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EDDY CURRENT INSPECTION RESULTS ON WORK ROLLS FOR ... · PDF-bestand

conducted in field by Innse Cilindri on work rolls of finishing stands of hot strip mills. The correct interpretation of the eddy current signals and a good calibration of the automatic system have allowed, in many cases, a substantial optimisation of regrinding practices. Key Words: Work roll; Eddy current system; Bruise signal; Roll redressing.

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bruise on hotstrip mill finishing mill rolls

bruise on hotstrip mill finishing mill rolls The Hot Rolling Process - California Steel Industries The primary function of the Hot Strip Mill is to reheat semi- finished steel slabs of steel... The Hot Mill rolls slabs weighing up to 30 tons between 30" and 74".....

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Hot Strip Mill Work Rolls - Union Electric Åkers

A core product of Union Electric Åkers Thousands of Hot Strip Mill Work Rolls come off of our production lines each year, making Union Electric Åkers one of the world's largest roll manufacturers of Hot Strip Mill Work Rolls. All our Hot Strip Mill Work Rolls are made using the vertical centrifugal casting method, ensuring high in-service integrity and premium performance results.

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Manufacturer of Spun Cast Alloy Indefinite Chill Rolls ...

The micro structure offers excellent surface finish to rolled product along with bruise and crack resistance due to presence of graphite which can be altered depending upon the rolling condition.

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Hot Strip Mill » California Steel Industries

Equipped with an automatic gauge control system and technologically advanced computer controls, the hot strip mill rolls slabs of seven to nine inches thick, into coils ranging in thickness from .0538" to .500", and widths of 27 to 72 inches wide. Finishing facilities include a build-up line, a slitting line, and a skin pass line. The latest addition to our Hot Strip Mill is a new walking beam ...

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Hot Rolling Mill - YouTubeDeze pagina vertalen

22-4-2012 · (Roll forming: ) This film takes you through the processes within a hot rolling mill. You'll get to see the different stages all t...

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Hot Strip Mill Work Rolls - Union Electric ÅkersDeze pagina vertalen

A core product of Union Electric Åkers Thousands of Hot Strip Mill Work Rolls come off of our production lines each year, making Union Electric Åkers one of the world's largest roll manufacturers of Hot Strip Mill Work Rolls. All our Hot Strip Mill Work Rolls are made using the vertical centrifugal casting method, ensuring high in-service integrity and premium performance results.

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Hot Strip Mill - an overview | ScienceDirect TopicsDeze pagina vertalen

John G. Lenard, in Primer on Flat Rolling (Second Edition), 2014. 3.5 Friction and Wear. Work rolls in hot strip mills wear due to friction between the roll surface and hot strip. (Back-up rolls wear as well, but under pressure with elastic deformation, the friction is much less, except for the high work roll roughness in the last stand of a sheet rolling tandem cold mill).

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bruise on hotstrip mill finishing mill rollsDeze pagina vertalen

bruise on hotstrip mill finishing mill rolls. Patent US6625515 Roll defect management process Google 23 Sep 2003 A method for inspecting a mill roll used for producing flat rolled metal strip.rolls to reduce the thickness of steel slabs to the desired finished surface roughening, impression marks, bruising, hardness variation, or expression marks ...In a hot strip mill, rolls containing ...

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Roll Mark/Bruise from Hot Strip Mill

This defect can be caused when a tail-end of a previous coil has variable shape, and passes through the last hot mill finishing stand. The sheet can whip/hit into the roll surface and mark it. As a result, the following coil produced through the hot strip mill will have these bruises on the head end.

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rolls for rolling mill - LinkedIn SlideShare

2017-02-24 · These rolls are used in roughers and front stands of the finisher for hot strip mills; rougher, intermediate stands and pre-finishing stands for bar and wire; roll rings and roll sleeves for universal ills and cantilever mills. Chemical Composition % Symbol C Si Mn Cr Ni Mo AD140 I 1.30-1.50 0.30-0.60 0.70-1.10 0.80-1.20 0.50-1.20 0.20-0.60 AD160 I 1.50-1.70 0.30-0.60 0.80-1.30 0.80-2.00 .

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bruise on hotstrip mill finishing mill rolls

Dynamic modelling and simulation of a hot strip finishing mill. A hot strip mill rolls cast steel slabs into thin sheets. A typical hot strip mill facility consists of, in written order, the following units: reheat furnace, roughing mill, transfer table, coilbox, crop shear, finishing mill, runout table and coiler.

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bruise on hotstrip mill finishing mill rollsDeze pagina vertalen

crusher to bruise of pierre - challenge-verslavenirbe. ZCRUSHER bruise on hotstrip mill finishing mill rolls a ek dojay nall mill jaye jewey chan ty; work index for ball mill [understand more] pierre machines crushier A jaw crusher is one of the main types of primary crushers in a mine or ore processing plant laboratory jaw crusher,Pierre machines de traitement Most crusher pierre crusher .

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Application of Portable Non-Destructive Testing ... · PDF file

Hot strip mills in finishing stands normally utilize cast duplex type work rolls in alloy indefinite chill double poured (ICDP) or high chrome iron grades and back up rolls of alloy cast or forged heat treated steels. Back up rolls (BUR) suffer from mechanical pressure cracks in contact stress zones due to .

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EDDY CURRENT INSPECTION RESULTS ON WORK ROLLS FOR ... · PDF-bestand

conducted in field by Innse Cilindri on work rolls of finishing stands of hot strip mills. The correct interpretation of the eddy current signals and a good calibration of the automatic system have allowed, in many cases, a substantial optimisation of regrinding practices. Key Words: Work roll; Eddy current system; Bruise signal; Roll redressing.

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A BASIC UNDERSTANDING OF THE MECHANICS OF ROLLING MILL ROLLS · PDF-bestand

Secondary scale on hot strip and the impact 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

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A BASIC UNDERSTANDING OF THE MECHANICS OF ROLLING MILL ROLLS · PDF file

Secondary scale on hot strip and the impact 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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rolls for rolling mill - LinkedIn SlideShare

2017-02-24 · These rolls are used in roughers and front stands of the finisher for hot strip mills; rougher, intermediate stands and pre-finishing stands for bar and wire; roll rings and roll sleeves for universal ills and cantilever mills. Chemical Composition % Symbol C Si Mn Cr Ni Mo AD140 I 1.30-1.50 0.30-0.60 0.70-1.10 0.80-1.20 0.50-1.20 0.20-0.60 AD160 I 1.50-1.70 0.30-0.60 0.80-1.30 0.80-2.00 .

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Rolling of steel in Hot Strip Mill – IspatGuruDeze pagina vertalen

After exiting the finishing mills, the strip is carried down by a large number of individually-driven rolls through four to 12 banks of low-pressure, high-volume water sprays that cool the red-hot strip to a specified coiling temperature between 400 deg C and 900 deg C and into down coilers.

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Hot Strip Mill » California Steel Industries

Equipped with an automatic gauge control system and technologically advanced computer controls, the hot strip mill rolls slabs of seven to nine inches thick, into coils ranging in thickness from .0538" to .500", and widths of 27 to 72 inches wide. Finishing facilities include a build-up line, a slitting line, and a skin pass line. The latest addition to our Hot Strip Mill is a new walking beam ...

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