Tension Control Method For A Rolling Mill

Control of Strip Tension in a Rolling Mill Based on ...

Control of Strip Tension in a Rolling Mill Based on Loopers and Impedance Control ... is developed using Hamilton's principle and the Galerkin weighted residua l method. Several ... principle, Steel industry, Tandem rolling mill, Looper control, Strip te nsion control. 1. INTRODUCTION In the metals industry, tandem hot strip rolling mills are ...

US4507946A - Method and system for controlling an ...

In a method and a system for controlling an interstand tension in a continuous rolling mill having a looper provided between a pair of successive rolling stands and driven by a looper drive motor, a correction to the speed target value for the looper drive motor is determined in accordance with the deviation of a detected looper operating angle from an angle target value, and the looper drive ...

Technical Info. (Rolling Mill – Flat Products) | Steel ...

New Rolling Method of Reversing Cold Rolling. A reversing cold rolling mill has been suffering from such drawbacks as unrolled portions necessarily produced in head and tail ends reduce yield, and time consuming works including removing of coils, threading of the strip and holding of the strip with the tension reel, which result in decreasing productivity.

Robust Tension Control of Strip for 5-Stand Tandem Cold Mills

Tandem cold rolling process is a nonlinear complex system with external and internal uncertainties and significant disturbances. The improvement in the quality of the final output depends on the control strategy of centerline thickness and interstand tension. This paper focuses on interstand tension control problem in 5-stand tandem cold rolling mills.

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 feedback to provide appropriate control …

THE MECHANICS OF TENSION CONTROL - Converter …

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.

Tandem Cold Mill | Primetals Technologies

Cold Rolling; Tandem Cold Mill; ... and multi-variable auto-adaptive control. The Primetals Technologies automatic gauge and tension control satisfy even the most challenging demands, such as those for flying gauge changes. ... and instrumentation, the Off-Gauge Optimizer features the smart implementation of the control algorithm of a tandem ...

US3798941A - Rolling mill gauge control method and ...

For the provision of automatic gauge control for the on line control of the delivery gauge of a workpiece passing through at least one roll stand of a tandem rolling mill, it is desired to ...

tension control method for a rolling mill

tension control method for a rolling mill. Home » tension control method for a rolling mill. Back to Previous Page; Chapter 3 - Rolling of metals. Suranaree University of Technology Jan-Mar 2007 Typical arrangement of rollers for rolling mills Two-high mill, pullover Two-high mill, reversing.

Advanced Control for Hot Rolling Mills | SpringerLink

Summary. Hot strip rolling mills are characterised by a process which has many interactions, is distributed with dominant transport delays and has a lack of …

Simulating a Multi-Stage Rolling Mill Process, Part 1 ...

Part 2: Tension Modeling and Simulation In this particular webinar you will learn how to use MathWorks products to model the looper-strip interaction for tension control. 17:08 Part 3: Tension Control In this webinar, you will learn how to design PID controllers for managing tension in a multistage rolling mill process.

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).

Improvement of Accuracy for Gauge and Elongation Control ...

Improvement of Accuracy for Gauge and Elongation Control by Dynamic Process Control Simulator Toshiaki UENO*1 Kenji SORAO*2 ... Tension control simulator Elongation control simulator ... mill set-up method, the optimum rolling load for the AEC of an in-

news › 2017-02-17 Danieli cold rolling mill and tension ...

The cold rolling mill produces 120,000 tpy of aluminium coils, coming from two casting machines, with a thickness of 10 to 6 mm and which are rolled down to a minimum thickness of 0.15 mm at a max speed of 1200 m/min., with a max strip width of 2.1 meters.

Rolling Mill History - Steel Machinery | American Steel

Rolling mills are not a standard machine tool, nor are they built for stock. They are designed and built-to-order to specifically accomplish an end product or process. At one point during the industrial revolution in America, the United States led the world in hot and cold rolling, plate mills, slabbing mills and blooming mills.

MILL CONTROL SYSTEM AND METHOD FOR CONTROL OF …

MILL CONTROL SYSTEM AND METHOD FOR CONTROL OF METAL STRIP ROLLING 8-4-2015 Marwan Simaan University of Central Florida ... Mill control system and method for metal strip rolling con­ ... Janabi-Sharifi, F., "A neuro-fuzzy system for looper tension control in rolling mills", Control Engineering Practice, 13, 1-13, 2005. ...

Rolling mill looper control system - Westinghouse Electric ...

Dec 29, 1981· The invention relates in general to interstand tension control apparatus for a rolling mill, and more particularly to looper control apparatus in a tandem or continuous hot strip rolling mill. The looper is a mechanism installed between any two stands, in a tandem mill installation.

Tension control method for a rolling mill - , Ltd.

Jul 31, 1979· A tension control method for a rolling mill according to claim 3, characterized in that a speed correction quantity of a looper motor at the time when the tension control method with the looper is to be changed-over to the looperless tension control method is held, whereby said looperless tension control method is changed-over to.

tension controlled load mills - legendhotel.in

tension control method for a rolling mill. tension control method for a rolling mill Interstand tension control for tandem cold rolling mills: US3531961 *Method and ... Looper-Tension Control for Hot Strip Finishing Mills …

Rolling Mill Control - Russula

Tension and loop control reduces the material stress along the mill,to diminish dimensional and metallurgical defects. Russula has developed and improved this control module over the years, ensuring the right response in all situations.

Simulating a Multi-Stage Rolling Mill Process, Part 3 ...

From the series: Simulating a Multi-Stage Rolling Mill Process Alec Stothert, MathWorks This webinar is the third in a three-part series that highlights the use of MathWorks products for modeling and control of a multistage rolling mill process.

FUZZY TENSION CONTROL SCHEME FOR ROUGHING AND …

1 FUZZY TENSION CONTROL SCHEME FOR ROUGHING AND INTERMEDIATE ROLLING MILLS GUOMIN LI1 Department of Mechanical, Aerospace & Industrial Engineering,

New Rolling Method Of Reversing Cold Rolling Mill

NEW ROLLING METHOD OF REVERSING COLD ROLLING MILL Authors Name and Affiliations ... Outline of reversing cold rolling mill and rolling method As illustrated in Figure 1, a reversing cold rolling ... in the mill, and tension between the mill and each reel is established. After that, rolling …

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

Looper and tension control in hot rolling mills: A survey ...

Looper and tension control in hot rolling mills: ... S. Nishino, M. KonishiAdaptive and robust control method with estimation of rolling characteristics for looper angle control at hot strip mill. ... Observer-based multivariable tension control of aluminum hot rolling mills, in: Proceedings of the 1996 of the 35th Conference on Decision and ...

60 YEARS OF ROLLING MILL TECHNOLOGY By Ford B. Cauffiel

including hydraulic screwdowns, hydraulic roll bend, and tension control. This book does not focus on these specific rolling mill manufacturers and their various methods of manufacturing and patentability.

Understanding Rolling Process in Long Product Rolling Mill ...

A long product rolling mill comprised of equipment for reheating, rolling and cooling. The primary objectives of the rolling stage are to reduce the cross section of the incoming stock and to produce the planned section profile, mechanical properties and microstructure of the product.

Automatic Tension Control in the Continuous ... - SpringerLink

The method divides the rolling cycle into four stages, as proposed in , and combines tension control by varying the motor speed of the first and/or last stands of the train in rolling on one or two stands and indirect tension control by the difference of static currents (torques) in three-stand rolling.

Simulating a Multi-Stage Rolling Mill Process, Part 3 ...

Simulating a Multi-Stage Rolling Mill Process, Part 3: Tension Control. From the series: Simulating a Multi-Stage Rolling Mill Process. Alec Stothert, MathWorks. This webinar is the third in a three-part series that highlights the use of MathWorks products for modeling and control of a multistage rolling mill process. In this webinar, you will ...

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.