ceet程序文件ndt分包版可版

ASMEQUALITYCONTROLASMESHOPCONSTRUCTIONANDFIELDSITEASSEMBLYOFPRESSUREVESSELSANDPARTINACCORDANCEWITHASMEBOILERANDPRESSUREVESSELCODESECTIONⅧDIVISION1适用于ASME规范第Ⅷ卷第1分册DOCNO.文件号：CEET/QPREVISION版次：0DATE日期 编号CEET/QP- UNCONTROLLEDCNOOCEnerTechEquipmentTechnologyCo.,Address:SouthSideatWestEndofOilSouthRoad,DongguOilVillage,TangguDistrict,Tianjin,P.R.地址：市塘沽区东沽石油新村石油南路西段南Zip:+86-Fax传真：+86-22-Doument1 sDistributionControl技术文件控制程02ProceduresforMaterial03MaterialCodedMarkingandItsTransferControl04MaterialReceivingExamination05CuttingPartsExamination06FormingPartsExamination07MachiningCuttingPartsExamination08Fit-upExamination09HydrostaticTest0ProcedureforIdentificationofWelderAndWelding0WeldingMaterialControl0WeldingExamination0ProcedureforWeldingRepairofDefectsinWeldor0ProcedureforPostweldHeat0TechnicalsDistributionControlby编制Date日期by审核Date日期by批准Date日期ThisproceduredescribesthedistributionoftechnicalsofpressurevesselandthepartsaccordingtoASMESectionⅧDiv.1,anddefinesthecontrolofobsolete ASME1分册制造的压力容器及其部件的技术文件的分发与作ThisprocedureisthecomplementoftheQualityControlManual,andshallbeusedincombinationwiththeQualityControlManual.TheDeputyChiefEngineershallberesponsibleforthedistributionofQCManualandQCproceduresinaccordancewiththedistributionrequirementsofQCManual.副总工程师负责按照QC手册的分发要求分发QCQCTheClerkshallberesponsibleforthedistributionoftechnicalssuchasEachDepartmentManagerisresponsibleforassuringthatthetechnicalsaredistributedinaccordancewiththisQCManualandthisQCProcedure. AlltechnicalsshallbeidentifiedwithNo.andrevisionNo.bytheAfterthe plishmentofdesignsandmanufactures,theyshallbetransmittedtothe Clerk.The Clerkwillkeeptheoriginalsinthearchivesanddistributethecopiestoeachdepartment.ThecopiesofdesignsandmanufacturingsshallbeidentifiedwithworkNo.andstampedwith“ASME”toshowtheCodework.Alluncontrolledsshallbeidentifiedbystam“ForReferenceWhenalltechnicalsarestamped,redsealcanbeusedandtheduplicatingsealandblackandwhitesealcannotbeused.技术文件应盖红色，复印或黑白无效Uncontrolledcopiesofthesarecurrentatthetimeofdistributionandneednotbemaintainedcurrentafterissue.DistributionandObsoleteof TheDeputyChiefEngineerwilldistributetheQCManualandQCProcedureusingManualHolderList(FormNo.1-2)torecordandtotherecipients.副总工程师使用“质量控制手册持有者名册”（1-2）记录并分发QCQC程序文件至TheClerkshalldistributethesusingDistributionList(FormNo.3-3)totherecipientsasspecifiedinTable1toassurethatthelatestrevisionoftechnicalisusedinCodemanufacture.产品的制造过程中使用的技术文件为版本。ThetechnicalsshallbedistributedtodepartmentsspecifiedinTableTheClerkshallrecetherevisionandeditionchangingshallberecedaccordingtotheoriginaldistributingamounts,andisresponsibleforcallbackoftheobsolete 版本更新时，文件保管员应按照原始文件的分发数量分件的更新版本，并负责收回作废文Noonecanmakethetechnicalsobsoleteanddestroyedwithoutpermission.WhentheCodeproductsfinishedmanufacturingortheQCManualisoutofdate,the Clerkisresponsibleforcallingbackthetechnicalswhichshallbedestroyedorstampedwith 不得废弃或销毁技术文件。当规范产品完工时或QC手册更新时，文件保管员 TechnicalControl表 技术文件控制Distributed份1QCEachDept.ManagerProcessEngineer工艺工程师WeldingEngineer焊接工程师NDEEngineer MaterialEngineer材料工程师Examining 12QCProceduresQC程序文件DepartmentsandpostsreferredintheQCProceduresQC程序相关的与各岗13ProductionDesign设计 车1Distributed份4DesignDesignEngineer,Workshop,QualityControlDept., 15DesignDesign16MaterialQualityControlDept,Purchasing17PurchaseQualityControlDept,Purchasing18ProcessFlowWorkshop,QualityControl19MaterialConsumptionSummaryListWorkshop,QualityControlDept,PurchasingDept.1Workshop,QualityControl1Workshop,QualityControl1焊接材料 1 Workshop,QualityControl1Workshop,QualityControl11ProceduresforMaterialPreparedby编制 Reviewedby审核 Approvedby批准 ThisProcedureissupplementaltoQCManualformaterialTheMaterialRequisitionpreparedbytheDesignDepartmentisthebasisofmaterialpurchasing,andissupplementedwiththePurchaseSpecificationordrawingsorotherspecificprocedurewhichspecifiestherequirementsnotcoveredbytheMaterialRequisition.ThePurchaseDepartmentshallmaintainclosecontactwithvendorsandaskforinformationonprocurementstatusandnecessarysfromthevendorsuchastheirprocedures,themilltestreportsorofcomplianceetc.,forreviewingbytheMaterialEngineer.IfnecessarythePurchaseDepartmentshallapplyforwitnessofexaminationsatvendor'sshop.材料工程师。必要，采购部门应要求供应商车间的相关检验。PurchaseManagershallberesponsibleforcollectingandevaluatingthestatusofproductsofvendorandhastheresponsibilitytopreparetheQualifiedVendorList,whichshallbeapprovedbytheProcurementVice.ThePurchaser,belongingtothePurchasingDepartment,shallselectavendorandpreparethePurchaseOrderinaccordancewiththeMaterialRequisition panyingwithitssupplementary,whichshallbeapprovedbythepurchaseManager.Duringtheperiodofcementandaftertheorderhavingbeenced,whenthePurchaseOrderhastobechangedpertainingtoanyrequirementwhichisspecifiedinMaterialRequisitionduetocertainreasons,therevisedPurchaseOrdershallbereviewedbytheoriginaldesignerandapprovedbytheMaterialEngineer.ReceivingExaminationandWhenmaterialsarereceived,theWarehouseKeepershallcethe ingmaterialsandpartsindesignatedareaandrequesttheExaminerforreceivingexamination.Thereceivingexaminationshallbemadeinaccordancewiththe"MaterialReceivingExaminationProcedure"(CEET/ASME-4-3,Rev.0).AcceptablematerialsforCodeItemsshallbesegregatedfromthosematerialsfornon-CodeItemsanddistinguishedbylabeling.ASMETheidentificationmarkofacceptablematerialsshallalwaysbekeptvisible.Ifnecessary,orwhendisappearanceofsuchmaterialmarkingsduetoscratchesorseparationoftagsoccursduringstorage,theWarehouseKeeper paniedwiththeExaminershallcheckupthosematerialswithmaterial,packinglistand"ReceivingExaminationRecord"withoutdelay.Afterverifyingthatnodoubtexists,thematerialshallbemarkedaccordingtotheoriginalidentification验收材料的识别标记始终须保持可见。必要，或在过程中发生的的材料标记，因MaterialEngineershallcheckthestatusofmaterialduringstorageandgiveinstructionstotheWarehouseKeeperforimprovement.Stainlesssteel,whenceduponsteelshelf,shallbesetonawoodenboardtopreventfromThePurchasershallpreparetheMaterialIssuanceCardinaccordancewiththeMaterialCuttingSketchandMaterialConsumptionSummaryListwhichispreparedbytheProcessEngineer.TheWarehouseKeeperissuesthematerialtotheForemanaccordingtotheapprovedMaterialIssuanceCard.Heshallcheckthedesignation,name,sizeandtyofthematerial.HeshallnotissuethematerialuntilhesatisfieshimselfthatthematerialisingoodconditionandcoincidencewiththeMaterialIssuanceCard.TheMaterialIssuanceCardshallbefiledbytheWarehouseKeeper.仓库保管员依据核准的材料卡发出材料给班长。仓库保管员应检查材料的牌号，名称，尺寸及数量。如果材料与材料卡的条件不一致，仓库保管员不应材料。仓库保管员须把材料卡归档。TheWarehouseKeeperhastheresponsibilityforsetting ingmaterialingoodordertoprotectitfromscratching.Pipesshallbebundledaccordingtoitsdesignationaswellasitssizeandattachedbylabelduringstorage.Othersmallpartsshallbecedinboxandattachedbylabel.Forthematerial,carelessorroughhandlingisprohibited.仓库保管员负责已接收入库材料的管理，使其免受刮伤。应根据、名称及大小在一起。短小须根据放入箱内。防止随意放置。MaterialCodedMarkingandItsTransferControlPreparedby编制 Reviewedby审核 Approvedby批准 Acceptedby认可 ThisprocedureappliestocontrolcodedmarkingforthepressurevesselandpartsofthepressurevesselfabricatedundertherequirementsoftheASMECodeSectionVIIIDiv.1.ThisprocedureshallbeacceptedbyAIpriortoimplementation.AICodedControlofCodedWhentheoriginalmarkingsofmaterialareunavoidablycutout,orthematerialisdividedintotwoormoreparts,thecodedmarkingmaybeusedinaccordancewiththeruleofparagraph3ofthisprocedureinlieuoforiginalmarkingrequiredbymaterialspecification.Aftermaterialisaccepted,thecodedmarkingtraceabletotheoriginalrequiredmaterialmarkingshallbeassignedandregisteredontheCodedMarkingListandrecordedontheMTRorofCompliance(CC)andReceivingExaminationRecord(seeQCManualForm4-5A、B)bytheExaminer.Whenthematerialisacceptable,thecodedmarkingshallalsobestampedormarkedasapplicableonthematerialbytheExaminerandverifiedbytheMaterialEngineerwhoshallsignatureanddateonMTRorCCandMaterialReceivingRecord.TheWarehouseKeepershallissuematerialinaccordancewiththeapprovedMaterialIssuanceCard(SampleFormNo.4-8).TheOperatorshalltransferthecodedmarkingtoeachpressurepartaccordingtotheMaterialIssuanceCard.TheExaminershallrecordthecodedmarkingofpressurepartstotheMaterialTraceabilityRecord(QCManualForm4-9)andverifythetransferofthecodedmarkingwasdoneConstitutionofCoded Structural Tubeand Boltor Roundbar ExpressionofCoded× MaterialThelast2No.of RegisteredSerial Examples:P13-A001showsthetewhichisregisteredinSerialNumber001in例如P13-A0012013001F13-A002showstheforgingwhichisregisteredinSerialNumber002in2013.F13-A0022013002。Theregisteredserialnumbermaybecodedfrom001annual.Howeverthesamecodedmarkingnumbershallnotberepeated.TransferofMaterialCodedMaterialforpressurepartsshallbelaidoutsothatwhenthevesseliscompleted,thecodedmarkingrequiredbythisregulationwillbeinlyvisible.Thetransfersofmarkingshallbemadepriortocuttingormachining.Whenthematerialisintotwoormoreparts,thecodedmarkingofthematerialshallbetransferredtoeachofthosepartsbytheOperator,andshallbeverifiedbytheExaminer.Insomecases,forinstance,machiningbolts,studs,nuts,someflangesandblindsetc.,theOperatormaytransfercodedmarkingimmediayaftermachining.ThentheExaminershallverifythecodedWheretheserviceconditionsprohibitdie-stamformaterialidentification,andwhensospecifiedbytheCodeorcustomer,themarkingsrequiredshallbemarkedinpaintortag,themarkingmustberecordedsothateachpartwillbepositivelyidentifiedinitspositioninthefinishedvesseltothesatisfactionofthe或作出要求的标记，并记录标记，以便每块材料都能在完工压力容器位置上正确识别出，AI认可。TheWorknumberandPartnumbershallbedie-stampedorpaintedoneachpartbesidethecodedThepaintedmarkingwhenusedshallbekeptonthematerialinthewholemanufactureprocesstilltheendofthework.TheOperatorshallensurethatthelabelismaintainedateveryoperationandwheneverfoundthatthelabel esuncleartheOperatorshallre-markimmediay.Whenissuingtheweldingmaterial,theweldingmaterialwarehouse(levelⅡ)keepershalllabeltheweldingmaterialcodedmarkingonthethermostatforelectrode,spoolandfluxbarrel,whichshallbeverifiedbyExaminerbeforeweldingonproduct.Thetagshallbelabeledontheheadoftheremainingweldingwireimmediayaftertheissuanceofweldingwire.焊丝后应立即在余下的焊丝头部补上ContentsandMethodoftheContentsofMarkingForanymaterialsuchaste,barstock,structuralshape,tubularproduct,acodedmarkingshallstampedinaccordancewiththerequirementsofparagraph3MethodofFortes,tubesandpipeswhenthethicknessis1/4in.(6mm)andlarger,themarkingshallbedonebydie-stamp.Whenthethicknessislessthan1/4in.(6mm),itshallbedonebyPaint.1/4in.6mm1/4in.(6mm)以下以油漆Forboltsorstuds,nuts,forgings,flangesandblinds,itshallbedonebydie-Thestainlesssteelshouldusenon-chlorineandnon-sulfurmarkpentomakeoutasign,butthesketchshouldbeusedtodescribetheproductmaterialusagecondition,labelingthematerialcodedmarkingkeepinthearchivesforlaterreference. MaterialReceivingExaminationPreparedby编制 Reviewedby审核 Approvedby批准 ThisprocedureappliestothereceivingexaminationofmaterialandvesselorpartsusedfortheASMECodeSectionVIIIDiv.1,Codeitems.ThisprocedureissupplementaltotheQCManualandshallbeusedinconjunctionwiththeSection4oftheQCManual.Themeasuringandtestequipmentusedfortheexaminationshallbecalibratedandbeusedintheeffectiveperiod.TheExaminationteFortes,thereceivingexaminationshallbemadeinaccordancewiththerequirementsspecifiedintheMaterialRequisition(Form4-1ofQCManual)andPurchaseSpecification.TheMaterialTestReportorCertificationofComplianceshallbeco withthereceivingmaterial.（定的要求进行。材料质量证明书(MTRCC)应与验收的材料相符。AlltestobeusedinconstructingCodeitemshallbevisuallyexaminedfortheimperfectiononsurfaceandcutedge.Dimensionsshallbemeasured.teshallbecheckedtoensurethatthethicknessatanylocationisnotlessthanthatrequiredinmaterialpurchase TheoriginalidentificationmarkingsonmaterialshallbecheckedagainsttheMTRorCC,andshallcomplywiththerequirementsofapplicablematerialspecification.Tube,Pipeand管材（GD）Fortube,pipeandforgings,thematerialshallbeacceptedinaccordancewiththeMaterialRequisitionandPurchaseSpecification.Ifthematerielspecificationprovidesthemarkingofeachpiecewiththespecificationdesignation,includingthegrade,type,andclassifapplicable,themarkingofeachpieceshallbesoverifiedinaccordancewiththematerialspecification.Ifthematerialspecificationdoesnotprovidethemarkingofeachpieceasindicatedin2.2.1above,thematerialshallbeacceptedascomplyingwiththematerialspecificationprovidedthefollowingrequirementsaremet:Eachbundle,liftorshipcontainerismarkedwiththespecificationdesignation,includingthegrade,typeandclassifapplicablebythematerialmanufacturerorr.Thematerialshallbehandledandstoredinthewarehouseandworkshopinbundleorcontainer,andeachbundleorcontainershallbeidentifiedwiththematerialmarkingsasrequiredbymaterialspecification.Fortubeorpipewherethelengthisnotadequateforthecompletemarkinginaccordancewiththematerialspecification,thematerialshallbeacceptableascomplyingwiththematerialspecification,providedtheacodedmarkingisappliedtoeachpieceofthetubeorpipebythematerialr,andtheappliedmarkingistraceabletothespecificationdesignation,includingthegrade,type,andclassifapplicable.PurchasedFormedForpurchasedformedheads,themarkingsshallbecheckedagainstMaterialTestReportandCCfortraceability.TheheadtemarkingshallcomplywiththeapplicabletematerialTheshapeofheadshallbeexaminedusingaaccurayformedtemtes,andtheresultsshallcomplywithUG-81asapplicable.ThedimensionsshallbecheckedforconformancetothedesignofComplianceshallcomplywiththerequirementsofMaterialRequisitionandPurchaseStandardStandardpartsasdescribedbyUG-11shallbemarkedwiththenameortrademarkofthepartsmanufacturerandsuchothermarkingsasarerequiredbythestandard.Suchmarkingsshallbeconsideredasthepartsmanufacturer’scertificationthattheproductcomplieswiththematerialspecificationandstandardsindicatedandissuitableforserviceattheratingindicated. AllmaterialsthataretobetestedinaccordancewiththerequirementsofCharpyImpactTestshallbeexaminedforsurfacecracks.ExaminationTheMaterialEngineershallchecktheMTRorCCagainsttheMaterialRequisitionand/orthePurchaseSpecificationforcompliancewiththematerialspecification.TheExaminershallverifythatthemarkingofmaterialistraceabletotheMTRorCC,andcomplywiththerequirementsofthematerialspecification.Thethicknessofteshallbemeasuredbyultrasonicthicknesstester,andthelengthandthewidthbysteeltape.Themeasuringpositionsfortethicknessshallbeawayfromcuttingedgeatleast3.94in.(100mm)andatleast5points.(4pointsatcornersand1pointatcenter).in.（100mm1个点Forpipesandtubes,thicknessshallbemeasuredatbothendsofpipeortubebyvernierParticularattentionshallbegiventocutedgesandotherpartsofrolledtewhichwoulddisclosetheexistenceofseriouslamination,shearingcracks,andotherimperfections.Thisexaminationmaybeperformedbyvirtueofmagnifier.MechanicalpitsorabrasionsmaybemeasuredbyusingthedepthWhenrequired,thesurfaceofmaterialshallbeinspectedbyPTorMTexaminationfordetectingthesurfaceimperfection.PT或MTTheExaminershallfillinthe“ReceivingExaminationRecord”(Form4-5ofQCManual)afterreceivingexamination,andreviewthe“ReceivingExaminationRecord”andMTRorCC.Acopyofthe“ReceivingExaminationRecord”shallbesubmittedtothePurchaseSectionastheevidenceof材料验收后，检验员应填写“材料到货检验记录”(No.4-5)，并将“材料到Theacceptablematerialshallbeidentifiedwithauniquecodedmarkingwhichistraceabletotheoriginalmaterialmarkings.Forunacceptablematerialandpart,theNonconformityReport(FormNo.6-2ofQCManual)shallbeprovidedandtransmittedtotheMaterialEngineerforaction.TheNonconformityTag(FormNo.6-1ofQCManual)shallbestuckontheunacceptablematerial.（2以采取措施。应在不合格品上贴上“停止（质量控制手册样表No.6-Afterthedispositiontothenonconformityisdetermined,theExaminershallimplementthedisposalaccordingtoparagraph6.4ofQCManual.CuttingPartsExaminationPreparedby编制 Reviewedby审核 Approvedby批准 ThisprocedureappliestotheitemswhicharefabricatedinaccordancewiththeASMECodeSectionVIIIDivision1.Theedgesofallpartswhicharecutbyoxygenorarccuttingshallbeexaminedbythisprocedureandmeettherequirementsofthisprocedure.ExaminationPriortocutting,theExaminershallexaminethescribingdimensionsofthecuttingpartsandcheckupwhetherthemarkingtransferringisperformedcorrectly.Thedimensionsofcuttingpartsshallbecheckedwiththerulers,steeltapeorworkingtemAftertheexaminationrequirementsindicatedin2.1abovearemet,theExaminershallmakeacheckingmark(trilal)directlyabovethematerialmarkingtransferredbyoperators.Whentes,edgeofheads,andotherpartsarecuttoshapeandsizebyoxygenorarccutting,allslaganddetrimentaldiscolorationofmaterialwhichhasbeenmoltenshallberemovedbyanymechanicalmeansthatproduceasmoothfinish.Endsofnozzlesormanholeneckswhicharetoremainunweldedinthecompletedvesselmaybecutbyshearingprovidedsufficientadditionalmaterialisremovedbyanymethodthatproducesasmoothfinish..Incasetheoriginalidentificationmarkingsorcodedmarkingsareunavoidablycutout,orthematerialisdividedintotwoormoreparts,itshallbeaccuraytransferred,priortocutting,byoperatortoalocationwherethemarkingwillbevisibleonthecompletedvessel.TheExaminershallcheckdefectsinparts.WhenthedefectsinpartscomeintobeingtheymayberepairedprovidedacceptancebytheExaminingEngineerandtheAuthorizedInspectorisfirstobtainedforthemethodandextentofrepairs.检验员应检查零件是否有缺陷。缺陷，在征得检验工与AI对零件修补范围与修补方Aftertheexaminationrequirementsabovearemet,theExaminershallsignhisnameontheCOLandthenthesubsequentprocesscangoon.FormingPartsExaminationPreparedby编制 Reviewedby审核 Approvedby批准 ThisProcedureappliestotheformingpartsofvesselswhicharefabricatedinaccordancewiththeASMECodeSectionVIIIDivision1.ASME1ThedirectvisualtechniqueisemployedintheThemeasurementsandequipmentusedforexaminationshallbecalibratedandbeusedintheeffectiveperiod.ExaminationPermissibleOut-of-roundnessofCylindrical,ConicalandSphericalSInternalThesofacompletedvesselshallbesubstantiallyround.Thedifferencebetweentheumandminimuminsidediameteratanycrosssectionshallnotexceed1%ofthenominaldiameteratthecrosssectionunderconsideration.Whenthecrosssectionpassesthroughanopeningorwithin1I.D.oftheopeningmeasuredfromthecenteroftheopening,thepermissibledifferenceininsidediametergivenabovemaybeincreasedby2%oftheinsidediameteroftheopening.Forthevesselswithlongitudinallapjointsthepermissibledifferenceininsidediametergivenabovemaybeincreasedbythenominalte2%；对有搭接纵缝的容器，内径允许偏差可增加一个板材的公称厚度。1Theout-of-roundnessofthesisprescribedin2.1.1.Thessofvesselsfabricatedofpipemayhavepermissiblevariationsindiameter(measuredoutside)inaccordancewiththosepermittedunderthespecificationcoveringitsmanufacture.Theumplus-or-minusdeviationfromthetruecircularformshallnotexceedtheumpermissibledeviationeobtainedfromFig.1.Whenpointsfallaboveorbelowthesecurves,e=1.0tore=0.2tshallbeusedrespectively.Where,thevalueoftshallbedeterminedas从真正圆形的最大正负偏差不应超过用图1e。对于曲线以上或以下e=1.0te=0.2t，tForcylindersandsphereswithbuttjoints,tisthenominaltethicknesslesscorrosionForcylindersandsphereswithlongitudinallapjoints,tisthenominaltethicknessandthepermissibledeviationist+e.对于纵向搭接接头的圆筒体与球体，tteWherethes atanycrosssectionismadeofteshavingdifferentthickness,tisthenominalthicknessofthethinnesttelesscorrosionallowance.Forconesandconicalsections,thevalueoftshallbedeterminedasabove,exceptthattshallberecedby.Whereteistheeffectivethicknessofconicalsectionte=tcosα.对于锥形体与锥段，tttete为锥段的有te=tcosα。SharpbendsandflatspotsshallnotbepermittedunlessprovisionismadeforthemintheToleranceforFormedTheinnersurfaceofatorispherical,toriconical,hemispherical,orellipsoidalheadshallnotdeviateoutsideofthespecifiedshapebymorethan1.25%ofDnorinsidethespecifiedshapebymorethan0.625%ofD,whereDisthenominalinsidediameterofthevesselsatpointofattaent.Suchdeviationshallnotbeabrupt.TheknuckleradiusshallnotbelessthanHemisphericalheadsoranysphericalportionofatorisphericalorellipsoidalheaddesignedforexternalpressureshall,inadditiontosatisfying2.2.1above,meetthetolerancesspecifiedforspheresin2.1.2usingavalueof0.5forL/Do.Theskirtsofheadsshallbesufficientlytruetoroundsothatthedifferencebetweentheumandminimumdiametersshallnotexceed1%ofthenominaldiameter.Whentheskirtofanyunstayedformedheadismachinedtomakeadrivingfitintooroveras,thethicknessshallnotbereducedtolessthan90%ofthatrequiredforablankheadorthethicknessofthesatthepointofattaent.Whensomachined,thetransitionfromthemachinedthicknesstotheoriginalthicknessoftheheadshallnotbeabruptbutshallbetaperedforadistanceofatleastthreetimesthedifferencebetweenthethicknesses.TheskirtlengthofheadshallmeettherequirementsofLugsandFittingAttaAlllugs,brackets,saddletypenozzles,manholeframes,reinmentaroundopenings,andotherappurtenancesshallbeformedandfittedtoconformreasonablytothecurvatureofthesorsurfacetowhichtheyareattached.ThedimensionsofallformedpartsshallconformtothosespecifiedinThepressureretainingweldcoveredorextendedwithpartsshallbegroundflushforsuchportion,orsuchpartshallbenotchedorcopedtoclearthosewelds.Allformedpartsshallbeexaminedafterformingforthepurposeofdetecting,asfaraspossible,defectswhichwouldaffectthesafetyofthevessel.ExaminationExaminationforOut-of-roundnessofCylindrical,ConicalandSphericalS圆筒形、及球形壳不圆度检InternalThediameterofthesshallbemeasuredontheinsideofthevessel.Themeasurementaboveshallbeinanynenormaltotheaxisofrevolutionforcylindersandconesandintheneofanygreatcircleforspheres.Eachcoarseformedsshallbemeasuredattwoendsofthes.Iftheshasopenings,ameasuringcrosssectionshallbeaddedoneachsideoftheaxisofeveryopening.TheaddedsectionsarebothwithinoneI.D.oftheopeningmeasuredfromthecenteroftheopening.Forconesandconicalsections,thepositionstobecheckedarethesameasin3.1.1b)Forthesphere,themeasurementsshallbemadeatleast4crosssections.Ifithasanopening,themeasurementsoftwocrosssectionsshallbeatthepositionsbothwithinoneI.D.oftheopeningmeasuredfromthecenteroftheopening.4Theout-of-roundnessofthevesselsmadeofpipeshallbemeasuredatoutsideofvesselswithMeasurementsshallbemadefromasegmentalcirculartemtehavingthedesigninsideoroutsideradiusandachordlengthequaltotwicethearclengthobtainedfromFig.2.ThevalueofLandD0inFig.1andFig.2shallbedeterminedasfollows.221中的LD0值应下面所述确定：ForL=totallength,in.ofatubebetweentube-sheets,ordesignlengthofavesselsection,takenasthelargestofthefollowing: Thedistancebetweenhead-bendlinesplusone-thirdthedepthofeachformedheadiftherearenostiffeningrings(excludingconicalheadsandsections); Thedistancebetweencone-to-cylinderjunctionsforvesselswithaconeorconicalheadiftherearenostiffeningrings;Thegreatestcenter-to-centerdistancebetweenanytwoadjacentstiffening Thedistancefromthecenterofthefirststiffeningringtotheformedheadtangentlineplusone-thirdthedepthoftheformedhead(excludingconicalheadsandsections),allmeasuredparalleltotheaxisofthevessel; Thedistancefromthefirststiffeningringinthecylindertothecone-to-cylinderjunction;D0=outsidediameterofcylindricalscourseortube,in.ForConesandConicalLe=0.5L(1+Atthelargediameterend:L=Le,Do=在最大直径端：LLeDoAtthesmalldiameterend:L=Le(DL/Ds);Do=在最小直径端：LLe(DL/DsDoAtthemidlengthdiameter:L=Le[2DL/(DL+Ds)];Do=0.5(DL+在中部直径处的：LLe[2DL/(DLDsDo0.5(DLAtanycrosssectionhavinganoutsidediameterofDx:L=Le Do=Dx：LLe(DL/Dx);DoNote:Le=equivalentlengthofconicalsection,Ds=outsidediameteratsmallendofconicalsection,DL=outsidediameteratlargeendofconicalsection,LeForSpheres,Lisone-halfoftheoutsidediameterThickness,Thickness,OutsideDiameterDesignLength÷OutsideOutsideDiameterFig.2UMARCOFSLEFTUNSUPPORTEDBECAUSEOFGAPINSTIFFENINGRINGOFCYLINDRICALSUNDEREXTERNALPRESSURE2Thesegmentalcirculartemteshallbecedinanynenormaltotheaxisofrevolutionforcylindersandconesandintheneofanygreatcircleforspheres.MeasurementsshallbetakenonthesurfaceofthebasemetalandnotonweldsorotherpartsoftheThetethicknessshallbemeasuredwiththemeterorExaminationofFormedDeviationofsurfaceshapeofformedheadsshallbemeasuredwiththesegmentaltemteshavingthedesigninsideoroutsidediameterandsteelrulerorpluggages.Out-of-roundnessofskirtoftheheadsshallbemeasuredwithasegmentaltemtehavingthedesigninsideoroutsideradiusandrulers.Skirtlengthofformedheadsshallbemeasuredwithsteelrulers.TheknuckleradiusoftheheadshallbemeasuredwitharctemteshavingthedesigninsideThethicknessoftheformedheadshallbemeasuredontheknuckleradiusoftheheadbyUTthicknesstester.Thedeviationofthesurfaceshapeoftheheadsshallnotbeabruptandshallbeexaminedwithvisualtechnique.ThemeasurementshallbetakenfromthesurfaceofthebasemetalandnotonExaminationforLugsandFittingAttaThecurvatureofallpartswhichareattachedtothesorheadofv