#deformation of the 0039977748 o-ring

[guangzhouhuiyuan]

Three causes of deformation of 0039977748 o-ring

The 0039977748 o-ring is one of the more common rubber products. It is widely used and the production process is relatively simple. In many cases, users may think that the 0039977748 o-ring is designed or unilaterally pressured to cause the damage of the 0039977748 o-ring.

But in fact, the root cause of the damage to the 0039977748 o-ring is the permanent deformation of the 0039977748 o-ring and the bite caused by being squeezed into the gap under the high temperature and high pressure of the working environment. 0039977748 o-ring typically relies on squeezing to deform to achieve a sealing effect. It produces contact pressure with the sealing surface during installation. When the pressure exceeds the pressure of the sealing medium, the sealing effect will be produced. If it is less than the pressure of the medium, leakage will occur. What are the reasons for the permanent deformation of the 0039977748 o-ring?

1. Compression and stretching

The amount of compression and extension of the o-ring produced by different rubber compound formulations is different. The 0039977748 o-ring will produce compression stress relaxation phenomenon under long-term compression. This phenomenon will gradually expand with time. As time goes by, the amount of compression and extension will become more and more. Small, leading to leakage caused by insufficient elasticity. The way to solve this problem is to increase the cross-sectional size of the product, but this will cause the product to increase in structure to a certain extent.

2. Temperature

Temperature is an important factor affecting the relaxation of 0039977748 o-ring, no matter what kind of rubber material, long-term use at high temperature will cause aging. The higher the temperature in the 0039977748 o-ring environment, the greater the amount of deformation, and the 0039977748 o-ring will gradually lose its elasticity.

When the product deforms more than 40%, leakage will follow. 0039977748 o-ring will have initial stress before installation, but the initial stress will slowly degrade or even disappear with the long-term relaxation of the sealing ring and the influence of temperature.