In the hydraulic and pneumatic, engineering machinery, and automotive manufacturing industries, hydraulic piston rods have an extremely wide range of applications. Transfer pressure, lubrication, cooling, and sealing are all important aspects of piston rod operation. When selecting a suitable hydraulic piston rod for the hydraulic system, it should also be necessary to select the appropriate hydraulic oil according to the grade specified in the piston rod instruction manual. If special circumstances occur, the performance of the oil should be consistent with the performance of the original grade. The substitute oil avoids the chemical reaction caused by the mixing of different grades of piston rods with hydraulic oil, resulting in a change in performance.
In addition, in the early stage of assembling the piston rod, inspection and matching are essential steps: First, whether the hydraulic piston rod edge gap and the ring groove are suitable, the piston rod is installed in the ring groove, if the piston rod can be free in the ring groove Rotating, can sink into the bottom of the ring groove, and its edge gap is between 0.10~0.15mm, indicating that the piston rod edge gap is matched with the ring groove. If the critical value is exceeded, the edge gap is too large.
Secondly, check if the mass difference between the piston rod and the connecting rod of the hydraulic piston rod is within the allowable range. Finally, whether the matching of the piston and the cylinder liner is qualified, usually we clean and dry the piston and the cylinder liner, then apply a layer of cleaning oil on the respective working surfaces, then erect the cylinder liner with the piston top facing down. And put it into the cylinder liner smoothly with your right hand. If the piston slowly falls, the clearance between the piston and the cylinder liner is very good.www.skivingtubelw.com
