Strip Thickness Control of Cold Rolling Mill with Roll ...

been developed for hot or cold mill processes. The Brit-ish Iron and SteelResearch Association (B1SRA) AGC method based on the gaug meter principle and the feede forward AGC method using the delivery time of the strip have been widely utilized in steel rolling mills [3]. Strip …

An integrated model for hot rolling of steel strips

For hot rolling of steel strips, a computer simulation model was developed that completely integrates different phenomena such as the mechanics and the heat transport in the strip and the roll ...

an integrated model for hot rolling of steel strips

an integrated model for hot rolling of steel strips by Umut Hanoglu Supervised by Prof. Božidar Šarler Heated up to 1200 –1250 C for steel, 500 –550 C for aluminum Removing cast dendrite structures Cold rolling requires more than hot rolling Created due to the roll pressure As a result of relative motion between roll and the strip Acting ...

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 key element of steel …

Computer Modeling of Microstructural Change and Strength ...

A calculation model for predicting the strength of hot rolled low carbon steel sheets from their chemical compositions and processing variables has been developed as a combination of the hot deformation model, the transformation model…

CVC ® plus bending and shifting systems in finishing ...

This process model calculates, among others, the set values for the CVC ® shifting and work roll bending systems. The main mechanical components of this actuator are the CVC ® bending and shifting blocks integrated in the finishing stands of hot flat rolling mills, CSP ® plants and Steckel mills.

Used Hot Rolling Mills for sale. Demag equipment & more ...

HOT ROLLING MILL PLANT FOR ROUND BAR. MACHINE# 12311 SPECIFICATIONS: HOT ROLLING MILL PLANT FOR ROUND BAR: Production capacity: 45 tons/hour 1. BILLET SIZE: 160mm x …

Study and Application of SSC Model on Hot Rolling Wide ...

According to cutting loss of the head and the tail of hot rolling wide strip mill for the loss of width, the control conditions, the control mode and control model of short stroke control (SSC) of the rough mill …

recrystallization - arXiv

A new unified approach for modeling hot rolling of steel Part 1: Comparison of models for recrystallization J. Orenda,b, F. Hagemann b, F. Klose, B. Maas, H. Palkowskia, aInstitute for Metallurgy, Robert-Koch-Straße 42, 38678 Clausthal, Germany bSalzgitter Mannesmann Forschung , Eisenhüttenstraße 99, 38239 Salzgitter, Germany Abstract Models …

ENDLESS CASTING & ROLLING SOLUTIONS | Primetals Technologies

The Arvedi ESP process produces hot strip in a combined, continuous and uninterrupted casting and rolling process. In this type of plant, the energy consumption and the associated costs are up to 45 percent lower than those of conventional casting and rolling …

An integrated model for hot rolling of steel strips ...

For hot rolling of steel strips, a computer simulation model was developed that completely integrates different phenomena such as the mechanics and the heat transport in the strip and the roll, and the metallurgical behavior of the strip.

How does it work: hot-strip rolling mill - YouTube

Mar 31, 2015· ThyssenKrupp Steel Europe spent a quarter of a million euros on renovating its hot-strip rolling mill in Duisburg. The animation shows how it …

Microstructure evolution model for hot strip rolling of Nb ...

AbstractA microstructure model for hot strip rolling of an Nb–Mo microalloyed complex phase steel has been proposed. The constitutive behaviour of austenite is described by the Kocks–Mecking model. The static softening kinetics is simulated by a combined recovery recrystallisation model using the law of mixtures. Ferrite transformation start is modelled with an approach that considers the ...

JSW Steel orders continuous slab casters & a hot rolling ...

It produces hot strip with thicknesses from 1.5 to 16 mm and widths from 900 to 1,650 mm. The maximum coil weight is 34 metric t. The mill can handle many different steel grades, including carbon structural steel, high quality carbon steel, low alloy steel…

Production Optimization and Scheduling in a Steel Plant ...

comprise all of them into one optimization model. However, this is currently not yet possible, both due to the computational and modeling limitations. In our present work, we will focus on the problem of production scheduling on the hot rolling mill. 2. HOT ROLLING 2.1 The process The hot strip m ill typically consists of several processing

An Integrated Model for Predicting Hierarchical ...

A robust model for calculating the necessary process variables such as strain, strain rate and temperature in hot rolling of a steel plate or strip is presented in this paper. The applied approach includes a well-constructed velocity function in the deformation model that is validated using a commercial finite element solver. The developed microstructure model is then integrated into the ...

Stainless steel lines | SMS group

Directly after hot-rolling, these lines anneal and pickle the strip before winding it into coils. Cold-strip-annealing and pickling lines Next up is another annealing and pickling process for the cold-rolled strip …

A COST MODEL FOR THE EFFECT OF SETUP TIME REDUCTION …

Avesta, located in mid-Sweden, where stainless steel strip is produced in an integrated mill with meltshop, continuous casting and hot rolling. The Avesta plant has a traditional functional organization, with each production step managed as a separate unit. This has resulted in a decoupled operation of meltshop and continuous casting (CC)

Basics of Rolling of Steel – IspatGuru

Nov 21, 2015· Hot rolling results in residual stress-free product. However, scaling is a major issue during hot rolling, due to which dimensional accuracy is difficult to maintain. Cold rolling of hot rolled steel is important, due to high accuracy and lack of oxide scaling. It is carried out below the recrystallization temperature and introduces work hardening.

Finite Element Simulation of Hot Strip Continuous Rolling ...

Journal of Iron and Steel Research International March 2007, Volume 14, Issue 3, pp 30–36 | Cite as Finite Element Simulation of Hot Strip Continuous Rolling Process Coupling Microstructural Evolution

Thermomechanical Model for Rolling and Cooling of Hot ...

during laminar cooling. US Steel needed to evaluate their current hot rolling process and was seeking suggestions for process changes to reduce these metallurgical differences. The goal is to extend the model of the hot strip mill at US Steel's Gary Works developed by a 2014 Senior Design group to estimate the temperature through the

Looper-gauge Integrated Control in Hot Strip Finishing ...

Process Model of Hot Strip Finishing Mill In this section, an overview of the process model with strip tension, looper angle and gauge model is given to synthesize the integrated system. The looper, strip and interstand geometry for rolling stands are shown in Fig. 2. 2.1. Deformation Resistance Since strip temperature is the primary determiner ...

Rolling of hot strip and strip defects – IspatGuru

Jan 14, 2017· Hot Rolling is employed for rolling of steel slabs to hot strips in hot strip mills. Like any other hot rolling operations, rolling of hot strip is also a plastic deformation of the material of the slab caused by compressive force applied through a set of rolls. The cross section of the slab is reduced by the hot rolling process.

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An integrated thermal model of hot rolling

An integrated thermal model of hot rolling authoredbyKatrin Speicher, Andreas Steinboeck, Daniel Wild, Thomas Kiefer, and Andreas Kugi ... To meet the high quality requirements of nowadays steel prod uction, it is vital that the rolling takes place in the prescribed temperature range . Moreover, the tem-

Model Based Control System for Hot Steel Strip Rolling ...

Abstract: As part of a research project on El-hadjar Hot Steel Rolling Mill Plant Annaba Algeria a new Model based control system is suggested to improve the performance of the hot strip rolling mill process. In this research off-line model based controllers and a process simulator are described .The process models are based on the laws of physics. these models …

An integrated hot rolling and microstructure model for ...

Apr 25, 2014· In hot strip rolling, strain rates are very high (more than 100 s −1) while interpass times are very short (less than 3 s), which makes dynamic recrystallization very unlikely. In multi-pass hot strip rolling, residual strain (resulting in a stored energy) is, in individual passes, accumulated due to incomplete softening.

(PDF) Flow Stress Evaluation in Hot Rolling of Steel ...

In this paper, an inverse analysis technique is used to obtain the flow curve of materials in a hot rolling finishing mill. This technique is based on minimization of the differences between the experimental …