Rubber seals are widely used in the field of sealing because of their superior elasticity and compression resistance, which can effectively prevent the leakage of media; it is precisely because it is widely used, so its use scenarios and application environments are diverse and different. Certainly, these are important reasons for the frequent failure of rubber sealing rings. Fracture is an important phenomenon of failure, and fractures account for more than 80% of the bad. So what are the reasons for the rupture of rubber sealing rings? The following Just a brief introduction.
Overload of rubber sealing ring: each material and product has its own safe load, and rubber sealing ring is no exception; for example, the rated load of the rubber ring is 10N, and the working environment has a force of 20N , in the case of such overload, it is easy to break; so when designing the product, you must check the relevant information to see how much the product is loaded and whether the product is overloaded, generally not more than 90% of the product The load is relatively safe.
Material aging of rubber sealing ring: In many cases, material aging is also an important reason for fracture. Each material has its own life. If the long-term aging exceeds its own life, it will break; the product will become hard and brittle when it ages. The stress concentration on the gap leads to fracture, so the rubber sealing ring on the mechanical product needs to be replaced in time before aging and fracture, so as to avoid safety accidents caused by the rupture of the rubber ring.
Corrosion of the rubber sealing ring: It is easy to understand the fracture after the product is corroded. For example, the material of the silicone sealing ring is not resistant to oil. How to use the silicone sealing ring in an oily environment for a long time is easy to be corroded and fractured; In addition, in a chemically corrosive environment, it is easy to break without using fluorine rubber sealing ring. Only fluorine rubber sealing ring has the characteristics of corrosion resistance. Therefore, when selecting materials for products, it is necessary to understand the material characteristics and environmental media. Only A product can only play its best role when the material and the medium used are matched.
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