down coiler hot rolling mill

The Modular Coil Shuttle System from Primetals Technologies was designed to meet the logistics requirements of almost any cold- or hot-­rolling facility thanks to its modular design and its smart and flexible components. This achievement is attributable (All components intended for strip coiling have a reduced width). During uncoiling, the former trans-fer bar tail runs into the finishing mill as transfer bar head. TopPlan flatness gauge in front of the down coiler in a hot strip mill. Down Coiler POSCO E&C Total Solution Provider ISSUE 8 - DECEMBER 2015 03 ISSUE 8 DECEMBER 2015 Furthermore, Down Coiler of Gwangyang No.4 Hot Strip Mill (HSM) also has demonstrated the robustness of hot rolling mill and its precise control, as well as its safe operation and efficient maintenance. Not surprisingly, as the material gets thinner, the speeds increase dramatically. They are designed and built-to-order to specifically accomplish an end product or process. SMS DEMAG Hot Strip Mills 8 The coilbox arranged between the roughing stand and the finishing mill of a hot rolling mill forms coils of transfer bars, thus serving as both material and heat accumulator. The coilers are indispensable important equipment in hot strip rolling line. Custom Gearing. The maximum rolling force, torque and speed are 1500kN, 13kN-m and 70 rpm respectively. 3) To realize a high-productivity hot-rolling mill by replac-ing the computer control system with one of the latest View Angelo Torre’s profile on LinkedIn, the world’s largest professional community. (Cl. satyendra; December 22, 2013; 0 Comments ; AGC, coiler, HGC. Ready to send to clients. Almost 40 % of the 140 conven-tional hot strip mills currently in operation all over the world were built between 1960 and 1970. Cropping control. Comments. AWC. Hot strip rolling steel sheet delivered from the finishing mill stands enters between the upper and bottom pinch rolls as shown in Fig. On the initial section the new system transfers coils on their side with the hot coil store or to the pickling line in the cold rolling mill, Fig. 1. Strip damage due to handling has been reduced by the modernisation. The has permitted further quality improvements and cost reductions. Solutions: SPOT R100 or LSP-HD 10. The function of the hot strip mill down-coiler is to catch the strip as it leaves the final finishing stand and divert it around a mandrel so that it forms a coil. Two-High: Generally, a 2-HI mill is used for hot or cold breakdown and finishing of bar, sheet or strip. down coiler hot rolling mill . A multi-stand hot strip rolling mill has a pinch roll assembly downstream of the last stand and before the coiler and a shapemeter roll is located between the last stand and the pinch roll assembly so as to engage with the strip. Application of Hot Rolling Lubrication on a Reversing Coil/Plate Mill Roll lubrication was introduced to the 4-high Steckel mill at Nucor Steel Tuscaloosa Inc. in 2011. The plant is facilitated with Hot Rolling Mill which can roll both stainless & carbon steels & the mill caters mainly to the input needs of stainless steel coils for the cold rolling mills. It was found that the benefits included a significant extension to roll service life and notable reduction of mill torque. Hot Roughing Mill Hot Finish Mill Cold Rolling Mill Maximum Thickness > 400 mm 20-50 mm 3-20 mm Minimum Thickness 20-50 mm 3-20 mm 0.100 mm Rolling speeds (meters per min) ~ 100 ~ 1000 ~ 2000 Coil box, Reheating furnace, Main Features of a modern Hot Strip Mill. sides of the mill stand there are two gas-fired hot coiling steckel furnaces with heated coiler drums onto which the coil is coiled during each successive pass. Casts slab goes for rolling into hot rolled coil in 1.5-12.7 mm gauges and cold rolled coil up to 3.6 mm gauges. Crane Rope Drums. The Hot Rolling Process. The primary function of the Hot Strip Mill is to reheat semi-finished steel slabs of steel nearly to their melting point, then roll them thinner and longer through 12 successive rolling mill stands driven by motors totaling 77,000 hp, and finally coiling up the lengthened steel sheet for transport to the next process. 2.1 Experimental set up. When the desired steel gauge is reached, after three, five or seven passes, it runs out of the mill stand, via roller tables to the down coiler. SMS SIEMAG Hot Strip Mills 2 ADAPTING existing hot strip mills to present-day market requirements Owing to their size and high investment volume, hot strip mills have an extremely long life. Hot Rolling Mill complex is equipped with walking beam reheating furnace, primary descaler, 4-hi reversing roughing mill, 4-high reversing Steckel Mill, down coiler, laminar cooling & roll grinding machines, procured from world renowned suppliers. Runout Table Water System The ROT high-volume water spray system used to cool the hot strip prior to coiling was the system installed when the mill was originally commissioned. Hot/Cold charge in the WB furnace Steckel mill rolling Down-coiler for coiled plates In-line plate finishing facilities ADVANTAGES Energy saving through hot charge Higher rolling temperature Reduced number of rolling passes No need of a roughing stand Lower rolling power Thinner final gauges Centering control. Also, the down coiler its self has a special configuration of 4 four wrapper rolls which enables smooth and quality coiling under demanding conditions. Some types of FENN rolling mills include: FENN offers a full range of mill types for the production of precision strip in straight lengths or coil to coil rolling. In a hot rolling mill process, the steel gets heated at extremely high temperature, which is generally above 1100°C. TopPlan flatness gauge in front of the down coiler in a hot strip mill. The mandrel-less coil box contributes further to reducing the temperature drop at the coil inner wraps in comparison with the mandrel-type coil box. In most modem hot rolling procedure, the strips are coiled up in continuity．Coiling is the last key production step in hot rolling procedure, which is done by the coilers. (Roll forming: http://youtu.be/k6iODHla6qY)This film takes you through the processes within a hot rolling mill. Carrousel Coiler. Please contact your Xtek Europe sales representative to put Xtek to work at your facility. Tracking. One of such hot- rolling sheet mill shops is operated at Hoesch Hohenlimburg/GERMANY (Figure 3). FENN offers a full range of mill types for the production of precision strip in straight lengths or coil to coil rolling. Two-High: Generally, a 2-HI mill is used for hot or cold breakdown and finishing of bar, sheet or strip. Measuring steel temperature prior to coiling provides an essential quality control measurement. VDO : PROCESS ( DOWN COILER PROCESS ) After being blown dry strip is then passed into the coil winding machine (Down coiler) Marking the band roll and will have finished rolling. The primary function of the conventional hot strip mill (HSM) is to reheat the semi-finished steel slabs (rolled or continuously cast) to the rolling temperatures and then to roll them thinner and longer through a series of rolling mill stands driven by large motors and finally coiling up the lengthened steel sheet for its easy handling and transport. 7 at a high speed under high temperature, changes its travelling course downward toward the coiler below and coiled. The coil box enables a shorter distance between the roughing mill and the finishing mill in a new plant as well as minimizes the temperature drop of the transfer bar entering the finishing mill. This is an alternative option to the down coiler. The strip shape immediately after the finish rolling is measured with a shape We guarantee that your information will not be divulged to … After the grains deform during processing, they recrystallize, which maintains an equiaxed microstructure and prevents the metal from work hardening. temperature between 1,000°F and 1,250°F and into one of three down coilers. 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. the finishing mill stands of a hot rolling mill, the strip is cooled by the cooling equipment of a run out table (ROT) at a cooling rate and a cooling pattern prescribed according to steel grade and thickness and then, it is wound into a coil on a down coiler (DC). If you have any questions or good suggestions on our products and site, or if you want to know more information about our products, please write them and send to us, we will contact you within one business day. There are two down coilers, i.e. John G. Lenard, in Primer on Flat Rolling (Second Edition), 2014 1.2.5 Cooling. The following Xtek products are manufactured in North America, but supported by our European Service and Sales group: Mill Pinions. Main Features of a modern Hot Strip Mill. From the exit of reheat furnace to down coiler, DELTA hot metal detectors, infrared scanner and laser measuring sensors are extensively used for detection, edge positioning and measurement. The Hot Rolling Process The primary function of the Hot Strip Mill is to reheat semi-finished steel slabs of steel nearly to their melting point, then roll them thinner and longer through 12 successive rolling mill stands driven by motors totaling 77,000 hp, and finally coiling up the lengthened steel sheet for transport to the next process. 2) To increase productivity by reducing the thickness of hot-rolled coils, thereby effecting pass cutting in the cold-rolling process. Angelo has 3 jobs listed on their profile. Their main task is to coil the strip out of the finishing mill, and then transport to the next The invention relates to a method for expanding the use of a coiling and uncoiling station (coilbox) located between the roughing train and the finishing train for rolled strip material in hot-rolling mills. Rolling mills are not a standard machine tool, nor are they built for stock. BLH Nobel can provide sensors and complete measurement systems that are highly durable and withstand the extremely harsh environment in the steel industry production sites. Primetals Technologies were the first in the world to develop a hot rolling carrousel coiler. cifically can body stock--and increasing product coil diameter. A total of five centrifugal recirculation pumps rated at 15,000 gallons per minute (GPM) and Delta SAS Zone Aéroparc 2 12, rue des Cigognes 67960 ENTZHEIM FRANCE Phone : +33 388 78 21 01 Fax : +33 388 76 02 29 E-mail : info@deltasensor.eu Coil logistics tend to vary significantly between rolling plants, as no two plant layouts will ever be identical. This paper will describe the mechanism of lubrication in Down Coiler for coiling of narrow strips (width up to 800 mm) For strips with smaller widths, light-weight down coilers are used. Hot Strip Mill - Plate Mill. Industrial Gearboxes. Vertical rolling mill 4-Hi roughing mill Waste ejection device Hot coil box Cutting head and tail flying shears High pressure water dephosphorization device before finishing rolling Finishing mill Laminar cooling device Down coiler Discharging car Walking conveyor Coil inspection line Rolls gap / guides control. At one point during the industrial revolution in America, the United States led the world in hot and cold rolling, plate mills, slabbing mills and blooming mills. Applications on Dofasco’s finished HRC are in construction and sheet piling. A hot strip rolling mill comprises a strip front-end arresting device arranged between the finishing mill and the down-coiler, and the strip front-end arresting device holds a front-end of the strip and moves from an exit of the finishing mill to the down-coiler at high speed while it gives a tension to the strip. Thyssenkrupp to permanently shut down hot-rolling mill at Bochum facility in Germany German steelmaker Thyssenkrupp plans to close the flat hot-rolling mill at its Bochum plant as part of the company’s Steel Strategy 20-30, the company told Fastmarkets this week. A Hille-100 rolling mill with rolls of 225 mm diameter and 254 mm length, driven by a variable speed DC motor of 75 horse power, was used. Down Coiler – Pinch Rolls. Hot rolling is a metalworking process that occurs above the recrystallization temperature of the material. 72-148) This invention'relatesto an apparatus for coilingstrip material and, more particularly, to a coiler for coiling hot metallic strips as they issue from a hot strip rolling mill. A wide range of sizes with separating force capacities from 10,000 lbs. Below-the-hook Lifting Equipment. A downcoiler coils the finished steel strip of a hot strip mill onto a high temperature mandrel. The sensor roll nitrided surface hardness is 65 to 70 HRC. HOT ROLLING MILLS. The starting material is usually large pieces of metal, like semi-finished casting products, such as slabs, blooms, and billets. I summarizes the typical thicknesses and rolling speeds for each mill type. The strip enters the downcoiler from a pinch roll and is immediately formed around the mandrel using wrapper rolls. At that time, these mills The objective of a hot strip mill (HSM) is to reheat and roll thick … AMETEK Land recommends the SPOT R100 ratio thermometer for this application.

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