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tension control method for a rolling mill
New tension control at the head of strip in hot strip ...
12/09/2008· New tension control at the head of strip in hot strip finishing mill New tension control at the head of strip in hot strip finishing mill Park, Cheol Jae; Hwang, I Cheol 00:00:00 In this paper, a new tension control scheme is proposed to diminish the width shrinkage at the head of the strip in the hot strip finishing mill. . The proposed control scheme is applied before the looper ...
DIGITAL OPTIMAL CONTROL OF MULTISTAND ROLLING MILLS .
Digital Optimal Control of Multistand Rolling Mills ˙˙ 263 Journal of Engineering Science and Technology April 2014, Vol. 9(2) Section 4, and the proposed algorithm is then applied to a typical rolling process in Section 5. Finally, the concluding remarks are given in section 6. 2. Rolling Mill Behavior
Yoshihiro Kamigane Inventions, Patents and Patent ...
A shear is generally disposed upstream of the tandem rolling mill to shear the leading and trailing ends of a workpiece. When the shear is cutting the trailing end of the workpiece, a backward tension is produced between the shear and the first rolling stand of the tandem rolling mill, resulting in abrupt variations of the process data used for ...
Tech Automation To Improve Productivity and Quality
01/01/2013· The most frequent causes of dimensional defects are due to poor adjustments to the mill control and tension while rolling. To reduce the material tension along the mill two types of control are applied: minimum tension control and loop control. Each is applied in different parts of the mill. In the first part of mill, roughing and intermediate ...
JPSA Controlling method of rolling mill .
PURPOSE:To control most adequately a parameter value to be controlled of a rolling mill with good responsiveness by calculating the parameter value from calculated values and the learning term obtd. by the previous control and updatting the learning gain for every number of control. CONSTITUTION:Rolling load on a rolled material 1 is detected with a load cell 3 and the inlet thicknss, outlet ...
Control of accumulator in a continuous processing line .
Uncontrolled tension transients in the strip willud normally result in poor product quality which can be attributed to poor performance from an accumulator control system. Thus, the optimal method of controlling an accumulator in a continuous processing line is a significant and important issue.ud ud This dissertation presents an analysis of ...
Design and Analysis of Intelligent Fuzzy Tension ...
Design and Analysis of Intelligent Fuzzy Tension Controllers for Rolling Mills by Jingrong Liu Athesis presented to the University of Waterloo in fulfilment of the
「tension control」に関連した英語例文の一覧と使い方 .
「tension control」に関連した英語例文の一覧と使い方 . tension control ... plate thickness and tension control method of tandem rolling mill and plate thickness and tension control device 例文帳に追加. タンデム圧延装置の板厚張力制御方法及び板厚張力制御装置 特許庁. velocity/torque controller for tension control motor 例文帳に追加 ...
Cladding Rolling Mill Element
Cladding rolling mill is used to combine two dissimilar materials into a single strip through compression. In this way the beneficial properties of each material can .
The development of the theory of metal rolling and its ...
The control of rolling is done by a machine, or rolling mill. From a control point of view it is necessary to study the combined behavior of machine and metal deformation to find the variables that may be used to most effectively regulate the process. A typical problem in this area is to control the output thick
IDC Dimension Interstand ABB Group
to billet. Traditional control systems compensate for these differences through minimum tension frontend adaptation each time a new billet enters the mill, but endless rolling clearly does not allow frontend adaptation. Interstand Dimension Control is the answer to this problem. Interstand Dimension Control Interstand Dimension Control
Aluminum Hot Rolling Mill Hani Tech
Single Stand Double Coiling Aluminum Hot Rolling Mill. Rough rolling is carried out on a reversible rolling mill with a thickness of 1825 mm. After doublecoiling reversible finishing rolling, the minimum rolling thickness is mm, and the production capacity can reach 150,000 tons per year. This method is better than single stand and single ...
Hot strip mill tension–looper control based ... DeepDyve
01/03/2000· Since tension and looper control is the key to successful operations in the hot strip finishing mill, several multivariable controllers have been applied. However, this leads to complicated controllers, which are hard to tune on site. This paper presents a new control method based on decentralization and coordination. First, interactions between tension and the looper are evaluated to .
tension control"」に関連した英語例文の一覧と使い方 .
plate thickness and tension control method of tandem rolling mill and plate thickness and tension control device 例文帳に追加. タンデム圧延装置の板厚張力制御方法及び板厚張力制御装置 特許庁. tension control device and its control method, and transfer device with tension control device 例文帳に追加. 張力制御装置およびその制御方法 ...
Ensuring quality control at America's largest steel mill ...
Archive; Ensuring quality control at America's largest steel mill. Replacing digital linear encoders with magnetostrictive sensors reduces downtime and guarantees onspec steel products.
Multidimensional size control in Rod Bar Rolling and Cold ...
We developed multivariable control systems of Rod Bar Rolling and Cold Strip Rolling. In these systems we used the multivariable control theory and intelligent control method, that is, fuzzy method to adjust the multidimensional size such as the section shape in bar rolling, shape (strip flatness) and edge drop (strip edge thickness distribution) in cold strip rolling.
THE MECHANICS OF TENSION CONTROL
Do not attempt this method of measuring tension if there is a drive motor on the unwind or for a rewind with a drive motor. Serious injury could result if this method of measuring tension is attempted when there is a drive motor at the unwind or rewind zone. • Tension can also be calculated if you know the model of a brake or clutch, the
Metal Rolling Manufacturing
In a metal rolling process, rolls, stands, bearings, housing, motors, and other mechanical equipment are all a necessary part of the manufacturing operation. The place where all the equipment for metal rolling manufacture is set up is called a rolling mill. Rolling mills often .
Development of new tension control method for hot ... .
Development of new tension control method for hot strip finishing mill By M. Saito, S. Tanimoto, Y. Hayashi, T. Hirokawa, K. Yabuuchi, Y Miyai and London (United Kingdom). British Industrial and Scientific International Translation Service Metals Society (Montserrat)
Automatic Gauge Control For 4himill
Optimization of a Cold Rolling Mill Thermo Fisher Scientific. Automatic Gauge Control The average human response time is on the order of a quarter of a second, at the maximum rolling speed of a cold or foil mill, 8 meters of strip is produced. It is easy to see why Automatic Gauge Control (AGC) is an essential component of modern rolling mills.
Modeling, Simulation and Identification for Control of ...
Keywords: rolling mill control, tandem cold rolling, ... Modeling, Simulation and Identification for Control of Tandem Cold Metal Rolling This work aims at showing the deduction of a model, tailored for control, for a tandem cold metal rolling of 5stands, the dynamic simulation of this process and results with application of SIMF8, a new subspace identification method implementation that will ...
PROFILE FLATNESS MEASUREMENT IN HOT AND COLD ROLLING .
PROFILE FLATNESS MEASUREMENT IN HOT AND COLD ROLLING MILLS Alec Shaw, Sales Marketing IMS Asia Introduction A summary of the available methods of gauging profile and flatness in modern Hot and Cold Strip and Plate Mills is presented in .
Dynamics and Variance Control of Hot Mill Loopers
Key words: Loopers, Covariance control, Variance control, Hot strip mill, Hot rolling 1 Introduction A flnishing mill produces thin sheet from hot steel bars by successively reducing the gauge using 5 to 7 sets of rolls, each called a mill stand. The flnishing mill is part of a hot strip mill, of which a typical layout is given in Figure 1.
Rolling of hot strip and strip defects – IspatGuru
14/01/2017· Gauge control in hot strip rolling mills is achieved through measurement of strip thickness using xray gauge and adjusting the strip tension using feedback control system. During the rolling of hot strips, the hot strip is coiled to handle its increasing length due to a reduction of thickness. Further it is important to reduce the complication ...
Design of a robust thickness controller for a singlestand ...
Design of a robust thickness controller for a singlestand cold rolling mill. / Hwang ... we derive a mathematical model of a singlestand cold rolling mill and design control systems to improve the thickness precision while maintaining prescribed tension for the strip. On the basis of a linearized model of the rolling mill system, we propose a thickness controller using an Internal Model ...