Lubricating grease specially used in high-temperature kiln car, and preparation method thereof

Abstract

The invention discloses a lubricating grease specially used in a high-temperature kiln car, and a preparation method thereof. The grease comprises the raw materials of, by weight: 40-60 parts of base oil A, 30-50 parts of base oil B, 4-8 parts of octadecylamine, 3-5 parts of ethylene diamine, 3-6 parts of MDI (diphenylmethane-4,4'-diisocyanate), 1-2 parts of an antioxidant A, 2-3 parts of an antioxidant B, 2-3 parts of a rust inhibitor, 1-2 parts of an extreme-pressure anti-wear agent A, 1.5-3 parts of an extreme pressure anti-wear agent B, and 5-10 parts of a tackifier. During preparation, the raw materials are stirred and mixed according to different temperatures and a certain order, and are treated according to a related process requirement. The lubricating grease provided by the invention has good high-temperature resistance, good colloidal stability, good oxidation stability, good water resistance, good pumpability, low coking tendency, and low ash. During application, coking is prevented under high temperature, and cleaning is not needed. The lubricating grease is directly added. The preparation method is simple and easy to operate. Product application effect is good.

Description

technical field [0001] The invention relates to the field of lubricating grease, in particular to a lubricating grease specially used for high-temperature kiln cars and a preparation method thereof. Background technique [0002] The production environment of high temperature kiln car is characterized by continuous, high temperature, high humidity, heavy load and dusty load, high load capacity and high ambient temperature inside the kiln. The kiln car and the refractory billet must be operated at the same temperature of 200-250 ℃ for a long time. Under high temperature and heavy load conditions, the commonly used molybdenum disulfide lithium base grease, extreme pressure lithium complex, organic bentonite grease, etc. will appear carbonization and coking in a long-term high temperature environment, and the added molybdenum disulfide lubricant is mostly Burnt and brittle, almost lost its lubrication. As a result, the bearing loses its effectiveness and the wheel locks up. Ev...

AI Technical Summary

Problems solved by technology

Under high temperature and heavy load conditions, the commonly used molybdenum disulfide lithium base grease, extreme pressure lithium complex, organic bentonite grease, etc. will appear carbonization and coking in a long-term high temperature environment, and the added molybdenum disulfide lubricant is mostly Burnt and brittle, almost lost its lubrication

As a result, the bearing loses its effectiveness and the wheel locks up.

It is necessary to clean all the bearings and renew the lubricant every time a car is released, which will inevitably consume a lot of time and manpower. Frequent maintenance will greatly increase the production cost of the enterprise, reduce efficiency, and increase labor intensity.

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