What is the difference between oil-free air compressor and ordinary air compressor? Oil-free air compressor is mainly for some special industries, such as medical, food industry, these industries with high requirements for air cleanliness, oil-free air compressor plays a big role in the industrial field, so how can we tell the oil of oil-free air compressor appears to deteriorate?
1、Grinding method
The oil-free air compressor oil twist between the thumb and index finger repeatedly grinding, better oil-free air compressor oil hand feel lubricity, less abrasive chips, no friction, if you feel a greater sense of friction between the fingers of sand and such, it indicates that the oil-free air compressor oil within the impurities, can no longer be used, should be replaced with new oil-free air compressor oil.
2、Oil drop trace method
Take a clean white filter paper, drop several drops of oil on the filter paper, after the oil-free air compressor oil leakage, if there is black powder on the surface, touch with your hands with a sense of resistance, it means that there are many impurities inside the oil-free air compressor oil, good oil-free air compressor oil without powder, dry and smooth with your hands, and yellow traces.
3、Lighting method
On a sunny day, use a screwdriver to lift up the oil-free air compressor oil and make an angle of 45 degrees with the horizontal surface. Against the sunlight, observe the oil droplet situation. Under the light, it can be clearly seen that the oil-free air compressor oil without abrasive chips is good and can continue to function, and if there are too many abrasive chips, the oil-free air compressor oil should be replaced.
4、Oil flow observation method
Take two measuring cups, one of which holds the oil-free air compressor oil to be checked, the other empty on the table, the cup full of oil-free air compressor oil will be raised 30-40 cm off the table and tilted, let the oil-free air compressor oil slowly flow into the empty cup, observe its flow, good quality oil-free air compressor oil flow should be thin, uniform, continuous, if the oil flow is fast and slow, and sometimes there are large pieces of flow down, then the oil-free air compressor oil has been said to be good. Then the oil-free air compressor oil has deteriorated.
The above is a summary of the causes of oil deterioration of oil-free air compressor, I hope this article is helpful to you, want to know more about oil-free air compressor knowledge please pay attention to pumpchina.net.
