Management of the mechanical properties of heavy-plate rolled products

Abstract

Competitiveness of Ukrainian metal in the world market is stipulated by high technical requirements for its quality in general, including its mechanical properties. Introduction of effective systems of automated control of the mechanical properties of heavy-plate mills will significantly improve their quality. The article describes the formulation of the problem of controlling mechanical properties of heavy-plate rolled products, and mathematical models for forecasting their mechanical properties. The main technical solutions are implemented into the automated control system of mechanical properties of rolled products. The developed system of automated control of their mechanical properties is included into the APCS of heavy-plate mills rolling, as well as the software and hardware for this complex system is partially common to both components. APCS of the rolling process is functionally combined with the control system of the mechanical properties of rolled products. Five programmable controllers built on a PC, as well as monitors, a corresponding keyboard and printers are used to control these properties. For the organization of the automated system of control and management of mechanical properties there is used a «manual» organizational and technical structure. To test the developed system and its algorithms, there was created a laboratory installation which allowed to perform simulation of the automated control system of the mechanical properties of rolled products on the basis of a PC. During the simulation there was used experimental data from a real technological object and confirmed the operability of the obtained scientific and technical solutions. Stated above solutions to control the mechanical properties of rolled products can be used in the development of the APCS of heavy-plate mills.