Research And Development Of Wire Rolling Schedule Optimization Design System

Roll pass design of high-peed wire mill is the key step in the production of wire mills. It is a difficult problem faced by roll pass member too.Roll pass design has to promise acceptable deformations of roll parts and roll speed limits of electromotor ,it also has to promise that metal volume runoff in every step should be the same. Therefore the traditional design based on rule-of-thumb and knowledge is out-of-date.A system for high-speed wire rolling schedule designation has been developed in this thesis. The design principle of CARD is the equality of metal volume runoff in every step;The main function of CARD is to make out reasonable roll pass throuth control of continuous roll parameters in each step .Based on reliable empirical formulas,CARD system accounted for some important parameters such as roll force.An arithmetic theory based on fuzzy self-adaptation was introduced into the CARD (computer auxiliary roll pass design) system,which transforms the multi-objective functions under the same level constraints into the simple target function, and uses the muti-step dynamic programming algorithms to carry out the optimization of the pass rolls. The results of the actual production application indicated that the quality of various rolling regulations designed by this CARD system is higher than the original regulations obviously, the total energy consumption of the various wire rods products' rolling has been reduced by 1% to 5%, which has made the balanced continuous load rolling with micro tensility come true. At the end of the design process,through application of CAD re-development technology the system can draw precise draft automatically.