Automobile gear lubricating oil containing borate

Abstract

The invention relates to automobile gear lubricating oil containing borate. The gear lubricating oil is prepared through taking neopentyl polyol ester as base oil, adding a small amount of sulfur, nitrogen and boron-containing boride borate BNS, dialkyl pentasulfide (RC2540) and phosphide P120, and mixing uniformly. The formula is as follows: neopentyl polyol ester serves as the base oil, and the following ingredients, which account for the weight percent of neopentyl polyol ester, are added: 0.05-0.65% of BNS, 0.05-0.65% of RC2540 and 0.1-0.7% of P120. The gear lubricating oil has excellent extreme-pressure wear resistance, high bearing capacity which can reach 1,906N and the lowest wear scar value of 0.255mm, can be used for preparing vehicle gear oil and can also be applied to medium-duty industrial gear oil.

Description

technical field [0001] The invention relates to a lubricating oil, in particular to a gear lubricating oil which takes neopentyl polyol ester as base oil and adds boric acid ester. Background technique [0002] With the enhancement of human's awareness of environmental protection, lubricating oils based on mineral oil will be replaced by environmentally friendly base oils. Most traditional lubricating oils use mineral oil as the base oil. Mineral oil has problems such as poor biodegradability and poses a threat to the environment and health. Neopentyl polyol ester oil can be used as the base oil of grease, mainly to protect machine parts under harsh service conditions, especially suitable for low temperature and high temperature grease. The lubricating grease with mineral oil as base oil is generally difficult to meet the service requirements below -60°C and above 150°C, while the service temperature range of lubricating grease with polyol ester oil as base oil is generally...

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