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1、China'splasticmoldindustryanditsdevelopmenttrendFirst:china'splasticmoldindustryChina'sindustrialplasticmouldsfromthestarttonow,aftermorethanhalfacentury,therehasbeengreatdevelopment,moldlevelshavebeengreatlyenhanced・Mouldhasbeenatlargecanproduce48-inchbig-s
2、creencolorTVMoldedCaseinjectionmold,6.5kgcapacitywashingmachinefullofplasticmolds,aswellastheoverallcarbumpersanddashboards,andotherplasticmouldprecisionplasticmolds,thecameraiscapableofproducingplasticmould、multi-cavitymoldsmallmodulusgearandmoldingmold.—Su
3、chasTianjinandYantaidaysElectricalCo.,LtdPolarisIKCo.manufacturedmulti-cavitymoldVCDandDVDgear,thegearproductionofsuchsizeprecisionplasticparts,coaxial,beatingrequirementshavereachedasimilarforeignthelevelofproduct,butalsotheapplicationofthelatestgeardesigns
4、oftwaretocorrectcontractionasaresultofthemoldingprofileerrortothestandardinvoluterequirements.Productioncanonly0.08mmthicknessofatwo・cavitymoldandtheairCupdifficultyofplasticdoorsandwindowsoutofhighmodulus,andsoon.Modelcavityinjectionmoldingmanufacturingaccu
5、racyof0.02to0.05mm,surfaceroughnessRa0.2pm,moldquality,andsignificantlyincreaselifeexpectancy,non-hardeningsteelmouldlifeupto10〜30million,hardeningsteelformupto50〜10milliontimes,shortenthedeliverytimethanbefore,butstillhigherthanabroad・Thepresentconditionoft
6、heplasticmouldlevelathomeandabroad:Thewhole,Chinaplasticmouldwhetherinquantity,orinquality,technologyandabilityhasmadeagreatprogress,butwiththeneedsofthedevelopmentofthenationaleconomy,theworldadvancedlevel,comparedtoagapstill.Somelarge,sophisticated,complex
7、,thelonglifeofhigh-gradeplasticmouldstillneedtoimportalotofeveryyear.Inthetotalamountofdemandexceedingsupplyatthesametime,somecheapplasticmoldbutsupplyexceedsdemand,marketcompetitionisintense,andsometechnicalcontentistoohighmiddle-gradeplasticmouldalsohasthe
8、trendofsupplyexceedsdemandJoiningtheWTO,plasticmoldanddieindustrytobringhugechallenge,atthesametimebringmoreopportunities・BecauseofChina'scheapplasticmoldtoproducts,productpriceobviousadvantages