精轧区热轧带钢表面氧化铁皮缺陷成因与预防

,(,200941):Cr,Cr,2050mm,:;;;:TG335156:A:1003-9996(2002)03-0009-04FormationcausesofsurfacescaleofhotrolledstripinfinishingstandsanditspreventionmeasuresXIAXian-ping,SUNYe-zhong(BaoshanIron&SteelCo1,Ltd1,Shanghai200941,China)Abstract:Thescaledefectisanimportantinfluencefactoronsurfacequalityofhotrolledstrip1Thechemicalcompositionofstripwhereproducedscalewasinspectedbyelectronicprobe1TheformationcausesofscalewereanalyzedbasedontheCrdistribution1Atlast,combiningwiththespecificconditionof2050mmhotrollingmillofBaosteel,thepreventionmeasuresforscaledefectwereputforward1Keywords:hotrolledstrip;scaledefect;formationcauses;preventionmeasures:2001-09-21:(1968-),(),,,1,,,,;,2050mm3,Cr,Cr,Cr,,22050mm,,,,,3,F2F3,,,3112050mmF2F3Ni-Cr,1,920026193Jun12002Vol119No13STEELROLLINGARAPDT,21F2F3CSiMnPSNiCrMo/%21790150019601010101711361810011202ARAPDT/%CSiMnPST1AlNAR010501065010340115013001025010150102501060010065AP0106801105010340135015501020010120103001060010070DT0100301030011001200101201008010250106001003012:Ni-Cr1810%Cr1136%Ni112%MoARAPDT3312Cr,,CrCr,,,13134,11a);b);c);d)01200211,,FeO,Cr;,FeO,SiNiCr,:,Cr,,4411,,1000,,,,,,,,412,,,,,,,,,,,;,,,,,,,,,,5,F1,511,,;,:15,F1F3100%,;615,F1F370%80%,,;16,100%,;F4F7100%,512,,,,F2F3,51211,();(),11193::;;;O5,,,,51212,,,,,,51213,,,,,,51214,F2F3,F2F3,,;,,,,F2F3,,51215,,51216,,,,,51217,51218,,,6(1)(2),;,,,,,(3):;;;;;;;;,!!!2120021