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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">10.17073/0368-0797-2021-12-903-908</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-2220</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>Гидродинамический эффект технологической смазки и формирование режимов трения при листовой прокатке</article-title><trans-title-group xml:lang="en"><trans-title>Hydrodynamic effect  of technological lubrication and friction modes formation at sheet rolling</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4347-8181</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Колмогоров</surname><given-names>Г. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Kolmogorov</surname><given-names>G. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Герман Леонидович Колмогоров, д.т.н, профессор кафедры «Динамика и прочность машин»</p><p>614990, Пермь, Комсомольс­кий пр., 29</p></bio><bio xml:lang="en"><p>German L. Kolmogorov, Dr. Sci. (Eng.), Prof. of the Chair “Dynamics and Strength of Machines”</p><p>29 Komsomolskii Ave., Perm 614990</p></bio><email xlink:type="simple">dpm@pstu.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/0000-0002-5060-4801</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мельникова</surname><given-names>Т. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Mel’nikova</surname><given-names>T. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Татьяна Евгеньевна Мельникова, к.т.н., доцент кафедры «Динамика и прочность машин»</p><p>614990, Пермь, Комсомольс­кий пр., 29</p></bio><bio xml:lang="en"><p>Tat’yana E. Mel’nikova, Cand. Sci. (Eng.), Assist. Prof. of the Chair “Dynamics and Strength of Machines”</p><p>29 Komsomolskii Ave., Perm 614990</p></bio><email xlink:type="simple">taevmel@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Пермский национальный исследовательский политехнический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Perm National Research Polytechnic University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>24</day><month>01</month><year>2022</year></pub-date><volume>64</volume><issue>12</issue><fpage>903</fpage><lpage>908</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Колмогоров Г.Л., Мельникова Т.Е., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Колмогоров Г.Л., Мельникова Т.Е.</copyright-holder><copyright-holder xml:lang="en">Kolmogorov G.L., Mel’nikova T.E.</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/2220">https://fermet.misis.ru/jour/article/view/2220</self-uri><abstract><p>Одной из основных отраслей металлургической промышленности является обработка металлов давлением. Целью такой обработки является формирование изделий из металлических заготовок простых форм. Важная роль при этом принадлежит технологии листовой прокатки. Решение вопросов, связанных с выбором оптимальных режимов листовой прокатки, является актуальным для специалистов в рассматриваемой области. Процесс прокатки металлоизделий специфичный, так как контактные напряжения могут превышать сопротивление деформации прокатываемого металла в несколько раз. Задачи прогнозирования качества изделий с учетом предупреждения дефектов сплошности листового металла, а также исследования надежности технологических операций процесса прокатки связаны с решением производственных и научных проблем в рассматриваемой области. Отечественными и зарубежными исследователями отмечено значительное влияние внешнего трения в очаге деформирования на технологические параметры процесса прокатки и качество получаемой металлопродукции. Известно, что без внешнего трения между металлом и валком прокатка невозможна. Снижение трения обеспечивает возможность повышения экономических показателей процесса листовой прокатки, а сама технология прокатного производства обладает значительными возможностями для дальнейшего усовершенствования. Моделировать условия трения в зоне деформации позволяет технология листовой прокатки в условиях гидродинамического режима трения. Учет гидродинамического эффекта смазки позволяет оценивать влияние технологических факторов на условия контактного трения при обработке металлов давлением и управлять процессом прокатки. Исследованы закономерности течения жидкой ньютоновской смазки с учетом особенностей геометрии зоны деформации при листовой прокатке. Определена нагнетающая способность смазочного клина, которая позволяет объяснить закономерности влияния смазки на условия трения. В качестве примера представлены результаты расчета давления смазки в зависимости от скорости прокатки. Приведены скорости прокатки, обеспечивающие жидкостный режим трения. Полученные соотношения позволяют оценить влияние контактного трения на технологические параметры процесса листовой прокатки и могут быть использованы в технологических расчетах данного процесса.</p></abstract><trans-abstract xml:lang="en"><p>One of the main engineering industries is the processing of metals by pressure. Its purpose is the formation of products from metal blanks of simple forms. An important role in this case belongs to the technology of sheet rolling. The solution of issues related to the choice of optimal modes of sheet rolling is relevant for specialists in the field under consideration. The process of rolling metal products is special, since the contact stresses can exceed the deformation resistance of rolled metal by several times. The tasks of predicting the quality of products, taking into account the prevention of sheet metal continuity defects, as well as the study of technological operations reliability of rolling process are associated with the solution of industrial and scientific problems in this area. Domestic and foreign researchers have noted a significant influence of external friction in the deformation center on the technological parameters of rolling process and quality of the resulting metal products. It is known that rolling is impossible without external friction between metal and roll. The reduction of friction provides an opportunity to increase the economic indicators of sheet rolling, and the rolling production technology itself has significant opportunities for further improvement. Technology of sheet rolling in the conditions of hydrodynamic friction mode allows modeling of friction conditions in the deformation zone. Taking into account the hydrodynamic effect of lubrication allows us to assess the influence of technological factors on the conditions of contact friction during metal pressure treatment and to control the rolling process. Regularities of the flow of liquid Newtonian lubricant are investigated, taking into account features of the deformation zone geometry during sheet rolling. Pumping capacity of the lubricating wedge during rolling is determined, which allows us to explain the regularities of lubrication influence on friction conditions. As an example, the results of calculation of the lubricant pressure depending on the rolling speed are presented. The rolling speeds that provide a liquid friction mode are given. The obtained relations allow us to estimate the influence of contact friction on technological parameters of sheet rolling and can be used in technological calculations of this process</p></trans-abstract><kwd-group xml:lang="ru"><kwd>внешнее трение</kwd><kwd>гидродинамический режим трения</kwd><kwd>смазка</kwd><kwd>шероховатость поверхности</kwd><kwd>контактные напряжения</kwd><kwd>давление смазки</kwd><kwd>деформация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>sheet rolling</kwd><kwd>external friction</kwd><kwd>hydrodynamic mode of friction</kwd><kwd>lubrication</kwd><kwd>surface roughness</kwd><kwd>contact stresses</kwd><kwd>lubrication pressure</kwd><kwd>deformation</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">Azushima A. Tribology in Sheet Rolling Technology. Switzerland: Springer Int. 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