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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">10.17073/0368-0797-2026-1-84-90</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-3020</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>ИНФОРМАЦИОННЫЕ ТЕХНОЛОГИИ И АВТОМАТИЗАЦИЯ В ЧЕРНОЙ  МЕТАЛЛУРГИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>INFORMATION TECHNOLOGIES AND AUTOMATIC CONTROL IN FERROUS METALLURGY</subject></subj-group></article-categories><title-group><article-title>Моделирование процессов усадки в слябах при разливке стали в машинах непрерывного литья заготовок</article-title><trans-title-group xml:lang="en"><trans-title>Modeling of shrinkage processes in slabs during steel casting in continuous casting machines</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4060-6117</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чуев</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Chuev</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Антон Андреевич Чуев, старший преподаватель кафедры математики и информатики</p><p>Россия, 162600, Вологодская обл., Череповец, пр. Луначарского, 5</p></bio><bio xml:lang="en"><p>Anton A. Chuev, Senior Lecturer of the Chair of Mathematics and Informatics</p><p>5 Lunacharskogo Ave., Cherepovets, Vologda Region 162600, Russian Federation</p></bio><email xlink:type="simple">aachuev@chsu.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>Лукин</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Lukin</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей Владимирович Лукин, д.т.н., профессор кафедры теплоэнергетики и теплотехники</p><p>Россия, 162600, Вологодская обл., Череповец, пр. Луначарского, 5</p></bio><bio xml:lang="en"><p>Sergei V. Lukin, Dr. Sci. (Eng.), Prof. of the Chair Thermal Power and Heat Engineering</p><p>5 Lunacharskogo Ave., Cherepovets, Vologda Region 162600, Russian Federation</p></bio><email xlink:type="simple">s.v.luk@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Череповецкий государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Cherepovets State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>02</day><month>03</month><year>2026</year></pub-date><volume>69</volume><issue>1</issue><fpage>84</fpage><lpage>90</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Чуев А.А., Лукин С.В., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Чуев А.А., Лукин С.В.</copyright-holder><copyright-holder xml:lang="en">Chuev A.A., Lukin S.V.</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/3020">https://fermet.misis.ru/jour/article/view/3020</self-uri><abstract><p>Предложена математическая модель усадочного процесса в непрерывнолитом слябе при его охлаждении и затвердевании. В основе модели лежат решение уравнения нестационарной теплопроводности и положения теории о квазиравновесной двухфазной зоне. В отличие от ранее предложенных моделей процесса охлаждения и затвердевания сляба, предлагаемая модель учитывает зависимость теплофизических свойств стали от температуры, а также такие особенности, как химический состав разливаемой стали, геометрическую форму поперечного сечения сляба и технологические параметры скорости разливки и интенсивности охлаждения сляба в зоне вторичного охлаждения. Модель реализует решение уравнения теплопроводности с помощью метода конечных разностей, аппроксимация частных производных выполнена по явной схеме. В ходе моделирования производится вычисление температурного поля в расчетной области, представляющей собой четверть поперечного сечения сляба. При этом учитываются граничные условия в кристаллизаторе и секциях охлаждения зоны вторичного охлаждения машины непрерывного литья заготовок. Также модель реализует расчет суммарной усадки в слябе с момента начала кристаллизации. С помощью модели возможно вычисление глубины усадочной раковины, образующейся в слябе после разливки. Адекватность модели подтверждена верификацией, выполненной путем сравнения данных моделирования с экспериментальными данными по глубине усадочной раковины. Выявлена зависимость точности моделирования от количества узлов расчетной сетки. Представленная модель позволяет рассчитывать глубину усадочной раковины и разрабатывать рекомендации по настройке конусности кристаллизатора и параметров роликовой проводки машины непрерывного литья заготовок в зависимости от величины усадки металла при охлаждении и затвердевании непрерывнолитых слябов.</p></abstract><trans-abstract xml:lang="en"><p>Mathematical model of the shrinkage process in a continuously cast slab during its cooling and solidification is proposed. The model is based on solution of the equation of non-stationary thermal conductivity and provisions of the theory of a quasi-equilibrium two-phase zone. Unlike previously proposed models of the slab cooling and solidification process, the proposed one takes into account the dependence of thermal properties of the steel on temperature, as well as such features as chemical composition of the cast steel, geometric shape of the slab cross-section and the process parameters of casting rate and intensity of slab cooling in the secondary cooling zone. The model implements the solution of the heat conductivity equation using the finite difference method, approximation of partial derivatives is performed according to an explicit scheme. During modeling, the temperature field is calculated in the computational domain, which is a quarter of the slab cross-section. In this case, the boundary conditions in the mold and cooling sections of the secondary cooling zone of continuous casting machine are taken into account. The model also implements calculation of the total shrinkage in the slab from the moment of crystallization and also can be used to calculate the shrinkage cavity depth formed in the slab after casting. The model adequacy is confirmed by verification performed by comparing the modeling data with experimental data on the shrinkage cavity depth. Dependence of the modeling accuracy on the number of computational grid nodes is also revealed. The presented model allows calculating the shrinkage cavity depth and developing recommendations for adjusting the mold taper and the parameters of continuous casting machine roller guide depending on the amount of metal shrinkage during cooling and solidification of continuously cast slabs.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>непрерывная разливка</kwd><kwd>усадка</kwd><kwd>сляб</kwd><kwd>математическая модель</kwd><kwd>усадочная раковина</kwd><kwd>кристаллизация</kwd><kwd>двухфазная зона</kwd><kwd>теплоемкость</kwd><kwd>численные методы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>continuous casting</kwd><kwd>shrinkage</kwd><kwd>slab</kwd><kwd>mathematical model</kwd><kwd>shrinkage cavity</kwd><kwd>crystallization</kwd><kwd>two-phase zone</kwd><kwd>heat capacity</kwd><kwd>numerical methods</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">Bauman H.G., Schafer G. 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