Research on thermoplastics under impact-abrasive wear

Abstract

The article presents the results of research into the regularities of friction processes and impact-abrasive wear of thermoplastics under cyclic and shock loads. The conditions and modes of operation of gas transportation equipment units and the reasons for the failure of the most loaded parts are analyzed in detail. The nature of the impact of the abrasive and its characteristics on the wear resistance of the working surfaces of parts of gas transportation equipment units is revealed. The choice of thermoplastic grades for the manufacture of parts of gas transportation equipment working units that operate under cyclic shock loads is justified. The designs of existing stands for the study of surface deformation and impact-abrasive wear of thermoplastics are analyzed. The design of the experimental stand is improved and a force loading mechanism is manufactured to implement the tasks set, a comprehensive research methodology is proposed. The influence of the parameters and conditions of cyclic impact loading on the wear resistance of thermoplastics under conditions of impact-abrasive wear are identified and substantiated. Practical recommendations have been developed regarding the possible use of the studied thermoplastics for the manufacture of parts for gas transportation equipment assemblies.

Keywords

• gas transportation equipment, thermoplastics, abrasive, friction, hydroabrasive wear, shock-cyclic loading, test bench