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Title:Control and application of axial movement for conical work roller in continuous rolling based on yield model
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ClassificationCode:TG334
year,vol(issue):pagenumber:2022,47(4):207-212
Abstract:

 In order to improve the regulation accuracy of axial movement for conical work roller in continuous rolling, on the basis of setting up the yield model after rolling between frames, the synchronous calculation process of frames was completed, and the regulation scheme of the axial movement for work roller based on the yield model was established. Then, the model accuracy was verified and tested on site, and the efficiency parameters for edge drop regulation of roller movement were determined. Furthermore, the elastic deformation degree of roller system was calculated by the influence function method, the difference between exit section and elongation was obtained, the yield section after rolling was calculated by the post-rolling yield module, and the iterative process was completed when the residual error was less than 3 μm. The model verification shows that the calculation errors of the sections located in the range of 15-115 mm from the edge drop zone are all within 3 μm, and the maximum error occurs in the range of 0-15 mm from the strip edge. Through the industrial application, the second frame realizes the optimal control efficiency of the edge feature points. During the process of gradually increasing the amount of roller  movement, the efficiency of the first and second frames decreases, while the efficiency of the third frame increases to the highest. When the single point control strategy is selected, the obvious edge effect can be obtained, and the long-term stable operation is realized.

Funds:
四川省科技计划项目(20KPZP0014)
AuthorIntro:
作者简介:于志刚(1983-),男,硕士,高级工程师 E-mail:yuzhigang2021@126.com
Reference:

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