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Dongguan Mingzhen Rubber & Plastic Products Co., Ltd.

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Dongguan Minz Rubber & Plastics Co., Ltd.

Add.: No.4, New Industrial Road, Shipai Tangwei, shipai town, Dongguan City
Tel: +86-0769-8665 2688
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Contact: Miss Li +86-136 6988 8704
Mailbox:lixiaoxia@dgminz.com.cn

Dongguan O-ring seal manufacturer briefly introduces O-ring seal for you

Release time:

2018-06-09 12:30

Source:

O-ring is a rubber ring with a circular cross-section. Because its cross-section is O-shaped, it is called O-ring. It is one of the most widely used in hydraulic and pneumatic transmission systems. Usually in Taiwan enterprises, Japanese enterprises called O Ring.
O-rings are annular rubber seals with a circular cross-section. Mainly used for mechanical parts to prevent leakage of liquid and gaseous media under static conditions. In some cases. The O-ring can also be used as a dynamic sealing element for axial reciprocating motion and low-speed rotary motion. According to different conditions, different materials can be selected to adapt to it.
O type sealing ring is usually selected to try to choose a large cross-section of the O ring. In the case of the same gap. The volume of the O-ring seal that is squeezed into the gap should be less than the maximum allowable value.
For different types of fixed or dynamic sealing applications, o-rings provide designers with an effective and economical sealing element. O-ring is a two-way acting sealing element. The initial compression in the radial or axial aspect upon installation gives the o-ring its own initial sealing capability. The sealing force generated by the system pressure and the initial sealing force are combined into the total sealing force, which increases with the increase of the system pressure. O-ring in the static sealing occasions, showing a prominent role. However, in dynamic applications, o-rings are often used, but they are limited by the speed and pressure at the seal. Technical data pressure:
Speed:
The maximum reciprocating speed in static situations can reach 0.5 m/s
When there is no retaining ring, the maximum pressure can reach 20mpa and the maximum rotation speed can reach 2.0 m/s
When there is a retaining ring, the maximum pressure can reach 40mpa
Medium and temperature:
When there is a special retaining ring, the maximum pressure can reach 200mpa, see the "Rubber Seal Material Characteristics Table"
dynamic pressure
Maximum compression:
When there is no retaining ring, the reciprocating movement can reach up to 5mpa. Static seal: 20% of the diameter of the o-ring
When there is a retaining ring, the higher pressure dynamic seal: 30% of the diameter of the o-ring
Scope of application:
O-ring is suitable for installed in a variety of mechanical equipment, in the specified temperature, pressure, and different liquid and gas medium, in the static or motion state from the sealing effect. In machine tools, ships, automobiles, aerospace equipment, metallurgical machinery, chemical machinery, construction machinery, mining machinery, petroleum machinery, plastic machinery, agricultural machinery, and various instruments, a large number of applications of various types of sealing components. O-ring seal is mainly used for static seal and reciprocating motion seal. When used for rotary motion sealing, it is limited to low-speed rotary sealing devices. O-ring seal is generally installed in the outer circle or inner circle on the cross-section of the rectangular groove from the sealing effect. O-ring in the oil, acid and alkali, grinding, chemical erosion and other environments still play a good sealing, shock absorption. Therefore, O-ring is the most widely used seal in hydraulic and pneumatic transmission system.

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