In the use process and long-term storage of the machine, the lubricating oil is mostly in contact with the air, and oxidation with oxygen is inevitable, and the quality degradation also affects the working performance.
The oxidative deterioration of the hydrocarbon components of lubricating oil is related to various factors. It is also related to external working conditions such as temperature, air contact degree, metal and moisture.
The oxidation resistance of lubricating oil is called the oxidation stability of lubricating oil. There are two types of oxidation stability: anti-oxidation stability and thermal oxidation stability.
One is anti-oxidation stability. Thick-layer lubricating oil has the ability to resist oxidation under the action of high temperature and oxygen in the air, and is stable at room temperature; but at high temperature, the oil color becomes slightly black, the viscosity changes, and the acid value increases. precipitation.
Generally speaking, lubricating oil below 30°C is difficult to oxidize, but oxidation above 150°C proceeds very intensely. Some lubricants add antioxidants to improve the antioxidant stability.
The second is thermal oxidation stability, the ability of a thin layer of lubricating oil (with an oil layer thickness of less than 200m) to resist oxidation at high temperatures through oxygen in the air.
The result of oxidation is the formation of a rubber film with strong adhesion. When it comes into contact with the metal workpiece, the wear increases, the power decreases, and the heat conduction is difficult. In severe cases, the workpiece burns.
Baoxing thermal grease series have better heat dissipation efficiency than other heat dissipation products. And it has excellent thermal conductivity and good electrical insulation.
The operating temperature is between -50 ~ 250°C. Good stability, low consistency, non-toxic, non-corrosive, tasteless and non-dissolving.
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.
