Import rubber o-rings from China manufacturer Deformation factor

　　In daily work, do not pay attention to the use of Import rubber o-rings from China manufacturer, so that the O-ring loses its sealing performance.

　　Compression and stretch. Various formulations of rubber used to make O-rings will produce compressive stress relaxation in the compressed state. At this time, the compressive stress will decrease with the increase of time. The longer the time of use, the greater the compression ratio and the greater the amount of stretching, the greater the stress drop caused by the stress relaxation of the rubber, so that the O-ring has insufficient elasticity and loses its sealing ability.

　　Import rubber o-rings from China manufacturer Note: It is advisable to try to reduce the compression ratio under the permitted usage conditions. Increasing the cross-sectional size of the O-ring is the easiest way to reduce the compression ratio, but this will increase the size of the structure.

　　It should be noted that when calculating the compression ratio, people often ignore the reduction in section height caused by the stretching of Import rubber o-rings from China manufacturer during assembly. The change in the cross-sectional area of ​​the O-ring is inversely proportional to the change in its circumference. At the same time, due to the action of tension, the cross-sectional shape of the O-ring will also change, which means that its height is reduced. In addition, under the action of surface tension, the outer surface of the O-ring becomes flatter, that is, the cross-sectional height is slightly reduced. This is also a manifestation of the compressive stress relaxation of Import rubber o-rings from China manufacturer.