2results about How to "Drop point high" patented technology

The present application relates to the technical field of lubricating grease, and particularly relates to a steel wire rope lubricating grease and a preparation method thereof. The steel wire rope lubricating grease comprises the following components in percentage by weight: base oil 40-70%, petroleum-based wax or synthetic wax 5-25%, tackifier 5-30%, sepiolite 3-15%, antirust agent 0.5-5%, antioxidant 0.5-5%, and anti-wear agent 0.5-5%; the base oil is selected from one or more of naphthenic base oil, poly-alpha olefin, extracted oil and asphalt. The lubricating grease provided by the present application can improve the dropping point and high-temperature performance of the product, solve the problems of high-temperature oil dripping and low-temperature brittle cracking of the existing product, has a wide use temperature range, and has excellent adhesion, high-low temperature performance, rust resistance and anti-wear performance, and can meet the requirements of lubricating performance and service life of the steel wire rope under harsh conditions such as high temperature and low temperature.

The invention provides a calcite type flaky calcium carbonate grease and a preparation method thereof, and the method is as follows: 20-40 parts of high-alkaline calcium sulfonate, 10-30 parts of an organic solvent and 2-10 parts of distilled water are stirred uniformly at 20-50 DEG C. Then 2-8 parts of a morphology control agent is added, CO2 gas is introduced, and the reaction is carried out for 1-3 hours. Then solid-liquid separation, washing and drying are carried out to obtain a calcium carbonate thickening agent; 20-60 parts of calcium carbonate thickening agent powder, 40-80 parts of base oil are uniformly mixed, and stirring thickening reaction is carried out at 160+ / -10 DEG C for 30-90 minutes, then the temperature is continuously kept at 200+ / -20 DEG C for 10-20 minutes, and after cooling, grinding is carried out, and the calcium carbonate grease is obtained. The method has low cost, simple raw materials and preparation process, stable production batch, and can effectively solve the problems of unstable grease batch, complex preparation process and the like. The calcium carbonate grease prepared by the method has outstanding high-temperature tribological properties, the drop point is higher than 385 DEG C, the shear stability and extreme pressure performance are excellent, and the lubrication requirements under harsh working conditions such as high temperature and high load can be met.