2 high reversible mill with 750 mm diameter rolls
From plates, 400 mm wide and 3.1 mm thick sheet rolls, it is desired to manufacture rolls of Cu and low carbon steel sheets 400 mm wide and 2.5 mm thick. The rolling mill available is of the reversible "four-high" type with 150 mm diameter work rollers and a maximum force application capacity of 1MN.
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Cold Rolling Methods of Cold Rolling Mill
The length of roll body is between 100-600 mm and the diameter of the roll is between 100-300 mm. Most of these rolling mills have uncoilers and coilers. These mills are mainly used to produce narrow strips below 600 mm or flat rolled narrow strips with rolling speed ranging from 1.2 to 2.0m/s.
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Solved A series of cold rolling operations are to be used to
A series of cold rolling operations are to be used to reduce the thickness of a metal plate from 50 mm to 20 mm in a reversing two-high mill. Roll diameter = 600 mm, and coefficient of friction between rolls and work = 0.15. The specification is that the draft is to be equal on each pass. Determine (a) minimum number of passes required.
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Rolling Mills: 6 Different Types of Rolling Mills …
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Design of a Kind of Backup Roll Contour Used in Four-High …
2.1. Configurations and Problems of Roll Contour. The research of this paper relies on certain 1780 mm hot strip rolling line in China. As shown in Fig. 1, mills of this hot rolling line include an edge rolling mill (E1), four-high reversible roughing mill (RM) and seven stands of four-high finishing mills (FM).Currently, work rolls of stand 1 to stand 4 in finishing …
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350 2-high reversible hot Rolling Mill stands
Buy 350 2-high reversible hot Rolling Mill stands from Machine Business Opportunities, 350 2-high reversible hot Rolling Mill stands specifications: 1.Design HOT rolling mill, 2.Rebar rolling mill product lines, 3.ISO9001, 4.Steel hot rolling mills, 5.Rolling mill D250-850mm ... Min. Roll Dia.(mm) 890: 730: 630. 630: Roller width(mm) 850: 750: ...
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Mill Roll Classification and Material Selection/Mill Roll
3.Forged Steel Roll Alloy forged steel rolls, high chromium forged steel rolls, forged high speed steel rolls, etc. 4.Special Roll Carbide Roll, Ceramic Steel Roll. C Classification by mill roll ...
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Distribution in Steel Sheets Rolled in a Large-Diameter …
450 mm two-high reversible mill with a rolling speed of 1.3 m/s, and the total reduction was 76%. ... a large strain, a rolling mill with a large roll diameter of 624 mm was used in steel sheet hot rolling without a lubricant. 2. Experimental Procedure A low-carbon niobium (Nb)-microalloyed steel with a chemical composition of 0.16 C, 0.2 Si, ...
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Rolling
75 mm thick by 250 mm wide slab of AISI 4135 steel is being cold- rolled to a thickness of 60 mm in a single pass. A two-high non- reversing rolling mill (shown below) with 750 …
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Increase in Efficiency of Heat Treatment of Large-Sized Mill Rolls …
The mill rolls are manufactured from high-hardenability steels. They should have high strength of the surface layer and uniform hardness along the length of the roll. ... For example, the process of heating a 1200 mm diameter roll to 750°C through the depth of 100 mm takes several hours regardless of the current frequency. During progressive ...
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2 high reversible mill with 750 mm diameter rolls
Grinding (HIG) mills and High Pressure Grinding Rolls ... crushed ore with a particle size range up to 50 mm for ... ends of the mill are identical and reversible. ... diameter. As with the hydrodynamic sleeve bearings, high-pressure oil is delivered to the center of ... The two-pad arrangement ... Smaller mills up to 750 kW are. [PDF]
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Billet Rolling Mill
The main features of the blooming mill are: a two-roll reversible single stand mill with a roll diameter of 750~1500mm; Drive with high power (up to 14000kW), low speed, wide speed regulation range (0~30~120 rpm), and good acceleration and braking performance; The upper roll has a large rise (up to 2700 mm for slab blooming mill) and …
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High-Tech Tandem Cold Mills Cold rolling technology …
Width 900 to 1,890 mm Thickness 1.2 to 6.0 mm Coil outer diameter 2,600 mm Max. coil weight 44,000 kg Coil inner diameter 720 mm Strip data, exit section Width 900 to 1,890 mm Thickness 0.25 to 3.2 mm Coil outer diameter 2,600 mm Max. coil weight 44,000 kg Coil inner diameter 610 mm Plant configuration Five-stand tandem cold mill com-
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Coupling Mechanism of Control on Strip Profile and
It was designed for a six-high reversal mill with a work roll diameter of 240 mm. ... The Hertzian contact theory can be used to explain the deformation of the contact position between rollers ...
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Cold Rolling Mills Reversible
Price will vary between Rs. 40 lacs to Rs. 02 crore (negotiable) as per your requirement and technical customization of milling machine. The material from reheating is fed to hot rolling mill which a reversible mill by pre decided reduction in thickness thus making the grain compaction of material norrnally from 120 ml -13ml thickness in 5-6 passess
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Rolling
A 75 mm thick by 250 mm wide slab of AISI 4135 steel is being cold-rolled to a thickness of 60 mm in a single pass. A two-high non-reversing rolling mill (shown below) with 750 mm diameter rolls made of tool steel is available for this task. The rolling mill has a power capacity of 5 MW per roll. The rolls rotate at a constant angular speed
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Silicon Steel Strip Profile Control Technology for Six-High …
It was designed for a six-high reversal mill with a work roll diameter of 240 mm. Cao et al. proposed a single tapered 0.8 mm × 120 mm (height × length) contour for a four-high tandem rolling mill, in which the work roll diameter was 600 mm. Sun et al. developed a work roll contour for the first stand of a six-high tandem rolling process.
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2 High Rolling Mill – Element Machinery
Rolling mills consisting of two rolls or known as a 2 High rolling mill is used for anything from temper pass to breakdown of material. The 2 …
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Optimization of Rolling Schedule for Single-Stand …
The platform of the verification experiment adopts the self-developed 1380 mm single-stand six-high reversible cold rolling mill automation system. The automation system adopts a two-level …
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03 rolling of metals | PPT
6 High Reversible Cold Rolling Mill by Steel Cosmos. ... Roll diameter 10 mm with as many as 18 backing rolls. Suranaree University of Technology Tapany Udomphol Jan-Mar 2007 60. • Frictional force is needed to pull the metal into the rolls and responsible for a large portion of the rolling load. • High friction results in high rolling load ...
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2 high reversible mill with 750 mm diameter rolls
2 High Reversible Mill With 750 Mm Diameter Rolls. The strip has a width of 25 mm and an initial thickness of h o = mm. A preliminary process design suggests a 40 reduction in a single pass on a rolling mill with 150 mm diameter rolls. If the roll surface speed is 1 m/s and the coefficient of friction is μ = . الحصول على السعر USA #
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2-Hi Rolling Mill | Cold Rolling Mill Manufacturer
2-Hi Rolling Mill is used to roll raw material thickness ≤ 4 mm, width ≥ 200 mm, made of plain carbon steel, low alloy steel, stainless steel and non-ferrous metal strip, used for …
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Reversible Rolling Mill Manufacturers & Suppliers in …
Ask Price. Our reversible rolling mills guarantee high productivity, with speeds of up to 2000 m/min and quick roll change, automatic load feed and control by computerised …
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Cold Rolling Mill
Operation 2-Stand 4-Hi Temper & Double Reduction Mill Entry S-Bridle Rolls (2 rolls) (CQ, DQ, DDQ) Roll Diameter 510 mm ... Mill Stand #2 Work Roll Diameter: Drive Motor 2 x 750 kW @ 520/1,400 rpm Temper Mill (both Stands) 510 mm ~ 560 mm Pinion Stand 1.5 : 1 (2-inputs, 2-outputs) ... Work Roll Maximum Diameter: 340 mm (Six high solution ...
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High Reversible Mill With 750 Mm Diameter Rolls
high reversible mill with mm diameter rolls. X-Roll® high-tech, six-high mill stand. To suit the very wide material spectrum – from alloyed high-grade steels up to and including heavily decarburized mild steels – the work-roll diameter can vary between 140 and 240 mm. Designed to attain extremely low final thicknesses, the stand reduces frictional …
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2 high reversible mill with 750 mm diameter rolls
Patent US5789066 - Method and device for... Aug 4, 1998 ... A metal sheet according to claim 12, wherein the inside diameter of the .... applied to the rolls is higher than 10 kN/mm and the tension between two reduction ... 550 to 750 MPa 130 to 240 MPa(EuronormEN10002-1)Elongation in 50 mm ...
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2-High Rolling Mills | Metal Processing Machinery
Two-high rolling mills have a unique advantage in cost savings because a 2-high configuration is less expensive to manufacture. A 2-high mill can …
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How to optimize the roughing rolling mill roll to …
After the introduction of semi-high-speed steel rolls, the life of roughing mill work rolls has been greatly improved, and the standard process of 7-pass reduction has been changed to 5-pass reduction, …
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2 high reversible mill with 750 mm diameter rolls
Universal Mill Stand - MWE - Mill Solutions (in english) Roll neck diameter: horizontal rolls: 330 mm: Axial roll adjustment: ± 2.5 mm: Rolling torque: max. 350 kNm: Roll diameter (horizontal rolls) Universal mode: max. 850 mm: min. 750 mm: Roll diameter (horizontal rolls) Two hight mode: max. 670 mm: min. 540 mm: Roll diameter (vertical …
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Advanced Design of Work Roll Contours for Different Roll Mill …
NGO strips are first hot rolled shown in Fig. 2, then if the thickness of the hot rolled strip is thicker than 2.2 mm thickness, it will be cold rolled by cold tandem mills shown in Fig. 3, otherwise it will be cold rolled by cold reversing mills shown in Fig. 4.The reversing mill's work roll diameter is 240 mm, which is significantly smaller than cold tandem …
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