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Precautions for the use of hydraulic cylinder |
One, external leakage
1, the sealing damage of the piston rod and the piston rod is mostly caused by the pulling of the piston cylinder and aging.
2, the seal damage of the end and cylinder sleeve of the piston rod is damaged. This is due to the sealing aging of the seal for a long time, and many of the top cover when the seal is forced to be damaged by the seal. There are many manufacturers of hydraulic cylinders in China that are unreasonable. In most cases, the manufacturer is to save the cost. The result is.
3, the cracking of oil cylinder inlet and outlet pipe joint will also cause the leakage of hydraulic cylinder.
4, oil leakage caused by defects on cylinder block or cylinder end cover.
5, the piston rod is pulled into a slot, a pit, and so on.
6, the deterioration of the lubricating oil caused the abnormal increase of the oil cylinder temperature and the aging of the sealing ring.
7, oil leakage often exceeds the pressure range of the cylinder.
Two, internal leakage
1, the wear ring on the piston is seriously worn, resulting in friction between the piston and the cylinder liner, and finally pulls the cylinder liner, piston and seal.
2, the long term use of sealing failure, piston seals (mostly U, V, Y rings, etc.) aging.
3, the hydraulic oil is dirty, and a lot of impurities enter the cylinder to wear the piston seal to bad, usually iron filings or other foreign objects.
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