steel rolling mill motor design calculations

steel rolling mill motor design calculations

  • steel rolling mill motor design calculations

    steel rolling mill motor design calculations; Bar Rolling Mill Solution Hani Tech. Each unit is composed of six short stress rolling mills arranged alternately by horizontal rolling mills and vertical rolling mills, of which the 16th and 18th are horizontal-vertical convertible mills, and each stand is driven by a DC motor alone. The whole

  • steel rolling mill motor design calculations

    Roll Pass Design ispatguru . Jun 18, 2014 Roll pass design also includes the calculation of pressing forces and The roll passes are designed to avoid excessive stresses in the steel being rolled, rolling speed, available power of the drive motor, and available mill

  • by Umut Hanoglu Supervised by Prof. Božidar Šarler

    ROLLING MILL ROLLING FORCES Heated up to 1200 –1250 C for steel, 500 –550 C for aluminum Removing cast dendrite structures Dissolving most of alloying elements Roll separating force is the main goal in calculations in N/mm They are related in all mathematical models

  • Rolling Mill an overview ScienceDirect Topics

    A d.c. rolling-mill motor operates on a speed-reversing duty cycle. For a particular duty, the field current is maintained constant and the speed is reversed linearly from + 100 to −100 rev/min in a

  • Rolling of Steel in a Modern Long Product Rolling Mill

    Rolling of Steel in a Modern Long Product Rolling Mill Long product is a common name for (i) reinforcement steel bars, (ii) shaped steel bar products such as rounds, flats, squares, and hexagon etc., (iii) sectional products such as angles (equal and unequal), channels, beams, tees, and special profiles etc., and (iv) wire rods.

  • Motors for Metal Rolling Mills TMEIC

    AC adjustable speed motor drive systems are the preferred technology for new rolling mill installations and modernization projects. TMEIC designs and manufactures two types of AC solutions for this purpose. Salient pole synchronous motors that meet the high power and torque demands of a hot strip mill, as well as roughing and finishing stands.

  • The Hot Rolling Process California Steel Industries, Inc.

    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.

  • Rolling processes uomustansiriyah.edu.iq

    Figure (5-2) illustrates the sequence of steps in a steel rolling mill to show the variety of products made. Similar steps occur in other basic metal industries. The work starts out as a cast steel ingot that has just solidified. While it is still hot, the ingot is placed in a furnace where it remains for many hours until it

  • Roll Pass Design IspatGuru

    Jun 18, 2014· Roll pass design is an essential part of long product rolling process, since the long products are rolled between the shaped rolls in the long product rolling mills. Roll pass design generally means the cutting of grooves in the roll body through which steel to be rolled is made to pass sequentially to get the desired contour and size. The

  • Designing a Rolling Mill Machinery General Discussions

    Jan 07, 2014· I once saw a book on rolling mill design that had the angle of reduction/HP calculations in it. For the most part, it's hard to feed steel into a mill if the roll bite angle gets bigger than 15 degrees. Advantage: big rolls means it's easier to take a bigger bite. However, you've got two ways around this problem. Designing a Rolling Mill

  • After playing around with the idea of getting a power hammer or press, I've decided that a far more sensible idea would be to make a rolling mill,...Some where on the web there are details from an Australian smith who has already designed a set of rollers, it may be worth checking them outThis is the chap Link removed at the request of that sites owner. He does not want linking to his site.Thanks Wayne, I'll be getting a copy of that soon. No need to reinvent the wheel, although this section will likely change from the design based on...Based on my experience of 45 years ago when working in the alloy bar mill at US Steel's South Works in Chicago the one thing that you absolutely wa...that is why many wheel rollers have foot switches so they can be controlled and stopped by moving ones foot off the foot bar and the machine stops...Have you looked into just buying a used rolling mill? There is a ton of used equipment on the market. I averaged 10 cents on the dollar for my mach...Have you looked into the mcdonald rolling mill plans? just google it.I am pretty sure the McDonald plans have the stock feed towards you. This is MUCH safer than rolls that pull away from you. I just read on here or...This one is designed to feed it towards you, as much for practicality's sake as safety. I've had some feedback from others about this, who have poi...
  • Designing a Rolling Mill Machinery General Discussions

    Jan 07, 2014· I once saw a book on rolling mill design that had the angle of reduction/HP calculations in it. For the most part, it's hard to feed steel into a mill if the roll bite angle gets bigger than 15 degrees. Advantage: big rolls means it's easier to take a bigger bite. However, you've got two ways around this problem. Designing a Rolling Mill

  • PROCESS OF ROLLING MILLS

    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. design. Rolls are the tools of the rolling mill and are

  • AC Replacement for DC Mill-Duty Motors

    or many years, DC mill auxiliary motors for steel mill applications such as screwdowns, shears, tables and sideguides were specified as “mill duty.” They are of an extremely rugged design based on AIST dimensional and rating standards, and are therefore interchangeable between motor manufacturers. Many

  • HOT ROLLING PRACTICE An Attempted Recollection

    In hot-rolling of steel, the temperature in the ultimate finishing stand varies from 8500 C design. Hot rolling permits large deformations of the metal to be achieved with a small number of rolling This is the starting point of the hot rolling mill practice.

  • A BASIC UNDERSTANDING OF THE MECHANICS OF ROLLING

    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. Besides “normal rolling conditions” a stable, theoretical assumption mills experience many different

  • Roll pass design in continuous bar mills SlideShare

    May 18, 2015· Roll pass design in continuous bar mills 1. African Foundries Ltd. Lagos, Nigeria Presented by Rahul Kishore 2. Basics of Rolling A rolling mill consist of several, at least two rolls cylindrical or nearly cylindrical bodies which are termed as “roll” and which rest in bearings at their ends. The normal and average center distance from the center of one roll to the center of o

  • (PDF) Speed Control of Steel Rolling Mill using Neural Network

    In this paper a fully neural network-based structure have been proposed to control speeds of rolling stands of a steel rolling mill. The structure has property of controlling the motors speed such

  • Building a rolling mill, step by step. WIP BladeForums

    Jan 07, 2010· Building a rolling mill, step by step. WIP Discussion in 'Shop To be honest your design is so straight forward it was fairly easy to reverse engineer from the pictures. Thanks again for the pictures! Not bad at all! It will work better for my needs and cost way less than a Mcdonald rolling mill. my rolling mill will only see steel in

  • Roll Pass Design-1 || Rolling mill || steel making

    Feb 08, 2019· Hello friends, in this video I have discussed about the roll pass design of rolling mill and it's various key features. This is the first part of video next is coming tomorrow. Tags:-roll pass

  • Durham E-Theses Rolling mill roll design

    calculation of each parameter is different for each set of different application conditions. 6.5 Evolution of the Matrix-based Rolling Mill Roll Design 6.5.1 Hierarchical Classification System 7.4.1 Setting up the Matrix for Section Rolling Roll Design 7.4.2 The Function of Rows in Matrix-based Section Roll Design

  • Roll Pass Design YouTube

    Mar 09, 2018· Watch how an optimum roll pass design leads to the distribution of loads across rolls, ensuring better rolling quality and reduction in specific power consumption. United Nations Development

  • Powerful gears in rolling mills Machine Design

    Motors & Drives; Powerful gears in rolling mills. After many years of service, the gears in a hot-strip rolling mill must be replaced. But, the new gears face a dual challenge

  • Rolling Mill Quad Infotech Inc.

    QMOS Rolling Mill Production module manages the flow of information from the time billets and blooms are charged into the reheat furnace up to the end of the cooling bed. During this process, all process information is gathered and recorded throughout the mill and production and performance metrics are made available in real time.

  • FUNdaMENTALS of Design

    The performance of a rolling element bearing is a function of the accuracy with which it is made; and the most accurate rolling element bearings are made on machines that use fluid films. In fact, the first machines used to grind rolling element b earing components used hydrodynamic bearings, where

  • Powerful gears in rolling mills Machine Design

    Motors & Drives; Powerful gears in rolling mills. After many years of service, the gears in a hot-strip rolling mill must be replaced. But, the new gears face a dual challenge

  • 4-High Rolling Mills Metal Processing American Steel

    This is becoming common whether a 2-high, 4-high, 6-high, or cluster mill. Before dual motor drives, rolls had to be ground the same diameter. If one roll needs to be ground, the opposing roll must be ground at the same diameter. Four-high mills are very common for steel, aluminum, copper, and any high production metal rolling.

  • AC Replacement for DC Mill-Duty Motors

    or many years, DC mill auxiliary motors for steel mill applications such as screwdowns, shears, tables and sideguides were specified as “mill duty.” They are of an extremely rugged design based on AIST dimensional and rating standards, and are therefore interchangeable between motor manufacturers. Many

  • Rod Mill Design Calculations

    The mill diameter, low or high ratio of reduction, and oversize feed factors also must be applied to the calculated grinding power. When calculating rod mill power for a rod mill-ball mill circuit, do not allow for improvement in the ball mill performance due to receiving rod mill feed.

  • Roll Pass Design YouTube

    Mar 09, 2018· Watch how an optimum roll pass design leads to the distribution of loads across rolls, ensuring better rolling quality and reduction in specific power consumption. United Nations Development

  • Flying shear / cut to length dividing shear

    The shear initiates the cut after the time interval T, corrected for the dressed diameter and dip in the motor rpm on load. V = Velocity of the bar is 3.142 x D x N D = Dressed roll dia, fed into the MMI N = Actual motor RPM, data given by the finishing mill encoder. This data is correct for the dip in the motor rpm on load for improved accuracy.

  • Load Analysis and Driven Power Calculation (Symmetrical 3

    Load Analysis and Driven Power Calculation (Symmetrical 3 Roll Plate Bending Machine) 28 Comments / Rolling. When rolling steel plate, the force condition is shown as below figure. if we want to make the pipe of 25 to 50 mm diaom 1.5- 2 mm sheet thickness,and also please tell us about other design calculations like speed of roller

  • Shears for Steel Mills Rolling Mill Equipment GMB

    Steel mills use Flying Shears for cutting profile metals and bars during the rolling mill process. These can be fully automated with a motor and a heat sensor depending on the application. Custom designed Flying Shears can be semi-automatic or fully automatic depending on customer needs. Steel mills choose to have Flying Shears custom designed

  • Strip Width Calculation for Tube Mills, Pipe Mills and

    Disclaimer. The above information is an estimate only and should be treated as such. Due to different variables on different mills, the width(s) calculated are strictly approximate and should be proven out before ordering an abundant supply.

  • Ensuring quality control at America’s largest steel mill

    Archive; Ensuring quality control at America’s largest steel mill. Replacing digital linear encoders with magnetostrictive sensors reduces downtime and guarantees on-spec steel products.

  • Rolling mill speed calculation formula pdf

    Rolling mill speed calculation formula pdf Example:Calculate the rolling load if steel sheet is hot rolled 30 from.Even faster speed will result in the media centrifuging inside the mill and virtually no milling or movement of media. Calculating Jar and Jar Rolling Mill Speedthe design of rolling mills, it is necessary for a theory

  • TMT Continuous Rolling Mill YouTube

    Oct 15, 2016· Continuous rolling mill

  • pass design for channel section in rolling mill

    Home pass design for channel section in rolling mill. Roll Form Design Roll Forming Design Capability to manufacture Hot Rolling Mills for Rolling of Stainless Steel, Alloy Steel and Copper as per specific needs of customers. Facility to make Roll Pass Design for rolling of all sections, rolling special profiles and railway tracks etc.

  • 3 Roll Bending Machine (Working Principle and Rolling

    Jan 10, 2018· 3 Roll Bending Machine Working Principle Roll bending machine has also been called rounder and roller machine, which is universal forming equipment for rolling metal plate into the cylinder, cone, curved and other shapes.