Abstract
The relevance of the work is to develop a technology for the production of polymer-coated wire. This caused the need to study the stress-strain state in the process of drawing, as well as the need to consider modern polymer coatings and the modes of their application to the base material. The purpose of this study is to determine the mechanical characteristics of real polymer films, as well as to determine the rheological model of the polymer deformation process for the use of the developed mathematical model in determining the stress-strain state in the drawing process of metal-polymer systems. Polytetrafluoroethylene was chosen as the polymer coating material. The main research method was mathematical modeling of the steel-polymer composition drawing process, which was carried out in the SIMULIA Abaqus software package. The novelty of the study lies in the fact that the conducted studies of the wire stress state and the assessment of the cohesive stability of the coating allowed us to improve the basic drawing technologies. The results of changes in the thickness of the coating in the process of drawing, the mechanism of deformation of polytetrafuoroethylene allow us to conclude that it is impractical to use this technology for wire of large diameters. Also, based on the results of the study, to obtain a wire with an increased level of anticorrosive properties it is recommended to apply a polymer coating before the last transition of the route and then drag it to the final size.
Keywords
The process of drawing, wire, coating, polymer-coating materials, polytetrafluoroethylene coating, stress strain state scheme.
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