STATE, DIRECTIONS OF DEVELOPMENT AND PERFECTION OF PRODUCTION OF HOT-ROLLED SHEET IN UKRAINE
Journal Title: Вестник Харьковского национального автомобильно-дорожного университета - Year 2018, Vol 80, Issue
Abstract
Not so long ago Ukraine occupied one of the lead-ing places in the world for steel production, and sheet steel accounted for a significant share of the total amount of metallurgical products. The output of Ukrainian producers on the world market has led to increase in the requirements for the quality of domestic rolled products. To ensure this, it is neces-sary to achieve the stability of the parameters of the technological process by using modern design of rolling mills, equipping them with the appropriate test equipment and automation of the technological process. The purpose of the article is to character-ize the main directions of development, the newest world-class technologies that ensure the production of high-quality thin-sheet rolled products with min-imal energy costs, and the economical and competi-tive ways to improve and modernize sheet rolling equipment and technologies in Ukraine. Results and practical value. Analysis of the technical condi-tion of the equipment of Ukrainian metallurgical plants and hot-rolled strip manufacturing technolo-gies at these plants, as well as comparison of this equipment with the equipment and technologies of modern production of hot-rolled strip abroad, showed that: a) in the industrialized countries, the technology of rolling production of hot-rolled strip directed to reduce the cost of producing of rolled metal (saving fuel, electricity, metal) by reducing the time technological process; b) in Ukraine, equip-ment and technology for rolling the strip were cre-ated in accordance with the requirements of the time of their design, with the use of ingots of large sizes with a minimum of equipment. Such a technology requires repeated heating of the rolled stock and, as a consequence, is characterized by high energy costs for the production of a ton of rolled products; c) the technology of rolling the strip in Ukraine requires significant changes, taking into account the re-quirements of energy saving to reduce the cost of finished products by improving equipment and com-pression modes, taking into account the thermal state of the strip.
Authors and Affiliations
O. Trishevskii
Keywords
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