6 hi mill roll choke configration

DESIGN AND OPTIMIZATION OF ROLLING MILL CHOCK

rolling. Rolling mill configuration and four high stand of reversing cold mill are shown in figure 1 and 2 respectively. Figure [1] Rolling mill configuration 3. Types of Roll Chocks …

Z-Mill, Sendzimir Mill, Cluster Rolling Mill | Waterbury Farrel

The 20-Hi roll cluster contains 12 rolls and eight backing bearing assemblies. A rigid, compact mill housing eliminates deflection of work rolls and produces a uniformly close gauge tolerance strip. Waterbury Farrel supplies 20-Hi Mills in either reversing or one-way operations. Waterbury Farrel developed and patented the Sendzimir (Z-mill) in ...

SECOND-HAND PRODUCTION LINES

, Type: 6-Hi Rev., Built: 1976, Shut down: 2014, Revamped: 2010 Control system – changed DC to AC motors · Load cells were replaced in March 2005 & thickness gauge ... Roll force: 100-1000 MP SKIN PASS MILL (SKINPASSMILL210301) Mfc.: MDS, Built: 1980's, Modernised in 1986 & 1993, Type: Duo Cold

Effect of work roll shifting control on edge drop for 6 …

The main control methods include the series of 6-high high-crown-control mill (HC) technology, pair cross rolling (PC), taper work roll shifting (T-WRS), taper work …

Hyper UC-Mill: The Rich Reward of Innovation

On the Optimization Procedure of Rolling Mill Design

narrow 4-hi mill needs 100 mm work roll diameter; the medium mill, 250 mm; and the wide mill, 600mm. The diameter ratios of the 2-hi and 4-hi mills for various strip widths are very close.

A rapid calculation method for predicting roll …

rolling mill. Yuan et al. [6] proposed a more accurate roll flattening model for a six-high mill based on FEM. Ma et al. [7] modeled a 12-high mill by FEM to determine the effect of the intermediate roll shifting on the strip flatness. Cho and Hwang [8] and Yu et al. [9] developed FEM models to analyze roll deformation in 20-high Sendzimir mills.

(PDF) Analysis of Causes and Remedy of Chattering in the

The four stand cold rolling mill is four HI equipped with CVC for a shape control system capable of producing thinner gauge of 0.15 mm 2100 mm wide aluminum Alloy grade AA3104. ... Roll Gap in the ...

THE RICH REWARD OF INNOVATION

Inspired by his passion to create the most user-friendly, high-performance rolling mill possible, Primetals Technologies later evolved his design to create a highly sophisticated cold-rolling solution. The Hyper UCM is the most advanced iteration of the Universal Crown Control Mill (UCM) and takes after Dr. Kajiwara's 6-Hi mill innovation.

Impact Analysis of Roller System Stability for Four-High Mill

In order to study the hot Compact Strip Production (CSP), four-high mill vibration characteristics, and vibration suppression method, the roller system structure stability was analyzed and calculated at first in the paper. And then, the mill stand gap was measured at field and its influence on roll transverse vibration was analyzed. The drum …

Cold rolling mill 6-high

Product description. The diameter of the 6-high work rolls amounts to approximately 1:4 in relation to the barrel length. In comparison to a 4-high mill stand, the utilization range is …

Tandem Mill ton Backup Rolls

tandem mill back up rolls in valparaiso - studiogiuseppelalli.it. tandem mill ton backup rolls - Know More. May 26, 2020 0183 32 Backup roll contour of a SmartCrown tandem cold rolling mill 01/06/2008 For the SmartCrown tandem cold mill, two aspects of work have been done one is proposing the Smart-Crown plus work roll contour based on the …

L R Spares Industries

Manufactured 6 sets of work roll choks assembly, 5 sets of intermediate roll assemblyof 6 hi mill/4hi mills, skin pass mill. Manufactured many non ferrous liners, bushes Sparess, can alloy bushes, ferrite free arms of sink roll/ reflector roll of processing lines equpment of color coating line, galvanizing line, cut to length line, pickling line.

Design and Analysis of Cold Rolling Mill Chock

the information about the Natural Frequency of the Top Roll Choke and to check if the natural frequency of the machine does not match the natural frequency of the Top Roll Choke to avoid resonance. Table 4 Von Misses Contour Plot for Top Roll Chock Mode Frequency (Hz.) 1 7.0637 2 8.2337 3 13.896 4 24.336 5 27.757

Backing Bearings (Z-Mill) for Highly Precise Rolled Products

There are five levels of Z-Mill bearing repair to consider to ensure the best quality. (216) 232-9255; 1-877-846-5514. Manufacturing ... advantage of the Z-mill is that the small work rolls provide a sharper bite, more significant pressure, and less roll deflection than a four high mill and can roll stainless top gage without softening the roll

Roll Chocks

Stainless Steel Roll Chock, For To Support Backup Rolls, 64mm. ₹ 5,50,000/ Piece Get Latest Price. Usage/Application: To Support Backup Rolls. Inner Diameter: 64mm. Size: 18 Inch (Length) Color: Golden (Body) Shape: Rectangular (Head) Material Grade: SS 304.

Evaluation of Crown Performance of Vertical Stack Mills …

6-hi mill has nearly double crown compone nts with respect to the 4-hi mill. As shown in Fig. 7b, the curves of the inco ming crown effects are open and the contours look like invers ed and

Effect of work roll shifting control on edge drop for 6-hi …

For tandem cold mills with work roll shifting, the roll contours of different stands are usually identical to facilitate roll scheduling. For a 1500 6-high mill to be researched, the curve parameters H arc, L arc, H l, and L l were set to 400 μm, 155 mm, 0 mm, and 0 mm. The work roll shift is given by L use.. 2.2 Cooperative control strategy by …

DESIGN AND OPTIMIZATION OF ROLLING MILL CHOCK

The bottom surfaces of the Top Roll Choke were constrained as shown in figure 6. The Von Misses Contour Plot for Top Roll Chock is shown in table 3 which gives the information about the Natural Frequency of the Top Roll Choke and to check if the natural frequency of the machine does not match the natural frequency of the Top Roll Choke to avoid ...

ON A NEW SLIP-STICK ROLLING MODEL WITH NON …

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6-Hi Mill, 6-High Mill | Waterbury Farrel

The smaller work rolls in the 6-Hi Mill allow a higher reduction and acceptance of thicker hot-rolled strip. Live customer service agents are standing by to receive your call Monday to Friday, 8:30am to 5:00pm …

vibration mill maximum frequency

Vibration mill is a kind of mechanical crushing equipment, which uses grinding media (ball or rod) to exert strong impact, friction, shearing, squeezing and other effects on the material in the cylinder for high-frequency vibration, so that the processed material can reach fracture, Crushing, thinning, mixing and other purposes. ...

Influence of intermediate roll shifting on strip shape in a CVC-6 …

Intermediate roll shifting (IRS) is widely used for improving the strip shape in the six-high tandem cold mill, but most related studies are limited to a single stand. To fill the knowledge gap, a three-dimensional (3D) multi-stand elastic–plastic finite element (FE) model was developed for a continuously variable crown (CVC)-6 tandem cold mill using …

Effect of work rollshiftingcontrolon edgedropfor6 …

drop control capability of shape control methods of 6-hi mill including work roll bending, intermediate roll bending, and intermediate roll shifting [3],but it is muchlower by compar-ison with work roll shifting shown by the study of Tateno mentioned above. Omori et al. analyzed the profile control characteristics of pair cross rolling mill (PC ...

A guide to maximising ball mill circuit classification …

In this example the ball mill circuit classification system efficiency is 77.1 per cent at 75 μs. This means that 77.1 per cent of the particles in the mill are 'coarse' and that 77.1 per cent of the mill power is being used 'effectively'. Conversely, 100-77.1, or 22.9 per cent of the mill contents are 'fine' and are being overground,

TECHNOLOGICAL DEVELOPMENTS IN COLD ROLLING …

zMany mill equipment builders on the scene. zPrecision Equipment / Flat Products formed in 1977 collaboration with T. Sendzimir. 1st Hydraulic Screw Down Mill 1st Sendzimir Mill for Carbon Steel 1st 6-Hi Cold Mill (1000 mm) 6-Hi - Widest (1650 mm) Cold Mill 6-Hi - Fastest (1400 mpm) Cold Mill 6-Hi Mill with AC Drives to China.

Roll chocks in Rolling Mill – IspatGuru

Chock is the basic part of a rolling mill. It is mounted in the window of the roll stand housing between the posts with a small clearness. The roll stand housing encloses and supports the chock assembly. The chock also prevents scale getting into the roll neck bearing. The process stability of rolling mill is significantly influenced by the ...

2486 6 hi mill roll choke configration

Snap-on Incorporated - 400+ Top Electrical Engineering Interview … established the process from biting to rolling steady were simulated and investigated for 6 high, chock and backup roll chock in cold rolling mill to control the failure of choke in the cold rolling mill for retain the material cost and longer life of the roll chock the roll chock had stress …

What Is A Z-High® Mill?

The concept of the Z-High® mill is a revamping of a classic 4-High mill with a system that uses a much smaller work roll. This configuration allows the mill to take heavier reductions per pass and can achieve thinner gauges. Harder materials can be rolled without intermediate anneals; as a result, a better surface can be produced.

Work Roll at best price in Mumbai by Sankap Special Steel

We supply a widest range of WORK ROLLS used for Rolling Mill of different dimensions and strength as per the custom requirement of the client. some more specification of the rolling mill work rolls are 2 Hi Mill work Roll, 4 Hi Mill work Roll, 6 Hi Mill work Roll, 2nd Intermediate roll,20 Hi Mill Roll,20 Hi Work Roll.