Open gear oil composition and preparation method thereof

Abstract

The invention provides an open gear oil composition and a preparation method thereof. The open gear oil composition is prepared from 85.5-99.56%, preferably 90.9-98.37%, more preferably 92-96% of ester synthetic oil, 0.1-8%, preferably 1-6% of anti-wear reagent at extreme pressure, 0.03-3.0%, preferably 0.1-1.5% of oil-based antiabrasive agent, 0.01-0.5%, preferably 0.03-0.1% of metal deactivator and 0.3-3.0%, preferably 0.5-1.5% of antioxygen according to the total weight of the open gear oil composition being 100%. The open gear oil composition has good antiabrasive and abrasion-resistant performance, extremely high bearing capacity and high anti-rust and water-resistant performance, further has excellent low-temperature fluidity and high-temperature adhesion and excellent shear stability, and has the wide application range, and no oil is shed when the open gear oil composition is used for a long time.

Description

technical field [0001] The invention belongs to the field of lubricating oil, and in particular relates to an open gear oil composition and a preparation method thereof. Background technique [0002] Open gear oil is mainly used to lubricate the running gears of open and semi-open gearboxes and low-speed heavy-duty gear devices. It is used in the working machinery of cement, metallurgy, mining and other industries, especially in some extra-large rotating equipment. There are a wide range of applications. Since the open (or semi-open) transmission is exposed, it is easy to be affected by dust or other external factors during work and cause wear and oil deterioration. Therefore, open gear oil requires good adhesion, adhesion Temperature characteristics, extreme pressure and anti-wear properties, etc., to ensure that the gear surface has sufficient oil film protection during the low-speed operation of the open gear. [0003] Open gear oil products are generally divided into a...

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Problems solved by technology

Patent application document CN104962360A provides a synthetic open gear oil composition, which is blended with three different synthetic ester base oils and compatible with appropriate additives. It has good thermo-oxidative stability, high and low temperature performance and extreme It has good pressure and anti-wear properties, and the viscosity can be adjusted in a wide range, basically meeting the working conditions of various open gear devices. However, because of the complex structure and cumbersome preparation of various synthetic ester oils contained in them, there is currently a lack of corresponding commercial oils in the market. products, so it is impossible to carry out industrial scale-up production

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