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(),,,,,Fe2Al5,Fe2Al5,BriefIntroductionoftheProductionofHotGalvanizedSteelSheetLecture4TheEffectofAdditionalAluminiuminLiquidZinconGalvanizingandtheDevelopmentofHotGavlvanizingTheoryZhuLi(AISCTechnologyCenter)AbstractAlittlealuminiumaddedintheliquidzincmayformprotectiveoxidationfilmandgreatlyreducetheoxidationofZincliquidsurface.TheresultsoftestshowthataluminiumintheliquidZincconcentratesintheplatesurfaceandformFe2Al5ininterme2diatelayerafterplateimmersion.Fe2Al5prompptstheadhesionbetweenplateandliquidZincandimprovethemechnicalpropertyofgalvanizedproducts.Thedevelopprocessofthetheoryisintroduced.KeyWordshotgalvanizingadhesionproperty1114001,:,0.05%,,,95,,0.12%,0.12%0.16%,,D1C0.1%,D1C()78%0.16%,0.8%,0.2%0.3%,,,,,D1C,,FeAlFeAl2FeAl3FeAl3(6.7calö(),CD1,,FeAl3,FeAl3,,,(G),GFG2,,Fe2Al5,0.010.1Lm,(1),,Zn2Fe,Fe2Al5,,,,,,,,CFD1,,,,Fe2Al5,Fe2Al5(2),,:1),2),,Fe2Al53)Fe2Al5,Zn2Fe,4),5),,,Fe2Al5,,,Fe2AlFe2Zn,Fe2Al,,Fe2Al5DM0619995t:DM=1A-Blgt:DMFe2Al5;A,B;t,,,Fe2Al5Fe2Al5,,Fe2Al5,,Fe2Zn,,Fe2Al5,Fe2Al5,,Fe2Al5,,Fe2Zn,Fe2Al2Zn10%14%Al22%25%Fe60%65%Zn,,24%30%Al33%36%Fe34%40%Zn,Fe2(AlZn)50.25%45010s30s120s,Fe(AlZn)5,Fe2Zn,Fe2Al5,,Fe2Al5,Fe2Al5,Fe2Zn,,(3),,,Fe2AlFe2Al5,(),,,Fe2Zn,,,,,,,,Fe2Al5,Fe2Al5,,,Fe2Al5,280,,,,,,16:3ZnCl2+Al23Zn+2AlCl3(123)3NH4Cl+AlCl3AlCl3NH3(400)+HCl,,ZnCl2NH4Cl,,,ZnCl2NH4Cl,,,,,Al2O3,,Al2O315.2%,ZnCl2FeO,,Fe2Zn2Al,,Fe2AlFe2Zn,Fe2Al5,Fe2Al5,,Fe2Al5,,Fe2Zn(),Fe2Al,Fe2Zn,FeZn7Fe2Al5,,()():1999115(43)6,%CaOSiO2MgO2FeOR51.6650.21.4616.7616.74-0.0210.4010.380.0211.8411.800.043.083.00.084(1)1.5min;(2)0.6tö;(3),,0.2tö,;(4)150m3ö;(5)25s;(6)0.35tö;(7),;(8)()():19993302619995
本文标题:热镀锌钢板生产概述第四讲锌液中加铝对镀锌的影响及热镀锌理论的发展
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