Prospects for manufacturing electrical investigated products based on modified copper oxide (I) a novolac resin. It is shown that copper oxide modification improves the physico-mechanical, tribological, electrical properties, resistance to mechanical wear and oxidation products of the materials. Introduction of coke in the material increases its durability when operating on the worn contact network. Trial runs have shown a trolley parks that the contact insertion trolley manufactured using a modified copper oxide (I) novolak binder in performance on average 2-4 times higher than the commercial materials of different manufacturers
Keywords: trolley collector insert, carbon and graphite material, modification of the novolak binder, copper oxide (I), sea trials
This article investigated the possibility of creating a new composite material for electrical products based on natural graphite as the main component with the addition of a plasticizer . Adding plasticizer necessary to solve technological difficulties pressing process products with a high content of natural graphite . This is due to large shear between the interphase graphite flakes . As the plasticizer used polyvinylacetate . The paper presents the technological aspects of production material and study the influence of the plasticizer on the composition, both qualitative and quantitative . Conclusions about the most appropriate ratio to the amount of graphite esmestvennogo adds plasticizer.
Keywords: Еlectrotechnical products, softener for graphite, composite material, copper-graphite composition, tokosjemny material, current collecting Box, рolyvinylacetate, modification of the surface of graphite.