Calcium sulfonate complex grease

Abstract

The invention provides calcium sulfonate complex grease. The calcium sulfonate complex grease comprises the following components in percentage by weight: 26-54 percent of lubricating base oil, 18-42 percent of thickening agent, 2-8 percent of OMRC, 3-5 percent of phase inversion accelerator, 2-6 percent of glacial acetic acid, 1-3 percent of fatty acid, 2-4 percent of antioxidant, 3-7 percent of calcium hydroxide and 1-3 percent of water. The calcium sulfonate complex grease provided by the invention has the advantages of wear resistance, pressure resistance, reduced temperature and noise, prolonged service life and the like, thereby reducing the maintenance frequencies of equipment and reducing the comprehensive expenses of the equipment; and the calcium sulfonate complex grease is suitably used on bearings, gears and chains. The calcium sulfonate complex grease cannot form liquid at the temperature of 260-300DEG C and then is cooled to room temperature, and finally the calcium sulfonate complex grease restores an original lubricating grease structure and the performance of the grease is unchanged. The calcium sulfonate complex grease has favorable reversibility which is not found in other soap greases. According to the calcium sulfonate complex grease disclosed by the invention, the wear to the surface of a friction pair is reduced to the minimum extent and environment friendliness and no toxicity are ensured.

Description

technical field [0001] The invention relates to the technical field of lubricating grease, in particular to a complex calcium sulfonate lubricating grease. Background technique [0002] As early as the 1950s, a high dropping point calcium sulfonate-based grease with calcium sulfonate as a thickening agent appeared, but due to the low thickening ability of the oil-soluble calcium sulfonate used at this time, it could not be effectively obtained. promotion. In the 1970s, someone invented a method to convert Newtonian calcium sulfonate into non-Newtonian calcium sulfonate with thixotropy, and introduced the overalkalinization technology of calcium sulfonate to make a high-alkaline calcium sulfonate base grease. However, the low-temperature pumpability of this product is not good, which hinders its application and popularization. In the mid-1980s, a sulfonate complex calcium-based grease made of non-Newtonian calcium sulfonate and other fatty acid salts appeared. [0003] Th...

AI Technical Summary

Problems solved by technology

[0003] The common high dropping point lubricating greases provided by the existing technology only focus on dealing with the single problems faced by mechanical equipment, such as high temperature, high speed, high pressure or anti-wear, etc., and cannot effectively match the rapid development of modern production equipment. In spite of the requirements, in actual use, there will still be phenomena such as heating of equipment parts, serious bearing damage or even shutdown due to poor lubrication