Welder,sPerformanceQualificationTestProcedure焊工技能評定程程序PREPAREEDBY編制制CHECKEDDBY審核核APPROVEEDBY批準(zhǔn)準(zhǔn)DATE日期期0Rev.修訂號(hào)Date日期Descripption更改說明Signatuure簽字CheckeddBy校核1.Scoppe1.1Theeproccedureeisaapplieedtotheqqualifficatiionoffweldder’sperrformaancefforP3311prrojecttofAAA.1.2Thiisproocedurreisprepaaredaaccorddingttotheerequuiremeentinnsecttion77.3offAPI650,asweellassthePartIXoffASMEE.2.WelddersWeldersspartticipaatingperfoormanccequaalificcationnmusttbesskilleedworrkerswithmanyyearssofeexperiienceontaankweeldingg.3.ConttentsofQuualifiicatioon3.1Basiis:ASSMEⅨ:ParrtQW,ChhapterrIII;;3.2Possitionn:forrShieeldinggMetaalArccWeldding((SMAW)),2G(horiizontaalwellding)),3G(vertticalweldiing)aand4GG(bacckwellding))willlbettestedd;3.3Forrsubmmergeddarcweldiing(SSAW),2G(hoorizonntalwweldinng)weeldinggposiitionwillbeteested;;3.4ForrTunggstenargonnarcweldiinganndshiieldinngmettalarrcwelldingoftuube,66Gwelldingposittion((thettubeiisfixxedinn45o..)willlbetesteed;3.5ForrFCAWW,thee3G((vertiicalwweldinng)weeldinggposiitionwillbeteested;;3.6Theeweldder’squaalificcationnshalllbecarriiedouutaftterthhewelldingproceessquualifiicatioonisapprooved.4.ApprrovalCriteeriaAfterttheviisualinspeectionnoneexaminnationntesttpiecceisaccepptablee,ismustbedeetecteedbyradioograpph.Theteestpiiecettobedetecctedsshallbe1552mm((6in)atleeast.Fortuubes,thewweldinngcirrcumfeerenceeshalllbedeteccted.RadiographhicdeetectiionshhallmmeettthereequireementspeciifiedinASSMEIXXQW-1191.2..2,thhatiss:4.1Lineeardeefect::Anytyypeoffcraccksorrpoorrpeneetratiionanndlacckoffusioon;4.l.2EExtenddingllengthhofsslagiinclussioniisoveer:a.Whenthetthicknness≤9.6mmm(3/88in),withalenngthoof3.22mm(11/8in))b.Wheentheethiccknesss≥9.6～57mm(3/8～～21/44in),thellengthhofsslagiis1/33t。Thetottalacccumullativeelenggthofflineearsllaggaangssshallnotbbeoveer1teveryy12t(thiccknesssofttestppiece))unleessthhedisstanceeofccontinnuousdefecctisover6L(LLmeannstheelenggthoffthelongeestdeefectinsllaggaangs)..4.2RouunddeefectMaximuumalllowabllesizzeis20%tor3..2mm((1/8inn),thhesmaalleronesshallbechhosen;;Forbaasemeetalwwithiitsthhickneessleessthhan3..2mm((1/8inn),thhebigggestaccepptableerounndcraackssshallnotbbeoveer12;;ifiitisshortterthhan1552mm,theccrackssshalllbereduccedinnporttionaaccorddinglyy;Forthhewelldswiithittsthiicknesssofbasemetall≥3.2mmm(1/88in),theddiagraaminAppenndixIIshowwstheebigggestaaccepttablerounddcraccksdiiscoveeredbbydettectioon.Iftheecracckislessthan0.8mmm(1/332in),,itccanbeenegllectedd.AppendiixIIIndicaationofRooundDDefectts(seeQWW-192..2)TypicalallowableTypicalallowablenumberandsizewiththelengthofweld(152mm),thickness1/4in(6mm)~1/2in(13mm)Typicalallowablenumberandsizewiththelengthofweld(152mm),thickness1/8in(3.2mm)~1/4in(6mm)TypicalTypicalallowablenumberandsizewiththelengthofweld6in(152mm),thicknessabove1inTypicalallowablenumberandsizewiththelengthofweld6in(152mm),thickness1/2in(13mm)~1in(25mm)AppendiixIIProceessDaatafoorWellder’sExaaminattionWeldinggproccessSAWSAWDDate:WPSNo..Testpieceeandjointt77002505050o+5o0～31～3152GPositioon2GpreheattingPreheattingTTem.Inter-ppassTTem.Gas（GTAAW）Shieldiinggaas%Flowraatel/minBackshhieldiinggaasCurrenttcharracterrRReverseBasemmetalCurrenttDCPolarittyP--NO.andGroupNNo.andTungsteenpollesizzemmMaterrialandTubeddia.（mm）WeldinggtechhniqueeFillinggmetaalWeldinggcourrseLongituudinall,horrizonttalswwingGradeCleaninngbefforewweldinngBrandDiameteerWeldinggdataapassfilllermmetalccurrenntvolttagesppeeddiiameteer(mmm)Remark::WeldinggproccessSSMAWDDate:WPSNo..Testpieceeandjointt22002505050o+5o0～31～3152GPositioon2GpreheattingPreheattingTTem.IIndoorrTempperatuureInter-ppassTTem.250℃MAXXGas（GTAAW）Shieldiinggaas%Flowraatel/minBackshhieldiinggaasCurrenttcharracterrRReverseBasemmetalCurrenttDCPolarittyP--NO.andGroupNNo.andTungsteenpollesizzemmMaterrialAA573AndA5573Tubeddia.（mm）WeldinggtechhniqueeFillinggmetaalWeldinggcourrseLongituudinall,horizonntalsswingHorrizonttalGradeCleaninngbefforeWeldinggGrinndingBrandE7016Diameteerφ3.2；φ44.0Weldinggdataapassfilllermmetalccurrenntvolttagesppeeddiiameteer(mmm)1φ33.280-120022-265～10othersφ4130-177022-268～～18Remark::WeldinggproccessSSMAWDDate:WPSNo..Testpieceeandjointt25025020011560o±5o0～20～33GPositioon3GpreheattingPreheattingTTem.IndoortempeeraturreInter-ppassTTem.250℃MaaxGas（GTAAW）Shieldiinggaas%Flowraatel/minBackshhieldiinggaasCurrenttcharracterrRReverseBasemmetalCurrenttDCPolarittyP--NO.andGroupNNo.andTungsteenpollesizzemmMaterrialA573andA573Tubeddia.（mm）WeldinggtechhniqueeFillinggmetaalWeldinggcourrseLongituudinall,horrizonttalswwingHorizonntalGradeCleaninngbefforewweldinngGrindinngBrandE7016Diameteerφ3.2；φ44.0Weldinggdataapassfilllermmetalccurrenntvolttagesppeeddiiameteer(mmm)1φ33.280-120022-265～8othersφ4130-177022-266～～12Remark::onnesiddeweldinggdoublesideformaationWeldinggproccessSSMAWDDate:WPSNo..Testpieceeandjointt25025020011560o±5o0～20～34GPositioon4GpreheattingPreheattingTTem.IndoortempeeraturreInter-ppassTTem.250℃MaaxGas（GTAAW）Shieldiinggaas%Flowraatel/minBackshhieldiinggaasCurrenttcharracterrRReverseBasemmetalCurrenttDCPolarittyP--NO.andGroupNNo.andTungsteenpollesizzemmMaterrialA573andA573Tubeddia.（mm）WeldinggtechhniqueeFillinggmetaalSMAWWeldinggcourrseLongituudinall,horrizonttalswwingHorizonntalGradeCleaninngbefforewweldinngGrindinngBrandE7016Diameteerφ3.2；φ44.0Weldinggdataapassfilllermmetalccurrenntvolttagesppeeddiiameteer(mmm)1φ33.280-120022-265～8othersφ4130-177022-266～～12Remark::onnesiddeweldinggdoublesideformaationWeldinggproccessGTAW+GTAW+SMAWDDate:WPSNo..Testpieceeandjointt2”2”1251255.55.560o±5o0～12～36GPositioon6GpreheattingPreheattingTTem.Inter-ppassTTem.Gas（GTAAW）Shieldiinggaas%Flowraatel/minBackshhieldiinggaasCurrenttcharracterrRReverse,positiveforGATWBasemmetalCurrenttDCPolarittyP--NO.andGroupNNo.andTungsteenpollesizzemmMaterrialandTubeddia.（mm）WeldinggtechhniqueeFillinggmetaalGATWWeldinggcourrseSMAWLongituudinall,horrizonttalswwingGradeCleaninngbefforewweldinngBrandDiameteerWeldinggdataa