2024-05-12
O-ring seal: Revealing its magical sealing principle
In many fields such as industrial manufacturing, automotive engineering, and fluid systems, the role of seals cannot be underestimated. Among them, O-ring seals have become the most widely used sealing element due to their unique design and excellent sealing performance. So, how does the O-ring achieve its efficient sealing effect? Next, we will explore its sealing principle together.
Firstly, let's understand the basic structure of O-ring seals. O-ring seals are usually made of elastic materials, such as rubber or silicone, and their cross-sectional shape is circular, hence the name "O-ring". This design enables the O-ring to have good elasticity and adaptability, and can tightly adhere to the sealing surface, forming an effective seal.
So, how does the O-ring seal achieve sealing? This is mainly due to its characteristics in the following aspects:
Pre tightening force: During the installation process, the O-ring seal will be compressed, resulting in a certain amount of pre tightening force. This pre tightening force forms a tight fit between the sealing ring and the sealing surface, preventing medium leakage.
Elastic recovery force: O-ring seals have good elasticity and will deform when compressed by external forces; When the external force disappears, it can quickly return to its original state. This elastic restoring force allows the sealing ring to maintain a stable sealing effect even when subjected to pressure fluctuations or temperature changes.
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