Lubricant composition for gear

Abstract

The invention discloses a lubricant composition for gear, which is made by the following raw materials in parts by weight: 2.5-4.3 parts of vinyl chloride, 1.5-2.2 parts of nitrobenzoic acid, 15-25 parts of Turkey oil, 2.5-4.1 parts of diethanolamine borate, 1.5-2.2 parts of dodecanedioic acid and 3-6 parts of silicon dioxide. The lubricant composition for gear has excellent viscosity temperature properties and high viscosity index, so as to ensure that the lubricant still has the proper viscosity, oil film thickness and low solidifying point when the lubricant is used in the relatively wide temperature range, and the lubricant still has good fluidity at low temperature, and furthermore the lubricant is conveniently pumped or carried to a lubrication point. The safety index of use of the lubricant products is ensured, the transportation, storage and use of the lubricant products are facilitated. The ordinary gear lubricant emulsifies due to a small amount of water into the gear lubricant, so that the lubricant film is broken and invalid. When 20% of water enters into the synthetic gear lubricant provided by the invention, the gear lubricant still has good lubricity.

Description

technical field [0001] The invention relates to a lubricating oil composition for gears, which belongs to the field of industrial chemical industry. Background technique [0002] Gear oil is an important lubricating oil prepared mainly from mineral base oil or synthetic base oil, adding extreme pressure anti-wear agent and oily agent. It is used in various gear transmission devices to prevent tooth surface wear and abrasion , sintering, etc., to prolong its service life, improve the efficiency of power transmission, and reduce power loss. Gear oil should have good anti-wear, load resistance and suitable viscosity. In addition, it should also have good thermo-oxidative stability, anti-foaming properties, water separation performance and anti-rust performance. Even under high operating temperature and load, the synthetic gear oil can still ensure that the various parts of the transmission system are not worn. In industrial production, cooling water often leaks into the lubri...

AI Technical Summary

Problems solved by technology

Although improving the demulsification performance can temporarily solve the impact of water ingress on gear oil, the additives in gear oil are often gradually reduced with the separation of water

The existence of a small amount of water is still easy to cause lubrication failure, and the direct replacement of gear oil will increase the cost of the enterprise