Multi-factor coupling system characteristic of the dynamic roll gap in the high-speed rolling mill during the unsteady lubrication process

Authors

Qiaoyi Wang, General Research Institute for Non Ferrous Metals,Hangzhou Dianzi University
Zhengyi Jiang, University of WollongongFollow
Jingwei Zhao, University of WollongongFollow
Min Fang, Hangzhou Dianzi University

RIS ID

81133

Publication Details

Wang, Q., Jiang, Z., Zhao, J. & Fang, M. (2013). Multi-factor coupling system characteristic of the dynamic roll gap in the high-speed rolling mill during the unsteady lubrication process. Tribology International, 67 174-181.

Abstract

In the present work, a multi-factor coupling dynamic model of a rolling mill system for a dynamic roll gap during an unsteady lubrication process was developed on the basis of the rolling theory, lubrication and the friction theory, and the mechanical vibration theory. The multi-factor coupling model of interfacial film binding was coupled with the rolling force model, dynamic roll gap interface friction model and work roll movement model. The corresponding distributions of friction and pressure at varying surface roughness and times were systematically analyzed during the unsteady mixed lubrication process. The effects of the main processing parameters on the critical speed and amplitude for self-excited vertical vibration were investigated.