Control Scheme Using Forward Slip for a Multi-stand Hot Strip Rolling Mill |
| |
Authors: | Email author" target="_blank">Young?Hoon?MoonEmail author I?Seok?Jo Chester?J?Van?Tyne |
| |
Affiliation: | (1) School of Mechanical Engineering/ Engineering Research Center for Net Shape and Die Manufacturing, Pusan National University, 609-735 Pusan, Korea;(2) Department of Metallurgical and Materials Engineering, Colorado School of Mines, 80401 Golden, CO, USA |
| |
Abstract: | Forward slip is an important parameter often used in rolling-speed control models for tandem hot strip rolling mills. In a
hot strip mill, on-line measurement of strip speed is inherently very difficult. Therefore, for the set-up of the finishing
mill, a forward slip model is used to calculate the strip speed from roll circumferential velocity at each mill stand. Due
to its complexity, most previous researches have used semi-empirical methods in determining values for the forward slip. Although
these investigations may be useful in process design and control, they do not have a theoretical basis. In the present study,
a better forward slip model has been developed, which provides for a better set-up and more precise control of the mill. Factors
such as neutral point, friction coefficient, width spread, shape of deformation zone in the roll bite are incorporated into
the model. Implementation of the new forward slip model for the control of a 7-stand hot strip tandem rolling mill shows significant
improvement in roll speed set-up accuracy. |
| |
Keywords: | Finishing Mill Forward Slip Hot Strip Mill Neutral Point Coefficient of Friction |
本文献已被 SpringerLink 等数据库收录! |
|