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

    Mar 20, 2003  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.

  • Cited by: 72
  • 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 ...

  • Hot rolling of steel - PDF Free Download

    MODEL-BASED OPTIMISATION AND CONTROL OF THE HOT-ROLLING PROCESS FOR THE DESIGN OF STEEL MICROSTRUCTURE Computer simulation of the thermal behaviour of a work roll during hot rolling of steel strip PDF Reader; ... Hot Rolling of Steel, by William L. Robert, Marcel Dekker, Inc., New York, 1983. ISBN 0-8247-1345-1, vi + 1033 pages, 800 ...

  • 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 ...

  • Author: Chun Hui Luo, David Martin, Juha Pyykkönen
  • Rolling Technology for Thin Steel Strip in Hot Strip Mill ...

    2. Study with a continuous hot steel strip rolling 2.1 Calculation model for hot steel strip rolling The hot strip mill shown in was assumed as a Fig. 1 calculation model for analysis. This facility consists of one rougher and six finishing stands. Table 1 shows the rolling conditions (Case-R) based on the assumption that low carbon steel ...

  • An integrated hot rolling and microstructure model for ...

    An integrated hot rolling and microstructure model for dual-phase steels D Bombac1,3,MJPeet1, S Zenitani2, ... hot rolling is applied while the steel is austenitic. Deformation ... In multi-pass hot strip rolling, residual strain (resulting in a stored energy) is, in individual passes, accumulated due to incomplete softening. ...

  • Books: Fit for hot and cold rolling of strips - Basics

    Disadvantages of hot rolling are the high energy use and scale formation. Due to heat loss of the material hot rolling is not practicable for thin strip. In this case cold rolling is performed. Cold rolling in the process chain of an integrated steel works improves the

  • Hot rolling of steel - PDF Free Download

    MODEL-BASED OPTIMISATION AND CONTROL OF THE HOT-ROLLING PROCESS FOR THE DESIGN OF STEEL MICROSTRUCTURE Computer simulation of the thermal behaviour of a work roll during hot rolling of steel strip PDF Reader; ... Hot Rolling of Steel, by William L. Robert, Marcel Dekker, Inc., New York, 1983. ISBN 0-8247-1345-1, vi + 1033 pages, 800 ...

  • (PDF) Model for prediction of strip temperature in hot ...

    ‘‘slow hot rolling’’ in direct linkage with thin slab and strip continuous casting, Steel Res. 74 (9) (2003) 549–561. [8] S.X. Zhou, An integrated model for hot rolling of steel strips, J.

  • (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 and computed values. The flow curves and

  • 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

  • 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 ...

  • 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 ...

  • 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-

  • 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)

  • 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.

  • Stainless steel lines SMS group

    Plus: here you get complete lines from one source with integrated electrical and automation systems. Line concepts. Hot-strip annealing and pickling lines Directly after hot-rolling, these lines anneal and pickle the strip before winding it into coils. ... This annealing and pickling line for stainless steel hot and cold strip is an integral ...

  • An integrated hot rolling and microstructure model for ...

    An integrated hot rolling and microstructure model for dual-phase steels D Bombac1,3,MJPeet1, S Zenitani2, ... hot rolling is applied while the steel is austenitic. Deformation ... In multi-pass hot strip rolling, residual strain (resulting in a stored energy) is, in individual passes, accumulated due to incomplete softening. ...

  • Strip shape control capability of hot wide strip rolling ...

    In that case a good strip shape is necessary for strip quality. Controlling hot wide strip shape at strip rolling is a difficult and significant problem. At present choosing the type of hot strip rolling mills and building the automatic control model of strip shape are the two main methods to control strip shape quality in hot rolling [l-41.

  • DeepDyve - Unlimited Access to Peer-Reviewed Journals

    DeepDyve is the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

  • Behaviour of oxide scales in hot steel strip rolling

    scales in hot steel strip rolling. 11th ESAFORM Conference on Material Forming, Apr 2008, Lyon, France. pp.Pages 1227-1230, ￿10.1007/s12289-008-0163-4￿. ￿hal-00510343￿ 1 INTRODUCTION

  • 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)

  • (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 and computed values. The flow curves and

  • 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 ...

  • An integrated hot rolling and microstructure model for ...

    An integrated hot rolling and microstructure model for dual-phase steels D Bombac1,3,MJPeet1, S Zenitani2, ... hot rolling is applied while the steel is austenitic. Deformation ... In multi-pass hot strip rolling, residual strain (resulting in a stored energy) is, in individual passes, accumulated due to incomplete softening. ...

  • Allegheny Technologies Inc. orders integrated hot rolling mill

    The rolling forces will be the highest ever to be applied in a hot-strip mill. The integrated facility is designed to produce a product mix for ATI Allegheny Ludlum that includes stainless alloys, grain-oriented electrical steel, titanium and titanium alloys, nickel-based

  • Highest performing Hot Strip Mills Primetals Technologies

    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 production. Since close to half of all steel produced is hot-rolled to strip, mills require maximum throughput and availability ...

  • Rolling (metalworking) - Wikipedia

    Hot rolling is a metalworking process that occurs above the recrystallization temperature of the material. After the grains deform during processing, they recrystallize, which maintains an equiaxed microstructure and prevents the metal from work hardening. The starting material is usually large pieces of metal, like semi-finished casting products, such as slabs, blooms, and billets.

  • Behaviour of oxide scales in hot steel strip rolling

    scales in hot steel strip rolling. 11th ESAFORM Conference on Material Forming, Apr 2008, Lyon, France. pp.Pages 1227-1230, ￿10.1007/s12289-008-0163-4￿. ￿hal-00510343￿ 1 INTRODUCTION

  • The Differences Between Hot and Cold Rolled Steel ...

    NOTE: Hot-rolling and cold-rolling should not be mistaken for different grades of steel. Steels of different grades can be produced as hot-rolled or cold-rolled. HOT-ROLLED STEEL. Hot-rolling refers to a mill process in which you roll the steel at a temperature above its recrystallization temperature; a heat that typically exceeds 1000° F.

  • Model for Mechanical Properties of Hot-Rolled Steels

    Hot rolled strips and plates occupy a large proportion of the total annual steel production in the world. A modern hot-strip mill can produce more than 6 million tons of steel per annum. The most attractive property of the hot rolling process is its ability to produce large quantities of product in a reliable manner at an attractive cost.

  • 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

  • Analysis of rolling load generated by pair crossed rolling ...

    Although a pair crossed rolling mill has a very high control capability of strip crown, a frictional force always occurs in the strip width direction between the strip and the work rolls. An analysis of rolling load was carried out, considering the shear deformation of strip cross-section caused by the frictional force.

  • A BASIC UNDERSTANDING OF THE MECHANICS OF ROLLING

    Secondary scale on hot strip and the impact on wear is another issue. Stresses from Hertzian pressure in 4-high cold mill back up rolls were measured years ago, the results were never published, but of high interest - also, maybe later. K. H. Schröder July 2003 K. H. Schröder: A BASIC UNDERSTANDING OF THE MECHANICS OF ROLLING MILL ROLLS

  • 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.

  • 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

  • Allegheny Technologies Inc. orders integrated hot rolling mill

    The rolling forces will be the highest ever to be applied in a hot-strip mill. The integrated facility is designed to produce a product mix for ATI Allegheny Ludlum that includes stainless alloys, grain-oriented electrical steel, titanium and titanium alloys, nickel-based

  • 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 all works.

  • 作者: thyssenkrupp
  • The Coefficient of Friction During Hot Rolling of Low ...

    Hot rolling tests were performed on low carbon steel strips with the objective of determining the coefficient of friction as a function of the process variables. The growth of the scale prior to rolling was controlled and the thickness of the layer of scale at the entry remained in the range of 20–100 μm, somewhat higher than in the ...

  • 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 are researched and given by dynamical changing the rough mill roll gap for SSC simulation and basing on infinite element method (FEM) analysis and results.

  • Mathematical modelling for rolling force and ...

    The proposed model has been used to characterise large reduction tandem hot rolling. There is good relationship between ferrite grain size of the hot strip and dislocation density. Then one can plan the best schedule to roll ultra fine grain strip considering strain, strain rate and rolling temperature. Also, the proposed model is general so ...

  • MATHEMATICAL-ARTIFICIAL NEURAL NETWORK HYBRID MODEL

    Accurate prediction of roll force during hot strip rolling is essential for model based operation of hot strip mills. Traditionally, mathematical models based on theory of plastic deformation have been used for prediction of roll force. In the last decade, data driven models like artificial neural network have been tried for prediction of roll ...

  • 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 160mm x 3m-4m Long (6.3" x 6.3" x 10-13 Ft.) 120mm x 120mm x 3m-4m Long (4.7" x 4.7" ...

  • Model for Mechanical Properties of Hot-Rolled Steels

    Hot rolled strips and plates occupy a large proportion of the total annual steel production in the world. A modern hot-strip mill can produce more than 6 million tons of steel per annum. The most attractive property of the hot rolling process is its ability to produce large quantities of product in a reliable manner at an attractive cost.

  • 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.

  • 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, and the relationship between the strength and the microstructure.

  • 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 GmbH, Eisenhüttenstraße 99, 38239 Salzgitter, Germany Abstract Models for the microstructure

  • stainless steel. microstructure, texture, thin strip ...

    Strip casting provides some basic metallurgical and commercial improvements compared to conventional steel sheet processing methods. First, it supplies a band with the same geometry as produced by hot rolling. This permits to bypass hot rolling. Second, the usually weak primary crystallographic texture of the cast strip reduces anisotropy.; Third, the high solidification rate leads to refined ...

  • Turn-Up and Turn-Down in Hot Rolling: A Study on a Model ...

    Turn-Up and Turn-Down in Hot Rolling: A Study on a Model Mill Using Plasticine S. A. E. Buxton and S. C. Browning Journal of Mechanical Engineering Science 1972 14 : 4 , 245-254