Hello everyone, I am the editor. Today I will introduce you to rubber sealing rings. The following content is compiled by the editor and the relevant content is for reference only.

Rubber seals are widely used in the sealing field because of their superior elasticity and pressure resistance, which can effectively prevent the leakage of media. It is precisely because of its wide application that its use scenarios and application environments are diverse and uncertain, which are important reasons why rubber seals often fail.

Overload

Each material and product has its own safe load capacity, and rubber seals are no exception. Under such overload conditions, it is easy to break.

Material aging

In many cases, material aging is also an important reason for breakage. Each material has its own lifespan. Long-term use and aging will exceed its lifespan and break; products will become hard and brittle when they age, and then stress concentration will occur on the notch, leading to breakage. Therefore, the rubber seals on mechanical products need to be replaced in time before aging and breaking to avoid safety accidents caused by rubber ring breakage.

Seal quality

The production quality of seals is closely related to the reliability of the final product. Common problems include: unstable raw material quality, wrong raw materials during rubber mixing, improper storage of raw materials or mixed rubber (cross contamination), uneven rubber mixing, improper vulcanization conditions (temperature, time, pressure, etc.), improper storage of seal products, improper use of molds, etc. These problems often involve quality control during the production process.

Design Errors

Design errors are usually caused by insufficient understanding of the product by the designer. For example, underestimation of the pressure on the seal, misunderstanding of the contact stress distribution on the sealing surface, unreasonable design of the groove for placing the seal, etc.

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