EUROPEAN STEEL TECHNOLOGY AND APPLICATION DAYS 2017 - ESTAD 2017

Yield and economy during cold rolling of flat products depend on developing high capacity components fulfilling further increasing customers demands for cost and resource effective production of steel strip material. The paper gives an overview of the latest developments for high capacity components and tools of SMS group for cold rolling tandem mills and cold reversing mills. The SMS components cover the fields’ mill mechanics, electric and automation as well as mill reliability and customer strip quality figures in case of modernization tasks as well as erection of new mills. Regarding cold strip mills the topics according to material flow are treated as follows: • TRC® rolling assistance system with mechanical roll gap measurement in the strip entering phase. Using the roll gap assistance system results in an increase in yield of up to 1.5% due to reduced off-gauge weight. • High Torque spindles for the mill train drives transmitting rolling torques even using smaller work roll diameters or an extended mill capability for more demanding grades in existing mills with space restrictions. • Ultra-Low Vibration Gear (UVG) with advanced gear geometry to eliminate drive oscillation and vibrations and to reduce chatter marks even at higher rolling speeds. • Twin reel – carousel tension reel with an operator and drive side supported mandrel providing coiling of extended product mix and increased coil eye stability. • New generation fume exhaust system giving a reduced exhaust in the interstand area fulfilling strictest environmental demands. Further the topics Industry 4.0 applications and PQA-techniques for thoroughgoing quality assessment in cold rolling mills are discussed. Key words: Cold rolling tandem and reversing mill, Industry 4.0, PQA, mill modernization, mill erection, high capacity mill components