Lubricating grease special for outer ball cage of automotive universal joint and preparation method for lubricating grease
A universal joint and outer ball cage technology, applied in lubricating compositions, petroleum industry, etc., can solve problems such as inability to effectively prevent mechanical parts from seizing and sintering, inability to prevent parts wear, and small operating temperature range, etc. Achieve excellent extreme pressure wear resistance, prevent seizing and sintering, and reduce maintenance costs
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Embodiment 1
[0013] The special lubricating grease for the outer ball cage of the automobile universal joint of the present embodiment comprises the following components by weight ratio: 85% high-viscosity base oil, 4.4% lauryl hydroxystearic acid, 5% lithium hydroxide, 2% molybdenum disulfide , 3% ultrafine graphite powder and 0.6% aromatic amine antioxidant;
[0014] In this embodiment, the kinematic viscosity of the high-viscosity base oil at 40°C is between 80-300 centistokes, and the pour point is between -50-0°C;
[0015] The preparation method of the special lubricating grease for the outer spherical cage of the automobile universal joint of the present embodiment comprises the following steps: placing lauryl hydroxystearic acid and high-viscosity base oil in a weight ratio of 1 / 3 after mixing in a pressure saponification tank Inside, add lithium hydroxide with a set weight ratio and stir in the saponification tank. The rotation speed of the stirring machine is 1200 rpm, and the sap...
Embodiment 2
[0018] The special lubricating grease for the outer ball cage of the automobile universal joint of the present embodiment comprises the following components by weight: 80% high-viscosity base oil, 10% lauryl hydroxystearic acid, 2% lithium hydroxide, 3% molybdenum disulfide , 4% ultrafine graphite powder and 1% aromatic amine antioxidant;
[0019] In this embodiment, the kinematic viscosity of the high-viscosity base oil at 40°C is between 80-300 centistokes, and the pour point is between -50-0°C;
[0020] The preparation method of the special lubricating grease for the outer spherical cage of the automobile universal joint of the present embodiment comprises the following steps: placing lauryl hydroxystearic acid and high-viscosity base oil in a weight ratio of 1 / 3 after mixing in a pressure saponification tank Inside, add lithium hydroxide with a set weight ratio and stir in the saponification tank. The rotation speed of the stirring machine is 1000 rpm, and the saponificati...
Embodiment 3
[0023] The special lubricating grease for the outer ball cage of the automobile universal joint of the present embodiment comprises the following components by weight ratio: 90% high-viscosity base oil, 5% lauryl hydroxystearic acid, 2% lithium hydroxide, 1% molybdenum disulfide , 1% ultrafine graphite powder and 1% aromatic amine antioxidant;
[0024] In this embodiment, the kinematic viscosity of the high-viscosity base oil at 40°C is between 80-300 centistokes, and the pour point is between -50-0°C;
[0025] The preparation method of the special lubricating grease for the outer spherical cage of the automobile universal joint of the present embodiment comprises the following steps: placing lauryl hydroxystearic acid and high-viscosity base oil in a weight ratio of 1 / 3 after mixing in a pressure saponification tank Inside, add lithium hydroxide with a set weight ratio and stir in the saponification tank. The rotation speed of the stirring machine is 1400 rpm, and the saponif...
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