探讨高强度结构钢板的冷弯成型工艺

(,212008):,,:;;;:TG335.4:B:1001-3938(2005)03-0052-03,,,,,,,,,,,,,1:w(C)0.1%,w(C)0.1%0.2%(,,),w(C)0.9%(),GB500182002:,GB70088Q235GBl59194Q345,,2Q295Q345Q390Q420Q460,,490980MPa:Q345(12)SS490,,,,,B,,,,,2528320055©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,CP,,,BCrNiVTiCu,SP,,,,1Q345%w(C)w(Mn)w(Si)w(P)w(S)0.21.01.60.550.0350.035w(Al)w(V)w(Nb)w(Ti)0.0150.020.150.0150.060.020.22Q345/%0/J/MPa/MPa2234470650324259:1635mm,325MPa;3550mm,295MPa3,,,,4mm;25mm,,,,,,,,,,,,,;,,,,,,,,,;,,,,,,,,,,,,,,,4,,,,,(1),(2),,,(3):;,(4),,,,,35283:©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,5(1),,,,,;:,,,,(2),,;,,,,,,,,,,,,,(3),,,,,,,,,,,6,,,,,,,,,:[1]GB500182002,[S].[2]CECS2390,[S].[3].[M].:,1994.:(1968-),,,,()129#3-401()0511-8817039(E2mail)[e-mail]:2004-10-10:323,,,,3000,30,200512164520055©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.inganddoublefacedformingofCO2gasmetal-arcweldingtoweldedpipe.Preparedweldingprocessispracticalandreliableandprovidesreferencebasisforthesimilarweldingofweldedpipe.Keywords:CO2gasmetal2arcwelding;singleweldinganddoublefacedforming;weldingprocessEvaluationofFlawKindsDuringWeldedSeamUltrasonicTestHUANGLei,WANGChang2an,NIUHu2qianAbstractID:100123938(2005)03200492EAAbstract:Itpresentsqualitativeevaluationmethodofflawcombinedwiththepositionofflawandweldingprocedurethroughanal2ysisoftypicalflawsanditscharacterofreflectedwaveaswellaswave’sformsofflaws.Keywords:ultrasonictesting;weldedseam;flawevaluationDiscussiononColdBendingFormingProcessofHighStrengthStructurePlateZHANGWei2guoAbstractID:100123938(2005)03200522EAAbstract:Itanalyzesphysicalpropertyofhighstrengthstructureplateanditspropertyofcoldbendformingandputsforwardre2latedprocessimprovingmeasureinaccordancewithshelfmodule’scoldbenddefectsofcoldbendingcracks,sidewave,pouchedwave,longitudinalbending,cornerwrinkleandtwist,etc.occurredduringcoldbendformingproduction.Keywords:highstrengthstructureplate;coldbendingformingprocess;shelfsteelstructure;coldbendingeffectPreparingPipeAdditionalTechnicalSpecificationforCrossingChangjiangofYI2CHANGCrudeOilPipelineZHAOWen2mingAbstractID:100123938(2005)03200552EAAbstract:ItintroducespreparingprincipleandmaintargetrequirementofERWpipeadditionaltechnicalspecificationforYizhengChanglingcrudeoilpipelineprojectinchemicalcomposition,mechanicalproperties,geometricaldimensions,manu2facturingprocessandtestrequirementcombinedwithapplicationofERWpipeonthisprojectandaimedtospecialworkcondi2tionsofdirectionaldrillingcrossing.Itpointsoutthattoestablishpipeadditionaltechnicalrequirementshallconsiderfrompracti2caldemandandliveuptorationalmatchingharmonytogainfinalthebestquality2valueratio.Keywords:ERWpipe;pipecrossing;additionaltechnicalspecification;rationalmatching;quality2valueratioProductionMethodResearchtoInternalSurfaceHotCoatingofElectricWeldedPipeTranslatedandeditedbyLINLi2hengAbstractID:100123938(2005)03200572EAAbstract:Itpresentsaprocessmethodwhichithotappliesonthesurfaceofstripfirstandthenformedpipeswithstripswelltrea2ted.Itindicatesthemethodthatitcanadopttocompress10%thicknessafterapplyingandmakethecoatedlayerpreplasticde2formationaswellasappliesdifferentthicknesseslayers(i.e.graduallyincreasingapplyingthicknessfromcentrelineofstrip)a2longwiththedirectionofstripwidthduringcoatingtoincreasetheuniformityofcoatinglayersafterformingandimproveanti2cor2rosionspropertiesofcoatedlayersbyresearchingthepropertiesandproductionprocessofthisprocessmethodtoproducetwodif2ferentsizesweldedpipes.Keywords:electricweldedpipe;coating;anti2corrosionproperty;production;processPaintMistandYawpPollutionControlofPipeSprayPaintSectionWANGFu2mao,WANGFa2zhanAbstractID:100123938(2005)03200602EAAbstract:Thepipeshallbeprotectedwithsurfacepainttopreventpiperustduringtransportationforensuringthequalityofpipeduringgalvanizedpipeproductionprocess.Itanalysesthecomposinganditsharmofpaintmistcontaminationandintroducesde2signprincipleandprocessdisposalofsecondaryfilteringabsorptionclarifier.Itputsforwardyawpoptimizedesignschemeofcon2trolspraypaintfannerassemblytypedoublelayersoptimizingsoundisolationcover.Afterdisposal,contaminationofpaintmistandyawpatpipespraypaintsectiongainedeffectivecontrol,achievedprojecteffectwithdropyawpabove25dB(A)andmeettherequirementsofenvironmentyawpspecification.Keywords:steelpipe;paintmist;yawp;pollutioncontrolPreEvaluationonReliabilityofWest2EastGasTransmissionPipelineLUOJin2heng,ZhaoXin2wei,HanXiao2yi,DongBao2sheng,HuoChun2yongAbstractID:100123938(2005)03200622EAAbstract:Theactualpipelinegenerallyoccurcertainfailureprobabilityandreliabilityduetotheindeterminationofpipequality,materialproperty,internalpressure,accidentloadetc...ItintroducesamethodthatusefailureevaluationchartandMonteCarlomethodtocalculatepipelinereliabilityandpre2evaluatethereliabilityofWest2EastGasTransmissionPipelinebyadoptingtargetreliabilityabroad.TheresultsshowthatthereliabilityofWest2EastGasTransmissionPipelinefullymeetsrequirementsofspecifi2cationwhetheritexistcertainprobabilityofdefectsfai