Ural Federal University (Ekaterinburg, Russia):

D. L. Shvarts, Cand. Eng., Associate Prof., Head of the Department “Metal Forming”
A. M. Mikhaiyenko, Cand. Eng., Associate Prof., Department “Metal Forming”
E. I. Ustinova, Assistant, Post-Graduate, E-mail: ustinova1694@gmail.com

Beam channel profile makes up a significant part of the range of section profiles, so research of its production processes is relevant. Nowadays, a large number of significantly different from each other roll pass design for rolling beam channels used in similar production conditions, is developed and used. There is the problem of choosing the best option of roll pass design which is optimal for particular rolling mill. Using modern approaches of system analysis, it was found that any roll pass design of beam channel is fully consistent with the generally accepted concept of “technological system” and has at least two possibilities for changing – it is possible to change the types and sequences of calibers used, i.e. the roll pass design scheme is variable, and it is also possible to change the distribution of reductions along the passes, i.e. reduction regimes are variable. Based on this idea of the essence of roll pass design of beam channel, a general model of two-stage optimization has been developed. At the first stage, choice of the optimal roll pass design scheme for a specific type or number of beam channel rolled in specific production conditions is made, and at the second stage, the reduction regime is optimized with the optimal roll pass design scheme fixed. The paper presents the general concept of optimization of beam channel roll pass design and the general structure of the model, which allows using at different stages of solution of problem both one — common and two different criteria of optimality corresponding to specific optimization goals. The full model includes the extensive information blocks, the structure, essence and content of which are being developed at the present time and will be presented in subsequent papers of this series.

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