Coupled Vibration Model and Influencing Factors Analysis of Tandem Cold Rolling Mill

doi:10.3901/JME.2021.12.208

Abstract

Abstract: The 4 DOF mechanical hydraulic coupling model based on the analysis of the coupling effect of rolling mill hydraulic and mechanical systems is established. The rolling force increment model is derived by considering the influence of exit and entry tension, reduction, and friction coefficient on rolling force in vibration process. Based on the influence of positive and negative damping on the vibration stability of rolling mill, the vibration coefficient and the discrimination model of rolling mill stability are proposed. Taking typical products as the research object, the effects of rolling speed, reduction, average tension, emulsion flow, emulsion concentration and emulsion temperature on the vibration coefficient are analyzed quantitatively and the calculation software of rolling mill vibration coefficient is compiled, which is applied to five stand tandem cold rolling mill of a factory to verify the effectiveness of the vibration discrimination model.

Key words: mechanical hydraulic coupling, vertical vibration, rolling force, incremental model, vibration coefficient

CLC Number:

TG335

QIAN Cheng, SUN Rongsheng, ZHANG Liuliu, BAI Zhenhua, HUA Changchun. Coupled Vibration Model and Influencing Factors Analysis of Tandem Cold Rolling Mill[J]. Journal of Mechanical Engineering, 2021, 57(12): 208-216.

References

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