Transactions of Materials and Heat Treatment

Title：Optimization design on backup roll contour for cold tandem rolling mill

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ClassificationCode：TG335

year,vol(issue):pagenumber：2020,45(11):150-155

Abstract：

Combining with the influence function method and the strip element variation method, the simulation tool of roll system and strip deformation in the rolling process was developed, and the end contour of backup roll was optimized and designed as the power function curve based on the above tool. Then, the influences of three main parameters for the power function curve on the strip edge thinning amount and the front tension difference were investigated, and the best parameter combination of power function curve was determined as follows: xL=250 mm, ΔR=4.0 mm, α=0.2. Furthermore, in order to confirm the actual use effect of the backup roll, it was placed in the fourth-stand of the cold tandem rolling mill five-stands, and the actual production data were used for computational simulation and experimental verification. The results show that compared with the flat end backup roll, using the backup roll with curved end cannot only improve the thickness difference and the plate shape, but also greatly reduce the bending force of work roll and facilitate the stability of rolling mill operation.

Funds：

国家自然科学基金青年基金资助项目（51805345）；江苏省自然科学基金青年基金项目（BK20170373）；江苏高校“青蓝工程”资助项目（2019）；苏州市重点实验室资助项目（SZS201815）

季业益(1980-)，男，硕士，副教授 E-mail：00314@siit.edu.cn

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