Volodymyr Dudnyk

Poltava State Agrarian Academy · Engineering and Technology

The paper addresses the issues of increasing the durability of piston pins of automotive and tractor engines through the use of vibration oscillations during their restoration. Experimentally found the optimal values of the angle of inclination of the machined tool – punch and its effect on the amount of metal sticking to the working surface of the...

We have studied technological processes related to the restoration of worn-out parts of agricultural machinery (plowshares, cultivator sweeps) that operate under conditions of intensive abrasive wear. We have determined the influence of operating parameters of the technological process on the quality of the restored surface of the cutting elements...

The object of research is the technological process of improving the reliability of the recovery of ploughshare disks of grain seeders by vibration hardening. One of the most problematic places is the lack of knowledge of this process in the restoration of agricultural machinery. For the emergence of a deeper understanding of the process of vibrati...

Приведені результати досліджень умов роботи деталей машин, виявлені причини зниження їх ресурсу, поданий аналіз методів відновлення їх працездатності. Запропонований технологічний процес підвищення їх довговічності використанням більш ефективного методу відновлення електроконтактним приварюванням. Знайдені значення основних параметрів запропоновано...

The modification of ethylene-propylene-diene elastomers via the addition of fragments of an accelerating agent or chlorine atoms to improve their compatibility with butadiene-nitrile rubbers and to reduce the rate of ozone degradation of the polydiene matrix is efficient only in the case of low stereoregularity of propylene units in the ethylene-pr...