材质uhmwpe用途一级耐磨每件重量0.6（Kg）外观圆片产商山西天罡Ultra-highmolecularweightpolyethylene(UHMWPEforshort)isakindofpolyethylenewhosevolumeofmolecularbeyond150million.Molecularformula:—(—CH2-CH2—)—n—Density：0.936～0.964g/cm3Heat-transformationtemperature(0.46MPa)85℃Meltinglimit:130～136℃。ThefeatureofUHMWPEare：supremewear-resistance,excellentlow-temperatureimpact-resistance,self-lubrication,innocuity,water-resistance,chemical-resistance,andheat-resistance.ItsnatureismuchbetterthanusualPEasPEisnormallylowerheat-resistant,worseprocessforming,harderappearance,stiffer,worseslow-change-resistantcomparewithusualindustrialplasticandlargerswellingindex.Sinceitperformsbadinfluidityandhasmuchhighervisciditywhenmelting,UHMWPEisakindofrubber-likehigh-stickyandteasingsubstancewhichcouldonlybeproducedbypressingandagglomeratingintheearlyagebutnowisabletobeformedthroughextruding,injectionandblowing..SpecialperformanceUHMWPE’smechanicalperformanceissuperiortocommonHDPE.Notonlyithasoutstandingimpact-resistance,self-lubrication,lowcoefficientoffriction,high-temperatureslow-flowchange-resistanceaswellasstresscrackresistance,hightemperaturecreep,lowcoefficientoffriction,butalsoithasgreatselflubricating,excellentchemicalresistance,fatigueresistance,noisedampingresistance,radiationresistanceandsoon.Itsapplicabletemperatureis100～110℃tominus269℃.Withthedensityof0.935g/cm3，UHMWPEproductwith200millionmolecularhasstrongcrackandstretchresistanceof40MPa.Itsstretchratioofcrackis350％,thevolumeofbendingelasticityis600MPa.,cantileverbreachisunbreakabletoimpact,andwastevolume(MPCmethod)is20mm。ApplicationUHMWPEisabletosubstitutecarbonsteel,stainlesssteel,bronzeandothermaterialappliedinindustriessuchastextile,paper-making,food-processingmachine,transportation,medicine,coalmining,chemistryetc.Settextileindustryforexample,UHMWPEcanbeappliedasimpact-resistantpartsofshuttle-sendingdevice,pickingstick,gear,coupling,sweepingflowerpoles,bufferblocks,eccentricblocks,rodbushings,swingbackbeamandsoon.Alsoitcanbeappliedascratecovers,water-sh***ingsheet,compressingparts,tie-in,sealedaxisoftran***issionmachine,jockeyroller,sh***er,filteretcinpaper-makingindustrywhereasworkedasafillercontainer,fillergarageandliningplateofslidenotchintransportationindustry.UHMWPEcanbeprocessedaspartsandcomponentsofallkindsofmachinery,includinggears,wormgear,worm,bearingsoffoodmachinery;pumps,valves,baffle,plateofchemicalindustry;heartvalves,short-shapedsurgicalparts,artificialjointsandbirthcontrolimplantsinMedicalindustry;.skatingfloor,rollingpathforbowling,snowboarding,motorsledpartsforsportsindustry;alsoitcanbemanufacturedbulletproofvests,aircraftseats,shipping,fishing,ropeandsoonwhenprocessedashighmodulusfiber.TheapplicationofUHMWPEisaswideaspolyfluortetraethyleneandpolyamide.Thefriction-resistanceofcarbonsteelcanbarelycomparewithUHMWPEwhilemakingitintogears,bearings,bearings,starwheels,valves,pumps,rails,sealingpacking,equipment,lining,***oothchangeplates,artificialjoints,etc.,fiberforbullet-proofvests,ropesandsoon.Thoughultra-highmolecularweightpolyethylenepossessessomanyexcellentproperties,suchanexcellentengineeringplasticwasbarelyknown.ItwasmainlybecauseofinadequateprocessingmethodsofmeltcharacteristicsofUHMWPEinthepast.Thetechniqueswerebasicallystuckinsuppressionofasinteringprocesswhichwasoutoftime.However,withthecontinuousdevelopingofprocessingtechnologyofUHMWPE,itsproductsh***ebeenappliedsuccessfullyinmanyfieldsrecently.)