Method for comprehensively optimizing rolling technological parameter of dual UCM type secondary cold mill train

The invention discloses a method for comprehensively optimizing a rolling technological parameter of a dual UCM type secondary cold mill train. A set of method suitable for comprehensively optimizing the rolling technological parameter of the dual UCM type secondary cold mill train is established by carrying out a large number of field tests and theoretical researches, fully combining equipment and technique characteristics of a secondary cold rolling process and comprehensively according to the outlet profile shape, forward slip and rolling speed of a belt material. Metal model parameters ofinlet tension, outlet tension, tension between racks, screw-down rate (rolling pressure) of each rack and the like in the secondary cold rolling process and roller parameters of middle roller play amount between NO.1 and No.2 racks, bent roller force between the NO.1 and NO.2 racks and the like are optimized, so the rolling speed and the product quality are improved, and the productivity and yield of the cold mill train a