Industrial lubricants such as steam turbine oil, bearing lubricating oil, hydraulic oil, gear oil, machine tool lubricating oil, grease, machining fluid, textile lubricating oil, quenching oil, heat transfer oil, oil electrical, refrigeration oil, anti-rust oil, etc. are widely used in various industries, and 220# gear oil manufacturers are particularly well-known.
However, due to high demand, storing industrial lubricating oil can be a challenging task. If the oil deteriorates, it should not be used.
So how do we know if industrial lubricants have deteriorated?
The deterioration of industrial lubricants can be identified by their dark color, increased foaming and emulsification. Additionally, manual polishing can also help distinguish degraded lubricants.
For example, if the oil appears less oily, has an unusual odor, or appears darker than usual, this could indicate spoilage.
The use of deteriorated lubricating oil in machines can result in damage to parts, thus reducing the useful life of the machine and presenting a risk of safety accidents.
To avoid such risks, it is crucial to regularly check the oil for signs of deterioration and replace it immediately.
Here are some methods for identifying deteriorated industrial lubricants.
1. The observation method
To perform this test, take two measuring cups: one filled with lubricating oil and the other empty. Lift the cup containing the oil to a height of three cups and pour it obliquely into the empty cup. Finally, look at the lubricating oil.
High quality industrial lubricating oil will flow evenly, steadily and in a thin stream into the empty cup.
If the quality of the oil is poor, it will flow sporadically and irregularly, leaving large chunks. This may indicate that the oil has deteriorated.
2. Finger grinding method
Rub the lubricating oil between your thumb and forefinger. After repeated rubbing, you can evaluate its lubricity, degree of friction, and the amount of wear debris present.
A high-quality lubricating oil will exhibit good lubricity, produce minimal wear residue, and create a smooth feel without any sense of friction.
However, if you notice particles during the rubbing process, it is an indication that the oil is problematic and should be replaced immediately.
3. Sunlight exposure method
To check industrial lubricating oil for wear residue, you can apply a small amount of oil to the tip of a screwdriver and tilt it at a 40-degree angle. The oil should drip slowly along the tip in sunlight, allowing easy observation of any oil droplets.
By examining the oil drops under the light, the presence of wear residue can be determined. If no residue is found, the oil is considered good. However, if there are excessive amounts of abrasive chips, an oil change is recommended.
4. Filter paper tracking method
Start by preparing a clean, white filter paper. Then put a few drops of lubricating oil on the filter paper and wait for the oil to leak out. Look for black powder and then touch the filter paper with your fingers to check for any signs of blockage.
If there is a significant amount of black powder, it is time to replace the filter paper.
A good quality lubricating oil should not contain any powdery residue.
If the filter paper is soft to the touch and has a yellow color, this indicates that the lubricating oil is in good condition and there are no problems with it.
