cold mill work roll

Facilities 5Stand Cold Reduction Mill - californiasteel.com

than can be rolled by the Hot Mill. Cold Rolling CSI's cold reduction mill is a series of five rolling mills, or 'stands'; hence the name "5-Stand". Each mill stand has two work rolls about two feet in diameter, which are driven by powerful electric motors (totaling over 25,000 horsepower) and sandwich the steel to reduce the thickness.

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Strip Thickness Control of Cold Rolling Mill with Roll ...

Also we propose roll eccentricity compensation by using Fuzzy Neural Network. The paper is organized as follows: in Section 2, a brief description of the cold rolling process is presented. In Section 3, a mathematical model has been driven for single-stand cold rolling mill.

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China Single Stand Cold Mill Work Rolls - China Mill Roll ...

The forged rolls are widely used on some tough stands of hot rolling mill, such as BD stand and blooming stand to perform with excellent strength to avoid some rolling accidents. Meanwhile, it is also a good choice to work on the cold rolling mill as backup roll and work roll.

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A BASIC UNDERSTANDING OF THE MECHANICS OF …

Stresses from Hertzian pressure in 4-high cold mill back up rolls were measured ..., 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. ... A BASIC UNDERSTANDING OF THE MECHANICS OF ROLLING MILL ROLLS ...

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Rolling (metalworking) - Wikipedia

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 mill types. Defects

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The Hot Rolling Process - California Steel Industries

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 gears to reduce the slab's thickness by as much as 2-½".

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cold mill work roll - seekpart.com

cold rolling mill intermediate roll Cold rolling mill intermediate Roll applies to high precision 6-Hi (as well as a few 8-Hi) mill, named from working location between work roll and back-up roll, mainly used to control the shape of...

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China Cold Mill Work Rolls for Rolling Mill - China Mill ...

The forged rolls are widely used on some tough stands of hot rolling mill, such as BD stand and blooming stand to perform with excellent strength to avoid some rolling accidents. Meanwhile, it is also a good choice to work on the cold rolling mill as backup roll and work roll.

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Roll neck bearings for rolling mill - JTEKT

Cold strip mill work roll (open type) Cold strip mill work roll (sealed type) No flaking Hardly any indication of rust Conventional type Used approximately 4 million tons (under DS) Conventional type Used for approximately 24 months (under OP) Rust resistance comparison Life (JTEKT bench test) Conventional typ Hard Conventional type

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Strip Thickness Control of Cold Rolling Mill with Roll ...

slipping between the strip and the work roll surface. The necessary compression force is applied by hydraulic rams, or in many older mills by a screw arrangement driven by an electric motor [6]. Figure 1. The rolling process (flat rolling). 3. Mathematical Model of Cold Rolling Process . 3.1. Force Equation

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The Work Roll Bending Control System of the Hot Plate ...

The Work Roll Bending Control System of the Hot Plate Rolling Mill ... This statement is applicable for thin and thick sheets, rolled on hot and cold rolling mills. Sheet thickness falls into two categories: longitudinal and cross (transverse) thickness. ... The work roll bending One of the most influential parameter on the hot plate geometry ...

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Work Rolls for Cold Strip Mills - gerdau.com

The main requirements of a work roll for cold strip mills are as follows: mechanical resistance to withstand the strains from the rolling process, and wear resistance in order to provide high productivity to the rolling mill and enhance surface quality to the rolled strip.

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METALLURGICAL APPLICATION TO WORK AND BACK UP …

With the aim to satisfy the mill requirements it is necessary to pay attention to the Kinetic of oxidation, hot hardness increase in the matrix and the morphology of the different type of carbides. Key words: Hot rolling, Cold Rolling, Kinetic of Oxidation, Hot Hardness, morphology of carbides. International Workshop on "Rolls for Flat ...

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Work roll of cold rolling mill - aluminum-casting-mill.com

The quality of work roll of cold rolling mill directly affects the surface quality, pass rate and rolling operation rate of aluminum sheet. The quality requirements of the work roll are higher and higher, but the basic requirements are as following: 1. High roll hardness (95-100HSD) and uniformity (± 1HSD); 2.

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Cold Mill Work Roll Wholesale, Work Roll Suppliers - Alibaba

A wide variety of cold mill work roll options are available to you, such as free samples, paid samples. There are 19,303 cold mill work roll suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and South Africa, which supply 99%, 1%, and 1% of cold mill work roll …

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Application of Ultrasonic and Eddy Current Testing for ...

Keywords: Rolls, Hot Strip Mill, Cold Rolling Mill, Ultrasonic, Eddy Current Abstract. The work rolls used for hot and cold rolling of steel strips are subjected to severe mechanical and thermal stresses resulting in rolling contact fatigue, wear and plastic deformation on the roll bodies.

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Cold Rolling Mill - Primetals Technologies

The rolling mill adds roll coolant control to the 3 existing types of control (intermediate roll bender, intermediate roll shift, work roll bender) to deliver superior shape control capability. This machine is in wide use in all types of cold rolling fields, including tandem cold mills and reversing cold mills.

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Work Roll - Mill Rolls Manufacturer | Kaida Roll

Work Roll Equipped with one of the best work roll brands, Kaida Roll Group is one of competitive 4 HI mill work rolls manufacturers and suppliers in China, welcome to visit our website. Forged steel work roll performs as a tool to transform materials under normal room temperature, therefore, it is the...

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HIGH-TECH TANDEM COLD MILLS - SMS group

two-stand DCR cold rolling mill (DCR = Double Cold Reduction). The combined pickling line/tandem cold mill is a prime example of the newly developed high-tech mills and is designed as endless mill for an annual capacity of 1.34 million tons. It is able to produce cold strip with a minimum thickness of 0.12 mm. SPECIAL FEATURES

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Buffalo Abrasives, Inc. Roll Grinding Manual

Buffalo Abrasives, Inc. Roll Grinding Manual Revised May 11th, 2012. 2 ... • The arc of contact of a wheel is the portion of the circumference of the roll grinding wheel in contact with the work ... • Cold Mill • Tandem Mill • Temper Mill • SendzimirMill • Specialty Mill

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Difference Between Hot and Cold Rolled Steel | Metal ...

Cold finished bars are typically harder to work with than hot rolled due to the increased carbon content. However, this cannot be said about cold rolled sheet and hot rolled sheet. With these two products, the cold rolled product has low carbon content and it is typically annealed, making it softer than hot rolled …

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Optimization of cold rolling process parameters in order ...

Jan 09, 2012· They calculated a threshold rolling speed on all cold mills where gauge chatter vibration will become self-exciting. Statistical analysis of the rolling parameters during the vibration of the five-cell cold rolling mill was conducted by Makarov et al. .

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Work Rolls for Cold Rolling Mill Rolls - steel-technology

The size and diameter of these work rolls differ as per the client's requirement. Few specifications offered by Vijay Chill Rolls in the work rolls range include the plate work rolls, 6 Hi Mill work rolls and 4 Hi Mill work rolls. These work rolls are of prime quality and hence are highly preferable.

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temper, hot & cold rolling mill-steel equipment builder ...

Cold Rolling Mills From a new single stand reversing cold mill to a complete revamp of a multi-stand mill, Butech Bliss delivers. We specialize in the evaluation of existing mill stands and the necessary reconditioning of the same for use in other applications.

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Cold Rolling | Primetals Technologies

The most common configuration is the single reversing mill. Various mill designs are offered that include 6-high UCMs (Universal Crown Control Mill), ZR mills and 12-high cold-rolling mills with small-diameter work rolls for the efficient rolling of materials of high hardness.

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Cold Rolling Mill Work Rolls - sinyaco.en.made-in-china.com

Cold Mill Rollsof Work Rolls, Cold Rolling Mill Work Rolls, Mill Rolls manufacturer / supplier in China, offering Cold Rolling Mill Work Rolls, Best Price of Plate Mill Rolls, Rolls for Plate Mill, Hot Rolling Mill Rolls, Rolls for Hot Rolling Mill with Best Material and so on.

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Forged Steel Cold Mill Work Roll, Forged Steel Cold Mill ...

Alibaba.com offers 740 forged steel cold mill work roll products. About 1% of these are material handling equipment parts. A wide variety of forged steel cold mill work roll options are available to you, such as free samples.

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Hot & Cold Working and the Rolling Process - Leong Huat

In cold rolling, the metal piece is not heated immediately prior to rolling but the temperature of the workpiece will rise due to the frictional effects of rolling. Steels that are cold rolled become work hardened and annealing is required in order to obtain the desired hardness. The difference between hot rolled and cold rolled steels is the ...

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