatesandotherindustrializedcountriesdieofindustrialoutputvalueofmorethanmachinetoolindustry,beginningin1997,Chinasindustrialoutputvaluehasexceededthemoldmachinetoolindustryoutput.Accordingtostatistics,homeappliances,toysandotherlightindustries,nearly90ofthepartsareintegratedwithproductionofchopsticksinaircraft,automobiles,agriculturalmachineryandradioindustries,theproportionexceeded60.Suchasaircraftmanufacturing,theuseofacertaintypeoffighterdiesmorethan30,000units,ofwhichthehost8000sets,2000setsofengines,auxiliary20000sets.Fromtheoutputofview,sincethe80s,theUnitedStates,Japanandotherindustrializedcountriesdieindustryoutputvaluehasexceededthemachinetoolindustry,andtherearestillrising.Productiontechnology,accordingtotheInternationalAssociationpredictsthatin2000,theproductbestpiecesofrough75,50willbefinishedmoldcompletedmetals,plastics,ceramics,rubber,buildingmaterialsandotherindustrialproducts,mostofthemoldwillbecompletedinmorethan50metalplates,morethan80ofallplasticproducts,especiallythroughthemoldinto.2ThehistoricaldevelopmentofmoldTheemergenceofmoldcanbetracedbackthousandsofyearsago,potteryandbronzefoundry,butthelargescaleuseiswiththeriseofmodernindustryanddeveloped.The19thcentury,withthearmsindustrygunsshell,watchindustry,radioindustry,diesarewidelyused.AfterWorldWarII,withtherapiddevelopmentofworldeconomy,itbecameamassproductionofhouseholdappliances,automobiles,electronicequipment,cameras,watchesandotherpartsthebestway.Fromaglobalperspective,whentheUnitedStatesintheforefrontofstampingtechnologymanydieofadvancedtechnologies,suchassimplemold,highefficiency,mold,dieandstampingthehighlifeautomation,mostlyoriginatedintheUnitedStatesandSwitzerland,fineblanking,coldinGermanyextrusiontechnology,plasticprocessingoftheSovietUnionareattheworldadvanced.50s,moldindustryfocusisbasedonsubscriberdemand,productioncanmeettheproductrequirementsofthemold.Multidiedesignruleofthumb,referencehasbeendrawingandperceptualknowledge,onthedesignofmoldpartsofalackofrealunderstandingoffunction.From1955to1965,isthepressureprocessingofexplorationanddevelopmentofthetimesthemaincomponentsofthemoldandthestressstateofthefunctionofamathematicalsubbridge,andtocontinuetoapplytoonsitepracticalknowledgetomakestampingtechnologyinallaspectsofaleapindevelopment.Theresultissummarizedmolddesignprinciples,andmakesthepressuremachine,stampingmaterials,processingmethods,plumwithastructure,moldmaterials,moldmanufacturingmethod,thefieldofautomationdevices,anewlooktothepracticaldirectionofadvance,sothatpressingprocessingapparatuscapableofproducingqualityproductsfromthefirststage.Intothe70stohighspeed,launchtechnology,precision,security,developmentofthesecondstage.Continuetoemergeinthisprocessavarietyofhighefficiency,businesslife,highprecisionmultifunctionalautomaticschooltohelpwith.Representedbythenumberofworkingplacesasmuchasotherprogressivedieanddozensofmultistationtransferstationmodule.Onthisbasis,hasdevelopedbothacontinuouspressingstationtherearemoreslideformingstationofthepressbendingmachine.Inthemeantime,theJapanesestandtotheworldslargestthemoldintothemicronlevelprecision,dielife,alloytoolsteelmoldhasreachedtensofmillionsoftimes,carbidesteelmoldtoeachofhundredsofmillionsoftimespminutesforstampingthenumberofsmallpressesusually200to300,upto1200timesto1500times.Inthemeantime,inordertomeetproductupdatesquickly,withtheshortdurationsuchascarsmodified,refurbishedtoys,etc.needavarietyofeconomictypemold,suchaszincalloydiedown,polyurethanerubbermold,diesteelskin,alsohasbeenverygreatdevelopment.Fromthemid70ssofarcanbesaidthatcomputeraideddesign,supportingthecontinuousdevelopmentofmanufacturingtechnologyofthetimes.Withtheprecisionandcomplexityofmoldrising,acceleratingtheproductioncycle,themoldindustry,thequalityofequipmentandpersonnelarerequiredtoimprove.Relyoncommonprocessingequipment,theirexperienceandskillscannotmeettheneedsofmold.Sincethe90s,mechanicalandelectronictechnologiesincloseconnectionwiththedevelopmentofNCmachinetools,suchasCNCwirecuttingmachine,CNCEDM,CNCmilling,CNCcoordinategrindingmachineandsoon.Theuseofcomputerautomaticprogramming,controlCNCmachinetoolstoimprovetheefficiencyintheuseandscope.Inrecentyears,hasdevelopedacomputertotimesharingbythewayagroupofdirectmanagementandcontrolofCNCmachinetoolsNNCsystem.Withthedevelopmentofcomputertechnology,computershavegraduallyintothemoldinallareas,includingdesign,manufacturingandmanagement.InternationalAssociationfortheStudyofproductionforecaststo2000,asameansoflinksbetweendesignandmanufacturingdrawingswillloseitsprimaryrole.AutomaticDesignofdiemostfundamentalpointistoestablishthemoldstandardanddesignstandards.Togetridofthepeopleofthepast,andpracticalexperiencetojudgethecompositionofthedesigncenter,wemusttakepastexperiencesandwaysofthinking,forseries,numericalvalue,thenumberoftypebased,asthedesigncriteriatothecomputerstore.Componentsaredrybecauseofmoldconstitutesamillionotherdifferences,tocomeupwithacanadapttovariouspartsofthedesignsoftwarealmostimpossible.Butsomeproductsdonotchangetheshapeofparts,moldstructurehascertainrules,canbesummedupfortheautomaticdesignofsoftware.IfaJapanesecompanysCDMsystemforprogressivediedesignandmanufacturing,includingtheimportationofpartsofthefigure,roughstart,striplayout,determinethesizeandstandardtemplates,assemblydrawingandparts,theoutputNCprogramforCNCmachiningCenterandlinecuttingprogram,etc.,usedin20ofthetimebyhand,reducetheirworkinghoursto35hoursfromJapanintheearly80swillbethreedimensionalcad/camsystemforautomotivepaneldie.Currently,thephysicalpartsscanninginput,maplinesanddatainput,geometricform,display,graphics,annotationsandthedataisautomaticallyprogrammed,resultingineffectivecontrolmachinetoolcontrolsystemofpostprocessingdocumentshavereachedahighlevelcomputerSimulationCAEtechnologyhasmadesomeachievements.Athighlevels,CAD/CAM/CAEintegration,thatdataisintegrated,cantransmitinformationdirectlywitheachother.Achievenetwork.Present.Onlyafewforeignmanufacturerscandoit.3ChinasmoldindustryanditsdevelopmenttrendDieMouldIndustryStatusDuetohistoricalreasonsfortheformationofclosed,bigandcompleteenterprisefeatures,mostenterprisesinChinaareequippedwithmoldworkshop,infactorymatchingstatussincethelate70shaveamoldtheconceptofindustrializationandspecializationofproduction.Productionefficiencyisnothigh,pooreconomicreturns.Moldproductionindustryissmallandscattered,crossindustry,capitalintensive,professional,commercialandtechnicalmanagementlevelarerelativelylow.Accordingtoincompletestatistics,therearenowspecializedinmanufacturingmold,theproductsupportingmoldfactoryworkshopfactorynear17000,about600000employees,annualoutputvaluereached20billionyuanmold.However,theexistingcapacityofthemoldanddieindustrycanonlymeetthedemandof60,stillcannotmeettheneedsofnationaleconomicdevelopment.Atpresent,thedomesticneedsoflarge,sophisticated,complexandlonglifeofthemoldalsorelymainlyonimports.Accordingtocustomsstatistics,in1997630millionU.S.dollarsworthofimportsmold,notincludingtheimportofmoldtogetherwiththeequipmentin1997only78millionU.S.dollarsexportmold.AtpresentthetechnologicallevelofChinaDieMouldIndustryandmanufacturingcapacity,Chinasnationaleconomyintheweaklinksandbottlenecksconstrainingsustainableeconomicdevelopment.3.1ResearchontheStructureofindustrialproductsmoldInaccordancewiththedivisionofChinaMouldIndustryAssociation,Chinamoldisdividedinto10basiccategories,which,stampingdieandplasticmoldingtwocategoriesaccountedforthemainpart.Calculatedbyoutput,present,Chinaaccountsforabout50diestamping,plasticmoldingdieabout20,WireDrawingDieToolabout10oftheworldsadvancedindustrialcountriesandregions,theproportionofplasticformingdiediegeneralofthetotaloutputvalue40.Mostofourstampingdiemoldforthesimple,singleprocessmodeandmeetthemolds,precisiondie,precisionmultipositionprogressivedieisalsooneofthefew,dielessthan100milliontimestheaveragelifeofthemoldreached100milliontimesthemaximumlifeofmorethanaccuracy35um,morethan50progressivestation,andtheinternationallifeofthedie600milliontimesthehighestaveragelifeofthedie50milliontimescomparedtothemid80sattheinternationaladvancedlevel.Chinasplasticmoldingmolddesign,productiontechnologystartedrelativelylate,theoverallleveloflow.Currentlyasinglecavity,asimplemoldcavity70,andstilldominant.Asophisticatedmulticavitymoldplasticinjectionmold,plasticinjectionmoldhasbeenabletomulticolorpreliminarydesignandmanufacturing.Mouldisabout80milliontimestheaveragelifespanisabout,themaindifferenceisthelargedeformationofmoldcomponents,excessburrsideofalarge,poorsurfacequality,erosionandcorrosionseriousmoldcavity,themoldcavityexhaustpoorandvulnerablesuchas,injectionmold5umaccuracyhasreachedbelowthehighestlifeexpectancyhasexceeded20milliontimes,thenumberhasmorethan100chambercavity,reachingthemid80stoearly90stheinternationaladvancedlevel.3.2moldPresentStatusofTechnologyTechnicallevelofChinasmoldindustrycurrentlyuneven,withwidedisparities.Generallyspeaking,withthedevelopedindustrialcountries,HongKongandTaiwanadvancedlevel,thereisalargegap.TheuseofCAD/CAM/CAE/CAPPandothertechnicaldesignandmanufacturemolds,bothwideapplication,ortechnicallevel,thereisabiggapbetweenboth.IntheapplicationofCADtechnologydesignmolds,onlyabout10ofthemoldusedinthedesignofCAD,asidefromdrawingboardstillhasalongwaytogointheapplicationofCAEdesignandanalysisofmoldcalculation,itwasjuststarted,mostofthegameisstillintrialstagesandanimationintheapplicationofCAMtechnologymanufacturingmolds,first,thelackofadvancedmanufacturingequipment,andsecond,theexistingprocessequipmentincludingthelast10yearstheintroductionofadvancedequipmentorcomputerstandardIBMPCandcompatibles,HPworkstations,etc.different,orbecauseofdifferencesinbytes,processingspeeddifferences,differencesinresistancetoelectromagneticinterference,networkingislow,onlyabout5ofthemoldmanufacturingequipmentofrecentworkinthistaskintheapplicationprocessplanningCAPPtechnology,basicallyablankstate,basedontheneedforalotofstandardizationworkinthemoldcommontechnology,suchasmoldrapidprototypingtechnology,polishing,electroformingtechnologies,surfacetreatmenttechnologyaspectsofCAD/CAMtechnologyin
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