富氩CO2自动连续焊在大客车顶蒙皮焊接上的应用

3MAG(MetalActiveGasArcWelding)CO2(,213002):,,CO2,:;;;;CO2Abstract:Thisarticlecontainsthebriefintroductionabouttheframecharacteristicsandtheprocessclaimsofthecoachsroofassembly1Analyzingtheweldingdifficulty,theauthordecidestoadoptanewweldingprocess,thatis,theautomaticallycontinuousMAGweldingusedinroofskinsandtheresistancespotweldingusedbetweenroofskinsandroofframe.Theactivegascontainstherichargonandtherestcarbondioxide.Intheend,thedesiredappearanceandsealingperformancearereached.Keywords:Coach;Roofassembly;Continuouswelding;Sealingperformance;MAGwelding:TG44113:B:100623331(2004)01200262031,Q235ACO2;Q235A(CORTENSECC2P),,,,,1,:,,,,;,,,;1m2mm,;QöCK.J01461998,,,70%,20%,CO2,,+2mm,+1mm,,,,12;22;32;4212,11m,,,,,,MAG,:(1),,261BUSTECHNOLOGYANDRESEARCHVol126No112004©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.(2),,(3)443,4,,(4),,,,(5),(6),,(7),(8),,3,:(1),,(2),,(3),:10mm,100mm;3000N;12kA;12(4),,,,,(5),,,,:ER4921,810mm;I=140150A;U=2025V;v=0.80.9mömin;2530Lömin(60%Ar+40%CO2)(6),(7)KLG250(8),(9)4MAG411(1)(),,;,,,1mm(2),,,,,,(R),R,0.5V,,,,I=160A,0100580.5V,,(3)(),,,,(4),,,,(0.5mm),(5),,(6),Ar+CO236kgföcm;6kgföcm,,,Ar,(7),,,,,,,1:CO227©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.2530Lömin,,,:(,,)412(1),(2),12;22;32MAG2(2),,,0.8,,,810mm(3),,,,,;,,,,,(4)Cr2Zr,,0.8+0.15mm(5)1.01.2,,0.8,,,413(1)National,,,,0.8()(2)();,,;,,,,,,(3),,,,(380V)414(1),,,,,,,,,;,,,UI:U=I4ö100+16U=I5ö100+14(2)23m+23m,2V,(3),415(1),,,,,(2),(3),(4),(5),:2003211218,()???:023-626530442826©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.