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Roll Pass Design IspatGuru

Jun 18, 2014 Roll Pass Design. satyendra; June 18, 2014; 2 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

Effect of pass schedule and groove design on the metal

using an FEM model during the initial passes in a blooming mill, as a function of three different pass schedules, roll groove depth, collar taper angle and corner radius. The simulations predicted the effective strain penetration, load, torque, fish tail billet end shapes, and metal flow behaviour at a chosen temperature, mill rpm and draft.

Computer-aided roll pass design for continuous billet mill

Newton’s substitution method has been used to solve the equation. With known reduction between consecutive passes, geometrical dimension of square and diamond passes are computed. A model has been used to calculate pass design of a finishing train of a continuous billet mill producing 60 mm square billet from 120 mm square bloom.

(PDF) Roll Pass design for hot flat rolling of plain

The starting point in roll pass design is to draw up the pass schedule which indicates the forms of the passes required to obtain the given profile. At the same time, the number of passes is established, as are the draught for each pass, the sequence and number of turns, distribution of the passes among the mill stands etc.2.1.

Fundamentals of Rolling ScienceDirect

This book discusses as well the different types of rolls for various rolling mills, including blooming, plate, sheet, sheet bar, small section, heavy product, skin passing, and cold rolling mills. The final chapter explains the purpose of roll pass design to ensure the maximum output at minimum cost as well as to reduce the roll wear to a minimum.

Fundamentals of Rolling 1st Edition Elsevier

Oct 22, 2013 This book discusses as well the different types of rolls for various rolling mills, including blooming, plate, sheet, sheet bar, small section, heavy product, skin passing, and cold rolling mills. The final chapter explains the purpose of roll pass design to ensure the maximum output at minimum cost as well as to reduce the roll wear to a minimum.

Rollpass Design Solutions

Roll Pass Design for TMT from 130 *130 mm in 19 pass design: 38: Bhawani Moulders, Raipur: Roll Pass Design for ISMC,ISJC and Superlite channels 75 & 100 mm in continuous structural mill: 39: Graphite India Limited Powmex Steel Division, Titlagarh,Orissa: Audit and Consultancy for production improvement and Roll Pass Design for the development

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

A BASIC UNDERSTANDING OF THE MECHANICS OF ROLLING

As regards “abnormal” rolling conditions which are more or less very “normal” for rolling mills roll damage often occurs with consequences for the mill and the rolled product. Evidently the reasons of roll failure have to be discussed and determined (or vice versa) to reduce the risk of repeated roll damage and

Blooming Mill Article about Blooming Mill by The Free

The design of the majority of plants producing section-shaped rolled products corresponds to the traditional layout: the blooming mill—continuous billet mills—shaping mills. The leading unit of the shaping cycle is a two-high reversing blooming mill; hence, the capacity of the entire cycle is determined by the productivity of the blooming mill.

Computer-aided roll pass design for continuous billet mill

Newton’s substitution method has been used to solve the equation. With known reduction between consecutive passes, geometrical dimension of square and diamond passes are computed. A model has been used to calculate pass design of a finishing train of a continuous billet mill producing 60 mm square billet from 120 mm square bloom.

Roll Pass Design Schweitzer Rolling Technology

Roll Pass Designs projects typically follow the following timeline: Development of detailed groove drawings, roll barrel layouts, roll stress calculations, rolling power, torque and separating force predictions, and roller set-up sheets. Design review and training sessions with mill personnel

Computer-aided roll pass design for continuous billet mill

of pass filling and pass rounding which was considered in the above model. 4.1 Roll pass design A model has been used to design roll passes for the finishing train of a continuous 530 mm billet mill producing 60 mm square billet from input square of 120 mm in six passes.

NUMERICAL SIMULATION IN ROLL PASS DESIGN FOR BAR

roll pass design is a preparatory sequence of the labora-tory rolling mill. The work diameter of the rolls of the two-high rolling stand was reduced to 350 mm. Two roll

Roll pass design Definitions SlideShare

Jan 08, 2014 The roll designer will pick the number and size of stands, the reductions at each stand, size motors and drive systems, and design the grooves and roll barrel layouts to provide the most cost effective method of producing the given products. Design a new product to roll on an existing mill.

A BASIC UNDERSTANDING OF THE MECHANICS OF

As regards “abnormal” rolling conditions which are more or less very “normal” for rolling mills roll damage often occurs with consequences for the mill and the rolled product. Evidently the reasons of roll failure have to be discussed and determined (or vice versa) to reduce the risk of repeated roll damage and

Trainings Rollpass Design Solutions

The courses duration span from 2 to 3 days and in the same we cover the basics of rolling, & roll pass design, the selection and the use of rolls for effective rolling, roll management, mill setting of different profiles, rolling defects & its solutions. The content of rolling module can also be changed as per the specific requirement by customers.

Blooming Mill Article about Blooming Mill by The Free

The design of the majority of plants producing section-shaped rolled products corresponds to the traditional layout: the blooming mill—continuous billet mills—shaping mills. The leading unit of the shaping cycle is a two-high reversing blooming mill; hence, the capacity of the entire cycle is determined by the productivity of the blooming mill.

Roll Pass Design for Round Bars ScienceDirect

Jan 01, 1990 The roll pass design of a whole rolling line for round bars can be carried out successfully using the actual PC. The present work examines the computer aided roll pass design of round bars. It deals with the roll pass design strategy of roughing sequences with heavy stretch and finishing sequences.

Rolling (metalworking) Wikipedia

These types of mills are commonly used to hot roll wide plates, most cold rolling applications, and to roll foils. Historically mills were classified by the product produced: Blooming, cogging and slabbing mills, being the preparatory mills to rolling finished rails, shapes or plates, respectively. If reversing, they are from 34 to 48 inches in

Rolling Mill Rolls -Designing & Manufacturing Hani Tech

Note: Composite roll neck material is selected according to strength requirements. Therefore, different types of rolling mills and rolling mills with different operating conditions have different requirements for the performance of the roll, such as square billet and slab blooming mill rolls with good torsional and bending strength, toughness, biting, thermal cracking resistance,

Wear of hot rolling mill rolls: an overview ScienceDirect

Aug 01, 1994 A lit- erature search has revealed no stochastic approach in modelling wear. Roll pass design exerts a vital influence on the non- uniform wear of rolls via control of loads, stresses and relative slip. In addition, the groove wall inclination has a direct influence on the radial machining required to regenerate the groove geometry.

Effect of pass schedule and groove design on the metal

The deformation behaviour of a hot rolled micro-alloyed steel bar of grade 38MnVS6 was examined using an FEM model during the initial passes in a blooming mill, as a function of three different pass schedules, roll groove depth, collar taper angle and corner radius. The simulations predicted the effective strain penetration, load, torque, fish tail billet end shapes, and metal

Metal Rolling Manufacturing

The ingot or continuous casting is hot rolled into a bloom or a slab, these are the basic structures for the creation of a wide range of manufactured forms. Blooms typically have a square cross section of greater than 6x6 inches. One of the goals of roll pass design is to properly design a series of reductions in such a way as to mitigate

Metal Rolling Manufacturing

The ingot or continuous casting is hot rolled into a bloom or a slab, these are the basic structures for the creation of a wide range of manufactured forms. Blooms typically have a square cross section of greater than 6x6 inches. One of the goals of roll pass design is to properly design a series of reductions in such a way as to mitigate

Computer-aided roll pass design for continuous billet mill

A mathematical model has been developed for computing the geometrical dimensions of square-diamond square pass sequence for a continuous billet mill. The model is based on derivation of shape and size factor from the geometry of the pass taking into account pass filling, pass rounding etc. Using these factors and a basic equation of spread for flat rolling, a governing

FAG Rolling Bearings for Rolling Mill Applications

Roll neck bearings Conditionsgoverning design 4 Four-row tapered roller bearingsor connected bythe pinswhich pass through the centre ofthe rollers. Thiscage offersa high strength are used principallyin blooming mills, heavy-plate millsand hot strip mills, i.e. applicationsinvolving

Slit rolling Danieli Corp.

mill is required. Pass Design The leader sections for the multiple slit rolling pro-cess, e.g. square, rectangular or round have to be of very close tolerance. This requires: * Correct pass profile in the rolls * Correct roll gap to ensure no overfill * Correct pass alignment between top and bottom rolls * Sound roll neck bearings and positive roll

Finite Element Simulation of Hot Continuous Rolling of

Initial rolling condition and roll pass schedule Ф100mm 37Mn5 tube billet is designed to be rolled out by 200mm×200mm cast bloom through the six-pass continuous rolling mill with horizontal (H) vertical (V) alternative arrangement. The roll diameter of the first pass (H1) and second pass (V2) is 700mm and the last four passes (H3,V4,

To Prepare and Teach Roll Pass Design of Wire rods/Rounds

It is a consultancy firm formed by a highly experienced and technologically sound professional, who has worked in the field of rolling mills for over 35 years in SAIL, Bhilai and was trained in roll pass design by Russian technologists.We have vast experience in the development of section profiles; rationalization and augmentation of the production of different section and continuous

Hot Rolling of Steel William L. Roberts Google Books

The Basic Principles of Rolling and Pass Design. 163: Blooming Slabbing and Billet Mills. 193: Reheat Furnaces. mill stand mold motor niobium operation oxide pass pearlite percent pipe Plate Mill quenching rails range ratio reduction reheating Rod Mill roll bite roll surface roller rolling force Rolling Mills scale shear shown in Figure

Steel Mill Consulting on Roll Pass Design

Metal Pass improve both roll pass schedule and roll pass software. We provide accurate rolling process models, advanced software engineering technology and mill operation expertise. We work on the rolling of wire rod, bar, section, pipe and tube and strip and plate

rolling+process SlideShare

Jan 15, 2014 Four-high rolling-mill stand Screw or Hydraulic mechanism Housing Back-up rolls Chocks Work rolls Back-up rolls Fig.5 Schematic illustration of a four-high rolling-mill stand, showing its various features. The stiffness of the housing, rolls, and roll bearings are important in controlling and maintaining the thickness of the rolling strip. 9.

Rolling of Metals: Process and Principles (With Diagram)

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

Bar Mill Solutions by Primetals Technologies

The 2+4 EVO reducing and sizing mill uses a patented pass design. A reducing group with 2-Roll stands with high reduction is followed by a sizing group with 4-Roll stands with low reduction. While the 2-Roll high reduction guarantees the desired metallurgical structure, the 4-Roll low reduction provides excellent surface finish and size tolerance.

Projects Russula

Roll Pass Design; Full pass design revamp. A mill in the US was rollilng suboptimally due to multiple product mix changes over the years. Russula co-developed a new pass progression with technical experts from the mill. More information

Rolling SlideShare

Jul 23, 2014 Theory of Rolling-Roll Pass designTheory of Rolling-Roll Pass design It is a Rolling Technology which deals withIt is a Rolling Technology which deals with production of desired shape withinproduction of desired shape within permissible deviations with the requiredpermissible deviations with the required surface finish free from any

Steel Billets, bars, and rods Britannica

Steel Steel Billets, bars, and rods: Billets are the feedstock for long products of small cross section. In cases when they are not directly cast by a continuous caster, they are rolled from blooms by billet mills. One method of rolling billets, which are usually 75 to 125 millimetres square, is to use a three-high mill with box passes, as shown in A in the figure.