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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

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Roll Pass Designing in Continuous Bar Mills

2010-7-29  A sequence only produces a definite bar. Roll Pass Designing in Continuous Bar Mill 5. Continuous rolling process - the long axis of the bar is brought between the rolls and is rolled in to a shape with equal axes, then this shape is rolled into a

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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.

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Roll Pass Design and Simulation on Continuous Rolling of ...

2019-1-1  Alloy steel round bar is designed to be rolled by the initial six passes of a continuous rolling process with alternatively arranged horizontal (H) mill and vertical (V) mill. The roll diameter for the first pass (H1) and second pass (V2) is 700mm and the other four passes (H3,V4,H5,V6) have the roll diameter of 610 mm.

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Computer-aided roll pass design for continuous billet mill ...

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. The elongation values have been optimized by varying the apex angle of diamond. A close agreement between computed and actual values shows the validity of the model.

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Improvement of the roll-pass design on the continuous ...

Cite this article. Satskii, V.A., Tsybanev, E.G., Ostapenko, V.V. et al. Improvement of the roll-pass design on the continuous billet mill.Metallurgist 17, 511–514 ...

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

2019-4-9  the two-pass and four pass roll schedules in the continuous hot rolling of a large diameter mandrel bar [7]. A large-deformation constitutive model to evaluate roll force and torque in heavy-reduction was found to be in agreement with Misaka–Yoshimoto model for dynamic recrystalliza-tion

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(PDF) Automated Procedure for Roll Pass Design

2008-7-3  In this study, a computer-aided-design (CAD) system to support roll pass and roll profile design of bar rolling, where simple shapes like round and square bars are produced, was developed in order ...

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Roll Pass Design for Round Bars - ScienceDirect

1990-1-1  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.

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A BASIC UNDERSTANDING OF THE MECHANICS OF

2003-10-15  on wear is another issue. Stresses from Hertzian pressure in 4-high cold mill back up rolls were measured years ago, the results were never published, but of high interest - also, maybe later. K. H. Schröder July 2003 K. H. Schröder: A BASIC UNDERSTANDING OF THE MECHANICS OF ROLLING MILL ROLLS File: SCHROEDER_ROLLS_010703.DOC

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Roll Pass Designing in Continuous Bar Mills

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 20.78453 150 22500 16 201.1429 111.8608 18.52503 150 22500 20 314.2857 71.59091 16.77243 150

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Roll Pass Design and Simulation on Continuous Rolling of ...

2019-1-1  Reasonable design of roll pass schedule is the prerequisite for a successful shape rolling process. In this paper three dimensional elastoplastic finite element simulation with thermal mechanically coupled analysis is applied to study the roll pass design of the hot continuous rolling of Ф100mm alloy steel round bar from 200mm×200mm square ...

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Roll pass design in continuous bar mills - SlideShare

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

Get Price

Computer-aided roll pass design for continuous billet mill ...

Bakhtinov and Shternov 1953Roll pass design (Moscow: Metallurgia) p. 232. Google Scholar . Burtsev K 1973Rolling practice (Moscow: Mir Publishers) p. 146. Google Scholar . Jha S 1980Steel India 3 1. Google Scholar . Jha S, Acharya N K and Sengupta D 1983Investigation into rolling technology of continuous billet mill, Internal Report, Research and Development Centre for Iron and Steel, Ranchi ...

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Analysis and improvement of roll pass design in

Analysis and improvement of roll pass design in continuous groups of the 260 wire mill

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roll pass design for hot rolling of long bar products ...

2012-11-19  roll pass design in section mill. 91 MILLENNIUM STEEL INDIA 2010 Improved roll pass design for long products with Roll Pass Designing in Continuous Bar Mills Hot Rolling Mills

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Rolling of Steel in a Modern Long Product Rolling Mill ...

2017-6-19  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

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

Strategy Roll pass design is defined by geometry of rolls and rolled solids, by process thermodynamics and by attributes of materials. Significant information is defined by calibre geometry of subsequent passes (Fig 10). The core of this information can be expressed by relations of meridians as seen in Fig 11.

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Technical Report UDC 621 . 771 . 25 Progress of Bar and ...

2016-4-6  the Bar Mill of the Yawata Works The bar mill of the Yawata Works started operation in 1976. It is a one-strand fully continuous rolling type mill that produces straight and coiled bars (Fig. 5, Table 2). In 2009, the three-roll finishing mills were renewed with the goal of improving productivity, reduc-

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PROCESS OF ROLLING MILLS

2016-2-25  If a mill rolls 80 % of the calendar year, that is 365 x 24 x 0.80 = 7008 hours. If the mill rolls 800,000 tons per year, it runs at an average production rate of 114.16 tons/hour. If the ...

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Computer-aided roll pass design for continuous billet mill ...

Bakhtinov and Shternov 1953Roll pass design (Moscow: Metallurgia) p. 232. Google Scholar . Burtsev K 1973Rolling practice (Moscow: Mir Publishers) p. 146. Google Scholar . Jha S 1980Steel India 3 1. Google Scholar . Jha S, Acharya N K and Sengupta D 1983Investigation into rolling technology of continuous billet mill, Internal Report, Research and Development Centre for Iron and Steel, Ranchi ...

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Improvement in the roll-pass design of continuous billet

Improvement in the roll-pass design of continuous billet mills Download PDF. Download PDF. Rolled Products; Published: July 1964; Improvement in the roll-pass design of continuous billet mills. N. V. Skorkin M. Ya. Brovman ...

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roll pass design for hot rolling of long bar products ...

2012-11-19  roll pass design in section mill. 91 MILLENNIUM STEEL INDIA 2010 Improved roll pass design for long products with Roll Pass Designing in Continuous Bar Mills Hot Rolling Mills

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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

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

Flat rolling of plates and sheets is essentially a plain-strain compression. f1.2. 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.

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Bar and Wire Rod Mill Steel Plantech

Bar and Wire Rod Mill. Steel Plantech provides the Bar and Wire Rod Rolling System that meet variety of customer needs. For example, we provide solutions that meet customer needs such as the Slit Rolling System and the High Speed Mill (40m/s) which increase productivity, the Hot Direct Rolling System which is directly connected with a continuous

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Rolling Mills: 6 Different Types of Rolling Mills [Images ...

2020-9-30  Planetary rolling mills; Tendem or Continuous mills; 1. Two High Rolling Mills. It contains two heavy rolls fixed one over the other. The rolls are supported in bearing housed in sturdy upright frames (called stands) which are grouted to the rolling mill floor. The vertical gap between the roll is adjustable.

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PP Rolling Mills Manufacturer exporters of rolling mills

Complete project solutions for the hot rolling mill industry. PPRM has been providing complete project solutions (Design, Manufacture Mill Commissioning)for Bar, Rod and Section mills for the past 25 years. PPRM is one of the most “efficient” and “cost effective” engineering companies in the world. Turnkey Solutions. Solutions.

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ROLLING - Rajagiri School of Engineering Technology

2019-1-29  rolled to a thickness of 20 mm in one pass. The roll radius is 300 mm, and the rolls rotate at 100 rpm. Calculate the roll force and the power required. For annealed copper, it has a true stress of about 80 Mpa in the unstrained condition and at a true strain of 0.223, true stress is 280 Mpa.

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The Hot Rolling Process - California Steel

finishing mills, which will roll the steel in tandem with one another. The workhorse roughing mill has 135” wide rolls for rolling ‘broadside’ (as the first roughing mill is commonly called) to make a slab wider. A 5,000 hp motor drives 42”-diameter work-rolls through 28:1

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