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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">blackmet</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. Черная Металлургия</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya. Ferrous Metallurgy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0368-0797</issn><issn pub-type="epub">2410-2091</issn><publisher><publisher-name>National University of Science and Technology "MISIS"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/0368-0797-2022-6-406-412</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-2321</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>По материалам конференции «Металлургия – 2021»</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Based on the materials of the conference “Metallurgy – 2021”</subject></subj-group></article-categories><title-group><article-title>Фундаментальные исследования физико-химических свойств экологически чистых бесфтористых шлаков и их использование в ковшевой металлургии стали</article-title><trans-title-group xml:lang="en"><trans-title>Fundamental studies of physicochemical properties of environmentally friendly fluorine-free slags and their use in ladle steel industry</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0734-6162</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бабенко</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Babenko</surname><given-names>А. А.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Анатолий Алексеевич Бабенко, д.т.н., профессор, ведущий научный сотрудник</p><p>Россия, 620016, Екатеринбург, ул. Амундсена, 101</p></bio><bio xml:lang="en"><p>Anatolii A. Babenko, Dr. Sci. (Eng.), Chief Researcher of the Laboratory of Steel and Ferroalloys</p><p>101 Amundsena Str., Yekaterinburg 620016, Russian Federation</p></bio><email xlink:type="simple">babenko251@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6324-4032</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Смирнов</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Smirnov</surname><given-names>L. А.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Леонид Андреевич Смирнов, академик РАН, д.т.н., профессор, главный научный сотрудник</p><p>Россия, 620016, Екатеринбург, ул. Амундсена, 101</p></bio><bio xml:lang="en"><p>Leonid A. Smirnov, Academician, Dr. Sci. (Eng.), Chief Researcher of Laboratory of Steel and Ferroalloys</p><p>101 Amundsena Str., Yekaterinburg 620016, Russian Federation</p></bio><email xlink:type="simple">uim@ural.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>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Protopopov</surname><given-names>Е. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Евгений Валентинович Протопопов, д.т.н., профессор, профессор кафедры металлургии черных металлов</p><p>Россия, 654007, Кемеровская обл. – Кузбасс, Новокузнецк, ул. Кирова, 42</p></bio><bio xml:lang="en"><p>Evgenii V. Protopopov, Dr. Sci. (Eng.), Prof. of the Chair of Ferrous Metallurgy</p><p>42 Kirova Str., Novokuznetsk, Kemerovo Region – Kuzbass 654007, Russian Federation</p></bio><email xlink:type="simple">protopopov@sibsiu.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6698-5565</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Уполовникова</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Upolovnikova</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алена Геннадьевна Уполовникова, к.т.н., старший научный сот­рудник</p><p>Россия, 620016, Екатеринбург, ул. Амундсена, 101</p></bio><bio xml:lang="en"><p>Alena G. Upolovnikova, Cand. Sci. (Eng.), Senior Researcher of Laboratory of Steel and Ferroalloys</p><p>101 Amundsena Str., Yekaterinburg 620016, Russian Federation</p></bio><email xlink:type="simple">upol.ru@mail.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/0000-0001-9206-0905</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сметанников</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Smetannikov</surname><given-names>А. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Артем Николаевич Сметанников, младший научный сотрудник лаборатории стали и ферросплавов</p><p>Россия, 620016, Екатеринбург, ул. Амундсена, 101</p></bio><bio xml:lang="en"><p>Artem N. Smetannikov, Junior Researcher of Laboratory of Steel and Ferroalloys</p><p>101 Amundsena Str., Yekaterinburg 620016, Russian Federation</p></bio><email xlink:type="simple">artem.smetannikov.89@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт металлургии УрО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Metallurgy, Ural Branch of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><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>2022</year></pub-date><pub-date pub-type="epub"><day>22</day><month>06</month><year>2022</year></pub-date><volume>65</volume><issue>6</issue><fpage>406</fpage><lpage>412</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Бабенко А.А., Смирнов Л.А., Протопопов Е.В., Уполовникова А.Г., Сметанников А.Н., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Бабенко А.А., Смирнов Л.А., Протопопов Е.В., Уполовникова А.Г., Сметанников А.Н.</copyright-holder><copyright-holder xml:lang="en">Babenko А.А., Smirnov L.А., Protopopov Е.V., Upolovnikova A.G., Smetannikov А.N.</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://fermet.misis.ru/jour/article/view/2321">https://fermet.misis.ru/jour/article/view/2321</self-uri><abstract><p>Выполнен комплекс теоретических и экспериментальных исследований зависимости вязкости, коэффициентов распределения серы и бора между шлаком и металлом, степени износа периклазоуглеродистого огнеупора от основности и содержания оксида бора в шлаке. Показано, что формируемые шлаки в диапазоне основности 2,0 – 5,0 характеризуются достаточно высокой жидкоподвижностью. Эти шлаки имеют повышенный до 5 – 20 равновесный межфазный коэффициент распределения серы, который обеспечивает пониженное до 0,001 – 0,005 % равновесное содержание серы в металле. Результаты фундаментальных исследований физико-химических свойств рафинировочных шлаков системы СаО – SiO2 – В2O3 – Al2O3 – MgO легли в основу разработки состава экологически чистых бесфтористых ковшевых шлаков и технологических приемов их формирования на установке ковш – печь. Рекомендованный состав экологически чистых ковшевых шлаков низкой вязкости, обеспечивающих глубокую десульфурацию металла, прямое микролегирование стали бором и низкое агрессивное воздействие на периклазоуглеродистые огнеупоры, предусматривает формирование шлаков основностью 3,0 – 4,0, содержащих 1 – 4 % B2O3 , 15 % Al2O3 и 8 % MgO. Формирование экологически чистых ковшевых шлаков рекомендованного состава осуществлен на установке ковш – печь загрузкой в сталеразливочный ковш извести, борсодержащего материала – колеманита (Турция), содержащего 39 – 41 % В2О3 , 26 – 28 % СаО, не более 5 % SiO2 и 3 % MgO, и пирамидального алюминия для раскисления шлака и восстановления бора. Внедрение разработанной технологии формирования ковшевых шлаков рекомендованного состава обеспечило производство экономно легированных низкоуглеродистых конструкционных борсодержащих сталей с низким содержанием серы, в том числе для производства труб большого диаметра с высокими прочностными свойствами.</p></abstract><trans-abstract xml:lang="en"><p>The article describes theoretical and experimental studies of dependence of viscosity, coefficients of sulfur and boron distribution between slag and metal, and wear degree of periclase-carbon refractories on basicity and boron oxide content in slag. It is shown that formed slags have basicity of 2.0 – 5.0 and rather high liquid mobility. These slags are characterized by an equilibrium interfacial distribution coefficient of sulfur increased to 5 – 20, which provides equilibrium sulfur content in the metal reduced to 0.001 – 0.005 %. The results of fundamental studies of the physicochemical properties of refining slags of СаО – SiO2 – В2O3 – Al2O3 – MgO system formed the basis for development of the composition of environmentally friendly fluorine-free ladle slags and technological methods for their formation in ladle-furnace unit. The recommended composition of such slags of low viscosity, which allows deep metal desulfurization, direct steel microalloying with boron and low aggressive effect on periclase-carbon refractories, provides formation of slags with a basicity of 3.0 – 4.0, containing 1 – 4 % B2O3 , 15 % Al2O3 and 8 % MgO. The formation of environmentally friendly ladle slags of the recommended composition was carried out in a ladle-furnace by loading lime, boron-containing material – colemanite (Turkey) containing 39 – 41 % B2O3 , 26 – 28 % CaO, not more than 5 % SiO2 and 3 % MgO, and pyramidal aluminum into the steel-teeming ladle for slag deoxidation and boron recovery. Introduction of the developed technology for the formation of ladle slags of recommended composition ensured the production of economically alloyed low-carbon structural boron-containing steels with a low sulfur content, incl. for large diameter pipes with high strength properties.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>вязкость</kwd><kwd>оксид бора</kwd><kwd>стабилизация шлаков</kwd><kwd>распределение серы</kwd><kwd>термодинамическое моделирование</kwd><kwd>периклазоуглеро­дистые огнеупоры</kwd><kwd>предел текучести</kwd><kwd>временное сопротивление</kwd></kwd-group><kwd-group xml:lang="en"><kwd>viscosity</kwd><kwd>boron oxide</kwd><kwd>slag stabilization</kwd><kwd>sulfur distribution</kwd><kwd>thermodynamic modeling</kwd><kwd>periclase-carbon refractories</kwd><kwd>yield strength</kwd><kwd>time resistance</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено в рамках Государственного задания ИМЕТ УрО РАН.</funding-statement><funding-statement xml:lang="en">The research was carried out within the framework of the state task of the Institute of Metallurgy of the Ural Branch of Russian Academy of Sciences.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Дюдкин Д.А., Кисиленко В.В. 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