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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">10.17073/0368-0797-2024-5-593-603</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-2797</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>Влияние режимов уплотнения воскообразных порошков на напряженно-деформированное состояние прессовок, применяемых в точном литье</article-title><trans-title-group xml:lang="en"><trans-title>Influence of compression modes of waxy powders on stress-strain state of compacts used in precision casting</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8769-8194</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Богданова</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Bogdanova</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Нина Анатольевна Богданова, младший научный сотрудник лаборатории проблем создания и обработки материалов и изделий</p><p>Россия, 681005, Хабаровский край, Комсомольск-на-Амуре, ул. Металлургов, 1</p></bio><bio xml:lang="en"><p>Nina A. Bogdanova, Junior Researcher of the Laboratory of Problems of Creation and Processing of Materials and Products</p><p>1 Metallurgov Str., Komsomolsk-on-Amur, Khabarovsk Territory 681005, Russian Federation</p></bio><email xlink:type="simple">joyful289@inbox.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/0000-0002-0865-7109</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жилин</surname><given-names>С. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhilin</surname><given-names>S. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей Геннадьевич Жилин, к.т.н., доцент, ведущий научный сотрудник лаборатории проблем создания и обработки материалов и изделий</p><p>Россия, 681005, Хабаровский край, Комсомольск-на-Амуре, ул. Металлургов, 1</p></bio><bio xml:lang="en"><p>Sergei G. Zhilin, Cand. Sci. (Eng.), Assist. Prof., Leading Researcher of the Laboratory of Problems of Creation and Processing of Materials and Products</p><p>1 Metallurgov Str., Komsomolsk-on-Amur, Khabarovsk Territory 681005, Russian Federation</p></bio><email xlink:type="simple">zhilin@imim.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт машиноведения и металлургии Хабаровского Федерального исследовательского центра Дальневосточного отделения РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Metallurgy and Mechanical Engineering of the Khabarovsk Federal Research Center, Far-Eastern Branch of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>29</day><month>10</month><year>2024</year></pub-date><volume>67</volume><issue>5</issue><fpage>593</fpage><lpage>603</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Богданова Н.А., Жилин С.Г., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Богданова Н.А., Жилин С.Г.</copyright-holder><copyright-holder xml:lang="en">Bogdanova N.A., Zhilin S.G.</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/2797">https://fermet.misis.ru/jour/article/view/2797</self-uri><abstract><p>Высокие требования, предъявляемые к качеству поверхности и сложности геометрии металлоизделий, конструкций и узлов деталей, получаемых из широкой линейки цветных и черных сплавов, определяют востребованность литья по выплавляемым моделям (ЛВМ) как метода, обеспечивающего номенклатуру изделий ответственного назначения для нужд авиа-, судо-, и машиностроения. К ряду «узких» мест в реализации процессов ЛВМ можно отнести значительное число технологических операций, каждая из которых сопровождается явлениями теплофизической природы, требующих коррекции, что в конченом итоге определяет высокую стоимость литья. Сложность представляют такие явления, как усадка модельного материала, его температурное расширение на стадиях выплавления из керамической формы, определяющее проникновение модельной массы в поры керамики и способное повлиять на появление поверхностных дефектов, химический состав и структуру сплава будущей отливки. На устранение отмеченных недостатков направлен процесс формирования пористой поверхности выплавляемой модели без усадочных дефектов путем прессования порошков воскообразных модельных материалов, что обеспечивает требуемую геометрию прессовок и отсутствие деформационного воздействия на керамику модельного материала на стадии его выплавления. Широкому распространению метода препятствует недостаток сведений об особенностях управления напряжениями в теле прессовки, определяющими величину упругого отклика уплотняемого материала, который на порядок меньше, чем тепловая усадка. В работе представлены результаты экспериментального определения влияния скорости уплотнения порошковых модельных материалов на напряженно-деформированное состояние прессованных выплавляемых моделей, формируемых в закрытой матрице, а также на прочность таких прессовок.</p></abstract><trans-abstract xml:lang="en"><p>The high demands placed on the surface quality and geometric complexity of metal products, structures and parts produced from a wide range of non-ferrous and ferrous alloys determine the demand for investment casting as a method that provides a range of critical products for the needs of aircraft, ship building and mechanical engineering industries. A number of “bottlenecks” in the implementation of investment casting processes include a significant number of technological operations, each of them is accompanied by phenomena of a thermophysical nature that require correction, and it ultimately determines the high cost of casting. The difficulties arise from phenomena such as shrinkage of the pattern material, its thermal expansion during melting from a ceramic mold, which determines penetration of pattern mass into ceramic pores and can affect the appea­rance of surface defects, the chemical composition and structure of the alloy of future casting. The process of forming a porous surface on wax patterns without shrinkage defects by pressing powders of waxy materials is aimed at eliminating the noted shortcomings, which ensures the required geometry of the compacts and absence of deformation effects on ceramics of the model material at the stage of its melting. Widespread use of the method is hampered by the lack of information about the features of stress control in the compact body determining the magnitude of elastic response of the compacted material, which is an order of magnitude less than thermal shrinkage. The paper presents the results of an experimental study of influence of the compression rate of powder materials on the stress-strain state of pressed wax patterns formed in a closed matrix, as well as on the strength of these compacts.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>экспериментальное моделирование</kwd><kwd>машиностроительные процессы</kwd><kwd>литье по выплавляемым моделям</kwd><kwd>напряженно-деформированное состояние</kwd><kwd>прессовка</kwd><kwd>пористость</kwd><kwd>упругий отклик</kwd><kwd>прочность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>experimental modeling</kwd><kwd>mechanical engineering processes</kwd><kwd>investment casting</kwd><kwd>stress-strain state</kwd><kwd>pressing</kwd><kwd>porosity</kwd><kwd>elastic response</kwd><kwd>strength</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания Института машиноведения и металлургии Хабаровского Федерального исследовательского центра ДВО РАН. В работе использованы фото Фирсова С.В.</funding-statement><funding-statement xml:lang="en">The work was performed within the framework of a state assignment of the Khabarovsk Federal Research Center, Far-Eastern Branch of the Russian Academy of Sciences. The authors used photos by Firsov S.V.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Wang B., Zhang Z., Xu G., Zeng X., Hu W., Matsubae K. Wrought and cast aluminum flows in China in the context of electric vehicle diffusion and automotive lightweighting. Resources, Conservation and Recycling. 2023;191:106877. https://doi.org/10.1016/j.resconrec.2023.106877</mixed-citation><mixed-citation xml:lang="en">Wang B., Zhang Z., Xu G., Zeng X., Hu W., Matsubae K. Wrought and cast aluminum flows in China in the context of electric vehicle diffusion and automotive lightweighting. 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