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Four ways to improve the failure deformation of rubber seals
2020/12/23
1. Can't afford the improvement measures of high-temperature rubber seals?
For rubber sealing ring can not withstand high temperature, its sealing material into a perfluoro-rubber seal ingress sealing material made of sealing ring, it can be the most resistant to high temperature too 200 degrees Celsius, acid and alkali and oil resistance good performance, that is, under the poor cooling effect can still live a long time Oh, in the actual use of the process, in the actual use of the process, The service life has been increased by a large amount after the use of O-shaped sealing ring made from imported perfluoro-rubber sealing material. The only drawback is that the cost is the most expensive! Seals made from imported fluoro-rubber seals are of excellent quality and performance.
Second, spring-blocked rubber seal improvement measures?
Engineers can according to the actual situation on the spot, the seal spring easy to block after the loss of compensating ability, such as pipeline transformation, the late still exist slotted rubber seal spring blocking serious situation, can be improved from the rubber seal ring structure, that is, the rubber seal ring structure changed to the spring peripheral type on it, This solves an improvement that cannot be compensated for after the spring of the rubber seal is easily blocked.
Third, mechanical rubber seal flushing method improvement measures?
The flushing mode is changed, the original automatic flushing is changed to the outer flushing seal ring method method, because the system water contains more suspended particulate matter, from the external introduction of sealing ring fluid into the sealing ring cavity, thereby improving the sealing ring working environment (occasion). After the sealing ring company's overall design, the original pump self-flushing water to pure desalinated water, and external flushing. After the system internal high-pressure pump booster into the sealing ring cavity, the machine seal for cooling and flushing.
Fear of the presence of small solid particles, a long time will cause accumulation, and then the phenomenon of machine seal damage. Therefore, in the machine-sealed flushing water main tube added two groups of filters, from time to time to the filter switch cleaning to ensure the quality of water. The above is about the rubber seal flushing method improvement measures.
Four, rubber sealing ring sealing material improvement measures?
The replacement of sealing material (material), because the medium (working environment and occasion) contains suspended particles, so the dynamic sealing ring is generally used with a higher hardness sealing material (material), commonly used with cobalt of its tungsten carbide carbide alloy sealing material, but the corrosion resistance of this sealing material adhesive machine is poor point, Generally not suitable for abrasive work environments and occasions. Because of the complexity of the composition, including corrosion generation points, the dynamic seal ring selected silicon carbide, silicon carbide has excellent physical, chemical and thermal properties, and is willing to have higher hardness, at the same time has good corrosion resistance. The above is an improvement and measure method for the sealing material of the mechanical rubber seal.
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