TIGMAG组合焊接技术在锅炉压力容器及管道上应用的工艺特点

[1]NurmiS,SundelinJ,RistolainenE,etal.TheeffectofsolderpastecompositiononthereliabilityofSnAgCujoints.MicroelectronicsReliability,2004,44(3):485-494.[2]XuChen,LinYC,LiuXingsheng,etal.Fracturemechan2icsanalysisoftheeffectofsubstrateflexibilityonsolderjointreliability.EngineeringFractureMechanics,2005,72(17):2628-2646.[3]Hwa2TengLee,Heng2ShengLin,Cheng2ShyanLee,etal.ReliabilityofSn2Ag2Sblead2freesolderjoints.MaterialsSci2enceandEngineering,2005,407(1):36-44.(20051108):,1980,,TIG/MAG(150080)TIG/MAG,MAG,,,,:TIG+MAGTECHNOLOGICALCHARACTERISTICOFTIG/MAGCOMPOUNDWELDINGTECHNIQUEBEINGAPPLIEDTOBOILERPRESSUREPIPELINEHarbinboilerlimitedcompanyYangYuelingAbstractThispaperexpatiatesthetechnologicalcharacteristicofTIG/MAGcompoundweldingmethodwhichisap2pliedtoboilerpressurepipelines.ThroughanalygingpulseMAGweldertechnologicalrequirementofalteringarcshapesandpropertiescouldberealizedafteradjustingvarioustechniqueparameters.Theweldqualityisimproved,andeligiblerateisincreased,enterprisescanobtaingreatlyproductiveefficiencyandeconomicprofit.Keywords:TIG+MAGwelding,boilerpresspipeline,welding1CO2/MAGCO2/MAG,,,(1)CO2,,(2),,;,(3)CO2,();,CO2,,CO2/MAG()242006(3)©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(Mn1.8%2.1%),Mn/Si,,,,Mn/Si(Mn1.4%1.85%,Si0.8%1.15%),(MAG),,,MG-51T(ER50-6)11MG251Ts/MPab/MPa(%)Akv/JCO246056032110MAG52060031160Ar+CO2(MAG),75%95%Ar,,,,,,MAG(CO210%20%)(1.2mmMAG,I280A),,(AG2MIG/MAG),CO2+,,3CO2/MAG60mm5mm(TIG)+MAG,,23(1)12CrMoV15CrMoV,T91TIG+MAG(2)TIG,,,,,(3)MAG,320A,,,(4)(350400A)(70A)(126Hz)(14s)(48s)(5),(6),MAG,Ip,Ib;Ip;,,99.8%,CO2/MAG4(1)TIG+MAG,,(2),,(3)CO2/MAG,,,(20060115):,1963,342006(3)©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.