Customer case aboutTension Control System For Universal Mill

Tension Control System For Universal Mill

Tension control system for universal mill Hitachi, Ltd.

Tension control system for universal mill . United States Patent 4003230 . Abstract: A tension control system for use with a universal mill such as an H beam mill, in which a tension force in a billet, to be rolled, between roll stands is controlled so as to be maintained at zero. Providing that effective loads (Pu) are obtained by linearly

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Control system of interstand tension of continuous rolling

A control system as set forth in claim 1 wherein each stand comprises an edger mill driven by a first motor, and a horizontal mill driven by a second motor. 14. In a control system of the interstand tension of a continuous rolling mill including a plurality of stands each provided with mill rolls driven by a motor, the improvement which comprises:

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Looper and tension control in hot rolling mills: A survey

2007-7-1  Looper and tension control, shown in Fig. 2, is important in hot strip mills because they affect both the dimensional quality and the mass flow of a strip. The high strip tension between stands induces width shrinkage, thickness reduction and moreover can produce an edge wave on a strip. However, it does make the mass flow more stable and hence

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Designing of Hot Strip Rolling Mill Control System

Aimed at the complex demand of hot strip rolling mill in practicing, the configuration of the coiler and the technological process is analyzed. The arithmetic of coiling tension and the control process is introduced. The frame of the tension adjusting system is given. The coiler control system hardware is designed. The system is designed scientifically with steady control

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A SURVEY OF THE LOOPER-TENSION CONTROL

2011-7-20  looper and tension control system tension looper roll M Fig. 1. Tension and looper control in finishing mills Where, ASR: Automatic Speed Regulator, ACR: Automatic Current Regulator from mass flow unbalance. For example, in the case of low tension, the looper angle increases to get proper tension, resulting in the stable

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Robust Tension Control of Strip for 5-Stand Tandem Cold

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.

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New tension control at the head of strip in hot strip

2008-9-12  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.

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The Study of Continuous Rolling Mill Inter-stand Tension

2017-1-23  rolling mill using different system for tension inferential control. The finished studies prove that size alignment is provided with the tension control system affecting speed of the further stands. The paper verifies that the characteristics of the rolling mill including aligning ability depend on

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THE MECHANICS OF TENSION CONTROL

2019-2-18  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. We will discuss: 1) What is tension? 2) Why is tension important to me? 3) Where is tension control important in the process? 4) How do tension controls work?

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Basics of Web Tension Control Summary

2007-10-18  Control (Amplifier) System Tension (Machine) Output / tension is influenced only by operator adjustment. To try to keep tension constant as the roll diameter changes, the operator must adjust the control output as he thinks it is necessary. Manual Systems. Example: Driving a car equipped with a sensor that detects

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US20020177972A1 Tension control system for rod and

A system is disclosed for controlling the tension in rod or bar products being rolled continuously in first and second roll stands independently driven by drive motors. A first surface velocity gauge is positioned at the delivery side of the first roll stand and a second surface velocity gauge is positioned at the entry side of the second roll stand.

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A SURVEY OF THE LOOPER-TENSION CONTROL

2011-7-20  looper and tension control system tension looper roll M Fig. 1. Tension and looper control in finishing mills Where, ASR: Automatic Speed Regulator, ACR: Automatic Current Regulator from mass flow unbalance. For example, in the case of low tension, the looper angle increases to get proper tension, resulting in the stable

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Universal Mill Fine Material Controlled Milling Kemutec

3 hp to 125 hp. Interchangeable grinding media options include turbine and screen, pinned disc, and rib track. +44 (0)1625 412000. [email protected] Kemutec’s KEK Universal Mills benefit from varied and versatile system design and capabilities. They

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An Innovative Tension Control Looper System for Hot Strip

The paper discusses the design and application of an innovative tension control looper and presents the analysis and optimization of this system. This allows the improvement of product quality by closer strip tolerances as well as of productivity by means of a more efficient control of the process.

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The Study of Continuous Rolling Mill Inter-stand Tension

2017-1-23  rolling mill using different system for tension inferential control. The finished studies prove that size alignment is provided with the tension control system affecting speed of the further stands. The paper verifies that the characteristics of the rolling mill including aligning ability depend on

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Tandem cold-mill solutions by Primetals Technologies

Fig.4- Advantages of 6-high Universal Crown Control Mill (UCM) on strip flatness Complete automation and process control for Tandem Cold Mills Plant productivity and product quality are substantially depending on the quality of plant automation, process control,

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WINDER/UNWIND TENSION CONTROL Blackhawk

2019-4-18  tension control frequently yields (almost surprising) indirect improvements, particularly on printing, packaging and other registration type machines. Experienced operators can get the best possible performance out of a marginal tension control system, by various frequent adjustments to that fickle system.

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Designing of Hot Strip Rolling Mill Control System

2016-8-5  control. When the tension control switch to the speed control, to cancel the additional speed Δn. In the working process of the coiler, from the strip head into the mandrel set up tension to the strip tail left the last finishing mill, the coiler entered the stage of tension control

get price

THE MECHANICS OF TENSION CONTROL

2019-2-18  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. We will discuss: 1) What is tension? 2) Why is tension important to me? 3) Where is tension control important in the process? 4) How do tension controls work?

get price

Basics of Web Tension Control Summary

2007-10-18  Control (Amplifier) System Tension (Machine) Output / tension is influenced only by operator adjustment. To try to keep tension constant as the roll diameter changes, the operator must adjust the control output as he thinks it is necessary. Manual Systems. Example: Driving a car equipped with a sensor that detects

get price

Universal Mill Fine Material Controlled Milling Kemutec

3 hp to 125 hp. Interchangeable grinding media options include turbine and screen, pinned disc, and rib track. +44 (0)1625 412000. [email protected] Kemutec’s KEK Universal Mills benefit from varied and versatile system design and capabilities. They

get price

A neuro-fuzzy system for looper tension control in rolling

2005-1-1  A looper tension control system is common to many rolling processes. Conventional tension controllers for mill actuation systems are based on a rolling model. They therefore cannot deal effectively with unmodeled dynamics and large parameter variations that can lead to scrap runs and machinery damage. In this paper, this problem is tackled by

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An Innovative Tension Control Looper System for Hot Strip

The paper discusses the design and application of an innovative tension control looper and presents the analysis and optimization of this system. This allows the improvement of product quality by closer strip tolerances as well as of productivity by means of a more efficient control of the process.

get price

Designing of Hot Strip Rolling Mill Control System

2016-8-5  control. When the tension control switch to the speed control, to cancel the additional speed Δn. In the working process of the coiler, from the strip head into the mandrel set up tension to the strip tail left the last finishing mill, the coiler entered the stage of tension control

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Improvement of Electric and Mechanical System for

2016-1-1  Based on the example of the 2,500 mm mill at OJSC Magnitogorsk Iron and Steel Works, it has been proven that existing tension and loop size indirect control systems (TLSCSs) does not meet increasingly stringent requirements for accuracy of tension control. Here, improvement of control algorithms does not result in a significant quality rise.

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WINDER/UNWIND TENSION CONTROL Blackhawk

2019-4-18  tension control frequently yields (almost surprising) indirect improvements, particularly on printing, packaging and other registration type machines. Experienced operators can get the best possible performance out of a marginal tension control system, by various frequent adjustments to that fickle system.

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HYDRAULIC INTERSTAND TENSION REGULATING AND

The first stand S1 does not incorporate a tension regulating feature. Rather, the hydraulic control system 48 for the first stand is controlled by means of an entry automatic gauge control system 50 connected to an X-ray thickness gauge 52 at the output of the first stand S1 as well as to strain gauges 32 and 34.

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What is the Best Tension for My Product?

2006-10-24  Tension is the most common control on web machinery. Good tension control is required to reduce waste and downtime. However, before you can effectively design much less operate tension controls, you must know what tension is best for your process and product. You must also know how much variability is tolerable.

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Basics of Web Tension Control Summary

2007-10-18  Control (Amplifier) System Tension (Machine) Output / tension is influenced only by operator adjustment. To try to keep tension constant as the roll diameter changes, the operator must adjust the control output as he thinks it is necessary. Manual Systems. Example: Driving a car equipped with a sensor that detects

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WIRE ROD MILLS SMSgroup

2018-3-27  WIRE ROD MILLS For a good contact to the customer Wire rod is an all-round talent. From components the advanced user-friendly control system ensu-res a high capacity utilisation of the plants and makes configurations: Horizontal, vertical, tiltable and universal. The HL concept is thus suitable for roughing, intermedi-ate and finishing

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