CAUSES OF OCCURRENCE OF INTERNAL AND SURFACE DEFECTS AT CONTINUOUS CASTING OF STEEL SLABS AND POSSIBILITIES OF THEIR REMOVAL

1 MASARIK Miloš
Co-authors:
2 ČAMEK Libor
Institutions:
1 EVRAZ VÍTKOVICE STEEL, a. s., Ostrava, Czech Republic, EU, milos.masarik@cz.evraz.com
2 VSB - Technical University of Ostrava, FMMI, Ostrava, Czech Republic, EU, libor.camek@vsb.cz
Conference:
23rd International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 21 - 23, 2014
Proceedings:
Proceedings 23rd International Conference on Metallurgy and Materials
Pages:
105-110
ISBN:
978-80-87294-52-9
ISSN:
2694-9296
Published:
18th June 2014
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
336 views / 760 downloads
Abstract

The paper was focused on search of causes of occurrence of internal and surface defects of continuously cast steel slabs. The relationships between types of defects given in literature and their occurrence in industrial practice were investigated, ensuing from preparation of the melt according to the specification of secondary metallurgy unit and equipment of the continuous casting machine. Methods leading to the analysis of causes of formation of defects at non-observation of standard of metallurgical and technological procedures are always complicated and time consuming. The paper defines occurrence of individual types of defects and possibilities, which were developed for their removal in the BOF shop with single strand slab continuous casting machine.

Keywords: continuously cast steel, internal defects, surface defects, analysises, causes

© 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.

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