Wear-resisting protective factice for rail wheeltrack

Abstract

The invention provides wear-resisting protective factice for a rail wheeltrack, comprising the following raw materials in parts by weight: 50-68 parts of mineral oil, 4-16 parts of stearic acid, 2-16 parts of molybdenum disulfide, 5-15 parts of graphite, 2-11 parts of dicyandiamide polymer, 1-5 parts of polytetrafluoroethylene, 1-5 parts of boron nitride, 0.5-5 parts of rare earth fluoride, 1-3 parts of antimony trioxide, 2-8 parts of epoxy resin and 1-4 parts of magnesium oxide. In the invention, due to the addition of the magnesium oxide, the wear resistance of the factice is improved by 700min, and the wear-resisting protective factice has a remarkable practical value.

Description

technical field [0001] The invention belongs to the technical field of lubricants, and in particular relates to a wear-resistant protective ointment for railway wheel rails. Background technique [0002] At present, there are roughly two types of wheel-rail lubricants used at home and abroad, one is lubricating oil, and the other is grease. Due to the harsh working conditions of the wheel and rail, in addition to the interaction between the wheel and rail, it is also affected climate impact. Although the grease lubricant partially improves the wear of the wheel and rail, it is difficult for the grease lubricant to form a good lubricating oil film under the load of up to several tons per square centimeter and rigid impact, polarization, torsional vibration, sliding, etc., even if formed The oil film, too, is quickly destroyed by the interaction between the wheel and the rail. In summer, sunlight will cause the grease remaining on the rails to lose quickly. At the same time,...

AI Technical Summary

Problems solved by technology

Although the grease lubricant partially improves the wear of the wheel and rail, it is difficult for the grease lubricant to form a good lubricating oil film under the load of up to several tons per square centimeter and rigid impact, polarization, torsional vibration, sliding, etc., even if formed The oil film is also quickly destroyed by the interaction between the wheel and the rail

In summer, sunlight will cause the grease remaining on the rails to quickly lose. At the same time, thin oil is easy to adhere to sand particles, resulting in abrasive wear, which accelerates the wear of the wheel and rail. Moreover, the bearing capacity of grease lubricants is also low. No more than 3920N. For this reason, the solution is often to increase the number of times of oiling, which not only increases the labor intensity, but also increases the cost, so it is necessary to improve

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