Influence of the conditions of the continuous capture of the sleeves on the technological parameters of the process

The development of pipe production has led to the widespread use of continuous mills with a holding mandrel and 3-roll passes for rolling sleeves. This required a refinement of a number of theoretical principles related to a change in the process kinematics. A methodology for determining the energy-power process parameters based on the energy theory has been developed. In order to identify influence patterns of the rolling process parameters on the angle of the mandrel coverage and the broadening magnitude of the roll conducted an experimental study. The average pressure values at the contact with the work rolls and the mandrel are determined by compiling the equation of equilibrium of the force projections on the longitudinal axis. The developed mathematical models and the algorithm for calculating the energy-power parameters of the rolling process of the sleeves in a continuous mill. This model made it possible to determine the efforts of rolling pipes in a continuous mill with sufficient accuracy. The obtained dependences can be used both for research purposes and for calculating the rolling tables on tube rolling units with continuous rolling mills.