Author: A.A. Solovyev
Abstract
The article discusses the research of adhesive strength of composites based on polyamide matrix. Possible options for controlling the adhesion of the composite on the steel and the formation of an antifriction layer have been considered. The article structurally consists of three parts. In the first part, methods for determining adhesive strength have been considered. The method of testing has been substantiated and theoretical justifications for the applicability of the thermal fluctuation theory of the strength of adhesion of the composite to a metal substrate have been given, making it possible to predict the durability of the adhesive joint. In the second part, the technology of preparing the metal polymer charge for melting has been considered and the classification of methods for processing the composite into products has been given, depending on the size of the filler particles. The third part of the article is devoted to testing the adhesive strength of polyamides of various brands serving as the basis for the creation of composites. The influence of aggressive media and operational factors of the change in adhesive strength have been studied. The study of adhesive strength shows that the optimal preheating temperature of the part depends on the type of polymer. In practice, it depends on the metal content of the polymer-coated product. Finally, the technology shall be selected for each specific part, with the obligatory condition of applying the polymer at an optimal temperature.
Keywords: metal polymer, adhesion, adhesive strength, durability, sliding bearings, mechanical processing, powder materials, antifriction coatings.
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About author:
A.A. Solovyev, St. Petersburg State Marine Technical University, St. Petersburg
Issue: 68/69 (2022)
For citation: A.A. Solovyev. Research and control of adhesive strength of antifriction coatings made of composites based on polyamide matrix. Research Bulletin by Russian Maritime Register of Shipping. 2022, No. 68/69, pp. 114-121.
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