Material characteristics of hydraulic seal

    Hydraulic seals in the operation of machinery and equipment (application) in the process, always encounter a lot of bad factors, such as cracking, deformation, leakage, poor hardness performance, anti pressure is too low and so on.This is our most aware of the adverse factors have with you in the selection of sealing material (material) has a very relationship, such as temperature, hardness, tensile strength, elongation, resilience, compression permanent deformation properties.

     The temperature range of the hydraulic seal is one of the most important parameters.But to consider the use of hot state (anti high temperature ability) temperature, but also consider the cold state (cooling performance, anti low temperature ability) of the use of temperature.At a certain point the sealing material will begin to change over the heat (resistance to high temperature resistance) or chemical change.In the cold (cooling performance, anti low temperature capability) the use of temperature, the sealing material at a point will begin to harden, so that the sealing parts become brittle to the seal, etc.

      The elastomer hydraulic seal material will form different hardness points.The shore hardness of the O type seal ring is typically 60-90 of the hardness unit.The hard O type sealing ring can be very resistant to extrusion, and the O ring has a relatively low explosive or sliding friction properties.

      Hydraulic seal pieces of material tensile stretch strength properties, all of the elastomeric sealing material tensile strength to than other sealing materials are lower. When the tensile strength decreased, due to the surrounding environment influence or group of incorrect and lower than the normal value, thus elastomer will be damage.

      The temperature range of the hydraulic seal is one of the most important parameters. It is not only to consider the temperature of the hot state (anti high temperature ability), but also to consider the temperature of the cold state (cooling performance, anti low temperature ability).At a certain point the sealing material will begin to change over the heat (resistance to high temperature resistance) or chemical change.In the cold (cooling performance, anti low temperature capability) the use of temperature, the sealing material at a point will begin to harden, so that the sealing parts become brittle to the seal, etc.

     The elastomer hydraulic seal material will form different hardness points.The shore hardness of the O type seal ring is typically 60-90 of the hardness unit.The hard O type sealing ring can be very resistant to extrusion, and the O ring has a relatively low explosive or sliding friction properties.

     All of the elastomeric hydraulic seal sealing material tensile strength to lower than the other sealing materials are. When the tensile strength decreased, due to the surrounding environment influence or group of incorrect and lower than the normal value, thus elastomer will be damage.

Installation method of hydraulic cylinder hydraulic seal.

1. cleaning: all sealing device hardware, sealing element cleaning oil.

2. Put into the groove:Put 0 ring (O-ring sealing elastomer) into the seal groove.

3. Axis: the axis is installed on the piston.

4. Propeller:The trap in the axis of propeller was pushed into the trench.

5. Remove the axis: remove the mounting shaft from the piston.

6. Completion:While turning, while the recovery tool to seal components, one minute after the demolition.