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tension controlled mill
  • Robust Tension Control of Strip for 5-Stand Tandem Cold Mills

    X. Zhang and Q. Zhang, “Robust control of strip tension for tandem cold rolling mill,” in Proceedings of the 30th Chinese Control Conference (CCC '11), pp. 2390–2393, Yantai, China, July 2011. View at: Google Scholar; J. Pittner and M. A. Simaan, Tandem Cold Metal Rolling Mill Control Using Practical Advanced Methods, Springer, London, UK

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  • Tension Controlled Mill In India praxis-klement

    Tension Controlled Mill In India. Acquired strategic stake in Maktel Control amp Systems Indias leading power and control panel manufacturer Successfully established Ultra High Voltage Cable Testing Laboratory a first of its kind in India having a capability to 500 kv

  • tension controlled mill Cantieri Navali del Tevere

    Tension control in a metal rolling mill General Electric ,Oct 22, 1985· A metal rolling mill for reducing the thickness of a metal workpiece passed between a pair of opposed work rolls is controlled to maintain substantially .AIST Mass Flow Control for Intercritical Rolling in ,Mass Flow Control for , interstand strip tension using the

  • Unified gauge-tension control in cold rolling mills: A

    Tension control is one of the most important process parameters in tandem cold mill (TCM). Changing roll velocity stabilizes the interstand tension [3] . Interstand tension should be maintained at

  • The Engineering Design of Rolling Mill A&L Alluminio e Leghe

    A Cold Rolling Mill rolls, in subsequent short passes(due to the relative thick material), coiled strip from a thickness of up to 8 mm (coming from Hot Rolling Mill) down to 0.2 mm; the mill is designed with high rolling force and power capability and efficient and fast coil handling to minimize the waiting time.

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

    Jul 01, 2007· The availability of tension measurements has enabled tension feedback and the reduction of interaction by changing control pairings such that the rotating speed of a mill motor controls strip tension while angular velocity of a looper motor controls looper angle.

  • Minimum Tension in a Merchant Bar Rolling Mill using

    Aug 01, 1990· 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

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  • Basics of Web Tension Control Summary

    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

  • The Mechanics of Tension Control

    Jun 21, 2016· http://www.converteraccessory The Mechanical of Tension Control

  • Converter Accessory Corporation
  • Tension Steel Industries Co., Ltd.

    Tension produces various products which include plates, hot and cold rolled coils, Carbon Steel Pipes, Carbon Steel Rectangular Pipe, API Pipes、Galvanize Pipes、Structures Pipes、Fire control Pipes and Automobiles、Bicycle Pipes. The major products of Tension are API pipes and capacity, the output is 5000 tons per month.

  • The Engineering Design of Rolling Mill A&L Alluminio e Leghe

    A Cold Rolling Mill rolls, in subsequent short passes(due to the relative thick material), coiled strip from a thickness of up to 8 mm (coming from Hot Rolling Mill) down to 0.2 mm; the mill is designed with high rolling force and power capability and efficient and fast coil handling to minimize the waiting time.

  • Tension control in tube and pipe production

    Apr 11, 2005· Traditionally, tension is controlled by the root diameter progression and by adjusting the drive ratio between the fin and breakdown passes or between the fin and the sizing passes. However, viewing tension as a characteristic that links together the breakdown, fin, weld, sizing, and Turk's head passes lets setup personnel and mill operators

  • New tension control at the head of strip in hot strip

    Sep 12, 2008· A new tension control system at the head of strip is developed and applied to the Kwangyang no. 1 hot strip mill of POSCO to reduce the width shrinkage. It is shown through the analysis of the rolling data that the width shrinkage is closely related to the current difference of the main motors.

  • tension control method for a rolling mill Elvema

    Fuzzy Multiple Stand Tension Control of a Roughing . This paper reports a multistand fuzzy tension control system for a roughing rolling mill. Combined with a novel decoupling strategy [3], the proposed scheme makes it possible to separate interstand interactions and realize intelligent tension-free control of multiple roughing rolling stands.

  • Rolling Mill Control Russula

    Cascade Control. Cascade control uses the reduction concept (R-Factor) to calculate the mill cascade speed reference. This parameter, directly related to rolling fundamentals, simplifies the setup and operator control. During production the loop and tension control automatically adjust the R- Factor, ensuring minimum material stress between the

  • tension control system for universal mill

    Tension Control Systems Tekmatic S.A. Tension Control Systems System Configurations Magnetic Particle Brake Ultrasonic Sensor PSDRV Power Supply Reliable and accurate control for all system design layouts Open loop tension control systems provide the least expensive manner to provide a degree of web tension control with the minimal amount of compo-nents.

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  • 1. Hot rolling and rolling defects: 1.1 Front and back

    tension using feedback control system. 1.8 Rolling defects: 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. Elastic deformation of the mill takes place. If we

  • Taper Tension for Rewind Control: Definitions & Processes

    Taper Tension for Rewind Control. Posted by Bryon Williams & filed under Article Library, Technical Papers.. Center winding film or other extensible material comes with inherent difficulties. If you maintain a constant tension on the web, as the diameter of the roll increases, the wraps become tighter.

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  • FUZZY TENSION CONTROL OF THE WIRE ROD ROUGHING

    Tension control plays an important role in assuring product quality and process stability in steel rolling industry. Especially on looper control, there are a lot of applications where latest control theories had been applied, however, looperless interstand tension control of roughing mill remains a

  • Rolling of Steel in a Modern Long Product Rolling Mill

    Jun 19, 2017· As the bar progresses through a continuous mill where the bar is rolled in multiple stands simultaneously, the stand speed must be controlled to ensure tension free rolling. The main methods of controlling the tension in the mill is with a tension free rolling speed control system and manually monitoring the current drawn by each motor as the

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  • THE MECHANICS OF TENSION CONTROL

    occur when tension is not controlled at the unwind station. • It is impossible to rewind rolls from a process without proper tension control at the rewind station. Telescoping, “dished” rolls, wrinkles and even web breaks will occur when tension is not controlled at

  • The Study of Continuous Rolling Mill Inter-stand Tension

    An alternate option may include torque stabilization by to the effect on speed of the previous, further or controlled mill stand. The tension control accuracy depends on how exact the unhindered

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  • 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. My intent in this book is to show the modern rolling techniques that

  • US4292825A Gauge and tension control system for tandem

    A gauge and tension control system for a tandem mill comprises a delivered strip thickness deviation calculating unit for detecting output strip thickness at each of rolling stands, a tension calculating unit for arithmetically determining interstand tensions between two adjacent rolling stands on the basis of armature currents of drive motors and rolling loads at every rolling stand, a memory

  • tension control method for a rolling mill Elvema

    Fuzzy Multiple Stand Tension Control of a Roughing . This paper reports a multistand fuzzy tension control system for a roughing rolling mill. Combined with a novel decoupling strategy [3], the proposed scheme makes it possible to separate interstand interactions and realize intelligent tension-free control of multiple roughing rolling stands.

  • US4292825A Gauge and tension control system for tandem

    A gauge and tension control system for a tandem mill comprises a delivered strip thickness deviation calculating unit for detecting output strip thickness at each of rolling stands, a tension calculating unit for arithmetically determining interstand tensions between two adjacent rolling stands on the basis of armature currents of drive motors and rolling loads at every rolling stand, a memory

  • tension control system for universal mill

    Tension Control Systems Tekmatic S.A. Tension Control Systems System Configurations Magnetic Particle Brake Ultrasonic Sensor PSDRV Power Supply Reliable and accurate control for all system design layouts Open loop tension control systems provide the least expensive manner to provide a degree of web tension control with the minimal amount of compo-nents.

  • The Study of Continuous Rolling Mill Inter-stand Tension

    An alternate option may include torque stabilization by to the effect on speed of the previous, further or controlled mill stand. The tension control accuracy depends on how exact the unhindered

  • [PDF]
  • FUZZY TENSION CONTROL OF THE WIRE ROD ROUGHING

    Tension control plays an important role in assuring product quality and process stability in steel rolling industry. Especially on looper control, there are a lot of applications where latest control theories had been applied, however, looperless interstand tension control of roughing mill remains a

  • [PDF]
  • THE MECHANICS OF TENSION CONTROL

    occur when tension is not controlled at the unwind station. • It is impossible to rewind rolls from a process without proper tension control at the rewind station. Telescoping, “dished” rolls, wrinkles and even web breaks will occur when tension is not controlled at

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  • A SURVEY OF THE LOOPER-TENSION CONTROL

    by proper control of the strip tension and looper angle. Figure 1 shows the tension and looper control in a typical finishing mill. Traditionally, looper angle control has been per-formed by changing the rotating speed of a main motor but there has been no tension feedback control

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  • Flex-Joist Tension-Controlled Open Web Steel Joist Design

    Tension-Controlled Open Web Steel Joists offers a safety feature to building owners and managers seeking additional protection against potential overload conditions and the related risks of damage, injury and exposure to liability. Under most overload conditions, Flex

  • TCB Tension Control Bolts & Shear Wrenches | Tension

    Tension Control Bolts Ltd offer a full range of shear wrench sales, hire and repair services. Downloads To incorporate our range of fasteners and Shear Wrenches into designs, CAD drawings, technical and dimensional details along with quality certificates and installation documents are available to download.

  • Everything you need to know about flatteners and levelers

    Tension Leveling. Tension leveling is an effective tension-assisted leveling method. The coil is put under significant tension between pull and drag bridles placed before and after the specially designed roller leveling device (see Figure 8). With tension leveling, all parts of the metal are pulled past the yield point, top to bottom, edge to edge.

  • Tandem cold mills (Steel) | SMS group

    The main units on the entry side are: a pay-off reel, laser welding machine, tension leveler, turbulence pickling line, and several horizontal strip accumulators. Next in line is the mill section consisting of several mill stands in CVC ® plus design and a continuous exit section with drum shear, double or carousel reel, and Rotary Inspect.

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  • Steel Rolling Technology Handbook (2nd Revised Edition)

    Spacer Gauge Control Gauge Deviation Control Strip Tension Control System Three Stage AGE for Tandem Cold Mill Feed-forward AGC for Tandem Cold Mill Flow-Stress Feed-Forward AGC Non-Interactive AGC Automatic Tension and Gauge Control System Interstand Tension Control in Hot Strip Mills Three-Stage AGC for Tandem Hot Strip Mill

  • Preventing Lamination Problems With 3 Basic DeltaModTech

    It’s All About Tension Control. The stretch (also known as strain) from tension is the paramount issue with lamination. To create a consistent laminated product, you want constant tension or strain. However, unwind rolls with torque control will not create constant tension unless diameter changes and inertia are

  • US5103662A Tandem rolling mill tension control with

    US5103662A US07/517,117 US51711790A US5103662A US 5103662 A US5103662 A US 5103662A US 51711790 A US51711790 A US 51711790A US 5103662 A US5103662 A US 5103662A Authority US United States Prior art keywords tension stand speed strip dtdvr Prior art date 1990-05-01 Legal status (The legal status is an assumption and is not a legal conclusion.