Kotrbacek, P.; Chabicovsky, M.; Resl, O.; Kominek, J.; Luks, T. The Efficient Way to Design Cooling Sections for Heat Treatment of Long Steel Products. Materials2023, 16, 3983.
Kotrbacek, P.; Chabicovsky, M.; Resl, O.; Kominek, J.; Luks, T. The Efficient Way to Design Cooling Sections for Heat Treatment of Long Steel Products. Materials 2023, 16, 3983.
Kotrbacek, P.; Chabicovsky, M.; Resl, O.; Kominek, J.; Luks, T. The Efficient Way to Design Cooling Sections for Heat Treatment of Long Steel Products. Materials2023, 16, 3983.
Kotrbacek, P.; Chabicovsky, M.; Resl, O.; Kominek, J.; Luks, T. The Efficient Way to Design Cooling Sections for Heat Treatment of Long Steel Products. Materials 2023, 16, 3983.
Abstract
To achieve the required mechanical properties in the heat treatment of steel, it is necessary to have an adequate cooling rate and to achieve the desired final temperature of the product. This should be achieved with one cooling unit for different product sizes. In order to provide high variability of the cooling system, different types of nozzles are used in modern cooling systems. Designers often use simplified, inaccurate correlations to predict the heat transfer coefficient, resulting in oversizing of the designed cooling or failure to provide the required cooling regime. This typically results in longer commissioning times and higher manufacturing costs of the new cooling system. Accurate information about the required cooling regime and the heat transfer coefficient of the designed cooling is critical. This paper presents a design approach based on laboratory measurements. Firstly, the way to find or validate the required cooling regime is presented. The paper then focuses on nozzle selection and presents laboratory measurements that provide accurate heat transfer coefficients as a function of position and surface temperature for different cooling configurations. Numerical simulations using the measured heat transfer coefficients allow the optimum design to be found for different product sizes.
Engineering, Metallurgy and Metallurgical Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
