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Reasons for Lubricant Failure and Judgment

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Feb. 26, 2021


First of all, we need to understand why lubricating grease is lost or reduced during use?

 

 

 There are three reasons for grease loss:

 

1. Physical reasons: due to the operation of the friction part, the lubrication is constantly affected by the shear stress, which damages the soap structure and softens it.

 

2. Chemical reasons: The base oil and thickening agent are oxidized under the influence of heat and air at the friction lubrication part, which leads to the destruction of the soap structure of the grease and the loss of it.

 

3. Causes of impurities: abrasion occurs in the sports body. These metal powders can accelerate the oxidation of the grease to produce organic acids, thereby destroying the structure of the grease and causing the grease to fail.

 

 

The correct selection of grease according to the operating conditions of the equipment (including load, temperature, speed, etc.) can prolong the service life of the grease.

 

Secondly, there are five aspects to be considered for further understanding of the causes of lubricating oil failure and identification methods.

 

 

1. High temperature influence-Lubricating oil will become oxidized and become black and thick when exposed to high temperature for a long time; the corrosive substances inside the lubricating oil will increase.

 

 

2. Impurities-mainly come from dust in the air, metal abrasive particles, leakage (fuel, water, etc.), lubricating oil oxides, and substances produced by fuel combustion.

 

 

3. Additive failure-some lubricating oils lose their performance due to the failure of the additives in them or after they are used up. For example, if the anti-wear agent in the lubricating oil is used up, the anti-wear property will decrease.

 

 

4. Viscosity index enhancer fails-the long chain of organic molecules is broken and no longer has the effect of increasing viscosity.

 

 

5. Base oil failure-the base oil is the carrier of the additive. If the base oil fails, the additive will not play a role.

 

For 15 years, we have focused on researching and developing all kinds of food grade lubricants and greases for small household appliances.

 

 

Cooperate with many well-known brand customers, welcome to inquire and provide free sample testing.


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