Important Properties of Gaskets
In our previous issue, we discussed one of the main performances of gaskets, i.e., mechanical behavior performance. In this issue, we will focus on sealing behavior performance.
Sealing Behavior Performance ?
It is difficult to truly reflect the complex leakage phenomenon of the medium through the gasket by relying solely on theoretical predictions for the sealing behavior of gaskets. Therefore, it is mainly determined through experiments.
The sealing behavior performance mainly includes three indicators: leakage rate L, tightness T, and tightness parameter Tp.
Leakage Rate L
It refers to the mass or volume of the medium leaking through the gaps of the sealing surface and the gasket body per unit time. This parameter intuitively reflects the anti-leakage ability of the gasket.
Tightness T
It is obtained by conducting room - temperature or high - temperature sealing tests on gasket samples under standard test conditions. It represents the leakage rate of the gasket under a certain gasket stress and test medium pressure. The degree of tightness characterizes the sealing performance of the medium through the gasket itself and between the gasket and the sealing surface.
Tightness Parameter Tp
The tightness parameter Tp is a dimensionless characterization parameter that connects the sealing stress and the leakage rate. It builds a quantitative bridge between the sealing stress and the leakage rate, facilitating engineers to quickly evaluate the sealing performance of gaskets under different working conditions and providing a scientific basis for gasket selection and sealing structure design.
BMCSWG: Excellent Rebound Performance and Sealing Performance
To sum up, the leakage rate, tightness, and tightness parameter Tp outline the profile of the gasket's sealing behavior performance from different angles. These experimentally derived indicators provide a practical reference for understanding the sealing performance of gaskets under actual working conditions, lay a solid foundation for related design and selection work, and help achieve more practical applications in the sealing field.
Ingenious Seal Mastery
For sealing leakage issues, Baohua provides solutions. If you have any doubts about sealing technology, please pay attention to Suzhou Baohua and feel free to consult, comment, or leave a message! Thank you all! We will continue to talk about the important properties of gaskets in the next issue. See you next time!
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