CREATION OF ANTIFRICTIONAL WEAR-RESISTANT COMPOSITE MATERIALS FOR HEAVY-LOADED FRICTION UNITS OF ROLLING STOCK

There the study objects are the Composition Materials (CM) on the basis of fibre-glass fillers and epoxide binders, which were blocked by graphite. The purposes are to ascertain the theoretical and experimental mechanisms of temperature influence on the mechanical-and-physical characteristics of CM and on the tribological processes; to develop the manners to increase the wear-resistance of friction units. The interconnection between the mechanical-and-physical properties and the tribological characteristics has been ascertained. The applicability of theoretical models for the description of strength properties of CM has been analysed. The character of their dependence on the properties of initial components has been ascertained. The determination procedures of wear-resistance characteristics of CM, of temperature dependence of shear modulus, the recommendations for the choice of tendons and binder, for the development of optimum process during the creation of wear-resistant high-strength CM have been obtained; the new wear-resistant CM has been created. The estimation procedure of CM wear-resistance in the friction units, the new wear-resistant CM up to the level of service tests have been introduced. The bushes in the new CM have been used in the friction units of front suspension of trolley-buses, the service life was risen 2 timesAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio