INFLUENCE OF TENSION STRIP AT THE TOTAL MOMENT FOR CONTINUOUS ROLLING

The studies presented in this paper are based on the fact that the basic equation of continuous rolling shows that all components of the total balance of works under unchanged boundary conditions depend on the nature of the distribution specific frictional forces in the deformation zone of all cages of the state. The frictional force in the zones of lagging and advancing strongly depends on the band tension. The paper paid attention to determine the effectiveness of the effects of friction and tension band size to reduce energy consumption in the process of rolling. As a result of theoretical research, the energy-saving technology of continuous rolling was constructed by rationalizing the tension and compression modes. The simulation of power-supply parameters of the continuous rolling process with the tension of the head at different friction conditions on the contact, taking into account the internal longitudinal forces of plastic-deformed metal, is fulfilled. The estimation of the effect of tension, specific forces of friction, compression of the headquarters at the moment on the barrel of rolls and its total value on all cages of a continuous mill was given. A relationship is established between the tension regime of the strip and the longitudinal stability of the deformation process. The results of the work showed that with increasing tension on the cages at the total moment in the barrels of the continuous state decreases. The proportion of the first rolling mill in the general decline is the largest since. But at the same time, the longitudinal stability of the metal in the deformation cell is reduced. At a considerable tension of the strip in some cells, the process can proceed under conditions close to the boundary. Such relationships occur for different models of friction at the contact between the metal and the rolls. Redistribution of squeezing on cages in conditions of continuous rolling with the tension of the headquarters also affects the total moment in the roll barrels.