Research progress on high precision profile contour and flatness control of electrical steel for new generation of high-tech wide strip rolling mills
Schedule-free rolling is the necessary way to realize flexible integrated production organization and pursue the maximum pro-duction efficiency.Profile contour and flatness control(PCFC)is always a bottleneck problem restricting the schedule-free rolling of elec-trical steel.The international research on the new generation high-tech wide strip rolling mill types and the technical characteristics of the PCFC and its increasing complexity were described.Based on the thermal simulation and mathematical model,the high-temperature con-stitutive relationship of the entire rolling process of electrical steel was established,the integrated simulation model of the thermoplastic deformation process of electrical steel was established,and the asymmetric self-compensating rolling action mechanism which can simulta-neously control the uneven deformation and uneven wear of entire rolling process of electrically steel was original constructed.A high-pre-cision fusion control method of non-symmetrical self-compensating roll contours,hydraulic roll shifting system and hydraulic roll bending system driven by data and mechanism was proposed.Combined with the production practice,the new generation high-tech PAI(PCFC All-in-one Integrated,"π"briefly)hot continuous strip free-schedule rolling process of full profile contour and flathess fusion π model and PCFC innovation technology were proposed for the breakthrough implementation of the high-precision PCFC in schedule-free rolling process of electrical steel with high efficiency and low cost,which provides a theoretical basis and innovative realization path for the indus-trial production.Finally,the innovative development trend of high-precision PCFC for wide electrical steel was prospected.
strip rolling millelectrical steelschedule-free rollingprofile contour and flatness control
NETL
NSTL
万方数据
维普
