针对以往对带钢边部减薄的研究是以减薄量的分析为主而未涉及减薄宽度、不利于现场控制的问题，以六辊冷轧机组为研究对象，充分结合冷轧过程的设备与工艺特点，提出了一套利用边部减薄区域宽度、平均减薄厚度、中位减薄厚度、最大减薄厚度等4项特征参数来描述边部减薄的新方法，从工作辊压扁系数沿辊身的分布以及带钢内部金属的横向流动两个方面分析了带钢边部减薄的形成机理，建立了相应的轧辊弹性压扁系数混合修正模型。随后，在上述研究的基础上，建立了一套适合于六辊冷轧机组的带钢边部减薄预报模型，给出了相应的轧辊弹性压扁系数加权拟合系数求解方法，为现场对冷轧过程中带钢的边部减薄进行有意识控制奠定了理论基础。

In order to solve the problem that strip edge drop study is mainly based on the analysis of thickness reduction without involving the strip drop area width and it goes against on-site control，the six-high mill unit was taken as the research object，fully combined with the cold rolling equipment and characteristics and a new method of describing the edge drop was proposed by using the four characteristic parameters such as the edge drop area width，the average drop thickness，the central drop thickness and the maximum drop thickness. After analyzing formation mechanism of strip edge drop through the roll flattening coefficient distribution along the work roll and the transverse flow of the internal metal of the strip，a corresponding mixed correction model of elastic flattening coefficient was established. Then，based on the above research，a set of strip edge drop forecast model for six-high mill was established，and the corresponding method of calculating the weighted elastic flattening coefficient was obtained，which laid theoretical foundation for the control of strip edge drop during the cold rolling.