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how to reverse the rougher in a hot strip mill

Steel - Hot strip | Britannica

Steel - Hot strip | Britannica

For example, a semi-continuous hot-strip mill has only one reversing rougher in front of the finishing train. Another rolling system goes even farther and uses one four-high reversing rougher and one four-high reversing finishing mill, with hot-coiling boxes in front and in back of the finishing mill.

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AIST - 2006 AISTech Conference Proceedings

AIST - 2006 AISTech Conference Proceedings

The Companhia Siderúrgica de Tubarão - CST was built up on june of 1976 and it started up in 1983 with production dedicated to slabs. In 2002 with the Hot Strip Mill start up, CST was able to produce 2.0 million tons per year of hot coil with the main focus on domestic market .

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Introducing the Reverse Sear: The Foolproof .

Introducing the Reverse Sear: The Foolproof .

Aug 10, 2015 · In an EXTREMELY hot cast iron skillet or grill, cook steaks one minute per side, until a dark brown crust forms. 5. Let rest another 10 minutes, slice, and serve.

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Strip Mill Plates | Reliance Steel and Strip | Steel .

Strip Mill Plates | Reliance Steel and Strip | Steel .

Our Strip Mill Plate is produced to ASTM-A-36. Unlike the specification that our Hot Rolled Sheet is manufactured to, ASTM-A-36 is a structural specification. The plate is produced to specific chemical and mechanical properties that offer a minimum yield of 36,000 pounds per square inch and a tensile strength range of 58,000 to 80,000 pounds .

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REVERSING COLD MILL - Primetals Technologies

REVERSING COLD MILL - Primetals Technologies

Advanced reversing cold-mill technology from Primetals Technologies is an ideal solution for small- to medium-sized production capacities, or for the rolling of smaller order lots of special steel grades. Depending on the product mix and quality demands, Primetals Technologies offers 6-high or 4-high mill stands to meet the respective product .

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Everything you need to know about flatteners and levelers .

Everything you need to know about flatteners and levelers .

Oct 10, 2002 · Then, as the cold mill gap is adjusted to reduce the crown, the coil also will come out flat--if the hot mill got the relationship between crown and flatness right to begin with. If the cold mill rolls or hot mill coils have too much crown, the mills will roll out .

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Buyers of rougher - Panjiva

Buyers of rougher - Panjiva

Top buyers of rougher from around the world. Panjiva helps you find, evaluate and contact buyers of rougher.

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strip - MathWorks

strip - MathWorks

newStr = strip (str) removes all consecutive whitespace characters from the beginning and end of str, and returns the result as newStr. newStr = strip (str,side) removes all consecutive whitespace characters from the side specified by side . The side argument can be 'left', 'right', or 'both'. newStr = strip (___,stripCharacter) strips the .

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ENDLESS ROLLING MILL - Primetals Technologies

ENDLESS ROLLING MILL - Primetals Technologies

Primetals Technologies is the only supplier in the world that can supply a complete endless rolling system, and five hot strip mills are under operation with our endless rolling technology, with remarkable accomplishments. Primetals Technologies offers, in connection with the above, the following proven technologies for the customer.

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Hot strip mill mathematical models and set-up calculation .

Hot strip mill mathematical models and set-up calculation .

This setup calculation was applied to a New Zealand hot strip mill, which consists of a reversing rougher and a four-stand finishing mill. With this configuration, strip was successfully rolled with a finished thickness of 2 mm and a width of 1250 mm. >

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A BASIC UNDERSTANDING OF THE MECHANICS OF ROLLING .

A BASIC UNDERSTANDING OF THE MECHANICS OF ROLLING .

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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AIST - 2006 AISTech Conference Proceedings

AIST - 2006 AISTech Conference Proceedings

The Companhia Siderúrgica de Tubarão - CST was built up on june of 1976 and it started up in 1983 with production dedicated to slabs. In 2002 with the Hot Strip Mill start up, CST was able to produce 2.0 million tons per year of hot coil with the main focus on domestic market .

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Stelco Hamilton | Get a Complete Importer History

Stelco Hamilton | Get a Complete Importer History

Description ROUGHER WORK ROLLS FOR HOT STRIP MILL SERIAL ROLL NUMBERS: GP 88113 ORDER NO.: 4023600LINE NO.: 1 ITEM NO.: 1000220052 GP REF.:132/2018, 1ST PART SHIPMENT FREIGHT PREPAID HS CODE: 84553090 : Keywords rougher work rolls hot strip mill serial roll numbers : HS-Code DATA UNAVAILABLE : Piece Count 1

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Study and Application of SSC Model on Hot Rolling Wide .

Study and Application of SSC Model on Hot Rolling Wide .

According to cutting loss of the head and the tail of hot rolling wide strip mill for the loss of width, the control conditions, the control mode and control model of short stroke control (SSC) of the rough mill are researched and given by dynamical changing the rough mill roll gap for SSC simulation and basing on infinite element method (FEM) analysis and results.

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How does it work: hot-strip rolling mill

How does it work: hot-strip rolling mill

Mar 31, 2015 · ThyssenKrupp Steel Europe spent a quarter of a million euros on renovating its hot-strip rolling mill in Duisburg. The animation shows how it all works.

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What is a Reversing Mill? - Definition from Corrosionpedia

What is a Reversing Mill? - Definition from Corrosionpedia

A reversing mill is a rolling mill in which the workpiece is passed forward and backward through a pair of rolls. The reversing mill is so named because the steel runs back and forth between the rollers, reducing the thickness incrementally with each pass. A reversing mill can be used to reduce material to gauge.

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Steel - Forming of steel | Britannica

Steel - Forming of steel | Britannica

Steel - Steel - Forming of steel: Forming processes convert solidified steel into products useful for the fabricating and construction industries. The objectives are to obtain a desired shape, to improve cast steel's physical properties (which are not suitable for most applications), and to produce a surface suitable for a specific use.

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New Rolling Method Of Reversing Cold Rolling Mill

New Rolling Method Of Reversing Cold Rolling Mill

in the mill, and tension between the mill and each reel is established. After that, rolling of the first pass is started. The tension becomes lost when the hot coil is taken out from the payoff reel, so reduction of off-gauge is implemented by applying tension due to friction force using a strip press in the mill.

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Hot strip mills (Steel) | SMS group

Hot strip mills (Steel) | SMS group

You'll appreciate X-Roll ® hot strip mills from SMS group as all-round plants for high-quality hot strip. They are designed to produce flat steel from thin strip with a minimum final gauge of 1.2 millimeters to high-strength pipe steels up to 25.4 millimeters thick, including stainless steel grades.

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HOT STRIP MILLS Modernization concepts - SMS group

HOT STRIP MILLS Modernization concepts - SMS group

SMS SIEMAG Hot Strip Mills 2 ADAPTING existing hot strip mills to present-day market requirements Owing to their size and high investment volume, hot strip mills have an extremely long life. Almost 40 % of the 140 conven-tional hot strip mills currently in operation all over the world were built between 1960 and 1970. At that time, these mills

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Blair Strip Steel | Products

Blair Strip Steel | Products

Annealed And One-Pass Hot Rolled Strip - Hot rolled strip is annealed for softness and gauge-corrected for closer thickness tolerances on a cold rolling mill. This is a lower cost option where the degree of spheroidization, dimensional tolerances or surface finish may not be as demanding in either the metal forming process or the finished part.

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Stelco Hamilton | Get a Complete Importer History

Stelco Hamilton | Get a Complete Importer History

Description ROUGHER WORK ROLLS FOR HOT STRIP MILL SERIAL ROLL NUMBERS: GP 88113 ORDER NO.: 4023600LINE NO.: 1 ITEM NO.: 1000220052 GP REF.:132/2018, 1ST PART SHIPMENT FREIGHT PREPAID HS CODE: 84553090 : Keywords rougher work rolls hot strip mill serial roll numbers : HS-Code DATA UNAVAILABLE : Piece Count 1

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Arcelor Mittal - Cleveland 84

Arcelor Mittal - Cleveland 84" Hot Strip Mill Revamp

Nov 29, 2011 · Arcelor Mittal - Cleveland 84" Hot Strip Mill Revamp 1. Arcelor Mittal - Cleveland 84" Hot Strip Mill Revamp 2. A-M Cleveland Hot Mill 7 Stand Finishing Train, 72,000 HP 5 Stand Roughing Train, 56,000 HP 2 Downcoilers, 1000 HP each 3 Pusher Type Furnaces, 450 Tons/Hour Each Width: 26" to 72" Thickness: 0.056" to 0.700" Capacity: 3 Million Tons/Yr

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Hot Strip Mill - an overview | ScienceDirect Topics

Hot Strip Mill - an overview | ScienceDirect Topics

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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Hot Rolled Products Analyst Site Visit Port Kembla

Hot Rolled Products Analyst Site Visit Port Kembla

Rougher Coil box Finisher 1-10mm thick Coiler 500-800 m Run out table cooling Strip Casting 15-150 m/minute Scale Control Chamber 20-40 metric ton coil 0.7 - 1.8 mm thick 60 m . Hot Strip Mill Commissioned 1955, upgrades 1972 & 1985 2.4 Mtpa Product flow. Plate Process Shearing, stencilling, shot blasting, prime painting .

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The Hot Rolling Process - California Steel Industries

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.

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Rivers of Steel- Workers and Jobs

Rivers of Steel- Workers and Jobs

Hot Strip Mills Coil slitter: sets up and operates a slitter line, slitting the coiled strip; Coiler: operates the equipment to coil or stack products being rolled on a mill; Transportation Switchman: assist in the movement of freight cars in general plant switching, throwing switches, disengaging couplings, and signaling the engineer;

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Introducing the Reverse Sear: The Foolproof .

Introducing the Reverse Sear: The Foolproof .

Aug 10, 2015 · In an EXTREMELY hot cast iron skillet or grill, cook steaks one minute per side, until a dark brown crust forms. 5. Let rest another 10 minutes, slice, and serve.

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Report on Best Available Techniques (BAT) in the German .

Report on Best Available Techniques (BAT) in the German .

Report on Best Available Techniques (BAT) in the German Ferrous Metals Processing Industry FINAL DRAFT Deutsch-Französisches Institut für Umweltforschung (DFIU) French-German Institute for Environmental Research University of Karlsruhe (TH) o. Prof. Dr. O. Rentz Dipl.-Wirtschaftsing. Rainer Jochum, Dr. Frank Schultmann Karlsruhe, March 1999

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AIST - 2009 AISTech Conference Proceedings

AIST - 2009 AISTech Conference Proceedings

The 4hi reversing rougher of an 80" semi-continuous hot strip mill had experienced several work roll driving motor thrust bearing damages recently. Quad Engineering Inc. investigated the problem and found out that the damages were caused by unusual high work roll thrust load, which is mainly caused by instability of the rolls.

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