roll load roll torque mill

roll load roll torque mill

03 rolling of metals - SlideShare

03 rolling of metals - SlideShare

Aug 26, 2014· h P Q o 1 Suranaree University of Technology Jan-Mar 2007 P Roll gap Sheet thickness Rolling load hf ho Characteristic elastic and plastic curves for a rolling mill • For a given set of rolling conditions, the rolling load varies with the final sheet thickness, according to the plastic curve, which can be obtained in Eq10

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Fundamental concept of metal rolling - mtixtl

Fundamental concept of metal rolling - mtixtl

component P(rolling load -the load with which the rolls press against the metal) The specific roll pressure , p, is the rolling load divided by the contact area bLp P p= ,Eq3 Where b is the width of the sheet Lpis the projected length of the arc of contact ( ) ( ) [ ]( ) L R h

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US20160339492A1 - Motor speed control device for rolling ,

US20160339492A1 - Motor speed control device for rolling ,

A motor speed control device for a rolling mill, which includes a rolling roll that rolls a metal material, a roll rotation shaft directly connected to the rolling roll, a motor rotation shaft that transmits power to the roll rotation shaft, and a motor that drives the motor rotation shaft, includes: a non-contact type speed sensor arranged at a position close to the rolling roll with spacing ,

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Static Structural Analysis of Crushing Rollers of Three ,

Static Structural Analysis of Crushing Rollers of Three ,

drive torque, hydraulic load, crushing load is coming on the top roller The forces acting on the mill rolls give rise to shearing, bending, torsion and compressive stress The top roller is most highly stressed, since it consumes about half of the mill torque Out of total power 50% is taken by

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MaltMuncher MOTOR KIT - High Torque 1AMP PERMANENT ,

MaltMuncher MOTOR KIT - High Torque 1AMP PERMANENT ,

MaltMuncher High Torque Motor Kit for your mill with the big cool emergency off punch button This is a technical kit without instructions that will require some ingenuity on your part, but every thing should be pretty plain Look over the photos if you can cut wood, drill and insert wood screws you can do it Fits most 2 and 3 roller hand cranked roller mills Mounts to a board right next to ,

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Basics of Web Tension Control Summary

Basics of Web Tension Control Summary

1 = Nip roll velocity E = Elasticity of the material A = Cross sectional area of the material The larger the elasticity (E), the less likely the material is to stretch For most values of EA, use TORQUE CONTROL For stretchy material, where E is small, speed control can approach being as good as torque control

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Understanding Rolling Process in Long Product Rolling Mill ,

Understanding Rolling Process in Long Product Rolling Mill ,

Nov 27, 2015· The rolling sequence of a roll pass design is subject to the limitations applied by the rolling load, the roll strength and the torque available for rolling Roll pass design is also to ensure that the physical dimensions and material of the roll are capable of withstanding the heaviest loads arising during the rolling ,

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Roll Force Load Cells PFVL141 - Roll force measurement | ABB

Roll Force Load Cells PFVL141 - Roll force measurement | ABB

Annular load cell between the mill nut and the mill stand This version makes measurement possible even if the space under the mill screw and under the lower back-up roll bearing is insufficient This arrangement also has the advantage that there is no need to pay particular attention to the load cell during roll changing, and it is well protected

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Rolling processes - Al-Mustansiriya University

Rolling processes - Al-Mustansiriya University

Rolling processes 5-1 introduction: Rolling is the process of reducing the thickness or changing the cross section of a long workpiece by compressive forces applied through a set of rolls, as shown in figure (5-1) Fig (5-1) Most rolling is carried out by hot working, called hot rolling, owing to the large amount of deformation required

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THE MECHANICS OF TENSION CONTROL

THE MECHANICS OF TENSION CONTROL

Torque required to provide a certain level of tension to a web is total tension measured across the web times roll radius This means the torque driving the unwind shaft must decrease at a linear ratio, relative to roll diameter, as an unwind roll decreases in size, through a machine run, to keep tension constant Conversely, the torque driving the

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Mill load - roll force, torque, power during steel rolling

Mill load - roll force, torque, power during steel rolling

Online roll pass software for roll separating force , mill power and torque, based on rolling process models

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Experimental investigations of the roll load and roll ,

Experimental investigations of the roll load and roll ,

Aug 01, 2007· A standard roll forming mill is used to investigate the roll load and roll torque The mill has six forming stands and universal joint driven shafts are used to run the tools The power unit is a 15 kW frequency controlled three-phase motor No driven top shafts are used Download : Download full-size image; Fig 1 A standard roll forming mill ,

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The Calculation of Roll Force and Torque in Hot Rolling Mills

The Calculation of Roll Force and Torque in Hot Rolling Mills

Jun 01, 1954· 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 Although applying strictly to the rolling of ideal plastic-rigid materials, these equations may be applied to the ,

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Load Analysis and Driven Power Calculation (4 Roll Bending ,

Load Analysis and Driven Power Calculation (4 Roll Bending ,

First, the force parameters of the roll bending machine need to be confirmed, such as pressure on the roller, bending torque, and motor-driven power The load analysis of rolling machine can be reference data for designing parts of plate rolls The calculation of the main driven power of the plate roll bending machine is the key reference data ,

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Experimental investigations of the roll load and roll ,

Experimental investigations of the roll load and roll ,

Fig 1 A standard roll forming mill is used to do experiments, the roll load is measured with load cells and the roll torque is measured with a torque sensor during a forming of different steels Table 1 The ,

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Some Basics of Rolling and Rolling Mills – IspatGuru

Some Basics of Rolling and Rolling Mills – IspatGuru

May 30, 2013· Specific roll pressure – It is the rolling load divided by the contact area Rolling load – It is the load with which the rolls press against the metal Torque – It is the measure of the force applied to a member to produce rotational motion; Power – It is applied to a rolling mill by applying a torque ,

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Roll Torque - an overview | ScienceDirect Topics

Roll Torque - an overview | ScienceDirect Topics

The speed of the rolling mill is set at 10 rpm, giving a roll surface velocity of 7069 mm/s It was found necessary to use guides for the bars, both at entry and exit, in order to minimize sideways bending The parameters monitored during the experiments include the temperature, roll force and torque

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(PDF) Methodology for Calculation of Rolling Load and ,

(PDF) Methodology for Calculation of Rolling Load and ,

Methodology for Calculation of Rolling Load and Forces Acting On Herringbone Gear Using Hot Rolling Theory

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Method of load calculation of electrical drives of rolling ,

Method of load calculation of electrical drives of rolling ,

Jun 04, 2018· An improved calculation method for rolling pressure and load torque of electrical drive engine is suggested further This method considers peculiar strain of product in high deformation zones and its accelerated motion in reverse mode Improved analytical dependences for rolling pressure and load torque of electrical drive are reviewed

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Roll Force and Torque Prediction Using Neural Network and ,

Roll Force and Torque Prediction Using Neural Network and ,

torque are critical in steel rolling process They affect the mill set-up schedule, the thickness of the rolled product, and the final product profile Modern roll gap set-up and profile control demand accurate predictions of the roll force and torque under various rolling conditions There are many ways to predict roll forces and torque ,

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Mechanics of Cold Rolling of Thin Strip - IntechOpen

Mechanics of Cold Rolling of Thin Strip - IntechOpen

Mechanics of Cold Rolling of Thin Strip 443 where yiw is the vertical deflection of the work roll at element i, gijw (, ) is the influence function for the work roll deflection due to the combined bending and shear forces generated by rolling load, giwf is the influence function for the work roll deflection due to the force generated by the roll bending mechanism, k represents the minimum element

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How to Obtain Rolling Torque? | Metals | Metallurgy

How to Obtain Rolling Torque? | Metals | Metallurgy

The working roll diameter is 500 mm Determine the rolling load on the rolling stand if the co-efficient of friction is 007 Also determine the rolling torque Solution: Example 2: A billet of area of section 150 mm x 150 mm is rolled to 120 height in a rolling mill with 600 mm roll ,

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Rolling Force Prediction in Heavy Plate Rolling Based on ,

Rolling Force Prediction in Heavy Plate Rolling Based on ,

The plate rolling process is a complicated process with multiple variables, nonlinearity, and strong coupling Because of the complexity of rolling environment, such as the changes of material constant, friction coefficient, surface roughness of roller, roll wear, oil film thickness, and lubrication condition, the set calculation results of the rolling force, rolling torque, front slide, and ,

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Understanding Rolling Process in Long Product Rolling Mill ,

Understanding Rolling Process in Long Product Rolling Mill ,

Nov 27, 2015· The rolling sequence of a roll pass design is subject to the limitations applied by the rolling load, the roll strength and the torque available for rolling Roll pass design is also to ensure that the physical dimensions and material of the roll are capable of withstanding the heaviest loads arising during the rolling sequence

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Modified slab analysis of asymmetrical plate rolling ,

Modified slab analysis of asymmetrical plate rolling ,

Sep 01, 2002· The effect of roll speed ratio (or speed mismatch), v 2 /v 1 upon rolling force and rolling torque for different thickness reduction are shown in Fig 7, Fig 8, respectively It is indicated that both the rolling force and rolling torque decrease with increasing roll speed ratio, whereas, they increase with increase of the thickness reduction

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(PDF) Advanced Roll Bite Models for Cold and Temper ,

(PDF) Advanced Roll Bite Models for Cold and Temper ,

Cold rolling, temper rolling, thin strip, roll bite model, friction,mixed lubrication INTRODUCTION On industrial cold and temper rollin g mills, rolling thin hard strips proves very sensitive to f ,

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(PDF) Automated Procedure for Roll Pass Design

(PDF) Automated Procedure for Roll Pass Design

Jul 03, 2008· and/or the mill load (roll force, torque, power) Lateral spreading reduces the elongation and area reduction in the pass Hence, it is desirable to reduce lateral spreading as much

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Calculation of rolling pressure distribution and force ,

Calculation of rolling pressure distribution and force ,

Dec 01, 2014· Li Wei-gang, Tan Shu-bin, Li Jia-bo, et alModelling rolling force and rolling torque in a hot strip mill J Northeast Univ, 32 (5) (2011), pp 622-625 Google Scholar Mahdi Bagheripoor, Hosein BisadiApplication of artificial neural networks for the prediction of roll force and roll torque in hot strip rolling ,

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HOT ROLLING PRACTICE – An Attempted Recollection

HOT ROLLING PRACTICE – An Attempted Recollection

The layout of a rolling mill varies, from a simple single stand mill to several stands positioned either side by side or in a line A mechanism, commonly called a roller table, directs the work piece to the rolls, and another roller table for handling the pieces emerging out of the roll,

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