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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">10.17073/0368-0797-2024-4-457-462</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-2769</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 2</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 of continuous casting and deformation. Part 2</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 of 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>2024</year></pub-date><pub-date pub-type="epub"><day>01</day><month>09</month><year>2024</year></pub-date><volume>67</volume><issue>4</issue><fpage>457</fpage><lpage>462</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Лехов О.С., Михалев А.В., Непряхин С.О., 2024</copyright-statement><copyright-year>2024</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/2769">https://fermet.misis.ru/jour/article/view/2769</self-uri><abstract><p>В статье представлены результаты теоретического исследования напряженно-деформированного состояния системы заготовка ‒ оправка при производстве стальных полых заготовок на установке совмещенного непрерывного литья и деформации, в которой рабочие поверхности калиброванных бойков выполнены с переменным радиусом. Обоснована необходимость выполнения рабочей поверхности калиброванных бойков с переменным радиусом и приведены исходные данные для расчетов. Результаты рассматриваются по линиям объемной модели, проходящим через характерные точки очагов деформации. Авторы определили усилия при обжатии бойками стенки полой заготовки и силу вытягивания полой заготовки из кристаллизатора установки. Исследованы закономерности осевых перемещений металла и напряжений в очагах деформации при сжатии стенки полой заготовки при совмещенном процессе непрерывного литья и деформирования. Характер напряженного состояния металлической стенки полой заготовки рассмат­ривается с точки зрения повышения ее качества. Изученная методика позволяет определить напряженно-деформированное состояние оправки при изготовлении полой стальной заготовки с использованием установки непрерывного литья и деформации. Авторами представлены рекомендации для осуществления надежного захвата и обжатия калиброванными бойками полой стальной заготовки, посту­пающей из водоохлаждаемого медного кристаллизатора установки совмещенного процесса непрерывного литья и деформации.</p></abstract><trans-abstract xml:lang="en"><p>The paper presents the results of theoretical research of stress-strain state of a billet – mandrel system when producing steel hollow billets in a unit of combined continuous casting and deformation, in which the working surface of the calibrated anvils are made with a variable radius. The necessity of making the working surface of the calibrated anvils with a variable radius is substantiated and initial data for the calculations is given. The calculation results are considered along the lines of the volumetric model passing through the characteristic points of deformation centers. The authors determined the forces when the anvils compress the wall of a hollow billet and the force of pulling the hollow billet from the mold. The laws of metal axial displacements and stresses in the deformation centers during compressing the wall of a hollow billet was established at the combined process of continuous casting and deformation in the unit. Nature of the stressed state of the metal wall of a hollow billet is considered from the perspective of improving its quality. The technique studied allows to determine the stress-strain state of a mandrel when producing a hollow steel billet using such a unit. The authors provided the recommendations for reliable gripping and compression with calibrated anvils of a hollow steel billet coming from a water-cooled copper mold of the unit of combined continuous casting and deformation.</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., Непряхин С.О. Напряженное состояние системы заготовка – оправка при получении стальной полой заготовки на установке непрерывного литья и деформации. Часть 1. Известия вузов. 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