rolling mill power calculation

Large AC Adjustable Speed Motors for Metals Rolling …

technology for rolling mill applications. As a result, TMEIC provides customers with an unparalleled choice of technology, including: 1. Proven AC drive solution for each type of rolling mill application, ranging from large torque, slow-speed roughing mills to the high-speed, wide tension range aluminum foil mills. 2.

Calculating Power Parameters of Rolling Mill

The calculations of power parameters for rolling profiles of various assortments on a five-stand mill have been performed. The correspondence of the calculated and …

Integrated scheduling of hot rolling production …

This paper studied the integrated scheduling research of production operation and power demand response for the steel rolling process in the steel industry. Due to the nonlinear coupling between hot …

Numerical Investigation of Vertical Roller Mill Operation …

The mill speed and filling were varied, and the torque required to drive the mill and power was predicted. ... Roller speed is measured during the simulation to calculate the rolling point. The rolling point shall predict the location of high-pressure zone in the grinding table .

Power requirements of rolling mills

The increasing use of electric motors for driving the main rolls in modern steel works, makes the question of the power requirements of rolling mills of conside

An improved method for calculating roll deformation of six-high rolling

The roll deformation model of the six-high rolling mill is one of the core models of the strip shape control theory. The influence function method (IFM) is a numerical method applied to solve the roll deformation problem. This study aims to address the problems of slow calculation speed and insufficient calculation accuracy of IFM in …

Roll Pass Design Methods for Three- and Four …

The paper deals with the models for a pass design calculation as well as a calculation of roll force and power demands for the rolling mill. On modern bar and rod mill, different types...

Modeling of Torque, Power and Energy of Cold Rolling …

The material properties of the strip play a vital role in the power consumption and the damage evolution in a tandem cold rolling mill. Therefore, the strip tearing or power consumption level of ...

A Calculation Procedure and Optimization for Pass Scheduling in Rolling

The calculation process was programed and applied in the control system of one 1450 mm cold tandem mill successfully, the prediction results was in good agreement with the actual measured ones ...

Principles of Hot Rolling

front to back during rolling through the Finishing Mill. ROLLING POWER REDUCTION: Power reduction of 13% on average equating to an energy savings of about 6% (Stelcostatistics). COBBLE REDUCTION: Coils can be held for short delays and cooling is minimized. Making, Shaping and Treating of Steel: 101 COIL BOX

Fundamentals of Roll Cooling and Control of Flatness at …

Because of the current demands on mills to process much lighter exit gauges from increased incoming hot strip thickness, much larger reductions are necessary on individual mill stands, such high reductions at a nominal width result in a larger area of contact with corresponding higher rolling force, friction and heat generation (see Fig 1

OptiMill™ optimize your cold rolling process

Your №1 assistant software. OptiMill™ gives access to the main parameters, such as tension, speed, rolling force, mill power, tension reel power, mill torque and neutral coefficient, and guides your operators to make the most efficient operating decisions. For example, thanks to the calculation of the roll geometry, you can choose the best …

Principles and Applications of Metal Rolling

Summary: "Discusses the entire gamut of rolling process and the practices followed in rolling industry and operation and use of various rolling mill equipment and systems"-- …

(PDF) CALCULATION OF ROLLING FORCE IN THE HOT STRIP FINISHING MILL

PDF | On Jan 1, 2020, Antonio Adel dos Santos and others published CALCULATION OF ROLLING FORCE IN THE HOT STRIP FINISHING MILL USING AN EMPIRICAL MODEL | Find, read and cite all the research you ...

Modelling and Optimisation for a 20High Cold Rolling Mill

Besides the special effort to describe the force, power and torque calculation, the paper also introduces the model for the description of the mill stand behaviour and the interaction with the strip. Results obtained in an on-line application are presented. ... Due to the complexity of 20high rolling mills, the reproducibility of the fmal ...

Maintenance for productivity Rolling models

Single and multistand Mills Cluster and Sendzimir*) Mills Inline and continuous rolling mills Reversing and non-reversing Reduction, skin-pass, double cold reduction (DCR) and foil rolling Steel, stainless, aluminium, copper and brass for a wide range of end products The task of the rolling model is to supply the appropriate setup-values to the ...

Introduction to Rolling Process

The entire assembly of the rolls mounted on bearings is held in bearing blocks (called chocks), which in turn are held between the gaps of two cast frames (called housings), …

Looper and tension control in hot strip finishing mills based …

The looper control of hot strip finishing mill is one of the most critical control items in hot strip rolling mill process. It is a highly complex nonlinear system, with strong states coupling and uncertainty that present a difficult control challenge. Loopers are placed between finishing mill stands not only to control the mass flow of the two stands but also …

How to Obtain Rolling Torque? | Metals | Metallurgy

Except for bloom rolling and slab rolling stands, the power from motor goes to gear box for speed reduction and then to pinion box for distributing the power between two rolls (Fig.7.14). In slab rolling and bloom rolling mills, no gear box is used, motors are connected directly to rolls through universal couplings.

Ball Mill Design/Power Calculation

The basic parameters used in ball mill design (power calculations), rod mill or any tumbling mill sizing are; material to be ground, characteristics, Bond Work Index, bulk density, specific density, desired mill tonnage capacity DTPH, operating % solids or pulp density, feed size as F80 and maximum 'chunk size', product size as P80 …

The calculation of rolling force

Factors which influence the rolling force Yield strength. The main factor influencing the rolling force required to reduce the thickness of strip in a rolling mill is the yield strength of the material being rolled. …

Rolling

A two-high non-reversing rolling mill (shown below) with 750 mm diameter rolls made of tool steel is available for this task. The rolling mill has a power capacity of 5 MW per roll. The …

Understanding Rolling Process in Long Product …

A wire rod rolling mill, for example, gradually reduces the cross-sectional area of a starting billet (e.g., 150 mm square, 10-12 meters long) down to a finished rod (as small as 5.0 mm in diameter, 1.93 km …

Introduction to Rolling Process

2 Principles and Applications of Metal Rolling (ii) Shape of the rolled product- flat, sections or hollow sections rolling. (iii) Direction of rolling- lengthwise, transverse, and skew rolling. (iv) Mode of rolling mill operation- continuous (unidirectional), and reverse rolling, where direction of rotation of rolls are reversed. When two rolls of equal diameter and …

Load Analysis and Power Calculation for 4 Roll …

f – Coefficient of rolling friction, f ＝0.8mm; μ – Sliding friction coefficient of the roller neck, μ＝0.05-0.1； d a, d b, d c are the roller neck diameter of the upper roller, lower roller and side roller separately. …

ROLLING

Power per roll (SI units)= πFLN/ 60,000 kW ... is 300 mm, and the rolls rotate at 100 rpm. Calculate the roll force and the power required. For annealed copper, it has a true stress of about 80 Mpa in the unstrained condition and at a true strain of 0.223, true stress is 280 Mpa. FOUR HIGH ROLLING MILL. PROBLEMS AND DEFECTS IN ROLLED ...

The Calculation of Roll Force and Torque in Hot Rolling Mills

Equations are derived for the normal roll pressure, specific roll load and torque in hot rolling mills, using the condition for plastic deformation in rolling derived by Orowan, together with von Kármán's equation of equilibrium.

(PDF) "Power in Rolling-A Review" | IRJET Journal

On the basis of classic rolling-theory, during manufacturing of rolling-based products and to develop a new rolling mill there is a problem of accurate calculation of power parameters of rolling. its necessary to calculate power parameters an improved calculation method for rolling pressure and load torque for proper production and …

The Power Consumption Optimization for Thin-Sheet Rolling …

The modeling of the current rolling schedule has shown that an increase in the decoiler tension from 0.01 (the currently effective value) to 0.2, with respect to the resistance of the metal to deformation, allows for a reduction in the power consumption for rolling on a 1200 reversing mill from 108.5 to 92.5 kW h/t, i.e., by ~15%.