High-temperature lithium-based lubricating grease and preparation method thereof

Abstract

The invention relates to high-temperature lithium-based lubricating grease. The high-temperature lithium-based lubricating grease is prepared from the following raw materials in parts by weight: 80 to100 parts of mineral base oil, 3 to 5 parts of lithium stearate, 7 to 15 parts of lithium 12-hydroxystearate, 0.5 to 2 parts of an extreme pressure anti-wear additive, 1 to 3 parts of a solid additive, 0.2 to 0.8 part of an antioxidant, 0.1 to 0.5 part of an anti-rust agent, 0.1 to 0.5 part of an anti-corrosion agent, 0.2 to 0.8 part of an oily agent, 0.2 to 0.8 part of a flame retardant and 1 to2 parts of a stabilizer. The lithium-based lubricating grease provided by the invention has excellent comprehensive performance; the stabilizer is added so that the structure stability of the lubricating grease is improved, and properties including the colloid stability, the mechanical stability, the water resistance and the like of the lubricating grease are greatly improved; the extreme pressure anti-wear additive and the solid additive, which have a mutual synergistic effect, are added so that the lubricating grease has relatively good friction reduction performance and anti-wear performance and relatively good stability; the energy consumption of equipment in an operation process and abrasion on the equipment are easy to reduce and the service life of the equipment is prolonged. Meanwhile, the high-temperature lithium-based lubricating grease has good anti-oxidization performance and anti-rust and anti-corrosion performance.

Description

technical field [0001] The invention belongs to the field of lubricants, in particular to a high-performance lithium-based lubricating grease and a preparation method thereof. Background technique [0002] Grease is a lubricating material between liquid and solid, and its output accounts for far less than lubricating oil in the entire lubricating product. However, the lubricating performance of grease is better than that of lubricating oil. At normal temperature, it can be adsorbed on the metal surface without flowing; when heated or mechanically affected, the grease becomes thinner and can lubricate the friction surface like a liquid. When heated When the action and mechanical action gradually diminish to disappear, the grease returns to its state. Because of this particularity, lubricating grease has been widely used in the fields of industry, agriculture, transportation, defense industry, etc., and has become one of the most promising lubricating materials. [0003] Lit...

AI Technical Summary

Problems solved by technology

At present, there are many kinds of lithium-based grease formulas on the market, each with its own strengths and weaknesses, but there are very few products that can take into account all aspects of performance. The main reason is that the formula is unqualified. Therefore, a scientific and reasonable formula is urgently needed in the market Production of high-performance lithium-based greases

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