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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">10.17073/0368-0797-2019-4-308-314</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-1645</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>НАУКА ПРОИЗВОДСТВУ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>SCIENCE APPLICATION</subject></subj-group></article-categories><title-group><article-title>К ИССЛЕДОВАНИЮ КИНЕМАТИКИ МЕТАЛЛУРГИЧЕСКИХ НОЖНИЦ С ПАРАЛЛЕЛЬНЫМИ НОЖАМИ</article-title><trans-title-group xml:lang="en"><trans-title>KINEMATICS OF METALLURGICAL CUTTERS WITH PARALLEL BLADES</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>Бычков</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bychkov</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант кафедры «Механика и машиностроение»</p><p>654007, Кемеровская обл., Новокузнецк, ул. Кирова, 42</p></bio><bio xml:lang="en"><p>Postgraduate of the Chair “Mechanics and Mechanical Engineering”</p><p>Novokuznetsk, Kemerovo Region</p></bio><email xlink:type="simple">elbibl@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>Дворников</surname><given-names>Л. Т.</given-names></name><name name-style="western" xml:lang="en"><surname>Dvornikov</surname><given-names>L. T.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.т.н., профессор кафедры «Механика и машиностроение»</p><p>654007, Кемеровская обл., Новокузнецк, ул. Кирова, 42</p></bio><bio xml:lang="en"><p>Dr. Sci. Eng., Professor of the Chair “Mechanics and Mechanical Engineering”</p><p>Novokuznetsk, Kemerovo Region</p></bio><email xlink:type="simple">tmmiok@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>Жуков</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhukov</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.т.н., доцент кафедры «Механика и машиностроение»</p><p>654007, Кемеровская обл., Новокузнецк, ул. Кирова, 42</p></bio><bio xml:lang="en"><p>Dr. Sci. Eng., Assist. Professor, Head of the Chair “Mechanics and Mechanical Engineering”</p><p>Novokuznetsk, Kemerovo Region</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Сибирский государственный индустриальный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Siberian State Industrial University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>20</day><month>06</month><year>2019</year></pub-date><volume>62</volume><issue>4</issue><fpage>308</fpage><lpage>314</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Бычков И.В., Дворников Л.Т., Жуков И.А., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Бычков И.В., Дворников Л.Т., Жуков И.А.</copyright-holder><copyright-holder xml:lang="en">Bychkov I.V., Dvornikov L.T., Zhukov I.A.</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/1645">https://fermet.misis.ru/jour/article/view/1645</self-uri><abstract><p>Процесс резания на ножницах с параллельными ножами состоит из трех периодов: вмятия ножей в металл; резания; скалывания (отрыва). Максимальное усилие требуется в конце периода вмятия и начале резания. Так как один из ножей неподвижен, то второму в процессе резания нужно углубиться на всю толщину металла, чтобы разрезать заготовку. Например, если толщина металла20 мм, то для его разрезания верхнему ножу нужно пройти20 мм. Если сделать подвижными оба ножа, которые будут двигаться навстречу друг другу, то усилия резания станут меньше. При этом каждый нож при резании металла толщиной20 ммбудет проходить расстояние10 мм. Для того, чтобы механизм ножниц с двумя подвижными ножами не был излишне сложным, важно обеспечить его подвижность от одного привода. Встает актуальный вопрос о возможности организации встречного движения ножей при гарантированной прочности звеньев, передающих усилия на ножи. Предлагается кинематическая схема ножниц с параллельными ножами, движущимися параллельно друг другу в вертикальной плоскости. Преимущества предложенной конструкции ножниц заключаются в том, что при встречном движении ножей требуется меньше усилий для разрезания заготовок; усилие от каждого ножа распределяется на два шатуна, что снижает нагрузку на каждый из них. Так как ножи движутся навстречу друг другу, то основное усилие резания распределяется по звеньям механизма и передается к двигателю, что позволяет снизить нагрузку на станину и фундамент при резании. При встречном движении ножей происходит более быстрое разделение металла, что позволяет сосредоточить максимальное усилие в момент реза при минимальной нагрузке на двигатель; отрезаемая часть заготовки не уходит ниже рольганга в конце резания, поэтому не требуется установки нижнего подвижного стола. Подвижность предлагаемого механизма определена по формуле П.Л. Чебышева и ее значение составило единицу. Кинематический анализ ножей проведен с использованием специального метода, который заключается в использовании точки пересечения шатунов.</p></abstract><trans-abstract xml:lang="en"><p>Cutting with parallel blades cutters consists of three periods: blades ridging in metal; cutting; chipping (separation). Maximum force is required at the end of the ridging period and at the beginning of cutting. Since one of the blades is stationary, the second blade in cutting process has to go deep into the entire thickness of metal to cut the billet. For example, if thickness of metal is20 mm, then the upper blade needs to pass20 mmfor its cutting. If you make both blades moving towards each other, cutting eﬀort will be less. In this case, each blade cutting20 mmof metal will pass 10mm. In order not to make mechanism of cutter with two movable blades too complicated, it is important to ensure its mobility from one drive. So, there acute the issue of arrangement possibility of blades moving towards each other with guaranteed strength of the units, transmitting eﬀort on the blades. Kinematic scheme of cutters with blades moving parallel to each other in a vertical plane is proposed. Advantages of the proposed cutters design are the following: counter movement of blades requires less eﬀort to cut the billet; force from each blade is distributed to two connecting rods, reducing load on each of them; since blades move towards each other, the main cutting force is distributed along the units of the mechanism and is transmitted to the engine, which reduces load on the frame and foundation when cutting; when blades move towards each other, metal separation occurs faster, it allows to concentrate maximal force during cutting with minimal load on the engine; the cut part of the billet does not fall below the roller bed at the end of cutting, so installation of the lower movable table is not required. Mobility of the proposed mechanism is determined by P.L. Chebyshev formula with its value = 1. Kinematic analysis of blades is carried out using a special method, which is in using point of connecting rods intersection.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>высокотемпературное моделирование</kwd><kwd>верхняя и комбинированная продувка</kwd><kwd>конвертерная ванна</kwd><kwd>реакционная зона</kwd><kwd>гидрогазодинамика</kwd><kwd>тепломассообмен</kwd></kwd-group><kwd-group xml:lang="en"><kwd>cutters</kwd><kwd>parallel blades</kwd><kwd>metallurgical equipment</kwd><kwd>metal cutting</kwd><kwd>lever mechanism</kwd><kwd>kinematics</kwd><kwd>velocity diagram</kwd><kwd>acceleration diagram</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">Никитин А.Г., Епифанцев Ю.А., Демина Е.И. Определение усилия резания на ножницах предварительно изогнутой полосы // Изв. вуз. 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