INCREASE THE NITROGEN CONTENT IN CHROMIUM MELT BY OXYGEN-NITROGEN NOZZLES UNDER THE CONDITIONS OF METALLURGICAL PILOT PLANT

1 KURKA Vladislav
Co-authors:
2 JONŠTA Petr 2 CARBOL Zdeněk 3 BAŽAN Jiří 3 SOCHA Ladislav
Institutions:
1 MATERIAL AND METALLURGICAL RESEARCH Ltd., Ostrava, Czech Republic, EU, vladislav.kurka@mmvyzkum.cz
2 VÍTKOVICE HEAVY MACHINERY a.s., Ostrava, Czech Republic, EU, jonsta@vitkovice.cz
3 VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU, jiri.bazan@vsb.cz
Conference:
26th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 24th - 26th 2017
Proceedings:
Proceedings 26th International Conference on Metallurgy and Materials
Pages:
102-108
ISBN:
978-80-87294-79-6
ISSN:
2694-9296
Published:
9th January 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
31 views / 17 downloads
Abstract

In MATERIAL AND METALURGICAL RESEARCH LtD. we made a proposal, manufacturing and verification of oxygen-nitrogen nozzle. This nozzle is a part of a vacuum and pressurized induction melting furnace (VPIM) and it works at pressure 10-20 kPa(a). Experimental melt with increasing the nitrogen content in molten steel by nitrogen gas will be carried out at low pressure. First, we will use the oxygen-nitrogen nozzle and then we will use a porous block located at the bottom of the casting ladle.

Keywords: melt, chromium, nitrogen, nozzle, oxygen
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