文档介绍：辽宁科技大学本科生毕业设计第 1页 Rolling conditions in hot strip mills and their influence on the performance of work rolls Summary . The mechanical rolling conditions inhot strip mills are precisely defined by variables,which are taken directly from the rolling scheduleseperation force,torque,speed,strip thickness )or calculated from figures of the rolling schedule and dimensions of the mill(strip reduction,roll diameter etc).These variables allow to describle the mechanical rolling conditions of all passes in roughing and finishing mills . These variables should be supplemented by the metallurgical rolling conditions .They then give basic information on the conditions which determine wear(specific load ,wear speed)and fire crazing(co-efficient of heat ration etc). There isa good chance to use the experiences of other mills with various roll grades by parison-as long as the rolling conditions are method is limited by “ abnormal rolling conditions ”, which require totally different roll grades,although if it would be much better to eliminate the abnormal conditions. Introduction .inhot strip mills,slabs of150 to250 mm thick are rolled to to12 mm hot strip mills consist of roughing and finishing configuration of the roughing mills varies widely .A mill with one reversing stand and one or two continuous roughing stands is called a% conditions mill and a mill with 4 to6 conditions roughing stands is called a continuous mill . In 3/4 continuous and continuous mills ,the first stands are usually two high stands while the remainder are 4 high addition to these horizontal stands,several edgers are also used .The finishing mills have a minimum of4 stands but normally have 6 to7 stands. Rolling conditions vary from mill to mill,stand to stand and pass to configurations are designed for a desired total stip(thickness)reduction,however,each stand is limited in strip reduction by the maximum separation force, maximum torq