scholarly journals An Application of Antifriction Coatings to Increase the Lifetime of Friction Units

2021 ◽  
Vol 346 ◽  
pp. 03024
Author(s):  
Aleksandr V. Antsupov ◽  
Artem A. Fedulov ◽  
Alexey V. Antsupov ◽  
Victor P. Antsupov
Keyword(s):  
Thin Films ◽  
Sliding Friction ◽  
Experimental Studies ◽  
Rolling Friction ◽  
Polymer Coatings ◽  
Flexible Tool ◽  
Friction Units ◽  
Antifriction Coatings ◽  
Friction Surfaces ◽  
Metal Polymer

This article presents a generalization of the results of theoretical and experimental studies on increasing the reliability of friction units by making antifriction coatings on the working surfaces with a flexible tool. The principle scheme and the essence of the method of cladding with a flexible tool (CFT) - shock-frictional forming of thin films from various materials on the surface of the workpiece with flexible elements of rotating metal brushes are described. Versions of cladding machinery and many parts of movable joints with various forms of friction surfaces, on which various metal, polymer, single and two-layer antifriction coatings are applied, are presented. The modification of the frictional application of polymer coatings is shown. The following is a brief description of the most significant effective results for increasing the durability of the industrial sliding friction and rolling friction units.

Formation of MAO-coatings of high thickness on titanium alloys and evaluation of tribological properties in friction pair with bronze

2021 ◽  
pp. 41-51
Author(s):  
V. G. Ivanov ◽  
V. S. Bublikov
Keyword(s):  
Experimental Data ◽  
Titanium Alloys ◽  
Tribological Properties ◽  
Sliding Friction ◽  
Friction Pair ◽  
Microarc Oxidation ◽  
Tribological Characteristics ◽  
Friction Units ◽  
Antifriction Coatings ◽  
Oxidation Parameters

The article presents experimental data on the effect of microarc oxidation parameters on the thickness and structure of the MAO-coating and its tribological characteristics in friction against bronze. The appli- cation of thick antifriction coatings by the MAO-method on titanium alloys has been developed. The possibility of using MAO-coatings of high thickness in sliding friction units was investigated.

ОБРАЗОВАНИЕ МОДИФИЦИРОВАННЫХ ПОВЕРХНОСТЕЙ ТРЕНИЯ

2021 ◽  
Vol 74 (3) ◽  
pp. 17-23
Author(s):  
A.Yu. RODICHEV ◽  
◽  
A.N. NOVIKOV ◽  
A.V. GORIN ◽  
M.A. TOKMAKOVA ◽  
...  
Keyword(s):  
Thin Film ◽  
Experimental Studies ◽  
Film Coating ◽  
Qualitative And Quantitative Analysis ◽  
Film Coatings ◽  
Thin Film Coatings ◽  
Antifriction Coatings ◽  
Functional Scheme ◽  
Series Of Experiments ◽  
Friction Surfaces

The article provides information on the formation of modified friction surfaces. The results of the analysis of the applied antifriction film coatings are presented. One of the main problems of applying thin film coatings is the lack of technological modes recommended by the manufacturer. The composition of the film antifriction coating is described. The results of experimental studies of the application of thin film coatings are presented. A pneumatic spray gun for applying thin film coatings was selected. A series of experiments were carried out to identify the technological modes of applying thin film coatings. A qualitative and quantitative analysis of the results of applying thin film coatings was performed. A functional scheme for applying an anti-friction film coating is proposed. Based on the conclusions made, recommendations are given on the technological modes of applying thin film antifriction coatings to the modified friction surface.

scholarly journals Creation of modified friction surfaces

2021 ◽  
Vol 341 ◽  
pp. 00016
Author(s):  
Andrei Gorin ◽  
Alexandr Novikov ◽  
Svetlana Karpeeva ◽  
Мaria Tokmakovа
Keyword(s):  
Thin Film ◽  
Experimental Studies ◽  
Film Coating ◽  
Qualitative And Quantitative Analysis ◽  
Thin Film Coating ◽  
Film Coatings ◽  
Thin Film Coatings ◽  
Antifriction Coatings ◽  
Series Of Experiments ◽  
Friction Surfaces

The article provides information on the creation of modified friction surfaces. The results of the analysis of the applied antifriction film coatings are presented. One of the main problems in the application of thin film coatings is the lack of technological modes recommended by the manufacturer. The composition of the film anti-friction coating is described. The results of experimental studies of the deposition of thin film coatings are presented. Selected pneumatic spray gun for depositing of thin film coating. A series of experiments were carried out to identify the technological modes of applying thin film coatings. A qualitative and quantitative analysis of the results of applying thin film coatings has been carried out. A functional diagram of the application of an antifriction film coating is proposed. On the basis of the conclusions made, recommendations are given on the technological modes of applying thin film antifriction coatings on the modified friction surface.

Tribotechnical characteristics of hard alloys in sliding friction units

2020 ◽  
pp. 87-97
Author(s):  
K. D. Khromushkin ◽  
B. G. Ushakov ◽  
A. V. Kochergin ◽  
R. A. Suleev ◽  
O. N. Parmenova
Keyword(s):  
Experimental Data ◽  
Sliding Friction ◽  
Heating Temperature ◽  
Hard Alloys ◽  
Friction Units ◽  
Wear And Friction ◽  
Friction Path ◽  
Friction Parameters ◽  
Tribotechnical Characteristics ◽  
Temperature Surface

The paper presents experimental data on the study of the friction parameters of hard alloys in sliding friction units, including the heating temperature, surface roughness, wear and friction coefficient, depending on the duration of the test and the friction path.

Experimental studies and new theoretical modeling on the properties of In2S3 thin films

2021 ◽  
Vol 118 ◽  
pp. 111238
Author(s):  
A. Timoumi ◽  
W. Belhadj ◽  
S.N. Alamri ◽  
M.K. Al Turkestani
Keyword(s):  
Thin Films ◽  
Experimental Studies ◽  
Theoretical Modeling

The Brake Device Design for Children Two-Wheel Dynamic Scooter

2011 ◽  
Vol 421 ◽  
pp. 724-727
Author(s):  
Xue Feng Yi ◽  
Li Jun He
Keyword(s):  
Sliding Friction ◽  
Rolling Friction ◽  
Safety Performance ◽  
Device Design ◽  
Emergency Braking ◽  
Design For Children ◽  
Brake Device

Children scooter safety performance is not good enough in the market, the cause of the majority of injuries to children is difficult to control the speed or emergency braking. According to the phenomenon, this paper focuses on designing dynamic scooter brake device for 8-10 child, we conceive that the brake device is given the force of the rolling friction and the sliding friction, so it can play a dual brake effect. It will enhance the security and stability of children dynamic scooter.

Studies of the Flame Spraying of Polymers

1996 ◽  
Author(s):  
D.J. Varacalle ◽  
K.W. Couch ◽  
V.S. Budinger
Keyword(s):  
Bond Strength ◽  
Combustion Process ◽  
Experimental Studies ◽  
Polymer Coatings ◽  
Flame Spraying ◽  
Knoop Microhardness ◽  
Resultant Coating ◽  
Strength Characterization ◽  
Thermally Sprayed

Abstract Experimental studies of the subsonic combustion process have been conducted in order to determine the quality and economics of polyester, epoxy, urethane, and hybrid polyester-epoxy coatings. Thermally sprayed polymer coatings are of interest to several industries for anti-corrosion applications, including the infrastructural, chemical, automotive, and aircraft industries. Classical experiments were conducted, from which a substantial range of thermal processing conditions and their effect on the resultant coating were obtained. The coatings were characterized and evaluated by a number of techniques, including Knoop microhardness tests, optical metallography, image analysis, and bond strength. Characterization of the coatings yielded thickness, bond strength, hardness, and porosity.

scholarly journals Bioinspired metal–polymer thin films with varying hydrophobic properties

2017 ◽  
Vol 15 (1) ◽  
pp. 87-94 ◽  
Author(s):  
J. Rao ◽  
S. S. Anjum ◽  
M. Craig ◽  
J. R. Nicholls
Keyword(s):  
Thin Films ◽  
Polymer Thin Films ◽  
Hydrophobic Properties ◽  
Metal Polymer

Reactive Phase Formation in Thin Films: Evolution of Grain Structure

1995 ◽  
Vol 403 ◽  
Author(s):  
K. Barmak ◽  
C. Michaelsent ◽  
J. Rickman ◽  
M. Dahmstt
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Phase Formation ◽  
Experimental Studies ◽  
Grain Structure ◽  
Structure Evolution ◽  
Future Research ◽  
Polycrystalline Materials ◽  
Product Phase ◽  
Nucleation Kinetics

AbstractIt is a well known fact that the properties and performance of polycrystalline materials, including polycrystalline thin films, are strongly affected by the grain structure. Therefore, in treating reactive phase formation in these films, it is (or it will inevitably be) necessary to quantify the grain structure of reactant and product phases and its evolution during the course of the reaction. Theoretical models and the conventional view of thin film reactions, however, have been largely extensions, to small and finite dimensions, of theories and descriptions developed for bulk diffusion couples. These models and descriptions primarily focus on the growth stage and to a much lesser extent on the nucleation stage. Consequently, these models and descriptions are not able to treat the development of product phase grain structure. Recent calorimetric investigations of several thin film systems demonstrate the importance of nucleation kinetics (and hence nucleation barriers) in product phase formation and provide quantitative measures of the thermodynamics and kinetics of formation of the product phases, thereby allowing some degree of comparison with reaction models. Furthermore, microstructural investigations of thin-film reactions demonstrate the non-planarity of the growth front and highlight the role of reactant-phase grain boundaries. In this paper, a summary of these experimental studies and recent theoretical treatments, which combine nucleation and growth in an integrated manner, is presented, with particular emphasis on the Nb/Al system. These experiments and models lead to a new view of reactive phase formation and grain structure evolution as one in which the latter is an integral part of the former. Based on this view, directions for future research are discussed.

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