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STUDIES AND RESEARCH REGARDING THE DETERMINING FACTORS OF QUALITY IN STEEL ROUND BILLETS USED FOR THE MANUFACTURE OF TUBULAR PRODUCTS

Domenii publicaţii > Stiinte ingineresti + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: Marcel Valeriu, Suciu; Victor, Geanta; Radu, Stefanoiu; Valerica, Suciu; Ene, Petrus; Stefan, Stan; Daniela, Mihailescu

Editorial: METALURGIA INTERNATIONAL, 13, p.81-87, 2008.

Rezumat:

An efficient solution to the manufacture of tubular products lies in the use of continously cast round billets, as they present lower costs and satisfactory quality. The study analyzes the factors that determine high performance results of this solution: quality of liquid steel, technological level of the casting system, parameter-optimized automatic control and regultion of the whole process and data monitoring and processing. The research analyzes the technological flow: heating in Eccentric Bottom Tapping (EBT), flux dosing, regulation of chemical and heating conditions, liquid steel treatment in Ladle Furnace (LF), the amount and quality of slag, outputs of Aluminum and Calcium, temperature regulation, steel casting without electromagnetic stirrer (EMS), steel overheating, primary and secondary cooling, improvements of equipment and work parameters.

Cuvinte cheie: ţevi de oţel, semifabricate turnate, turnare continuã // steel pipe, steel round billets, continuous casting

URL: http://www.metalurgia.ro/Mi_nr3.pdf