Degradable lubricating grease for locomotive wheel flange and preparation method

Abstract

The invention relates to degradable lubricating grease for a locomotive wheel flange, and a preparation method. The degradable lubricating grease for the locomotive wheel flange is characterized in that the degradable lubricating grease is prepared by the following raw materials by weight percent: 70%-86% of base oil, 10%-20% of thickening agent, 1%-5% of antioxygen, 1%-3% of antirust agent, 0.5%-3% of EP (extreme pressure) anti-wear reagent, 1%-4% of tackifier and 0.5%-2% of graphite. A one-step saponification method synthesis process is adopted. The dropping point of the lubricating grease is above 180 DEG C, the cone penetration is approximately 28mm, and the lubricating grease has excellent colloid stability, corrosion resistance and EP wear resistance, and is applicable to boundary lubrication of the railway locomotive wheel flange. The lubricating grease has excellent conventional physical and chemical properties and good ecological characteristics, enters a natural environment with the rotation of the wheel flange, and can be degraded into water and carbon dioxide naturally, thereby meeting environmental requirements.

Description

technical field [0001] The invention relates to a degradable lubricating grease for locomotive wheel rims and a preparation method, belonging to the technical field of lubricating materials in the chemical industry. Background technique [0002] With the development of railway transportation, the requirements for the train itself have been further increased, especially in terms of load capacity and speed. And along with the raising of speed, the increase of load, the wearing and tearing of train rim is also aggravated greatly, meanwhile, the wearing and tearing to railroad track also obviously increases. The maintenance and replacement of wheel rims have caused huge waste, and the waste of replacement of rails is even greater. Therefore, lubricating the contact surface between the locomotive wheel rim and the rail can reduce the friction coefficient and reduce friction. While lubricating grease, due to penetration, leakage, overflow and improper handling, etc., it is easy ...

AI Technical Summary

Problems solved by technology

While lubricating grease, due to penetration, leakage, overflow and improper handling, etc., it is easy to cause pollution to soil, water and air, and destroy the ecological environment and ecological balance, which has become a practical problem that cannot be ignored.

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