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Gennady Gun's scientific school: to his 85th anniversary
Название Influence of platinite wire parameters on its functional properties
DOI 10.17580/chm.2024.06.03
Автор I. G. Gun, E. G. Kasatkina, I. Yu. Mezin, A. S. Limarev
Информация об авторе

Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia
I. G. Gun, Dr. Eng., Prof., Dept. of Technology, Certification and Service of Automotives, e-mail: tssa@magtu.ru
E. G. Kasatkina, Cand. Eng., Associate Prof., Dept. of Technology, Certification and Service of Automotives, e-mail: kasatkina_tssa@mail.ru
I. Yu. Mezin, Dr. Eng., Prof., Head of the Dept. of Technology, Certification and Service of Automotives, e-mail: i.mezin@magtu.ru
A. S. Limarev, Cand. Eng., Associate Prof., Dept. of Technology, Certification and Service of Automotives, e-mail: aslimarev@mail.ru

Реферат

The paper analyzes the influence of platinite wire parameters on its functional properties. Platinite is a bimetallic composite material for special purposes, including a core made of precision iron-nickel alloy 43N and an outer shell made of electrical copper. The parameters being studied are the coefficient of linear thermal expansion (CLTE), the value of which is influenced by the thickness of platinite components and the presence of an oxide layer on the wire surface. In this work, a functional property is understood as the possibility of forming a vacuum-tight junction of platinite with glass. The study of regularities of influence of platinite wire thickness variation on CLTE was carried out by the method of theoretical analysis and design experiment. Test calculations were carried out using the analytical dependencies obtained during the theoretical study, taking into account the information on physical and mechanical properties of the materials under study. It is noted that the actual value of CLTE of platinite is sensitive to two factors: the nickel content in the core material and the mass fraction of copper in the composition. Dependencies are presented that make it possible to calculate the numerical values of the mass fraction of copper in the directions of the maximum and minimum thickness of the shell, which determine the radial thermal expansion of the composition in these directions and reflect the unevenness of the thermal deformation of the cross-sectional contour as a whole. The analysis showed that even full compliance of platinite quality with the requirements of current regulatory documents does not exclude the appearance of defects in the form of glass coming off or cracking even at the stage of device manufacturing. The possibility of loss of tightness of electrovacuum devices during further operation is also not excluded.

Ключевые слова Platinite, bimetallic wire, coefficient of linear thermal expansion, thickness variation, thickness variation coefficient, vacuum-dampened junction, oxidized platinite
Библиографический список

1. Gun G. S. Innovative solutions in metal forming. Kachestvo v obrabotke materialov. 2014. No. 2 (2). pp. 5–26.
2. Rubin G. Sh., Chukin M. V., Gun G. S. et al. Development of qualimetry theory for hardware products. Chernye Metally. 2012. No.7. pp. 15–20.
3. Gun G. S., Mezin I. Yu., Rubin G. Sh. et al. Genesis of scientific research in the field of quality of metal products. Vestnik Magnitogorskogo gosudarstvennogo tekhnicheskogo universiteta imeni G. I. Nosova. 2014. No. 1 (45). pp. 92–96.
4. Gun G. S., Mezin I. Yu., Korchunov A. G. et al. Scientific and pedagogical school of Magnitogorsk State Technical University for quality management of products and production processes. Kachestvo v obrabotke materialov. 2014. No. 1 (1). pp. 5–9.
5. Gun G. S. Development of the theory of metal forming (scientific review). Part 1. Vestnik Yuzhno-Uralskogo gosudarstvennogo universiteta. Seriya: Metallurgiya. 2015. Vol. 15. No. 2. pp. 34–48.
6. Gun G. S. Theory of quality of metal products (scientific review). Vestnik Cherepovetskogo gosudarstvennogo universiteta. 2015. No. 4 (65). pp. 14–19.
7. Chukin M. V. Development of the theory of quality of metal products. Kachestvo v obrabotke materialov. 2015. No. 1 (3). pp. 5–10.
8. Kasatkina E. G., Mezin I. Yu., Gun I. G. et al. Technological basis for improving the quality of platinite. Vestnik Yuzhno-Uralskogo gosudarstvennogo universiteta. Seriya: Metallurgiya. 2018. Vol. 18. No. 4. pp. 98–108. DOI: 10.14529/met180411
9. Nishchev K. N., Mishkin V. P., Vilkova M. V. et al. Study of the microstructure and elemental composition of platinite using TEM and SEM methods. Oboronnyi kompleks — nauchnotekhnicheskomu progressu Rossii. 2014. No. 1 (121). pp. 43–48.
10. Ulybysheva L. P., Tykochinsky D. S. Rational using of the platinum metals in the production of the fiberglass. Tsvetnye Metally. 2012. No. 5. pp. 40–46.
11. Industry standard (OST) 11 0077–84. Platinite. Technical conditions. Official publication GR 8351807. Introduced: 28.05.1985. 22 p.
12. Loginov Yu. N., Fomin A. A. Deformation resistance of platinum alloy Pt81Pd15Rh3.5Ru0.5. Tsvetnye Metally. 2015. No. 12. pp. 80–83.
13. Konyushkov V. G., Vyazovsky V. V. Study of gas permeability of electric vacuum materials in modes of mechanical load and diffusion welding processing. Vestnik Saratovskogo gosudarstvennogo tekhnicheskogo universiteta. 2013. Vol. 2. No. 1 (70). pp. 73–80.
14. Zhao Y., Ma C., Xin D., Sun M. Dynamic mechanical properties of closed-cell aluminum foams with uniform and graded densities. Journal of Materials Research. 2020. Vol. 35, Iss. 19. pp. 2575–2586. DOI: 10.1557/jmr.2020.157
15. Sidelnikov S., Sokolov R., Voroshilov D. et al. Modeling the process of obtaining bars from aluminum alloy 01417 by combined rolling-extruding method with application of the deform-3d complex. Key Engineering Materials. 2020. Vol. 861 KEM. pp. 540–546. DOI: 10.4028/www.scientific.net/KEM.861.540
16. Sidelnikov S., Lopatin V., Dobrovenko M. et al. Study of the stress-strain state of the process of drawing wire from an alloy of palladium with nickel. Materials Science Forum. 2020. Vol. 992. pp. 504–510. DOI: 10.4028/www.scientific.net/MSF.992.504
17. Kasatkina E. G. Oxidation of special-purpose composite wire. Vestnik Magnitogorskogo gosudarstvennogo tekhnicheskogo universiteta imeni G. I. Nosova. 2005. No. 1 (9). pp. 71, 72.
18. Technical Specification 14-1-2369–78. Rods with special surface finishing (silver) made of 43N alloy. Introduced: 01.08.1978.
19. GOST 859–2014. Copper. Grades. Introduced: 01.07.2015.
20. Technical Specification 16-ZhTDI.670300.015TU–91. Glass tubes and rods for electric lamps. Introduced: 01.01.1992.
21. Kasatkina E. G., Mezin I. Y., Limarev A. S., Somova J. V. Quality evaluation of platinit wire by different producers. Solid State Phenomena. 2017. Vol. 265. pp. 259–265. DOI: 10.4028/www.scientific.net/SSP.265.259

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