We can clean the external appearance of the piston rod, and carefully observe whether the carbon deposit on the top surface is present or not, and see if there is any defect. Under normal circumstances, the top of the piston rod is allowed to have a thin layer of carbon deposits. The color of the carbon deposit should be black or gray. If the carbon deposit is too much, the carbon deposit floating on it can be scrubbed. Assuming that there is still a relatively hard carbon layer to remove, it is necessary to check whether the composition of the gasoline is over-expanded, or the quality of the lubricant is too bad.

 

Regarding the length of the piston rod, it should not be too short. If you think about it from the point of view of the scheme, although the piston rod is not expected to receive radial force, it is bound by the internship plan. The piston rod must receive a large amount of radial external force. The length of the piston rod must be moderate, and the wide length is 0.7-1.0 times of the outer diameter of the piston rod, which helps to add the outer surface of the piston rod and increase the guiding effect of the piston rod, thereby reducing the wear rate and also the traveling hydraulic cylinder. The life of the application. In fact, the quality of the piston rod is largely based on the quality of the hydraulic cylinder, so the precision of the processing of the piston rod is very high.