John G. Lenard, in Primer on Flat Rolling (Second Edition), 2014 1.2.5 Cooling. After exiting the finishing mill, the strip, at a temperature of 800–900°C, is cooled further under controlled conditions by a water curtain on the run-out table.The run-out table may be as long as 150–200 m. Cooling water is sprayed on the top of the steel at a flow rate of 20,000–50,000 gpm; and …

Rolls are the main and very costly consumables in a rolling mill. They are used to roll steel in the rolling mill and their performance depend on many factors which include the materials used and the loads to which they are subjected to during service.

The quality of steelwork products depends on the geometric precision of flat products. Heavy-plate rolling mills produce plates for large-diameter pipes and …

Rolling mills are used for completing the rolling process. These are available with various steel roll manufacturers in a variety of shapes and sizes as per requirement of the process. The number of the rolling mill depends on …

5. Cluster Rolling Mills: In this type of rolling mill, there are two basic roles that are backed up by two or more rolls which are bigger than those two basic rolls. These backed up rolls give more pressure to the basic rolls to heavily press the strip.

the harsh environment of rolling mills and in similar working conditions. LAP profile measurement systems have been a part of it from the beginning – first with analog sensors, intricate frames and customized ... The quality depends on your control of the production process. For control you need precise, detailed, reliable information

The magnitude of decarburization depends on the morphology of WC carbides. ... and rolls for rolling mills 1, 2, 3. The nickel-based self-fluxing cermets constitute nowadays adequate alternatives to the chromium and cobalt-based cermet which are known for their harmful effect on the environment 4, 5.

During the period of rising load on the working tool (digging phase of a mining machine, slab biting in rolling mills), the reaction on the bearing of each transmission element depends on the radial gaps (including installation clearances and …

and all ancillary equipment necessary for running the mill. The protection required depends on the type of mill. POSITION . This PRC Guideline covers protection for the rolling mill and immediate building area only. It assumes the facility has good management programs, noncombustible construction, adequate water supplies

Steel plants, especially rolling mills as well as processing lines, depend mainly on uninterruptible processes and on the quality of the steel rolled. As a result, drive technology plays an essential role. The drives that we deliver are dimensioned in accordance with the customer's plants and metallurgical process and can be integrated ...

Abstract: Control of hot-steel rolling mills aims at raising the levels of quality of the related industrial production and at minimising the cost of the electric energy consumed by such industrial units. This paper proposes a non-linear optimal control approach for …

The maximum possible draft in a rolling operation depends on which of the following parameters (two correct answers): (a) coefficient of friction between roll and work, (b) roll diameter, (c) roll velocity, (d) stock thickness, (e) strain, and (f) strength coefficient of the work metal? ... Which of the following rolling mill types are ...

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Roller conveyors are used for the transport of slabs, billets, or sheets in steel mills and hot rolling mills. Depending on the rolled product, individual loads of up to 30 tonnes or more can be conveyed. In hot rolling mills, for instance, the rolled product may not come to a stop, because the rolls to be transported could be damaged in the ...

Rolling mills depend on coiling mandrels and shears to roll and process the finished product. Two common problems associated with these applications are attributable to the same cause, grease! Use too little grease and your equipment sticks or misaligns, while too much grease can contaminate the strip.

In steel re-rolling mills heat is generated and used on high levels. Hot rolling furnace has a temperature of 1000-1300[degrees]C which is quite a high temperature. Area surrounding the furnace has very high temperature. No insulating material is present around the furnace and in the working shed so that to reduce the heat.

Methods and apparatus for rolling metal sheet or plate are provided. The method comprises the step of feeding the metal plate or sheet into a rolling mill at an angle. The apparatus comprises a rolling mill having a tilted feed table, or an apron upon which a transfer table and tilted feed table can rest. Through-thickness gradient and shear texture can be improved using the methods …

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The construction of a rolling mill depends on the type of the rolling operation to be performed. The basic parts of a rolling mill are as follows: 1) Work rolls- These are the main roll arrangement that is to be used for performing the operation and the one for which the mill has to be set. 2) Back-up rolls- Sometimes the main rolls tend to ...

Examples of applications are rolling mills, paper mills, mine hoists, etc. Ques 3. The consideration involved in the selection of the type of electric drive for the Load Variation application depends upon

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R W Winfields, Winfields Rolling Mills Ltd, founded in 1829 in Cambridge St. to Broad Street site in Birmingham, now the site of the International Convention Centre. Set up rolling mill in Icknield Port Road. Manufactured of rolled metal, wire, gas fittings, brass foundry, lighting, beds, chandeliers and brass chains.

It is mainly used in the engine and fabricating machines like rolling mills, punching machines, shear machines, presses etc. Construction Flywheel is a circular wheel (or Disc) made up of steel or cast iron (depends upon the application).

Reducing the roll gap increases the roll pressure to p3. Gage control in multiple rolling mills is achieved through measurement of strip thickness using x-ray gage and adjusting the strip tension using feedback control system. 1.8 Rolling defects: Mill spring is a defect in which the rolled sheet is thicker than the required thickness because,

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 …

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The cluster mill stand has two work rolls and four or more backup rolls. The number of backup or supporting-rolls depends upon the amount of support needed for the work (small diameter) rolls. Cluster mill is normally used in cold-rolling operation. The cluster mill stand can have six rolls, 12 rolls, or 20 rolls.

Quality of the strips at the exit of hot continuous rolling mainly depends on the finishing mill. The change of strip width and thickness is caused by the rolling force from the vertical stand and horizontal stand in finishing rolling. The main factors affecting strip steel quality include rolling force, reduction position, inlet temperature ...

The rolling process is shown in Fig. 2.1: Rolling is done both hot and cold. It is accomplishes in rolling mills. A rolling mill is a complex machine having two or more working rollers, supporting rollers, roll stands, drive motor, reducing gear, flywheel, coupling gear etc. Rollers may be plain or grooved depends upon the shape of rolled product.