During the use of the hydraulic cylinder, sometimes, it is clearly determined that the piston rod is in good condition when assembled, and there is no trace on the surface. But after using it for a while, I found that the piston rod is oily. In fact, oil-carrying is a phenomenon that is often encountered during use, because during use, there will inevitably be some collisions, which leads to the phenomenon of oil-carrying. The appearance of its oil production will affect the work to a certain extent, so how should we solve the problem of oil production?
Analysis of the reasons for the oil out:
1. Deformation of piston rod;
2. The inner lip of the sealing ring and the surface of the piston rod are not fitted;
3. The surface coating is damaged during use, resulting in unevenness on the surface;
4. There are scratches on the surface or in the process of use, accidentally bruised or bruised;
5. The size of the cylinder head or the guide sealing groove in the piston rod does not meet the requirements, so the compression amount cannot be increased. If the amount of compression does not go up, the amount of compression will gradually become smaller, resulting in oil out of the piston rod.
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