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O-ring due to "high temperature abrasion" caused by failure and measures?

Release time:

2019-06-04 12:30

Source:

O-ringFaults caused by "high temperature abrasion" and measures?
 
O-ring is a circular cross-section ring rubber seal, mainly used for mechanical parts in static conditions to prevent the leakage of liquid and gas media. In some cases, the failure of the O-ring may also be caused by the rubber sealing material. Of course, it is also the reason for the failure of the O-ring. First of all, let's find out the reason for the failure of the O-ring after the operation caused by the phenomenon of "high temperature abrasion?
 
Failure of O-ring due to "high temperature abrasion" and measures:
1. Failure state: The high temperature contact surface of the O-ring presents radial cracks, and some sealing materials may become soft, or the sealing material may become shiny due to excessive temperature.
2. Failure reason: the sealing material can not withstand high temperature, or the temperature exceeds the design temperature, or the temperature changes too fast and too frequently. 3. Solution: Select the sealing material with high temperature resistance, such as possible to reduce the sealing surface temperature
O-ring due to "excessive compression" causes failure and measures?
 
O-ring is a circular cross-section ring rubber seal, mainly used for mechanical parts in static conditions to prevent the leakage of liquid and gas media. In some cases, the O-ring can also be used as a dynamic sealing element for axial reciprocating motion and low-speed rotating motion. According to different conditions, different materials can be selected to adapt to it.
 
Of course, it is also the cause of the failure of the O-ring. First of all, let's understand the cause of the failure of the O-ring caused by the "curling" phenomenon after the operation. What are the countermeasures? * Failure and measures caused by the "excessive compression" of the O-ring? 1. Failure state: the contact surface of the O-ring is flat and deformed, and may be accompanied by cracks. 2. Failure reason: the design is unreasonable, does not consider the deformation of the material due to heat and chemical medium, or the deformation caused by excessive pressure. 3. Solution: The design of the groove should take into account the deformation of the material due to temperature and chemical medium.

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