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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">lim</journal-id><journal-title-group><journal-title xml:lang="ru">Литье и металлургия</journal-title><trans-title-group xml:lang="en"><trans-title>Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1683-6065</issn><issn pub-type="epub">2414-0406</issn><publisher><publisher-name>BNTU</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21122/1683-6065-2025-4-35-39</article-id><article-id custom-type="elpub" pub-id-type="custom">lim-3827</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>Литейное производство</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Foundry</subject></subj-group></article-categories><title-group><article-title>Экспериментальные исследования возможностей технологии изготовления оболочечных литейных стержней на основе целлюлозы</article-title><trans-title-group xml:lang="en"><trans-title>Experimental research into feasibility of cellulose‑based shell core‑making technology</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>Войтенко</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Voytenko</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>г. Луганск, Луганская Народная Республика, Россия,кв. Молодежный, 20А. E‑mail: valery.voytenko@outlook.com</p></bio><bio xml:lang="en"><p>Lugansk, Lugansk People’s Republic, Russia, 20A, Molodozhnyy Block.E‑mail: valery.voytenko@outlook.com</p></bio><email xlink:type="simple">valery.voytenko@outlook.com</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>Медведчук</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Medvedchuk</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>г. Луганск, Луганская Народная Республика,Россия,кв. Молодежный, 20А</p></bio><bio xml:lang="en"><p>Lugansk, Lugansk People’s Republic, Russia, 20A, Molodozhnyy Block.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Брешев</surname><given-names>В. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Breshev</surname><given-names>V. Е.</given-names></name></name-alternatives><bio xml:lang="ru"><p>г. Луганск,Луганская Народная Республика,Россия,кв. Молодежный, 20А.</p></bio><bio xml:lang="en"><p>Lugansk,Lugansk People’s Republic,Russia, 20A, Molodozhnyy Block.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Войтенко</surname><given-names>Г. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Voytenko</surname><given-names>G. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>г. Луганск, Луганская Народная Республика, Россия,кв. Молодежный, 20А</p></bio><bio xml:lang="en"><p>Lugansk, Lugansk People’s Republic,Russia, 20A, Molodozhnyy Block.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Луганский государственный университет им. В. Даля</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Vladimir Dal Lugansk State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>09</day><month>12</month><year>2025</year></pub-date><volume>0</volume><issue>4</issue><fpage>35</fpage><lpage>39</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Войтенко В.В., Медведчук С.А., Брешев В.Е., Войтенко Г.О., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Войтенко В.В., Медведчук С.А., Брешев В.Е., Войтенко Г.О.</copyright-holder><copyright-holder xml:lang="en">Voytenko V.V., Medvedchuk S.A., Breshev V.Е., Voytenko G.O.</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://lim.bntu.by/jour/article/view/3827">https://lim.bntu.by/jour/article/view/3827</self-uri><abstract><p>Рассматриваются резервы усовершенствования оболочечной стержневой технологии на неорганическом связующем веществе – жидком натриевом стекле за счет объединения достоинств стержневого V‑процесса и жидкостекольного стержневого процесса, использующего в качестве основного компонента стержневой смеси первичную целлюлозу либо формовочную бумажную массу (пульперкартон в жидкой фазе). Предлагается технология изготовления оболочечных целлюлозно‑жидкостекольных литейных стержней из пульперкартона с использованием жидкого натриевого стекла в качестве связующего вещества, включающая в себя подготовительные операции измельчения и набухания первичной целлюлозы, добавление воды и жидкого натриевого стекла, формирование оболочки, сушку, заполнение оболочки сухим формовочным кварцевым песком либо оборотной стержневой смесью, запечатывание и окончательную сушку оболочечного целлюлозно‑жидкостекольного литейного стержня в сушильном шкафу. Представлены результаты экспериментальных исследований физико‑технических свойств оболочечных целлюлозно‑жидкостекольных литейных стержней и обсуждаются перспективы промышленного применения предложенной стержневой технологии.</p></abstract><trans-abstract xml:lang="en"><p>This paper explores opportunities for improving shell core‑making technology using an inorganic binder – liquid sodium silicate – by integrating the advantages of the V‑Process and a sodium silicate‑based core‑making process, which employs primary cellulose or aqueous suspension of pulped cardboard fibers as the principal component of a core molding mixture. A core‑making technology for cellulose‑based, sodium silicate‑bonded shell cores, in which pulped cardboard serves as the cellulose source, has been presented. This technology includes preparatory operations such as milling and swelling of primary cellulose, addition of both water and liquid sodium silicate, shell formation, drying, filling the shell with dry quartz molding sand or a recycled core mixture, sealing, and final drying of a cellulose‑based, sodium silicate‑bonded shell core in a drying oven. The results of experimental research into the physical and technical properties of cellulose‑based, sodium silicate‑bonded shell cores have been demonstrated, and the prospects for industrial application of the proposed core‑making technology have been discussed.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Целлюлоза</kwd><kwd>стержневая смесь</kwd><kwd>стержневой процесс</kwd><kwd>оболочка</kwd><kwd>прочность</kwd><kwd>литейный стержень</kwd><kwd>жидкое натриевое стекло</kwd><kwd>формовочный кварцевый песок</kwd><kwd>выбиваемость</kwd><kwd>пульперкартон</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Cellulose</kwd><kwd>core molding mixture</kwd><kwd>core‑making process</kwd><kwd>shell</kwd><kwd>strength</kwd><kwd>foundry core</kwd><kwd>liquid sodium silicate</kwd><kwd>quartz molding sand</kwd><kwd>knockout performance</kwd><kwd>pulped cardboard</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">Iron and Steel Castings and Core Production Results from Finer Grades of Chromite Sand in Shell Applications / R. 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