РОЗРОБКА ТОНКОШАРОВИХ ПОКРИТТІВ НА ОСНОВІ ФЕНІЛОНУ ДЛЯ ЗАХИСТУ ПОВЕРХОНЬ ВІД ГАЗО- ТА ГІДРОАБРАЗИВНОГО ЗНОШУВАННЯ

Abstract

Relevance of the research topic. The task of increasing the wear resistance of parts and friction units is due to the tendency to increase their productivity and, consequently, workloads, speeds, temperatures and other parameters. Formulation of the problem. To improve the performance of friction joints, it is necessary to use materials that combine good adhesive and antifriction properties. Analysis of recent research and publications. There are a significant number of publications on materials with high antifriction properties and separately with high adhesion properties. Selection of unexplored parts of the general problem. There is no information on materials that would combine high adhesive properties and good antifriction properties as surfaces that are under gas and hydroabrasive wear. Setting objectives. The aim of this research is to investigate the combination of adhesive and antifriction properties of phenylon-based materials. Presenting main material. The adhesion ability of phenylon to classical materials of machines parts and its wear resistance at gas and hydroabrasive wear are investigated. The dependence of intensity of wearing from the angle of attack of the abrasive material is given. Conclusions in accordance to the article. It was found that, independently of the mode of operation, the greatest wear of phenylon-based coatings occurred at angles of 45°-60°, and starting from the angle of attack of 45 ° changed the mechanism of wear from microcutting to knocking out the polymer in the middle of the test sample. In both modes of operation, phenylon-based coatings were quite stable, which indicates the possibility of using phenylone as a coating to protect against gas-abrasive wear. But further research is needed, which will be closer to the real operating conditions, with the search for fillers to increase the wear resistance and adhesion of the coating based on phenylon.