| 摘要 |
The invention relates to lubricants used in friction assemblies: rolling-element and slide bearings, hinged bearings, threaded joints, cogged and other gears under maximum temperatures up to 200-250 DEG . The proposed middle-temperature grease based on soap-thickened oils contains an organophosphoric additive, graphite and molybdenum disulphide. As an organophosphoric additive it contains a mixture of isomers - a product of the interaction between diethyl phosphite and N-arylsulphonylquinonimine, and as soap-thickened oils - a mixture of Ca-stearate or Li-12-hydroxystearate with heavy petroleum oils (MC20 oil). The proposed grease is far superior to known greases in terms of operating characteristics: anti-wear and anti-scuff properties under severe operating conditions, as well the grease having the property of increased retention time on friction surfaces. Under conditions of high temperature, ingress of water and slag, friction assemblies, bearings in particular, with the grease applied, operate for 200 twenty-four-hour periods and more.
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