Wear-resistant ring traveller for spinning machines - has 2-layer coating obtd. by chemical surface treatment and application of epoxy resin contg. molybdenum di:sulphide and graphite

摘要

Ring traveller (I) for spinning machines has a multilayer film structure consisting of a base layer (2) of a film produced by a chemical conversion process and a layer of epoxy resin (3) contg. MoS2 and graphite, which is applied at least to the inside surface ofthe metallic base material of (I) which is in sliding contact with a ring. Multilayer film is pref. 2.0-9.0 microns thick and has surface roughness 1.0-8.0 microns (tenpoint height) layer (2) is 1.0-2.0 microns thick and (3) is 1.0-7.0 microns thick. USE/ADVANTAGE - (I) is useful for fine spinning machines, combined spinning and twisting machines, etc. The invention provides a low-friction coating for (I) which enables stable operation for long periods at high spinning rates without undue wear on the traveller.