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News And Information
28
2022
-
02
Friction Analysis of Rotating Sealing Ring
The influence of the friction of the sealing ring not only damages the parts, affects the working state and the sealing effect, but also affects the friction phenomenon caused by the gradual rotation of the sealing ring by changing the chemical and molecular composition of the sealing material to a certain extent. In the process of changing the material of the rotating seal ring, the technical design of the seal ring manufacturer will prepare and master the conversion change between the friction coefficient and the extrusion performance of the seal in advance.
Author:
The influence of the friction of the sealing ring not only damages the parts, affects the working state and the sealing effect, but also affects the friction phenomenon caused by the gradual rotation of the sealing ring by changing the chemical and molecular composition of the sealing material to a certain extent. In the process of changing the material of the rotating seal ring, the technical design of the seal ring manufacturer will prepare and master the conversion change between the friction coefficient and the extrusion performance of the seal in advance.
Rotating seal ringThe research of the manufacturer puts forward that if the work efficiency and the availability of the mechanical equipment system are improved, it has a good environmental protection effect. This requirement can be met in a number of ways, one of which is to change the chemical composition of the rotary seal ring to improve its friction performance and the overall efficiency of the system. The rotating seal ring under dynamic load also undertakes a more difficult task, thus prolonging the service life of the lubricating oil film as much as possible, reducing friction and avoiding seal leakage. If the friction of the rotating seal ring is too large, uneven movement will occur, resulting in serious crawling and stick-slip of the rotating seal ring.
In addition, the structural model of the sealing ring is more and more inclined to use elastomer materials and thermoplastic materials suitable for use in low-viscosity media, so when the rotating sealing ring is subjected to high-pressure high-temperature load or long-term idle, it is easy to creep. For example, when the cylinder equipment works again after shutdown, it will often fail to work normally due to low driving force.
The main purpose of the friction optimization of the rotating seal ring is to reduce the starting force required for the restart of the equipment after a long-term shutdown, and to reduce the friction of the rotating seal ring during dynamic operation under various working conditions. After many tests on the geometry, size and surface material, pressure, temperature and other physical boundary conditions of the sealing ring, a large amount of information on the friction performance of commonly used hydraulic and pneumatic seals and the rotating sealing ring material, lubricating material and sliding speed were obtained, and the static friction coefficient and sliding friction coefficient of different materials were measured.
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