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tension control method for a rolling mill

  • PROCESS OF ROLLING MILLS LinkedIn

    Rolling – The important parameters for rolling in the roughing, intermediate, and finishing group of stands in the rolling mill are temperature, percentage of reduction in area, inter-pass time (PDF) Speed Control of Steel Rolling Mill using Neural ,In this paper a fully neural network-based structure have been proposed to control speeds of rolling stands of a steel rolling mill. The structure has property of controlling the motors speed such

  • CONTROL METHOD OF TENSION IN ROLLING MILLS (2)

    1973-10-23· What we claim is 1. In the cold rolling of metal strips in a multi-stand rolling mill, a method of tension control during a size alteration of the strip comprising the steps ofCONTROL METHOD OF TENSION IN ROLLING MILLS (1) ,1973-09-25· In a cold tandem mill of the endless type, means are provided to maintain the strip tension constant while the cross-section of the strip undergoes a change in size, that is, as the thickness, the width or the desired finished thickness of the strip is changed.

  • Minimum Tension in a Merchant Bar Rolling Mill using

    The problem of achieving minimum bar tension in a merchant bar rolling mill without direct tension measurement is considered. A non-linear state-space process model which represents the mill dynamics has been developed, and a control scheme is proposed which incorporates an Extended Kalman Filter for estimation of bar tension, and optimal state Understanding Rolling Process in Long Product Rolling ,Rolling – The important parameters for rolling in the roughing, intermediate, and finishing group of stands in the rolling mill are temperature, percentage of reduction in area, inter-pass time and strain rate.

  • Looper and tension control in hot rolling mills A survey

    One of the major control problems in hot rolling mills are the looper and tension control loops because these have a significant impact on the dimensional quality of a strip and process stability.1. Hot rolling and rolling defects 1.1 Front and back ,tension using feedback control system. Mill spring is a defect in which the rolled sheet is thicker than the required thickness because, the rolls get deflected by high rolling forces.

  • Tension Control Method For A Rolling Mill avsa.eu

    Patent US5103662 Tandem rolling mill tension control 1. A method for controlling interstand strip tension in a metal cold rolling mill having at least two rolling stands, each with at least one pair of opposed workrolls Tension Control Method For A Rolling Mill,A SURVEY OF THE LOOPER-TENSION CONTROL A SURVEY OF THE LOOPER-TENSION CONTROL TECHNOLOGY IN HOT ROLLING MILLS Il Seop Choi∗, Anthony Rossiter∗, Peter Fleming∗ ∗ Automatic Control & Systems Engineering

  • Automatic Tension Control in the Continuous

    It involves combining speed-difference tension control during free rolling and static-current tension control during multi-stand rolling on three stands. A functional block diagram of the system implementing the method is considered. Experimental data obtained on the 2000 mill are presented. The basic advantages of the system that demonstrate its efficiency are indicated.Control of Strip Tension in a Rolling Mill Based on ,Control of Strip Tension in a Rolling Mill Based on Loopers and Impedance Control A. Steinboeck G. Mu hlberger A. Kugi Automation and Control Institute, Vienna University of Tec hnology,

  • Tension Control Method For A Rolling Mill

    Interstand tension control method and apparatus for What is claimed is 1. In a tandem rolling mill consisting of a plurality of rolling stands, an interstand tension control method including the step of computing the interstand tension on the basis of the detected rolling force and rolling torque, and the step of computing the deviation of Basics of Web Tension Control Summary TAPPI,Basics of Web Tension Control Summary Presenter Darrell Whiteside, Sales Channel Manager – Tension Control Maxcess International This presentation is intended to take the mystery out of web tension control. It is intended for operators, designers and engineers who would like a better understanding of their existing process and how they might improve both efficiency and consistency.

  • US4162624A Tension control method for a rolling mill

    Prior art keywords looper tension tension control control method rolling Prior art date 1977-03-31 Legal status (The legal status is an assumption and is not a legal conclusion.The Study of Continuous Rolling Mill Inter-stand Tension ,The inter-stand tension inferential control systems are used to stabilize the rolling motor torque. To stabilize the motor torque the electric drive system with the properties of the rolling motor

  • New Rolling Method R f Reversing Cold Rolling Mill

    Outline of reversing cold rolling mill and rolling method As illustrated in Figure 1, a reversing cold rolling mill is structured mainly of a mill proper, a winding machine (pay-off ree l), an entry winding machine (tension reel) and a delivery-winding machine (tension reel).Enabling Sensing Technologies IEEE Control Systems Society,Tension control systems for rolling mills have been a specific target of development because of their cost and impact on product quality. Traditional tension control systems for steel bars/billets (so-called "long products") involve using loopers between stands to avoid bar tension. Loopers deviate the hot steel trajectory, creating a "buffer" of material between stands to compensate

  • A Flatness Based Approach for the Thickness Control in

    A Flatness Based Approach for the Thickness Control in Rolling Mills Keywords rolling mill, multi-stand mill, thickness con-trol, tension control, flying gauge change, non-linear control, flatness based control. Abstract A multi-stand rolling mill is a highly complex coupled non- linear system. If the operating point is changing in a wider range the non-linearities can no longer be Looper and tension control in hot rolling mills A survey ,Looper and tension control is important in hot strip mills because they affect the strip quality as well as strip threading. Moreover, the most difficult challenge in controller design and control performance arises from the interaction between looper angle and strip tension.

  • THE MECHANICS OF TENSION CONTROL converteraccessory.com

    1 THE MECHANICS OF TENSION CONTROL By Jeff Damour CONVERTER ACCESSORY COPORATION Wind Gap, PA USA Introduction This presentation is a basic tutorial in the mechanics of web tension control.Understanding Rolling Process in Long Product Rolling Mill ,Rolling – The important parameters for rolling in the roughing, intermediate, and finishing group of stands in the rolling mill are temperature, percentage of

  • JPS62187513A Tension control method for tandem rolling

    JPS62187513A Tension control method for tandem rolling mill Google Patents Tension control method for tandem rolling mill Info Publication number JPS62187513A. JPS62187513A JP3043186A JP3043186A JPS62187513A JP S62187513 A JPS62187513 A JP S62187513A JP 3043186 A JP3043186 A JP 3043186A JP 3043186 A JP3043186 A JP 3043186A JP S62187513 A Fuzzy Multiple Stand Tension Control of a Roughing Rolling ,Fuzzy Multiple Stand Tension Control of a Roughing Rolling Mill F control system for a roughing rolling mill. Combined with a novel decoupling strategy, the proposed scheme makes it possible to realize intelligent tension-free control of multiple roughing rolling stands. The results from a virtual rolling test demonstrated the applicability and effectiveness of the proposed technique

  • Optimum strip tension control system for rolling mills

    Optimum strip tension control system for rolling mills Abstract. A system and method for achieving an optimum interstand strip tension providing substantially equal loading of adjacent stands of a tandem rolling mill where such optimum tension is determined by the expression ##EQU1## where A1 and B1 are, respectively, the load ,

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