steel rolling mill motor design calculations

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  • steel rolling mill motor design calculations

    /pics/ steel rolling mill motor design calculations. Plates and sections are produced by rolling steel slabs, blooms or billets The material coefficients to be used in the design calculations for steel bridges are: Modulus of elasticity, E = 210,000 N/mm 2; Shear modulus, and may be obtained either direct from the mill, or through a steel stockholder.

  • steel rolling mill motor design calculations

    steel rolling mill motor design calculations. by calculations and adopted as standard values: D=108 mm and l=650 mm. The diameter of the shaft is d=30 mm. Figure 3. Roller and shaft assembly: 1 roller, 2 shaft, 3 bearing. 3.2. Drive unit One electric motor with suitable transmission arrangement is used to drive all the driven rollers.

  • steel rolling mill motor design calculations

    Roll Pass Design IspatGuru. Roll Pass Design satyendra June 18, 2014 0 Comments Long products, roll grooves, Roll pass, Roll pass design, rolling mill, rolls, sections, Roll Pass Design Long products are normally rolled in several passes, whose numbers are determined by the ratio of the initial input steel material (square or round billet or bloom) and final cross section of finished product.

  • How to Obtain Rolling Torque? Metals Metallurgy

    A 1000 mm wide and 2mm thick mild steel sheet is cold rolled to 1.5 mm thickness. The mean yield strength of the material of sheet is 25 kgf/mm 2. The working roll diameter is 500 mm. Determine the rolling load on the rolling stand if the co-efficient of friction is 0.07. Also determine the rolling torque.

  • steel rolling mill motor design calculations

    Steel rolling consists of passing the material, usually termed as rolling stock, .. of torque and power in a rolling mill is based on calculation of roll force. . of deforming steel is in many cases largely determined by the roll pass design. .. motor rpm (revolutions per

  • Rolling Mill an overview ScienceDirect Topics

    A Hille-100 rolling mill with rolls of 225 mm diameter and 254 mm length, driven by a variable speed DC motor of 75 horse power, was used. The maximum rolling force, torque and speed are 1500kN, 13kN-m and 70 rpm respectively.

  • 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.

  • Roll Pass Design and Mill Operation

    During this time we will cover the basics of metal deformation, the rolling of steel, and Roll Pass Design concepts. The course will provide the participants with the theoretical knowledge, practical skills, and confidence to deal with day-to-day roll pass, quality, and production issues.

  • Roll Pass Design IspatGuru

    Jun 18, 2014· Roll Pass Design. satyendra; June 18, 2014; 0 Comments ; Long products, roll grooves, Roll pass, Roll pass design, rolling mill, rolls, sections,; Roll Pass Design Long products are normally rolled in several passes, whose numbers are determined by the ratio of the initial input steel material (square or round billet or bloom) and final cross section of finished product.

  • Rolling processes Al-Mustansiriya University

    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

  • steel rolling mill motor design calculations

    Steel rolling consists of passing the material, usually termed as rolling stock, .. of torque and power in a rolling mill is based on calculation of roll force. . of deforming steel is in many cases largely determined by the roll pass design. .. motor rpm (revolutions per

  • Rolling Mill an overview ScienceDirect Topics

    A Hille-100 rolling mill with rolls of 225 mm diameter and 254 mm length, driven by a variable speed DC motor of 75 horse power, was used. The maximum rolling force, torque and speed are 1500kN, 13kN-m and 70 rpm respectively.

  • Steel Re-Rolling Mill: Basic TMT Rebar Production Course

    Roll pass design . 5. Rolling mill speed calculation . 6. Area, unit weight calculation. about physics, math, metallurgy. Who this course is for: Student of Mechanical Engineering, Maths, Physics and Steel Re-Rolling Mill Technicians, Supervisors etc; Reduction Rate Gear Ratio Mill Speed Mill RPM Motor RPM 3 lectures • 3min. Reduction

  • Roll Pass Design IspatGuru

    Jun 18, 2014· Roll Pass Design. satyendra; June 18, 2014; 0 Comments ; Long products, roll grooves, Roll pass, Roll pass design, rolling mill, rolls, sections,; Roll Pass Design Long products are normally rolled in several passes, whose numbers are determined by the ratio of the initial input steel material (square or round billet or bloom) and final cross section of finished

  • Calculation of Rolling Load and Torque in the Hot

    This paper presents a completely new approach to the mechanics of the Sendzimir hot planetary rolling mill. Previous work on this subject, by R. Tovini, included determinations for the distribution of the advance of the strip, the draft, the rolling load, the torque and the horizontal backthrust for the whole range of positions which the planetary rolls made, whilst contacting

  • Method of load calculation of electrical drives of rolling

    During manufacturing of heavy strips and plates from difficult-to-form steel grades on sheet and wide-strip rolling mills there is a problem of exact calculation of power parameters of rolling.

  • Rolling of Steel in a Modern Long Product Rolling Mill

    Jun 19, 2017· 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.

  • Load Analysis and Driven Power Calculation (Symmetrical 3

    In this post, the calculation of the force capabilities of symmetrical three-roll bending machine is one of the methods, the other types of plate rolling machine can take it for reference. Force Analysis 2.1 Maximum torque required for a cylinder rolling. When the plate rolling machine is working, the steel sheet should be rolled into the steel

  • Load Analysis of Rolls in a Rolling Mill: A Comparison of

    the operating load was well with in the design limit. Their investigation provided insights into the root causes and passed through the rolling mill six times. Each time the steel sheet was passed through the mill, it was 2.4 Calculation of roll load from the output voltage Specifications of the mill post Width, W 373.5mm

  • Rolling processes Al-Mustansiriya University

    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 and Mill Operation

    During this time we will cover the basics of metal deformation, the rolling of steel, and Roll Pass Design concepts. The course will provide the participants with the theoretical knowledge, practical skills, and confidence to deal with day-to-day roll pass, quality, and production issues.

  • The McDonald Mill Part II : Examples and Rolling Steel

    Steel Rolling Mill Plans. Examples and Additions to the Review. Building your own and about rolling steel: At 25 RPM with a 1 HP motor the final torque is ~2250 inch pounds. parts in the drive train. However, you need to understand drive ratios and be able to do the simple calculations required.

  • A brief history of metal rolling for sheet and plate

    A brief history of metal rolling for sheet and plate products. On the first day of our Aluminium Rolling Technology Course I run a session entitled “Machinery and Process Overview”. Part of this covers the history of metal rolling from the first known drawings of a mill to the state-of-the-art rolling equipment available today.

  • Calculating Mill Drive RPMs: Is Your Mill Up to Speed?

    Vice President Tube Mill Engineering Many "W" style mills that have the ability to shim up the bottom driven shafts in each section to maintain metal line after tooling is reworked, and are many times also equipped with a individual motor drive in

  • Rolling of Steel in a Modern Long Product Rolling Mill

    Jun 19, 2017· 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.

  • Method of load calculation of electrical drives of rolling

    During manufacturing of heavy strips and plates from difficult-to-form steel grades on sheet and wide-strip rolling mills there is a problem of exact calculation of power parameters of rolling.

  • Calculation of Rolling Load and Torque in the Hot

    This paper presents a completely new approach to the mechanics of the Sendzimir hot planetary rolling mill. Previous work on this subject, by R. Tovini, included determinations for the distribution of the advance of the strip, the draft, the rolling load, the torque and the horizontal backthrust for the whole range of positions which the planetary rolls made, whilst contacting the hot metal.

  • Load Analysis of Rolls in a Rolling Mill: A Comparison of

    the operating load was well with in the design limit. Their investigation provided insights into the root causes and passed through the rolling mill six times. Each time the steel sheet was passed through the mill, it was 2.4 Calculation of roll load from the output voltage Specifications of the mill post Width, W 373.5mm

  • 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

  • Steel and rolling mill industry VEM Group

    Drives in steel and rolling mills are exposed to extremely hard demands. Glowing steel, alternating operational modes and overloads spell out a high level of electrical and mechanical strain that calls for very sturdy designs. As a traditional supplier to heavy industry, VEM has developed over decades into a specialist for rolling mill drives.

  • The Complete Technology Book on Hot Rolling of Steel

    The hot rolling technology is the most widely used method of shaping metals and is particularly important in the manufacture of steel for use in construction and other industries. In metalworking, rolling is a metal forming process in which metal stock is passed through a pair of rolls. Rolling

  • Calculating Mill Drive RPMs: Is Your Mill Up to Speed?

    Vice President Tube Mill Engineering Many "W" style mills that have the ability to shim up the bottom driven shafts in each section to maintain metal line after tooling is reworked, and are many times also equipped with a individual motor drive in each of the three sections as illustrated below.

  • Teco-Westinghouse Custom DC Motors

    Rolling Mill Motors Used in the steel and aluminum industries, rolling mill motors generally operate at low speeds and are designed for constant torque with a speed range of up to four to one. Some applications include continuous cold mills, continuous hot strip mills, and reversing hot mills.

  • A brief history of metal rolling for sheet and plate

    A brief history of metal rolling for sheet and plate products. On the first day of our Aluminium Rolling Technology Course I run a session entitled “Machinery and Process Overview”. Part of this covers the history of metal rolling from the first known drawings of a mill to the state-of-the-art rolling

  • Hot Rolling an overview ScienceDirect Topics

    When hot rolling steel in the laboratory, using relatively small rolling mills, values of 4–20 kW/m 2 K appear to be the correct magnitudes. If modelling hot rolling of steel under industrial conditions, values of 50–120 kW/m 2 K are more useful. In both cases, the layer of scale is an important parameter.

  • Roll Pass Designing in Continuous Bar Mills

    Jul 29, 2010· Roughing mill 28” Roughing mill I1 to C4 Intermediate or stretching mill C5 to C10 Finishing mill 21-Apr-09 Ansar Hussain Rizvi 21-Apr-09 Ansar Hussain Rizvi The purpose of bar rolling is to obtain a long product through changing its shape at each stand.

  • (PDF) The Study of Continuous Rolling Mill Inter-stand

    The inter-stand tension inferential control systems are used to stabilize the rolling motor torque. To stabilize the motor torque the electric drive system with the properties of the rolling motor

  • Rolling of Metals: Process and Principles (With Diagram)

    The rolling process is shown in Fig. 2.1: Rolling is done both hot and cold. It is accomplishes in rolling mills. A rolling mill is a complex machine having two or more working rollers, supporting rollers, roll stands, drive motor, reducing gear, flywheel, coupling gear etc. Rollers may be plain or grooved depends upon the shape of rolled product.