钢管热涂EP和热涂PE的工艺特点及涂层性能对比

EPPE()EPPE,EPPE0,,,,,,,,EP()PE(),:,220250m,,5070m,,,EPPE,11.1EPPE,,:,,,,,,:,,;,X65X70X80(3),,,,,,,,,,,,,,:61:710065:029-8270338:13319273231(:2003-06-16)3327120041(1),,5(2)(3)(4)(5)(6)EP,PE1.21.2.1EP1.2.2PE22.1,,,;,,,,,,,,,4060m,SIS055900Sa2.5[1]0.5mm2.2,,,160200;,240330;812min,,DN25,,,DN25,,,,,,,,,2.3,,20%,EPPE,0.030.05MPa;DN15mm0.0050.015MPa,DN320mm0.040.06MPa,,,,,,1117s;28sCJ/T1202000,DN25mm,0.3mm,32DN50mm,0.354320041mm,DN65mm,0.4mm,,2.4,,,18010,,,,,,,510min,,,,,,,2.5,,,,,,,,,3PEEP3.1:,(DN65mm),3.2PEEP(1),,,,GB/T1202000,,,,(2),,(3),,,[2]4,,,,1,..,2002(3):42452..,2003(5):2325,1965,1988(),,::313000:0572-2260193E2mail:[e-mail](:2003-09-16)53271:EPPEKeywords:non2standardpipedeltamulti2sideshapemodeldesignMillingMachine&Non2cutEdgeProcessResearchChangTiechui,ChenWenhao(31)Abstract:Theedgeconditionofstripsteelisthemainfactorsaffectpipeformingandweldquality.Millingmachineappli2cationinweldedpipeproductionlinewillgreatlyimprovetheedgeconditionofstripsteel.Itanalyzesthemaincharacter,basicstructureandkeynoticeinmillingmachinedesign,alsodiscussesthenon2cutedgeprocedureforstripsteelinmillingmachineapplication.Keywords:weldedpipeproductionlinethemillingmachineedgeconditionofstripsteelbevelconditionedgecutqualityProcessCharactersofSteelPipeHeatPaintingEPandHeatPaintingPE,ComparisonofPaintPropertiesLiuHuiyi(33)Abstract:ItintroducesprocesscharactersofsteelpipeheatpaintingEPandheatpaintPE,processparameter,keypointsofequipmentsanditsoperation,alsomakesthequalityrequirementsandpaintspropertiescomparisonoftwokindsofpaints.Keywords:steel2plasticpipeheatpaintingEPPEprocessequipmentspaintspropertiescom2parisonRoundnessAnalysisinBothSidesofWeldSeaminSpirallySubmergedArcWeldedPipeZhangZhenglong(36)Abstract:Itmainlyanalyzesallprocessbeforeformingandenlargingdiametermachine,whichaffecttheweldseamsidesroundnessinspiralsubmergedarcweldedpipe,pointsoutthatthefullprocesscontrolfromuncoilingcanimprovetheseamsidesroundness.Itcaneffectivelysolvetheproblemofweldseamsidesroundnessinspiralsubmergedarcweldedpipe.Keywords:spiralsubmergedarcweldedpiperoundnessuncoilingmethodssteeledgescuttercutde2formingTheResearchandDevelopmentofFullAutomaticCleanFil2terChenFuxing,LiuJiang(38)Keywords:filerpressdifferencecleanautomaticblow2downre2circleTheAdjustmentofHi2FrequencyLongitudunalSeamWeld2edPipeMillandReasonsAnalysisofCommonProductionTrouble(2)ZhangJiping(39)Abstract:Itstatestherollerinstallationmethodandprepara2tionbeforehi2frequencylongitudinalseamweldedpipepro2duction,andsomecommonproductiontrouble;furthermoreitalsoroughlyanalyzesthetroublecauses,raisesthedetailedmethodstosolvethetrouble.Thisplaysthedirectiverolefortheoperatorsofweldedpipemill.Keywords:Hi2frequencylongitudinalseamweldedpipemilladjustmentproductiontroubleanalysismethodsRepairingWeldOperationMethodseffectonImpactRoughnessofRepairingWeldSeamYangShengxu,MaoNongzhao,NiuHui(46)Abstract:Themostimportantforgaspipelineistoensuretheoperationsafety.Thekeyfactoristheimpactroughnessofstripsteel,weldseamandHAZ,butrepairingweldseamisthemostweakness.Thisgreatlyaffectsthepipelineofhighstandard,highgradeandmiddle2thickwallthickness.TheX70spiralsubmergedarcweldedpipeappliedintothetestlengthofse2ning2lanpipelineandgaspipelinefromwesttoeast,wasweldedwithSH.J55electrodeinrepairingweldprocedure.ThismethodseffectivelysolvestheproblemofSharpyimpactroughnessvalueswhichhardlyreachthere2quirementoftechnicalspecificationunder-20,andtherepairingweldzonemettherequirementsofspecification.Keywords:weldedpiperepairingweldedseamweldlineenergyimpactroughnesspracticaloperationImprovingtheWeldPipeInsideDiameterAdjustmentMethodsandImprovingtheRatioofMaterialsAutomobileDrivingAxlePipeHanYeqi(50)Abstract:Itanalyzesthefactorsaffectingtheratioofmateri2als/automobiledrivingpipe,findsthemainreasoninsidedi2ametercannotmeettherequirements,inordertoimprovetheratioofmaterials/productsalsoraisesthemethodstodeter2minetheinsidediameteraccordingtowallthickness,im2provetheroundness,adjusttheinsidediameter.Keywords:auto2mobiledrivingaxleelectricalweldedpipeaffectingfactormethodsReducingManualBendandImprovingFormingStabilityChenQiwei,YanLixue(53)Abstract:DuringtheSpiralweldedpipeproduction,themainreasonsofmanualbendcausedinstripsteelareunusualalineofstripsteelinstripsteelconnectionweldprocess.Throughtheanalysisandresearch,Itraisesaneasyoperatedequip2mentofstripsteelalinelocation.Afteradoptedequipment,manualbendisgreatlyreducedandformingstabilityisim2proved.Thisimprovementplanalsocanbeusedintogroundmill.Keywords:hot2rolledstripsteelmanualbendspiralweld2edpipestripsteelconnectionweldprocessformingverticalrollertrim2weldmachinelocationTheDeterminationofWeldOverlapValueForSpiralHighFrequencyWeldedPipeWangGaotian(54)Abstract:Analyzingtheeffectsofweldoverlapvalueofspiralhighfrequencyweldedpipeonweldquality,comparingwithproductionpractice,itdeterminesthereasonableweldoverlapvalue.Overlapvalueshalllittlelessthedepthofthemeltingzoneofstripsteeledgespulsingdepthofchangeablemeltingzone.Basedontheprocedurecharactersandequipmentabili2