When we don’t want to change oil-free air compressor oil, how do we judge whether it has deteriorated? According to relevant technical personnel, there are many ways to identify whether mobile oil-free air compressor oil has deteriorated, and they are all relatively simple. Individuals can do it. The following editor will introduce you to several commonly used simple identification methods, and teach you to quickly identify whether the oil of the mobile oil-free air compressor has deteriorated.
1. Rolling method
Twist the oil-free air compressor oil between the thumb and the index finger for repeated grinding. The better oil-free air compressor oil feels lubricity, less wear and no friction. If you feel the sand between your fingers, A large sense of friction indicates that there are too many impurities in the oil of the oil-free air compressor and cannot be used anymore, and the oil-free air compressor oil should be replaced with a new one.
2. Oil drop trace method
Take a clean white filter paper and place a few drops of oil on the filter paper. After the oil leaks from the oil-free air compressor, if there is black powder on the surface and there is a sense of resistance to touch with your hands, it means that the oil-free air compressor There are many impurities in the oil. A good oil-free air compressor oil has no powder. It is dry and smooth to the touch with yellow marks.
3. Illumination method
On a sunny day, use a screwdriver to lift up the oil-free air compressor oil and make a 45-degree angle with the horizontal. Contrast with sunlight and observe the condition of oil droplets. Under sunlight, it can be clearly seen that there is no wear debris in the oil-free air compressor oil, which is good and can continue to function. If there are too many wear debris, the oil-free air compressor oil should be replaced.
4. Oil flow observation method
Take two measuring cups, one of which is filled with oil-free air compressor oil to be inspected, and the other is empty on the desktop. Lift the measuring cup full of oil-free air compressor oil 30-40 cm away from the desktop and tilt it. The oil of the oil-free air compressor flows slowly into the empty cup and observes its flow. The oil flow of a good quality oil-free air compressor should be slender, uniform and continuous. If the oil flows suddenly and slowly, Occasionally, a large piece of water flows down, which means that the oil-free air compressor oil has deteriorated.