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Mar 01, 2017· A mathematical model of friction coefficient was established to calculate the roll force during hot strip rolling process. Firstly, a linear regression model with four input variables was proposed to describe friction behavior, namely rolling speed, strip temperature, reduction rate, and the number of rolled strips since roll change. Then, the method of principal …

with machinery. Examples are paper machines, rolling mills and saw mill lines. Indefinite shape Materials with an indefinite shape, such as various food products, plastics etc., are processed with plant equipment. Examples of this kind of equipment are margarine stirrers, and different kinds of centrifuges and extruders.

Due to the growing importance of width control in strip and plate mills, edge rolling is currently an im-portant process in hot rolling mills. Research in edge rolling has been carried out, and in the present ar-ticle, models for roll force, torque, and lever arm coefficient are derived using the upper bound method. A simple, kinematically admissible deformation zone and velocity field ...

Calculation of driving power 3.1 Lower roller drive moment. The lower roller of the plate rolling machine is the driving roller, and the driving torque on the lower roller is used to overcome the deformation torque T n1 and the friction torque T n2.. In the process of steel plate rolling, the deformation capabilities which stored in AB section of steel plate (see Fig 1a and Fig 2) is …

Multi-pass Hot Rolling of Steels Multi-pass hot rolling is a general practice in the production of plates. An illustration of a plate mill, Fig. 1, is shown below to demonstrate how a series of processes are carried out to produce plates from steel slabs.

clearly and precisely defined. Of course, there are rules to calculate the maximum stress in rolls caused by design limits for maximum separation force, torque, Hertzian pressure etc, but these criteria are valid only under so called "normal rolling conditions" and even these change continuously with progressive wear in the contact zone.

A fast, reliable, and accurate mathematical model is needed to predict the rolling force, torque and exit temperature in the rolling process. Function of Paper: To propose an adaptable neural network model for a rolling mill

Nov 27, 2015· Calculation of roll force is important because calculation of torque and power in a rolling mill is based on calculation of roll force. Accurate prediction of roll force for grooved rolling is considerably more difficult than predicting the geometry of the rolling stock.

Feb 25, 2016· Calculation of roll force is important because calculation of torque and power in a rolling mill is based on calculation of roll force. Accurate prediction of roll force for grooved rolling …

Dynamic characteristic analysis of a two-stand reversible cold rolling mill in the startup process was carried out. The delay algorithm of the interstand thickness was proposed. A new method combined with the accelerated secant and the tangent methods was established to solve the simultaneous equations. The thickness and interstand tension transition processes with …

Jul 16, 2009· Schultz et al.: Determination of a Mathematical Model for Rolling Mill, Iron and Steel Eng., May 1965, p. 127/133. . If you want to use torque as your solved for variable, you will probably find the lever arm calculation method most easy to use. See 10-3 here. LEVERARM. from: Coldrollingbook. milo _____

Results of calculations and experimental studies of rolling torque in rolling mill 5000. Figures - available via license: Creative Commons Attribution 3.0 …

excell sheet calculation torque speed power for rolling mill. high performance hot rolling mills high . x pact for hot rolling mills pools our special process . emergency power generators, usv plants as well as seen from the ...

Rolling versus slitting. Fig. 3. Sheet mill with small work ... dom used because it was introduced recently into rolling technique. Torque and Power to Drive the Rolls To perform the rolling operation, it is necessary to drive the rolls. ... For the torque calculation the values of …

Basics of Web Tension Control Summary Presenter: Darrell Whiteside, Sales Channel Manager – Tension Control Maxcess International This presentation is intended to take the mystery out of web tension control.

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.

clearly and precisely defined. Of course, there are rules to calculate the maximum stress in rolls caused by design limits for maximum separation force, torque, Hertzian pressure etc, but these criteria are valid only under so called "normal rolling conditions" and even these change continuously with progressive wear in the contact zone.

introduction theory of plasticity rolling mill rolling forces tribology mathematical modeling of rolling temperature effects on rolling recrystallization roll torque roll power influence of physical quantities other types of rolling –temper, acumulative, flexible results and future comparison computational simulation conclusions

plate mills and cold strip mills and the areas of application are still increasing. Research has focused on analyzing the rolling load or rolling torque generated by pair cross mills [7, 8], and on the strip profile control capability of the roll crossing mill[9], and so forth.

May 17, 2020· The spread sheet performs an iterative calculation based on pre-start load inputs and starting motor data. Detailed analysis may be performed with the help of available softwares. Notes: Motor starting analysis are generally performed for …

In and torque in case of shape rolling. In this method roll the present work experimentation was carried out with the help of strain gauges and strain indicator. Strain gauges of 200 ohms each were fixed on rolling mill housing. During rolling operation housing of mill …

Basics of Web Tension Control Summary Presenter: Darrell Whiteside, Sales Channel Manager – Tension Control Maxcess International This presentation is intended to take the mystery out of web tension control.