How will the sealing performance of Stainless Steel Airtight Parts degrade over time?
Publish Time: 2024-08-09
Stainless Steel Airtight Parts are widely used in many fields, however, their sealing performance will inevitably change over time.
First, during long-term use, Stainless Steel Airtight Parts will be affected by external environmental factors. For example, if it is in a humid environment, although stainless steel itself has a certain degree of corrosion resistance, it may still undergo a slight oxidation reaction. The oxides gradually formed on the surface may change the surface characteristics of the seal and affect its fit with the sealing contact surface, resulting in a decrease in sealing performance.
Secondly, repeated pressure changes and mechanical stresses will also affect the seal. When the seal is constantly subjected to pressure shock and deformation, its internal structure may gradually suffer fatigue damage. The microstructure of the material may have tiny cracks or plastic deformations, which will weaken the elastic recovery ability of the seal and make it unable to fit the sealing part as tightly as it did at the beginning, resulting in a decrease in sealing performance.
Furthermore, temperature changes are also an important factor. If the seal is in an environment with large temperature fluctuations for a long time, the thermal expansion and contraction effect will cause its size to change. At high temperatures, Stainless Steel Airtight Parts may become soft and the sealing force will decrease; at low temperatures, it may become brittle and its elasticity will decrease. All of these will cause the sealing performance to gradually deteriorate.
In addition, the interaction between the seal and the sealing medium cannot be ignored. Some chemical media may corrode the Stainless Steel Airtight Parts, causing its material to change, thereby affecting the sealing performance. As the use time increases, this erosion may continue to accumulate and accelerate the attenuation of the sealing performance. In order to delay the attenuation of the sealing performance, we can take measures such as regular maintenance, reasonable selection of seal materials and optimization of the use environment to extend the effective sealing time and service life of the Stainless Steel Airtight Parts as much as possible.
