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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">10.17073/0368-0797-2022-6-381-389</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-2318</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>Прокатка длинномерных рельсов с ускорением</article-title><trans-title-group xml:lang="en"><trans-title>Rolling of long-length rails with acceleration</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1453-2422</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Соловьев</surname><given-names>В. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Solov’ev</surname><given-names>V. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владимир Николаевич Соловьев, к.т.н., доцент кафедры обработки металлов давлением</p><p>Россия, 398055, Липецк, ул. Московская, 30</p></bio><bio xml:lang="en"><p>Vladimir N. Solov’ev, Cand. Sci. (Eng.), Assist. Prof. of the Chair of Metal Forming</p><p>30 Moskovskaya Str., Lipetsk 398055, Russian Federation</p></bio><email xlink:type="simple">solovyovvn@mail.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>Белолипецкая</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Belolipetskaya</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Елизавета Сергеевна Белолипецкая, студент кафедры обработки металлов давлением</p><p>Россия, 398055, Липецк, ул. Московская, 30</p></bio><bio xml:lang="en"><p>Elizaveta S. Belolipetskaya, Student of the Chair of Metal Forming</p><p>30 Moskovskaya Str., Lipetsk 398055, Russian Federation</p></bio><email xlink:type="simple">belolipetskaya_es@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Липецкий государственный технический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Lipetsk State Technical 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>381</fpage><lpage>389</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Соловьев В.Н., Белолипецкая Е.С., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Соловьев В.Н., Белолипецкая Е.С.</copyright-holder><copyright-holder xml:lang="en">Solov’ev V.N., Belolipetskaya E.S.</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/2318">https://fermet.misis.ru/jour/article/view/2318</self-uri><abstract><p>В статье рассматривается новый температурно-скоростной режим прокатки длинномерных рельсов. Рельсы длиной до 50 м прокатывали на линейных станах. Производство рельсов большей длины потребовало использования заготовок большей массы и оборудования новой конструкции. На современных рельсобалочных станах количество клетей увеличено, часть клетей объединена в непрерывную группу, универсальные клети стали применять не только в качестве калибрующих. Рельсы длиной 100 м прокатывают из заготовок большой массы на станах с непрерывной реверсивной группой универсальных клетей. Существенная длина заготовки приводит к образованию «температурного клина» – снижению температуры по длине рельсов во время прокатки в последней клети стана. Расчетом показано, что снижение температуры по длине рельсов может приводить к увеличению их высоты. Аналогичная проблема существует и при производстве тонкого листового проката на непрерывном широкополосном стане горячей прокатки. Прокатка раската в чистовой группе клетей с ускорением позволяет сократить время остывания заднего участка раската и разогреть металл за счет более интенсивной деформации. Ускорение выбирается таким, чтобы на выходе из чистовой группы клетей температура полосы была одинаковой по всей длине. В настоящей работе предлагается прокатка рельсов с ускорением, которое должно обеспечивать одинаковую температуру шейки по длине рельсов в последней клети стана, что снизит разность высоты по длине проката. Одинаковая высота рельсов по длине уменьшит затраты на шлифовку и ускорит монтаж, тем самым повысит потребительский спрос и конкурентоспособность рельсов.</p></abstract><trans-abstract xml:lang="en"><p>The article explains a new temperature-speed mode of rolling long-length rails. Rails up to 50 m long were rolled on linear mills. The production of rails of longer length required the use of larger mass billets and equipment of a new design. At the modern rail-beam rolling mill, the number of stands has increased and some of the stands are combined into a continuous group. Universal rolling stands began to be used not only as calibration stands. Rails with a length of 100 m are rolled from large-mass billets on mills with a continuous reversible group of universal stands. A significant length of the billet leads to the formation of a «temperature wedge» – a decrease in temperature along the length of the rail during rolling in the last stand of the mill. The calculation showed that a decrease in temperature along the rail length can lead to an increase in its height. A similar problem existed in the production of thin sheet metal at continuous broadband hot rolling mill. Rolling the rolled metal in the finishing group of stands with acceleration made it possible to reduce the cooling time of rear section of the rolled metal and warm up the metal due to more intense deformation. The acceleration value is chosen such that at the exit from the finishing group of stands, temperature of the strip is the same along the length of the strip. In this paper, rolling rails with acceleration is proposed. The acceleration value should ensure the same neck temperature along the length of the rail in the mill last stand, which will reduce the height difference along the length of the rolled product. The same rails height along the length will reduce the cost of grinding and accelerate the rail laying, thereby increasing consumer demand and competitiveness of the product.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>длинномерные рельсы</kwd><kwd>реверсивная группа прокатных клетей</kwd><kwd>ускорение</kwd><kwd>температурный клин</kwd><kwd>высота рельсов</kwd></kwd-group><kwd-group xml:lang="en"><kwd>long-length rails</kwd><kwd>continuously reversible group of rolling stands</kwd><kwd>acceleration</kwd><kwd>temperature wedge</kwd><kwd>rail height</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">Грудев А.П., Машкин Л.Ф., Ханин М.И. Технология прокатного производства. М.: Металлургия, 1994. 656 с.</mixed-citation><mixed-citation xml:lang="en">Grudev A.P., Mashkin L.F., Khanin M.I. Technology of Rolling Production. Moscow: Metallurgiya, 1994, 656 p. 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