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RESEARCH ON THE CAUSES OF CERTAIN FAULT OCCURENCES IN SEMIFINISHED PRODUCTS DURING THE CONTINUOUS CASTING PROCESS

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

Autori: Marcel Valeriu, Suciu; Victor, Geanta; Constantin, Nicolae; Radu, Stefanoiu; Valerica Suciu; Gheorghe, Iorga; Petrus, Ene; Stefan, Stan

Editorial: METALURGIA INTERNATIONAL, 13, p.100-104, 2008.

Rezumat:

Semifinished continuously cast steel products represent the optimum solution for raw materials for hot-rolling sectors in that they present low costs and satisfactory quality. It should be observed though that, sometimes, longitudinal fissures appear on the surface of these semifinished products. The paper presents the results of material investigations undertaken at A.M. Hunedoara, using discs taken from continuously cast blooms on faulty areas. The research has evidenced three technological risk factors in practice, these being the thermal regime in the distributor, the inadequacy of the crystalizer cooling diagram and the Alsol/Altot in liquid steel brought for smelting.

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

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