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Roll pass design for blooming mill | Operational support ...

2021-7-29 · Home » Projects » Roll pass design for blooming mill | Operational support. Roll pass design for blooming mill | Operational support. 2019 - Huntington, WV - USA. Share. ... On the website it is used to establish a user session and to pass status data through a temporary cookie, which is commonly known as a session cookie. ...

Effect of pass schedule and groove design on the metal ...

2019-4-9 · 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.

roll pass design for blooming mill -

mill is required Pass Design The leader sections for the multiple slit rolling process eg 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 . Read More

Computer-aided roll pass design for continuous billet mill

2019-4-9 · 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.

(PDF) A New Method for Roll Pass Design Optimisation ...

Roll wear is amongst the key criteria for devising a rational roll pass design. Rolls in a hot mill have to withstand radial loads up to 12 MN and high temperatures in the range of 900 to 1300 oC.

Roll pass design for a pipe reducing rolling mill ...

A roll pass design for sets of rolls of a non-mandrel type multiple-stand pipe reducing mill, each set of rolls having three rolls, each of the rolls having concave groove contours that are curved out in a convex manner at both sides of the concave groove so as to form roll pass flanks with a curvature having a magnitude, the rolls being configured so that the magnitude of the curvature of the roll pass flanks of at least a plurality of sets of rolls

(PDF) Automated Procedure for Roll Pass Design

2008-7-3 · Kwon and Im proposed a computer-aided-design system for roll pass and roll profile design to minimize trials and errors in industry [1]. Lambiase and Langella developed an automatic RPD method ...

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.

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

Roll pass design is based on the characteristics of initial input (weight of billet/bloom, steel grade, and steel temperature before and during course of rolling), characteristics of of finished rolled product (dimension of section, tolerances and specification concerning to mechanical properties and surface finish of rolled product), and characteristics of rolling mill (number of stand, roll diameter, strength of

Roll Pass Design for Round Bars - ScienceDirect

1990-1-1 · In the paper a general computer approach strategy concerning the roll pass design for round bars is presented. It deals with roughing and finishing sequences optimizing the pass geometry. The results of the calculation, applied to steel bars, show a good agreement with the geometrical data found in the technical literature or pertaining to ...

Roll Pass Design – IspatGuru

2014-6-18 · Roll pass design is a set of methods for determining the dimensions, shape, number, and type of arrangement of rolling mill passes. Roll pass design also includes the calculation of pressing forces and their distribution on the roll passes. Several passes

ROLL PASS DESIGN METHODS FOR THREE- AND FOUR-

The present paper focuses on roll pass design methods for rolling mills utilizing the three-roll process (3RP) and the four-roll process (4RP). The three-roll rolling

Method of rolling on a blooming mill

FIELD: rolled stock production, namely manufacture of blanks and rolled merchant bars. SUBSTANCE: method comprises steps of shaping in rolling rolls at shaping pass three or more equilateral blanks mutually joined by width through bridges; dividing boundary blanks by expanding bridges till their rupture; shaping blanks with side consisting 1.005 - 1.2 of side of blank divided in roll grooved ...

Analysis of Efficiency of Roll Pass Design Options for ...

The analysis of two roll pass design options of ten roughing stands atOJSC “MMK” 370 rolling mill has been performed. The usage of a new form of the roll grooves will allow achieving higher durability of the rolls. Lesser rolls consumption will allow saving up to 800K rubles annually. More uniform load distribution by the stands will reduce the possibility of main mill lines equipment ...

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

Roll Pass design for steel The cross sectional area is reduced in each pass and the form and size of the stock gradually approach the desired profile. Here the thickness of the metal being rolled is reduced in each pass by decreasing the distance between the rolls. The subsequent passes in rolling section steel are called roughing passes.

Investigation of Rolling Rounds in the Blooming Mill

2013-12-2 · steel was developed and tested: blooming mill 950 - stand-rolled bars of diameter 285, blooming mill 1050 (after reconstruction of blooming mill 950) - bars of diameter 330, 300 and 265 mm of structural and austenitic stainless steels [4]. In order to roll a round section with diameter of 285 mm for the rolls of the mill 950 a special

The type of the blooming mill according to the construct ...

A large rolling mill for rolling large ingots of metal or alloy into billets and slabs, usually a two-roll reversing mill. Can be divided into billet roughing mill and slab mill. In addition to being used as ingots, the products of large steelmaking workshops generally need to be made into billets by the initial rolling mill.

Roll pass design in continuous bar mills - SlideShare

2015-5-18 · 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

Roll Pass Designing in Continuous Bar Mills

2010-7-29 · Roll pass design in continuous bar mills rahul kishore. Analysis of rolling ... Roll Pass Designing in Continuous Bar Mill Billet Size Area Finished Size Area of finished bar Co-efficient of elongation No. of passes 150 22500 12 113.1429 198.8636

كتاب Fundamentals of Rοlling

2021-8-15 · 7.2.3. Blooming Mill Pass Design 7.3. Graphical Method of Roll Pass Design 7.4. Transformation of Formula for Roll Pass Design 7.5. Design of Regular Sections and Breaking-down Systems by the Mean Heights Method 7.6. Theoretical Principles of Section

IMPORTANCE OF ROLL PASS DESIGN IN LONG PRODUCT

IMPORTANCE OF ROLL PASS DESIGN IN LONG PRODUCT ROLLING MILLS Self Study 17-01-2018. Roll Pass Design. Roll pass design is based on the characteristics of initial input (weight of billet/bloom, steel grade, and steel temperature before and during the course of rolling), characteristics of finished rolled product (dimension of section, tolerances and specification concerning to mechanical ...

ROLL PASS DESIGN METHODS FOR THREE- AND FOUR-

The present paper focuses on roll pass design methods for rolling mills utilizing the three-roll process (3RP) and the four-roll process (4RP). The three-roll rolling

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

Roll Pass Designing in Continuous Bar Mills

2010-7-29 · Roll pass design in continuous bar mills rahul kishore. Analysis of rolling ... Roll Pass Designing in Continuous Bar Mill Billet Size Area Finished Size Area of finished bar Co-efficient of elongation No. of passes 150 22500 12 113.1429 198.8636

Steel Mill Consulting on Roll Pass Design - China4-0

2020-11-20 · 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

Roll pass design optimisation | SpringerLink

2016-11-30 · Hot rolling is among the most widely used manufacturing techniques. However, rolling mills are major resource consumers; thus, urgent rationalisation is required in the relevant industrial systems. Roll pass design (RPD) is a principal factor that determines process efficiency, product quality and resource consumption. Therefore, it is important to optimise RPD including the selection of roll ...

Rolling Technology & Roll Pass Design

2018-6-5 · Rolling Technology & Roll Pass Design. Within the framework objectives of the Arab Iron and Steel union to pay attention to human development and raise the administrative, organizational and technological skills of engineers and Technicians in steel industry and associated industries, AISU is implementing a training program in “Rolling Technology and Roll Pass Design” from 23 to 27 ...

GENERAL ASPECTS OF ROLL COOLING FOR HOT &

2021-1-18 · proper roll cooling, the required thermal roll crown can be controlled in way to influence the overall roll profile. It is common practice adjusting the roll cooling to the strip width being rolled. Roll cooling is hence an actuator to allow stable rolling conditions of the mill. This is particular true for strip tandem rolling mills with regard to

SECONDHAND 2HI Blooming Mill - 40 (40 inches)

2014-9-26 · 2HI Blooming Mill - 40 (40 inches) Reversing Mill [88095] Make - SACK 2HI Reversing Mill Mill Size 40 Inches Capacity 9,00,000 mt/yr Mill Stand - Qty.1 P.B.Bush for roll journal Pinion Housing - Qty.1 Pinion centre distance- 40 DC Motor - Qty.1 Make EE - 6650 HP, 1360 Volts, RPM- 0/62/150 , 3850 amp Drive Spindle - Qty.2

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

2020-11-20 · MILL LOAD - Roll Force, Torque, Power The Mill Load application is specifically developed for mill design/operation engineers to calculate roll separating force, rolling torque and power, etc. Typically, load calculation is needed for an existing mill when a new rolling process is applied either with higher reduction or in lower temperature or higher speed, or for a stronger material.