MILL CONTROL SYSTEM AND METHOD FOR CONTROL OF …

tion of Rolling Characteristics for Looper Angle Control at Hot Strip Mill", ISIJ International, vol. 43, No. 3, 358-365, 2003. Asano, K. et al., "Hot strip mill tension-looper control based on

Magadh Cold Rolling Mills Catalog

02 Magadh has wide range of Cold rolling mills to suit 02 varied application and requirements. 4 HI MILLS 20 HI MILLS 6 HI MILLS GAUGE & SHAPE CONTROL SYSTEMS TENSION REEL MANDRELS DISCLAIMER PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE RELIABILITY, FUNCTION OR …

POWER IN ROLLING - idc-online.com

POWER IN ROLLING Power is applied to the rolling mill by applying Torque to the rolls and by using roll strip tension.The total rolling load is distributed over the arc of contact. However, the total rolling load can be assumed to be concentrated at point along the arc of contact ata distance 'a' from the line of centers of the rolls.

Rolling of Steel in a Modern Long Product Rolling Mill ...

The main methods of controlling the tension in the mill is with a tension free rolling speed control system and manually monitoring the current drawn by each motor as the bar proceeds through the mill. A looper table can be used to aid in keeping the bar tension free between stands.

Tension leveller model for optimised strip exit flatness ...

Tension levellers are used after a rolling mill to correct some of the off-flatness caused by the rolling process. Mills may have flatness control systems to help mill operators minimise sheet defects from the rolling process, but some levelling is usually required to produce extremely flat sheet that some customers now demand for their processes.

Cold rolling shape defects of stainless steel wide strips

strip has to be cut and started again under lower tension (figure 16) Fig. 16. Snakes Strip profile during rolling: Evolution of the strip profile is influenced by two very important parameters: 1) The temperature inside mill housing. Rolling generates heat. The oil flow removes the heat, and a …

The calculation of rolling force - Innoval Technology ...

Tension. The tension applied to the strip also influences the rolling pressures developed within the bite. Higher entry tension lowers the starting point on the friction hill and so needs to be taken into account in the rolling model. Further learning. In summary, the calculation of rolling force is a complex and multi-disciplinary calculation.

Tension levelling line - Rolling Mill Manufacturers ...

Find top tension levelling line manufacturers of India and get the best quote online. Browse list of tension leveling line manufacturers and contact directly. ... exporters and suppliers of precision engineered machines and equipment including Rolling Mills, Processing Lines, and other Miscellaneous Machines. Made from superior quality raw ...

Six-roll Hydraulic Cold Rolling Mill for Sale - Hani Tech

The HC-type of single-stand reversible six-roll cold rolling mill, with positive, negative bending rolls equipped on the work rolls. The pre-uncoiler and the front and rear tension coiler, thick gauges, laser speedometers are equipped to achieve large tension rolling, ensuring high-speed and stable production of thin gauge products.

Rolling of Metals

–Rolling at elevated temperatures to lower the strength of the material –Apply longitudinal tension to the strip during rolling –back tension on the pay-off reel or front tension on the take-up reel • Grind rolls with a camber to prevent crowning of the rolled strip • Radius of maximum camber point generally 0.25 mm

Looper and tension control in hot rolling mills: A survey ...

Automatic Tension Control (ATC) is design to keep the tensions on the plate between the rolling mills. This paper arms to investigate the dynamics performance of …

Cold Rolling Mills - Strip Tension | BLH Nobel

COLD ROLLING MILLS: STRIP TENSION. High consistency in rolling mill operation requires a high accuracy in tension measurement. The BLH Nobel strip tension systems for rolling mills measures the actual resultant strip tension force, as opposed to measuring the indirect force given by the electrical drives current, increasing measuring accuracy and reactivity.

The Study of Continuous Rolling Mill Inter-stand Tension ...

Keywords: electric drive, rolling mill, tension control, simulation, stand force interaction, size alignment. 1. Introduction On the modern bar and wire mills inter-stand tension is controlled at rolling [1, 2]. For a variety of reasons, it is impossible to use tension direct control systems that is why tension value is inferred by the rolling ...

Rolling Mills | CISDI USA

Rolling Mills / Technology / Projects. Over 50 years of experience in the rolling mill industry has enabled our team to develop innovations which bring hot and cold rolling processes into the 21st century, vastly improving efficiency and …

Redex America

To better serve manufacturers of metal strip and wire throughout the United States, Canada and Mexico, REDEX of AMERICA (RofA), a new subsidiary of France-based REDEX Group, has established a North American headquarters in Swedesboro, NJ, near Philadelphia.RofA offers engineering, collaborative manufacturing and commissioning of cold rolling mills, and …

Tandem rolling mill - Wikipedia

A tandem rolling mill is a rolling mill with two or more close-coupled stands, where the reduction is achieved by the inter-stand tension(s) and the compressive force between the work rolls.. For mills rolling thinner strip, bridles may be added either at the entry and/or the exit to increase the strip tension near the adjacent stands further increasing their reduction capability.

A Flatness Based Approach for the Thickness Control in ...

Keywords: rolling mill, multi-stand mill, thickness con-trol, tension control, flying gauge change, non-linear control, flatness based control. Abstract A multi-stand rolling mill is a highly complex coupled non-linear system. If the operating point is changing in a wider range the non-linearities can no longer be neglected in the controller ...

US5660070A - Cold rolling mill with tension bridle ...

Tension bridles for a cold rolling reducing mill are provided. The reducing mill reduces the thickness of a metal strip passing through the reducing mill.

Maintenance for productivity Rolling models

tension, speed Roll force, torque, temperature CVC, HS, position bending Coil-data Operator-trims Scheduling 400 350 300 250 200 150 100 50 0 0 0.5 1 1.5 2 Log deformation Yield stress 3542 Rolling mill applications covered by ABB include: Single and multistand Mills Cluster and Sendzimir*) Mills Inline and continuous rolling mills Reversing ...

Deformation Processing - Rolling

Flat Rolling Analysis Results – without front and back tension p p µp µp σ σ x x + dσ x Stresses on Slab in Entry Zone Stresses on Slab in Exit Zone p p µp µp σ σ x x + dσ x Using slab analysis we can derive roll pressure distributions for the entry and exit zones as: h 0 and h b are the same thing 2tan1 ff RR H hh − φ = ()0 0 2 ...

Cold Rolling Mills - Strip Tension | BLH Nobel

High consistency in rolling mill operation requires a high accuracy in tension measurement. The BLH Nobel strip tension systems for rolling mills measures the actual resultant strip tension force, as opposed to measuring the indirect force given by the electrical drives current, increasing measuring accuracy and reactivity.

Rolling mill strip tension monitoring and shapemeter ...

A rolling mill strip tension monitoring assembly has a roll supporting structure which supports a plurality of pivotally mounted rolls. A sensor support is movably secured to the roll supporting means Rolling mill strip tension monitoring and shapemeter assembly - Wean United Rolling Mills, Inc. Login Sign up

Metal Rolling - Manufacturing Process

In a metal rolling process, rolls, stands, bearings, housing, motors, and other mechanical equipment are all a necessary part of the manufacturing operation. The place where all the equipment for metal rolling manufacture is set up is called a rolling mill. Rolling mills often vary in the type, number, and position of rolls.

Wire Rod Mills - Hani Tech - Bar & Wire Rod Rolling Mill ...

Through 10 unit rack, the continuous micro-tension rolling mill will be transported upstream φ17~φ21mm of a rolling piece, rolling become φ5.5~φ16mm finished wire rod. The working speed is 90m/s ~ 135 m/s.

Rolling Mills: 6 Different Types of Rolling Mills [Images ...

In the rolling process, the job is drawn through a set of rolls due to interface friction, and the compressive forces reduce the thickness of the workpiece or change in its cross-sectional area.. The types of rolls used in rolling mills are depended upon the shape, size and the gap between the rolls and their contour. Because of workability and limitations in …

Rolling mills - John Cockerill - John Cockerill

Rolling mills. John Cockerill has amassed over 30 years' experience in the design and production of rolling mills. Its latest-generation cold rolling mills are designed to be extremely efficient and flexible and to consistently meet the specific needs of its customers, reducing downtime, monitoring tension and tracking and ensuring optimal ...

HK1170981A1 - Controller and controller for rolling mill ...

Looper control system and method of operating for rolling mills US3702071A (en) * : : Westinghouse Electric Corp: Gauge control method and apparatus for metal rolling mills JPS5314146A (en) * : : Nippon Steel Corp: Rolling speed establishing of continuous hot rolling mill

New Rolling Method R f Reversing Cold Rolling Mill

around the tension reel, specified reduction is carried out in the mill, and tension between the mill and each reel is establis hed; after that, rolling of the second pass is started. After this, rolling is repeated several times until reaching the thickness of product. There are cases in which a product is finished through odd-numbered

What Is A Rolling Mill? | Metal Processing Machinery ...

What Is A Rolling Mill? In metalworking, rolling is a metal forming process in which metal stock is passed through one or more pairs of rolls to reduce the thickness and to make the thickness uniform. The concept is similar to the …

Rolling Mills | Galaxie Corporation

15.5" (393mm) x 4mm United/ I2S 4-HI Reversing Cold Rolling Mill. BLISS.