Hot rolling is an essential industrial process in the production of sheet steel, a widely used product in manufacturing and construction. A finishing mill performs a set of operations in a hot strip rolling mill, and is a complex unit including many processes and control loops.

Aug 06, 2010· Roll Change. Just like new tires for the mill Lane Fourteenthirtyone ... hot strip mill - Duration ... Rubber open mixing mill / rubber two roll mill from Dalian Huahan Rubber&Plastic Machinery Co ...

roll shifting strategy in hot strip mill ... (hot strip mills) are very necessary to implement SFR, such as a large number of the same width strip rolling campaigns in hot rolling. The major ...

A typical strip mill consists of a series of "stands" that progressively reduce the thickness of a hot steel slab by passing it between successive roll pairs, Figure 1.

Hot rolled steel strip Line. ... The roughing and finishing mills change rolls by hydraulic. L. Both the roughing mill and the finishing mill are equipped with adjustable inlet and outlet guides.And the coarse and fine-rolled guides can be adjusted by full hydraulic and displacement sensor.

In a compact hot strip mill, which is smaller than other conventional rolling mills, the rolling speed is also low. Especially in thin strip rolling, because strips are rolled with a higher rolling load and low motor speed, the rolling temperature further decreases and is more ... change were calculated under various rolling conditions (Cases-S ...

Feb 29, 2016· Roll-Turning Shop is engaged in producing of new mill rolls and renovation of mill rolls for hot rolled steel sections and strips. This unit has more than 50-year long tradition and experience ...

HOT STRIP MILL — HIGHEST PERFORMANCE FOR NEW AND EXISTING STEEL MILLS The demand for hot rolled strip is growing in multiple ways. To remain competitive, new and existing mills must meet this challenge in the best possible way. The production of hot strip …

ACKNOWLEDGEMENTS Thismanualhasbeenpreparedwithinformationandassistance fromTheAluminumAssociationandmembercompaniesrepresented ontheSheetandPlateDivision ...

Mar 13, 1984· The scale of the rolling mill of the type described is becoming huge year by year particularly in, for example, hot strip mills. In the large-size rolling mill of the kind described, the rolls and the roll changing rails are placed at a large depth from the floor level.

Finished hot strip mill spindles Spindle Parts and Assembly 4. Main drive for large reversing mill Large telescopic spindle ... without interfering with the roll change process. This system helps to reduce bore wear, reduce vibration and chatter, and improve product quality from the mill.

New lubrication technology for the hot strip mill ROLLING force, material surface state, roll degradation, and strip texture (important in fer-ritic steels), are all parameters which are strong-ly influenced by the friction coefficient in the roll bite during hot rolling. Fine control of this coefficient offers the potential to …

FENN Rolling mill machines are available in both 2Hi and 4Hi roll configurations, and mills may be either work roll driven, back-up roll driven, or a combination of both. On the small end of the spectrum, 4Hi rolling mills with work rolls are offered as small as .500" (12.7mm) in diameter.

Strip Threading Equipment; Coil Prep Stations; Coil Inspection Stations; Bridle Rolls; Levelers/Flatteners; O.D./Width Measuring Units; Shears; Strip Notchers; Burr Mashers; Hot Mill Mandrels; Downcoilers; Hot Mill Roll Tables; Entry and Exit Side Guides; Roll Change Rigs; Work Roll De-Chockers; Back-Up Roll De-Chockers

Sun, Li, Shao, He: Research on Crown & Flatness Allocation Strategy of Hot Rolling Mills 328 iterations, whether shift position and bend force exceed the limitations, whether there is any profile defect and among others, but there is no optimization process during calculation.

Steckel mills are discussed in detail. ROLL TYPES AND ALLOYING SYSTEMS Over the last years, the use of work rolls for hot rolling of flat steel has changed. The following picture gives a short description of the recent history of roll grades development in a conventional hot strip mill (fig. 1). In the roughing stands, conventional high chrome ...

Siemens VAI Metals Technologies now offers hot-strip mill operators a new method for changing the pinch rolls in downcoilers. The pinch-roll unit, designed as a quick-exchange cassette, can be replaced within just ten minutes without additional interruption of production.

SMS DEMAG Hot Strip Mills 8 The coilbox arranged between the roughing stand and the finishing mill of a hot rolling mill forms coils of transfer bars, thus serving as both material and heat accumulator. During uncoiling, the former trans-fer bar tail runs into the finishing mill as transfer bar head. The coilbox is employed in new facilities ...

Hot Strip Mill. The Hot Strip Mill is where CSI's rolling operations begin, as steel slab is reheated and rolled to hot rolled coil. With an annual capacity of more than two million tons, the rolling mill is more than a half-mile long and includes a walking beam reheat furnace, a two-high scalebreaker, five four-high roughers, a crop shear, six four-high finish mills, and two downcoilers.

Rolling Mill Optimization Using an Accurate and Rapid New Model for Mill Deflection and Strip Thickness Profile. This work presents improved technology for attaining high-quality rolled metal strip. The new technology is based on an innovative method to model both the static and

This paper describes how an optimization of the rolling conditions (roll lubrication, strip chilling) and the use of new roll qualities on the 2050 mm hot strip mill at Iscor Vanderbijlpark, allowed to realize the full potential of HSS rolls.

The mechanical rolling conditions in hot strip mills are precisely defined by various variables, which are taken directly froth the rolling schedule (separation force, torque. speed. strip thickness) or calculated from figures of the rolling schedule and dimensions of the mill (strip reduction, roll …

A computer model is developed for work roll cooling system in hot strip mill. Using the finite difference method under unsteady conditions the energy equations for the work roll with variable boundary conditions are solved. The model has been verified with the experimental data from Mobarakeh Steel Complex (MSC).

Roll Selection for Hot Plate & Strip Mills Vertical Mill 2HI Rough Mill 4HI Rough Mill 7 Stand 4HI Finishing Mill 1. Hot Strip Continuous Mills, CSP. Vertical Roll: Rough Mill WR: 7 Stand 4HI Finish Mill WR: 2HI Rough Mill: 4HI Rough Mill: Front: After: Alloy Steel AD HiCrS: HWD ...

Performance of the Grease in Roughing Stand at Hot Strip Mill The grease was tried out for lubrication of Work Roll Bearings of 4 stands of Roughing Mill (R#2 to R#5) at Hot Strip Mill. Period of Trial: 83 days. Observations: Grease was tested for its pumpability with the …

Rolling of steel in Hot Strip Mill. ... CVC is a way to change the strip profile by using rolls with a profile. The gap between the rolls can be changed by axial shifting of the rolls. The CVC technique is also known as roll shifting technique. CVC technique has slower dynamics but a wider range than work roll …

HOT STRIP MILLS Mechanical Equipment - SMS group. ... Selective roll cooling spray headers Automatic work roll change equipment. Hot & Cold Working and the Rolling Process - Leong Huat. The difference between hot rolled and cold rolled steels is the mechanical and chemical properties of the end products. Examples of hot rolled products are ...

In a Hot rolling mill especially in a steel industry where highly integrated automation is used for high quality steel strip production, how roll change can be done in …