Electric vehicle transmission fluid and preparation method thereof

• Main Authors: ZHANG BINGWU, CHEN XINGYU
• Format: Patent
• Language: Chinese; English
• Published: 18.08.2023
• Subjects: CHEMISTRY; FUELS; INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS; LUBRICANTS; LUBRICATING COMPOSITIONS; METALLURGY; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION

The invention relates to the field of lubricating oil compositions, in particular to electric vehicle transmission fluid and a preparation method thereof.The electric vehicle transmission fluid is prepared from, by weight, 91-95 parts of base oil, 2-4 parts of viscosity index improver, 3-5 parts of functional additive and 0.03-0.05 part of defoaming agent.The prepared transmission fluid has excellent wear resistance and extreme pressure performance, and the service life of the transmission fluid is prolonged. According to the lubricating oil, the wear resistance and the bearing capacity of the lubricating oil can be effectively improved, the copper corrosion resistance is excellent, the high and low temperature performance and the thermal oxidation stability are excellent, friction can be reduced, energy is saved, consumption is reduced, and meanwhile high-efficiency output under the high-temperature and low-temperature conditions is guaranteed. 本发明涉及润滑油组合物领域，具体为一种电动汽车传动液及制备方法，以重量份数计，包括：基础油91-95份、粘度指数改进剂2-4份、