Foreign matters entering the hydraulic cylinder from the pipeline

A. Do not pay attention when cleaning. When the pipeline is cleaned after installation, it should not pass through the cylinder block. A bypass pipeline must be installed in front of the oil port of the cylinder block. This is very important. Otherwise, the foreign matter in the pipeline will enter the cylinder. Once it enters, it will be difficult to remove it from the outside, instead, it will transfer the foreign matter into the cylinder. In addition, the removal method of foreign matters in the pipeline installation operation shall be considered during cleaning. In addition, the corrosion in the pipe should be pickled before the installation of the pipe, and the corrosion must be completely removed.
B. Chip formed during pipe processing. After the pipe is cut to length, it shall not be left behind during the deburring operation at both ends. Moreover, placing steel pipes near the site where the welding pipeline operation is conducted is the reason for the mixing of welding foreign matters. The pipe orifice placed near the welding operation site shall be sealed. It must also be noted that the pipe fitting materials should be fully prepared on the dust-free workbench.
C. The sealing belt enters the cylinder. As a simple sealing material, polytetrafluoroethylene plastic sealing tape is often used in installation and inspection. If the winding method of linear and strip sealing material is not correct, the sealing tape will be cut off and enter the cylinder with it. The wire strip seal will not have any impact on the winding of the sliding part, but it will cause the one-way valve of the cylinder to act improperly or the buffer regulating valve cannot be adjusted to the bottom; For the circuit, it may cause the action failure of reversing valve, overflow valve and pressure reducing valve.
The traditional repair method is to repair the damaged parts by outsourcing after disassembly, or by brush plating or overall scraping of the surface. The repair cycle is long and the repair cost is high.