Rolling is the process of reducing the thickness or changing the cross section of a long workpiece by compressive forces applied through a set of rolls, as shown in figure 51. Carbon steel 6 hi cold rolling mill, hydraulic pressure down cold rolling machine. Learn more lg80 tworoller cold pilger mill the features of lg80 tworoller cold pilger mill. Hardened temper rolling mill four roller for carbon steel high elasticity. In section 3, a mathematical model has been driven for singlestand cold rolling mill. Hotrolled, pickled coils are fed into the cold rolling mill from an entry. According to the number of rolls the rolling mill can be designed as 20 hi, 12hi, 8 hi, 6 hi, 4 hi and 2 hi rolling mills. Davy mckee manufacturer davymckee new 1989 type of mill. Other steel is annealed and rolled to achieve the required mechanical properties.
Cold rolling mills yogijidigi can be your preferred supplier for cold rolling mills starting from planning, engineering, implementation and modernization of your plant. In section 5, thickness control with roll eccentricity compensation has been proposed. We can also provide total engineering, including auxiliary equipment such as utility facilities, inspection lines and roll shops. Apply to mill operator, finisher, plant operator and more. The final chapter explains the purpose of roll pass design to ensure the maximum output at minimum cost as well as to reduce the roll wear to a minimum. Here, after an acceptable section is produced, the slitting operation will start. Multiroll cold mill stands are described using different terms depending on their type and manufacturer. In section 4, architecture and learning algorithm fuzzy neural networkof have been presented. Video of a 4hi cold rolling mill with automatic gauge control, commissioned by mnc. Hot rolled coil that are cleaned at the pickling line hrp, is being processed at the cold rolling mill total 700,000 tons annual capacity to reduce the thickness to desired values.
Rigid 20 high cold rolling mill machinery, high precision stainless steel rolling mill. If you continue browsing the site, you agree to the use of cookies on this website. It is expected to reduce unrolled portions improvement of yield as well as improvement of productivity. This type of rolling mill is mainly used in offline applications for cold rolling of soft and medium strip and for a wide range. Cold rolling mill the pickled and oiled coil is now moved to the cold rolling mill. The evaluation includes roll deflection, pressure of rolls in contact, roll exit thickness distribution, and so on. Stresses from hertzian pressure in 4high cold mill back up rolls were measured years ago, the results were never published, but of high interest also, maybe later. Cold mill tcm,crm steel plantech proposes a cuttingedge tandem cold mill 4hi 6hi according to the customers needs. Report on best available techniques bat in the german.
Strengths and benefits of the 4high cold rolling mill. A comparison of roberts formulation with the experimental method rajinder singh me deptt. After the reduction of the strip in the tandem cold mill and subsequent annealing, the double cold reduction mills. One stand and two frames are made from fabricated steel plates. Multiroll cold rolling mills are used to process high grade steel strip and nonferrous metal strip. Due to different numbers of rollers, the metal coil cold rolling mill is divided into 2 hi, 4 hi, 6 hi, and 12 hi agc. Optimization of a cold rolling mill thermo fisher scientific. On process optimization for cold rolling mills starting with. Rolling mills cold rolling mills metal rolling mills hot rolling mills rolling mill manufacturers india better technologies for brighter tomorrows cold rolling is a process by which the sheet metal or strip stock is introduced between rollers, and then compressed and squeezed. Cuttingedge coldrolling mills primetals technologies. This book discusses as well the different types of rolls for various rolling mills, including blooming, plate, sheet, sheet bar, small section, heavy product, skin passing, and cold rolling mills. The top countries of suppliers are china, india, and taiwan, china, from which the percentage of cold rolling mill supply is 98%, 1%, and 1% respectively. Single stand 4hi cold mill hand of mill right to left material.
Crm complex6 high reversible cold rolling mill training manual0. New rolling method of reversing cold rolling mill steel plantech. You benefit from our 20high mills because they are packed with stateoftheart mechanics, hydraulics, electrics, and automation. Crm complex6 high reversible cold rolling mill training manual0 slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. The tmt rolling mill plants are generally used to roll out various material beginning from simple rounds, to steel to wire rod in coils, small flats to strips upto 14 width, hbeams to ibeams, channels, angles, plates and hot strips. Intermediate roll contour of 6hi ucm cold rolling mill request pdf. Carbon steel 6 hi cold rolling mill, hydraulic pressure. Each stand has vertically stacked rolls that are powered by huge motors to impart high compressive stresses into the strip. This type of rolling mill is mainly used in offline applications for cold rolling of soft and medium strip and for a wide range of strip widths, as well as for breakdown rolling in offline applications. The diameter of the 6high work rolls amounts to approximately 1. Cold rolling is accomplished by processing steel strip through a series of tandem rolling mill stands. Tworoller cold pilger mill on sales quality tworoller. Forged steel rolls were also improved for cold rolling to give higher hardness penetration after heat treatment by increasing the content of alloying elements.
Cold rolling mill rolls forged roll for cold rolling mills performs as a rolling tool to transform materials under normal room temperature, therefore, it is the most wear and tear spare parts during the rolling process. Review on cold rolling mill roll deformation ijoer. A rolling simulator for the cluster mill, especially the 6hi x and 10hi x type mills besides the conventional 4high mill, has been developed for evaluation of rolling thin strips and foils. Rolling mills cold rolling mills metal rolling mills. Used 1250mm 12hi reversible cold rolling mill,1set of single stand cold rolling mill and 2 sets of double stands cold rolling mill. Agc hydraulic 6 hi cold rolling mill 700mm carbon steel 390m min speed. Ihi has constructed many aluminum rolling mills not only in japan but also in other countries around the world. The main conveying system is with v belt which can m ld40 series threeroller cold pilger mill 1. Recently developed 6hi tcm rolling simulator software tool is based on the existing cold rolling theory with the collaboration of the. Sms group offers various cold roll mill technologies for copper, steel and aluminum like tandem cold mill, 18 hs mill, reversing mill, skin pass mill, single stand cold mill. Request pdf intermediate roll contour of 6hi ucm cold rolling mill in order to solve the problem of flatness defects and roll spalling caused by rolling thin gauge strip in the 1 500 mm ucm.
Development of cluster mill simulator for thin strip and. A basic understanding of the mechanics of rolling mill rolls file. Aluminum 3004 and 5017 alloys mill rolling load design 1,500 u. The number 2 rolls on this cold rolling mill are made of. The main conveying system is with v belt which can make sure equal force, creditable and stable function. The rolls are the main tool for the rolling process and the life of the roll is. A wide variety of cold rolling mill options are available to you, there are 10,182 suppliers who sells cold rolling mill on, mainly located in asia. Processes are different in nature and in output also. Some of the steel is rolled on the six high reversing stand to its final thickness ready for the metal coating line. The homogeneous thickness and high surface quality is maintained at 6 hi reversing mill with the help of afc and agc systems. Strip thickness control of cold rolling mill with roll.
Cold rolling mill on sales quality cold rolling mill. Longstanding experience as a leading supplier of coldrolling mills as a lifecycle partner for coldrolling mills, primetals technologies offers complete solutions and support packages for coldrolling mills that extend from the initial investment idea, to mill planning, layout, engineering and construction, up to turnkey plant installations and fullscale plant modernizations. Cold rolling mill rolls, rolling mill rolls manufacturer. The automatic gauge control agc systems and hydraulic. Request pdf intermediate roll contour of 6hi ucm cold rolling mill in order to solve the problem of flatness defects and roll spalling caused by rolling thin. Chat online 6 high reversible cold rolling mill slideshare. Apr, 2017 this is the complete video of the 1200 mpm speed 1250 mm wide 6hi cold rolling mill commissioned by yogiji digi in march 2017 at aarti rolling mills ltd. Optimization of a cold rolling mill with a high speed xray thickness gauge christopher burnett, thermo fisher scientific, mount airy, md, united states white paper abstract the high speed production achieved by modern cold rolling mills requires reliable and robust thickness sensors. Advances in cold rolling technology t sendzimir inc. In comparison to a 4high mill stand, the utilization range is wider. Intermediate roll contour of 6hi ucm cold rolling mill. With 2%cr, 3%cr, 5%cr material series, we have greatly improved our products both in terms of quality and diversification. The 2hi cold rolling mill is a kind of portable type. Outline of reversing cold rolling mill and rolling method as illustrated in figure 1, a reversing cold rolling mill is structured mainly of a mill proper, a winding machine payoff ree l, an entry winding machine tension reel and a deliverywinding machine tension reel.