A basic understanding of the mechanics of rolling mill rolls file. Pdf a 20hi cluster mill is simply a precision mill used to roll ultrathin andor. Pay off reel, leveler, mill body, tension reel, control panels. Published on galaxie corporation home 50 1270mm x 5. The quality of fag and ina backup rollers is ensured by means of high precision machining and sophisticated measurement methods. Cold rolling mills are cheaper than hot rolling mills. The 20hi mill is a precision mill which has be en widely applied to thin andor high strength mate rial rolling. There are various reasons by which the damage in the cold rolling mill rolls occurs.
The cold rolling mill dms 20hi ecomill with unique design is ready to roll strip down to 40 microns for highend applications at shanghai stal, china. Find sendzimir, demag, waterbury, achenbach, hitachi, mino, nash, and ruesch for sale on machinio. Pdf there are various reasons by which the damage in the cold rolling mill. This saves greasing time of 15 minutes per mandrel. The cold mill produces steel and stainless steel and is also used for aluminum, aluminum foil, and copper.
Review on cold rolling mill roll deformation engineering journal. The special feature in a 20 high mill is the relation between work roll diameter and barrel length. In close partnership with the customer, we therefore continually design, test and develop to productionready status new bearings optimally suited to this application. Fives has improved mandrel greasing substantially by making it a fully automatic rather than manual process. The article describes recent advances on 20hi cluster mill optimization. Comparison of roll deformation in 4hi rolling mill and 20 hi rolling mill. In india now a days mostly 20 hi and 4 hi rolling mills are installed in bi g steel produ ction units. You benefit from our 20high mills because they are packed with stateoftheart mechanics, hydraulics, electrics, and automation. The cold rolling mills are essential to reduce strip thickness while guaranteeing strip surface quality. Cold laminating machines mill uses pressure and adhesive to intercalate materials between sheets of plastic film. The 20 high rolling mill from andritz sundwig is mainly used for cold rolling of metal strip to thinnest final gages and wide range of strip width. 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. Review on 20 hi cold rolling mill rolls and spalling scribd.
Research of flatness defects forming at 20hi steel strips rolling mill. South eastern association of iron and steel seaisi conference. The sundwig 20high cold rolling mill for production of the widest stainless steel precision strip as well as widest strip made of highstrength carbon steel, copper. Review on 20 hi cold rolling mill rolls and spalling free download as pdf file.