Preparation process of water-resistant aluminum-based lubricating grease

The invention discloses a water-resistant aluminum-based lubricating grease preparation process which comprises the following steps: S1, mixing and melting: putting aluminum isopropoxide and one third of base oil into mixing equipment, then heating the interior to 90-100 DEG C, and stirring for 50-80 minutes by the mixing equipment in the heating process; s2, hydrolytic saponification: adding water, 1%-3% of stearic acid and 1%-3% of benzoic acid into the mixing equipment, and continuously stirring at the temperature of 100-110 DEG C for 70-100 minutes; s3, constant-temperature crystallization: adding the residual base oil, and adding an additive; and S4, processing: cooling, circulating, shearing, grinding and degassing to obtain the water-resistant aluminum-based lubricating grease. And S5, detecting and packaging. When mixing equipment is used for stirring for preparing the water-resistant aluminum-based lubricating grease, the stirring position is continuously changed, various raw materials at different p