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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">10.17073/0368-0797-2023-4-485-491</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-2580</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>ИННОВАЦИИ В МЕТАЛЛУРГИЧЕСКОМ ПРОМЫШЛЕННОМ И ЛАБОРАТОРНОМ ОБОРУДОВАНИИ, ТЕХНОЛОГИЯХ И МАТЕРИАЛАХ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>INNOVATIONS IN METALLURGICAL INDUSTRIAL AND LABORATORY EQUIPMENT, TECHNOLOGIES AND MATERIALS</subject></subj-group></article-categories><title-group><article-title>Напряженное состояние системы заготовка – оправка при получении стальной полой заготовки на установке непрерывного литья и деформации. Часть 1</article-title><trans-title-group xml:lang="en"><trans-title>Stress state of billet – mandrel system during production of hollow steel billet in a unit for continuous casting and deformation. Part 1</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>Лехов</surname><given-names>О. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Lekhov</surname><given-names>O. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Олег Степанович Лехов, д.т.н., профессор кафедры инжиниринга и профессионального обучения в машиностроении и металлургии</p><p>Россия, 620012, Екатеринбург, ул. Машиностроителей, 11</p></bio><bio xml:lang="en"><p>Oleg S. Lekhov, Dr. Sci. (Eng.), Prof. of the Chair of Engineering and Vocational Training in Machinery and Metallurgy</p><p>11 Mashinostroitelei Str., Yekaterinburg 620012, Russian Federation</p></bio><email xlink:type="simple">MXLehov38@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Михалев</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Mikhalev</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Викторович Михалев, к.т.н., генеральный директор</p><p>Россия, 623107, Свердловская обл., Первоуральск, ул. Сакко и Ванцетти, 28</p></bio><bio xml:lang="en"><p>Aleksandr V. Mikhalev, Cand. Sci. (Eng.), General Director</p><p>28 Sakko i Vantsetti Str., Pervouralsk, Sverdlovsk Region 623107, Russian Federation</p></bio><email xlink:type="simple">mialex@trubprom.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Непряхин</surname><given-names>С. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Nepryakhin</surname><given-names>S. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей Олегович Непряхин, к.т.н., доцент кафедры обработки металлов давлением</p><p>Россия, 620002, Екатеринбург, ул. Мира, 19</p></bio><bio xml:lang="en"><p>Sergei O. Nepryakhin, Cand. Sci. (Eng.), Assist. Prof. of the Chair “Metal Forming”</p><p>28 Mira Str., Yekaterinburg 620002, Russian Federation</p></bio><email xlink:type="simple">s.o.nepriakhin@urfu.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Российский государственный профессионально-педагогический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Russian State Vocational Pedagogical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ОАО «Уральский трубный завод»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>JSC “Ural Pipe Plant”</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Уральский федеральный университет имени первого Президента России Б.Н. Ельцина</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ural Federal University named after the First President of Russia B.N. Yeltsin</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>17</day><month>08</month><year>2023</year></pub-date><volume>66</volume><issue>4</issue><fpage>485</fpage><lpage>491</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Лехов О.С., Михалев А.В., Непряхин С.О., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Лехов О.С., Михалев А.В., Непряхин С.О.</copyright-holder><copyright-holder xml:lang="en">Lekhov O.S., Mikhalev A.V., Nepryakhin S.O.</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/2580">https://fermet.misis.ru/jour/article/view/2580</self-uri><abstract><p>Приводится обоснование актуальности получения непрерывнолитых стальных трубных полых заготовок с позиции улучшения качества труб из углеродистых и легированных сталей. Представлена оценка качества внутренней поверхности труб, прокатанных из стальных сплошных трубных заготовок. Предлагается новая технология получения стальных трубных полых заготовок на ресурсосберегающей установке совмещенного процесса непрерывного литья и деформации. Приводится фотография участка непрерывного литья и деформации ОАО «Уральский трубный завод», показана опытная установка совмещенного процесса непрерывного литья и деформации. Статья содержит результаты теоретического исследования напряженно-деформированного состояния оправки и участков трубной заготовки при обжатии ее бойками установки совмещенного процесса непрерывного литья и деформации. В статье рассматривается общая модель системы кристаллизатор – бойки. Приведены исходные данные для расчета, размеры полой трубной заготовки и описание калибровки бойков для обжатия стальной полой заготовки. Рассматривается температурное поле полой заготовки. Для моделирования напряженно-деформированного состояния металла в очагах деформации и оправке рассматриваются четыре контактные пары. Излагается методика расчета с использованием метода конечных элементов и приводятся размеры конечного элемента в очагах деформации полой заготовки. Установлены величины и закономерности изменения перемещений металла и осевых напряжений в очагах деформации при получении стальных полых заготовок на установке совмещенного процесса непрерывного литья и деформации (бойки выполнены по постоянному радиусу). Авторы дают оценку напряженного состояния металла в очагах деформации с позиции улучшения качества стальных полых заготовок при получении на установке непрерывного литья и деформации.</p></abstract><trans-abstract xml:lang="en"><p>The substantiation of the relevance of obtaining continuous cast steel pipe hollow billet is given from the position of improving the quality of pipes made of carbon and alloy steels is given. The article presents an assessment of the quality of the inner surface of pipes made of solid steel pipe billet. A new technology is proposed for the production of hollow steel pipe billets on a resource-saving unit of combined continuous casting and deformation. The photo of the continuous casting and deformation section of JSC Ural Pipe Plant is given, where a pilot unit of combined continuous casting and deformation is installed. The paper presents the results of a theoretical study of stress-strain state of the mandrel and sections of a pipe billet when it is compressed by the strikers of the unit of combined continuous casting and deformation. The authors discuss the general model of the mold – striker system. The initial data on calculation, dimensions of the hollow pipe billet and a description of the calibration of strikers for compression of a hollow steel billet are given. The temperature field of a hollow billet was determined. To simulate the stress-strain state of the metal in the roll pass and the mandrel, four contact pairs were considered. Calculations were made by the finite element method. The dimensions of the final element in the roll pass of hollow billet were determined. The authors established the values and patterns of changes in metal displacements and axial stresses in the roll pass during the production of hollow steel billets in the unit of combined continuous casting and deformation (strikers are made along a constant radius). The stress state of metal in the roll pass was assessed from the standpoint of improving the quality of hollow steel billets.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>установка</kwd><kwd>непрерывное литье</kwd><kwd>боек</kwd><kwd>деформация</kwd><kwd>полая заготовка</kwd><kwd>напряжение</kwd><kwd>конечный элемент</kwd></kwd-group><kwd-group xml:lang="en"><kwd>unit</kwd><kwd>continuous casting</kwd><kwd>anvil</kwd><kwd>deformation</kwd><kwd>hollow billet</kwd><kwd>stress</kwd><kwd>finite element</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">Лехов О.С., Михалев А.В. Установка непрерывного литья и деформации для производства стальных листов и сортовых заготовок. Москва: Вологда: Инфра-Инженерия; 2021:304.</mixed-citation><mixed-citation xml:lang="en">Lekhov O.S., Mikhalev A.V. Unit of Continuous Casting and Deformation for Production of Steel Sheets and Billets. 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