The O -shaped ring is a round rubber ring with a circular shape.
The O -shaped sealing ring is a two -track sealing component. During the installation, the initial compression of the fitted sealing ring has in the radial or axial direction determines the initial seal of the sealing ring in the form of O. of the system acts on the O -shaped sealing circle is its total sealing force;
Under the action of the pressure, the shape of the C -shaped circle is similar to the liquid with a high surface tension. The pressure is transmitted in all directions.
Features:
1. Easy to dismantle in size
2. Dynamic static joints are available
3. There is almost no calm sealing leakage
4. Use a single two -way sealing piece
5. Small Frictional FRACTION
6. low price
O-Spaded Circle Scel Sanger Principle
The seal of the O -shaped circle is a compression seal. When the seal generates initial transformation and pink stress, pw> roseal, it will not flee.
Pm = p0 + pp ， pp = k × p。
PM = P0 + K × P
K is the coefficient which is transmitted to the pressure of the O -shaped circles (for rubber, k = 1) at average pressure. Consequently, as long as the o -shape ring has an initial pressure, it can reach an absolute sealing without leak.
The seal of the O-shaped circle is a self-establishment structure.
Selection of the compression rate of the joint seal in shape o
Theoretically, compression can also be sealed, which is actually impossible.
Potential: under the workload load, the o -shaped ring stretches and it can be disclosed.
Low temperature: rubber narrowing and lighting can leak (a low temperature will result in rubber aging and loses compensation).
Generally, the section has a compression deformation rate from 7% to 30%.
The O -shaped circle is selected by internal pressure and external pressure
Internal pressure: The outer diameter of the O -shaped circle is the same as the outer diameter of the groove.
Endotential pressure: The inner diameter of the C circle is the same as the inner diameter of the groove.
Prevent the diameter of the O -shaped circles that appear under the pressure of the work.
When installing the o -shape ring in the groove, it must be stretched or compressed. If the stretching and compression values are too large, the transverse section of the O -shaped circle will increase or decrease, because stretch 1% will reduce the diameter of the cross section by approximately 0.5%. For the sealing of the holes (internal pressure), it is preferable to be stretched by the O -shaped ring, and the quantity of maximum eligible stretch is 6%; To delay his compression.
Circle extrusion principle in the form of o
The O -shaped circle allows pressed gaps
Maximum compression Gax GMAX and system pressure, transverse diameter in the form of O and hardness of the material are linked. Generally, the higher the working pressure, the higher the maximum of GMAX made it possible to take maximum. If space G exceeds the eligible beach, it will cause O -shaped pressure or even damage.
O-Caracteristics of the material of the Circle in shape
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