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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">vsgiu</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Сибирского государственного индустриального университета</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of the Siberian State Industrial University</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2304 - 4497</issn><issn pub-type="epub">2307-1710</issn><publisher><publisher-name>Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирский государственный индустриальный университет"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.57070/2304-4497-2024-2(48)-127-135</article-id><article-id custom-type="elpub" pub-id-type="custom">vsgiu-70</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Раздел 3. Металлургия и материаловедение</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Section 3. Metallurgy and Materials Science</subject></subj-group></article-categories><title-group><article-title>ИССЛЕДОВАНИЕ И СОВЕРШЕНСТВОВАНИЕ РЕЖИМОВ ПРОДУВКИ РАСПЛАВА РЕЛЬСОВОЙ ЭЛЕКТРОСТАЛИ В ПРОЦЕССЕ ОБРАБОТКИ НА АГРЕГАТЕ КОВШ-ПЕЧЬ</article-title><trans-title-group xml:lang="en"><trans-title>RESEARCH AND IMPROVEMENT OF MODES FOR BLOWING ELECTRIC RAIL STEEL MELT DURING PROCESSING ON THE LADLE-FURNACE UNIT</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Думова</surname><given-names>Любовь Валерьевна</given-names></name><name name-style="western" xml:lang="en"><surname>Dumova</surname><given-names>Lyubov′ V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ведущий инженер Центра коллективного пользования «Материаловедение» института металлургии и материаловедения</p></bio><bio xml:lang="en"><p>Leading engineer of the Center for Collective Use "Materials Science" of the Institute of Metallurgy and Materials Science</p></bio><email xlink:type="simple">doumova@bk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7554-2168</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Протопопов</surname><given-names>Евгений Валентинович</given-names></name><name name-style="western" xml:lang="en"><surname>Protopopov</surname><given-names>Evgenii V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.т.н., профессор, профессор кафедры металлургии черных металлов и химической технологии</p></bio><bio xml:lang="en"><p>Dr. Sci. (Eng.), Prof. of the Chair of Ferrous Metallurgy and Chemical Technology</p></bio><email xlink:type="simple">protopopov@sibsiu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4403-9006</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Уманский</surname><given-names>Александр Александрович</given-names></name><name name-style="western" xml:lang="en"><surname>Umanskii</surname><given-names>Aleksandr A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.т.н., доцент, директор института металлургии и материаловедения, профессор кафедры металлургии черных металлов и химической технологии</p></bio><bio xml:lang="en"><p>Dr. Sci. (Eng.), Assist. Prof., Director of the Institute of Metallurgy and Materials Science, Prof. of the Chair of Ferrous Metallurgy and Chemical Technology</p></bio><email xlink:type="simple">umanskii@bk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Сибирский государственный индустриальный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Siberian State Industrial University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>30</day><month>06</month><year>2024</year></pub-date><volume>0</volume><issue>2</issue><fpage>127</fpage><lpage>135</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Думова Л.В., Протопопов Е.В., Уманский А.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Думова Л.В., Протопопов Е.В., Уманский А.А.</copyright-holder><copyright-holder xml:lang="en">Dumova L., Protopopov E., Umanskii A.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://vestnik.sibsiu.ru/jour/article/view/70">https://vestnik.sibsiu.ru/jour/article/view/70</self-uri><abstract><p>С использованием моделирования процесса продувки расплава в сталеразливочном ковше, проведенного применительно к условиям электросталеплавильного цеха АО «ЕВРАЗ ЗСМК», определены закономерности влияния интенсивности продувки на параметры, характеризующие интенсивность перемешивания металла: мощность перемешивания и эффективный коэффициент диффузии. Показано, что повышение интенсивности продувки инертным газом в широких пределах варьирования данного показателя увеличивает мощность перемешивания вне зависимости от режима истечения газовых струй и направления переноса. При этом влияние удельного расхода вдуваемого в расплав инертного газа на интенсивность перемешивания более выражено для струйного режима продувки по сравнению с пузырьковым, что позволяет определить характеристики процесса гомогенизации расплава при расчете эффективного коэффициента диффузии. На основании статистических исследований определено, что в условиях рассматриваемого цеха увеличение длительности периодов продувки рельсовой стали с интенсивностью более 1,1 м3/мин оказывает значимое влияние на уменьшение отбраковки рельсов из-за наличия неметаллических включений. Полученные результаты теоретических и аналитических исследований явились базой для разработки усовершенствованного режима продувки рельсовой стали инертным газом в процессе обработки на агрегате ковш-печь. Отличительной особенностью усовершенствованного режима является наличие во второй половине продувки периода с повышенной до 1,2 – 1,6 м3/мин интенсивностью подачи инертного газа с продолжительностью не менее 10 мин. Опытно-промышленное опробование разработанного режима продувки инертным газом подтвердило его эффективность с точки зрения рафинирования рельсовой стали от неметаллических включений. В серии из 110 опытных плавок зафиксировано снижение отбраковки рельсов из-за наличия неметаллических включений на 0,6 %.</p></abstract><trans-abstract xml:lang="en"><p>Using simulation of the melt purging process in a steel ladle, carried out in relation to the conditions of the electric steel melting shop of JSC EVRAZ ZSMK, the regularities of the influence of the intensity of purging on the parameters characterizing the intensity of metal mixing: mixing power and effective diffusion coefficient were determined. It is shown that an increase in the intensity of purging with an inert gas within a wide range of variation of this indicator increases the mixing power, regardless of the mode of outflow of gas jets and the direction of transfer. At the same time, the effect of the specific flow rate of the inert gas injected into the melt on the mixing intensity is more pronounced for the jet purge mode compared with the bubble mode, which makes it possible to determine the characteristics of the melt homogenization process when calculating the effective diffusion coefficient. Based on statistical studies, it was determined that in the conditions of the workshop under consideration, an increase in the duration of periods of purging of rail steel with an intensity of more than 1.1 m3/min. It has a significant effect on reducing rail rejection due to the presence of non-metallic inclusions. The obtained results of theoretical and analytical studies were the basis for the development of an improved mode of purging rail steel with inert gas during processing on the bucket furnace unit. A distinctive feature of the improved mode is the presence in the second half of the purge period with an increased to 1.2 – 1.6 m3/min intensity of inert gas supply with a duration of at least 10 minutes. Pilot testing of the developed inert gas purge mode has confirmed its effectiveness in terms of refining rail steel from non-metallic inclusions. In a series of 110 experimental smelters, a decrease in rail rejection due to the presence of non-metallic inclusions was recorded by 0.6 %.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>рельсовая сталь</kwd><kwd>продувка инертным газом</kwd><kwd>неметаллические включения</kwd><kwd>численное моделирование</kwd><kwd>перемешивание расплава</kwd></kwd-group><kwd-group xml:lang="en"><kwd>rail steel</kwd><kwd>purging with inert gas</kwd><kwd>non-metallic inclusions</kwd><kwd>numerical modeling</kwd><kwd>melt mixing</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Zhang H., Liu C., Lin Q., Wang B., Liu X., Fang Q. Formation of plastic inclusions in U71Mnk High-speed heavy-rail steel refined by CaO-SiO2-Al2O3-MgO slag. 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