Shevchenko Anatoliy Pylypovych, Dr. Sci. (Engin.), Professor, Leading Researcher, Iron and Steel Institute named after Z.I. Nekrasovof the NAS of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107; email: ovoch-isi@outlook.com, ORCID 0000-0003-0867-6825
Kislyakov Vladimir Gennadyevich, PhD (Engin.), Senior Researcher, Head of Department, Iron and Steel Institute named after Z.I. Nekrasovof the NAS of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107; e-mail: ovoch-isi@outlook.com, vovkadragon@yandex.ua, ORCID 0000-0002-1775-5050
Dvoskin Boris Wolfovich, PhD (Engin.), Senior Researcher, Iron and Steel Institute named after Z.I. Nekrasov of the NAS of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107; e-mail: ovochisi@outlook.com, ORSID 0000-0003-2891-7833;
Vergun Alexander Sergeevich, Dr. Sci., (Engin.), Senior Research Scientist, Iron and Steel Institute named after Z.I. Nekrasovof the NAS of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107; e-mail: ovoch-isi@outlook.com, ORCID 0000-0001- 5493-9214
Manachyn Ivan Aleksandrovych, PhD (Engin.), Senior Researcher, Iron and Steel Institute named after Z.I. Nekrasov of the NAS of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107; e-mail: ovoch-isi@outlook. com, manachyn@gmail.com, ORCID 0000-0001-9795-6751
Petrusha Victoria Petrovna, Lead Engineer, Iron and Steel Institute named after Z.I. Nekrasov of the NAS of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107; e-mail: ovoch-isi@outlook.com
Shevchenko Serhiy Anatoliyovych, Ph.D., Senior Researcher, Iron and Steel Institute named after Z.I. Nekrasovof the NAS of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107; e-mail: shev_serg@i.ua, ORSID 0000-0002-9287-9177

Stages of scientific and applied activities of the department of external
processing of the iron of ISI NANU

Summary. The history of the creation and development of the research
unit of the Iron and Steel Institute, the department of after-furnace treatment of
cast iron is presented. From 1939 to 1983, this structural unit of the ISI was
headed by Doctor of Technical Sciences, Professor Natalya Aleksandrovna
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«Фундаментальные и прикладные проблемы черной металлургии»,
Сборник научных трудов ИЧМ. – 2018. – Вып.32
Voronova, then for 34 years, until 2017, the student and associate of
N.A. Voronova – Doctor of Technical Sciences, Professor Shevchenko A.F.,
from 2017 to the present, the department is headed by Kislyakov V.G. During
this period, a set of scientific research and development has provided an
opportunity for the department staff to defend 3 doctoral and 16 master’s theses.
Two employees of the department were awarded the academic title of professor,
and ten – senior research assistant. The evolution of the technological process
and equipment for the processing of cast iron by granular magnesium in ladles
of various capacities is shown. In particular, it was not possible to inject
granular magnesium without additives with lances used to inject mixtures of
magnesium with fillers into the melt due to blockage of the channel of the
magnesium wire at the outlet of the lance. To solve this problem, a lance of a
new design was developed, at the outlet of the channel of which an evaporation
chamber was installed, the task of which was to remove the section of the lance
channel from direct contact with cast iron. The design of tuyeres with
evaporation chambers made it possible to virtually eliminate blockages of the
tuyere channel. The studies of the interaction of magnesium with molten iron
became the scientific basis for the creation of a modern highly automated
process for the secondary refining of cast iron by mono-injection of magnesium
without additives. This technology received the most successful application in
the creation of modernized complexes at Chinese enterprises. Since 2001, 84
complexes of out-of-furnace desulphurization of pig iron and slag download
using ISI technology with a total capacity of over 100 million tons/year of lowsulfur and pig iron-free slag have been built and commissioned at 39 plants in
China.