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17/03/2014 Rolling mills can use two, three or four rolls. In two-high reversing rolling mills, the rolled metal may pass back and forth through the rolls several times. The disadvantage of reversing mills is that the rolls must be stopped, reversed and then brought back up to rolling speed between each pass. The three-high mill was invented to resolve this drawback. Reversing mills are more expensive ...
Mills are designed in different types of configurations, with the most basic being a two-high non-reversing, which means there are two rolls that only turn in one direction. The two-high reversing mill has rolls that can rotate in both directions, but the disadvantage is that the rolls must be stopped, reversed, and then brought back up to rolling speed between each pass.
Roughing Mill, four-high reverse mill. Roll Separating Force, 4,000 tons maximum. Speed, 314 m/min. maximum. Rolling Specifications. Get Price . Other Steel Mill Equipment - IndustrialExchange Used Industrial ... IEC# 120269 - 66" x 1.687" Diameter, 19 Roll, 4-Hi. ... Roughing Mill to break down slab: 110” Width – 4 High • Rolling Mills: Six Mesta ... Line specs: .530”- .137” thick ...
The roll force model used was a classical slab method with constant friction assumed in the roll gap. For the roughing mill (reversible 4-high) both roll force and roll torque were available so the friction coefficient could be evaluated in addition to the flow stress for each pass. The values were close to 0.3 so it was decided to use this for ...
Roughing Mill four-high reverse mill: Roll Separating Force 4,000 tons maximum: Speed: 314 m/min. maximum: Rolling Specifications; Thickness: 220 to 6.0mm: Width : 2,500mm maximum: Finishing Mill. This rolling mill is a Steckel type of reversing finishing mill capable of producing hot strips with superior thickness precision, surface quality and internal quality. This mill can roll not only ...
17/03/2014 Rolling mills can use two, three or four rolls. In two-high reversing rolling mills, the rolled metal may pass back and forth through the rolls several times. The disadvantage of reversing mills is that the rolls must be stopped, reversed and then brought back up to rolling speed between each pass. The three-high mill was invented to resolve this drawback. Reversing mills are more expensive ...
The roll force model used was a classical slab method with constant friction assumed in the roll gap. For the roughing mill (reversible 4-high) both roll force and roll torque were available so the friction coefficient could be evaluated in addition to the flow stress for each pass. The values were close to 0.3 so it was decided to use this for ...
In this rolling mill, there are two rolls used. Two High Reversing Mill: In this type of mill, the rollers are both adjustable. In these mills, rotation of that two rolls is made in two different directions. In this operation, the metal is passed between two rollers that rotate at the same speed but it is in the opposite direction. It is used in slabbing, plumbing, rail, plate roughing work ...
work roll diameter: 37 : title of specification: 37" x 84" sms two high reversing blooming/roughing mill : manufacturer of equipment: sms : year of manufacture: 1983 : material being rolled: billet blooms : number of stands: 1 : bloom width: 16 : bloom height: 9 : stand (vertical / horizontal) horizontal : roll configuration (2 hi, 3 hi) 2 hi : roll diameter: 37 : roll face: 84 : bearing ...
The roughing mill withstood extreme service conditions with long service cycles for backup and work rolls, a large variety of the same width rolling campaigns, severe and non‐uniform wear contours of backup and work rolls. Analysis of cyclic stress applied on backup rolls indicated that contact stress played a dominant role in rolling contact fatigue which led to spalling on the backup roll ...
In two high reversing rolling mills the rolls rotate ist in one direction and then in the other, so that rolled metal may pass back and forth through the rolls several times. This type is used in pluming and slabing mills and for roughing work in plate , rail , structural and other mills. These are more expensive compared to the non reversing rolling mills. Because of the reversible drive ...
Reversing roughing mill the 2 high reversing universal roughing mill supplied by united engineering corporation is equipped with a vertical edger which controls the width of transfer slab thereby facilitating accurate width control of the rolled strips... Details. Reversing mill plate for sale. High united reversing mill - dietistenpraktijkeetgewoonnl 4 high united reversing mill rolls ...
This type is used in pluming and slabing mills and for roughing. Service Online; hi reversing mill roll. 2014/04/10 Further evolution of the rolling mill came with the introduction of three-high mills in 1853 used for rolling heavy sections citation needed Hot and The two-high reversing mill has rolls that can rotate in To minimize the roll
Key words: Hot Strip Mill, Roughing Stands, Work Rolls, High Chromium Steel, Semi-High-speed Steel Abstract: Two alloys grades for work rolls used in the roughing stand of Hot Strip Mill (HSM) are compared. The first grade known as High Chromium Steel (HCS) is presently the most widely used alloy for such an application, while the second one known as semi- High-speed Steel (semi-HSS) is the ...
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”. The last four roughing mills each incorporate edgers for width control and roll the bar from five to six inches thick ...
In this rolling mill, there are two rolls used. Two High Reversing Mill: In this type of mill, the rollers are both adjustable. In these mills, rotation of that two rolls is made in two different directions. In this operation, the metal is passed between two rollers that rotate at the same speed but it is in the opposite direction. It is used in slabbing, plumbing, rail, plate roughing work ...
16 Nov 2009 , supplied mills account for more than 30% of all long products rolled today on a tonnage basis We take , a critical factor to ensure the high-quality standards of our mill equipment , COLD ROLLING: New 6-High Reversing Mill , Roughing mill entry at , virtually any specification for quenched and tem-
The mill rolls take an initial thickness reduction in preparation for the finishing stands, Steel temperature must be monitored to meet parameters and prevent roll damage. Solutions: SPOT R100 or LSP-HD 10.
The two-high reversing mill has rolls that can rotate in both directions, but the disadvantage is that the rolls must be stopped, reversed, and then brought back up to rolling speed between each pass.A four-high mill has four rolls, two small and two large. Read more. Four Roller Reversible Cold Rolling Mill Roll Forming Machinery 230×720×... Quality Four Roller Reversible Cold Rolling Mill ...
The single stand of a 4-high reversing Steckel mill carries out both roughing and finishing passes. With the increase of mar-ket demand on high-strength low-alloy (HSLA) steels, the mill needs to extend its roughing pass schedule to roll the steels due to the limit of torque. However, an extensive pass schedule does not meet the requirements of mechanical properties, since the strain rate is ...
In a traditional hot mill, aluminum ingots are soaked in furnaces before they are brought to the Reversing or Break-Down Mill to be reduced to a long and slender strip. Once the strip is dramatically reduced, then it is passed on to the Finishing Mill, a series of rolls further down the same line, where it is further reduced to the final thickness before being coiled at the end of the process ...
Key words: Hot Strip Mill, Roughing Stands, Work Rolls, High Chromium Steel, Semi-High-speed Steel Abstract: Two alloys grades for work rolls used in the roughing stand of Hot Strip Mill (HSM) are compared. The first grade known as High Chromium Steel (HCS) is presently the most widely used alloy for such an application, while the second one known as semi- High-speed Steel (semi-HSS) is the ...
In order to solve the serious backup roll spalling of roughing mill during ultra-wide stainless steel rolling process, a 3D elastic deformation finite element model of 4-high roll stacks was ...
equipment > mechanical > rolling mill stands > 2 high mill stands 37" x 84" sms two high reversing roughing stand [ request quote ] title of specification: 37" x 84" sms two high reversing roughing stand : roll dia. 37 : roll face: 84 : roll configuration (h/v) horizontal : manufacturer of equipment: sms : year of manufacture ...
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”. The last four roughing mills each incorporate edgers for width control and roll the bar from five to six inches thick ...
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