Cartridge Seal

Dry friction of mechanical seal-

by:Lepu     2021-04-14
Dry friction of mechanical seal
 2017-06-15  
Dry friction of mechanical seal:
Generally, fluid seals such as custom-made mechanical seals like 104 will increase the force and reduce the gap, which will cause the friction pair to start dry friction due to temperature rise or other reasons. In addition, most fluid seals experience semi-dry friction or dry friction briefly when the machine is turned on or stopped. Because dry friction will cause the seal ring to be thermally cracked or burned and malfunction, it is necessary to study the dry friction state. Although there is a seal ring made of self-lubricating materials, the limit PV value must be known.
The famous formula derived by Grubeyev of the Soviet Union was used to determine the maximum PV value without thermal cracking.

where

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The thermo-hydrodynamic pressure effect of mechanical seals    Overview of gasket seals of mechanical seals
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