Computer modelling-based selection of accelerated cooling parameters for advanced high-strength structural steel

Abstract

The article describes the working principles and configuration of the computer system applied for selecting parameters of accelerating water cooling of rolled sheets made of low-carbon advanced strength steel. The system is based on mathematical models using empirical regression equations that describe the interconnections between working parameters of cooling equipment and the technological parameters of thermal processing. The equations are outlined and discussed. The results of computer modelling verification in industrial trials are presented. The case-study involved computer system concerning steel properties and microstructure is described.

Implementation of Quality Management System for Production of TMCP Treated 10mn2vnbal Steel Heavy Plates

“…It follows 18,19,20 from papers that each production builds its quality control system, which takes into account the specifics of its structure and management methods. At the same time, proactive quality management systems 21,22 are widely used, including methods of controlling technological parameters 23,24 , testing quality indicators 25,26 , and forecasting based on mathematical models (e.g., statistical 27,28 or neural network 29,30 ). Thus, in order to control the production process and ensure the predicted quality of thermo-mechanically processed rolled products, it is necessary to develop a proactive quality management system to establish and control the relevant technological factors, which is the objective of this study.…”

Enhancing the Tensile Properties and Ductile-Brittle Transition Behavior of the EN S355 Grade Rolled Steel via Cost-Saving Processing Routes

“…The pearlite-free structures mentioned earlier could be formed in low-carbon structural steel using post-rolling AC, which suppresses the austenite→pearlite transformation [36,37]. It is particularly important that this structure could be formed using heating before HR, not requiring the additional costs for furnace heating of the rolled sheets [38]. The combination of TMCP and AC led to an advanced steel strength that meets the requirements of the X80-X120 API 5L grades (Misra et al [17,18], Ramirez et al [39]).…”