| abstract |
The invention relates to a biodegradable fire-resistant hydraulic oil and a preparation method thereof. The fire-resistant hydraulic oil includes synthetic ester base oil and functional additives, and the functional additives include extreme pressure antiwear agents, oily agents, anti Oxygen agent, viscosity modifier, copper corrosion inhibitor and ferrous metal corrosion inhibitor; 100 parts by weight of the synthetic ester base oil; 6.54-21.08 parts of the functional additive. In the present invention, the synthetic ester base oil is compatible with extreme pressure antiwear agent, oily agent, antioxidant, viscosity regulator, copper corrosion inhibitor and ferrous metal corrosion inhibitor, and the obtained fire-resistant hydraulic oil has a high biodegradation rate, Good lubrication performance, outstanding flame resistance, good oxidation stability, safe use, long life, especially suitable for hydraulic systems working in various high-temperature environments in the metallurgical industry and machinery manufacturing industry, and also suitable for various outdoor engineering machinery . |