Guangdong lubricating oil is not to let all kinds of mechanical friction, play a protective role. As long as it is applied between two relatively moving objects, it can reduce the friction and wear of the two objects due to contact, that is, lubricating oil. Below, we will also talk about the knowledge of lubricant freezing point and pour point.

The freezing point is the highest temperature at which the oil stops flowing under the specified cooling conditions. The solidification of the oil is very different from the solidification of the pure compound. The oil does not have a clear solidification temperature. The so-called "solidification" is only as a whole. Seeing the loss of mobility, not all components have become solid.

   The freezing point of lubricating oil is an important quality index indicating the low-temperature fluidity of lubricating oil. It is important for production, transportation and use. Lubricating oil with high freezing point cannot be used at low temperature. Conversely, in areas with high temperature It is not necessary to use a lubricating oil with a low freezing point. Because the lower the freezing point of the lubricating oil, the higher the production cost, resulting in unnecessary waste. Generally speaking, the freezing point of the lubricating oil should be lower than the lowest temperature of the use environment. 7 ° C. But in particular, when using low-temperature lubricating oil, it should be considered in combination with the freezing point, low-temperature viscosity and viscosity-temperature characteristics of the oil. Because of the low-condensation point oil, its low-temperature viscosity and viscosity Temperature characteristics may also not meet the requirements.

   Both the freezing point and the pour point are indicators of the low temperature fluidity of the oil. There is no principle difference between the lubricating oils, but the measuring method is slightly different. The freezing point and pour point of the same oil are not completely equal, and the general pour point is high. It is 2~3°C at the freezing point, but there are exceptions.