Causes And Countermeasures For Failure Of Cylinder Sealing Rubber O-ring Replacement
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(1) Installation damage
Failure state: The seal ring has a part or all of neat wounds.
Failure reasons: The edges and corners of the groove and other parts are sharp, the seal size is not appropriate; the hardness or elasticity of the seal is too low; there is dirt on the seal surface.
Solution: Remove sharp edges and corners; make the groove design more reasonable; choose a seal of appropriate size; choose a seal with greater elasticity and higher hardness.
(2) Curling
Failure state: The O-ring is obviously curled
Failure reasons: Installation caused, the movement speed is too low, the material is too hard or the elasticity is too small, the surface treatment of the O-ring is uneven, the groove size is uneven, the groove surface is rough, and the lubrication is insufficient.
Solution: Correct installation, select high elasticity materials, appropriately improve the design of the groove and the degree of surface finish, and try to use support rings.
(3) Excessive compression
Failure state: The contact surface of the O-ring is flat and deformed, and may be accompanied by cracks.
Failure reasons: Unreasonable design, failure to consider the deformation of the material caused by heat and chemical media, or deformation caused by excessive pressure.
Solution: The design of the groove should take into account the deformation of the material caused by temperature and chemical media.
1.rodless actuators The sealing ring should have good sealing performance within the working pressure and a certain temperature range, and the sealing performance can be automatically improved as the pressure increases.
2.compact rodless cylinder The friction between the sealing ring device and the moving parts should be small, and the friction coefficient should be stable.
3.double acting rodless cylinder The sealing ring has strong corrosion resistance, is not easy to age, has a long working life, good wear resistance, and can automatically compensate to a certain extent after wear.
4. The structure is simple, easy to use and maintain, so that the sealing ring has a longer life.
SMCelectric rodless cylinder sealing ring installation precautions
1. Clean the guided rodless cylinder installation position;
2. Remove burrs during the installation and movement of the seal;
3. Apply lubricant to the seal;
4. Protect the sealing surface from damage;
5. Verify that the size of the seal is correct;
6. Use the corresponding tools to install the seal that needs to be deformed.
