Current Location:Time: 2023-03-04 Views: 490 times
The oil mirror on the air compressor is convenient for us to observe the remaining amount and color of the lubricating oil. How to judge whether the air compressor is faulty from the color of the lubricating oil？If it's the same lubricant, according to the time scaleThe trend can be analyzed to determine the change of lubricating oil quality。Because, a change in color means that its chemical composition has changed or there are contaminants。If it is not the same type of oil, it cannot be based on color aloneJudge the quality of the oil。The color of lubricating oil is related to its main raw materials, and its color has no direct correlation with the quality of oil。
1. Base oil
Base oils vary in color according to the depth of processing。Class I oils are mostly light yellow, but Class II and III base oils refined by hydrogenation advanced treatment, as well as synthetic oils prepared by chemical methods, such as PAO,Ester oils, polyethers, etc., will contain fewer impurities such as aromatic hydrocarbons, their color will be relatively light, and they can achieve the same clarity as water!2. Additives
Additives affect air compressor oil: viscosity index improver, extreme pressure anti-wear agent, antioxidant, anti-foam agent, anti-rust agent, anti-emulsifier and so on。All of these additives come in different colors。When the additive and the base oil are blended, the color of the oil reflected in the oil will have different changes, or darker (such as brown), or lighter。
3. Dyeing agent
Sometimes a specific dye is added to certain lubricants and greases to change their original color。The purpose of this is sometimes to serve as a warning to distinguish other lubricantsOil, in fact, is more marketing factors, such as Ingersoll Rand is light red, Shou Li is green, Atlas is transparent white, Compuai is blue, Unax is red and so on, sometimes just to distinguish betweenWith the same product line, the stain will not have any lubricating protective effect。
During the use of air compressor oil, the oil will produce color changes, from light to deep, which is a common phenomenon。Some users will directly confuse the dark color of the oil with the quality of the oil, immediately change the oil,This is not scientific。When air compressor oil needs to be replaced, in addition to judging from the appearance, it also needs to be judged from the change of comprehensive indicators such as viscosity, acid value, insoluble content, or roughly according to the experience of field service personnelFrom the consistency, smell, appearance, preliminary judgment, sometimes the appearance of the oil seems good, but it has been seriously gelatinized aging, such as judging only from the appearance, easy to waste resources or ignore the real risk of the actual occurrence。
