Increase in the Reliability and Durability of Metal Impulse Seals. Part 2*

Tarelnyk, Viacheslav; Марцинковский, В. С.; Zhukov, A. N.

doi:10.1007/s10556-017-0333-7

Cited by 32 publications

(5 citation statements)

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“…Відповідно до [66][67][68][69], залежно від конкретних умов леґування, застосовують додаткові технологічні прийоми. Наприклад, при леґуванні матеріялами, які «залипають» при зіткненні аноди з поверхнею, яку піддають леґуванню, що порушує частоту проходження імпульсів і збільшує нерівність поверхні, рекомендується попереднє короткочасне леґування поверхні іншим матеріялом на режимах з малою енергією імпульсів (так званих м'яких режимах) для утворення своєрідного перехідного тонкого шару.…”

Section: аналіза останніх досліджень і публікаційunclassified

Untitled

2022

Metallofiz. Noveishie Tekhnol.

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Manuscripts may also be submitted to a member of the Editorial Advisory Board or to the appropriate Regional Editor who is familiar with the research presented. Submission of a paper to 'Metallophysics and Advanced Technologies' (transliteration: 'Metallofizika i Noveishie Tekhnologii ', i.e., 'MfNT') will be taken to imply that it represents original work not previously published, that it is not being considered for publication elsewhere, and that, if accepted for publication, it will not be republished without the consent of the Editors and Publisher. It is a condition of acceptance by the Editor of a manuscript for publication that the Publishers acquire automatically the copyright in the manuscript throughout the world. Journal 'MfNT' supports the generally accepted principles described in documents on publication ethics and unacceptable practices, which are presented on the journal website.

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Section: аналіза останніх досліджень і публікаційunclassified

Untitled

2022

Metallofiz. Noveishie Tekhnol.

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“…This occurs when the space size between the cameras is commensurate with the circumferential cameras length. However, as shown by recent experimental studies [2,4,5,16], the efficiency and the seal reliability can be significantly increased by changing the number of chambers and feeders, i.e. by changing the inter-chamber spaces [28,30,31,32].…”

Section: Literature Reviewmentioning

confidence: 99%

“…Here W(x) is taken in region separate points. The derivative ∂P/∂x is easily determined by the equation: (16) or using finite difference formulas (∂P/∂x)i = (Pi-1+Pi+1)/∆. Here Pi-1 and Pi+1 is the pressure values at the points xi-1 and xi+1 in the vicinity of the point xi (Pa); ∆ -is the distance between the points xi-1 and xi+1 (m).…”

Section: Fig 3 Splitting a Region Boundary And The Region Itself Intmentioning

confidence: 99%

Gas Flow Simulation in the Working Gap of Impulse Gas-Barrier Face Seal

Kuznetsov

Nahornyi

Krenický

2020

Management Systems in Production Engineering

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Numerical simulation method of the working process of a centrifugal unit contactless face impulse seal is proposed. A seal functioning physical model was created. Its operation key aspects that are not taken into account in the traditional methods of calculating contactless impulse seals are identified. A numerical simulation of seal working process based on the Reynolds equation solution for the medium vortex-free motion in the gap between moving surfaces is proposed. Hypothesis that simplify the equation’s numerical solution for the face impulse seal is formulated. The numerical solution is obtained using the boundary element method. Based on the obtained numerical solution, the distribution of the working medium pressure field in the seal gap is simulated.

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“…Research engineers began to pay more attention to developing composite materials, consisting of a hard but not brittle substrate and a wear-resistant surface layer [3][4][5]. In this regard, more and more research has been devoted to the improvement of the known hardening processes [6,7], and to the development of new technologies [8][9][10]. Those would be capable of controlling the quality parameters of the surface layers of the parts and in this way, expand the range of design solutions for projecting and manufacturing friction units of new machines and mechanisms.…”

Section: Introductionmentioning

confidence: 99%

The Formation of C-S Coatings by Electrospark Alloying with the Use Special Process Media

Haponova,

Tarelnyk,

Tarelnyk

et al. 2024

SSP

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The paper presents an analysis of technologies for improving the quality parameters of the surface layers of parts, which were carried out by the method of electrospark alloying (ESA) and by additional saturation of surfaces with alloying elements from special process media (STM). The technology of sulfocementation was considered. Metallographic and hardness tests after sulfocementation by ESA showed that the treated surface consists of layers: "soft", hardened and base metal. As the discharge energy increases, the thickness, microhardness and integrity of the coating increase. The presence of sulfur in STM promotes the sulfidation process. It is shown that sulfur accumulates on the surface of the metal at a depth of up to 30 μm. This zone is characterized by reduced microhardness. A strengthened layer is formed under this layer, it has an increased carbon content and high microhardness.

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Increase in the Reliability and Durability of Metal Impulse Seals. Part 2*

Cited by 32 publications

References 0 publications

Untitled

Untitled

Gas Flow Simulation in the Working Gap of Impulse Gas-Barrier Face Seal

The Formation of C-S Coatings by Electrospark Alloying with the Use Special Process Media

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