Analysis of the properties of antifriction composites based on aluminum alloy's grinding waste
Journal Title: Восточно-Европейский журнал передовых технологий - Year 2018, Vol 4, Issue 12
Abstract
<p>We developed antifriction composites based on regenerated grinding waste of AM4.5Kd aluminum alloy with the addition of МоS<sub>2 </sub>solid lubricant intended for work in contact pairs of post-printing machines, such as folder-gluing machines and machines for pasting elements into packaging.</p><p>Analysis of the structure of the new composite showed that alloying elements of the metal base form strengthening phases, which are evenly distributed in the matrix without segregation clusters. This contributes to an increase in structural strength. Molybdenum disulfide provides the effect of self-lubrication of a contact pair during operation, which causes a reduction in a friction coefficient and a wear rate compared to composite material without solid oil. Structural studies showed uniform distribution of solid oil in the entire volume of the composite, which provides an increase in tribotechnical characteristics due to formation of protective anti-gripping friction films at operation of a part of a complex shape under self-lubricating conditions.</p><p>The analysis of functional properties makes possible to recommend antifriction composite made on the basis of industrial grinding waste of AM4.5Kd aluminum alloy with impurities of solid lubricant ‒ МоS<sub>2 </sub>molybdenum disulfide for parts of complex compound joints, which operate at increased discrete sliding speeds and loads without lubrication with liquid oil in the air atmosphere.</p>Tribotechnical tests showed that the new composite wear-resistant material obtained by the developed manufacturing technology gives possibility to force maximum permissible loading modes and sliding operation rates with the consistently high antifriction properties of new composite friction parts of post-printing machines
Authors and Affiliations
Tetiana Roik, Oleg Gavrish, Volodimir Oliynik, Iuliia Vitsiuk
Keywords
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- EP ID EP528134
- DOI 10.15587/1729-4061.2018.140984
- Views 69
- Downloads 0
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