SWRH82B盘条酸洗黑膜产生原因及解决措施

395201310Vol.39No.5MetalProductsOctober2013doi10．3969/j．issn．1003－4226．2013．05．004SWＲH82B111200SWＲH82B。21。900℃570℃。2H2SO490～120g/LFeSO4140g/L40～50℃25～35min。。SWＲH82BTG178AppearingcauseandcountermeasuresofSWＲH82BwirerodpicklingblackfilmYANGGui-yuLiaoningTongdaBuildingMaterialsIndustryCo．Ltd．Liaoyang111200ChinaAbstractBlackfilmappearingafterSWＲH82Bwirerodpicklingcauselubricationfailuresteelwirediameterisoutoftolerancefrequently．Analysisfromtwoaspectsofwirerodsurfacescaleandpicklingprocessthecauseandcountermeas-uresaregiven1wirerodscalemicrostructureisabnormal．Todecreasewirerodlayingtemperatureto900℃ensuringcoolingspeedofphasetransitionendavoidingwirerodstopover570℃caneliminatewirerodscaledefect2adop-tingcrossteststooptimizepicklingprocesssulfuricacidmassconcentrationisfrom90to120g/Lferroussulfateisnomorethan140g/Lat40to50℃in25to35min．Byabovecountermeasuresafterwirerodpicklingthesurfaceblackfilmlightenobviouslyphosphatinglubricatingqualityimprovediesconsumptiondecrease．KeywordsSWＲH82Bwirerodsurfacetreatmentpicklingprocessscalemetallographicanalysiscrosstestoptimiza-tioncontrolmeasureSWＲH82B1。M．J．L．Gines22。2。1SWＲH82B1．112．5mmABAB。、、20%HClFe3O420%HClFeO。AB12。12A2Fe3O420%FeO80%。B3Fe3O430%FeO40%FeO+Fe3O430%。2Fe2O3。5SWＲH82BFeOH2SO4H2SO4+FeO→FeSO4+H2OH2SO4H2SO4+Fe→FeSO4+H2↑。FeO。Fe3O4Fe3O4FeOFe3O4Fe3O4。3Fe3O4Fe3O4。1．2Queiroga4。BSWＲH82BFe3O4。Fe3O4FeO。Fe3O4。FeOFeO。5570℃4FeO→Fe3O4+FeFeO。B12．5mmSWＲH82B930～950℃Fe3O4。Cr0．25%～0．30%630℃600℃FeOFe3O4。A900℃6℃/s570℃FeOFe3O4。2SWＲH82B2．1BSWＲH82B。。H2SO4g/L、FeSO4g/L、℃min6－8。H2SO436090120g/LFeSO4370140200g/L405060℃152535min1。1Table1FactorslevelρH2SO4/g·L－1ρFeSO4/g·L－1/℃/min16070401529014050253120200603543L934。1922。2．21FeSO42H2SO4FeSO43。H2SO490～120g/LFeSO4140g/L40～50℃25～35min。。·31·392Table2TestprogramandresultsρH2SO4/g·L－1ρFeSO4/g·L－1/℃/min16070602520%329070401520%2312070503510%1460140501550%5590140603510%66120140402515%4760200403525%7890200502520%89120200601530%93SWＲH82BFeOFe3O4。FeOFe3O4。。H2SO490～120g/LFeSO4140g/L40～50℃25～35min。Ｒeferences1．J．2013234－36．GUODa-yongＲENYu-huiWANGBing-xietal．EffectoffinishrollingandwirerodlayingtemperatureonsurfaceredrustofwirerodforweldingwiresteelJ．MetalProducts2013234－36．2GinesMJLBenitezGJPerezTetal．Studyofthepicklabilityof1．8mmhot-rolledsteelstripinhydrochlo-ricacidJ．LatinAmericanAppliedＲesearch200232281－288．3．J．2005572－74．HUANGXian-qiuLUYingYANGDa-keetal．Sur-faceblackspotdefectanalysisofcoldrollingpicklingsteelplateJ．IronandSteel2005572－74．4ＲeinaldoHeitorBatistaQueilogaＲicardoJoseMacedodosSantosDagobertoBrandaoSantos．Theinfluenceofcoolingconditionsofsteelwirerodonscaleformationanditsap-plicationonmechanicaldescalingJ．WireJournalInter-national19951056－63．5．J．2010436－40．XIAOXin-xingLIUJun-liang．MicroscopicanalysisofhotplatescalestructureJ．MetallurgicalAnalysis2010436－40．6．J．2011633－36．ZHANGTaoCHENXiao-juan．SurfacetreatmentprocessandequipmentofspecialsteelwirerodJ．MetalProd-ucts2011633－36．7．J．2011628－30．HEXiao-yu．Inquireintohighcarbonsteelwirerodsur-facecleaningprocessJ．MetalProducts2011628－30．8．—J．2010336－38．FANGYi-pingLINDe-jun．Determiningofsurfacetreat-mentprocessparametersofsteelwireheattreatmentandsurfacetreatmentlineJ．MetalProducts2010336－38．2013－05－211969。·41·