Sporirea durabilităţii melcului maşinii de brichetat prin formarea straturilor rezistente la uzură

Abstract

The paper relates to a process for the hardening of metal surfaces by applying electrospark alloying. The essence of the process consists in formation wear-resistant bi-stratum coatings (tungsten-graphite) on the active surface of the auger of the briquetting machine. The technical result consists in increasing the durability of the auger by 25%, which constitutes 1 ton of extra briquettes at a technological cycle. In addition, the aim of the second processing using graphite tool-electrode is not only the formation of tungsten carbide which possesses high anti-wear properties, but also the increase of the active surface quality.