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Lubricating grease for car flexible axles

A technology for automotive flexible shafts and lubricating grease, applied in the field of lubricating grease, which can solve the problems of unfavorable heat dissipation and lowering temperature of flexible shafts, deterioration of lubrication conditions, and lower viscosity of lubricating grease, etc., achieve excellent water resistance and corrosion resistance, and ensure lubricating effect , The effect of small friction coefficient

Inactive Publication Date: 2014-12-24
WUXI FEITIAN GREASE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the harsh environment of the flexible shaft, such as a high temperature environment, the viscosity of the grease will decrease, resulting in deterioration of the lubrication conditions, and the heat will be directly transferred to the flexible shaft, which is quite unfavorable for the heat dissipation and temperature reduction of the flexible shaft.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Equipped with 100kg of automotive flexible shaft grease of the present invention, which is formulated from the following components:

[0027] Diester synthetic base oil 60kg, lithium hydroxide solution 8kg, benzoic acid 4kg, stearic acid 3kg, aluminum isopropoxide 7kg, aluminum isopropoxide trimer 8kg, urea-based thickener 5kg, antioxidant 0.8kg , Anticorrosion agent 0.5kg, extreme pressure antiwear agent 0.2kg, dodecanoic acid 3.5kg. The mass percent concentration of lithium hydroxide in the lithium hydroxide solution is 55%. The antioxidant is bis(3,5-tertiary butyl-4-hydroxyphenyl) sulfide. The anticorrosion agent is mercaptobenzothiazole. The extreme pressure antiwear agent is tricresyl phosphate.

[0028] Equipped with 100kg of automotive flexible shaft grease of the present invention, it is realized by the following preparation process: comprising the following steps:

[0029] a. Add 48kg of diester synthetic base oil into reaction kettle A, stir and heat up t...

Embodiment 2

[0038] Equipped with 100kg of automotive flexible shaft grease of the present invention, which is formulated from the following components:

[0039] Diester synthetic base oil 58kg, lithium hydroxide solution 5kg, benzoic acid 4kg, stearic acid 4kg, aluminum isopropoxide 5kg, aluminum isopropoxide trimer 12kg, urea-based thickener 3kg, antioxidant 0.5kg , Anti-corrosion agent 0.2kg, extreme pressure anti-wear agent 0.3kg, dodecanoic acid 8kg. The mass percent concentration of lithium hydroxide in the lithium hydroxide solution is 55%. The antioxidant is bis(3,5-tertiary butyl-4-hydroxyphenyl) sulfide. The anticorrosion agent is mercaptobenzothiazole. The extreme pressure antiwear agent is tributyl phosphate.

[0040] Equipped with 100kg of automotive flexible shaft grease of the present invention, it is realized by the following preparation process: comprising the following steps:

[0041] a. Add 43.5kg of diester synthetic base oil into reactor A, stir and heat up to 110°...

Embodiment 3

[0050] Equipped with 100kg of automotive flexible shaft grease of the present invention, which is formulated from the following components:

[0051] Diester synthetic base oil 67kg, lithium hydroxide solution 5kg, benzoic acid 6kg, stearic acid 3kg, aluminum isopropoxide 6kg, aluminum isopropoxide trimer 6kg, urea-based thickener 3kg, antioxidant 0.5kg , Anticorrosion agent 0.2kg, extreme pressure antiwear agent 0.3kg, dodecanoic acid 3kg. The mass percent concentration of lithium hydroxide in the lithium hydroxide solution is 60. The antioxidant is bis(3,5-tertiary butyl-4-hydroxyphenyl) sulfide. The anticorrosion agent is mercaptobenzothiazole. The extreme pressure antiwear agent is triethyl phosphate.

[0052] Equipped with 100kg of automotive flexible shaft grease of the present invention, it is realized by the following preparation process: comprising the following steps:

[0053] a. Add 50.25kg of diester synthetic base oil into reaction kettle A, stir and raise the ...

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PUM

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Abstract

The invention relates to the technical field of lubricating grease and particularly relates to lubricating grease for car flexible axles and a preparation process thereof. The lubricating grease for car flexible axles consists of the following components in percentage by weight: 58-70% of diester synthetic base oil, 5-13% of a lithium hydroxide solution, 4-8% of benzoic acid, 3-6% of stearic acid, 5-15% of aluminum isopropoxide, 6-13% of aluminum isopropoxide tripolymer, 3-8% of a carbamido thickening agent, 0.5-1% of an antioxidant, 0.2-0.7% of a corrosion inhibitor, 0.2-0.5% of an anti-wear reagent at extreme pressure and 3-8% of dodecanoic acid. A preparation method of the lubricating grease for car flexible axles comprises the following steps: adding 70-80% of diester synthetic base oil, the benzoic acid, the stearic acid, the aluminum isopropoxide, the aluminum isopropoxide tripolymer, the carbamido thickening agent, the corrosion inhibitor, the anti-wear reagent at extreme pressure, the antioxidant, the dodecanoic acid and the rest of diester synthetic base oil in sequence, heating and stirring. The lubricating grease for car flexible axles has the beneficial effects of having good stability and oxidization resistance under a high-temperature environment and a low-temperature environment and can guarantee the viscosity and the lubricating effect of the lubricating grease.

Description

technical field [0001] The invention relates to the technical field of lubricating grease, in particular to an automobile flexible shaft lubricating grease and a preparation process thereof. Background technique [0002] The shaft of the car engine transmits power to the gearbox, and the transmission ratio from the output shaft of the gearbox to the wheels is constant. A "flexible shaft" is installed on the output shaft of the gearbox, which leads to the odometer in front of the driver. The so-called "flexible shaft" is a spiral tube with a steel wire core like the cable used for bicycle brakes, and there is grease between the tube wall and the inner core. In addition, the car also has accelerator flexible shaft, brake flexible shaft and clutch flexible shaft, etc., which should also be applied to grease. It can be seen that flexible shaft grease plays an extremely important role in automobile mechanisms. Due to the harsh environment of the flexible shaft, such as a high-...

Claims

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Application Information

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IPC IPC(8): C10M169/00C10N50/10C10N40/32C10N30/06C10N30/12
Inventor 张群敏许华平
Owner WUXI FEITIAN GREASE