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Experimental validation and numerical simulation of flexible and microscale roll gap control technology

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Abstract

This paper proposes a new flexible and microscale roll gap control technology to obtain a stronger strip flatness control ability. According to the principle of microscale roll gap control technology, an electromagnetic control rolling mill with the function of roll profile control and large diameter ratio rolling is designed and built. To analyze the flatness control ability, a comprehensive finite element model (FEM) is established, and an indentation experiment and a rolling experiment are carried out. The simulation results show that under different rolling forces and tensions, the average quadratic crown control ability is more than 40 μm, and the average quartic crown control ability is more than − 3 μm. The control ability increment of the quadratic crown is greater than that of the quartic crown. In the indentation experiment, a stable roll profile can be achieved by PID control after reaching the target roll profile. Increasing the regulation amount can change the strip crown from positive to negative. Even under high rolling force conditions, microscale roll gap control technology can also realize a strip crown adjustment of 19.5 to 0.5 μm. Moreover, this technology can adjust the strip shape from edge waves to non-waves and middle waves in the rolling experiment. In this paper, the feasibility of using this technology to adjust the roll gap shape has been verified, and we demonstrate that the roll gap control goal of uniform transverse size distribution can be achieved.

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Funding

This project is supported by the National Natural Science Foundation of China (Grant No. U1560206) and National Natural Science Foundation of China (Grant No. 51374184).

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Authors and Affiliations

  1. National Engineering Research Center for Equipment and Technology of Cold Strip Rolling, Yanshan University, Qinhuangdao, 066004, Hebei, People’s Republic of China

    Tingsong Yang, Qifa Chen, Yang Hai & Fengshan Du

  2. College of Mechanical Engineering, Yanshan University, Qinhuangdao, 066004, Hebei, People’s Republic of China

    Tingsong Yang, Qifa Chen, Yang Hai & Fengshan Du

  3. College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen, 518060, Guangzhou, People’s Republic of China

    Yanfeng Feng

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  1. Tingsong Yang
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  2. Qifa Chen
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  3. Yanfeng Feng
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  4. Yang Hai
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  5. Fengshan Du
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Contributions

Tingsong Yang: conceptualization, methodology, writing—reviewing and editing, formal analysis. Qifa Chen: formal analysis, investigation, writing. Yanfeng Feng: formal analysis, investigation. Yang Hai: conceptualization, methodology. Fengshan Du: funding acquisition.

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Correspondence to Fengshan Du.

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Yang, T., Chen, Q., Feng, Y. et al. Experimental validation and numerical simulation of flexible and microscale roll gap control technology. Int J Adv Manuf Technol 120, 5741–5754 (2022). https://doi.org/10.1007/s00170-022-09000-x

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  • DOI: https://doi.org/10.1007/s00170-022-09000-x

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