Abstract
This paper describes the stages of applied research and development leading to a functional prototype of a quenching unit. It became a part of a closed facility of process equipment for thermal treatment by refining and other methods of annealing of seamless steel tubes for the OCTG industry (Oil Country Tubular Goods), power engineering and mechanical engineering in Třinecké Železárny. The development of the prototype has been divided into several stages: mapping of the current state and critical assessment of the technical and technological level of the existing equipment in the Tube Mill, laboratory testing of tube samples cooling, including numerical simulations with the prediction of the initial settings of the process parameters for the recommendation of the technological configuration of the quenching unit prototype and finally a comprehensive technical design of the prototype quenching unit. The design of the prototype technical solution served as the basis for the creation of the detailed engineering documentation with the subsequent construction of the prototype quenching unit. The paper summarizes the procedures and results of individual development stages, including the results of measured temperatures of tubes during actual operation of the prototype and the results of additional numerical simulations of its actual cooling capacity.
Highlights
DEVELOPMENT OF THE TUBE QUENCHING PROTOTYPE UNITRostislav Turoň1), Michael Squerzi1), Milan Hnízdil2), Martin Chabičovský2), Pavel Simeček3), Miroslav Kreisinger4) 1) Třinecké Železárny a
The production base in the area of refined tubes production in Trinecke Zelezarny in response to market demands (OCTG, power engineering and partly mechanical engineering) is broad in terms of chemical composition of steels, and in terms of dimensional variability with tube diameters of 168 - 406.4 mm and a wall thickness of 6.3 - 60.5 mm
The QUENCHING UNIT is in the stage of optimization of the technology of quenching of the established steel grades and development of the technology for the introduction of new steel grades and dimensional series for refining together with the development of the HT_TUBE_SETUP calculation model
Summary
Rostislav Turoň1), Michael Squerzi1), Milan Hnízdil2), Martin Chabičovský2), Pavel Simeček3), Miroslav Kreisinger4) 1) Třinecké Železárny a. S.,Třinec, Czech Republic 2)Brno University of Technology, Faculty of Mechanical Engineering, Heat Transfer and Fluid Flow Laboratory, Brno, Czech Republic 3)ITA spol. O., Ostrava, Czech Republic 4)BKB Metal a.
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