or seal to prevent fluid leaking from the surface of solid particles between the adjacent binding and prevent external contaminants such as dust and moisture material or other parts into the interior parts of the equipment. Factors which influence the performance of a variety of different seals such as mechanical seals (packing seal, etc.) factors are temperature, medium wear, the pressures and the like. .
1 Classification seal
1, according to material classification: into rubber, plastic, polyurethane and the like;
2, classified according to the role: guide ring, dust sealing, rotary seal, shaft seal into the fixed sealing, with a sealing hole;
common name seals: sealing ring, packing, mechanical seal, oil seal, seal, packing, sealing plate, sealant, soft fillers.
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Note 2
1. In order to avoid dust or moisture in the air contacts the seal must be stored in a sealed package;
2. The seal must avoid strong light irradiation, so that the seal will not be in the air or ozone attack premature aging;
the sealing member is stored at room temperature is preferably below 30 ℃, because the temperature is too high will generate heat seal aging .