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Hydraulic O-ring seal pressure gas viscous friction characteristics
2016-09-17 17:30:25

Hydraulic O-ring seal pressure gas viscous friction characteristics
 
Hydraulic O-ring sealHydraulic O-ring seal pressure gas viscous friction characteristics
O-ring seals O-ring compression pressure and sliding velocity at low gas pressure seal fluorine rubber O-ring viscous friction characteristics under low pressure on the O-ring influence of viscous friction.
Viscoelastic properties of hydraulic O-ring material, resulting in the hydraulic friction lag O-ring and metal surfaces in relative motion, which forms an additional seal face closing force and turn affect the characteristics of dry gas seal and stable operation of the dry gas seal .
Hydraulic friction characteristics of the O-ring seal is an important issue concerns research.
Certain low speed compression ratio of nitrile rubber O-rings have a significant force - displacement lag. However, the characteristics of such viscous friction caused by the viscoelastic material, particularly in the variation of friction under dry conditions is unclear. When the seal results showed that: with the increase of compression ratio, fluorine hydraulic O-ring friction increase, and showing a significant rebound characteristics that increased friction and release time lag increases; increases the sealing pressure, which suffered the greatest static friction, sliding friction and hysteresis friction showed a nonlinear variation, and a maximum value exists; reduce speed reciprocating motion, friction value increases, but the extreme value corresponding friction sealing pressure value becomes small.
Experimental study of hydraulic pressure seal O-ring, compression and slip velocity on the friction law. The results showed that the lower the pressure, the seal opening force is small, the impact of viscous friction characteristics of O-ring seals to dry gas is more prominent. Low friction characteristics under conditions of a fluorine gas pressure hydraulic seal O-ring were studied experimentally analyzed sealing pressure and compression ratio of the O-ring friction influence law, focused on the hydraulic O-ring becomes viscous friction characteristics law, aimed at low-pressure dry gas seal design provides reference.
Viscous friction characteristics Viton O-rings cause friction characteristics showing a significant rebound. The greater the compression ratio, fluorine rubber resilient nature of the more obvious, and with the increase of pressure seal, O-ring friction release lag time required for growth.
Rubber O-ring seal friction with the increased pressure on non-linear change, and a maximum value exists. Reciprocation speed reduced friction rubber rod, O-ring suffered increased friction with the change of the frictional force constant sealing pressure, sealing pressure value corresponding to the extreme value but smaller. pressure gas viscous friction characteristics
O-ring seals O-ring compression pressure and sliding velocity at low gas pressure seal fluorine rubber O-ring viscous friction characteristics under low pressure on the O-ring influence of viscous friction.
Viscoelastic properties of hydraulic O-ring material, resulting in the hydraulic friction lag O-ring and metal surfaces in relative motion, which forms an additional seal face closing force and turn affect the characteristics of dry gas seal and stable operation of the dry gas seal .
Hydraulic friction characteristics of the O-ring seal is an important issue concerns research.
Certain low speed compression ratio of nitrile rubber O-rings have a significant force - displacement lag. However, the characteristics of such viscous friction caused by the viscoelastic material, particularly in the variation of friction under dry conditions is unclear. When the seal results showed that: with the increase of compression ratio, fluorine hydraulic O-ring friction increase, and showing a significant rebound characteristics that increased friction and release time lag increases; increases the sealing pressure, which suffered the greatest static friction, sliding friction and hysteresis friction showed a nonlinear variation, and a maximum value exists; reduce speed reciprocating motion, friction value increases, but the extreme value corresponding friction sealing pressure value becomes small.
Experimental study of hydraulic pressure seal O-ring, compression and slip velocity on the friction law. The results showed that the lower the pressure, the seal opening force is small, the impact of viscous friction characteristics of O-ring seals to dry gas is more prominent. Low friction characteristics under conditions of a fluorine gas pressure hydraulic seal O-ring were studied experimentally analyzed sealing pressure and compression ratio of the O-ring friction influence law, focused on the hydraulic O-ring becomes viscous friction characteristics law, aimed at low-pressure dry gas seal design provides reference.
Viscous friction characteristics Viton O-rings cause friction characteristics showing a significant rebound. The greater the compression ratio, fluorine rubber resilient nature of the more obvious, and with the increase of pressure seal, O-ring friction release lag time required for growth.
Rubber O-ring seal friction with the increased pressure on non-linear change, and a maximum value exists. Reciprocation speed reduced friction rubber rod, O-ring suffered increased friction with the change of the frictional force constant sealing pressure, sealing pressure value corresponding to the extreme value but smaller.

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