Теорія і технологія прокатки: невирішені задачі та аспекти розвитку

• Datum: 2023
• 1. Verfasser: Мазур, В.Л.
• Format: Artikel
• Sprache: Ukrainisch
• Veröffentlicht: Physico-technological Institute of Metals and Alloys 2023
• Schlagworte: сталь; прокатка; теорія; технологія; виробництво; енергозбереження; металопродукція; ефективність; якість
• Online Zugang: https://www.metalsandcasting.com/index.php/mcu/article/view/163
• Назва журналу: Metal and Casting of Ukraine

Actual problems in the theory and technology of hot and cold strip rolling are considered. It is shown, that at the current stage of the evolution of rolling production, further in-depth study requires mathematical models, that describe the formation of the structure and mechanical properties of steel during hot rolling, models and optimization algorithms for the rolling process, that work in real time, probabilistic models of hot and cold rolling processes, rolling theory in semi-fluid friction mode. Links are given to works, devoted to the disclosure of the mechanism of formation of the microrelief of the surface of strips during cold rolling, as well as an analysis of the laws of the influence of the state of the surface of the rolls, the degree and speed of deformation, the mechanical properties of the metal, and other parameters of the rolling and tempering processes. It is noted, that the developed technological solutions provide in the production environment the surface roughness specified by the standards for sheet steel. The scientific foundations, the development of the theory and practice of the use of technological lubricants in cold strip rolling are considered. The positive effects achieved with the use of technological lubricants and its effect on the formation of the microrelief of the formed metal are shown. Recommendations are given on the use of published theoretical solutions in industrial practice. Attention is drawn to the theory and practice of the use of technological lubricants in the hot rolling of steel strips. The effectiveness of such technology is emphasized. The directions of theoretical research in this field of science, as well as the development of methods and systems for supplying lubricants to rolling rolls and to the deformation zone, are proposed. Of fundamental importance for the further development of the theory and technology of sheet rolling are new techniques and algorithms for assessing the stability of coils of cold-rolled strips, developed on the basis of a new approach to calculating their stress-strain state. The effectiveness of the recommended solutions for the prevention of defects in coils of cold rolled sheet steel is confirmed by industrial practice. The directions of development of the scientific foundations of the sheet rolling process and methods for solving a number of urgent problems are proposed. In technology, the main efforts should be aimed at solving energy conservation issues, improving production efficiency and improving the quality of sheet products.