How to choose high temperature chain oil correctly? Is the higher the temperature marked on the barrel, the better?
February 09, 2022
When the chain operates at high temperature, it is often caused by the problem of chain jamming. Due to the dust in the air, the residues generated when the lubricating oil is burned or oxidized, the rollers and bearings of the chain are squeezed tightly. When the chain is operated at high temperature, the viscosity of the lubricating oil will decrease, and the chain is strongly affected by the centrifugal action, which easily leads to the tendency to draw out the lubricating oil. When the chain oil works under the working condition of over 300℃, the Base Oil in the chain oil, regardless of mineral oil or synthetic oil, is evaporated, it is only the time difference of evaporation. 280°C. The high temperature chain oil temperature has two temperatures: one is the flash point and the other is the operating temperature. Flash point: the open flash point, the actual application temperature in ordinary environments should be 20°C -30°C lower than the flash point of lubricating oil. The flash point of lubricating oil refers to the temperature at which the mixture of vapor and atmosphere escaping from the heated oil contacts the flame and produces an instant fire under the premise of delineation, which is called the flash point. Working temperature: The temperature that can actually meet the working conditions. At this temperature, it is briefly described as less coking and carbon deposition and less volatilization.
How to choose high temperature chain oil correctly? 1. You don't care how much temperature is marked on the high temperature chain oil drum? It's 300, 500, 1000 degrees. You ask him what is the actual maximum working temperature of high temperature chain oil? If the liquid high temperature chain oil continues to exceed 260 degrees and the gap is 280 degrees, you should pay attention! The use temperature of mineral oil type chain oil is below 150 degrees, the use temperature of polyether type chain oil is between 150-220 degrees, and the use temperature of synthetic ester type chain oil is 220-260 degrees. Lubrication at a high temperature of 300°C is not suitable for general chain oils. A better solution abroad is: solid lubrication, the solid lubricant is dispersed in the oil, and a lubricating layer can be formed on the chain during work.
2. The amount of coking is the most important indicator for evaluating the quality of chain oil. Coke is inevitable. Good chain oil has a stable chemical structure, produces little oily coke, and can be taken away, which can prolong the maintenance and cleaning of the chain. focal cycle.
3. Volatility is another important indicator to measure the quality of chain oil. A good chain oil requires as little volatilization as possible. The main reason for the large chain oil consumption is the large amount of oil volatilization, thereby reducing the economic benefits of chain oil.
