The reasons for deformation of rubber expansion joints.
Nov-22-12
There are various types of rubber expansion joints, divided into single-sphere rubber expansion joints, double-sphere rubber expansion joints, and reducer rubber expansion joints, etc. The components are tubular rubber parts consisting of inner and outer layers of rubber, cord fabric layer and steel wire rings, which are vulcanized and then loosely combined with metal flanges or parallel joints. Regardless of which form of rubber expansion joint will be deformed over time, the most important factor is the deformation of the rubber material, many manufacturers, in order to maximize profits, thus cutting corners, in the rubber layer does not join the polyester cord fabric, steel wire ring, which greatly reduces the pressure strength of the rubber expansion joint in use, sometimes due to excessive pressure and lead to bursting.
Rubber expansion joint sphere in the work of the media and through the sphere and other external uneven rough material constantly produce cutting, friction, just the contact point of the rubber expansion joint is pulled into tiny particles, from the rubber joint sphere surface off, the formation of loss. There is another kind of curl wear, when the smooth surface of the rubber expansion joint sphere contact, due to the role of friction, so that the vulcanized rubber then the surface is not flat deformation, and was torn to destroy, resulting in curl and surface off.
Rubber expansion joints continue to be exposed to the sun, after a long time under the sun, will form rubber expansion joints of rubber aging, rubber joint spheres show different degrees of cracking.
Long time soaking in the water medium will form some parts of the sphere are soaked deformation, although it will not affect the performance and continued use of rubber expansion joints, but also need to check or replace the sphere.
Rubber expansion joint sphere in the work of the media and through the sphere and other external uneven rough material constantly produce cutting, friction, just the contact point of the rubber expansion joint is pulled into tiny particles, from the rubber joint sphere surface off, the formation of loss. There is another kind of curl wear, when the smooth surface of the rubber expansion joint sphere contact, due to the role of friction, so that the vulcanized rubber then the surface is not flat deformation, and was torn to destroy, resulting in curl and surface off.
Rubber expansion joints continue to be exposed to the sun, after a long time under the sun, will form rubber expansion joints of rubber aging, rubber joint spheres show different degrees of cracking.
Long time soaking in the water medium will form some parts of the sphere are soaked deformation, although it will not affect the performance and continued use of rubber expansion joints, but also need to check or replace the sphere.
