14th issue of the journal "KB"

Abstract. The existing problems of rolls handling facilities, as in the case of PJSC "Magnitogorsk Iron and Steel Works" Long products shop were considered in terms of a proposition to have them solved by means of introduction of an automated information system for accounting and management. A review of literary sources on issues of information technology, management, logistics and organization of rolls handling facilities was performed. The basic provisions of automated information system have been developed, and the issue of rolls handling facilities management on its basis is considered.
Keywords: rolls accounting, rolls handling facility, roll life cycle, automated information system.

Abstract. The article present the information about the plan and results of the computer experiment on the basis of which nonlinear approximations were obtained for the simplification calculation of the modulus of rigidity of the rolls of the four-high strip mill 2500 cold rolling.
Keywords: deformation of rolls, strip profile, modulus of rigidity, experimental planning, four-high strip mill.

Abstract. The currently existing methods of production ball-rolling rolls, taking into account the capabilities of metal-cutting equipment presented. The prospects development of methods for roll-pass design ball-rolling rolls with the possibility of obtaining any form parts of complexity on the projected 3-D models on 4 or 5-axis machining centers have been determined. Developed the model for calculating ball-rolling rolls with variable depth of channel. Presented are promising possible ways to production ball-rolling rolls with roll-pass designs developed by this method and with variable depth of channel, which will allow to obtain a high accuracy degree of the resulting ball, including geometry quality, uniformity of compression between equators and poles.
Keywords: ball-rolling roll, variable depth of channel, 5-axis machining centers, longitudinal feed, circular feed.

Abstract. The article presents the results of industrial testing of new technology with the use of die with deforming protrusions. The results showed that this technology can significantly reduce the number of hardening of the wire and the power spent on drawing.
Keywords: cold-hardening, drawing, reduction of effort and power.