MODELING AND CONTROL OF PLATE THICKNESS IN …

MODELING AND CONTROL OF PLATE THICKNESS IN HOT ROLLING MILLS Roland Heeg∗,1 Andreas Kugi∗ Olivier Fichet∗∗Laurent Irastorza∗∗∗Christophe Pelletier∗∗ ∗Chair of System Theory and Automatic Control, Saarland University, PO Box 151150, 66041 Saarbrücken, Germany ∗∗AG der Dillinger Hüttenwerke, PO Box 1580, 66748 Dillingen, …

The Hot Rolling Process - California Steel

finishing mills, which will roll the steel in tandem with one another. The workhorse roughing mill has 135" wide rolls for rolling 'broadside' (as the first roughing mill is commonly called) to make a slab wider. A 5,000 hp motor drives 42"-diameter work-rolls through 28:1 gears to reduce the slab's thickness by as much as 2-½".

(PDF) MODELLING AND CONTROL OF A HOT ROLLING …

Pedersen, L., Modeling and identification of hot rolling The last figure (Fig. 10) shows simulation results for mill. ln proc. of the American Control Conference. the rolling force for a FFF control and optimal control 3674-3680 (1995). It is important to note that the control objective is the output thickness (Fig. 7).

Dynamic modeling and numerical analysis of a cold rolling …

The dynamic characteristics in a rolling process have been investigated with various methods, but a mathematical model to predict actual chatter vibration has not been established. In this paper, we propose a mathematical model of a cold rolling mill to predict chatter vibration. The mathematical model was verified by experiment and theoretical analysis. The chatter …

Modeling for HAGC Press System of Rolling Mill ...

Hydraulic automatic gauge control press system is one of the key techniques of modern rolling mills. Its mathematical model is important for directly determining the quality of cold rolling strip. The sketch of hydraulic automatic gauge control …

Lab Rolling Mill - International Rolling Mills

IRM MODEL # 4060. LAB ROLLING MILL ON A BASE. Both rolls are driven by a heavy-duty pinion stand. The roll position is adjustable either independently or simultaneously. Powered by a 5 HP DC motor, the separating force of the mill …

N Scale United Engineering & Foundry Company Rolling …

Scale model of a massive steel casting rolling mill stand produced by United Engineering & Foundry Company (later Mesta Machine) out of New Castle Pennsylvania circa 1940s.. Other items in photos shown for size comparison - Not included. Scale model is for display and operating model railroad load / modelling and is not a child's toy.

Dynamic modelling and simulation of a hot strip finishing …

Hot rolling is an essential industrial process in the production of sheet steel, a widely used product in manufacturing and construction. A finishing mill performs a set of operations in a hot strip rolling mill, and is a complex unit including many processes and control loops. Its modelling is a challenging task due to the variety of phenomena ...

Modelling of the High-Energy Ball Milling Process

In this paper, the milling parameters of high energy ball mill (Fritsch Pulverisette 7) like vial geometry, number and size of balls and speed of the mill were modelled and discussed. Simulations through discrete element method (DEM) provide correlation between the milling parameters. A mathematical model is used to improve and develop this process.

Rolling Mills | Metal Rolling Mill Machine | …

Two-High: Generally, a 2-HI mill is used for hot or cold breakdown and finishing of bar, sheet or strip. A wide range of sizes with separating force capacities from 10,000 lbs. (4.53 MT) to over 3,000,000 lbs. (1360 MT) are available. Three …

Innoval Rolling Model - Innoval ... - Innoval …

Our aluminium rolling model is a physics-based model which predicts rolling loads, motor power and torque, roll gap friction, strip and roll temperatures and strip profile and flatness. It can be adapted to run on-line, working in …

Original Article Simulation Model of Cold Rolling Mill

material [2]. Cold rolling mills work over a wide range of speeds, tensions, thicknesses and their dynamics are nonlinear and fluctuate with time. In the tandem cold rolling mill process, there are number of possible inputs and outputs [3]. The cold rolling of strip is individual process in a

Rolling Process: Working, Application, Defects, Type of ...

5. Cluster Rolling Mills: In this type of rolling mill, there are two basic roles that are backed up by two or more rolls which are bigger than those two basic rolls. These backed up rolls give more pressure to the basic rolls to heavily press the strip.

Modeling and control of a four-high heavy plate rolling mill

Argentina, 1995 MODELING AND SIMULATION OF A SEAMLESS STEEL TUBE ROLLING MILL Lage Andres, Fullana Rogelio Carelli Ricardo Instituto de Automatica -Universidad Nacional de San Juan Av. San Martin 1109 (0) 5400 -San Juan -Argentina Phone: +54 64 21 3303, Fax: +54 64 21 3672 e-mail: [email protected] Abstract: This paper …

Rolling horizon based planning and scheduling integration ...

The rolling horizon method has been proposed to address the integrated production planning and scheduling optimization problem. Since the method can generally result in small-scale optimization model and fast solution, it has been used in a number of applications in realistic industrial planning and scheduling problems.

Modelling the strip thickness in hot steel rolling mills ...

Modelling the strip thickness in hot steel rolling mills using least-squares support vector machines Yuri A. W. Shardt, Department of Chemical Engineering, Faculty of Engineering, University of Waterloo, Waterloo, ON, Canada and Institute of Automatic Control and Complex Systems (AKS), University of Duisburg-Essen, Germany

Maintenance for productivity Rolling models - ABB

Roll-gap model The roll-gap model is further differen-tiated into a model for reduction mills and for skin pass / temper mills / foil mills. For reductions of more than about five percent and a larger ratio be-tween the mean gauge und contact length, a roll-gap model based on the classical circular arc theory of Ford, Ellis and Bland is used.

Modeling and Control of Multi Stage Rolling Mill Process ...

Modeling and Control of Multi Stage Rolling Mill Process. Sheet Rolling Mill processes involve progressive thickness reduction of continuous sheet metal in multiple stages. Some of the control variables of interest are exit thickness, throughput and the tension in the sheet as it passes from one stage to the other.

MODELLING AND CONTROL OF A HOT ROLLING MILL

Latin American Applied Research 36:199-204 (2006) 199 MODELLING AND CONTROL OF A HOT ROLLING MILL F. G. ROSSOMANDO† and J. DENTI FILHO‡ †Coordenadoria da Mecânica, CEFETES, CEP 29040-780 ...

Rolling Mills | Precision Jewellery Mills | Durston …

The Manual Rolling Mill was the very first product produced by Durston Tools, we have expanded this product line over the years and now offer a huge range to suit the needs of Creators to Specialist Jewellers. Our Manual …

HO Scale United Engineering & Foundry Company Rolling …

Accurately modeled and finely detailed massive steel casting model Great for your industrial steel mill / casting mill model or well flatcar load Manufactured in USA Size Approx 55.6 x 22.8 x 85.7 mm (LxWxH) [2.2 x 0.9 x 3.4 inches] Ready to run, or for best results, paint for a metallic look Scale model of a massive

quality, a powerful controller is need- Rolling mill simulator

Rolling mill simulator A new platform for testing, analysis and optimization of cold rolling mills. Axel Brickwedde, Frank Feldmann, Nicolas Soler The cold rolling of flat metal products especially in tandem or multi-stand mills is a highly complex process where the product quality is influenced by various aspects.

Finite Element Simulation of Hot Rolling for an …

model for hot rolling of large rings. Benasciutti D. et al. (2010) proposed a simplified numerical approach based on finite element to compute thermal stresses occurring in work roll of hot rolling mills. Chumachenko E. N. et al. (2010) discussed the finite-element modeling of rolling in passes based on the 2D method.