总第328期2023年第4期HEBEIMETALLUＲGYTotalNo．3282023，Number42180mm酸轧机组带钢表面水印形成原因及控制校军立(河钢股份有限公司运营管理部，河北石家庄050023)摘要:随着河钢集团邯钢公司产品转型升级，带钢表面质量要求越来越高，而轧后带钢表面水印则成为产线经济效益提升的制约。本文从热轧原料、轧辊表面质量、辊缝润滑、乳化液浓度、轧制策略、压下分配等工艺方面，系统地分析了邯钢2180mm酸轧机组带钢表面水印的形成原因，认为水印缺陷主要由带钢表面粗糙度均匀性太差、轧辊粗糙度在带钢表面不均匀复制所致。通过降低轧辊表面粗糙度，提升轧辊粗糙度ＲPC，降低F5机架压下率，提升末机架乳化液浓度，加强轧辊喷嘴检查，提高原料表面质量等措施，轧后带钢表面水印缺陷得到有效控制，为后序生产汽车外板创造了基础条件。关键词:酸轧;水印;不均匀润滑;乳化液;粗糙度;压下量中图分类号:TG335．5文献标志码:B文章编号:1006－5008(2023)04－0053－04doi:10．13630/j．cnki．13－1172．2023．0412STＲIPSUＲFACEWATEＲMAＲKFOＲMATIONCAUSEANDCONTＲOLOF2180mmACIDＲOLLINGMILLUNITXiaoJunli(OperationManagementDepartmentofHBISCo．，Ltd．，Shijiazhuang050023，Hebei)Abstract:WiththeproducttransformationandupgradingofHBISGroupHansteelCompany，thesurfacequalityrequirementsofstriparegettinghigherandhigher，andthesurfacewatermarkofstripafterrollinghasbecomeaconstraintfortheimprovementofeconomicbenefitsofproductionlines．Inthispaper，theformationreasonsofstripsurfacewatermarkinHansteel2180mmacidrollingmillaresystematicallyanalyzedfromtheaspectsofhotrollingrawmaterials，rollsurfacequality，rolljointlubrication，emulsionconcentration，rollingstrategyandpresseddistribution，anditisbelievedthatthewatermarkdefectsaremainlycausedbythepooruniformityofstripsurfaceroughnessandunevenreplicationofrollroughnessonthestripsurface．Byreducingthesurfaceroughnessoftheroll，improvingtheroughnessＲPCoftheroll，reducingthedepressionrateoftheF5frame，increasingtheconcentrationoftheemulsionoftheendframe，strengtheningtheinspectionoftherollnozzle，andimprovingthesurfacequalityofrawmaterials，thewatermarkdefectsofthestripsurfaceafterrollingareeffectivelycontrolled，whichcrea...
