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Iterative feedback tuning of controllers in cold rolling

1999-7-1  In this paper the parameters of the strip thickness controller of a simulated cold rolling mill win be tuned using Iterative Feedback Tuning (1FT). 1FT is a model free tuning method, which uses experimental data to iteratively search for the optimal controller settings. 1FT was origi­nally developed for linear time-in"'ariant systems (Hjalmarsson et al., 1994) but has been shown to work for slowly varying

High quality rolling mills LUX Automation GmbH

Rolling mills In rolling mills fine steel sheeting, rods and forged items are made from larger slabs, blocks and billets. Our drive and control technology assume the fine tuning whether it’s for cold or hot rolling mills in steel production, Sendzimir or skin pass mills in stainless steel production or rolling mills in the aluminium industry.

Stigelius S.L. Process tuning, taking the rolling

2018-3-7  Stigelius S.L. Process tuning, taking the rolling process to a next level. Home. Stigelius, S.L., in operation since 2007, is offering unique level of “Know How” for Process Control Systems for Long Product Rolling Mills. Our main products are: · Process Tuning. See News, Project Celsa UK, Cardiff, Wales. · Consultancy.

Hydraulic gap control of rolling mill based on self

2016-12-5  The simulation and field test results of the step response and the position tracking that is carried out on the HGC system of a cold rolling mill show that when compared with the conventional PID control system, the self-tuning

First Control Systems AB First control

Rolling Mills Experience from several installations shows that the self-tuning regulator reduces the thickness deviations by 50-75% compared to conventional thickness control. Technique

Gain Tuning Model ofHuman Expert for Looper Height

2016-8-5  In hot strip rolling mills, the looper control system is automated. However, the looper's behavior tends to be unstable in threading. Therefore, human expert always intervenes and stabilizes the looper'sbehavior by tuning PID gains and interposing manipulation variable of looper control system.

Journal of Low Frequency Noise, Active vibration

2020-5-26  the tuning mechanical clearance,11 which plays an important role in vibration damping. In addition, some researchers adopted heuristic algorithms, such as neural networks and genetic algorithms, to optimize the state parameters of rolling mills.12 As a result, rolling chatter was decreased and rolling speed was increased. For the

Strip Thickness Control of Cold Rolling Mill with Roll

2013-11-12  [6,7]. In flat rolling, the strip is squeezed between two rolls so that its thickness is reduced by an amount called the draft [7]: dh h = −. in out (1) where . d = draft, mm. by [8]: L Rh h = − (in out ) (2) The true strain experienced by the strip in rolling is based on before and after stock thickness. In equation form: ln. in out. h h

A Flatness Based Approach for the Thickness Control in

2012-10-23  Typically, rolling mills consist of several mill stands with a pay off reel on the entry side and a tension reel on the exit side. In the case of continuous cold rolling mills in combi-nation with a pickling line on the entry side the pay off reel is replaced by a bridle roll. For the sake of clearness we

ABB ABILITYTM PERFORMANCE OPTIMIZATION SERVICE

2021-2-22  Service for cold rolling mills, offers all types of cold rolling operations unparalleled opportunities to optimize performance and profi tability. The new solution part of ABB’s metals digital portfolio and Collaborative Operations for Metals suite

Stigelius S.L. Process tuning, taking the rolling

2018-3-7  Process tuning on rolling mills, long products. Stigelius, S.L., in operation since 2007, is offering unique level of “Know How” for Process Control Systems for Long Product Rolling Mills.

High quality rolling mills LUX Automation GmbH

In rolling mills fine steel sheeting, rods and forged items are made from larger slabs, blocks and billets. Our drive and control technology assume the fine tuning whether it’s for cold or hot rolling mills in steel production, Sendzimir or skin pass mills in stainless steel production or rolling mills in

First Control Systems AB First control

Rolling Mills. Experience from several installations shows that the self-tuning regulator reduces the thickness deviations by 50-75% compared to conventional thickness control. Technique. Adaptive control and AI. Experience from a large number of installations shows clearly that First Control’s self-tuning regulators is superior to PID

Gain Tuning Model ofHuman Expert for Looper Height

2016-8-5  In hot strip rolling mills, the looper control system is automated. However, the looper's behavior tends to be unstable in threading. Therefore, human expert always intervenes and stabilizes the looper'sbehavior by tuning PID gains and interposing manipulation variable of looper control system.

Journal of Low Frequency Noise, Active vibration

2020-5-26  the tuning mechanical clearance,11 which plays an important role in vibration damping. In addition, some researchers adopted heuristic algorithms, such as neural networks and genetic algorithms, to optimize the state parameters of rolling mills.12 As a result, rolling chatter was decreased and rolling speed was increased. For the

Strip Thickness Control of Cold Rolling Mill with Roll

2013-11-12  or in many older mills by a screw arrangement driven by an electric motor [6]. Figure 1. The rolling process (flat rolling). 3. Mathematical Model of Cold Rolling Process . 3.1. Force Equation . Define the theory for prediction of specific roll force is central to the development of a model for tandem cold rolling. Referring to,which

A Flatness Based Approach for the Thickness Control in

2012-10-23  Typically, rolling mills consist of several mill stands with a pay off reel on the entry side and a tension reel on the exit side. In the case of continuous cold rolling mills in combi-nation with a pickling line on the entry side the pay off reel is replaced by a bridle roll. For the sake of clearness we

Innovative technologies and solutions for the steel

2021-6-28  Low-emission reheating and heat treatment furnaces. Cold rolling mills for carbon, stainless and silicon steels. Complete strip processing lines for carbon (AHSS, UHSS), stainless and silicon steels. High-quality electric resistance welding tube mills and tube finishing equipment. Services: upgrade, on-site assistance, remote monitoring, Steel

Maintenance for productivity Rolling models

2021-2-16  Rolling models Maintenance for productivity Exit target thickness (for reduction mills) or exit target elongation (for skin pass mills) The actual roll data such as roll diam-eter, crown, taper, length and texture are also important for a precise calcu-lation. General parameters such as mill and drive limits, standard practices, adap-

Primer on Flat Rolling 2nd Edition

2013-12-4  Primer on Flat Rolling is a fully revised second edition, and the outcome of over three decades of involvement with the rolling process. It is based on the author's yearly set of lectures, delivered to engineers and technologists working in the rolling

High quality rolling mills LUX Automation GmbH

In rolling mills fine steel sheeting, rods and forged items are made from larger slabs, blocks and billets. Our drive and control technology assume the fine tuning whether it’s for cold or hot rolling mills in steel production, Sendzimir or skin pass mills in stainless steel production or rolling mills in

Gain Tuning Model ofHuman Expert for Looper Height

2016-8-5  In hot strip rolling mills, the looper control system is automated. However, the looper's behavior tends to be unstable in threading. Therefore, human expert always intervenes and stabilizes the looper'sbehavior by tuning PID gains and interposing manipulation variable of looper control system.

Strip Thickness Control of Cold Rolling Mill with Roll

2013-11-12  or in many older mills by a screw arrangement driven by an electric motor [6]. Figure 1. The rolling process (flat rolling). 3. Mathematical Model of Cold Rolling Process . 3.1. Force Equation . Define the theory for prediction of specific roll force is central to the development of a model for tandem cold rolling. Referring to,which

Journal of Low Frequency Noise, Active vibration

2020-5-26  the tuning mechanical clearance,11 which plays an important role in vibration damping. In addition, some researchers adopted heuristic algorithms, such as neural networks and genetic algorithms, to optimize the state parameters of rolling mills.12 As a result, rolling chatter was decreased and rolling speed was increased. For the

Innovative technologies and solutions for the steel

2021-6-28  Low-emission reheating and heat treatment furnaces. Cold rolling mills for carbon, stainless and silicon steels. Complete strip processing lines for carbon (AHSS, UHSS), stainless and silicon steels. High-quality electric resistance welding tube mills and tube finishing equipment. Services: upgrade, on-site assistance, remote monitoring, Steel

Boilie rolling machine with cutter / Boilie roller

The rolling machine is fitted with a 250 mm. roller. 10-12-14-16-20-24-28-30 mm are available for both versions. Other sizes can be produced on demand. This machinery is ideal to making circular balls sweets and desserts made from marzipan, coconut,

Primer on Flat Rolling 2nd Edition

2013-12-4  Primer on Flat Rolling is a fully revised second edition, and the outcome of over three decades of involvement with the rolling process. It is based on the author's yearly set of lectures, delivered to engineers and technologists working in the rolling

MATERIALS SCIENCE Copyright © 2020 Ultrastrong low

Both the cold rolling and warm rolling produced nanolamellar structure (Fig. 2, A and B). However, at the same rolling, reduction of 90% warm rolling produced an average thickness of 17.8 ± 8.8 nm (Fig. 2, B and C), which is much thinner than what was produced by cold rolling (55 ± 25 nm; Fig. 2A). In the warm-rolled sample, nanol-

孙杰(东北大学教授)_百度百科

Dynamic matrix predictive control for a hydraulic looper system in hot strip mills, Journal of Central South University, 2017, 24(6):1369-1378, 通讯作者, 0.761 [13] Wang Hongyu, Sun Jie, Wan Zhenting, Wang Qinglong, Zhao Dewen, Zhang Dianhua, Analysis of

陈江华(湖南大学材料科学与工程学院教授)_百度百科

2010-9-1  陈江华(湖南大学材料科学与工程学院教授)_百度百科. 陈江华 是一个 多义词 ,请在下列 义项 上选择浏览( 共10个义项 ) 添加义项. 中国篮球运动员. 湖南大学材料科学与工程学院教授. 合肥学院经济系硕士. 普洱市民族宗教事务委员会主任. 浙江大学