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Research area Hot Strip Rolling – Automation & Control ...

In the research area Hot Strip Rolling, advanced nonlinear process control problems associated with the operation of a tandem hot-strip finishing mill are solved. A tandem hot-strip mill like the one shown in Fig. 2 is a nonlinear MIMO dynamical system.

Cold and hot-rolled strip production : R+W Couplings

COLD AND HOT-ROLLED STRIP PRODUCTION - CONTINUOUS MEASUREMENT AND QUALITY CONTROL. The mill stand requirements for producing steel pipes are high. Pipe diameters of up to 1,800 mm are continually subjected to measurement and quality control during the production process.

Process Control In Hot Strip Mill - cafe-oudranzel.nl

Improved process control of the hot strip mill may lead to indirect energy savings through reduced product rejects, improved productivity, and reduced down time. The primary aim is to control the oxygen level, and hence optimize the combustion in the furnace, especially as the load of …

Rolling (metalworking) - Wikipedia

Slabs are the feed material for hot strip mills or plate mills and blooms are rolled to billets in a billet mill or large sections in a structural mill. The output from a strip mill is coiled and, subsequently, used as the feed for a cold rolling mill or used directly by fabricators.

Hot strip mills (Steel) | SMS group

You'll appreciate X-Roll ® hot strip mills from SMS group as all-round plants for high-quality hot strip. They are designed to produce flat steel from thin strip with a minimum final gauge of 1.2 millimeters to high-strength pipe steels up to 25.4 millimeters thick, including stainless steel grades.

HOT ROLLING - FLAT PRODUCTS | Primetals Technologies

HOT STRIP MILL — HIGHEST PERFORMANCE FOR NEW AND EXISTING STEEL MILLS The demand for hot rolled strip is growing in multiple ways. To remain competitive, new and existing mills must meet this challenge in the best possible way. The production of hot strip is a …

How To Maintain Dimensional Quality in the Hot Strip Mill

Nov 12, 2015· Process Variables in the Hot Strip Mill. There are many derivatives of the modern hot strip mill, from multi-stand to reversing Steckel mills to direct casting, but the end goal is always to produce a coil with uniform mechanical and dimensional properties from head to tail and edge to edge. Advanced process control algorithms use hundreds of ...

Robust steering control of hot strip mill - Accueil

Robust Steering Control of Hot Strip Mill Ivan Malloci, Jamal Daafouz, Member, IEEE, Claude Iung, Member, IEEE, Rémi Bonidal and Patrick Szczepanski Abstract—In this article, a robust hot strip mill steering control is proposed in order to guarantee the system stability and to improve its performances. The rolling process consists

ROBUST STEERING CONTROL OF HOT STRIP MILL

hot strip mill of Eisenhüttenstadt are presented. Keywords: Steering control, Singular perturbation, H2 control design. 1. INTRODUCTION The purpose of the rolling process is to obtain a metal strip with desired geometric, metallic and mechanic charac-teristics. To this aim, strips are crushed between several pairs of rolls in inverse rotation.

Hot Strip Mill Temperature Monitoring - Thermo-Kinetics

HOT STRIP MILL APPLICATION Infrared PyrometerS used in Steel Mill Hot Rolling Application. What they do A steel industry consulting engineering company offering machinery and a complete range of engineering services to the steel mill industry, from engineering services, machinery supply, automation systems, melt shop systems, operations training, and mill management software.

Tension Control of a Hot Strip Mill Finisher - ScienceDirect

This paper describes interstand tension control by looper and looper less tension control of a hot strip mill finisher. The looper tension control methods are conventional, non-interactive, LQ (Linear Quadratic), H ∞, and ILQ(Inverse Linear Quadratic) control.

LSP-HD: Thermal Infrared Linescanner | AMETEK Land

The LSP-HD is a compact and sophisticated high accuracy thermal infrared linescanner, designed to produce advanced thermal images of moving processes.

The Hot Rolling Process - California Steel Industries

The Hot Rolling Process The primary function of the Hot Strip Mill is to reheat semi-finished steel slabs of steel nearly to their melting point, then roll them thinner and longer through 12 successive rolling mill stands driven by motors totaling 77,000 hp, and finally coiling up the lengthened steel sheet for transport to the next process.

Case Study and Analysis of the Production Processes in a ...

Case Study and Analysis of the Production Processes in a Steel Factory . in Jordan. Jamil J. Al Asfar. 1,* ... real-time advice for process supervision and control. Most operators' support systems for steel production are ... Tonnage Oxygen Plants, Plate Mill, Hot Strip Mill, Cold Rolling Mill, other secondary mills, Captive Power Plants and a ...

Hot strip mill tension–looper control based on ...

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.

Development of strip crown control system in hot strip mill

Abstract: In order to control hot strip crown and flatness, a paired crossed roll mill was installed in Hot Strip Mill in NKK Fukuyama Works. Mathematical models for cross angle setting and a new method to set each stand cross angle have been applied to an online process computer system, in order to control strip crown and flatness effectively.

hot strip mill process - vrouwtjeplooi.nl

Process Control in Hot Strip Mill | Industrial Efficiency, Improved process control of the hot strip mill may lead to indirect energy savings through reduced product rejects, improved productivity, and reduced down time The primary aim is to control the oxygen level, and hence optimize the combustion in the furnace, especially as the load of ...

Tata Steel Limited

Tata Steel Group recorded a turnover of US $ 26.13 bn in the year ended March 31, 2012. Contents Tata Astrum 1 The Basket of Offerings 2 Process Flow 3 Leading Edge Technologies 4 Steel Making 5 Hot Strip Mill 6 LD#3 & TSCR Mill 7 Pickling and Skin Passing 8 Shearing Line 9 Quality & Process Control 10 Testing Parameters 11

Process Control in Hot Strip Mill | Industrial Efficiency ...

Improved process control of the hot strip mill may lead to indirect energy savings through reduced product rejects, improved productivity, and reduced down time. The primary aim is to control the oxygen level, and hence optimize the combustion in the furnace, especially as the load of the furnace may vary over time. The savings depend on the load factor of the furnace and control strategies ...

HOT STRIP MILLS Mechanical Equipment - SMS group

SMS DEMAG Hot Strip Mills 10 The drum-type shear installed between the roughing and finishing mills of a hot strip mill crops the trans-fer bar at its head and tail. In special applications, the drum-type shear also serves to divide transfer bars and finished plates. Based on the experience gained from more than 60 drum-type shears built so far,

Report on Best Available Techniques (BAT) in the German ...

Report on Best Available Techniques (BAT) in the German Ferrous Metals Processing Industry FINAL DRAFT Deutsch-Französisches Institut für Umweltforschung (DFIU) French-German Institute for Environmental Research University of Karlsruhe (TH) o. Prof. Dr. O. Rentz Dipl.-Wirtschaftsing. Rainer Jochum, Dr. Frank Schultmann Karlsruhe, March 1999

Solving problems on the tube mill - The FABRICATOR

Aug 16, 2001· Solving problems on the tube mill. The FABRICATOR February 2001 August 16, 2001 By Robert Sladky. Tube mill operators face a variety of challenges every day in their effort to produce high-quality tubing in a cost-effective and productive way.

Hot Rolling Mill Hydraulic Gap Control (HGC) thickness ...

P. Kucsera et al. Hot Rolling Mill HGC Thickness Control Improvement – 98 – Another way to determine the thermal expansion of the work roll is the modelling of the heat transfer between the work rolls and the strip. This depends on the roll speed, strip thickness, the properties of the strip, roll gap, contact time and cooling parameters.

Designing of Hot Strip Rolling Mill Control System

change data of process control and control commands to based automatic control system through Profibus-DP. The system choose S120 frequency conversion device [4] and use SCOUT software to set the synchronous mo- ... Designing of Hot Strip Rolling Mill Control System ...

How To Gain Better Control of Your Hot Strip Mill Operations

How To Gain Better Control of Your Hot Strip Mill Operations ... To ensure product uniformity, hot rolling mills need reliable, repeatable process control data to identify operating issues; off-gauge and off-tolerance product results in the downgrading or even scrapping of coils. However, when hot material exits the rolling mill, the vertical ...

Highest performing Hot Strip Mills | Primetals Technologies

HOT STRIP MILL — HIGHEST PERFORMANCE FOR NEW AND EXISTING STEEL MILLS The demand for hot rolled strip is growing in multiple ways. To remain competitive, new and existing mills must meet this challenge in the best possible way. The production of hot strip is a …

Robust steering control of hot strip mill - IEEE ...

Abstract: In this article, a robust steering control design is proposed in order to guarantee the stability of a hot strip mill and improve its performances. The rolling process consists in crushing a metal strip between some rolls for obtaining a product with constant and desired thickness.

Hot Sheet and Plate Rolling Fundamentals – Practical ...

This seminar provides a comprehensive overview of hot rolling steel strip and plate. The course covers fundamentals, metallurgical and quality requirements, equipment, rolling theory, control, rolls, temperature control, measurement, safety and new technology. A new module on maintenance and reliability has been included by popular demand.

Online Parameter Estimation for Adaptive Feedforward ...

A new adaptive disturbance feedforward control strategy of the strip thickness in a hot strip rolling mill with online parameter estimation is proposed. The feedforward control strategy makes use of the measured strip temperature and strip entry thickness.

Hot Rolling / Rolling Mills - LumaSense Technologies

Infrared sensors measure strip and sheet temperature so that rolling mill stands can be efficiently set to match the steel's temperature. Sensors can be used to detect the presence of hot metal and accurately time the roll stand operation. Pyrometers can be used to measure the roll temperature as water cools the roll during the quenching process.

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