( TOPIC 1)High Temperature Thermal Analysis Applied to Research of Steels - Temperatures of Phase Transitions, Heat Capacities and Latent Heats

摘要

In technological applications, especially for primary and secondary metallurgy, it is necessary to precise liquidus temperature of individual steel grades. This allows more control over the entire production cycle towards a more accurate setting - the final superheating of steel before casting. In some cases, it can reduce the tapping temperature from the primary unit or reduce the extent of reheating during the final stage of secondary refining. This could lead to restrictions of the additional oxygen blow and the period of steel processing in converters, additionally to reduce wear of linings and also to reduce the energy consumption needed for heating the melt before casting. The knowledge of thermophysical properties can play or play the key role in the case of the setting of technological process (e.g. temperature of liquidus is directly usable in the technological process, heat capacity and other thermophysical properties are usable indirectly through the simulation of techological process and its possible subsequent optimisation). This paper presents the experimental possibilities of our working site with respect to the acquisition of selected material data, that are directly or through simulations usable for optimisation of real technological steel production process.