##tihuan2##LPR offers custom forged and cast steel rolls to steel mills, steel processing lines and coil service centers.As a dependable roll shop for machine makers that supply to steel mills, our product range includes forged or cast steel work rolls, tension leveling rolls, steering rolls, bridle rolls, furnace rolls, deflector rolls, pinch roll assemblies and roller tables.
WhatsApp: +86 18221755073
##tihuan2##Backup Roll Wipers, Upper Work Roll Air Wipers Cold Reversing Mill 3. 4 Line Features: Exit Shear, X-Ray Gauges, Air Knives for strip drying, Semi Automatic Coil Banding System, Coil ... Back up roll dia-mm 1250-1125 Rolling force-Ton 1500 speed m/min 1500 coolant lpm 6500 Motor power -kW 2*2100 motor speed-rpm 0-464/1695 7
WhatsApp: +86 18221755073
##tihuan2##rolling mill, dedicated roll cooling systems are required to fulfill the required functions. ... absorbed by the work rolls – figure 1 .Heat is carried by the rolling stock (by virtue of its temperature) and some is lost to the air and to the wash-off coolant before reaching
WhatsApp: +86 18221755073
##tihuan2##Medium and small section steel rolls are generally divided into rough rolling, medium rolling and finishing rolling, and the material selection should be determined …
WhatsApp: +86 18221755073
##tihuan2##From producing pipes and tubes to wire rods, rails, and seamless rings, rolling mills enable the efficient transformation of various metals and alloys. For instance, rolling mills shape copper, brass, and …
WhatsApp: +86 18221755073
##tihuan2##Whether work rolls for creating the highest surface quality, or backup rolls to support the mill's maximum roll forces - Gontermann-Peipers supplies the technology ensuring optimal interaction between tooling and process …
WhatsApp: +86 18221755073
##tihuan2##1. Introduction. Modern hot rolling mills (HSMs) are the backbone equipment for strip production, and one of the key equipment for intelligent steel manufacturing [1].High-performance electrical steel is one of the imperative raw material products for modernization construction, high-quality development, and people's life, of which the …
WhatsApp: +86 18221755073
##tihuan2##The back-up roll supports the work roll. By contacting the work roll with the workpiece, the diameter of the work roll can be reduced and the stiffness of the work roll can be enhanced. Cold rolling rolls are the main components of cold rolling mills. The roll consists of three parts: roll body, roll neck and shaft head.
WhatsApp: +86 18221755073
##tihuan2##These rolling mill applications include heavy ingot breakdown, laboratory research, coil-to-coil rolling, and precision strips. Our rolling mills are available in 2Hi and 4Hi roll configurations. Mills may be either work roll …
WhatsApp: +86 18221755073
##tihuan2##The remanufacturing of rolling mill rolls offers significant economic, environmental, and societal benefits. However, the uncertainty surrounding the performance degradation of retired rolls and its associated timeline poses challenges to the efficiency and cost-effectiveness of roll remanufacturing operations. Therefore, the real-time …
WhatsApp: +86 18221755073
##tihuan2##Catastrophic failure of a forged work roll used in a cold rolling mill was investigated. The spalled roll showed fatigue arrest marks in a smooth continuous path along the circumferential direction.
WhatsApp: +86 18221755073
##tihuan2##2. Rolling Cluster Mill: ( Types of Rolling Mills ) A rolling mill with four levels is known as a cluster rolling mill. Each of the two working rolls within this rolling mill is backed by two or bigger backup rollers that can roll rigid materials. Rolls with a minor diameter but a very long length may be required to get the effect sought.
WhatsApp: +86 18221755073
##tihuan2##（2）In the quadruple cold rolling mill, most of the work rolls have a crown, and the backup rolls are cylindrical. If the total crown is not large, only the upper work roll has a crown, and the lower work roll is cylindrical. If the crown is large, the total crown is evenly distributed on the upper and lower work rolls. Control of work rolls ...
WhatsApp: +86 18221755073
##tihuan2##During the hot rolling process, the work rolls suffer severe wear, resulting in a relatively short lifespan. Severe roll wear can adversely affect the strip shape while introducing roll wear into the crown calculation model can enhance the model accuracy. Therefore, it is crucial to quantify roll wear during the rolling process. Roll wear is a …
WhatsApp: +86 18221755073
##tihuan2##Rolling mills, on the other hand, work by passing different metals through one or more sets of rolls to compress loose material, reduce thickness, or establish a uniform thickness. Steewo Engineers rolling mills can be custom-designed and built to help metal manufacturers perform test runs to refine their processes for maximum productivity and ...
WhatsApp: +86 18221755073
##tihuan2##The paper proposes an approach for thermal stress evaluation and fatigue life assessment of work rolls in hot rolling mills. Temperature and thermal stress distributions are calculated with a ...
WhatsApp: +86 18221755073
##tihuan2##The work rolls of the four-high mill are driven while the back-up rolls are friction driven. The four-high mill is used for rolling of plates and for hot and cold rolling of steel strip. ... Fig 2 Rolling mill rolls. The roll body is the most important part of the work roll, because it works on the most difficult conditions consisting of high ...
WhatsApp: +86 18221755073
##tihuan2##Blooming mills, continuous billet rolling mills, large section steel and rail beam rolling mills, hot-rolled sheet and strip mills, scale breaking and edge rolling machines, section steel universal rolling mills, and small section steel, wire and bar rolling mills Roughing stands and other rolling mills The rolls used are mostly produced by the integral …
WhatsApp: +86 18221755073
##tihuan2##The WHEMCO companies in Pennsylvania and Ohio, USA manufacture a full range of mill rolls – spun cast iron, cast steel and forged steel. We manufacture both cast and forged rolls for the most flat hot and cold …
WhatsApp: +86 18221755073
##tihuan2##LMM high-speed steel rolls have higher steel passing per groove (times) due to their good wear resistance, which saves roll changing time, improves rolling mill operation rate, reduces roll consumption, …
WhatsApp: +86 18221755073
##tihuan2##The roll deformation model of the six-high rolling mill is one of the core models of the strip shape control theory. The influence function method (IFM) is a numerical method applied to solve the roll deformation problem. This study aims to address the problems of slow calculation speed and insufficient calculation accuracy of IFM in …
WhatsApp: +86 18221755073
##tihuan2##CVC (Continuous Variable Crown) work roll contour technology since its invention has been applied in more than 150 hot rolling mills worldwide for controlling strip shape.
WhatsApp: +86 18221755073
##tihuan2##It is generally limited to 2-Hi work rolls of any grade in hot rolling mill stands. This kind of breakage can be caused by (i) high rolling loads combined with a weak roll design, (ii) rolling abnormalities with …
WhatsApp: +86 18221755073
##tihuan2##calculating the work roll wear of a rolling cycle, and the actual situation of the roll wear are measured with high precision grinding machine. The calculation scheme of work roll wear is shown in ...
WhatsApp: +86 18221755073
##tihuan2##LMM GROUP is one of the professional roll manufacturing base in China, which supply all kinds of large-size rolls for iron and steel enterprises with production capacity of 100,000 tons of all kinds of hot strip mill rolls, section mill rolls, rod mill rolls, cold rolling mill rolls, casting and forging backup rolls.
WhatsApp: +86 18221755073
##tihuan2##Fig 4 Roll configurations in rolling mills. Two-high mill roll configuration – This is the most commonly used rolling mill configuration. In this configuration, there are two horizontally mounted rolls. The rolling mill motor drives either both rolls (top and bottom) or only one roll (normally the bottom roll) with the top roll rotating due to the …
WhatsApp: +86 18221755073
##tihuan2##Our rolling mills are available in 2Hi and 4Hi roll configurations. Mills may be either work roll-driven, back-up roll-driven, or a combination of both. 4HI mills with work rolls are offered as small as .500″ (12.7mm) in diameter; 2HI mills are offered with rolls up to 16″ (400mm) in diameter
WhatsApp: +86 18221755073
##tihuan2##The selection of rolls for the same rolling mill is not uniform, and the most suitable rolls should be determined according to the specific usage and operating conditions of the rolling mill. The work rolls in the post-finish rolling section (F4-F7) are used in the last few shifts, so the hardness, wear resistance, thermal crack resistance …
WhatsApp: +86 18221755073
##tihuan2##Rolling mill rolls manufacture. LMM both cast and forged rolls for the most flat hot and cold rolling applications. We are now the sole producer of both cast work rolls and …
WhatsApp: +86 18221755073
0086-21-58386256
Our office time Mon - Sat 10.00AM - 7.00PM Sunday CLOSED
Copyright © 2024.Con All rights reserved.sitemap