Automobile heavy load bearing lubricating grease and its preparation method

A bearing lubrication and grease technology, applied in the field of lubrication, can solve the problems of corrosion of bearing materials, bearing fatigue damage, catastrophic accidents, etc., to reduce friction, prolong bearing life, and achieve the effect of excellent lubrication

Active Publication Date: 2014-12-03
AMER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the lubricant is continuously oxidized during use, and the products of oxidation are acidic substances, which have a corrosive effect on the bearing material and cause the bearing to fail; if the viscosity of the lubricant decreases to a certain critical value, the bearing will experience early fatigue damage , if the drop is too low, catastrophic accidents will also occur

Method used

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  • Automobile heavy load bearing lubricating grease and its preparation method
  • Automobile heavy load bearing lubricating grease and its preparation method
  • Automobile heavy load bearing lubricating grease and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The grease raw material of this embodiment includes the following components by weight percentage: 73% 220CST viscosity naphthenic base oil, 8% fatty acid, 2.8% dibasic acid, 10% polyisobutylene adhesive, 1.5% polymer polyisobutylene Oil solution, 3.5% aminothioester antiwear agent, 1.2% grease compounding agent;

[0018] The preparation method of the automobile heavy-duty bearing grease of the present embodiment comprises the following steps:

[0019] a. Mix the 220CST viscosity naphthenic base oil and fatty acid evenly according to the set weight percentage, then add it to the reactor and heat it. 10%, and keep it warm for 1.3 hours at a temperature of 100°C;

[0020] b. Continue to slowly heat the solution in step a until the temperature is 130°C, add a dibasic acid with a set weight percentage, stir for 10 minutes, and then add a lithium hydroxide solution with a concentration of 25% until the mixed solution contains 10% lithium hydroxide. %, and keep it warm for ...

Embodiment 2

[0026] The grease raw material of the present embodiment comprises the following components by weight percentage: 64% 220CST viscosity naphthenic base oil, 9% fatty acid, 3% dibasic acid, 15% polyisobutylene adhesive, 2% polymer polyisobutylene Oil solution, 5% aminothioester antiwear agent, 2% grease compounding agent;

[0027] The preparation method of the automobile heavy-duty bearing grease of the present embodiment comprises the following steps:

[0028] a. Mix the 220CST viscosity naphthenic base oil and fatty acid evenly according to the set weight percentage, then add it to the reaction kettle and heat it. 10%, and keep it warm for 1 hour at a temperature of 90°C;

[0029] b. Continue to slowly heat the solution in step a until the temperature is 120°C, add a set weight percentage of dibasic acid, stir for 5 minutes and then add a 25% lithium hydroxide solution until the mixed solution contains 10% lithium hydroxide. %, and keep it warm for 1 hour at a temperature of...

Embodiment 3

[0035] The grease raw material of this embodiment includes the following components by weight percentage: 81% 220CST viscosity naphthenic base oil, 7.5% fatty acid, 2.5% dibasic acid, 5% polyisobutylene adhesive, 1% polymer polyisobutylene Oil solution, 2% aminothioester antiwear agent, 1% grease compounding agent.

[0036] The preparation method of the automobile heavy-duty bearing grease of the present embodiment comprises the following steps:

[0037] a. Mix the 220CST viscosity naphthenic base oil and fatty acid evenly according to the set weight percentage, then add it to the reactor and heat it. 10%, and keep it warm for 1.5 hours at a temperature of 110°C;

[0038]b. Continue to slowly heat the solution in step a to a temperature of 140°C, add a set weight percentage of dibasic acid, stir for 15 minutes and then add a 25% lithium hydroxide solution until the mixed solution contains 10% lithium hydroxide. %, and keep it warm for 1.5 hours at a temperature of 120°C;

...

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PUM

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Abstract

The invention discloses an automobile heavy load bearing lubricating grease and its preparation method. The lubricating grease comprises the following raw materials by weight percentage: 220CST viscosity naphthenic base oil, fatty acid, dibasic acid, a polyisobutylene adhesion agent, a high polymer polyisobutylene oil solution, an aminothioester antiwear agent, and a lubricating grease composite agent. The lubricating grease has excellent anti-wear and extreme pressure properties, and ensures an optimal loading ability; it can reduce friction very effectively, and control the generated heat to the minimum; it has excellent high temperature oxidation stability, and can guarantee the long term normal work of lubricating parts at high temperature; it can provide comprehensive protection to bearings, thus greatly prolonging the bearing life; and the lubricating grease also has an excellent lubricating effect on metal surfaces.

Description

technical field [0001] The invention relates to the field of lubrication, in particular to an automobile heavy-duty bearing lubricating grease and a preparation method thereof. Background technique [0002] Heavy-duty vehicles include large passenger cars, heavy-duty trucks, and engineering vehicles. Due to factors such as overload, impact load, and high-intensity continuous driving, it will cause serious friction damage, stress damage, and fatigue damage to the bearings of such vehicles, which will greatly reduce the bearing capacity of the vehicle. Service life; Among them, the friction damage caused by poor lubrication and overload is the most important factor for the damage of heavy-duty vehicle bearings. Frequent replacement of a full set of bearings for vehicles increases maintenance costs and reduces the effective operating time of vehicles, which directly affects economic benefits. The heavy-duty bearings of automobiles are usually under harsh working conditions suc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10N40/02C10N30/06
Inventor 魏芳仕汪小龙
Owner AMER TECH CO LTD
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