Do you know what the solution to the failure of the O-ring seal is? Let's follow the editor of Low price O-ring kits box engineering to get a brief understanding of it!
1. The O-ring is damaged during installation
1. Reason This situation often occurs in dynamic and static seals. The main reason is that there are sharp edges and corners on the sealing groove or the imported chamfer does not meet the standard, and no lubricating oil is applied during installation, so that the sealing ring is cut, twisted or stuck by the sharp edge, and the surface is concave (or convex). ) marks, peeling or peeling;
2. The solution is to process the sealing groove according to the design requirements, and no sharp edges should be left. When installing, apply lubricating oil on the groove and the sealing ring. When the O-ring passes through the thread, cover the thread with a metal sheet or tape. etc., so that the sealing ring can be inserted smoothly.

2. Protrusion, gnawing and spiral failure of O-ring
1. The main reasons for the protruding and gnawing failure: the sealing gap is too large, the system pressure exceeds the sealing pressure strength or the retaining ring is not added, the sealing ring material does not meet the design hardness requirements, and the processing size of the sealing groove of the sealing ring does not meet the standard It is stipulated that the selection of the sealing ring is inappropriate (too large relative to the size of the sealing groove), etc. The main reasons for screw failure: the concentricity of the parts is too low, the lubrication is not sufficient, the sealing ring material is too soft, when some parts of the sealing ring are sliding and the other part is rolling, causing distortion or cracks;
2. The solution is to reduce the sealing gap, select O-rings of suitable size, and ensure that the concentricity of the parts meets the design requirements; the sealing grooves are processed in strict accordance with the standard, and enhanced composite seals are used, such as composite gaskets, which meet the design requirements. Seal material or add a retaining ring to prevent the O-ring from being squeezed out.
The above is what the editor of Low price O-ring kits box engineering tells:A brief introduction to the knowledge about the solution to the failure of the O-ring seal.