连退过程带钢张力横向分布模型及其影响因素  

Model and influence factors of strip transverse tension distribution in CAPL

作　　者：白振华[1,2] 王瑞[1,2] 崔亚亚[1,2] 常金梁[1,2] 兴百宪 段建高[3] 

机构地区：[1]燕山大学国家冷轧板带装备及工艺工程技术研究中心,河北秦皇岛066004 [2]燕山大学亚稳材料制备技术与科学国家重点实验室,河北秦皇岛066004 [3]宝钢不锈钢有限公司冷轧厂,上海200431

出　　处：《钢铁》2015年第4期40-47,共8页Iron and Steel

基　　金：国家科技支撑计划资助项目(2011BAF15B02)

摘　　要：针对以往连退过程中对带钢内部应力横向分布情况无法在线预测,从而对连退过程中的跑偏、瓢曲以及带钢在各工艺段的板形演变无法在线预警、容易造成断带缺陷的问题,充分结合连退机组的设备与工艺特点,在研究了带钢横向温度差、来料板形、炉辊辊型、炉辊水平度与垂直度误差对带钢内部单元变形影响模型的基础上,建立了一套适合于连退过程的带钢内部张力横向分布模型,给出了相应的计算策略,并以宝钢不锈钢有限公司某连退机组为研究对象,定量分析了炉辊原始辊型、来料板形、横向温差以及炉辊水平度与垂直度误差、设定张力等因素对连退过程带钢内部张力横向分布的影响,编制出了相应的"连退机组通板过程带钢内部应力横向分布及板形演变预报软件",并将其应用到生产实践,取得了良好的效果,具有进一步推广应用的价值。In allusion to the case that the on-line prediction of strip transverse tension distribution in CAPL cannot be realized, strip wandering, buckling and shape evolving cannot be warned which may lead to breakage. Taking into account the equipment and technological characteristics of CAPL, the CAPL strip tension distribution model was built and the relevant calculative strategy was given, on the foundation of analyzed the influence of the strip transverse temperature difference, the incoming strip shape, the furnace roll profile and the furnace roll perpendicularity and levelness error to the longitudinal elements deformation. Taking a CAPL of Baosteel Stainless Steel as an example, the influence of original furnace roll profile, incoming strip shape, transverse temperature difference, furnace roll perpendicularity and levelness error and assigned tension to the strip transverse tension distribution are analyzed. The forecast software of strip transverse tension distribution and shape evolving in passing of CAPL are compiled and applied to production and practice, which achieves good results, with further popularization and application value.

关 键 词：连续退火 张力横向分布 炉辊辊型 来料板形 

分 类 号：TG156.2[金属学及工艺—热处理]