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Silyanov Alexander O.
Kostroma State University
Investigation of the spillability of different precious alloys in the “direct” casting operation by embryous models
Silyanov A. O. Investigation of the spillability of different precious alloys in the “direct” casting operation by embryous models. Technologies & Quality. 2026. No 1(71). P. 76–80. (In Russ.) https://doi.org/ 10.34216/2587-6147-2026-1-71-76-80.
DOI: https://doi.org/10.34216/2587-6147-2026-1-71-76-80
УДК: 671.1+739.2
EDN: QZULSD
Publish date: 2026-02-09
Annotation: The article discusses one of the most common defects in jewellery production, which occurs during the “direct” casting process using lost wax models. It has been experimentally demonstrated that reducing the cross-section of the cast items leads to the formation of defects significantly influenced by the alloy composition and the design of the gating system (the diameter of the feeders and their positioning). It has been shown that by properly designing the gating system, selecting the appropriate alloy, and implementing the appropriate casting techniques, it is possible to achieve high-quality castings with thin elements measuring approximately 0.3 mm.
Keywords: jewellery design, “direct” lost-wax casting, spills, gating system design, casting technology, alloy selection, casting quality
Literature list: 1. Silyanov A. O., Galanin S. I. Design illusions of “direct” casting. Tekhnologii i kachestvo [Technologies & Quality]. 2024;2(64):38–43. (In Russ.) 2. Galanin S. I., Silyanov A. O. From “lost wax” casting to “direct” casting: technology and design. Tekhnologii i kachestvo [Technologies & Quality]. 2025;2(68):65–69. (In Russ.) 3. Silyanov A. O., Galanin S. I. Influence of precious alloys’ properties on the design of castjewellery. Tekhnologii i kachestvo [Technologies & Quality]. 2025;3(69):72–75. (In Russ.) 4. Galanin S. I., Kolupaev K. N. Features of the creation of modern jewelry and art products. Kostroma, Kostroma St. Univ Publ., 2023. 1 CD-ROM (In Russ.) 5. Galanin S. I., Kolupaev K. N. Design and Technology of Jewelry: Russian Features. Dizajn. Materialy. Tekhnologiya [Design. Materials. Technology]. 2011;2(17):60–63. (In Russ.). 6. Galanin S. I., Viskovaty I. S., Kolupaev K. N. Design of Complex-Profile Metal Surfaces. Tekhnologii i kachestvo [Technologies and Quality]. 2017;1(37):25–31. (In Russ.). 7. Galanin S. I., Kolupaev K. N. Features of Design-Engineering of Modern Jewelry. Dizajn. Materialy. Tekhnologiya [Design. Materials. Technology]. 2019;2(54):9–13. (In Russ.).
Author's info: Silyanov Alexander O., Kostroma State University, Kostroma, Russia, silyanov_ao@mail.ru; https://orcid.org/0009-0005-3024-5521