REPARATURA NAVARIVANJEM RAZLIČITIH DELOVA MAŠINSKIH SISTEMA

Abstract

In this paper are considered contemporary methods for regenerating worn or severely damaged working surfaces of various parts of machines, devices and casts. We are predominantly referring to increasingly wider application of hard-facing in deposition of wear and corrosion-resistant coatings, in reparatory jobs, as well as in additional fishing off of new casts with defects. Due to decrease of replacement costs, i.e. prolonging life span of certain vital parts and assemblies, it is of primary importance to select the adequate procedure and prescribe the optimum hard-facing technology. Manner of realizing the aforementioned is partly highlighted by results of this paper. The essence of optimization is to select procedures, filler metals, hard-facing parameters and thermal treatment, in order to obtain the best output characteristics of the hard-faced layer. The established general procedure for hard-facing steels at elevated temperatures can be applied also in reparation of parts made of different materials and with different geometrical forms.