Friends who have a certain understanding of the hammer know that during the whole use period, if you pay little attention to it, there will be damage. If the piston is pulled during the use, it will make people feel big. What factors will lead to this situation of breaking hammer?
The hydraulic oil is not clean Cleanliness: If impurities are mixed into the oil, once it intrudes into the gap between the piston and the cylinder, the chance will cause the breaking hammer to strain. The groove marks with a depth of more than 0.1mm are small in quantity, and the length is approximately equal to the piston stroke.
Clearance between piston and cylinder: this situation usually occurs when a new piston is replaced. If the clearance is too small, the breaking hammer will change with the increase of oil temperature during work, and the clearance will also change accordingly. At this time, the piston, the cylinder body is easy to cause strain. Scratch the depth is shallow, the area is large, and the length is approximately equal to the piston stroke.
Low hardness value: the piston is affected by external force during the movement, because the surface hardness of the piston and cylinder body is low, it is easy to cause strain phenomenon. Shallow depth and large area.
Edit: T
