﻿ how pass line is calculated in hot rolling mill

Hot Selling Machines
Mining Machines Home>Products

# how pass line is calculated in hot rolling mill

2019-10-13T23:10:27+00:00
• ## How pass line is calculated in hot rolling mill? - Answers

The pass line in a cold rolling mill passes through the center of the billet which is on the funace exit rollers and runs through each stand through the shear blades dividing the shear prior to the...

• ## how pass line is calculated in hot rolling mill

how pass line is calculated in hot rolling mill 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.

• ## Multi-pass Hot Rolling of Steels - Sente Software

Plate rolling mills are mostly of the reversing type, i.e. reducing the gap and hence the stock thickness pass by pass. Once the required dimensions are reached, the plate undergoes an accelerated cooling process where transformations are controlled to obtain the desired microstructure.

• ## Rolling (metalworking) - Wikipedia

A tandem mill is a special type of modern rolling mill where rolling is done in one pass. In a traditional rolling mill rolling is done in several passes, but in tandem mill there are several stands (>=2 stands) and reductions take place successively. The number of stands ranges from 2 to 18. Tandem mills can be either of hot or cold rolling ...

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

The roll grooves in a roller and the roll pass sequence in a hot rolling mill are usually designed based on the type of grades and dimensions of the products and the mill capacity. These have been established over the years based on ana-

• ## Hot Strip Mill - an overview ScienceDirect Topics

11.5.1 Hot rolling Mill data from the hot strip mill has been used to calculate the mean flow stress in each pass, assuming the material to be elastic – ideally plastic. The roll force model used was a classical slab method with constant friction assumed in the roll gap.

• ## Application of Hot Rolling Lubrication on a Reversing Coil ...

Since the single stand of a revers - ing hot roll mill is used for roughing and finishing passes by driving the work rolls, the hardness of the work rolls is specified as 78–80 HSC, and the hard- ness of the backup rolls is specified as 64–68 HSC.

• ## A BASIC UNDERSTANDING OF THE MECHANICS OF ROLLING

In the conventional hot strip mills the minimum strip thickness rolled was (1,5) 2 mm. In thin-slab continuous-cast rolling mills the strip rolled thickness is below 1 mm and the strip caster aims to cast between 2 and 1 mm. In the past it used to take weeks to produce coiled strip from iron ore.

• ## Roll Pass Design – IspatGuru

2014-06-18  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 are made for each section; a square or round billet or bloom acquires a specified form on each successive pass. The roll passes are

• ## HOT ROLLING PRACTICE – An Attempted Recollection

mill to several stands positioned either side by side or in a line. A mechanism, commonly called a roller table, directs the work piece to the rolls, and another roller table for handling the pieces emerging out of the roll. The table in front of the rolls forces the steel against the rolls which grip and pull the steel between them. Steel is, thus, reduced to a thickness equal . 2 to the ...

• File Size: 283KB
• ## how pass line is calculated in hot rolling mill

How pass line is calculated in hot rolling millAnswers. Mar 10 2009 How pass line is calculated in hot rolling mill Answer. The pass line in a cold rolling mill passes through the center of the billet which is . Get Price; Does the equatorial line pass through IndiaAnswers

• ## how pass line is calculated in hot rolling mill – Grinding ...

how pass line is calculated in hot rolling mill. how pass line is calculated in hot rolling mill? The pass line is a line that runs parallel through the roll partings and passes through the centre of the stock area ... » Learn More. Patent US3805573 - Pass line adjustment for a rolling mill ...

• ## Hot Strip Mill - an overview ScienceDirect Topics

11.5.1 Hot rolling Mill data from the hot strip mill has been used to calculate the mean flow stress in each pass, assuming the material to be elastic – ideally plastic. The roll force model used was a classical slab method with constant friction assumed in the roll gap.

• ## Pass Schedule Calculation for a Hot Rolling Reversing Mill

Pass Schedule Calculation for a Hot Rolling Reversing Mill Language: Fortran IV. Objective: Pass Schedule Calculation for a Pilot Flat Hot Rolling Reversing Mill, using the method of Sims to calculate

• ## Properties of Hot Rolled Strip Obtained By Calculation or ...

The deformation is considered to be a parapolic shaped function over thickness.The deformation energy is calculated according Sims equation, whereas the part which is transferred to heat is a fit parameter adjusted by the hot-strip mill data.

• ## Hot Rolling - an overview ScienceDirect Topics

Hot rolling of a 50 mm thick C-Mn steel slab, reduced by 25% in one pass, is presented below. The slab is heated to a uniform temperature of 1050°C and cooled for 15 seconds in air. The process parameters are: roll radius 340 mm, roll velocity 22 rpm, and the friction coefficient is 0.25.

• ## A BASIC UNDERSTANDING OF THE MECHANICS OF ROLLING MILL

In the conventional hot strip mills the minimum strip thickness rolled was (1,5) 2 mm. In thin-slab continuous-cast rolling mills the strip rolled thickness is below 1 mm and the strip caster aims to cast between 2 and 1 mm. In the past it used to take weeks to produce coiled strip from iron ore.

• ## Roll Pass Design – IspatGuru

2014-06-18  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 are made for each section; a square or round billet or bloom acquires a specified form on each successive pass. The roll passes are

• ## Outline of Free Size Rolling for Hikari Wire Rod and Bar Mill

The pass line of the NT mill is about 2 m higher than the pass line leading up to the intermediate train. They are horizontally separated from each other. Until introduction of the RSB, steel material had been guided from the intermediate train to the pre-finishing mill (PFM) by a repeater.

• ## Control of Strip Tension in a Rolling Mill Based on ...

In the metals industry, tandem hot strip rolling mills are used for rolling out thick semi- nished products, e.g., slabs, to thinner at products. The product, which is often referred to as strip, is clamped in each mill stand of the rolling mill train (cf. Fig. 1). As longitudinal tensile stresses in the strip have a signi cant in uence on the plastic material ow in the roll gaps, accurate ...

• ## how pass line is calculated in hot rolling mill

How pass line is calculated in hot rolling millAnswers. Mar 10 2009 How pass line is calculated in hot rolling mill Answer. The pass line in a cold rolling mill passes through the center of the billet which is . Get Price; Does the equatorial line pass through IndiaAnswers

• ## how pass line is calculated in hot rolling mill – Grinding ...

how pass line is calculated in hot rolling mill. how pass line is calculated in hot rolling mill? The pass line is a line that runs parallel through the roll partings and passes through the centre of the stock area ... » Learn More. Patent US3805573 - Pass line adjustment for a rolling mill ...

• ## Pass Schedule Calculation for a Hot Rolling Reversing Mill

Pass Schedule Calculation for a Hot Rolling Reversing Mill Language: Fortran IV. Objective: Pass Schedule Calculation for a Pilot Flat Hot Rolling Reversing Mill, using the method of Sims to calculate

• ## Roll Pass Design-1 Rolling mill steel making ...

2019-02-08  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 ...

• ## The Hot Rolling Process - California Steel Industries

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. The Hot Mill rolls slabs weighing up to 30 tons ...

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

Different mill stand. 4. Roll pass design . 5. Rolling mill speed calculation . 6. Area, unit weight calculation. 7. Thermo-mechanical process. 8. Rebar quality control . Suitable course for mechanical engineers, steel mill supervisor, technicians and those are interested about physics, math, metallurgy. Who this course is for: Student of Mechanical Engineering, Maths, Physics and Steel Re ...

• ## Cold rolling mill - ifm

A cold rolling mill consists of different plants and machines. First, the scale that has formed on the hot strip is rinsed in the continuous pickling line. The coils are then pre-rolled and annealed in a bell-type annealing furnace. In the skin-pass mill, the cold strip obtains the desired final mechanical and technological properties. In the slitting line, the strip is slit or cut to length ...

• ## Slit rolling - Danieli Corp.

producer of fine guide equipment for hot rolling mills. The company is the original inventor of roll-er guides and has since the beginning been a leading manufacturer of such equipment. Over the last decades there has been a strong dem-and to increase production capacity with a mini-mum on capital expenditure. Morgårdshammar ventured in the development of updated equipment for the multi ...

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

On a typical standard mill configuration, write down the reworked throat diameter of the first breakdown pass, first fin pass, and first sizing pass. Next identify the one section that has the largest throat diameter, which will be referred to and indentified as the "large base". In

• ## URI Engineering Computer Center

URI Engineering Computer Center

• ## how pass line is calculated in hot rolling mill

How pass line is calculated in hot rolling millAnswers. Mar 10 2009 How pass line is calculated in hot rolling mill Answer. The pass line in a cold rolling mill passes through the center of the billet which is . Get Price; Does the equatorial line pass through IndiaAnswers

• ## Slit rolling - Danieli Corp.

producer of fine guide equipment for hot rolling mills. The company is the original inventor of roll-er guides and has since the beginning been a leading manufacturer of such equipment. Over the last decades there has been a strong dem-and to increase production capacity with a mini-mum on capital expenditure. Morgårdshammar ventured in the development of updated equipment for the multi ...

• ## Chapter 13 What is rolled? Rolling of Metals

Rolling Mills ¾Rolled product may be Up to 5 m wide Thin as 0.0025 mm ¾Roll setup Two-high, Three-high • Used during the initial hot rolling Three-high • Reversing mill • Material movement is reversed after each pass Four-high and cluster mills • Small diameter rolls • Lower roll forces and power requirements • Replacements of rolls is less expensive ¾Tandem rolling Rolled ...

• ## Cold rolling mill - ifm

A cold rolling mill consists of different plants and machines. First, the scale that has formed on the hot strip is rinsed in the continuous pickling line. The coils are then pre-rolled and annealed in a bell-type annealing furnace. In the skin-pass mill, the cold strip obtains the desired final mechanical and technological properties. In the slitting line, the strip is slit or cut to length ...

• ## Tandem Rolling Process :: Total Materia Article

The processing of steel in cold rolling mills differs considerably from the production in hot rolling mills. The raw material is first descaled (usually pickled, sometimes shot blasted and pickled), then cold rolled and heat treated. Further treatment steps include slitting, skin-pass rolling, coiling and packing. Tandem cold rolling mills are named by their stand arrangement and designed as ...

• ## Temper mill - Wikipedia

A temper mill is a steel sheet or steel plate processing line composed of a horizontal pass cold rolling mill stand, entry and exit conveyor tables and upstream and downstream equipment depending on the design and nature of the processing system.. The primary purpose of a temper mill is to improve the surface finish on steel products.. Components. A typical type of temper mill installation ...

• ## ROLLING - Primetals Technologies

of hot and cold rolling becomes more easily manageable. Smart sensors, a new generation of digital process models, and better cooling technologies all contribute to a higher and more consistent end-product quality. ROLLING A SELECTION OF THE MOST REMARKABLE SOLUTIONS OF PRIMETALS TECHNOLOGIES FOR THE DIGITALIZATION OF Hot rolling Cold rolling Long rolling Aluminum.

• ## Rizhao Baohua orders continuous hot skin pass mill with ...

2018-11-20  Specifically, the CHSPM is composed of a double coil charging and entry section design for heavy incoming black coils, a 6-strand horizontal looper 6, a skin pass mill with a maximum roll force of 1,500 tons, a 60 tons tension leveler, inspection facilities and an exit and coil dispatching system. The line is equipped to process strip with thicknesses ranging from 0.6 to 4 millimeters and ...