高强板瓦楞浪形成机理研究  

Research on Formation Mechanism of Corrugated Wave of High Strength Steel Plate

作　　者：黄贞益[1,2] 韩争攀 吴俊平 王道远 李长宏[1] 韩鑫[1] 

机构地区：[1]安徽工业大学冶金工程学院,安徽马鞍山243002 [2]哈尔滨工程大学材料科学与化学工程学院,黑龙江哈尔滨150000 [3]南京钢铁公司中厚板卷厂,江苏南京210035

出　　处：《热加工工艺》2015年第21期102-106,共5页Hot Working Technology

基　　金：江苏省科技成果转化专项资金项目(BA2012018);国家自然科学基金资助项目(51405002);中国博士后科学基金资助项目(2014M551796)

摘　　要：以往分析板形问题只是假设横向流动不均而忽视厚度方向金属流动不均。以板形控制技术及理论为依据,从板带厚度方向金属流动不均入手,对高强板瓦楞浪形成机理进行了研究。根据某钢铁公司3500 mm炉卷轧机生产X80等高强厚板时出现的瓦楞浪,对假设进行了验证。模拟结果和现场实测板形高度吻合,证明辊速周期性变化会导致高强板出现瓦楞浪。通过多组轧制模拟,得出了X80钢最后三道次轧制时辊速变化与板形及板厚的定量化关系。结果对实际生产消除瓦楞浪具有一定的指导意义。In the past, sheet shape problem was only analyzed by assuming nonuniform transverse flow, but ignoring the uneven metal flow in thickness direction. Taking plate shape control technology and theory as basis, the formation mechanism of high strength corrugated wave was researched from the uneven metal flow in the thickness direction of the plate. According to corrugated wave of X80 high strength heavy plate in iron and steel company 3500mm Steckel mill production, the hypothesis was verified. The sheet shape height of simulation result is accordance with that of field measurement. It is proved that the roller speed periodic change will lead to the corrugated wave of the high strength plate. Through multiple rolling simulation, the quantitative relationship among roll speed change and plate shape and plate thickness was obtained during the last three passes of X80 steel. The results have certain guiding significance for the elimination of corrugated wave in actual production.

关 键 词：高强板 瓦楞浪 形成机理 残余应力 

分 类 号：TG335.5[金属学及工艺—金属压力加工]