轻型焊接H 型钢生产工艺及其质量保证措施

39420044IRONANDSTEELVol.39,No.4April2004H(,100081)3H;H;H,HTG161APRODUCTIONPROCESSESANDKEYTECHNOLOGIESFORQUALITYGUARANTEEOFLIGHTGAUGEWELDEDH-SECTIONSTEELMENGXiancheng,ZHOUHemin,FENGGuanghong(MetallurgicalTechnologyInstituteofCISRI,Beijing100081)ABSTRACTThreetypesofH2sectionsteelincludinghot2rolled,non2continuoussubmergedarcweldedandcontinuousHFweldedarebrieflycomparedintheirproductionscale,investmentcost,productmix,productvarieties,productfeatureandapplication1TheproductionprocessesfeaturesofHFweldedlightgaugeH2sectionsteelareintroducedwithproductstandards,productfeatures,productmix,qualityofweldsandlayoutofproductionline1Thekeytechnologiesofqualityguar2anteeofHFweldedlightgaugeH2sectionsteelaremainlydiscussedintermsofqualityofrawma2terials,correctforming,weldingcontrol,coolingofwelds,levelingandcuttingandqualityinspec2tionofweldstopromotethedevelopmentandapplicationoftheprocesses1KEYWORDSlightgaugeH2sectionsteel,processofHFwelding,keytechnologiesofqualityguarantee12002H100t,62114%;,H,H,,,,H,H[1]6mm(213mm)HTH:2003208215:,,mengxiancheng@1261com,H2211H21111HH,H10000,,;H,,,,H2,,:,,H211123HHH,1H10050213ö3124002006ö8,,,,H,212H13HTable1ComparisonofthreetypesofH2sectionsteelHHHt1t3t1015031ömm1001005ö880030013ö24,3002006ö10120060020ö40,10050213ö3124002006ö890030016ö30,,,21211HJGöT1372001HYB33011992H;,:JISG3353(1990)HASTMA769öA769M199421212(1)100400mm;50200mm;213610mm;312910mm;412m(2)JGöT1372001H22HTable2DimensionsandtoleranceofHFweldedlightgaugeH2sectionsteelmmHB$B200B200SeH200H200LcH300H300115115Bö1002210510310+30L0120%L0110%(3)H:(4),,:H;H;,21213H,,,H3,13H31131111H,:GB9121989GB32741988534:H1HFig11LayoutofHFweldedlightgaugeH2sectionsteelline1;2;3;4;5;6;7;89;10;11;12;13;14;15GBöT35241992GBöT81641993;:(1),Q235(GB7001998);(2),Q345(GBöT15911994);(3),B400RNQB490RNQ(QöBQBB490RNQWGJ510C2(WJX(RJ)102001)31112(1),,,015mm,012mm,(2),,113(2),,312,31331311H,,;,331312H,2Fig12Rollingofwebedge3HFig13PrincipleofHFwelding,[2],,,,,(4),,,,H,,63394Fig14AutomatictemperaturecontrolsystemofHFwelding,,,,,,+314,,H,,315H,;316H,,,,,,,4H,,H,1FENGDong,WANGYijun1TheApplicationofHFWeldedLightGaugeH2sectionSteelinConstructionEngi2neering1ConstructionStructures,2001,31(2):17191(,1H1,2001,31(2):17191)2HUANGYi1AutomaticControlSystemofWeldingSeamTemperatureonHFWeldedPipe1WeldedPipeandTube,2002,25(6):49521(11,2002,25(6):49521)(20)1GUOShangxing,DONGYuanchi1DephosphorizationandRephosphorizationofLiquidSteelbyLime2basedFluxes1IRONANDSTEEL,2000,35(3):19211(,11,2000,35(3):19211)2WANGQingxiang,HEHuanyu1TheoreticalAnalysisonRaisingEfficiencyofDephosphorizationReactionBe2tweenHotMetalandMoltenSlag1ResearchonIronandSteel,2001,(5):21231(,11,2001,(5):21231)3ZHANGJian1TheoryandPracticeofRefining1Beijing:TheMetallurgicalIndustryPress,19931(11:,19931)4JIANGGuochang1CleanSteelandRefining1Shanghai:ShanghaiScienceandTechnologyPress,19941(11:,19941)734:H