The piston in the cylinder pressure parts.
Each other so that both cavity to prevent piston gas, is equipped with piston sealing ring.
Wear ring on the piston cylinder can be improved guidance, reduce the piston sealing ring wear, reduce frictional resistance.
Wear ring generally use polyurethane, ptfe, fabric material such as synthetic resin.
By the width of the piston ring size and length of sliding parts necessary to decide.
Sliding part is too short, easy cause early wear and jammed.
Cylinder in internal and external leakage basically because the piston rod eccentric installation, lubricating oil is insufficient, seals and sealing ring, wear or damage to the cylinder contains impurities and piston rod has a scar, etc.
So, when there is internal and external leakage of cylinder, should readjust the center of the piston rod, to ensure that the piston rod and cylinder alignment;
And often should check whether the oil mist detector work normally and guarantee good lubrication performance of the cylinder;
If there are impurities in the air cylinder, should keep clear of in time;
When there is scar on the piston seals, should change new, when sealing ring and sealing ring ring wear or damage when timely replacement.
Accurately should be between piston ring and cylinder wall lubrication, contact because the piston and cylinder is very slight.
% of wear occurred in a boundary friction and mixed friction, the friction in the process of start, when the part between seal and cylinder wall filled with lubricant, formed the mixed friction, this time with the increase of speed, the friction coefficient in rapidly reduced.
When the piston velocity reaches a certain value, that is, form effective lubrication film, realize fluid lubrication.
Is splash lubrication way, but excess oil blow down through the piston ring.
In addition, the cylinder honing in the cylinder liner surface when they form a lot of small pits to save oil, is good for soothing.
For pneumatic components, to achieve long life lubrication, must satisfy the consistency and the grease base oil viscosity suitable, can not only realize low coefficient of friction, and has the good auxiliary sealing effect;
Good adhesive performance of rubber has good compatibility and infiltration;
Good lubricating property and reduce the wear and tear.