Seals in the life of the use is very wide, basically with machinery to get a side of things will be used toseal. Big to cars and planes, small to lighter mouse and so on. To must use seals. There are many sealspecies, according to material points can be divided into: silicon rubber sealing ring is comparedcommonly, fluorine rubber sealing ring, ethylene propylene rubber, PTFE, chloroprene rubber,polyurethane etc. According to the use count can be divided into: acid and alkali resistant seals, seals,high temperature resistant seal, low temperature resistant seals, oil resistant seals etc.. Many mechanicalseal can not work, for example oil seal, if there is no oil seal is likely to leak, and even cause no mechanical operation. Crude oil leaked the news was often seen on television, in fact, that is the seal is not good, maybe the quality of the seal can not be. The seal is an important part of the machinery,equipment operation plays an important effect. In order to avoid the entry of foreign matter in the machinery, it is necessary to use the seal.
Not the same as seals use, it can work in different environments. For example, high and low temperature environment, the acid-base solution, oil resistant and so on. Not the same environment seal operationto choose different raw materials, high temperature resistant properties such as fluorine rubber.Important factors sometimes seal hardness is also affecting the germinal use in living, not all seals are soft, for example, PTFE seal stiff. Mechanical seal often view, abnormal timely replacement, for examplethe seal deformation, cracking and so on, the main factors affecting the service life of the seal is runningenvironment. Temperature is the main factor affecting the seal hardness. In order to add seal under low temperature elastic, permanent decline data crunch, this needs the improvement of data to rubberformulation, inside with a certain amount of plasticizer. Long soak in the operation of medium,plasticizer will gradually be running medium absorption, the formation of seals aging shorten. So often sealed parts to check. Avoid aging forming incidents from happening.