二硫化モリブデン分散油を含有する銅錫合金焼結含油軸受材料の摩擦

概要

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Sliding friction behaviors of Cu-10% Sn alloy sintered materials with mineral oil-dispersing fine MoS_2 powders are studied in combination with flat steels at a speed of 0.16 m/s, in an atmospheric pressure at room temperature. The main results obtained are as follows : (1) For sintered materials attempting to penetrate MoS_2 powders with over 0.7μm grain sizes dispersed in mineral oil, the friction coefficient and specific wear rate are close to those of sintered materials containing only mineral oil. (2) For sintered materials containing mineral oil with the dispersion of ultrafine MoS_2 powders having less than 0.3μm average grain sizes, the friction coefficient is less than 0.1 ; moreover, the specific wear rate is also about two orders of magnitude lower than that of sintered materials containing only mineral oil. WS_2 powders with 0.1μm average grain size also has the same excellent behavior.
1990-05-25