An Investigation of the Wear Resistance of Knitting Machinery Needle

Abstract

Comparison tests of needles made in abroad and domestic on chemical composition, microstruture , mechanical property and so on, the main influence factors of the wear resistance were analysed. Approaches of improving the wear resistance of needles are given,such as hot process,surface treatment ,local strengthening. Combined with finite element analysis, the stress and the strain of the needle hook were analysed. Comparative results of both abroad and domestic show that the carbide in the microstructure and structural design of needles are regarded as the main influence factors of the wear resistance.