Analysis of tribological efficiency of movable junctions "polymericcomposite materials ‒ steel"
Journal Title: Восточно-Европейский журнал передовых технологий - Year 2019, Vol 4, Issue 12
Abstract
<p>The paper reports an analysis into tribological efficiency of mating parts "polymeric-composite materials ‒ steel" is carried out. Improperly selected materials produce significant operating costs in terms of tribology. Therefore, selecting the type of polymeric-composite materials to be used in the structures of nodes and machine parts is a task related to substantial improvement of their technical level.</p><p>The testing of samples made from polymeric-composite materials for relative abrasive resistance when mated with samples made from steel 45 has made it possible to establish that the lowest value for weight wear was demonstrated by material Nylon 66. Among the examined materials, the closest to Nylon 66 in terms of the values for relative abrasive resistance is the material PA-6-210KS that demonstrated the values that are 1.65 times less. During operation of machines, in the presence of abrasive wear, it is advisable to mate the materials "Nylon 66 – steel 45" and "PA-6-210KS – steel 45". The results from a tribotechnical study without lubrication at the friction machine SMC-2 for the mating parts "polymeric-composite material – steel 45" make it possible to establish that the least wear was demonstrated by sample made from the material UPA-6-30, that is 0.00083 g. In terms of wear resistance, the closest to it is a sample from the material PAG/6.6 R196-GF30, which is 6.1 times greater for weight wear. The sample made from steel 45 mated with a sample from the material UPA-6-30 has the lowest value of weight wear, 0.00005 g. At the same time, the lowest value for the friction coefficient is demonstrated by the mated materials "steel 45 – UPA-6-30", 0.163. The progress of the mating process is achieved fastest, after 20 minutes, when using the material UPA-6-30 at a temperature in the friction zone of 348±2 K.</p>Our research is necessary to substantiate further utilization and selection of polymeric-composite materials for mating parts working under difficult conditions. The current study is of interest to manufacturers of agricultural and quarry machinery and various transport machines.
Authors and Affiliations
Viktor Aulin, Oleksii Derkach, Dmytro Makarenko, Andrii Hrynkiv
Keywords
Related Articles
- EP ID EP667090
- DOI 10.15587/1729-4061.2019.176845
- Views 67
- Downloads 0
Defining the measures to rationally manage the sustainable development of agricultural land use
<p>The issue of socio-economic development of rural areas was explored. It was substantiated that the state policy should be aimed at mobilizing labor, financial, material and organizational resources, strengthening the...
Universal multifunctional device for heat and mass exchange processes during organic raw material processing
<p>The proposed innovative design solution of universal multifunctional device ensures implementation of the maximum number of heat exchange processes. They are: aging, drying, blanching, boiling, boiling soft, infusion,...
Development of a method for geometrical modeling of the airfoil profile of an axial turbomachine blade
<p>A method for geometric modeling of the contours of the suction and the pressure side profiles of axial turbomachine blades described by compound curves and formed by two sections has been proposed. Each section of the...
Development of geomodel for concentration determination of hazardous chemicals in the atmosphere
A critical analysis of the approaches to the development of a model for determining the concentration of hazardous chemicals (HC) in the atmosphere, which are the basis of computeraided environmental monitoring systems...
Welding method for high crack sensitivity of Q&T steel
<p>Components for combat vehicles need (such as body panzers, main battle tank, armored personnel carrier) to be made of high strength and hardness steel. However, during and after the welding process is complete, this s...